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Poly-p-phenylene terephthamide composite fiber dry clutch facing and preparation method thereof

A poly-p-phenylene terephthalamide, dry clutch technology, applied in chemical instruments and methods, friction linings, mechanical equipment, etc., can solve the problem that the performance of the clutch face cannot meet the actual requirements, the production cost is high, and the Unfavorable promotion and other problems, to achieve the effect of saving raw materials, low production costs, and controlling production costs

Active Publication Date: 2015-12-02
杭州科瑞特摩擦材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the weak point of this invention is that the cost is higher
And along with the progress of society, people are also more and more higher to the performance requirement of clutch facing, the various performances of this invention clutch facing can no longer meet actual requirements
[0005] Although some clutch faces in the prior art can reach very high standards in performance, the production cost is high, which is not conducive to popularization

Method used

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  • Poly-p-phenylene terephthamide composite fiber dry clutch facing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The poly-p-phenylene terephthalamide composite fiber dry clutch face is prepared from the following materials in parts by weight:

[0048] 45 composite fibers.

[0049] 15 parts of styrene-butadiene rubber, 15 parts of phenolic resin.

[0050] 1.5 parts of accelerator H, 0.5 parts of accelerator DM, 1.0 part of antioxidant TMQ, 3.5 parts of sulfur, 1 part of zinc oxide, and 0.5 parts of zinc stearate.

[0051] 2 parts calcium sulfate whisker, 2 parts ceramic fiber, 2 parts graphite, 1 part carbon black, 1 part friction powder, 1 part copper sulfide, 1 part molybdenum disulfide.

[0052] 2 parts barium sulfate, 2 parts wollastonite, 2 parts calcium carbonate, 2 parts diatomaceous earth, 2 parts mica.

[0053] Among them: poly-p-phenylene terephthalamide fiber accounts for 30wt% of composite fiber, glass fiber accounts for 25wt% of composite fiber, copper fiber accounts for 30wt% of composite fiber, acrylic fiber accounts for 10wt% of composite fiber, carbon fiber account...

Embodiment 2

[0065] The poly-p-phenylene terephthalamide composite fiber dry clutch face is prepared from the following materials in parts by weight:

[0066] 35 parts composite fiber.

[0067] 12 parts of nitrile rubber, 10 parts of phenolic resin.

[0068] 0.5 parts of accelerator CZ, 1 part of antioxidant TMQ, 2.5 parts of sulfur, 0.5 parts of zinc stearate. .

[0069] 4 parts of ceramic fiber, 4 parts of calcium sulfate whiskers, 2 parts of graphite, 0.5 parts of zinc oxide, 1 part of magnesium oxide, 2 parts of copper sulfide, 2 parts of molybdenum disulfide, 2 parts of iron oxide.

[0070] 4 parts of barium sulfate, 4 parts of mica, 2 parts of calcium carbonate, 2 parts of wollastonite, 4 parts of halloysite nanotubes.

[0071] Wherein: poly-p-phenylene terephthalamide fibers account for 20 wt% of the composite fibers, glass fibers account for 25 wt% of the composite fibers, copper fibers account for 30 wt% of the composite fibers, and acrylic fibers account for 25 wt% of the comp...

Embodiment 3

[0087] The poly-p-phenylene terephthalamide composite fiber dry clutch face is prepared from the following materials in parts by weight:

[0088] 40 parts composite fiber.

[0089] 12 parts of styrene-butadiene rubber, 20 parts of phenolic resin.

[0090] 1 part of accelerator H, 0.3 part of accelerator DM, 0.7 part of anti-aging agent TMQ, 2.5 parts of sulfur.

[0091] 1 part calcium sulfate whisker, 1 part ceramic fiber. 2 parts of graphite, 1 part of friction powder, 1.5 parts of zinc oxide, 0.5 parts of magnesium oxide, 0.5 parts of copper sulfide, 0.5 parts of antimony sulfide, and 1 part of carbon black.

[0092] 4 parts of barium sulfate, 2 parts of wollastonite, 2 parts of mica, 2 parts of calcium carbonate, 2 parts of diatomaceous earth, 2 parts of feldspar powder, and 2 parts of halloysite nanotubes.

[0093] Among them: poly-p-phenylene terephthalamide fiber accounts for 10wt% of composite fiber, glass fiber accounts for 10wt% of composite fiber, copper fiber acc...

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Abstract

The invention relates to the field of friction materials in automobile transmission structures, and discloses a poly-p-phenylene terephthamide composite fiber dry clutch facing which is prepared from the following substances: 30-70 parts of composite fibers, 15-40 parts of adhesive, 2-10 parts of rubber compound ingredients, 5-20 parts of a friction performance modifying agent, and 5-20 parts of fillers. The invention further discloses a preparation method of the poly-p-phenylene terephthamide composite fiber dry clutch facing. The preparation method comprises the following steps of (1) fiber compounding; (2) steeping and drying; (3) friction coil preparing; (4) hot press molding; (5) vulcanization heat treatment; (6) coarse grinding machining; (7) spot facing; (8) fine grinding machining; and (9) printing and marking, and packing. The poly-p-phenylene terephthamide composite fiber dry clutch facing prepared according to the preparation method has higher rotating burst strength, higher bending strength, a maximum strain value and excellent friction and wear performance and high temperature resistance. The preparation method of the poly-p-phenylene terephthamide composite fiber dry clutch facing is low in production cost, and can save 3-8 percent of raw materials effectively.

Description

technical field [0001] The invention relates to the field of friction materials in automobile transmission structures, in particular to a poly(p-phenylene terephthalamide) composite fiber dry clutch face and a preparation method thereof. Background technique [0002] The clutch is a key component in the car transmission system. The function of the clutch is to transmit power through friction, to ensure the smooth start of the car, to achieve smooth shifting, and to prevent the drive train from overloading. The clutch face is a functional element that directly generates frictional torque on the clutch, so the clutch face needs to have strong mechanical properties, heat resistance and stable friction performance. [0003] The Chinese invention patent with the application number 03150833.2 discloses an aramid fiber non-asbestos clutch face, which is made of a composite material including a skeleton material, an adhesive, a friction modifier, and a mineral filler. The aramid com...

Claims

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Application Information

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IPC IPC(8): F16D69/02C09K3/14
Inventor 洪建聪陈军虎麻燕平朱伟
Owner 杭州科瑞特摩擦材料有限公司
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