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

A technology of ABS resin and manufacturing method, which is applied in the field of plastic alloys, can solve problems such as poor flame retardancy, bad changes in mechanical properties and appearance, and affect the application of ABS resin, and achieve the effect of improving flame retardancy and weather resistance

Active Publication Date: 2012-12-26
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] Embodiment 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, 0.3 parts of light stabilizer 770, 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, 0.3 parts of UV-326, 0.3 parts of light stabilizer 770, 8 parts of methyl methacrylate-butadiene-styrene copolymer.

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, 7 parts of ethylene-acrylate-maleic anhydride copolymer.

[0019] The manufacturing method of the above-mentioned embodiment: Weigh each material according to the weight ratio of the material and then add it to the high-speed mixer, stir it evenly and add it 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, the speed of the main machine is 300 rpm, the extruded material is cooled and hardened by the circulating water tank, and then enters the pelletizer for granulation, cutting The output material of the granulator enters the vibrating sieve, and the finished prod...

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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 flame-retardant and weather-resistant modified ABS resin. Background technique [0002] ABS resin is a thermoplastic composed of three components: 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, because of the butadiene double bond in the molecule of ABS resin, ABS resin is prone to thermal oxygen aging and photoaging, especially under the irradiation of ultraviolet rays with a wavelength of 290-330nm, it will be oxidized. The effect is even worse, causing the parts to be easily yellowed or even cracked during use, and the impact strength is greatly reduced. Due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L51/00C08K13/02B29B9/06B29C47/92B29C48/92
CPCB29C48/40B29C48/92B29C2948/92704B29C2948/92895
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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