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Polyphenyl ether polypropylene resin composition and preparation method thereof

A technology of polypropylene resin and polyphenylene ether, which is applied in the field of resin composition and its preparation, can solve the problems of increasing molding cycle and energy consumption, low stiffness of the composition, etc., and achieve an excellent balanced effect

Active Publication Date: 2012-10-10
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The resin composition prepared by the above-mentioned prior art makes the rigidity of the composition relatively low due to the influence of the hydrogenated block copolymer or other elastomers used; Molding law increases molding cycle and energy consumption

Method used

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  • Polyphenyl ether polypropylene resin composition and preparation method thereof
  • Polyphenyl ether polypropylene resin composition and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] The polyphenylene ether polypropylene resin composition of the present embodiment comprises each component of the proportioning shown in Table 1;

[0044] In this example, the polypropylene resin used is the homopolypropylene resin of Shanghai Petrochemical Co., Ltd., and the MFR measured according to ASTM D-1238 at 230°C and a load of 2.16kg is 5-10g / 10min; the polyphenylene ether resin is Bluestar The poly(2,6-dimethyl-1,4-phenylene) ether resin of Chemical New Materials Co., Ltd. is measured with chloroform solution at 30°C. Its relative viscosity is 0.30-0.50, and its weight average molecular weight and number average The molecular weight ratio is (2.2-5.0):1; the styrene-based resin is rubber-modified polystyrene resin from Chimei Company, and the MFR is 4-8g / 10min measured at 200°C and 5.0kg load according to ASTM D-1238; The compatibilizer used is Yueyang Petrochemical Company's styrene-ethylene / butylene-styrene (SEBS) block copolymer, YH-500 series linear struct...

Embodiment 2

[0049] The present embodiment is the same as embodiment 1, the difference is:

[0050] The polyphenylene ether polypropylene resin composition of the present embodiment comprises each component of the proportioning shown in Table 1;

[0051] In this example, the compatibilizer used is the styrene-ethylene / butylene-styrene (SEBS) block copolymer of Yueyang Petrochemical Company, YH-600 series four-arm star-shaped structure product, which contains styrene mass The percentage content is 30-35%.

[0052] This embodiment also relates to the preparation method of the aforementioned polyphenylene ether polypropylene resin composition, comprising the following steps:

[0053] (a) Pre-mixing: Mix the polyphenylene ether resin, styrene-based resin and compatibilizer in the ratio shown in Table 1 and add them into a medium-speed mixer. The mixing time is 5-10 minutes, and mix well;

[0054] (b) Add the product of the step (a) into a twin-screw extruder with a temperature of 270-320°C. ...

Embodiment 3

[0056] The polyphenylene ether polypropylene resin composition of the present embodiment comprises each component of the proportioning shown in Table 1;

[0057] In this example, the polypropylene resin used is a crystalline propylene-ethylene block copolymer; the polyphenylene ether resin is obtained by copolymerization of 2,6-dimethylphenol, 2,3,6-trimethylphenol and o-cresol Copolymer; styrene resin is styrene-acrylonitrile copolymer; compatibilizer is methyl styrene-isoprene-methyl styrene block copolymer with star structure.

[0058] This embodiment also relates to the preparation method of the aforementioned polyphenylene ether polypropylene resin composition, comprising the following steps:

[0059] (a) Premixing: Mix the polyphenylene ether resin and compatibilizer in the ratio shown in Table 1 and add them into a medium-speed mixer. The mixing time is 10-15 minutes, and mix well;

[0060] (b) Add the product of the step (a) into a twin-screw extruder with a temperatu...

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Abstract

The invention relates to a polyphenyl ether polypropylene resin composition and a preparation method thereof. The composition comprises, by mass, 30% to 60% of polypropylene resins, 20% to 50% of polyphenyl ether resins, 0% to 20% of styrene resins and 5% to 20% of compatilizers. The preparation method includes the following steps of uniformly mixing the polyphenyl ether resins, the styrene resins and the compatilizers to obtain a premix, placing the premix in a double-screw extruder, simultaneously adding the polypropylene resins in a side-feed mode, performing a melt extrusion and granulating. The polyphenyl ether polypropylene resin composition and the preparation method thereof have the advantages that the property of the polyphenyl ether polypropylene resin composition is between those of thermoplastic polyolefin and engineering plastics, a good balance among the rigidity, toughness, heat resistance and processing performance of the material is achieved, the polyphenyl ether polypropylene resin composition can be applied to various fields such as automobile dashboards, automobile seat base plates, electric tool shells, fluid engineering components and food utensils, and the polyphenyl ether polypropylene resin composition and the preparation method thereof have a good application prospect.

Description

technical field [0001] The invention relates to a resin composition and a preparation method thereof, in particular to a polyphenylene ether polypropylene resin composition and a preparation method thereof. Background technique [0002] Polyphenylene ether (PPE) resin is one of the five well-known engineering thermoplastics. PPE has the characteristics of high heat resistance, low water absorption, excellent mechanical and electrical properties, and easy flame retardant treatment. It is widely used in automobiles, office machinery, electrical appliances, etc. and electronics and water treatment industries. The biggest disadvantage of PPE is high melt viscosity, difficult molding and processing, and poor oil resistance. Polypropylene (PP) resin is excellent in processability, oil resistance, water resistance, acid and alkali corrosion resistance, but inferior in heat resistance, rigidity and impact resistance. Therefore, mixing polyphenylene ether resin and polypropylene re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L53/00C08L71/12C08L25/06C08L25/12C08L53/02
Inventor 单桂芳朱亚明周霆罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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