CN109116004B - Method for quantitatively representing dynamic energy loss density of vulcanized rubber by adopting RPA (resilient reactive powder) - Google Patents
Method for quantitatively representing dynamic energy loss density of vulcanized rubber by adopting RPA (resilient reactive powder) Download PDFInfo
- Publication number
- CN109116004B CN109116004B CN201810994722.1A CN201810994722A CN109116004B CN 109116004 B CN109116004 B CN 109116004B CN 201810994722 A CN201810994722 A CN 201810994722A CN 109116004 B CN109116004 B CN 109116004B
- Authority
- CN
- China
- Prior art keywords
- rpa
- strain
- energy loss
- rubber
- scanning
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000004636 vulcanized rubber Substances 0.000 title claims abstract description 9
- 239000000843 powder Substances 0.000 title description 3
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 16
- 238000010057 rubber processing Methods 0.000 claims description 9
- 238000004073 vulcanization Methods 0.000 claims description 8
- 238000004513 sizing Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims 1
- 230000020169 heat generation Effects 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000009472 formulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010092 rubber production Methods 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
- 238000013191 viscoelastic testing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/44—Resins; Plastics; Rubber; Leather
- G01N33/445—Rubber
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a method for quantitatively representing dynamic energy loss density of vulcanized rubber by adopting RPA (resilient packet adhesive), wherein the energy loss density generated in a heat generation process is the ratio of the product of viscous torque and strain obtained in a strain scanning process to the volume of a rubber material in a mold cavity.
Description
Technical Field
The invention relates to a method for quantitatively representing dynamic energy loss density of vulcanized rubber by adopting RPA (resilient reactive powder adhesive), belonging to the technical field of rubber preparation.
Background
Rubber is a viscoelastic material that exhibits both elasticity and tack. In the field of tire formulation, the main means of viscoelastic test are DMA and RPA, which are generally used for the analysis and evaluation of rubber processability, and also for the evaluation of vulcanizate properties. The magnitude of the heat generation of the current formulation is mainly related by a 60 ℃ loss tangent factor tan delta ═ G '/G' (G '-shear loss modulus, G' -elastic storage modulus). This description has proved to have two drawbacks: (1) there is no theoretical basis. The formula is only an indirect description and is not narrowly derived. (2) The accuracy is poor. The same tan delta values can be obtained from different shear loss modulus and elastic storage modulus ratios. (3) the tan delta test result has a large error with the compression heat generation test result. (4) Belongs to qualitative analysis means.
Disclosure of Invention
The invention aims to solve the technical problems and provides a method for quantitatively representing the dynamic energy loss density of vulcanized rubber by adopting RPA, which is efficient and accurate. According to the method, the dynamic heat generation of the formula is directly and quantitatively evaluated through data obtained by an RPA test platform and calculation of dynamic energy loss density. The method is suitable for qualitative quantity test of the heat generation of formulas at different positions of the tire.
The invention adopts the following technical scheme: a method for quantitatively characterizing the dynamic energy loss density of vulcanized rubber by adopting RPA (resilient Ring analysis), wherein the energy loss density is calculated by adopting the following formula
Wherein E' is loss energy density/J.m-3S' is viscosity torque/N.m, epsilon is strain/%, V is the volume of the die cavity sizing material, and the volume of the die cavity sizing material is a fixed value of 4.5cm3When the RPA rubber processing instrument is used for testing a sample, the sample is vulcanized, cooled and subjected to strain scanning for 3 processes, and S' is measured by the RPA rubber processing instrument in the strain scanning process.
Further, the vulcanization test conditions during the test of the RPA rubber processing instrument are as follows: the scanning frequency is 0.5-10Hz, the scanning strain is 0.5-50%, the vulcanization temperature is 150-170 ℃, and the vulcanization time is 5-20 minutes, so that the raw rubber is cured.
Furthermore, the strain scanning condition during the test of the RPA rubber processing instrument is that the frequency is 1-20Hz, the strain epsilon is 0.2-50%, and the corresponding viscous torque S' is obtained.
The characterization method provided by the invention is based on the classical mechanics theory, is simple and easy to implement, has high reliability of test data, can provide powerful data support for the research of rubber viscoelasticity, and can rapidly analyze the processing performance of a rubber production line in time.
Drawings
FIG. 1 is a vulcanization process of the present invention using an RPA rubber processor test.
FIG. 2 is a temperature reduction process of the present invention using an RPA rubber processor.
FIG. 3 is a strain sweep of the present invention using an RPA rubber processor test.
Detailed Description
Testing by using an RPA rubber processing instrument:
(1) and (3) vulcanizing and scanning a tread sample:
as shown in fig. 1, the scanning frequency is 1Hz, the scanning strain is 1%, and the vulcanization conditions are: 170 ℃ for 10 min;
(2) temperature scanning:
as shown in fig. 2, the scanning frequency is 1Hz, the scanning strain is 1%, the scanning temperature is: at 170 ℃ and 60 ℃;
(3) strain scanning:
as shown in fig. 3: the scanning temperature is 60 ℃, the scanning frequency is 1Hz, and the scanning strain is 0.2-20%; typically, the tread stock formulation has a deformation of around 5% and a torque S "at 5% strain of 2.31 dNm.
