SU52072A1 - The method of obtaining plastic mass - Google Patents
The method of obtaining plastic massInfo
- Publication number
- SU52072A1 SU52072A1 SU181A SU181A SU52072A1 SU 52072 A1 SU52072 A1 SU 52072A1 SU 181 A SU181 A SU 181A SU 181 A SU181 A SU 181A SU 52072 A1 SU52072 A1 SU 52072A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- resin
- plastic mass
- sawdust
- ammonia
- acid
- Prior art date
Links
- 239000004033 plastic Substances 0.000 title claims description 8
- 229920003023 plastic Polymers 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 239000003518 caustics Substances 0.000 claims description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims description 2
- 239000008103 glucose Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims 2
- 229920003987 resole Polymers 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Landscapes
- Compounds Of Unknown Constitution (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Description
Древесина имеет большое значение в производстве пластических масс, в частности фенопластов, получаемых из прессовочных порошков на основе фенолоальдегидных искусственных смол, поскольку в порошках, а, следовательно , и в издели х, содержитс около древесной муки.Wood is of great importance in the production of plastics, in particular, phenolic plastics obtained from pressing powders based on phenolic resins, and artificial resins, because in powders and, consequently, in products, are found around wood flour.
Известно, что в определенных услови х из одной только древесной муки или опилок без добавок или с некоторыми добавками (патенты Жинтета, Ушакова, работы ВЭИ и др.) можно получить продукты типа пластических масс. Наиболее характерным условием при этом вл етс обычно сравнительно высока температура прессовани . Недостаточна водостойкость этих масс заставила искать новые пути, в частности вы вилс путь частичного гидролиза древесины в цел х деполимеризации углеводов древесины и придани ей большей податливости при прессовании.It is known that, under certain conditions, it is possible to obtain products such as plastics by using only wood flour or sawdust with no additives or with some additives (patents by Zhintet, Ushakov, works by VEI, etc.). The most characteristic condition for this is usually a relatively high pressing temperature. The lack of water resistance of these masses made it necessary to look for new ways, in particular, the way of partial hydrolysis of wood was found in order to depolymerize wood carbohydrates and give it greater flexibility during pressing.
Явторами насто ш,его изобретени найдено, что древесно-пластическа масса, имеюш,а высокие механические показатели, удовлетворительную водостойкость и кислотоупорность, может быть получена, если древесные опилки обработать серной кислотойAs inventors of his invention, it was found that the wood-plastic mass, and having high mechanical properties, satisfactory water resistance and acid resistance, can be obtained if sawdust is treated with sulfuric acid
и после удалени избытка кислоты, кислую массу нейтрализовать аммиаком или едкой щелочью (или же отмыть кислоту водой) и ввести в нейтрализованную массу 15-25 /0 резольной фенолформальдегидной или другой смолы, получаемой конденсацией фенолов с различными соединени ми или природными растительными материалами . Прессование прессовочных порошков происходит в услови х, подобных обычным карболитовым порошкам , но при немного более высокой температуре (на 10-20°). Получаема с введением 17-IS /o резольного бакелита пластмасса имеет прочность на изгиб 700-900 KZJCM, прочность на удар 7-11 и привес в воде на 1 сутки 0,5/о, т. е. несколько выше обычных фенолопластов и много лучше древесно-пластических масс Мэдисоновской лаборатории и ЦНИЛХИ, не говор уже о массах Барка ле и ВЭИ.and after removing the excess acid, neutralize the acidic mass with ammonia or caustic alkali (or wash the acid with water) and introduce 15-25 / 0 reticulated phenol-formaldehyde resin or other resin into the neutralized mass obtained by condensation of phenols with various compounds or natural plant materials. Pressing of pressing powders takes place under conditions similar to conventional carbolite powders, but at a slightly higher temperature (10-20 °). The plastic obtained with the introduction of 17-IS / o rezol bakelite has a bending strength of 700-900 KZJCM, a impact strength of 7-11 and a weight gain of 0.5 / o in water for 1 day, i.e. slightly higher than conventional phenol plastic and much better wood-plastic mass of the Madison laboratory and the Central Scientific Research Institute, not speaking already about the masses of Bark le and VEI.
Приготовление массы может быть характеризовано следующими примерами:The preparation of the mass can be characterized by the following examples:
Пример 1. 100 вес. ч. древесных опилок обрабатывают серной кислотой (70 в. ч. кислоты или 400-1000 в. ч. 0,5-1, кислоты) при комнатной температуре или приExample 1. 100 wt. hours sawdust treated with sulfuric acid (70 W. Acid or 400-1000 V. H. 0.5-1, acid) at room temperature or at
нагревании до 80-100°, раствора отдел ют и опилки высушивают при 80-90° до влажности не выше 1-2/о. Высушенные опилки измельчают на шаровой мельнице, нейтрализуют парами аммиака, смешивают С 15-25/о резольной смолы (в виде 25 или 50 /о-го спиртового раствора), и по удалении спирта прессуют под давлением 250-400 кг1см при температуре прессформы 140-165° в течение 0,5-1,5 мин. на 1 мм толщины издели ; при необходимости производитс предварительное таблетирование порошка.heated to 80-100 °, the solution is separated and sawdust is dried at 80-90 ° to a humidity not higher than 1-2 / o. Dried sawdust is ground in a ball mill, neutralized with ammonia vapors, mixed with 15-25 / o rezol resin (in the form of a 25 or 50 / oh alcohol solution), and after removal of the alcohol is pressed under a pressure of 250-400 kg1cm at a mold temperature of 140- 165 ° for 0.5-1.5 min. 1 mm thickness of the product; if necessary, pre-tableting of the powder is performed.
П р и м е р 2. То же, но с заменой нейтрализации парами аммиака нейтрализацией едкой щелочью, вводимой в спиртовом растворе совместно со смолой.PRI mme R 2. The same, but with the replacement of the neutralization of ammonia vapor neutralization of caustic alkali introduced into the alcohol solution together with the resin.
Пример 3. То же, но с удалением кислоты из кислого порошка отмывкой водой вместо нейтрализации.Example 3. The same, but with the removal of acid from the acidic powder by washing with water instead of neutralization.
Пример 4. То же, как в примерах 1-3, но с добавкой дл увеличени текучести .порошка кроме смолыExample 4. Same as in examples 1-3, but with an additive to increase the fluidity of the powder except resin
около одного из следующих веществ: фурфурола, глюкозы, фенола, или же смеси их.about one of the following substances: furfural, glucose, phenol, or a mixture of them.
Предмет изобретени .The subject matter of the invention.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU181A SU67397A1 (en) | 1945-07-20 | A method of manufacturing helical springs with non-circular coils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU181A SU67397A1 (en) | 1945-07-20 | A method of manufacturing helical springs with non-circular coils |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SU52072A1 true SU52072A1 (en) | 1936-11-30 |
| SU64962A1 SU64962A1 (en) | 1945-08-31 |
| SU67397A1 SU67397A1 (en) | 1946-12-31 |
Family
ID=
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