Preparation method of flame retardant PC/ABS (poly carbonate/acrylonitrile butadiene styrene) alloy

A technology of ABS resin and alloy, which is applied in the field of polymers, can solve the problems of easy stress cracking, restriction, and easy wear, and achieve the effect of simple and convenient method and suitable for large-scale promotion

Inactive Publication Date: 2013-04-24
浙江中塑优美新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polycarbonate (PC) is an engineering plastic with excellent performance, but it has disadvantages such as poor processing fluidity, easy stre

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Weigh 100 kg of polycarbonate, 60 kg of ABS resin, 20 kg of flame retardant, 5 kg of chlorinated polyethylene, 4 kg of EVA and 1 kg of oleic acid, wherein the flame retardant is more than 8 kg Polyaryl phosphate, 3 kg of magnesium hydroxide, 2 kg of barium hydroxide and 7 kg of potassium fluorobutane sulfonate.

[0018] Put PC pellets and ABS pellets in a vacuum drying oven, dry PC pellets at 115°C for 5 hours to obtain dry PC pellets; dry ABS pellets at 80°C for 3 hours to obtain dry ABS pellets . After mixing dry PC pellets and ABS pellets, add flame retardant, chlorinated polyethylene, EVA and oleic acid, mix evenly, place in a twin-screw screw machine, and pelletize after melt extrusion to obtain PC / ABS alloy pellets. The temperature of each zone of the twin-screw screw machine is: zone 1 temperature: 220°C, zone 2 temperature: 230°C, zone 2 temperature: 230°C, zone 4 temperature: 235°C, zone 5 temperature: 230°C, zone 6 temperature: 230 ℃; twin-screw residence t...

Embodiment 2

[0020] Prepare PC / ABS alloy in the same manner as Example 1, except that the flame retardant is 8 kilograms of polyaryl phosphate, 5 kilograms of magnesium hydroxide and 7 kilograms of potassium fluorobutylsulfonate .

Embodiment 3

[0022] PC / ABS alloy was prepared in the same manner as in Example 1, except that the flame retardant was 8 kilograms of polyaryl phosphate, 5 kilograms of barium hydroxide and 7 kilograms of potassium fluorobutyl sulfonate .

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PUM

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Abstract

The invention relates to a preparation method of a flame retardant PC/ABS (poly carbonate/acrylonitrile butadiene styrene) alloy. The method comprises the following steps of: putting PC particles and ABS particles in a vacuum drying box, and drying the PC particles for 2-6hours at 100 DEG C to 120 DEG C, to obtain dry PC particles; drying the ABS particles for 1hour to 5hours at 50 DEG C to 90 DEG C, to obtain dry ABS particles; and mixing the dry PC particles with the dry ABS particles, then adding a flame retardant, a compatilizer, a flexibilizer and a lubricant, mixing uniformly, putting into a double-screw screw conveyer, melting and extruding and then granulating, so as to finally obtain the PC/ABS alloy particles, wherein the temperature of each area of the double-screw screw conveyer is as follows: the temperature of the area I is 200 DEG C to 240 DEG C, the temperature of the area II is 200 DEG C to 240 DEG C, the temperature of the area III is 200 DEG C to 240 DEG C, the temperature of the area IV is 200 DEG C to 240 DEG C, the temperature of the area V is 200 DEG C to 240 DEG C, and the temperature of the area VI is 200 DEG C to 240 DEG C, the standing time of the double-screw is 1minute to 3minutes, and the rotation speed of a host is 200-500rp. The preparation method provided by the invention is simple and convenient, and is suitable for large-scale popularization.

Description

technical field [0001] The invention relates to the field of macromolecules, in particular to a method for preparing a flame-retardant PC / ABS alloy. Background technique [0002] Polycarbonate (PC) is an engineering plastic with excellent performance, but it has disadvantages such as poor processing fluidity, easy stress cracking, sensitivity to notch, easy wear, poor chemical resistance, and high price, which make its application in many fields restricted. limit. The performance of acrylonitrile-butadiene-styrene (ABS) is between engineering plastics and general-purpose plastics. In order to meet the fire safety requirements of PC / ABS alloys in practical applications, the research on halogen-free and environment-friendly PC / ABS alloy materials has become the focus in the field of flame retardancy. Contents of the invention [0003] The purpose of the present invention is to provide a preparation method of flame-retardant PC / ABS alloy. [0004] In order to realize the o...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08K5/523C08K3/22C08K5/42C08K13/02B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 陈维君
Owner 浙江中塑优美新材料有限公司
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