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A non-asbestos low-noise high-strength brake band and its preparation method
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A low-noise, asbestos-free technology, applied in the field of brake belts, can solve problems such as noise and environmental pollution, and achieve the effect of low pollution and good braking effect
Active Publication Date: 2017-11-24
JIANGSU AEROSPACE POWER ELECTRIC
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Summary
Abstract
Description
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Problems solved by technology
The brake belt prepared by this technology can basically meet the daily requirements, but because the main component of the filler is asbestos, it will cause noise and environmental pollution during use.
Method used
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Effect test
Embodiment 1
[0019] Embodiment 1: the preparation of brake band
[0022] The preparation method of modified nitrile rubber is as follows: firstly, 100 parts of nitrile rubber is masticated for 15 minutes, and when the temperature of the internal mixer reaches 85 ° C, 15 parts of barium dinonyl naphthalenesulfonate, 6 parts of isopropyl palmitate, 4 parts of 1 part of triethanolamine and 7 parts of simethicone were mixed for 4 minutes, then heated to 140°C, 1 part of accelerator DM and 2 parts of sulfur were added, and mixed for 4 minutes to obtain the modified nitrile rubber.
[0023] Preparation:
[0024] Put the raw materials into a mixer and mix them to make a pressed plasti...
Embodiment 2
[0025] Embodiment 2: the preparation of brake band
[0028] The preparation method of modified nitrile rubber is as follows: firstly, 100 parts of nitrile rubber is masticated for 15 minutes, and when the temperature of the internal mixer reaches 85 ° C, 15 parts of barium dinonyl naphthalenesulfonate, 6 parts of isopropyl palmitate, 4 parts of 1 part of triethanolamine and 7 parts of simethicone were mixed for 4 minutes, then heated to 140°C, 1 part of accelerator DM and 2 parts of sulfur were added, and mixed for 4 minutes to obtain the modified nitrile rubber.
[0029] Preparation:
[0030] Put the raw materials into a mixer and mix them to make a pressed pla...
Embodiment 3
[0031] Embodiment 3: the preparation of brake band
[0034] The preparation method of modified nitrile rubber is as follows: firstly, 100 parts of nitrile rubber is masticated for 15 minutes, and when the temperature of the internal mixer reaches 85 ° C, 15 parts of barium dinonyl naphthalenesulfonate, 6 parts of isopropyl palmitate, 4 parts of 1 part of triethanolamine and 7 parts of simethicone were mixed for 4 minutes, then heated to 140°C, 1 part of accelerator DM and 2 parts of sulfur were added, and mixed for 4 minutes to obtain the modified nitrile rubber.
[0035] Preparation:
[0036] Put the raw materials into a mixer and mix them to make a pressed pl...
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PUM
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Abstract
The invention discloses a non-asbestos low-noise high-strength brake strap and a preparation method of same. The brake strap is prepared from, by weight, 55-65 parts of modified nitrile butadiene rubber, 15-25 parts of carbon fibers, 2-4 parts of a rubber accelerator DTDM, 1.5-2.5 parts of a vulcanizing agent, 5-7 parts of zincoxide, 2-4 parts of magnesiumstearate, 1-3 parts of talcum powder, 1-3 parts of nano silicon dioxide and 2.5-3.5 parts of an anti-aging agent 264, wherein the modified nitrile butadiene rubber is prepared through the steps of: plasticating 90-110 parts of nitrile butadiene rubber for 10-20 min, and when the temperature in an internal mixer reaches 80-90 DEG C, adding 10-20 parts of barium dinonyl naphthalenesulfonate, 5-7 parts of isopropyl palmitate, 3-5 parts of triethanolamine and 6-8 parts of dimethyl silicon oil, performing mixing for 3-5 min, increasing the temperature to 130-150 DEG C, adding 0.5-1.5 parts of an accelerator DM and 1-3 parts of sulfur, and performing mixing for 3-5 min to obtain the modified nitrile butadiene rubber. The brake strap is free of asbestos, is harmless to human body and is low in pollution, has good brake effect, is high in strength and has no noise.
Description
technical field [0001] The invention relates to a brake band, in particular to an asbestos-free, low-noise, high-strength brake band and a preparation method thereof. Background technique [0002] At present, the raw materials for making brake belts (especially washing machine brake belts) include the following components: NBR, DM accelerator, zincoxide and stearic acid as active agents, sulfur as vulcanizing agent, asbestos composite material as filler, 4010 anti-aging agent . The processing flow is: batching-rubber mixing-rubber molding-vulcanization-grinding-inspection-packaging. The brake band prepared by this technology can basically meet the daily requirements, but because the main component of the filler is asbestos, it causes noise and environmental pollution during use. [0003] Carbon fiber is a new type of fiber material with high strength and high modulus fiber containing more than 95% carbon. It is a microcrystallinegraphite material obtained by stacking or...
Claims
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Application Information
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