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A kind of heat-conducting nylon composite material and preparation method thereof

A technology for nylon composite materials and raw materials, which is applied in the field of thermally conductive nylon composite materials and their preparation, can solve problems such as limited improvement of composite materials, and achieve the effects of improving mechanical properties and wear resistance, improving shrinkage rate and good thermal conductivity.

Active Publication Date: 2021-08-27
东莞市腾龙新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the nylon modified in the prior art, the modified material is simply mixed in the matrix, and the glass fiber is outside the nylon fiber, so that the improvement of the composite material is very limited, and its pressure resistance, wear resistance, and flame retardancy Still needs to be further improved

Method used

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  • A kind of heat-conducting nylon composite material and preparation method thereof
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  • A kind of heat-conducting nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Composition of raw materials (parts by weight): 1000 parts of caprolactam, 12 parts of light-burned magnesia, 10 parts of superfine talc powder, 30 parts of nano-alumina, 20 parts of attapulgite powder, 2 parts of sodium hydroxide, 12 parts of graphene, silica gel 5 parts of powder, 10 parts of boron nitride, 1 part of TDI activator, 3 parts of reinforcing agent, 1 part of lubricant and 2 parts of coupling agent.

[0026] The coupling agent is silane coupling agent KH-550.

[0027] The lubricant is a mixture of molybdenum disulfide, liquid paraffin and tetrafluoroethylene micropowder, and the mass ratio is 1:2:2.

[0028] The reinforcing agent is a mixture of carbon fiber, glass fiber and wollastonite, with a mass ratio of 1:1:2.

[0029] A method for preparing a thermally conductive nylon composite material is prepared according to the following method:

[0030] S1. Mix light-burned magnesia, superfine talc powder, nano-alumina, attapulgite powder, graphene, silica g...

Embodiment 2

[0033] Composition of raw materials (parts by weight): 2000 parts of caprolactam, 18 parts of light-burned magnesia, 15 parts of superfine talc powder, 40 parts of nano-alumina, 30 parts of attapulgite powder, 5 parts of sodium hydroxide, 17 parts of graphene, silica gel 12 parts of powder, 20 parts of boron nitride, 3 parts of TDI activator, 9 parts of reinforcing agent, 4 parts of lubricant and 5 parts of coupling agent.

[0034] The coupling agent is a mixture of silane coupling agents KH-560 and KH-570 with a mass ratio of 1:2.

[0035] The lubricant is a mixture of molybdenum disulfide, liquid paraffin and tetrafluoroethylene micropowder, and the mass ratio is 1:2:2.

[0036] The reinforcing agent is a mixture of carbon fiber, glass fiber and wollastonite, with a mass ratio of 1:1:2.

[0037] A method for preparing a thermally conductive nylon composite material is prepared according to the following method:

[0038] S1. Mix lightly burned magnesia, superfine talc powde...

Embodiment 3

[0041] Composition of raw materials (parts by weight): 1300 parts of caprolactam, 14 parts of light-burned magnesia, 12 parts of superfine talc powder, 32 parts of nano-alumina, 22 parts of attapulgite powder, 3 parts of sodium hydroxide, 14 parts of graphene, silica gel 7 parts of powder, 12 parts of boron nitride, 1 part of TDI activator, 4 parts of reinforcing agent, 2 parts of lubricant and 3 parts of coupling agent.

[0042] The coupling agent is a silane coupling agent Sj-42.

[0043] The lubricant is a mixture of molybdenum disulfide, liquid paraffin and tetrafluoroethylene micropowder, and the mass ratio is 1:2:2.

[0044] The reinforcing agent is a mixture of carbon fiber, glass fiber and wollastonite, with a mass ratio of 1:1:2.

[0045] A method for preparing a thermally conductive nylon composite material, which is prepared according to the following method:

[0046] S1. Mix lightly burned magnesia, superfine talc powder, nano-alumina, attapulgite powder, graphen...

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Abstract

The present invention proposes a heat-conducting nylon composite material, which is prepared from the following raw materials in parts by weight: 1000-2000 parts of caprolactam, 12-18 parts of light-burned magnesium oxide, 10-15 parts of ultrafine talcum powder, and 30-parts of nano-alumina 40 parts, 20-30 parts of attapulgite powder, 2-5 parts of sodium hydroxide, 12-17 parts of graphene, 5-12 parts of silica gel powder, 10-20 parts of boron nitride, 1-3 parts of TDI activator, 3-9 parts of strengthening agent, 1-4 parts of lubricant and 2-5 parts of coupling agent. The thermally conductive nylon composite material prepared by the invention has good thermal conductivity, mechanical properties and wear resistance, low shrinkage and water absorption, good heat resistance, low raw material cost, simple preparation method, and can meet certain requirements. The higher requirements for materials in the industrial field have opened up broad prospects for new nylon composite materials.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a heat-conducting nylon composite material and a preparation method thereof. Background technique [0002] Nylon is also called monomer cast nylon or cast nylon, and its performance is superior to that of ordinary nylon. It uses monomeric caprolactam as the main raw material, uses a strong base as a catalyst, vacuum dehydrates the molten caprolactam under normal pressure, adds sodium hydroxide, and then adds co-catalysts, mixes evenly, and immediately injects it into the Polymerization in a preheated mould. Modified nylon is to further improve its polymerization characteristics, increase its dimensional stability, strength and toughness, and improve the wear resistance of the product by adding fillers, chemical additives or heat treatment to the nylon active material. and weather resistance. [0003] However, in the nylon modified in the prior art, the modified mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L91/06C08L27/18C08K13/06C08K9/06C08K7/14C08K7/06C08K3/22C08K3/34C08K3/04C08K3/38C08K3/30C09K5/14
CPCC08K2003/222C08K2003/2227C08K2003/2241C08K2003/3009C08K2003/385C08L77/02C08L2201/08C09K5/14C08L91/06C08L27/18C08K13/06C08K9/06C08K7/14C08K7/06C08K3/346C08K3/22C08K3/34C08K3/042C08K3/38C08K3/30
Inventor 陈卫明
Owner 东莞市腾龙新材料有限公司
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