Polyarylene thioether resin composition

A technology of polyarylene sulfide and resin composition, applied in coating and other directions, can solve the problems of reduced physical and mechanical properties, reduced mechanical properties, phosphate exudation, etc., and achieves improved molding operation performance, accelerated crystallization speed, The effect of oozing improvement

Inactive Publication Date: 2005-09-14
POLYPLASTICS CO LTD
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  • Abstract
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Problems solved by technology

However, with these methods, gas generation during molding melting, roughening of the molding surface, and degradation of mechanical properties have been observed.
Among them, the phosphoric acid ester described in JP-A-1-225660 has a good effect, but its thermal stability during high-temperature melting cannot be said to be sufficient, and there is still room for improvement in solving the aforementioned problems.
[0004] In addition, the phosphoric acid ester described in JP-A-2003-335945 is also effective and excellent in thermal stability when melted at a high temperature. Therefore, there are proble

Method used

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  • Polyarylene thioether resin composition
  • Polyarylene thioether resin composition

Examples

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Example

[0069]Examples 1-11 and Comparative Examples 1-11

[0070] The components (A), (B), and (C) shown in Tables 1 and 2 were added to the Henschel mixer in the amounts shown in Tables 1 and 2, and premixed for 5 minutes. According to the situation, the components (D) and (E) were added in the amounts shown in Tables 1 to 2, and mixed with a blender for 2 minutes. The mixture was put into an extruder with a barrel temperature of 320°C (( ) In PCM30 manufactured by Ikegai), the polyphenylene sulfide resin composition is granulated. Then the pellets were made into various test pieces and evaluated. The evaluation items and evaluation methods are as follows.

[0071] [Crystalline]

[0072] Using an injection molding machine (IS50EP manufactured by Toshiba Machine Co., Ltd.), a flat test piece with a thickness of 3 mm and a size of 50 mm × 70 mm was formed under the barrel temperature: 320°C; mold temperature: 100°C: and the following molding conditions. After being left at room temperatur...

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Abstract

Provided is a polyarylene sulfide resin molded article having a good surface state which can be molded at a significantly high crystallization speed without impairing heat resistance, mechanical properties, chemical resistance, dimensional stability and flame retardancy of polyarylene sulfide resins. The resin composition comprises (A) 100 pts. wt. polyarylene sulfide resin, (B) 0.1-10 pts. wt. aromatic phosphate of a specific structure, and (C) 3-35 pts. wt. polyphenylene oxide resin.

Description

technical field [0001] The present invention relates to a poly(arylene sulfide) resin composition and a molded article thereof, which significantly increase the crystallization rate of the molded article, suppress the bleeding of additives to the surface of the molded article, and have a good surface condition. Background technique [0002] Polyarylene sulfide (hereinafter referred to as PAS) resin represented by polyphenylene sulfide (hereinafter referred to as PPS) resin has high heat resistance, mechanical properties, chemical resistance, dimensional stability, and flame retardancy, so Widely used in electronic and electrical equipment parts materials, automotive machinery parts materials, chemical equipment parts materials, etc. However, PAS resin has a slow crystallization rate and a high glass transition temperature, so it is easy to form a partially uneven crystal structure, which will cause uneven appearance and structure on the surface of the molded product. In orde...

Claims

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Application Information

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IPC IPC(8): C08L81/02B29C45/00C08K3/00C08K5/521C08K5/523C08K7/02
Inventor 田岛义久山田真也
Owner POLYPLASTICS CO LTD
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