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Carbon fiber reinforced wear-resistant high-temperature nylon composite and preparation method thereof

A nylon composite material and carbon fiber technology, applied in the field of high temperature nylon materials, can solve the problems of long fiber length, complex process, reduction of material friction coefficient and wear, etc., and achieve the effect of low friction coefficient, excellent comprehensive performance and improved bonding force

Active Publication Date: 2017-12-08
株洲时代工程塑料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent prepared continuous long fiber reinforced high temperature resistant nylon composite material has mechanical properties, high temperature resistance and dimensional stability, but the fiber length of continuous long fiber reinforced high temperature resistant nylon composite material is large, which is not conducive to the reduction of friction coefficient and wear of the material. At the same time, the continuous long fiber reinforced high temperature resistant nylon composite material needs special requirements for molding equipment, and the process is complicated

Method used

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  • Carbon fiber reinforced wear-resistant high-temperature nylon composite and preparation method thereof
  • Carbon fiber reinforced wear-resistant high-temperature nylon composite and preparation method thereof

Examples

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Effect test

Embodiment 1

[0034] A carbon fiber-reinforced wear-resistant high-temperature nylon composite material, the components and contents of which are shown in Table 1 below, wherein the Mohs hardness of the soft filler is ≤2, the Mohs hardness of the hard filler is ≥5, and the carbon fiber is made of nitric acid liquid phase The PAN-based ground carbon fiber after the oxidation treatment, the single filament diameter of the PAN-based ground carbon fiber before the nitric acid liquid phase oxidation treatment is 7 μm, and the average fiber length is 100 μm.

[0035] The preparation method of the carbon fiber reinforced wear-resistant high-temperature nylon composite material is as follows:

[0036] (1) Put the soft filler and the hard filler in an electric blast drying oven, dry them at 100°C for 8 hours, and mix them evenly to obtain a mixed filler. Dissolve the coupling agent in isopropanol to prepare a coupling agent solution , and keep the mass of isopropanol 20 times the mass of the couplin...

Embodiment 2-4

[0041] A carbon fiber-reinforced wear-resistant high-temperature nylon composite material, compared with Example 1, differs in the content of its constituent components, and the specific differences are shown in Table 1 below. The preparation method of this embodiment is the same as that of Example 1.

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Abstract

A carbon fiber reinforced wear-resistant high-temperature nylon composite is prepared from components in parts by weight as follows: 35%-85% of high-temperature nylon resin, 5%-45% of carbon fiber, 5%-20% of a composite wear-resistant aid and 0.2%-0.6% of an antioxidant, wherein the composite wear-resistant aid is mixed filler modified with a coupling agent, and the mixed filler consists of soft filler with the Moh's hardness smaller than or equal to 2 and hard filler with the Moh's hardness larger than or equal to 5. The carbon fiber reinforced wear-resistant high-temperature nylon composite has mechanical performance, heat resistance and low friction coefficient during high bearing and has low wear loss and excellent comprehensive performance.

Description

technical field [0001] The invention belongs to the technical field of high-temperature nylon materials, and in particular relates to a nylon composite material and a preparation method thereof. Background technique [0002] High-temperature nylon resins generally refer to nylon engineering plastics whose long-term use temperature is above 150°C after modification. The main industrialized products include aliphatic nylon PA46 and semi-aromatic nylon PA4T, PA6T, PA9T and PA10T. High-temperature nylon resin has the advantages of good mechanical properties, wear resistance, heat resistance and chemical resistance. Semi-aromatic high-temperature nylon resin also overcomes the disadvantage of high water absorption of nylon resin. High-temperature nylon resin can be used for sliding parts such as gears, bearings, valves, structural components, fuel pipelines, etc. Under these conditions, its bearing capacity is not enough, its self-lubricating property is poor, and it wears a lot...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L77/06C08K13/06C08K9/02C08K7/06C08K3/34C08K3/30C08J5/06
CPCC08J5/06C08J2377/00C08J2377/06C08K3/30C08K3/34C08K7/06C08K9/02C08K13/06C08K2003/3009C08K2201/003C08K2201/004C08L2201/08C08L77/00C08L77/06
Inventor 陈智军张志军胡天辉曹凯凯邓凯恒姜其斌
Owner 株洲时代工程塑料科技有限责任公司
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