DE3735502A1 - Crosslinkable plastic compound, in particular for use in scan regions of electron irradiation units - Google Patents
Crosslinkable plastic compound, in particular for use in scan regions of electron irradiation unitsInfo
- Publication number
- DE3735502A1 DE3735502A1 DE19873735502 DE3735502A DE3735502A1 DE 3735502 A1 DE3735502 A1 DE 3735502A1 DE 19873735502 DE19873735502 DE 19873735502 DE 3735502 A DE3735502 A DE 3735502A DE 3735502 A1 DE3735502 A1 DE 3735502A1
- Authority
- DE
- Germany
- Prior art keywords
- plastic compound
- compound according
- crosslinkable
- crosslinkable plastic
- cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 33
- 229920003023 plastic Polymers 0.000 title claims abstract description 33
- 150000001875 compounds Chemical class 0.000 title claims abstract description 31
- 230000005855 radiation Effects 0.000 claims description 11
- 238000004132 cross linking Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 229920002367 Polyisobutene Polymers 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- 239000002178 crystalline material Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004708 Very-low-density polyethylene Substances 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- -1 chalk Substances 0.000 claims description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 4
- 229920006245 ethylene-butyl acrylate Polymers 0.000 claims description 4
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 claims description 4
- 239000005042 ethylene-ethyl acrylate Substances 0.000 claims description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 4
- 229920001866 very low density polyethylene Polymers 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical group [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- QLZJUIZVJLSNDD-UHFFFAOYSA-N 2-(2-methylidenebutanoyloxy)ethyl 2-methylidenebutanoate Chemical compound CCC(=C)C(=O)OCCOC(=O)C(=C)CC QLZJUIZVJLSNDD-UHFFFAOYSA-N 0.000 claims description 2
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical group C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 claims description 2
- UJAWGGOCYUPCPS-UHFFFAOYSA-N 4-(2-phenylpropan-2-yl)-n-[4-(2-phenylpropan-2-yl)phenyl]aniline Chemical compound C=1C=C(NC=2C=CC(=CC=2)C(C)(C)C=2C=CC=CC=2)C=CC=1C(C)(C)C1=CC=CC=C1 UJAWGGOCYUPCPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 229920002402 Oppanol® B 100 Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 2
- QYMGIIIPAFAFRX-UHFFFAOYSA-N butyl prop-2-enoate;ethene Chemical compound C=C.CCCCOC(=O)C=C QYMGIIIPAFAFRX-UHFFFAOYSA-N 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 239000003380 propellant Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 235000006708 antioxidants Nutrition 0.000 claims 3
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims 1
- 239000000178 monomer Substances 0.000 claims 1
- 239000004071 soot Substances 0.000 claims 1
- 230000006855 networking Effects 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/10—Organic substances; Dispersions in organic carriers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/005—Stabilisers against oxidation, heat, light, ozone
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Die Erfindung betrifft ein vernetzbares Kunststoffcompound, ins besondere für den Einsatz in Scan-Bereichen von Elektronenbe strahlungsanlagen.The invention relates to a crosslinkable plastic compound, ins especially for use in scan areas of Elektronbe radiation systems.
Vernetzbare Kunststoffcompounds sind in vielfältiger Weise be kannt, doch besteht die Gefahr, daß solche vernetzten Kunststoff compounds nach der Vernetzung nicht so resistent gegenüber wei teren Elektronenbestrahlungen sind, wie es zum Beispiel beim Ein satz in Scan-Bereichen von Elektronenbestrahlungsanlagen der Fall sein muß. Weiterhin sind in solchen Einsatzbereichen Kunst stoffe gefordert, die flexibel bleiben und dabei eine griffige Oberfläche aufweisen, wie sie zum Beispiel für den Transport von Bestrahlungsgütern innerhalb der Elektronenbestrahlungsanlage während des Vernetzungsvorganges benötigt werden.Crosslinkable plastic compounds can be used in many different ways knows, but there is a risk that such cross-linked plastic compounds after crosslinking not so resistant to white tere electron irradiations, as is the case for set in scan areas of electron irradiation systems Must be the case. Furthermore, art is used in such areas required fabrics that remain flexible and yet have a good grip Have surface, such as for the transport of Irradiation goods within the electron irradiation facility are required during the networking process.
