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Glass fiber-reinforced polypropylene resin composition and molded body of same

A technology of resin composition and polypropylene, which is applied in the field of glass fiber reinforced polypropylene resin composition and its molded body, can solve mold pollution, obvious uneven tiger stripes, no consideration of mold pollution resistance, Mold release property molding Appearance The molded body has high temperature exudation resistance and rigidity/impact strength, etc., and achieves the effect of excellent high temperature exudation resistance, high rigidity, and high impact strength

Inactive Publication Date: 2015-11-25
JAPAN POLYPROPYLENE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A molded body is obtained by injection molding a polypropylene-based resin composition reinforced with glass fibers in many cases, but there is a problem because the following problems are sometimes caused depending on molding conditions and the like: generation of volatile components, etc. during molding mold contamination caused by adhesion of volatile components and the like to the mold; poor mold release (property) caused by excessive adhesion of the molded body to the mold, etc.; uneven
However, mold contamination resistance during injection molding, releasability, molded appearance, high temperature exudation resistance and rigidity / impact strength of the molded body, etc. are not considered at all, and there are problems that may occur during production when the molded body is actually used any concerns

Method used

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  • Glass fiber-reinforced polypropylene resin composition and molded body of same
  • Glass fiber-reinforced polypropylene resin composition and molded body of same
  • Glass fiber-reinforced polypropylene resin composition and molded body of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-18 and comparative example 1-18

[0300] (1) Production of glass fiber reinforced polypropylene resin composition

[0301] Component A to Component E were mixed with the following additives based on the respective compositions shown in Table 1, and the resulting mixture was kneaded and pelletized under the following conditions to produce a glass fiber-reinforced polypropylene-based resin composition.

[0302] Here, 0.1 parts by weight of IRGANOX1010 manufactured by BASFSE, 0.05 parts by weight of IRGAFOS168 manufactured by BASFSE, 0.05 parts by weight of bis -2,2,6,6-tetramethyl-4-piperidinyl sebacate and 0.2 parts by weight of 2-(2'-hydroxy-3'-tert-butyl-5'-tolyl)-5 - Chlorobenzotriazoles.

[0303] Kneading machine: Twin-screw extruder "TEX30α" manufactured by TheJapan SteelWorks, LTD.

[0304] Mixing conditions: temperature = 180°C, screw revolutions = 300rpm, discharge speed = 10kg / hour

[0305] Component B-1 was fed from the middle side of the extruder. The average length of Component B-1 contained in ...

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Abstract

The present invention provides: a glass fiber-reinforced polypropylene resin composition which exhibits high rigidity and high impact strength, while having excellent mold contamination resistance and mold releasability during molding, and which provides a molded body having excellent appearance, metal corrosion resistance and high-temperature bleeding resistance; and a molded body of the glass fiber-reinforced polypropylene resin composition. The present invention relates to: a glass fiber-reinforced polypropylene resin composition which is characterized by containing 35-98.99 parts by weight of a component (A), 1-50 parts by weight of a component (B) and 0.01-15 parts by weight of a component (C) (with the total of the component (A), component (B) and component (C) being 100 parts by weight), and also containing 0.15-0.4 part by weight of a component (D) and 0.01-0.4 part by weight of a component (E) per 100 parts by weight of the total of the component (A), component (B) and component (C); and a molded body and the like of the glass fiber-reinforced polypropylene resin composition. Component A: a polypropylene resin Component B: a glass fiber Component C: a modified polyolefin Component D: an oxamide-based metal deactivation agent having an ester bond Component E: a fatty acid amide

Description

technical field [0001] The present invention relates to a glass-fiber-reinforced polypropylene-based resin composition and its molded body, and more particularly, to formability, that is, mold contamination resistance and releasability during molding, and metal corrosion resistance and its resistance to molded body. A glass fiber-reinforced polypropylene resin composition with excellent high-temperature exudability and high rigidity / high impact strength and its molded body. Background technique [0002] Glass fiber-reinforced polypropylene-based resin composition is mainly composed of polypropylene-based resin, modified polypropylene and glass fiber, and colorant, antioxidant, light-resistant stabilizer, metal deactivator are added during its production if necessary or lubricant etc. Due to excellent physical properties such as high rigidity / high impact strength, durability, and creep resistance, glass fiber-reinforced polypropylene-based resin compositions are widely used ...

Claims

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Application Information

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IPC IPC(8): C08L23/10C08J5/08C08K5/20C08K7/14C08L23/26
CPCC08L53/00C08K2201/014C08L23/10C08L23/12C08J5/043C08J5/10C08J2323/12C08J2353/00C08J2451/06C08K5/20C08K7/14C08L51/06C08L23/16
Inventor 清水久志铃木章宽
Owner JAPAN POLYPROPYLENE CORP
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