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Potassium hexatitanate/sodium hexatitanate whisker composite ceramic frication material and preparation method thereof

The technology of sodium hexatitanate whisker and potassium hexatitanate whisker is applied in the field of composite ceramic friction material and its preparation, which can solve the problems of no potassium titanate/sodium titanate whisker composite friction material reported in literature and the like, Achieve the effect of being suitable for industrial production, solving hazards and environmental pollution, and improving product service life

Inactive Publication Date: 2008-05-28
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there are no literature reports on sodium titanate whisker friction materials and potassium titanate / sodium titanate whisker composite friction materials at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Potassium hexatitanate / sodium hexatitanate whisker composite ceramic friction material has the following components in parts by mass:

[0031] 10 parts of organic resin, 3 parts of rubber powder, 20 parts of potassium hexatitanate whisker and sodium hexatitanate whisker, 1 part of aramid fiber, 12 parts of graphite, 30 parts of filler.

[0032] Among the potassium hexatitanate whiskers and the sodium hexatitanate whiskers, the mass ratio of the potassium hexatitanate whiskers to the sodium hexatitanate whiskers is 4:1.

[0033] The filler is a mixture of iron oxide, mica powder, magnesium oxide, calcium carbonate and barium sulfate in a weight ratio of 1:1:2:2:8.

[0034] Preparation method, the steps are as follows:

[0035] 1. Weigh the aramid fiber, potassium hexatitanate whisker and sodium hexatitanate whisker in parts by mass, and mix them evenly to obtain a mixture of aramid fiber and whisker;

[0036] 2. Weigh the organic resin, rubber powder, graphite, filler,...

Embodiment 2

[0041] Potassium hexatitanate / sodium hexatitanate whisker composite ceramic friction material has the following components in parts by mass:

[0042] 12 parts of organic resin, 5 parts of rubber powder, 30 parts of potassium hexatitanate whisker and sodium hexatitanate whisker, 3 parts of aramid fiber, 15 parts of graphite, and 30 parts of filler. Among the potassium hexatitanate whiskers and the sodium hexatitanate whiskers, the mass ratio of the potassium hexatitanate whiskers to the sodium hexatitanate whiskers is 2:1. The filler is mica powder, magnesium oxide, iron oxide, calcium carbonate and barium sulfate in a weight ratio of 1:1:2:4:10.

[0043] Preparation method, the steps are as follows:

[0044] 1. Weigh the aramid fiber, potassium hexatitanate whisker and sodium hexatitanate whisker in parts by mass, and mix them evenly to obtain a mixture of aramid fiber and whisker;

[0045] 2. Weigh the organic resin, rubber powder, graphite, filler, and the mixture of arami...

Embodiment 3

[0050] Potassium hexatitanate / sodium hexatitanate whisker composite ceramic friction material has the following components in parts by mass:

[0051] 15 parts of organic resin, 8 parts of rubber powder, 40 parts of potassium hexatitanate whisker and sodium hexatitanate whisker, 4 parts of aramid fiber, 18 parts of graphite, 40 parts of filler. In the potassium hexatitanate whisker and the sodium hexatitanate whisker, the mass ratio of the potassium hexatitanate whisker to the sodium hexatitanate whisker is 1:1. The filler is magnesium oxide, calcium carbonate and barium sulfate in a weight ratio of 1:1:2.

[0052] The preparation method is the same as in Example 2.

[0053]The friction performance test results of the obtained friction material product are: the friction coefficient is stable between 0.42-0.48 from room temperature to 350°C, the wear rate is about 0.20, and there is no tremor or noise during the test.

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Abstract

The invention relates to a composite ceramic fiction material of potassium hexatitanate / sodium hexatitanate whisker belonging to the material technical field, wherein the composite ceramic fiction material comprises 5-20 parts of organic resin, 1-10 parts of rubber powder, 10-40 parts of potassium hexatitanate and sodium hexatitanate whisker, 0-5 parts of aramid fiber, 10-20 parts of graphite and 20-40 parts of filler. The composite ceramic fiction material of the invention doesn't contain asbestos without harming the human body and polluting the environment, which has superiorities in eliminating braking noise and heat degeneracy, improving using life of the product, overcoming adhesive occlusion among friction couples and the like.

Description

technical field [0001] The invention relates to a composite ceramic friction material in which potassium hexatitanate whiskers and sodium hexatitanate whiskers are used to replace asbestos and a preparation method thereof, belonging to the field of material technology. Background technique [0002] Asbestos has a serious carcinogenic effect on the human body, and remains in the natural environment for a long time without natural decomposition and disappearance. The used asbestos products cannot be recycled or recycled, which will bring long-term damage to the ecological environment, human health and sustainable development. , immeasurable harm. Therefore, it is an urgent task for the friction material industry to seek an environmentally friendly material to replace asbestos in traditional friction materials. [0003] Potassium titanate (mainly potassium hexatitanate) whiskers are generally considered as a good asbestos substitute material at home and abroad. Compared with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/14
Inventor 张玉军龚红宇谭砂砾张涛赵东亮王君王静
Owner SHANDONG UNIV
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