Aufgabe der Erfindung ist nun somit, einen vernetzbaren Kunst stoff zu schaffen, der nach erfolgter Vernetzung gegenüber wei terer Elektronenbestrahlung resistent ist, flexibel bleibt und zudem eine griffige Oberfläche aufweist. Die gestellte Aufgabe wird nun mit einem vernetzbaren Kunststoffcompound der eingangs geschilderten Art dadurch gelöst, daß es aus einer Mischung elastomerer und teilkristalliner Werkstoffe unterschiedlicher Anteile und aus Füllstoffen mit Antioxidanssystemen gebildet ist und daß es nach der Vernetzung gegenüber Elektronenbestrah lung resistent ist und eine griffige Oberfläche mit Antirutsch effekt aufweist.The object of the invention is therefore a networkable art to create material that, after networking, knows resistant to electron radiation, remains flexible and also has a non-slip surface. The task at hand is now the start with a networkable plastic compound described type solved in that it consists of a mixture elastomeric and semi-crystalline materials of different Portions and formed from fillers with antioxidant systems and that after crosslinking it is exposed to electrons lung is resistant and a non-slip surface with anti-slip has effect.
Gemäß der Erfindung ergeben sich nun Vorteile gegenüber dem Stand der Technik besonders darin, daß man hiermit Anwendungs bereiche für Kunststoffe auch für den Einsatz mit intensiver Elektronenbestrahlung, wie sie in Bestrahlungsanlagen herr schen, erschließen kann. Hierbei ist von besonderer Bedeutung, daß diese Werkstoffe nach ihrer eigenen Vernetzung, die entwe der auf chemischer Weise oder auch in einem Vernetzungsvorgang mit Elektronenbestrahlung vernetzt sind, bei weiterem Einsatz elektronenstrahlenresistent sind und dabei ihre vorher erlang ten Eigenschaften beibehalten, wie die Elastizität, die Flexi bilität, die Beständigkeit gegen Ozon, Lösungsmitteln und so weiter. Außerdem ist für viele Anwendungsfälle wichtig, daß diese Werkstoffe zusätzlich eine griffige Oberfläche (Grip- Oberfläche) aufweisen, die sogar zu einem gewissen Antirutsch effekt führt. Weiterhin ist von Vorteil, daß ein derartiges Kunststoffcompound extrudierbar oder auch spritzgußfähig ist, so daß sich entsprechende Formen in einfacher Weise herstellen lassen. Außerdem ist möglich, ein solches Kunststoffcompound in Lösung mit Estern, Ketonen und Aromaten wie u. a. auch Ethyl acetat, Aceton, Methylethylketon, Toluol und Gemischen dieser Stoffe als dünne Schicht in flüssiger oder pastöser Form auf einem Gegenstand aufzutragen, wobei eine gute Metallhaftung gegeben ist. Das Kunststoffcompound selbst besteht nun aus ei nem Blend aus elastomeren und teilkristallinen Grundwerkstof fen, so zum Beispiel:According to the invention, there are now advantages over the State of the art particularly in that application areas for plastics also for use with intensive Electron radiation, as is the case in radiation systems can open up. It is particularly important here that these materials according to their own networking, which either the chemical way or in a crosslinking process are cross-linked with electron radiation, with further use are resistant to electron beams and at the same time achieve theirs Maintain properties such as elasticity, flexi bility, resistance to ozone, solvents and so on continue. It is also important for many applications that these materials also have a non-slip surface (grip Surface), which even leads to a certain anti-slip effect leads. It is also advantageous that such a Plastic compound is extrudable or also injection moldable, so that appropriate shapes can be produced in a simple manner to let. Such a plastic compound is also possible in solution with esters, ketones and aromatics such as u. a. also ethyl acetate, acetone, methyl ethyl ketone, toluene and mixtures thereof Fabrics as a thin layer in liquid or pasty form to apply an object, with good metal adhesion given is. The plastic compound itself now consists of egg nem blend of elastomeric and semi-crystalline base material fen, for example:
