High-heat resistance halogen-free fire-retarding polyphenylether and polystyrene composite and preparation method thereof

A polystyrene and polystyrene resin technology, applied in the field of polymer materials and their molding processing, can solve the problems of insufficient flame retardancy, affecting electrical properties, and large dosage, so as to achieve high production efficiency, prevent precipitation, and reduce dosage Reduced effect

Active Publication Date: 2009-11-04
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the CN1319124A patent of General Electric Company introduces a resin composition composed of polyphenylene ether resin, polystyrene resin, glass fiber, mica and phosphoric acid ester, but the UL-94 flame resistance test result of this resin compositio

Method used

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  • High-heat resistance halogen-free fire-retarding polyphenylether and polystyrene composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Formula: 45 parts by weight of polyphenylene ether resin, 40 parts by weight of polystyrene resin, 2 parts by weight of toughening agent (styrene-isoprene-styrene), 12 parts by weight of halogen-free flame retardant (microcapsule 1 weight part of coated red phosphorus, 8 weight parts of triphenyl phosphate, 3 weight parts of tripropyl phosphate), 1 weight part of processing aid (silicone).

[0021] Preparation method: Using high-speed pre-mixing dispersion extrusion process, polyphenylene ether resin, polystyrene resin, microencapsulated coated red phosphorus (purchased from Sichuan Chenguang Chemical, trade name RPM), toughening agent, processing aid Put into the high-mixer, after dispersion and mixing, plasticize and knead through the twin-screw extruder. The liquid flame retardant is evenly dispersed into the PPO / HIPS alloy. The aspect ratio of the twin-screw extruder is 24. There is a set of liquid pump device, temperature control and vacuum exhaust system; the temp...

Embodiment 2

[0023] Formula: 84 parts by weight of polyphenylene ether resin, 10 parts by weight of polystyrene resin, 2 parts by weight of toughening agent (a mixture of styrene-butadiene-styrene and ethylene-propylene rubber in a weight ratio of 1:1), 4 parts by weight of halogen-free flame retardant (1 part by weight of microencapsulated red phosphorus, 2 parts by weight of resorcinol bis(diphenyl phosphate), 1 part by weight of bisphenol bis(diphenyl phosphate)) , 0.3 parts by weight of processing aid (fatty acid amide).

[0024] Preparation method: Using high-speed pre-mixing dispersion extrusion process, polyphenylene ether resin, polystyrene resin, microencapsulated coated red phosphorus (purchased from Sichuan Chenguang Chemical, trade name RPM), toughening agent, processing aid Put it into a high-mixer, after dispersion and mixing, plasticize and knead through a twin-screw extruder, and at the same time, resorcinol bis(diphenyl phosphate), bisphenol bis(diphenyl phosphate) ) Liqu...

Embodiment 3

[0026]Prescription: polyphenylene ether resin is 59 weight parts, and polystyrene resin is 25 weight parts, toughening agent (styrene-butadiene-styrene and hydrogenated styrene-isoprene-styrene by weight 1: 2) 4 parts by weight, 10 parts by weight of halogen-free flame retardant (3 parts by weight of microencapsulated red phosphorus, 2 parts by weight of triethyl phosphate, 4 parts by weight of bisphenol A bis(two xylyl phosphate) , xylyl triethylphenyl phosphite 1 weight part), processing aid (organic silicone oil) 2 weight parts.

[0027] Preparation method: adopt high-speed pre-mixing dispersion extrusion process, add polyphenylene ether resin, polystyrene resin, microencapsulated coated red phosphorus (purchased from Lianyungang Xintuo Siliconization Technology Co., Ltd.), toughening agent, and processing aids High mixer, after dispersing and mixing, plasticize and knead through a twin-screw extruder, and at the same time triethyl phosphate, bisphenol A bis(bisxylyl phosph...

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Abstract

The invention discloses a high-heat resistance halogen-free fire-retarding polyphenylether and polystyrene composite and a preparation method thereof. The composite comprises polyphenylene oxide resin, polystyreneresin, toughener, processing aid and a halogen-free fire retarding agent, wherein the halogen-free fire retarding agent is microencapsulated coated red phosphor and is used in combination with one or more of organic phosphates or phosphite esters in a separate charging mode. The components are subjected to melt blending as well as plasticization and blending in a double screw extruder to form the composite material of the invention. The method is continuous in processing process and high in production efficiency. The composite material of the invention can radically solve the problems of the prior fire retarding art such as halogen content of the fire retarding agent, easy precipitation, low fire retarding level and the like. Products made from the composite material are high in heat resistance, smooth in surface, environmentally-friendly, free from any halogen substance and applicable in the fields of electronic appliances, office equipment, fluid engineering and the like.

Description

technical field [0001] The invention belongs to the field of polymer materials and their molding processing, in particular to a highly heat-resistant, halogen-free flame-retardant polyphenylene ether / polystyrene compound and a preparation method thereof. Background technique [0002] Polyphenylene oxide (PPO) is a kind of thermoplastic resin with high temperature resistance. It has excellent physical and mechanical properties, heat resistance and electrical insulation. It has low hygroscopicity, high strength, good dimensional stability, and creep resistance at high temperature. The best of all engineering thermoplastics. However, due to the high viscosity of pure PPO melt and extremely poor processing formability, in 1967, General Electric Company of the United States successfully alloyed with polystyrene (PS), especially high impact polystyrene (HIPS), and its processing performance was improved. Greatly improved, and basically retains the original characteristics of pure...

Claims

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Application Information

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IPC IPC(8): C08L71/12C08L25/06C08K13/06C08K5/521C08K5/524
Inventor 吴建国李兰军
Owner NANJING JULONG SCI&TECH CO LTD
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