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Polyphenylene sulfide resin composition and moldings thereof

A technology of polyphenylene sulfide resin and composition, applied in the directions of instruments, optics, optical components, etc., can solve the problem of insufficient reduction of lens blur, and achieve the effect of not damaging fluidity and mechanical strength

Inactive Publication Date: 2015-03-25
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(For example, refer to Patent Document 9.) However, in the compositions specifically disclosed in Patent Documents 8 and 9, at around 200° C., the blurring of lenses etc. is not sufficiently reduced.

Method used

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  • Polyphenylene sulfide resin composition and moldings thereof
  • Polyphenylene sulfide resin composition and moldings thereof
  • Polyphenylene sulfide resin composition and moldings thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10

[0173] Examples are shown in Table 1. Examples 1 to 4 are compositions in which Mg—M—Al hydrotalcite particles are blended in PPS. The more Mg-M-Al hydrotalcite particles, the smaller the haze value and the less gas generated.

[0174] Examples 5 to 7 are examples in which Mg—M—Al hydrotalcite particles are added to PPS, and glass fibers are further blended. The more Mg-M-Al hydrotalcite particles, the smaller the haze value and the less gas generated. In addition, the molding shrinkage rate is reduced by the blending of glass fibers.

[0175] Examples 8 to 10 are examples in which Mg-M-Al hydrotalcite particles were added to PPS, and glass fibers and calcium carbonate were further blended. The more Mg-M-Al hydrotalcite particles, the smaller the haze value and the less gas generated. The molding shrinkage rate is equivalent to that of Examples 5 to 7 in which only glass fibers are blended.

[0176] [Table 1]

[0177]

Embodiment 11～27

[0183] Table 3 shows an example of a case where two types of PPS resins are mixed. In addition, the melt viscosity of a composition containing 40 parts by weight of (A-1) PPS resin-1 and 60 parts by weight of (A-2) PPS resin-2 was 90 Pa·s. Examples 11 to 14 are compositions in which Mg-M-Al hydrotalcite particles (M=Mg) are blended with PPS resin. The greater the amount of Mg-M-Al hydrotalcite particles blended, the smaller the haze value and the less gas generated.

[0184] Examples 15 to 17 are examples in which a PPS resin is blended with Mg-M-Al hydrotalcite particles (M = Mg) and glass fibers are further blended. The more Mg-M-Al hydrotalcite particles, the smaller the haze value and the less gas generated. In addition, through the blending of glass fibers, the bending strength is improved, and the molding shrinkage rate is reduced.

[0185] Examples 18-22, 26, and 27 are examples in which glass fibers and calcium carbonate are further blended in a composition in which Mg-M...

Embodiment 23

[0186] Example 23 is an example of replacing the Mg-M-Al hydrotalcite particles (M=Mg) used in Example 18 with Mg-M-Al hydrotalcite particles (M=Zn). Other raw materials and blending amounts The same as in Example 18. Compared with Example 18, Example 23 has a larger haze value, but it can be considered that the amount of gas generated and the blur of the glass are sufficiently reduced. Therefore, even in the case of using hydrotalcite particles with M=Zn, it can be considered that the effects of the present invention are sufficiently exhibited.

[0187] In Examples 24 and 25, Mg-M-Al hydrotalcite particles (M=Mg) were added to a resin having a viscosity different from the melt viscosity of the PPS resin used in Examples 1 to 23, 26 and 27, and mixed There are examples of glass fiber and calcium carbonate. It can be seen that the Mg-M-Al hydrotalcite particles of the present invention have the effect of reducing the amount of gas generated relative to resins of various melt vis...

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Abstract

The present invention provides a polyphenylene sulfide resin composition, which is prepared by mixing 0.1 to 30 parts by weight of (B) hydrotalcite particles with respect to 100 parts by weight of (A) polyphenylene sulfide resin. The (B) The hydrotalcite particle uses Mg-Al-based hydrotalcite as a core particle, and has a Mg-M-Al-based hydrotalcite layer on the particle surface of the core particle, wherein M is a divalent metal.

Description

Technical field [0001] The present invention relates to a polyphenylene sulfide resin composition and a molded body thereof that do not impair fluidity and mechanical strength, and generate a small amount of gas in the region below the melting point of the polyphenylene sulfide resin near 200°C. The molded article formed from the polyphenylene sulfide resin composition of the present invention is particularly suitable for lenses and optical parts having reflective surfaces. Background technique [0002] Polyphenylene sulfide resin (hereinafter sometimes referred to as PPS resin) is a special engineering plastic with high heat resistance. It has excellent mechanical strength, rigidity, flame retardancy, chemical resistance, electrical properties and dimensional stability. Therefore, injection molding is used as the center, and it is widely used in various electric and electronic parts, home appliance parts, automobile parts, and mechanical parts. [0003] In recent years, the high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K3/26G02B1/04C08L81/02
CPCC08K3/26C08L81/02G02B1/04
Inventor 西刚史儿玉和美安田昌充
Owner TORAY IND INC