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Low-temperature resistant high-resilience rubber windshield material, preparation method thereof 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 material, which can solve the problems that the windshield capsule cannot return to its original shape in time, poor flexibility, and low self-strength, so as to improve the ozone resistance. Crack performance, improvement of low temperature performance and fatigue performance, and reduction of adverse effects

Active Publication Date: 2019-12-03
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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  • Low-temperature resistant high-resilience rubber windshield material, preparation method thereof and windshield
  • Low-temperature resistant high-resilience rubber windshield material, preparation method thereof and windshield

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The components and mass parts of the low-temperature, high-resilience and long-life flame-retardant and environmentally friendly light-colored rubber windshield material in this embodiment are: EPDM, 75 parts; EPDM, 25 parts; Liquid B Propylene rubber, 8 parts; maleic anhydride modified polybutadiene (commercially available), 8 parts; zinc oxide, 5 parts; stearic acid, 1 part; modified silica, 20 parts; amine salt modified compound 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: first add raw rubber in an open mill, mix for 1.5 minutes at 60°C, then pass 4 times, mix well, add amine salt modified composite flame retardant at 130°C, mix Mix for 3.5 minutes; then add modified white carbon black an...

Embodiment 2

[0048] The components and mass parts of the low-temperature, high-resilience and long-life flame-retardant and environmentally friendly light-colored rubber windshield material of this embodiment are: EPDM 60; EPDM 40; 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; N,N'-m-phenylene polymaleimide, 0.6 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: first add raw rubber in an open mill, mix for 1.5 minutes at 60°C, then pass 5 times, mix well, add amine salt modified composite flame retardant at 135°C, mix Mix for 2.5 minutes; then add modified ...

Embodiment 3

[0053] The components and mass parts of the low-temperature resistant, high-resilience and long-life flame-retardant and environmentally friendly light-colored rubber windshield material in this embodiment are: EPDM 50; EPDM 50; liquid ethylene propylene rubber , 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; N,N'-m-phenylene polymaleimide, 0.6 Parts; triallyl isocyanurate, 0.6 parts; N,N,N-tetraisobutylthiuram sulfide, 0.8 parts; dicaprolactam disulfide, 0.4 parts, titanium dioxide, 10 parts.

[0054] The preparation process is: first add raw rubber in an open mill, mix for 1.5 minutes at 60°C, then pass 4 times, mix well, add amine salt modified composite flame retardant at 125°C, mix Mix for 3.5 minutes; then add modified si...

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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 prepared from the following components in parts by weight: 40-75 parts of ethylene propylene diene monomer rubber, 25-60 parts of ethylene butene diene monomer rubber, 8-12 parts of liquid ethylene propylene rubber and 5-8 parts of maleic anhydride modified polybutadiene, wherein the total weight parts of the ethylene propylene diene monomer rubber and the ethylene butene diene monomer rubber are 100 parts. The invention aimsto improve low-temperature performance and flex resistance performance of ethylene propylene diene monomer (EPDM), particularly resilience and flex crack growth resistance at low temperature. The windshield material has excellent comprehensive performance in the aspects of physical mechanical performance, low-temperature performance, flex resistance, flame retardant performance, environmental protection performance and the like, and can meet technical requirements of windshield products.

Description

Technical field [0001] The invention belongs to the field of rubber materials, and particularly relates to a low-temperature resistant and high-resilience rubber windshield material, a preparation method thereof, and a windshield. Background technique [0002] The windshield is a key component for the reconnection of locomotives and the connection between vehicles and vehicles, and is a safe passage for flight attendants and passengers. In addition to ensuring the safety of passengers, it should also have good longitudinal flexibility, horizontal and vertical flexibility, to withstand and adapt to the misalignment and impact between vehicles in operation, and to ensure the safe passage of locomotives and vehicles through curves and turnouts. In addition, it should have certain sound insulation, heat insulation, dustproof and air tightness. Especially for high-speed train windshields, a combination of inner and outer windshields is usually used to further improve the control of a...

Claims

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Application Information

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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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