According to formula (1); e ″ -2.31 x 10-1*5％/4.5*10-6J·m-3＝2.57kJ·m-3。
Therefore, the tread rubber has a dynamic heat generation energy loss density of 2.57 kJ.m at 5% strain-3。
Claims (3)
1. A method for quantitatively characterizing the dynamic energy loss density of vulcanized rubber by adopting RPA is characterized by comprising the following steps: the energy loss density is calculated by the following formula
Wherein E' is loss energy density/J.m-3S' is viscosity torque/N.m, epsilon is strain/%, V is the volume of the die cavity sizing material, and the volume of the die cavity sizing material is a fixed value of 4.5cm3When the RPA rubber processing instrument is used for testing a sample, the sample is vulcanized, cooled and subjected to strain scanning for 3 processes, and S' is measured by the RPA rubber processing instrument in the strain scanning process.
2. The method for quantitatively characterizing the dynamic energy loss of vulcanized rubber according to claim 1, which is characterized in that: the vulcanization test conditions during the test of the RPA rubber processing instrument are as follows: the scanning frequency is 0.5-10Hz, the scanning strain is 0.5-50%, the vulcanization temperature is 150-170 ℃, and the vulcanization time is 5-20 minutes, so that the raw material rubber is vulcanized.
3. The method for quantitatively characterizing the dynamic energy loss of vulcanized rubber according to claim 1, which is characterized in that: the strain scanning condition when the RPA rubber processing instrument is used for testing is that the frequency is 1-20Hz, the strain epsilon is 0.2-50%, and the corresponding viscous torque S' is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810994722.1A CN109116004B (en) | 2018-08-29 | 2018-08-29 | Method for quantitatively representing dynamic energy loss density of vulcanized rubber by adopting RPA (resilient reactive powder) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810994722.1A CN109116004B (en) | 2018-08-29 | 2018-08-29 | Method for quantitatively representing dynamic energy loss density of vulcanized rubber by adopting RPA (resilient reactive powder) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109116004A CN109116004A (en) | 2019-01-01 |
| CN109116004B true CN109116004B (en) | 2021-07-16 |
Family
ID=64861205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810994722.1A Active CN109116004B (en) | 2018-08-29 | 2018-08-29 | Method for quantitatively representing dynamic energy loss density of vulcanized rubber by adopting RPA (resilient reactive powder) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109116004B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596359B (en) * | 2019-10-15 | 2020-08-25 | 中国热带农业科学院农产品加工研究所 | Method for judging raw rubber processing performance of natural rubber |
| CN113933179A (en) * | 2021-10-13 | 2022-01-14 | 中国科学院长春应用化学研究所 | Mechanical property prediction method for rubber material non-isothermal vulcanization |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934452A (en) * | 1974-12-02 | 1976-01-27 | Allied Chemical Corporation | Method of determining dynamic strains in composite structures |
| JP3969821B2 (en) * | 1998-02-23 | 2007-09-05 | 横浜ゴム株式会社 | Method and apparatus for investigation and analysis of characteristics related to heat generation energy of rotating body including viscoelastic material |
| CN101187615A (en) * | 2007-12-04 | 2008-05-28 | 东风汽车有限公司 | Method for evaluating fatigue performance of rubber-plastic viscoelastic component |
| JP2009222656A (en) * | 2008-03-18 | 2009-10-01 | Yokohama Rubber Co Ltd:The | Prediction method of hat generation of running belt, prediction method of running resistance force, prediction method of running heat generation of rotation body, and prediction method of rolling resistance |
| CN103837556A (en) * | 2012-11-21 | 2014-06-04 | 住友橡胶工业株式会社 | Method for evaluating energy loss, chipping resistance and abrasion resistance of polymeric material |
| CN104964864A (en) * | 2015-07-08 | 2015-10-07 | 中国兵器工业集团第五三研究所 | Sample for compression fatigue themogenesis of vulcanized rubber, sample preparing mold and preparation method |
| EP2535828B1 (en) * | 2011-06-16 | 2018-06-20 | Sumitomo Rubber Industries, Ltd. | Method for simulating the loss tangent of rubber compound |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3958666B2 (en) * | 2002-10-11 | 2007-08-15 | Ｓｒｉスポーツ株式会社 | Method for calculating energy loss in viscoelastic material, and method for evaluating energy loss of golf ball using the method |
-
2018
- 2018-08-29 CN CN201810994722.1A patent/CN109116004B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934452A (en) * | 1974-12-02 | 1976-01-27 | Allied Chemical Corporation | Method of determining dynamic strains in composite structures |
