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Halogen-free flame-retardant ABS/PET alloy and preparation method thereof

A technology of alloy and nitrogen-based flame retardant, which is applied in the field of halogen-free flame-retardant ABS/PET alloy and its preparation, to achieve the effects of improved comprehensive performance, convenient preparation, and easy processing

Active Publication Date: 2012-02-15
GUANGZHOU SUPER DRAGON ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development trend of halogen-free materials for electronic appliances, the halogen-free flame-retardant ABS / PET has a broad market space, and there is no report on the halogen-free flame-retardant ABS / PET alloy

Method used

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  • Halogen-free flame-retardant ABS/PET alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) PET resin (intrinsic viscosity 0.8dl / g) was air-dried at 120°C for 5 hours; ABS resin (rubber content 35%) was air-dried at 90°C for 4 hours;

[0051](2) 15g of dried PET resin, 60g of ABS resin, 4.5g of compatibilizer methacrylate-acrylate-styrene copolymer, 13g of phosphorus-based flame retardant triphenyl phosphate, and nitrogen-based flame retardant 7 g of ammonium polyphosphate and 0.5 g of antioxidant tetrakis (3,5-di-tert-butyl-4-4-hydroxyphenyl) were sequentially added to the mixer, and stirred and mixed for 4 minutes at a speed of 400 rpm to obtain a mixture;

[0052] (3) Add the mixture obtained in step (2) into a twin-screw extruder, melt and extrude to granulate, and the extruded material is cooled, air-dried, pelletized, and dried to obtain a halogen-free flame-retardant ABS / PET alloy product;

[0053] The processing conditions of the twin-screw extruder are as follows:

[0054] Temperature: Zone 1 180°C; Zone 2 185°C; Zone 3 185°C; Zone 4 200°C; Zone ...

Embodiment 2

[0069] (1) PET resin (intrinsic viscosity 1.0dl / g) was air-dried at 140°C for 3 hours; ABS resin (rubber content 50%) was air-dried at 80°C for 4 hours;

[0070] (2) 30g of dried PET resin, 43g of ABS resin, 5g of compatibilizer methacrylate-styrene-butadiene rubber-styrene copolymer, 3.5g of toughening agent ethylene-acrylate copolymer, phosphorus-based flame retardant Add 12g of resorcinol polycondensed aryl phosphate, 6g of nitrogen-based flame retardant melamine cyanurate and 0.5g of antioxidant tris(2,4-di-tert-butylphenyl)phosphite into the mixer in turn , stirring and mixing at a speed of 500 rpm for 3 minutes to obtain a mixture;

[0071] (3) Add the mixture obtained in step (2) into a twin-screw extruder, melt and extrude to granulate, and the extruded material is cooled, air-dried, pelletized, and dried to obtain a halogen-free flame-retardant ABS / PET alloy product;

[0072] The processing conditions of the twin-screw extruder are as follows:

[0073] Temperature: ...

Embodiment 3

[0088] (1) PET resin (intrinsic viscosity 0.68dl / g) was air-dried at 110°C for 6 hours; ABS resin (rubber content 60%) was air-dried at 80°C for 3 hours;

[0089] (2) 40g of dried PET resin, 40g of ABS resin, 4g of compatibilizer methacrylate-styrene-butadiene rubber-styrene copolymer, 3.5g of toughening agent ethylene vinyl acetate copolymer, phosphorus-based flame retardant Microcapsule red phosphorus masterbatch (YS-850W of Guangzhou Yinsu) 6g, phosphate melamine salt 6g and N,N'-hexamethylene-1,6-di[3-(3,5-di-tert-butyl-4 -4 hydroxyphenyl) propionamide] 0.5g was added in the mixer successively, and stirred and mixed for 5 minutes at a rotating speed of 300 rpm to obtain a mixture;

[0090] (3) Add the mixture obtained in step (2) into a twin-screw extruder, melt and extrude to granulate, and the extruded material is cooled, air-dried, pelletized, and dried to obtain a halogen-free flame-retardant ABS / PET alloy product;

[0091] The processing conditions of the twin-screw ...

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Abstract

The invention discloses a halogen-free flame-retardant ABS / PET alloy and a preparation method thereof. The alloy consists of the following components in percentage by weight: 15 to 50 percent of PET resin, 30 to 60 percent of ABS resin, 5 to 15 percent of phosphorus flame retardants, 5 to 10 percent of nitrogenated flame retardants, 0 to 6 percent of compatilizer, 0 to 5 percent of flexibilizer and 0 to 0.5 percent of antioxidant. The alloy avoids releasing harmful substances to human body in a combustion process of brominated flame retardants by combining a flame-retardant system by adoptingphosphorus and nitrogen compounds, has environmental-friendly significance, simultaneously improves combination properties of a composite material and is easy to mold and process.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a halogen-free flame-retardant ABS / PET alloy and a preparation method thereof. Background technique [0002] ABS (acrylonitrile-butadiene-styrene terpolymer) has the characteristics of good toughness, fluidity, rigidity, low temperature resistance and certain chemical resistance. It is currently the engineering plastic with the largest amount and the widest application. one. PET (polyethylene terephthalate) is a crystalline engineering plastic, which has very good mechanical properties, chemical resistance, oil resistance, electrical insulation and heat resistance, and is cheap and widely used. ABS / PET alloy can overcome the shortcomings of PET's low impact strength and dimensional instability, and at the same time improve the chemical resistance of ABS and reduce costs. It is a high-performance alloy with outstanding cost performance. It can be used in ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L55/02C08L67/02C08K5/523C08K3/32C08K5/3492C08K9/10C08K3/02B29C47/92B29C48/92
CPCB29C48/04
Inventor 郝建鑫郝源增任萍余鹏
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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