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Micron-nano short-fiber rubber composite material for automobile driving belt and method for preparing same

A technology of short-fiber rubber and composite materials, which is applied in the direction of transmission belts, mechanical equipment, belts/chains/gears, etc., can solve the problems of short absolute length and low elongation at break, so as to improve oil resistance, improve processing technology, and improve The effect of heat resistance

Inactive Publication Date: 2011-02-16
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, since the dissociated acicular silicate is a short nanofiber with a short absolute length, if only the acicular silicate nanofiber-reinforced rubber is used to prepare a composite material, the elongation at break of the material is relatively low.

Method used

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  • Micron-nano short-fiber rubber composite material for automobile driving belt and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: micro-nano short-fiber rubber composite material for automobile transmission belt, the mass parts of each component are:

[0037] 100 parts of hydrogenated nitrile rubber matrix;

[0038] 10 parts of 1250 mesh acicular silicate;

[0039] 3 parts of γ-methacryloxypropyltrimethoxysilane;

[0040] 20 parts of micron aramid staple fiber;

[0041] 15 parts of magnesium methacrylate;

[0042] Antiaging agent: 0.5 parts of N-4 (anilinophenyl) maleimide (MC);

[0043] Cross-linking aid: 2 parts of basic zinc carbonate;

[0044] Crosslinking agent: 15 parts of brominated phenolic resin;

[0045] Preparation method: first add 100 parts of hydrogenated nitrile rubber base to masticate on a double-roll mill, then add 10 parts of 1250 mesh acicular silicate and 3 parts of γ-methacryloxypropyl trimethoxysilane At the same time, mechanically mix, under the action of mechanical shear for about 20 minutes until the natural acicular silicate is dissociated into nano-s...

Embodiment 2

[0046] Embodiment 2: micro-nano short-fiber rubber composite material for automobile transmission belt, the mass parts of each component are:

[0047] 100 parts of hydrogenated nitrile rubber matrix;

[0048] 80 parts of 1250 mesh acicular silicate;

[0049] 24 parts of γ-methacryloxypropyltrimethoxysilane;

[0050] 3 parts of micron aramid staple fiber;

[0051] 3 parts of magnesium methacrylate;

[0052] Antiaging agent: 3 parts of N-4 (anilinophenyl) maleimide (MC);

[0053] Cross-linking aid: 4 parts of basic zinc carbonate;

[0054] Crosslinking agent: 20 parts of brominated phenolic resin;

[0055] Preparation method: first add 100 parts of hydrogenated nitrile rubber base to masticate on a double-roll mill, then add 80 parts of 1250 mesh acicular silicate and 24 parts of γ-methacryloxypropyl trimethoxysilane At the same time, mechanically mix, under the action of mechanical shear for about 15 minutes until the natural acicular silicate is dissociated into nano-sho...

Embodiment 3

[0056] Embodiment 3: micro-nano short-fiber rubber composite material for automobile transmission belt, the mass parts of each component are:

[0057] 100 parts of EPDM matrix;

[0058] 32 parts of 1000 mesh acicular silicate;

[0059] 10 parts of vinyltrimethoxysilane;

[0060] Micron nylon-66 staple fiber 11.4 parts;

[0061] 6 parts of zinc methacrylate;

[0062] Antiaging agent: 3 parts of N-4 (anilinophenyl) methacrylamide;

[0063] Cross-linking aid: 1 part of triallyl isocyanurate (TAIC);

[0064] Crosslinking agent: 3 parts of dicumyl peroxide (DCP);

[0065] Preparation method: first add 100 parts of EPDM rubber matrix on a double-roller mill for mastication, then add 30 parts of 1000-mesh acicular silicate and 10 parts of vinyl trimethoxysilane and mix mechanically at the same time. Under the action for about 20 minutes until the natural acicular silicate is dissociated into nano-short fibers, then add 11.4 parts of micron nylon-66 short fibers and mix (the vol...

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Abstract

The invention discloses a micron-nano short-fiber rubber composite material for an automobile driving belt and a method for preparing the same. The method for preparing the micron-nano short-fiber rubber composite comprises the following steps: natural fibrillar silicate and silane coupling agent containing a double-bond functional group are added to a rubber matrix simultaneously and mechanicallymixed with the same; after the natural fibrillar silicate is decomposed into nano short-fiber and modified, nano short-fiber is added to the mixture and mixed with the same, and unsaturated carboxylic acid metal salt, anti-aging agent, cross-linking agent, co-crosslinking agent and other auxiliary agents are added in sequence and uniformly mixed; and the new mixture is sheared, orientated and finally sulfurized, thus the micron-nano short-fiber rubber composite material is prepared. The micron-nano short-fiber rubber composite material is used as the base rubber of the automobile driving beltincluding a poly V-belt, a V-belt, a synchronous belt, and the like, has excellent mechanical property (anisotropic property), machinability and heat resistance, improves the high-temperature resistance of the automobile driving belt and prolongs the service life of the same.

Description

Technical field: [0001] The invention relates to a micro-nano short-fiber rubber composite material for an automobile transmission belt and a preparation method thereof. Background technique: [0002] In the past, the rubber matrix of automobile transmission belts mainly used natural rubber (NR), styrene-butadiene rubber (SBR), and chloroprene rubber (CR) as the main materials. However, with the development of the automobile industry, the requirements for the heat resistance of automobile transmission belts are also getting higher and higher. At present, automobile synchronous belts and V-ribbed belts are generally used for a long time at -40-150°C. Traditional natural rubber, neoprene, etc. are obviously not suitable for the stringent requirements of the modern automobile industry on conveyor belts. In the choice of rubber matrix, people began to use hydrogenated nitrile rubber (HNBR) as the elastic main material of the transmission belt, which is used for high temperature...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L15/00C08L23/08C08K13/04C08K7/10C08K5/5415C08K5/098C08J5/04F16G1/06
Inventor 田明苏丽丽张立群
Owner BEIJING UNIV OF CHEM TECH
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