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High-performance toughened flame retardant PET (polyethylene terephthalate)/ABS (acrylonitrile-butadiene-styrene) alloy and preparation method

A high-performance, toughening technology, applied in the field of polymer materials, can solve the problems of low impact strength, poor flame retardancy, and insufficient toughness of PET/ABS alloys, and achieve strong environmental stress resistance and heat resistance High, good toughness effect

Inactive Publication Date: 2015-02-11
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PET / ABS alloy (polyethylene terephthalate / acrylonitrile-butadiene-styrene terpolymer) is an inexpensive and high-performance engineering plastic with low warpage and high surface quality , heat resistance, aging resistance and other characteristics, widely used in electronic appliances, automobile industry, electromechanical equipment, building materials and other industries, but PET / ABS alloy has the disadvantages of low notched impact strength, insufficient toughness, and poor flame retardancy , which limits the application in some fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A high-performance toughened flame-retardant PET / ABS alloy, the composition of which is: PET 40%, ABS 25%, toughening agent 15%, poly 2,6-dibromophenylene ether (PBO ) 15%, styrene-acrylonitrile-methacrylate hydroglyceride (SAG) 3%, ethylene bis-stearamide 1.5%, hindered phenol antioxidant 1076 and phosphite antioxidant 168 0.5%. Wherein, the PET is polyethylene terephthalate; the ABS is an acrylonitrile-butadiene-styrene terpolymer; Styrene-butadiene rubber (SBR) is the toughening agent of the core-shell structure of the shell. The specific method is to add 65wt% of nano-calcium carbonate into the high-speed mixer at a barrel temperature of 25°C to 70°C, stir for 1 to 5 minutes, and then add 3wt% methacrylic acid and 2wt% azobisisobutyronitrile, stirred for 10-60 minutes, then added 30wt% styrene-butadiene rubber (SBR), continued to stir for 5-15 minutes, discharged, and then added to the twin-screw extruder It is prepared after blending, extruding and granulating. ...

Embodiment 2

[0023] A high-performance toughened and flame-retardant PET / ABS alloy, the composition of which is: PET 33%, ABS 33%, toughening agent 10%, poly(p-diphenylsulfone phenyl phosphate) 18%, benzene Ethylene-acrylonitrile-methacrylate hydroglyceride (SAG) 4%, ethylene bis-stearamide 1.5%, hindered phenol antioxidant 1076 and phosphite antioxidant 168 compound 0.5%. Wherein, the PET is polyethylene terephthalate; the ABS is acrylonitrile-butadiene-styrene terpolymer; 1. Ethylene-octene copolymer (POE) is a toughening agent with a core-shell structure of the shell. The specific method is to add 65wt% of nano-silica to a high-speed mixer with a barrel temperature of 25°C to 70°C, and stir for 1 to 5 Minutes, then add 3wt% methacrylic acid and 2wt% azobisisobutyronitrile, stir for 10-60 minutes, then add 30wt% ethylene-octene copolymer (POE), continue stirring for 5-15 minutes, discharge , and then added to a twin-screw extruder for blending, extruding, and pelletizing.

[0024] Prep...

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Abstract

The invention discloses a high-performance toughened flame retardant PET (polyethylene terephthalate) / ABS (acrylonitrile-butadiene-styrene) alloy and a preparation method. The high-performance toughening flame retardant PET / ABS alloy comprises the following components by mass: 20%-70% of PET, 10%-50% of ABS, 5%-25% of a toughening agent, 12%-20% of a flame retardant, 1%-5% of a compatible agent, 0.5%-2% of a lubricant and 0.1%-1% of an antioxidant. The beneficial effect of the high-performance toughening flame retardant PET / ABS alloy is in that: compared with the existing technology, after surface pretreatment of inorganic rigid particles, by interaction and grafting reaction of the pretreated inorganic rigid particles and elastomer, a core-shell structure using the inorganic rigid particles as a core and the elastomer as a shell is formed for synergistic toughening, and the prepared PET / ABS alloy has the significant advantages of high strength, good toughness, high thermal resistance performance, strong environmental stress resistance and the like, and also has good flame retardant property and processing performance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-performance toughened flame-retardant PET / ABS alloy and a preparation method thereof. Background technique [0002] PET / ABS alloy (polyethylene terephthalate / acrylonitrile-butadiene-styrene terpolymer) is an inexpensive and high-performance engineering plastic with low warpage and high surface quality , heat resistance, aging resistance and other characteristics, widely used in electronic appliances, automobile industry, electromechanical equipment, building materials and other industries, but PET / ABS alloy has the disadvantages of low notched impact strength, insufficient toughness, and poor flame retardancy , limiting its application in certain fields. Contents of the invention [0003] The object of the present invention is to provide a high-performance toughened flame-retardant PET / ABS alloy and a preparation method thereof. [0004] The technical solutio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L55/02C08K13/06C08K9/10C08K3/26C08K3/36C08K3/34B29B9/06B29C47/92B29C48/92
Inventor 张正付宏海
Owner QINGDAO XINZHAN PLASTIC
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