Preparation method for flame-retardant and weather-resistant modified ABS resin

An ABS resin and a manufacturing method technology, applied in the field of plastic alloys, can solve the problems of poor flame retardant performance, affecting the application of ABS resin, mechanical properties and bad appearance changes, etc., and achieve the effect of improving flame retardant and weather resistance.

Active Publication Date: 2014-11-19
TIANJIN DAGU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to poor flame retardancy, mechanical properties and appearance changes under the action of light aging, the application of ABS resin in communication, home appliance shell, outdoor decoration materials, electrical box and other fields is affected.

Method used

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  • Preparation method for flame-retardant and weather-resistant modified ABS resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: 70 parts of ABS resin, 30 parts of ASA resin, 20 parts of tetrabromobisphenol A, 4 parts of antimony trioxide, 0.5 part of antioxidant 1010, 0.3 part of magnesium stearate, 0.3 part of UV-P, Take 0.3 part of light stabilizer 770 and 7 parts of styrene maleic anhydride graft copolymer.

Embodiment 2

[0017] Example 2: 65 parts of ABS resin, 35 parts of ASA resin, 18 parts of tetrabromobisphenol A, 4 parts of antimony trioxide, 0.3 part of antioxidant 626, 0.3 part of antioxidant 1076, ethylene bisstearamide 0.3 parts, UV-326 0.3 parts, light stabilizer 770 0.3 parts, and methyl methacrylate-butadiene-styrene copolymer 8 parts.

Embodiment 3

[0018] Example 3: 70 parts of ABS resin, 30 parts of ASA resin, 20 parts of tetrabromobisphenol A, 4 parts of antimony trioxide, 0.3 part of antioxidant 626, 0.3 part of antioxidant 1076, 0.3 part of magnesium stearate , 0.3 parts of ultraviolet absorber UV-326, 0.3 parts of light stabilizer 770, and 7 parts of ethylene-acrylate-maleic anhydride copolymer.

[0019] The manufacturing method of the above embodiment: Weigh the materials according to the weight parts of the materials and then add them to the high-speed mixer, mix them evenly and add them to the twin-screw extruder. The temperature settings of the eight temperature zones in the extruder are respectively 190°C, 200°C, 210°C, 220°C, 230°C, 230°C, 220°C, 220°C, 220°C, the main engine speed is 300 rpm, the extruded strip is cooled and hardened through the circulating water tank, and then enters the pelletizer for granulation and cutting The output material of the granulator enters the vibrating screen, and the finished pr...

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Abstract

The invention provides a preparation method for flame-retardant and weather-resistant modified ABS resin. The modified ABS resin comprises the following materials in part by weight: 50 to 80 parts of ABS resin, 20 to 50 parts of ASA resin, 10 to 25 parts of brominated flame retardant, 2 to 5 parts of auxiliary flame retardant, 0.1 to 0.8 part of antioxidant, 0.1 to 0.5 part of lubricant, 0.1 to 0.5 part of ultraviolet light absorber, 0.1 to 0.5 part of light stabilizer and 2 to 10 parts of compatible toughening toughening agent. After all the materials are weighed in a proportion, adding the materials to a blender, evenly blending the materials, and then extruding the materials to obtain a finished product by utilizing an extruder. The modified ABS resin prepared by the method has the advantages that the mechanical property and the processing property are consistent with those of the ABS resin, and the flame-retardant and weather-resistant properties of the resin are improved.

Description

Technical field [0001] The invention relates to the field of plastic alloys, in particular to a method for manufacturing a flame-retardant and weather-resistant modified ABS resin. Background technique [0002] ABS resin is a thermoplastic composed of acrylonitrile (Acrylonitrile), butadiene (Butadiene) and styrene (Styrene). Because of its good surface gloss, chemical resistance, excellent mechanical properties and good processability, it is widely used in electrical appliances, automobiles, machinery and other fields. However, ABS resin is a flammable polymer material. At the same time, due to the butadiene double bond in its molecule, ABS resin is prone to thermal oxidative aging and light aging, especially when irradiated by ultraviolet rays with a wavelength of 290 to 330 nm. The effect is even worse, causing the parts to yellow or even crack during use, and the impact strength is greatly reduced. Due to poor flame retardancy, adverse changes in mechanical properties and a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L55/02C08L51/00C08K13/02B29B9/06B29C47/92B29C48/92
CPCB29C47/92B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 王一业王华伟刘金龙关胜军王宁
Owner TIANJIN DAGU CHEM CO LTD
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