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A low-temperature-resistant high-resilience rubber windshield material, its preparation method and windshield

A technology with low temperature resistance and high resilience, which is applied in the field of windshield, low temperature resistant and high resilience rubber windshield materials, and can solve problems such as distortion, windshield capsules not being able to return to their original shape in time, and poor flexibility

Active Publication Date: 2022-01-25
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the EPDM rubber we currently use is amorphous, it still has certain crystallization when the ethylene content is high, which makes the product poor in elasticity at low temperature and poor in flexibility under high deformation. The windshield capsule will be greatly distorted and deformed due to the extrusion of the windshield capsule when passing the bend, so that the windshield capsule cannot return to its original shape in time, making a "whistling sound", and more seriously, flex cracks or even cracks will occur, resulting in product failure
In addition, EPDM rubber is non-self-reinforcing rubber, its own strength is low, only about 2MPa, and it is a flammable rubber. Therefore, reinforcing filler materials and a large amount of flame retardant are required to meet the physical and mechanical requirements of windshield products. Performance requirements and flame retardant requirements

Method used

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  • A low-temperature-resistant high-resilience rubber windshield material, its preparation method and windshield
  • A low-temperature-resistant high-resilience rubber windshield material, its preparation method and windshield

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The components and parts by mass of the light-colored rubber windshield material with low temperature resistance, high resilience and long life are as follows: EPDM rubber, 75 parts; EPDM rubber, 25 parts; Propylene rubber, 8 parts; maleic anhydride modified polybutadiene (commercially available), 8 parts; zinc oxide, 5 parts; stearic acid, 1 part; modified white carbon black, 20 parts; Flame retardant, 35 parts; Dicumyl peroxide, 1.5 parts; Sulfur, 0.3 parts; N, N'-m-phenylene polymaleimide, 0.7 parts; Triallyl isocyanurate, 0.9 parts; N, N, N-tetraisobutylthiuram sulfide, 0.9 parts; titanium dioxide, 10 parts, trioctyl phosphate, 4 parts; dioctyl adipate, 3 parts.

[0044] The preparation process is as follows: firstly add raw rubber in proportion to the open mill, mix at 60°C for 1.5 minutes, then thin pass 4 times, after mixing evenly, add amine salt modified composite flame retardant at 130°C, mix Refining for 3.5 minutes; then add modified white carbon black and ...

Embodiment 2

[0048] The components and mass parts of the light-colored rubber windshield material with low temperature resistance, high resilience and long life are: EPDM rubber 60 parts; EPDM rubber 40 parts; liquid ethylene propylene rubber , 10 parts; maleic anhydride modified polybutadiene, 6 parts; zinc oxide, 5 parts; stearic acid, 1 part; modified white carbon black, 30 parts; amine salt modified composite flame retardant, 42 parts ; trioctyl phosphate, 5 parts; dioctyl adipate, 4 parts; dicumyl peroxide, 1.2 parts; sulfur, 0.3 parts; Parts; triallyl isocyanurate, 0.9 parts; N, N, N-tetraisobutylthiuram sulfide, 0.75 parts; dicaprolactam disulfide, 0.5 parts, titanium dioxide, 10 parts.

[0049] The preparation process is as follows: firstly add raw rubber in proportion to the open mill, mix at 60°C for 1.5 minutes, and then thin pass 5 times, after mixing evenly, add amine salt modified composite flame retardant at 135°C, mix Refining for 2.5 minutes; then add modified white carbo...

Embodiment 3

[0053] The components and mass parts of the light-colored rubber windshield material with low temperature resistance, high resilience and long life are: 50 parts of EPDM; 50 parts of EPDM; liquid EPDM , 12 parts; maleic anhydride modified polybutadiene, 6 parts; zinc oxide, 5 parts; stearic acid, 1 part; modified white carbon black, 25 parts; amine salt modified composite flame retardant, 49 parts ; trioctyl phosphate, 5 parts; dioctyl adipate, 4 parts; dicumyl peroxide, 2.5 parts; sulfur, 0.4 parts; Parts; triallyl isocyanurate, 0.6 parts; N, N, N-sulfide tetraisobutylthiuram, 0.8 parts; dicaprolactam disulfide, 0.4 parts, titanium dioxide, 10 parts.

[0054] The preparation process is as follows: firstly add raw rubber in proportion to the open mill, mix at 60°C for 1.5 minutes, then thin pass 4 times, after mixing evenly, add amine salt modified composite flame retardant at 125°C, mix Refining for 3.5 minutes; then add modified white carbon black and continue mixing for 3 ...

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Abstract

The invention discloses a low-temperature-resistant high-resilience rubber windshield material, a preparation method thereof and a windshield. The windshield material is made of the following components in parts by weight: 40-75 parts of EPDM rubber; 25-60 parts of butyl rubber; 8-12 parts of liquid ethylene propylene rubber; 5-8 parts of maleic anhydride modified polybutadiene; 100 parts of the EPDM and the EPDM. The present invention aims to improve the low-temperature performance and flex resistance of EPDM, especially the resilience performance and flex crack growth resistance at low temperature, in terms of physical and mechanical properties, low-temperature performance, flex resistance, flame retardant performance, environmental protection performance, etc. The overall performance is excellent, which can meet the technical requirements of windshield products.

Description

technical field [0001] The invention belongs to the field of rubber materials, and in particular relates to a low-temperature-resistant high-resilience rubber windshield material, a preparation method thereof and a windshield. Background technique [0002] The windshield is a key component of the locomotive reconnection and the connection between vehicles, and it is the passage for the crew and passengers to pass safely. In addition to ensuring the safety of passengers, it should also have good longitudinal flexibility, lateral and vertical flexibility, so as to withstand and adapt to the misalignment and impact between vehicles during operation, and ensure that rolling stock can safely pass through curves and switches. In addition, it should also have certain sound insulation, heat insulation, dustproof and air tightness. Especially for windshields of high-speed trains, the combination of inner and outer windshields is usually used to further improve the control of aerodyn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L83/04C08K13/06C08K9/06C08K3/36C08K5/5313C08K5/3492
CPCC08L23/16C08L2205/035C08L2205/025C08L83/04C08K13/06C08K9/06C08K3/36C08K5/5313C08K5/34928
Inventor 谭莲影肖程远程志王雪飞杨瑞蒙穆洪帅肖同亮刘权
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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