EAE = Ethylenacrylatelastomer, wie z. B. das unter dem
Handelsnamen bekannte Vamac B 124 (Fa. E. J. Du Pont
de Nemours & Co., Wilmington)
EP(D)M = Ethylenpropylen (Dien) monomer
VLDPE = Very low density polyethylen (Linear very low density
- Linear ultralow density - PE)
PIB = Polyisobutylen (Polyisobuten), wie zum Beispiel das
unter dem Handelsnamen bekannte Oppanol B 100 (BASF AG,
Ludwigshafen/Rh)
EVA = Ethylenvinylacetat
EEA = Ethylenethylacrylat
EBA = EthylenbutylacrylatEAE = ethylene acrylate elastomer, such as. B. the well-known Vamac B 124 (EJ Du Pont de Nemours & Co., Wilmington)
EP (D) M = ethylene propylene (diene) monomer
VLDPE = Very low density polyethylene (Linear very low density - Linear ultralow density - PE)
PIB = polyisobutylene (polyisobutene), such as, for example, the Oppanol B 100 known under the trade name (BASF AG, Ludwigshafen / Rh)
EVA = ethylene vinyl acetate
EEA = ethylene ethyl acrylate
EBA = ethylene butyl acrylate
Die Mischungsverhältnisse können je nach Anwendungsfall ent sprechend variiert werden, wobei mit geeigneten Füllstoffen, wie zum Beispiel Ruß, Talkum, Kreide, Kaolin, Kieselsäure, Bariumsulfat, (zum Beispiel das unter dem Handelsnamen bekannte Blancfixe), Aluminiumoxid, Zinkoxid, Bleisulfat, Glasfasern, Ge mische aus diesen Stoffen und vieles mehr, die gewünschte Kon sistenz erreicht werden kann. Außerdem werden geeignete Anti oxidans-Systeme eingefügt, wie zum Beispiel die unter den Han delsnamen bekannten Stoffe Naugard 445, Vulkanox Hs, Irga nox 1076, Stabaxol P, Naugard XL 1 und viele mehr.The mixing ratios can vary depending on the application be varied accordingly, using suitable fillers, such as carbon black, talc, chalk, kaolin, silica, Barium sulfate, (for example that known under the trade name Blancfixe), aluminum oxide, zinc oxide, lead sulfate, glass fibers, Ge mix from these substances and much more, the desired con assistance can be achieved. In addition, suitable anti oxidans systems inserted, such as those under the Han Known fabrics Naugard 445, Vulkanox Hs, Irga nox 1076, Stabaxol P, Naugard XL 1 and many more.
Diese Antioxydans dienen als Alterungsschutzmittel, als Hitze stabilisatoren, als Sauerstoffakzeptoren gegen Ozonbildung, als Metallinhibitoren zur Verbesserung der Haftung auf Metallober flächen oder als Mittel zur Verbesserung der Vernetzbarkeit bei Elektronenbestrahlung.These antioxidants serve as anti-aging agents, as heat stabilizers, as oxygen acceptors against ozone formation, as Metal inhibitors to improve adhesion to metal surfaces areas or as a means of improving connectivity Electron radiation.
Als Mischungsverhältnisse haben sich folgende Werte für beson ders geeignet herausgestellt:The following values have been found for the mixing ratios: other suitable:
elastomere und teilkristalline Werkstoffe: 25-70%
Füllstoffe: 10-60%
Antioxidans: 0,1-3%
eventuell weitere Zusätze: 0-10%elastomeric and semi-crystalline materials: 25-70%
Fillers: 10-60%
Antioxidant: 0.1-3%
possibly further additions: 0-10%
Um die Oberfläche in der gewünschten Griffigkeit zu erhalten, werden außerdem keine sonst üblichen, migrierende Bestandteile, wie Wachse, Öle etc. beigemischt.In order to maintain the surface in the desired grip, furthermore, no other usual, migrating components, such as waxes, oils etc.
Diese Kunststoffcompounds sind also chemisch oder auch durch eine erste Elektronenbestrahlung vernetzbar und erhalten auf diese Weise die später gewünschten Eigenschaften, die jedoch nun auch in Bereichen mit weiterer Elektronenbestrahlung bei behalten werden. Sie bleiben ihrer vorher eingestellten Kon sistenz entsprechend flexibel, auch hochelastisch und besitzen entsprechend der Vernetzung hohe Festigkeit und Dehnungseigen schaften, sind hallogenfrei und oberflächenaktiv und besitzen dadurch sogenannten Antirutscheffekt. Weiterhin sind diese Kunststoffcompounds in Dauerbelastung hochtemperaturfest für etwa 130°C und gegen die gebräuchlichsten Lösungsmittel, Öl-, Treib- und Schmiermittel resistent.So these plastic compounds are chemical or through a first electron irradiation can be cross-linked and get on this way the properties you want later, however now also in areas with further electron radiation be kept. They remain in their previously set accounts suitably flexible, also highly elastic and possess high strength and elongation properties according to the cross-linking shafts, are free of halogens and surface active and possess thereby the so-called anti-slip effect. Furthermore, these are Plastic compounds in permanent load, high temperature resistant for about 130 ° C and against the most common solvents, oil, Propellant and lubricant resistant.
Die Dichte des Kunststoffcompounds ist kleiner als 2, vorzugs weise kleiner als 1. Der "Melt Flow Index MFI2/190 bei einer Be lastung von 2 Kilopond und einer Temperatur von 190°C beträgt ungefähr 1. Die Hot Set Dehnung (HSD) liegt bei ca. 10% und ist eine Wertaussage über die Vernetzungsdichte. Die Härte nach Shore A/D ist im unvernetzten Zustand 50/15 und nach der Elek tronenbestrahlung mit mehr als 400 KGy beträgt die Härte nach Shore A/D 70/25.The density of the plastic compound is less than 2, preferably less than 1. The "Melt Flow Index MFI 2/190 at a load of 2 kilopond and a temperature of 190 ° C is approximately 1. The hot set elongation (HSD) is at about 10% and is a value statement about the crosslinking density The hardness according to Shore A / D is 50/15 in the uncrosslinked state and after the electron irradiation with more than 400 KGy the hardness according to Shore A / D is 70/25.
Mit den Produkten aus dem erfindungsgemäßen Kunststoffcompound ergeben sich nun neue und vorteilhafte Anwendungen in Berei chen mit Einwirkung von Elektronenstrahlenenergie. So lassen sich nun schrumpfbare Kunststoffprodukte herstellen, die auch in den Scan-Bereichen von Elektronenstrahlenanlagen eingesetzt werden können. So läßt sich zum Beispiel die Kraftübertragung mit einem Riemenantrieb aus dem Kunststoffcompound ausführen. Besondere Vorteile erhält man durch Anwendung dieses Kunststoff compounds als Beschichtung, zum Beispiel für Stückgut-Loren in den Scan-Bereichen der Elektronenbestrahlung oder auch als Be schichtung von Transportrollen in diesen Bereichen. Man erreicht infolge der aktiven Oberfläche eine höhere Reibung mit sogenann tem Antirutscheffekt. Dies hat zum Beispiel besondere Vorteile bei den sogenannten "handlings", den Umlenkrollen zum Führen von zu vernetzenden Rohren in den Scan-Bereichen. Bisher trat bei dieser Art von Transport die Schwierigkeit auf, daß sich die zu transportierenden Rohre bei der Fortbewegung verdrehten. Durch diese Rutscheffekte wurde die Strahlendosis über den Um fang hinweg ungleichmäßig verteilt. Auf diese Weise ergaben sich recht unterschiedliche Vernetzungsausbeuten. Dieses un kontrollierte Gleiten in verschiedenen Richtungen ist nun als Fehlerquelle beseitigt, wenn die Transportrollen mit einer Be schichtung aus dem erfindungsgemäßen Kunststoffcompound als Antirutschbelag versehen sind. With the products from the plastic compound according to the invention there are now new and advantageous applications in the field chen with the action of electron beam energy. Let it be now produce shrinkable plastic products that also used in the scanning areas of electron beam systems can be. For example, the power transmission Execute with a belt drive from the plastic compound. Special advantages are obtained by using this plastic compounds as a coating, for example for general cargo lorries in the scan areas of electron radiation or as Be layering of transport rollers in these areas. You get there due to the active surface a higher friction with so-called anti slip effect. This has particular advantages, for example with the so-called "handlings", the guide rollers for guiding of pipes to be networked in the scan areas. So far kicked with this type of transportation the difficulty is that the pipes to be transported twisted when moving. Due to these slipping effects, the radiation dose over the Um start spreading unevenly. Surrendered this way quite different networking yields. This un controlled sliding in different directions is now considered Source of error eliminated when the transport rollers with a loading Layering from the plastic compound according to the invention as Anti-slip covering are provided.
So können auch außerdem Anwendungen mit extremen Anforderungs profilen positiv beeinflußt werden. Auch eine Containement-An wendung in Kernkraftwerken ist ebenfalls mit diesen Werkstoffen denkbar.This also allows applications with extreme requirements profiles are positively influenced. Also a containment an Application in nuclear power plants is also with these materials conceivable.
Claims (15)
EAE = Ethylenacrylatelastomer, wie z. B. das unter dem Handelsnamen bekannte Vamac B 124 (Fa. E. J. Du Pont des Nemours & Co., Wilmington)
EP(D)M = Ethylenpropylen-(DIEN)-monomer
VLDPE = Very low density polyethylen (Linear very low density - Linear ultralow density - PE)
PIB = Polyisobutylen (Polyisobuten), wie zum Beispiel das unter dem Handelsnamen bekannte Oppanol B 100 (BASF AG, Ludwigshafen/Rh)
EVA = Ethylenvinylacetat
EEA = Ethylenethylacrylat
EBA = Ethylenbutylacrylat.12. Crosslinkable plastic compound according to one of the preceding claims, characterized in that as an elastomer and / or. semi-crystalline materials in various proportions the following materials are used:
EAE = ethylene acrylate elastomer, such as. B. the well-known Vamac B 124 (Fa. EJ Du Pont des Nemours & Co., Wilmington)
EP (D) M = ethylene propylene (DIEN) monomer
VLDPE = Very low density polyethylene (Linear very low density - Linear ultralow density - PE)
PIB = polyisobutylene (polyisobutene), such as, for example, the Oppanol B 100 known under the trade name (BASF AG, Ludwigshafen / Rh)
EVA = ethylene vinyl acetate
EEA = ethylene ethyl acrylate
EBA = ethylene butyl acrylate.
Naugard 445, Vulkanox Hs, Irganox 1076, Stubaxol P, Naugard XL 1 u. a.14. Crosslinkable plastic compound according to one of the preceding claims, characterized in that the following and known under the trade names are contained as an antioxidant system alone or in a mixture:
Naugard 445, Vulkanox Hs, Irganox 1076, Stubaxol P, Naugard XL 1 and others
elastomere und teilkristalline Werkstoffe: 25-70%
Füllstoffe: 10-60%
Antioxidans: 0,1-3%
weitere Zusätze: 0-10%.15. Crosslinkable plastic compound according to one of the preceding claims, characterized in that the following mixing ratios are complied with in the areas:
elastomeric and semi-crystalline materials: 25-70%
Fillers: 10-60%
Antioxidant: 0.1-3%
other additives: 0-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873735502 DE3735502A1 (en) | 1987-10-20 | 1987-10-20 | Crosslinkable plastic compound, in particular for use in scan regions of electron irradiation units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873735502 DE3735502A1 (en) | 1987-10-20 | 1987-10-20 | Crosslinkable plastic compound, in particular for use in scan regions of electron irradiation units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3735502A1 true DE3735502A1 (en) | 1989-05-03 |
Family
ID=6338725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19873735502 Withdrawn DE3735502A1 (en) | 1987-10-20 | 1987-10-20 | Crosslinkable plastic compound, in particular for use in scan regions of electron irradiation units |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3735502A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7271209B2 (en) | 2002-08-12 | 2007-09-18 | Exxonmobil Chemical Patents Inc. | Fibers and nonwovens from plasticized polyolefin compositions |