| JP3969821B2 (en) * | 1998-02-23 | 2007-09-05 | 横浜ゴム株式会社 | Method and apparatus for investigation and analysis of characteristics related to heat generation energy of rotating body including viscoelastic material |
| CN101187615A (en) * | 2007-12-04 | 2008-05-28 | 东风汽车有限公司 | Method for evaluating fatigue performance of rubber-plastic viscoelastic component |
| JP2009222656A (en) * | 2008-03-18 | 2009-10-01 | Yokohama Rubber Co Ltd:The | Prediction method of hat generation of running belt, prediction method of running resistance force, prediction method of running heat generation of rotation body, and prediction method of rolling resistance |
| EP2535828B1 (en) * | 2011-06-16 | 2018-06-20 | Sumitomo Rubber Industries, Ltd. | Method for simulating the loss tangent of rubber compound |
| CN103837556A (en) * | 2012-11-21 | 2014-06-04 | 住友橡胶工业株式会社 | Method for evaluating energy loss, chipping resistance and abrasion resistance of polymeric material |
| CN104964864A (en) * | 2015-07-08 | 2015-10-07 | 中国兵器工业集团第五三研究所 | Sample for compression fatigue themogenesis of vulcanized rubber, sample preparing mold and preparation method |
Non-Patent Citations (5)
| Title |
|---|
| A New Method to Predict Optimum Cure Time of Rubber Compound Using Dynamic Mechanical Analysis;Khimi, S. Raa et al.;《JOURNAL OF APPLIED POLYMER SCIENCE》;20140315;第131卷(第6期);第1-17页 * |
| RPA2000橡胶加工分析仪在橡胶研究中的应用;王贵一;《特种橡胶制品》;20010131;第22卷(第1期);第56-62页 * |
| RPA分析硫黄用量对天然橡胶动态性能的影响;毕薇娜 等;《特种橡胶制品》;20101031(第5期);第12-14页 * |
| 橡胶压缩屈挠温升与生热和导热关系的研究;曾玉铧;《中国优秀硕士论文全文数据库 工程科技Ⅰ辑》;20151215;参见第2.4.8节 * |
| 橡胶在动态载荷下的能量损耗分析;智杰颖 等;《高分子学报》;20170430(第4期);参见第4.3节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109116004A (en) | 2019-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112789315B (en) | Rubber composition | |
| Dick et al. | Quality assurance of natural rubber using the rubber process analyzer | |
| CN109116004B (en) | Method for quantitatively representing dynamic energy loss density of vulcanized rubber by adopting RPA (resilient reactive powder) | |
| US20140213706A1 (en) | Unvulcanized rubber composition for calendaring and method for manufacturing topping rubber using the same | |
| CN104629126B (en) | The application of rubber composition and vulcanized rubber and vulcanized rubber | |
| EP3165565A1 (en) | Vulcanized rubber composition and tire using same | |
| JP2018070787A (en) | Polymer for kneading machine | |
| CN109666194A (en) | Wear-resisting ageing-resistant high-strength natural rubber of one kind and the preparation method and application thereof | |
| CN103788432B (en) | The application of rubber combination and vulcanized rubber and preparation method thereof and vulcanized rubber | |
| WO2015109789A1 (en) | Rubber composition containing organosilane coupling agent and carbon black and preparation method therefor | |
| CN113933179A (en) | Mechanical property prediction method for rubber material non-isothermal vulcanization | |
| CN104098810A (en) | Composition, application of composition in damping material preparation, damping material and preparation method of damping material | |
| JP2004077274A (en) | Method and device for evaluating workability of visco-elastic material, working condition setting method and working device, and working management method | |
| CN112881662A (en) | Method for detecting reinforcing degree of filler in rubber and application of filler | |
| JP2017171797A (en) | Method for measuring viscosity in vulcanization initiation temperature range of unvulcanized rubber composition containing vulcanizer | |
| JP7532348B2 (en) | Rubber composition | |
| CN110501478A (en) | A kind of detection method of natural rubber molecular weight | |
| EP4061645B1 (en) | Rubber composition including a functionalised polybutadiene | |
| CN107652479A (en) | A kind of tennis sizing material of beta-type silicon carbide whisker and rubber blending and preparation method thereof | |
| JP2017110977A (en) | Method for analyzing crosslinked state | |
| CN102477187B (en) | A method of adding white carbon black to improve the performance of butyl rubber | |
| IT202100030077A1 (en) | PREDICTIVE METHOD BASED ON MACHINE LEARNING FOR THE DEVELOPMENT OF COMPOUNDS FOR TIRE TREAD COMPOUNDS | |
| CN106032417B (en) | Rubber composition and vulcanized rubber and its application | |
| CN112967768B (en) | Calculation method of wet land adhesion friction coefficient of vulcanized rubber composition and application of method in tire design | |
| CN112883320B (en) | Calculation method of wet land hysteresis friction coefficient of vulcanized rubber composition and application of calculation method in tire design |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |