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
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[0026] Example 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 5h, and remove 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, heat up to 200℃ or higher to a molten state, stir at this temperature for 1.5h at high speed; then mix 2 parts γ-glycidoxypropyltrimethoxysilane, 1 part of inorganic silicon flame retardant, 0.5 part of N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propane Acyl) hexamethylene diamine and 0.5 parts of polyethylene wax are added and continue to stir and mix at high speed for 1 hour;
[0029] Step 3. Add the obtained mixture to the twin-screw extruder, control the temperature in the conveying channel within 160℃~200℃, and extrude and granulate the ma...
Example Embodiment
[0030] Example 2
[0031] Step 1. Dissolve 10 g of hyperbranched polyglycidyl ether in 500 ml of methanol, immerse 20 g of carbon fiber T400 in the above solution, mix ultrasonically at 50°C for 5 hours, and remove the 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, heat up to 200℃ or higher to molten state, stir at this temperature for 2h at high speed; 2 parts γ-(methacryloyloxy)propyltrimethoxysilane, 1 part inorganic silicon flame retardant, 2 parts [β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] After adding pentaerythritol ester and 1 part of zinc stearate, continue to mix at high speed for 1 hour;
[0033] Step 3. Add the obtained mixture to the twin-screw extruder, control the temperature in the conveying channel within 160℃~200℃, and extrude and granulate the material according to the ...
Example Embodiment
[0034] Example 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 5h, and remove 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, heat up to 200°C or higher to a molten state, stir at this temperature for 2h at high speed; 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)hexane After adding diamine and 1 part of magnesium stearate, continue to mix at high speed for 1 hour;
[0037] Step 3. Add the obtained mixture to the twin-screw extruder, control the temperature in the conveying channel within 160℃~200℃, and extrude and granulate the material according to the...
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