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Flame-retardant polycarbonate material with high surface hardness and gloss and preparation method

A flame retardant polycarbonate and polycarbonate technology, applied in the field of polycarbonate, can solve the problems of no flame retardant properties and cannot be used as high-gloss flame retardant plastic parts, achieve excellent mechanical properties, improve gloss, improve The effect of surface hardness

Inactive Publication Date: 2011-12-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the resulting product does not have flame-retardant properties and cannot be used as high-gloss flame-retardant plastic parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] After fully drying the raw materials, take by weighing 780 grams of resin, 150 grams of resorcinol condensation polyaryl phosphate, 30 grams of styrene-acrylonitrile copolymer (the mass percentage of acrylonitrile in the copolymer is 20%, and the melt index is 4g / 10min), 30 grams of ethylene-methyl acrylate copolymer, 5 grams of polytetrafluoroethylene (number-average molecular weight is 4,000,000g / mol), 5 grams of antioxidant (tetra(beta-(3,5-di-tert-butyl -4-hydroxyphenyl) propionate) pentaerythritol ester and tris (2,4-di-tert-butylphenyl) phosphite molar ratio 1: 2), wherein 780 grams of resin are made of 624 grams of polycarbonate (molecular weight is 80000g / mol) and 156 grams of polymethylmethacrylate (molecular weight: 500,000g / mol); mix the above components evenly, and then extrude, draw, and manufacture the resulting mixture in a twin-screw extruder at 260°C. pellets and injection molded into samples.

[0024] Performance Testing:

[0025] The gloss of the s...

Embodiment 2

[0027] After fully drying the raw materials, take by weighing 854 grams of resin, 80 grams of resorcinol polycondensed aryl phosphate, 30 grams of styrene-acrylonitrile copolymer (the mass percentage of acrylonitrile in the copolymer is 20%, and the melt index is 5g / 10min), 30 grams of ethylene-methyl acrylate copolymer, 3 grams of polytetrafluoroethylene (number average molecular weight is 4000000g / mol), 3 grams of antioxidant (tetra(beta-(3,5-di-tert-butyl -4-hydroxyphenyl) propionate) pentaerythritol ester and tris (2,4-di-tert-butylphenyl) phosphite molar ratio 1: 2), wherein 854 gram resins are made of 683.2 gram polycarbonate (molecular weight is 100000g / mol), 170.8 grams of polymethyl methacrylate (molecular weight is 800000g / mol); the above components are mixed evenly, and then the resulting mixture is extruded, drawn, and manufactured in a twin-screw extruder at 270 ° C. pellets and injection molded into samples.

[0028] Performance Testing:

[0029] The gloss of ...

Embodiment 3

[0031]After fully drying the raw material, take by weighing 800 grams of resin, 132 grams of resorcinol polycondensed aryl phosphate, 30 grams of styrene-acrylonitrile copolymer (the mass percent of acrylonitrile in the copolymer is 20%, and the melt index is 6g / 10min), 30 grams of ethylene-methyl acrylate copolymer, 4 grams of polytetrafluoroethylene (number average molecular weight is 4000000g / mol), 4 grams of antioxidant (tetra(beta-(3,5-di-tert-butyl -4-hydroxyphenyl) propionate) pentaerythritol ester and tris (2,4-di-tert-butylphenyl) phosphite molar ratio 1: 2), wherein 800 grams of resin are made of 640 grams of polycarbonate (molecular weight is 90000g / mol), 160 grams of polymethyl methacrylate (molecular weight is 650000g / mol); the above components are mixed evenly, and then the resulting mixture is extruded, drawn, and manufactured in a twin-screw extruder at 250 ° C. pellets and injection molded into samples.

[0032] Performance Testing:

[0033] The gloss of th...

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Abstract

The invention discloses a flame-retardant polycarbonate material with high surface hardness and gloss and a preparation method thereof. The flame-retardant polycarbonate with high surface hardness and gloss consists of 78-85.4 parts of resin, 8-15 parts of flame retardant, 6 parts of compatibilizer, 0.3-0.5 parts of anti-dripping agent and 0.3-0.5 parts of antioxidant. The preparation method is to mix the components evenly, and then carry out extrusion, traction and granulation at 250°C to 270°C to prepare flame-retardant polycarbonate with high surface hardness and gloss. Under the action of the compatibilizer, polymethyl methacrylate disperses evenly inside the polycarbonate matrix and forms a network, thereby ensuring that the system has excellent mechanical properties. The formula of the present invention improves the surface hardness of the system and can effectively improve The glossiness of the system. The material of the present invention can be used as a scratch-resistant high-gloss flame-retardant plastic part.

Description

technical field [0001] The invention relates to polycarbonate, in particular to a flame-retardant polycarbonate with high surface hardness and gloss and a preparation method thereof. The flame-retardant polycarbonate with high surface hardness and gloss can be used as a scratch-resistant high-gloss flame retardant plastic parts. Background technique [0002] Polycarbonate (PC) is a thermoplastic engineering plastic with excellent performance. It has outstanding impact resistance, creep resistance and dimensional stability, as well as heat resistance, low water absorption, non-toxicity and excellent dielectric properties. It is one of the five major projects The only product with good transparency among plastics. The sales volume of PC resin ranks first among the five general-purpose engineering plastics, and it is also the fastest-growing variety of general-purpose engineering plastics in recent years. At present, PCs are widely used in fields such as automobiles, electron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L33/12C08L25/12C08L23/08C08K5/134C08K5/526
Inventor 吴水珠宋湘怡曾钫赵建青
Owner SOUTH CHINA UNIV OF TECH