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Flame retardant thermoplastic resin composition and mould product produced therefrom

A thermoplastic resin and composition technology, applied in the field of flame retardant thermoplastic resin composition, can solve problems such as molding equipment and mold corrosion

Inactive Publication Date: 2009-11-04
CHEIL IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition also has corrosion problems to molding equipment and molds

Method used

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  • Flame retardant thermoplastic resin composition and mould product produced therefrom
  • Flame retardant thermoplastic resin composition and mould product produced therefrom
  • Flame retardant thermoplastic resin composition and mould product produced therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7 and comparative example 1～7

[0174] The resin compositions according to Examples 1 to 7 and Comparative Examples 1 to 7 were prepared by using the compositions as in Tables 1 to 3 below using the aforementioned ingredients.

[0175] The resin composition was prepared by a manufacturing method in which various ingredients according to the compositions in Tables 1 to 3 below were mixed in a general mixer, and the mixture was placed in a twin-screw extruder. The mixture was made into a granular resin composition by an extruder. Then, the composition was made into a sample for performance evaluation by using a 10 oz molding apparatus at 330°C.

experiment example

[0177] The samples were kept in 50% relative humidity at 23° C. for 48 hours, and then the relevant properties were measured according to ASTM standards. The relative flexural strength and flexural modulus were determined on molded samples according to ASTM D790, and the relative notched Izod impact strength (1 / 8") was determined according to ASTM D256.

[0178] According to the standard of ASTM D-648, the relative heat resistance is evaluated for 1 / 4 inch (6.4mm) thick samples by placing them in oil heated at a rate of 120°C / hour, then pressurized at 1.86MPa and The temperature at which it was bent to about 0.254 mm was measured.

[0179] The flame retardancy at a thickness of 0.8 mm was determined according to the UL 94VB flame retardancy standard.

[0180] Gas evolution was measured by measuring weight loss by heating the sample from 30°C to 320°C at a heating rate of 20°C / min using TGA (TA Instruments, TGA Q5000), and then maintaining at 320°C for 30 minutes.

[0181] [T...

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Abstract

Disclosed is a flame retardant thermoplastic resin composition and a mould product produced therefrom, the flame retardant thermoplastic resin composition includes about 100 parts by weight of a mixed resin (A) including about 10 to about 90 wt.% of an aromatic polyamide resin (A-1) and about 10 to about 90 wt.% of a polyphenylene sulfide resin (A-2), about 0.5 to about 30 parts by weight of a phosphinic acid metal salt flame retardant (B), and about 10 to about 100 parts by weight of a filler (C).

Description

technical field [0001] The invention relates to a flame-retardant thermoplastic resin composition. Background technique [0002] Recently, a thermoplastic resin having high heat resistance and chemical resistance is required as a partial material for electronic device parts, automobile device parts, chemical device parts, and the like. [0003] Aramid resins have these characteristics but have poor flame retardancy. Therefore, it includes a halogen-containing flame retardant and satisfies V-0 characteristics according to the VB standard of UL-94. [0004] However, since new restrictions on hazardous materials have been proposed such as the Restriction of Hazardous Substances Directive (ROHS) and the Prohibition on Certain Hazardous Substances in Consumer Products (POHS), this A halogen-containing compound is also restricted for use in electronic / electrical device components. [0005] Accordingly, US Patent Publication 2007-0054992 discloses a polyamide resin composition i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L81/02C08K5/5317
CPCC08K5/5313C08L81/02C08K3/0033C08L77/00C08L77/06C08K3/013C08L81/00C08L2666/20C08K5/49C08K3/00
Inventor 李垠周洪彰敏
Owner CHEIL IND INC
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