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Polycarbonate added engineering plastic preparation method and application thereof

A technology of polycarbonate and engineering plastics, which is applied in the field of preparing engineering plastics added with polycarbonate, and achieves the effects of improving performance and heat resistance.

Inactive Publication Date: 2018-12-21
SUZHOU LUOTELAN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, special engineering plastics used in the field of electrical engineering need to have high heat resistance, and ordinary engineering plastics often cannot meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Add 20 parts of polypropylene adipate, 18 parts of polycarbonate, 15 parts of ethylene-ethyl acetate copolymer, 3 parts of calcium oxide, and 2 parts of methyl tin mercaptide into the high-speed mixer, and then add The concentration of mass is 75% ethanol solution, stirs and mixes according to the speed of 500 revs / min, and stirring time is 35 minutes, obtains preliminary mixture;

[0021] (2) Add 55 parts of polystyrene and 40 parts of polyethylene oxide into tetrahydrofuran, and obtain a dispersion liquid of polystyrene and polyethylene oxide after ultrasonic dispersion treatment. The power of ultrasonic dispersion is 450W, and the ultrasonic dispersion The time is 55 minutes, and then put the preliminary mixture obtained in step (1) into the dispersion liquid of polystyrene and polyethylene oxide, and add 1 part of tris(2,4-di-tert-butylphenol) phosphite , let stand for 80 minutes, then centrifuge the mixed solution, collect the sediment, wash and dry it, and obt...

Embodiment 2

[0027] (1) Add 25 parts of polypropylene adipate, 20 parts of polycarbonate, 20 parts of ethylene-ethyl acetate copolymer, 4 parts of calcium oxide, and 3 parts of methyl tin mercaptide into the high-speed mixer, and then add The concentration of mass is 75% ethanol solution, stirs and mixes according to the speed of 550 revs / min, and stirring time is 40 minutes, obtains preliminary mixture;

[0028] (2) Add 60 parts of polystyrene and 45 parts of polyethylene oxide into tetrahydrofuran, and obtain a dispersion liquid of polystyrene and polyethylene oxide after ultrasonic dispersion treatment. The power of ultrasonic dispersion is 450W, and the ultrasonic dispersion The time is 65 minutes, then put the preliminary mixture obtained in step (1) into the dispersion liquid of polystyrene and polyethylene oxide, add 2 parts of dihydroquinoline, let it stand for 100 minutes, and then put the mixed liquid Centrifuge, collect the precipitate, wash and dry it, and obtain the modified m...

Embodiment 3

[0034] (1) Add 30 parts of polypropylene adipate, 22 parts of polycarbonate, 25 parts of ethylene-ethyl acetate copolymer, 5 parts of calcium oxide, and 4 parts of methyl tin mercaptide into the high-speed mixer, and then add The concentration of mass is 75% ethanol solution, stirs and mixes according to the speed of 600 revs / min, and stirring time is 45 minutes, obtains preliminary mixture;

[0035] (2) Add 65 parts of polystyrene and 50 parts of polyethylene oxide into tetrahydrofuran, and obtain a dispersion liquid of polystyrene and polyethylene oxide after ultrasonic dispersion treatment. The power of ultrasonic dispersion is 450W, and the ultrasonic dispersion The time is 75 minutes, and then put the preliminary mixture obtained in step (1) into the dispersion liquid of polystyrene and polyethylene oxide, add 3 parts of phenylene diisodecyl phosphite, let it stand for 120 minutes, and then Centrifuge the mixed solution, collect the precipitate, wash and dry it with water...

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PUM

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Abstract

The invention discloses a polycarbonate added engineering plastic preparation method and application thereof. The method comprises the steps: mixing polypropylene glycol adipate, polycarbonate, ethylene-ethyl acetate copolymer, calcium oxide, methyltin mercaptide and an ethanol solution to obtain a primary mixture, then adding into polystyrene and polyethylene oxide dispersion liquid, adding an antioxidant, performing standing treatment, collecting precipitate, washing and drying to obtain a modified mixture, then mixing with decabromodiphenyl ethane to perform warming and stirring reaction toobtain a middle mixture, then performing secondary modification to obtain a secondary modified mixture, then reacting with ethylene-propylene-diene monomer and deionized water in a high-pressure reaction kettle under the helium environment to obtain a high-temperature reaction material and finally smelting and extruding to obtain finished-product engineering plastic. The heat resistance strengthof the prepared engineering plastic is obviously improved, and the prepared engineering plastic has a good application prospect in the field of electric engineering.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a preparation method of engineering plastics added with polycarbonate and its application. Background technique [0002] Engineering plastics refer to industrial plastics used as industrial parts or shell materials, with high strength, high mechanical modulus, low creep, strong wear resistance and fatigue resistance, as well as chemical resistance, electrical resistance, flame resistance High performance, weather resistance, good dimensional stability and other advantages. Engineering plastics are widely used in electrical and electronic, construction, automobile, office equipment, machinery, aerospace and other industries. Among them, special engineering plastics used in the field of electrical engineering need to have high heat resistance, and ordinary engineering plastics often cannot meet the requirements. Polycarbonate (referred to as PC) is a high molecular polymer ...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L71/02C08L67/02C08L69/00C08L23/08C08L23/16C08K13/02C08K3/22C08K5/58C08K5/3492
CPCC08K2003/2206C08L25/06C08L2205/035C08L71/02C08L67/02C08L69/00C08L23/0853C08L23/16C08K13/02C08K3/22C08K5/58C08K5/34922
Inventor 马志明
Owner SUZHOU LUOTELAN NEW MATERIAL TECH
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