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Preparation method of modified carbon fiber reinforced nylon particle

A fiber-reinforced and modified carbon technology, applied in the field of polymer material science, can solve the problems of low fiber dispersion and damage, and achieve the effects of simple preparation process, uniform distribution, and excellent mechanical properties

Inactive Publication Date: 2020-08-25
苏州君彰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because, if the dispersion of fibers in the composite material is low, and if there are areas with many resins and areas with many fibers, when the molded article produced using the composite material is stressed, the stress will be concentrated on the uneven part and the possible damage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: Dissolve 10g of hyperbranched polyphenylene ether in 500ml of acetone, immerse 20g of carbon fiber T300 in the above solution, mix ultrasonically at 40°C for 5 hours, and remove the acetone by rotary evaporation to obtain modified carbon fiber;

[0028] Step 2, add 50 parts of nylon 66, 35 parts of modified carbon fiber obtained in step 1 and 15 parts of hyperbranched polyphenylene ether into the mixing equipment, raise the temperature to above 200°C to a molten state, and stir at high speed for 1.5 hours at this temperature; then mix 2 parts γ-glycidyl etheroxypropyltrimethoxysilane, 1 part of inorganic silicon flame retardant, 0.5 part of N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propane Acyl)hexamethylenediamine and 0.5 parts of polyethylene wax were added and then continued to stir and mix at high speed for 1h;

[0029] Step 3: Add the obtained mixed material into the twin-screw extruder, control the temperature in the conveying channel within 160°C to ...

Embodiment 2

[0031] Step 1. Dissolve 10g of hyperbranched polyglycidyl ether in 500ml of methanol, immerse 20g of carbon fiber T400 in the above solution, mix ultrasonically at 50°C for 5 hours, and remove methanol by rotary evaporation to obtain modified carbon fiber;

[0032] Step 2, add 60 parts of PA66 / 6, 30 parts of modified carbon fiber prepared in step 1 and 10 parts of hyperbranched polyglycidyl ether into the mixing equipment, raise the temperature to above 200°C to a molten state, and stir at a high speed for 2 hours at this temperature; then put 2 parts of γ-(methacryloyloxy)propyltrimethoxysilane, 1 part of inorganic silicon flame retardant, 2 parts of [β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] After adding pentaerythritol ester and 1 part of zinc stearate, continue to stir and mix at high speed for 1 hour;

[0033] Step 3: Add the obtained mixed material into the twin-screw extruder, control the temperature in the conveying channel within 160°C to 200°C, and extrude...

Embodiment 3

[0035] Step 1: Dissolve 10g of hyperbranched polyphenylene ether in 500ml of acetone, immerse 20g of carbon fiber T600 in the above solution, mix ultrasonically at 40°C for 5 hours, and remove the acetone by rotary evaporation to obtain modified carbon fiber;

[0036] Step 2, add 50 parts of PA610, 35 parts of modified carbon fiber prepared in step 1 and 20 parts of hyperbranched polyphenylene ether into the mixing equipment, raise the temperature to above 200°C to a molten state, stir at high speed for 2 hours at this temperature; then add γ-ammonia 0.5 part of propyltriethoxysilane, 1 part of inorganic silicon flame retardant, 0.5 part of N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexyl After adding diamine and 1 part of magnesium stearate, continue to stir and mix at high speed for 1 hour;

[0037] Step 3: Add the obtained mixed material into the twin-screw extruder, control the temperature in the conveying channel within 160°C to 200°C, and extrude the materi...

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PUM

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Abstract

The invention provides a preparation method of a modified carbon fiber reinforced nylon composite material. According to the method, nylon, a hyperbranched polymer, modified carbon fiber, a coupling agent, a flame retardant, an antioxidant and a lubricant are used as raw materials to nylon particles by a simple and convenient method. The composite material particles have high tensile strength, bending strength and impact resistance.

Description

technical field [0001] The invention relates to the field of polymer material science, in particular to a modified carbon fiber reinforced nylon particle and a preparation method thereof. Background technique [0002] With the increasingly mature application of carbon fiber reinforced thermosetting composite materials, carbon fiber reinforced thermoplastic composite materials are gradually moving from the aerospace field to industrial machinery, high-end medical treatment, rail transit, electronic appliances and other civilian fields. Compared with traditional thermosetting carbon fiber composite materials, thermoplastic composite materials such as nylon series have remarkable characteristics such as high toughness, high impact resistance and damage tolerance, unlimited prepreg storage period, short molding cycle, recyclable utilization, and easy repair. Environmental protection, high efficiency and high performance advantages. As the application of thermoplastic composite ...

Claims

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Application Information

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IPC IPC(8): C08J5/06C08L77/06C08L77/02C08L71/12C08L23/06C08L71/00C08L75/04C08K13/06C08K9/04C08K7/06C08K5/5435C08K5/5419C08K5/134C08K5/098C08K5/544
CPCC08J5/06C08J2377/02C08J2377/06C08J2423/06C08J2471/00C08J2471/12C08J2475/04C08K5/098C08K5/1345C08K5/5419C08K5/5435C08K5/544C08K7/06C08K9/08C08K13/06
Inventor 王日文孙庆沂王冲
Owner 苏州君彰新材料科技有限公司
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