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Halogen-free fire-retardant polyphenyl ether composition capable of improving low-temperature toughness and preparation method thereof

A low-temperature toughness, polyphenylene ether technology, applied in the field of halogen-free flame retardant polyphenylene ether composition and its preparation, polyphenylene ether composition and its preparation field, can solve the problems of low temperature impact strength decrease, etc., achieve outstanding weather resistance, The effect of high fluidity and high heat resistance

Inactive Publication Date: 2010-08-18
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiency of the impact performance of the flame-retardant polyphenylene ether compound due to the plasticizing effect of the phosphate flame retardant, especially the low-temperature impact strength, and provide a halogen-free flame retardant with improved low-temperature toughness. Combustible polyphenylene ether composition, which has the advantages of flame retardancy, good mechanical properties, good low temperature toughness, high heat resistance, high fluidity, and outstanding weather resistance

Method used

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  • Halogen-free fire-retardant polyphenyl ether composition capable of improving low-temperature toughness and preparation method thereof
  • Halogen-free fire-retardant polyphenyl ether composition capable of improving low-temperature toughness and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0023] With the polyphenylene ether resin (intrinsic viscosity 0.45dL / g) of 20 weight parts, the high-impact polystyrene resin (melt flow rate 5g / 10min) of 20 weight parts, the anti-dripping agent of 0.2 weight part in high-speed mixer Mixed for 2 minutes, then added 60 parts by weight of polyphenylene ether resin (intrinsic viscosity 0.45dL / g), 5 parts by weight of maleic anhydride grafted styrene-butadiene-styrene copolymer (domestic SEBS-g- MAH), 8 parts by weight of liquid organophosphate flame retardant (tetraphenyl bisphenol A diphosphate), 3 parts by weight of branched silicone resin with phenyl, 0.5 parts by weight of antioxidant 1010, in Stir in a high-speed mixer for 4 minutes; put the uniformly mixed material into a twin-screw extruder for melt extrusion and granulation. The aspect ratio of the twin-screw extruder is 40, the screw speed is 300rpm / min, and the feeding speed is 280rpm / min, the temperature of each section of the screw barrel is 245-290°C, and the extr...

Embodiment 2

[0025] With the polyphenylene ether resin (intrinsic viscosity 0.5dL / g) of 10 weight parts, the high-impact polystyrene resin (melt flow rate 2g / 10min) of 30 weight parts, the anti-dripping agent of 0.5 weight part in high-speed mixer Mix for 3 minutes, then add 60 parts by weight of polyphenylene ether resin (intrinsic viscosity 0.5dL / g), 3 parts by weight of hydrogenated styrene-butadiene-styrene copolymer (SEBS YH503), 10 parts by weight of liquid Organic phosphate flame retardant (tetraphenyl bisphenol A diphosphate), 3 parts by weight of branched silicone resin with phenyl group, 0.7 part by weight of antioxidant 1010, 0.3 part by weight of antioxidant 136, Stir in a high-speed mixer for 5 minutes; put the uniformly mixed material into a twin-screw extruder for melt extrusion and granulation, the aspect ratio of the twin-screw extruder is 40, the screw speed is 300rpm / min, and the feeding speed is 280rpm / min, the temperature of each section of the screw barrel is 245-290°...

Embodiment 3

[0027]With the polyphenylene ether resin (intrinsic viscosity 0.38dL / g) of 25 weight parts, the high-impact polystyrene resin (melt flow rate 4g / 10min) of 15 weight parts, the anti-dripping agent of 0.2 weight part in high-speed mixer Mixed for 2 minutes, then added 60 parts by weight of polyphenylene ether resin (intrinsic viscosity 0.38dL / g), 5 parts by weight of maleic anhydride grafted styrene-butadiene-styrene copolymer (SEBS- g-MAH), 8 parts by weight of liquid organophosphate flame retardant (tetraphenyl bisphenol A diphosphate), 2 parts by weight of branched silicone resin with phenyl, 0.5 parts by weight of antioxidant DLTP , stirred in a high-speed mixer for 4 minutes; put the uniformly mixed material into a twin-screw extruder for melt extrusion granulation, the aspect ratio of the twin-screw extruder is 40, the screw speed is 300rpm / min, and the feeding speed The temperature is 280rpm / min, the temperature of each section of the screw barrel is 245-290°C, and the ex...

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Abstract

The invention discloses a halogen-free fire-retardant polyphenyl ether composition capable of improving low-temperature toughness and a preparation method thereof. The composition comprises the following components in parts by weight: 70 to 90 parts of polyphenyl ether resin, 10 to 30 parts of high impact polystyrene resin, 3 to 8 parts of elastic body, 5 to 10 parts of main fire retardant, 2 to 5 parts of assistant fire retardant, 0.1 to 1 part of antioxidant, and 0.05 to 0.5 part of anti-dripping agent. The polyphenyl ether composition is prepared after the components are subjected to pre-mixing, double-screw extruder plasticization and mixing. The polyphenyl ether composition has the advantages of fire retardance, high mechanical performance, good low-temperature toughness, high heat resistance, high flowability, outstanding weather resistance and the like, and is applicable in the fields of electronic appliance, office equipment, vehicles and the like.

Description

technical field [0001] The invention relates to a polyphenylene ether composition and a preparation method thereof, in particular to a halogen-free flame-retardant polyphenylene ether composition with improved low-temperature toughness and a preparation method thereof, belonging to the field of polymer materials and their molding processing. Background technique [0002] Polyphenylene ether (PP0) is one of the five major engineering plastics. It has good mechanical properties, electrical properties and high heat resistance, but its high melt viscosity and poor processability limit its practical application. Therefore, in industry, polystyrene (PS), especially high-impact polystyrene, which is compatible with it in a wide range of composition, is often used for alloying, so that its processing performance is greatly improved, and the original characteristics of PPO are basically retained. In addition, PPO resin itself is self-extinguishing, but its flame retardancy is signifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L51/00C08L83/04C08L83/06C08L53/02C08K5/523
Inventor 李刚信春玲何亚东戴伍国李庆春闫宝瑞张伟袁文
Owner BEIJING UNIV OF CHEM TECH
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