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Thermoplastic flame-retardant alloy and preparation method thereof

A thermoplastic and alloy technology, which is applied in the field of flame-retardant ABS resin, can solve the problems of no consideration of processability and physical performance requirements, and there is no flame-retardant ABS/polyester/copolyester alloy, etc., to make up for easy yellowing, good Mechanical properties, continuous effect of preparation method

Active Publication Date: 2010-06-09
WUHAN JINFA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above studies are all aimed at the preparation of alloys from ABS resin and polyester / copolyester, without considering the requirements of processability, physical properties and other aspects when used as modified materials. In addition, in the field of electrical appliances, it is often required The material is firstly flame retardant to meet the requirements of safety regulations, but so far, there has been no report of flame retardant ABS / polyester / copolyester alloys

Method used

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  • Thermoplastic flame-retardant alloy and preparation method thereof
  • Thermoplastic flame-retardant alloy and preparation method thereof
  • Thermoplastic flame-retardant alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Accurately weigh 100Kg of ABS resin, 40Kg of PET, 20Kg of tetrabromobisphenol A, 10Kg of CPE, 9Kg of antimony trioxide powder, tetrakis[β-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionic acid] Pentaerythritol ester (anti-photothermal oxidant) 1Kg, vinylbisstearamide 0.8Kg, anti-dripping agent perfluoropolyethylene 0.5Kg. The novel thermoplastic flame-retardant alloy of the present invention is obtained through thorough mixing by a high-speed mixer, and a method of melt blending and one-step extrusion using a co-rotating twin-screw extruder. The physical properties of the obtained material are (ISO standard): IZOD notched impact strength 25KJ / m 2 , Bending strength 66MPa; Gloss (60-degree incident angle): 94.5; Flame-retardant grade (UL94): 1.5mm V-0.

Embodiment 2

[0043] Accurately weigh 100Kg of ABS resin, 30Kg of PET, 15Kg of PETG, 15Kg of tetrabromobisphenol A, 15Kg of CPE, 5Kg of antimony trioxide powder, tetrakis[β-(3',5'-di-tert-butyl-4'-hydroxy Phenyl)propionic acid]pentaerythritol ester (anti-photothermal oxidant) 1Kg, vinylbisstearamide 0.3Kg, perfluoropolyethylene 0.8Kg. The novel thermoplastic flame-retardant alloy of the present invention is obtained through thorough mixing by a high-speed mixer, and a method of melt blending and one-step extrusion using a co-rotating twin-screw extruder. The physical properties of the obtained material are (ISO standard): IZOD notched impact strength 28KJ / m 2 , Bending strength 64MPa; Gloss (60-degree incident angle): 92; Flame-retardant grade (UL94): 1.5mm V-0.

Embodiment 3

[0045] Accurately weigh 100Kg of ABS resin, 25Kg of PETG, 25Kg of PCTG, 10Kg of tetrabromobisphenol A, 5Kg of brominated epoxy, 8Kg of CPE, 3Kg of antimony trioxide powder, tetrakis[β-(3',5'-di-tert-butyl Base-4'-hydroxyphenyl)propionic acid]pentaerythritol ester (anti-photothermal oxidant) 0.5Kg, vinylbisstearamide 2Kg, perfluoroethylene 0.5Kg. The novel thermoplastic flame-retardant alloy of the present invention is obtained through thorough mixing by a high-speed mixer, and a method of melt blending and one-step extrusion using a co-rotating twin-screw extruder. The performance of the obtained material is (ISO standard): IZOD notched impact strength 30KJ / m 2 , Bending strength 63MPa; Gloss (60-degree incident angle): 89; Flame-retardant grade (UL94): 1.5mm V-0.

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Abstract

The invention discloses thermoplastic flame-retardant alloy and a preparation method thereof. The alloy consists of the following components in portion by weight: 5 to 94 parts of ABS resin, 3 to 94 parts of polyester or copolyester or mixture of the polyester and the copolyester, 1 to 50 parts of brominated flame retardants, 1 to 10 parts of auxiliary flame retardants, 0.001 to 30 parts of chlorinated polyethylene (CPE), 0.001 to 2 parts of anti-dripping additives, and 0.1 to 6 parts of processing aids. The thermoplastic flame-retardant alloy has better glossiness and scratch resistance, stronger ultraviolet radiation resistance and better mechanical property compared with the conventional flame-retardant ABS, and overcomes the disadvantage of easy yellowing of the flame-retardant ABS on certain occasions with high weather-resistant requirements. In addition, the method for preparing the thermoplastic flame-retardant alloy has continuity, stability and high feasibility.

Description

technical field [0001] The invention relates to flame-retardant ABS resin technology, in particular to a thermoplastic flame-retardant alloy material and its preparation technology. Background technique [0002] Flame retardant ABS resin is widely used in household audio-visual equipment shells, office electronic equipment shells, white goods, Power conversion devices and other fields. The usual flame retardant ABS formula contains ABS resin, brominated flame retardant, antimony oxide or salt, anti-dripping agent, and necessary processing aids such as lubricants, so that rigidity, toughness, fluidity and A product with a relatively balanced flame retardancy. However, due to the double bond in the rubber of ABS resin itself and the nitrile group of acrylonitrile, it is easy to undergo a ring-forming reaction under the irradiation of ultraviolet light, thereby making the material yellow, so its weather resistance is not good. In some places with high weather resistance requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L67/00C08K13/02C08K5/136C08K3/22C08K5/3492B29B9/12B29C47/92B29C48/405B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C2948/92895B29C48/405
Inventor 许晶玮叶晓光吴博吴晓辉宁方林胡付余
Owner WUHAN JINFA TECH CO LTD
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