Preparation method of polyamide heat-conducting wear-proof composite

A composite material and wear-resistant technology, which is applied in the preparation of polyamide thermally conductive and wear-resistant composite materials and the preparation of polyamide-amine-based composite materials, can solve the problem of unsatisfactory material properties, less research on polyamide, and limited applications. problems, to achieve the effect of increasing heat distortion temperature, wide application, and improving interface properties

Active Publication Date: 2012-07-18
嘉兴高正新材料科技股份有限公司
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thermally conductive and wear-resistant composite materials have certain application prospects in electronic packaging and mechanical manufacturing, but most of the substrates are epoxy or polyvinyl fluoride, and there are few studies on

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1

[0027] In the first step, add 20 parts of silicon carbide, 2 parts of bisphenol A epoxy resin E-51, 2 parts of bisphenol A epoxy resin E-44, and 75 parts of acetone into the container, and stir for 1 hour under magnetic stirring. , The speed is 600 rpm, then add 0.8 part of diethylene triamine, 0.2 part of n-butyl glycidyl ether, continue to stir for 3 hours, then 60 ℃, 100 rpm conditions for 1 hour, the solvent volatilizes, you will get The powder was dried in a vacuum oven at 30°C for 12 hours to obtain epoxy-modified silicon carbide powder. In the second step, 20 parts of polyamide 12, 20 parts of amide 1212, 58 parts of modified silicon carbide, 0.5 parts of tris(2,4-di-tert-butylphenyl) phosphite, 1.5 parts of tetra[β-( 3,5-Di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester is melted and mixed in a two-roll mill. The temperature of the two rollers is 170°C, the distance between the rollers is 0.5mm, and the mixing of the materials between...

Example Embodiment

[0028] Example 2

[0029] In the first step, add 40 parts of aluminum nitride, 1 part of phenolic epoxy resin F-51, 2 parts of phenolic epoxy resin F-44, and 55 parts of methanol into the container, and stir for 2 hours under magnetic stirring at a speed of 500 rpm, then add 1 part of methylhexahydrophthalic anhydride and 1 part of 1,4-butanediol glycidyl ether, continue to stir for 4 hours, and then stir for 4 hours at 80°C and 200 rpm, the solvent will evaporate, The obtained powder was dried in a vacuum oven at 50° C. for 24 hours to obtain epoxy resin modified aluminum nitride powder. In the second step, 30 parts of polyamide 6, 35 parts of polyamide 66, 34 parts of modified aluminum nitride, 0.5 parts of 1,3,5-trimethyl-2,4,6-tris(3,5- Di-tert-butyl-4-hydroxybenzyl)benzene and 0.5 part of β-(4-hydroxyphenyl-3,5-di-tert-butyl) n-octadecyl propionate are melt-mixed in a twin-screw extruder To make pellets, the melting temperature of the screw is 270°C, the speed is 300 rpm,...

Example Embodiment

[0030] Example 3

[0031] In the first step, add 25 parts of magnesium oxide and aluminum oxide (the weight ratio between the two can be any ratio, 1:2 in this embodiment), 0.5 parts of bisphenol A epoxy resin E-51, 74 parts of Ethanol, stir under magnetic stirring for 1.5 hours at 500 rpm, then add 0.15 parts of m-phenylenediamine, 0.1 part of diaminodiphenylmethane, 0.25 parts of trimethylolpropane glycidyl ether, and continue to stir for 5 Then, it was stirred for 4 hours at 40°C and 150 revolutions per minute, and the solvent was volatilized. The obtained powder was dried in a vacuum oven at 40°C for 12 hours to obtain epoxy resin modified magnesium oxide powder. In the second step, 45 parts of polyamide 66, 20 parts of modified magnesium oxide, 30 parts of modified alumina, 2.5 parts of 2,6-di-tert-butyl-4-methylphenol and 2.5 parts of phosphite (2,4-Di-tert-butylphenyl) ester is melted and mixed in an internal mixer. The melting temperature of the internal mixer is 280℃, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thermal conductivityaaaaaaaaaa
Thermal conductivityaaaaaaaaaa
Thermal conductivityaaaaaaaaaa
Login to view more

Abstract

The invention relates to a preparation method of a polyamide heat-conducting wear-proof composite. The method comprises the following steps: modifying heat-conducting wear-proof filler by using epoxy resin; and melting and mixing 40-65 parts of polyamide, 1-5 parts of antioxidant and 34-58 parts of the epoxy-coated heat-conducting wear-proof filler by weight, and cooling to obtain the polyamide heat-conducting wear-proof composite. According to the method, epoxy resin is used to coat the heat-conducting wear-proof filler and react with polyamide, thus the boundary problem of the inorganic filler and polyamide can be solved. As the selected inorganic filler has high heat conductivity and good insulativity and wear resistance, the final composite has insulating heat-conducting wear-proof property and can be used in fields such as heat exchangers, electronic packaging and mechanical manufacturing.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a preparation method of a polyamide-amine-based composite material, in particular to a preparation method of a polyamide heat-conducting and wear-resistant composite material. Background technique [0002] Polyamide (PA) has good comprehensive properties, including excellent mechanical properties, heat resistance, chemical resistance and self-lubrication, so it is used in automobiles, electrical equipment, mechanical parts, transportation equipment, textiles, paper machinery, etc. be widely used. However, the disadvantages of PA, such as low thermal conductivity, poor wear resistance, strong water absorption, and poor creep resistance, limit its wider application. [0003] In order to improve the deficiencies in the performance of PA, we use inorganic fillers to modify it. In addition to reducing costs, inorganic fillers can also increase or improve the properties of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L77/00C08L77/02C08L77/06C09K5/14C08K13/06C08K9/10C08K3/34C08K3/28C08K3/22
Inventor 胡新利戚嵘嵘陆佳琦罗宇
Owner 嘉兴高正新材料科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap