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Mixed natural fiber reinforced friction material and preparation method thereof

A technology of natural fibers and friction materials, applied in the field of friction materials, can solve the problems of braking vibration, abrasion of friction materials, and short service life.

Inactive Publication Date: 2018-03-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of uneven distribution of plant fibers in the friction material matrix, brake heat fading caused by high resin content in friction material components, single fiber cannot completely replace asbestos fiber and poor comprehensive mechanical properties, straight fiber Poor bonding with the matrix, poor mixing effect of mixed fibers, insufficient graphite substitutes and poor adhesion between graphite and resin-based friction material matrix, braking vibration during braking, noise pollution and dust pollution, etc., friction Due to the serious abrasion of the pair of materials, unstable friction coefficient, poor wear resistance, short service life, environmental pollution and waste of resources, a degradable loofah fiber mixed with northeast linden and walnut catalpa was proposed. The preparation method of special carbonized powder for friction materials, and the application of special carbonized powder for friction materials mixed with loofah fiber, rock wool fiber and basalt mineral fiber, northeast linden and walnut catalpa in friction materials

Method used

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  • Mixed natural fiber reinforced friction material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1. The content of each component of the mixed natural fiber reinforced friction material is as follows: the total weight of the three mixed natural fibers of loofah fiber, rock wool fiber and basalt mineral fiber is 12%, the total weight of the mixed carbonized powder of northeast linden tree and walnut catalpa 5.5% by weight, 2.5% fine rubber powder, 15% fine copper powder, 30% precipitated barium sulfate powder, 5% friction powder, 9% calcium hydroxide, 3% antimony sulfide, 15% high wear-resistant furnace black, white vermiculite Powder 3%, wherein, the content ratio of loofah fiber, rock wool fiber and basalt mineral fiber is 1:1:1, and the content ratio of Northeast Linden carbonized powder and walnut catalpa carbonized powder is 1.5:1.

[0049]2. The degradable loofah is prepared by the following steps: select mature loofah, soak it in clear water for 12 hours, then rinse it, and finally dry the loofah naturally for 56 hours. The water content of the loofah is 8%; ...

Embodiment 2

[0055] 1. The content of each component of the mixed natural fiber reinforced friction material is 45% of the total weight of the three mixed natural fibers of loofah fiber, rock wool fiber and basalt mineral fiber; 25% by weight, fine rubber powder 2.5%, fine copper powder 4.5%, precipitated barium sulfate powder 6.5%, friction powder 3%, calcium hydroxide 4%, antimony sulfide 3%, high wear-resistant furnace black 3.5%, white vermiculite 3% powder, wherein, the content ratio of loofah fiber, rock wool fiber and basalt mineral fiber is 2.5:2:1, and the content ratio of northeast linden carbonized powder and walnut catalpa carbonized powder is 3.5:1.

[0056] 2. The degradable loofah is prepared by the following steps: select mature loofah, soak it in clear water for 96 hours, then rinse it, and finally dry the loofah naturally for 120 hours. The water content of the loofah is 3.5%; the larger cross-sectional area of ​​the loofah and the uniform thickness are cut off, and at ro...

Embodiment 3

[0062] 1. The content of each component of the mixed natural fiber reinforced friction material by weight percentage is: the total weight of the three mixed natural fibers of loofah fiber, rock wool fiber and basalt mineral fiber, the total weight of the mixed carbonized powder of northeast lime tree and walnut 13% by weight, 4% fine rubber powder, 10% fine copper powder, 12% precipitated barium sulfate powder, 6% friction powder, 7% calcium hydroxide, 9% antimony sulfide, 12% high wear-resistant furnace black, white vermiculite 7% powder, wherein the content ratio of loofah fiber, rock wool fiber and basalt mineral fiber is 2:1.5:1, and the content ratio of northeast linden carbonized powder and walnut catalpa carbonized powder is 2.5:1.

[0063]2. The degradable loofah is prepared through the following steps, select mature loofah, soak it in clear water for 50 hours, then rinse it, and finally dry the loofah naturally for 80 hours. The water content of the loofah is 6.5%; th...

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Abstract

The invention discloses a mixed natural fiber reinforced friction material and a preparation method thereof and belongs to the technical field of friction materials. The mixed natural fiber reinforcedfriction material is composed of three mixed natural fibers, namely loofah sponge, rock wool and basalt minerals, mixed carbonized powder of northeast basswood and juglans mandshurica, fine rubber powder, fine copper powder, precipitated barium sulfate, friction powder, calcium hydroxide, antimony sulfide, high wear-resisting furnace black and white vermiculite powder, and the components are uniformly fed into B-shaped cavities and three-dimensional porous net-shaped structures of the loofah sponge. By the adoption of the material, physical mechanical properties and friction properties of thematerial are improved, the problem that natural fibers are not uniformly distributed in a friction material is solved, conventional graphite and rock wool fiber products can be replaced, heat fadingin the brake process is reduced, the problems of brake noise and brake vibration are reduced, waste resources can be sufficiently utilized, resource waste is reduced, noise, dust and environment pollution are reduced, and moreover, reasonable production cost and service lives are achieved.

Description

technical field [0001] The invention belongs to the technical field of friction materials, and in particular relates to a mixed natural fiber reinforced friction material and a preparation method thereof. Background technique [0002] Friction material is a key part of the brake or transmission of power machinery such as automobiles, high-speed rail, ships, electric bicycles and motorcycles, as well as oil drilling rigs, tractors, elevators, excavators, tanks and armored vehicles, and agricultural machinery. The stability, safety and reliability of equipment and various motor vehicles. Therefore, people have put forward more and more stringent requirements for the comprehensive performance of friction materials, especially the reliability and environmental protection of friction materials. For example, the reinforcing fibers of friction materials must be evenly distributed in the matrix of friction materials to ensure The comprehensive properties of friction materials; fric...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L21/00C08K13/04C08K7/10C08K3/04C08K3/08C08K3/30C08K3/22C08J5/04C08J5/14C09K3/14
CPCC09K3/14C08J5/048C08J2397/02C08K3/04C08K7/10C08K2003/3045C08K2003/085C08K2201/011
Inventor 马云海刘玉成端木令坚禹江涛吴思阳庄健佟金
Owner JILIN UNIV
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