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Resin composition, method for producing resin composition, and molded article

A technology of resin composition and manufacturing method, which is applied in the field of resin composition, can solve the problems of flame retardancy, fluidity, appearance deterioration, etc., and achieve the effect of excellent appearance and high flame retardancy

Pending Publication Date: 2019-06-21
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In general, when an inorganic filler is mixed, the flame retardancy, fluidity, and appearance will deteriorate

Method used

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  • Resin composition, method for producing resin composition, and molded article
  • Resin composition, method for producing resin composition, and molded article
  • Resin composition, method for producing resin composition, and molded article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10、 comparative example 1～6

[0227] In the twin-screw extruder set as above, under the composition and production conditions shown in Tables 1 and 3, melt kneading was carried out at a discharge rate of 400 kg / hour to obtain pellets of the resin composition.

Embodiment 11

[0229] In the twin-screw extruder set as above, under the composition and production conditions shown in Table 2, melt kneading was carried out at a discharge rate of 400 kg / hour. First, the first resin composition is produced, and then the second resin composition is produced using the first resin composition to obtain pellets of the resin composition.

[0230] About each Example and a comparative example, the evaluation of the resin composition was performed by the said measuring method, and the result is shown in Tables 1-3.

[0231] 【Table 1】

[0232]

[0233] 【Table 2】

[0234]

[0235] 【table 3】

[0236]

[0237] As shown in Tables 1, 2, and 3, it can be seen that in Examples 1 to 11, the shrinkage of the test piece after aging at a temperature of 150°C and 24 hours is 6% to 20%, and the fluidity, flame retardancy , Excellent mechanical properties.

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Abstract

The invention provides a resin composition, a method for producing the resin composition, and a molded article. The composition is excellent in flowability and appearance and has high flame retardancy. A resin composition comprising (a) a polyphenylene ether-based resin, (b) a styrene-based resin, (c) a phosphorus-based compound, (d) an inorganic filler, and (e) polytetrafluoroethylene. The resincomposition contains 35%-60% by mass of component (d). A test piece of a resin composition, which is produced by a size having a length of 125 mm in the flow direction, a length of 13 mm in the vertical direction, and a thickness of 1.6 mm, is aged at a temperature of 150 DEG C for 24 hours, and then the shrinkage rate of the test piece represented by the following formula is 6%-20%. The test piece shrinkage [%] = (length [mm] of the test piece in the flow direction before aging-length [mm] of the test piece in the flow direction after aging / (length [mm] of the test piece in the flow directionbefore aging) * 100.

Description

technical field [0001] The present invention relates to a resin composition, a method for producing the resin composition, and a molded article. Background technique [0002] Conventionally, polyphenylene ether-based resins have excellent electrical insulation properties, heat resistance, hydrolysis resistance, and flame retardancy, and thus have been widely used in home appliances / OA equipment, automobile parts, and the like. [0003] In these applications, high flame retardancy is required due to problems such as fire, and polyphenylene ether-based resins can easily obtain flame retardancy by adding a phosphorus compound without using halides. In addition, since higher rigidity, heat resistance, and dimensional properties are required, reinforcing resin compositions containing inorganic fillers are often used. [0004] In general, when an inorganic filler is mixed, flame retardancy, fluidity, and appearance deteriorate. Especially regarding flame retardancy, flame retard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L27/18C08L51/04C08L25/12C08K5/521C08K3/34C08K7/14
Inventor 吉田浩一郎宫本朗
Owner ASAHI KASEI KK
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