| US7531594B2 (en) | 2002-08-12 | 2009-05-12 | Exxonmobil Chemical Patents Inc. | Articles from plasticized polyolefin compositions |
| US7619026B2 (en) | 2002-08-12 | 2009-11-17 | Exxonmobil Chemical Patents Inc. | Plasticized polyolefin compositions |
| US7622523B2 (en) | 2002-08-12 | 2009-11-24 | Exxonmobil Chemical Patents Inc. | Plasticized polyolefin compositions |
| US7998579B2 (en) | 2002-08-12 | 2011-08-16 | Exxonmobil Chemical Patents Inc. | Polypropylene based fibers and nonwovens |
| US8003725B2 (en) | 2002-08-12 | 2011-08-23 | Exxonmobil Chemical Patents Inc. | Plasticized hetero-phase polyolefin blends |
| US8192813B2 (en) | 2003-08-12 | 2012-06-05 | Exxonmobil Chemical Patents, Inc. | Crosslinked polyethylene articles and processes to produce same |
| US8389615B2 (en) | 2004-12-17 | 2013-03-05 | Exxonmobil Chemical Patents Inc. | Elastomeric compositions comprising vinylaromatic block copolymer, polypropylene, plastomer, and low molecular weight polyolefin |
| US8513347B2 (en) | 2005-07-15 | 2013-08-20 | Exxonmobil Chemical Patents Inc. | Elastomeric compositions |
-
1987
- 1987-10-20 DE DE19873735502 patent/DE3735502A1/en not_active Withdrawn
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7985801B2 (en) | 2002-08-12 | 2011-07-26 | Exxonmobil Chemical Patents Inc. | Fibers and nonwovens from plasticized polyolefin compositions |
| US8211968B2 (en) | 2002-08-12 | 2012-07-03 | Exxonmobil Chemical Patents Inc. | Plasticized polyolefin compositions |
| US7619026B2 (en) | 2002-08-12 | 2009-11-17 | Exxonmobil Chemical Patents Inc. | Plasticized polyolefin compositions |
| US7622523B2 (en) | 2002-08-12 | 2009-11-24 | Exxonmobil Chemical Patents Inc. | Plasticized polyolefin compositions |
| US7632887B2 (en) | 2002-08-12 | 2009-12-15 | Exxonmobil Chemical Patents Inc. | Plasticized polyolefin compositions |
| US7875670B2 (en) | 2002-08-12 | 2011-01-25 | Exxonmobil Chemical Patents Inc. | Articles from plasticized polyolefin compositions |
| US7531594B2 (en) | 2002-08-12 | 2009-05-12 | Exxonmobil Chemical Patents Inc. | Articles from plasticized polyolefin compositions |
| US8003725B2 (en) | 2002-08-12 | 2011-08-23 | Exxonmobil Chemical Patents Inc. | Plasticized hetero-phase polyolefin blends |
| US7271209B2 (en) | 2002-08-12 | 2007-09-18 | Exxonmobil Chemical Patents Inc. | Fibers and nonwovens from plasticized polyolefin compositions |
| US8217112B2 (en) | 2002-08-12 | 2012-07-10 | Exxonmobil Chemical Patents Inc. | Plasticized polyolefin compositions |
| US7998579B2 (en) | 2002-08-12 | 2011-08-16 | Exxonmobil Chemical Patents Inc. | Polypropylene based fibers and nonwovens |
| US8192813B2 (en) | 2003-08-12 | 2012-06-05 | Exxonmobil Chemical Patents, Inc. | Crosslinked polyethylene articles and processes to produce same |
| US8703030B2 (en) | 2003-08-12 | 2014-04-22 | Exxonmobil Chemical Patents Inc. | Crosslinked polyethylene process |
| US8389615B2 (en) | 2004-12-17 | 2013-03-05 | Exxonmobil Chemical Patents Inc. | Elastomeric compositions comprising vinylaromatic block copolymer, polypropylene, plastomer, and low molecular weight polyolefin |
| US8513347B2 (en) | 2005-07-15 | 2013-08-20 | Exxonmobil Chemical Patents Inc. | Elastomeric compositions |
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| Date | Code | Title | Description |
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| 8141 | Disposal/no request for examination |