Continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material and preparation thereof

A heat-conducting composite material, polypropylene technology, applied in heat-conducting composite materials and its preparation, continuous carbon fiber reinforced polypropylene high-performance conductive field, can solve problems such as limited applications, achieve excellent mechanical properties, broad market prospects, and improve flow performance Effect

Inactive Publication Date: 2017-06-23
浙江胜钢新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, although the strength of polypropylene is higher than that of polyethylene, and the tensile strength can reach more than 30MPa, it still limits its application in the field of high performance requirements.

Method used

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  • Continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material and preparation thereof

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Effect test

specific Embodiment 1

[0030] A continuous carbon fiber reinforced polypropylene high-performance conductive and thermally conductive composite material. According to the weight of the material, the formula includes: homopolypropylene resin 100 kg, melt index 40g / 10min; antioxidant 1010 0.1kg; hyperbranched polymer Hyper C100T 0.2kg, ethylene-octene copolymer POE 2kg, PP grafted glycidyl methacrylate PP-g-GMA 1kg.

[0031] A method for preparing a continuous carbon fiber reinforced polypropylene high-performance conductive and thermally conductive composite material, comprising the following steps: after premixing the above components according to a certain proportion, melt mixing and extruding them into a "hanger" type die through a single screw unit Divide the flow, and finally enter the "S" type die to fully impregnate the carbon fiber, and the strands are cooled and granulated by cooling water to produce long carbon fiber reinforced thermoplastic particles LCFRT, with a carbon fiber content of 20...

specific Embodiment 2

[0034] A continuous carbon fiber reinforced polypropylene high-performance conductive and thermally conductive composite material. According to the weight of the material, the formula includes: homopolypropylene resin 100 kg, melt index 60g / 10min; antioxidant 1010 0.2kg, antioxidant 168 0.2kg , antioxidant DSTP0.6kg; hyperbranched polymer Hyper C100T 2 kg, ethylene vinyl acetate EVA 5kg, PP grafted maleic anhydride PP-g-MAH 3kg.

[0035] A method for preparing a continuous carbon fiber reinforced polypropylene high-performance conductive and thermally conductive composite material, comprising the following steps: after premixing the above components according to a certain proportion, melt mixing and extruding them into a "hanger" type die through a single screw unit Divide the flow, and finally enter the "S" type die to fully impregnate the carbon fiber, and the strands are cooled and granulated by cooling water to produce long carbon fiber reinforced thermoplastic particles LC...

specific Embodiment 3

[0038]A continuous carbon fiber reinforced polypropylene high-performance conductive and thermally conductive composite material. The formula includes: 70 kg of homopolymerized PP resin, 100 g / 10 min of melt index, 30 kg of copolymerized PP resin, 60 g / 10 min of melt index; Agent 1010 0.4kg, antioxidant 168 0.1kg, antioxidant PAT218 0.2kg; hyperbranched polymer CYD-2136PE 1.2 kg, ethylene-octene copolymer POE 6kg, PP grafted maleic anhydride PP-g-MAH 5kg .

[0039] A method for preparing a continuous carbon fiber reinforced polypropylene high-performance conductive and thermally conductive composite material, comprising the following steps: after premixing the above components according to a certain ratio, melt and mix them through a twin-screw unit and extrude them into a "hanger" type die Divide the flow, and finally enter the "S" type die to fully impregnate the carbon fiber, and the strands are cooled and granulated by cooling water to produce long carbon fiber reinforced ...

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Abstract

The invention relates to a continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material and a preparation thereof. The continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material comprises the components in parts by weight: (1) 100 parts of polypropylene, (2) 0.1-1 parts of an antioxidant, (3) 0.2-2 parts of a flow promoter, and (5) 1-5 parts of a compatilizer; after being premixed according to a certain proportion, the components are melted, mixed and extruded into a hanger-shaped mold head by a double/single-screw machine unit to be shunted; finally, the components enter an S-shaped mold head to sufficiently soak carbon fibers so as to prepare the continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material. Compared with the traditional carbon fiber reinforced PP composite material, the continuous carbon fiber reinforced polypropylene high-performance electricity-conductive and heat-conductive composite material provided by the invention has the advantages that the mechanical property of the continuous carbon fiber reinforced composite material prepared by using a special soaking process is greatly improved because the length retention rate of carbon fibers in a PP carrier is very high or the carbon fibers are continuous in the PP carrier; on the basis of a continuous network structure, the electricity-conductive and heat-conductive performances of the continuous carbon fiber reinforced composite material are also greatly improved.

Description

technical field [0001] The invention relates to a continuous carbon fiber reinforced polypropylene high performance conductive and thermal conductive composite material and its preparation. Background technique [0002] Polypropylene (PP for short) is a kind of thermoplastic resin prepared by polymerizing propylene, including copolymers of propylene and a small amount of ethylene. It is usually a translucent, colorless solid, odorless and non-toxic; due to its regular structure and Highly crystallized, so the melting point can be as high as 167°C. It has low density and is the lightest general-purpose plastic; it is particularly stable to water, and its water absorption rate in water is only about 0.01%; it is heat-resistant and corrosion-resistant, and its products can be sterilized by steam. Its strength, stiffness, hardness and heat resistance are superior to those of low-pressure polyethylene, and it can be used at around 100°C. It has good dielectric properties and hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L87/00C08L23/08C08L51/06C08K5/134C08K5/526C08K5/372C08K13/04C08K7/06
CPCC08L23/12C08K2201/001C08L23/14C08L2205/02C08L2205/025C08L2205/035C08L2205/08C08L87/00C08L23/0815C08L51/06C08K5/1345C08K7/06C08L23/0853C08K13/04C08K5/526C08K5/372
Inventor 张思灯阮晨琪阮金刚
Owner 浙江胜钢新材料有限公司
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