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Method for preparing fire-retardant acrylonitrile-butadiene-styrene copolymer resin

The technology of styrene copolymer resin and acrylonitrile is applied in the field of preparation of flame retardant acrylonitrile-butadiene-styrene copolymer resin, which can solve the problems of corrosiveness and poisonous flame retardant, so as to reduce environmental pollution and achieve flame retardancy. Good performance, reducing the effect of material decomposition

Active Publication Date: 2012-03-07
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] "Research Overview of ABS Resin Flame Retardant Technology" ("Aging and Application of Synthetic Materials", Volume 35, Issue 1, 2006) introduced that the current ABS flame retardant is still dominated by the bromine-antimony system, of which tetrabromobisphenol A is used more At present, there are problems such as toxicity and corrosion of flame retardants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Formula (parts by weight):

[0015] SAN 50 copies

[0016] ABS grafting powder (60% glue content) 26 parts

[0017] Tetrabromobisphenol A 15 parts

[0018] Antimony trioxide 6.4 parts

[0019] N, N-ethylene bis stearamide 1.0 parts

[0020] Distearyl pentaerythritol diphosphite 0.2 parts

[0021] Silicone oil-magnesium stearate mixture 0.4 parts

[0022] preparation:

[0023] Preparation of silicone oil-magnesium stearate mixture: first add 1 kg of magnesium stearate in a 5L high-speed mixer; then add 0.5 kg of silicone oil (viscosity is 2000 Pa sec), and mix for 20 minutes at 100 rpm after closing the feeding cap; Mix for another 10 minutes at 200 rpm.

[0024] Flame retardant ABS preparation: mix the raw materials prepared according to the formula in a high-speed mixer for 3 to 5 minutes at high speed, and then add them into the co-rotating twin-screw extruder to blend according to the following process conditions. The extrusion temperature is 160-190°C. After...

Embodiment 2

[0035] Formula (parts by weight):

[0036] SAN 42 copies

[0037] ABS grafting powder (60% glue content) 30 parts

[0038] Tetrabromobisphenol A 18 parts

[0039] 8 parts antimony trioxide

[0040] N, N-ethylene bis stearamide 0.8 part

[0041] Distearyl pentaerythritol diphosphite 0.2 parts

[0042] Silicone oil-magnesium stearate mixture 0.5 parts

[0043] preparation:

[0044] Preparation of silicone oil-magnesium stearate mixture: first add 1 kilogram of magnesium stearate in a 5L high-speed mixer; then add 1 kilogram of silicone oil (viscosity is 3000 Pa·s), and mix at 100 rpm for 20 minutes after closing the feeding cap; Mix for another 10 minutes at 200 rpm.

[0045] Flame retardant ABS preparation: mix the raw materials prepared according to the formula in a high-speed mixer for 3 to 5 minutes at high speed, and then add them into the co-rotating twin-screw extruder to blend according to the following process conditions. The extrusion temperature is 160-190°C. ...

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Abstract

The invention relates to a method for preparing fire-retardant acrylonitrile-butadiene-styrene copolymer resin. The fire-retardant acrylonitrile-butadiene-styrene copolymer resin is prepared from 35 to 65 portions of styrene-acrylonitrile copolymer resin, 15 to 30 portions of ABS grafting rubber powder, 13 to 22 portions of tetrabromobisphemol A, 5 to 8 portions of antimonous oxide, 0.1 to 0.2 portion of distearyl pentaerythritol diphosphite, 0.5 to 1.0 portion of N,N-ethylene bis stearamide, and 0.1 to 0.5 portion of high-efficiency dispersing agent; the high-efficiency dispersing agent is prepared from silicone oil and magnesium stearate in a mass ratio of 1:2-1:1 by mixing through a variable frequency speed control high-speed mixer; and after the compositions are mixed, the mixture is added to a co-rotating twin screw extruder for extrusion and granulation at a temperature of between 160 and 200 DEG C to prepare the resin. The method has simple process; and a product has good performance, good stability and wide processing range, can be processed and formed at 220 DEG C, and has the fire retardation meeting the UL-94 V-0 grade standard.

Description

Technical field: [0001] The invention relates to a preparation method of a flame-retardant acrylonitrile-butadiene-styrene copolymer resin (abbreviation: ABS resin) that can be widely used in household appliances, electronic telecommunications, and auto parts. Background technique: [0002] The preparation process of the invention is simple and easy, the product has excellent performance, good stability, wide processing range, can be processed and shaped at 220 DEG C, and the product does not change color. The flame retardant performance reaches the UL-94V-0 standard and meets the requirements of the ROHS environmental protection directive. Under the same flame retardant grade, reduce the amount of flame retardant added by 0.5%-3.5%, and increase the impact strength by 50-110J / m. Improving flame retardant efficiency and reducing the amount of flame retardant used will reduce the production cost of flame retardant ABS, and also reduce environmental pollution, which has high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/12C08L83/04C08K13/02C08K5/136C08K3/22C08K5/098B29B9/06C08L55/02
Inventor 宋振彪赵新刚吴丽明闫柏郁王娴慧刘聪索延辉
Owner PETROCHINA CO LTD
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