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Preparation method for inorganic powder enhanced carbon cloth/resin composite material

A resin composite material and inorganic powder technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of complex process, less carbon cloth composite materials, high cost, etc., achieve simple preparation process, improve friction and wear performance, and produce low cost effect

Active Publication Date: 2016-01-13
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, chemical treatment has the disadvantages of high cost and complicated process, and most of the additives used in physical treatment are chemically pure, which also has the problem of high cost.
In addition, most of the above studies focus on the dry friction properties of carbon cloth composites, and there are few reports on carbon cloth composites that can be applied to wet friction environments.

Method used

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  • Preparation method for inorganic powder enhanced carbon cloth/resin composite material
  • Preparation method for inorganic powder enhanced carbon cloth/resin composite material
  • Preparation method for inorganic powder enhanced carbon cloth/resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1: Mix 0.3g of glass powder with a particle size of 100-200nm and 3g of cashew nut shell oil modified phenolic resin with a mass ratio of 1:10 to obtain mixture A, and then add mixture A to 100ml of anhydrous Dissolve it completely in ethanol to obtain solution B, wherein the concentration of glass powder in solution B is 3g / L; glass powder is soaked in silane coupling agent before use to make its surface rich in oxygen-containing functional groups;

[0035] Step 2: Soak the carbon cloth in acetone for 24 hours, then take it out, then ultrasonically clean it in ethanol for 45 minutes, and finally dry it for later use; the weaving density of the carbon cloth is 12K, and the weaving structure is plain weave;

[0036] Step 3: Use sand core funnel suction filtration device, use carbon cloth as filter paper, slowly pour solution B into the funnel for suction filtration, and take out the carbon cloth to dry and weigh after the solution is exhausted. Then use the dried ca...

Embodiment 2

[0045] Step 1: Mix 0.2g of ceramic powder with a particle size of 200-400nm and 4g of nitrile modified resin with a mass ratio of 1:20 through a ball mill to obtain mixture A, and then add mixture A to 120ml of absolute ethanol to make it Completely dissolve to obtain solution B, wherein the concentration of ceramic powder in solution B is 1.67g / L; the ceramic powder is soaked in silane coupling agent before use to make its surface rich in oxygen-containing functional groups;

[0046] Step 2: Soak the carbon cloth in acetone for 30 hours, take it out, then ultrasonically clean it in ethanol for 35 minutes, and finally dry it for later use; the weaving density of the carbon cloth is 6K, and the weaving structure is twill;

[0047] Step 3: Dip the carbon cloth into the solution B, then dry it, repeat the dipping and drying, and repeat until enough mixture A is added to the carbon cloth to obtain the preform C, wherein the preform C contains The mass fraction of mixture A is 21%;...

Embodiment 3

[0050] Step 1: Mix 0.3g of cement powder with a particle size of 5-10μm and 2g of rubber-modified resin at a mass ratio of 3:20 by manual stirring to obtain mixture A. The cement powder is soaked in silane coupling before use In the joint agent, the surface is rich in oxygen-containing functional groups;

[0051] Step 2: Soak the carbon cloth in acetone for 32 hours, then take it out, then ultrasonically clean it in ethanol for 40 minutes, and finally dry it for later use; the weaving density of the carbon cloth is 3K, and the weaving structure is satin weave;

[0052] Step 3: spread the mixture A on the surface of the carbon cloth, then add absolute ethanol to completely dissolve the mixture A, and then dry to obtain a preform C, wherein the mass fraction of the mixture A contained in the preform C is 23%;

[0053] Step 4: Put the prefabricated body C obtained in step 3 on a vulcanizer for hot-press curing, wherein the hot-pressing temperature is 165°C, the hot-pressing time ...

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Abstract

The invention relates to a preparation method for an inorganic powder enhanced carbon cloth / resin composite material. The preparation method comprises the steps of dissolving uniformly mixed inorganic powder with resin in anhydrous ethanol; uniformly dispersing the mixture of the inorganic powder and the resin in carbon cloth by methods of repeated suction filtration, drying and the like; and then carrying out hot press molding on the carbon cloth on a vulcanizing machine to obtain the inorganic powder enhanced carbon cloth / resin composite material with excellent mechanical and tribological properties. According to the preparation method provided by the invention, the inorganic powder as a raw material is added into the carbon cloth / resin composite material to prepare a carbon cloth wet type frictional material. Characteristics such as high hardness, wear resistance, and excellent thermal property of the inorganic powder are blended into the carbon cloth / resin composite material well; and meanwhile, the interface interaction and mechanical engagement among the components are further enhanced, so that the mechanical property and the frictional wear property of the carbon cloth frictional material are greatly improved.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a preparation method of an inorganic powder reinforced carbon cloth / resin composite material. Background technique [0002] Carbon cloth reinforced polymer matrix composites have been widely used in many fields such as thermal protection systems, lightweight structural parts, supercapacitors, and automotive materials. Due to their excellent tribological and thermal stability, they are also increasingly used as important friction engineering materials in industry [RattanR, BijweJ, FahimM.Wear.2007; 262(5-6):727- 35]. At present, many researchers have carried out a lot of research work on the selection of high molecular content in composite materials, the preparation of carbon cloth and the weaving method. However, due to the low specific surface area and poor wettability of carbon fibers, they are poorly bonded to polymers. In order to solve the problem of interfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L87/00C08L61/14C08L101/02C08L63/00C08K7/06C08K9/00C08K3/40C08K3/00C08K3/04B29C43/00C09K3/14
Inventor 黄剑锋李文斌费杰刘艳云曹丽云欧阳海波李翠艳孔新刚
Owner SHAANXI UNIV OF SCI & TECH
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