| abstract |
[Problem] It is an object to obtain a polyphenylene sulfide resin composition that exhibits excellent initial toughness and toughness after long-term high-temperature treatment, typified by tensile elongation at break after dry heat treatment, without impairing mechanical strength, chemical resistance, and electrical insulation. . [Solution Means] Based on 100 parts by weight of polyphenylene sulfide resin, 0.01 to 10 parts by weight of an organosilane compound and 0.01 to 5 parts by weight of a metal oxo acid salt of phosphorus, using an ASTM No. 4 dumbbell piece obtained by injection molding, 200 After treatment for 500 hours at ° C, it is characterized in that the tensile elongation at break measured according to ASTM-D638 is 10% or more under the conditions of a tensile speed of 10 mm / min and an ambient temperature of 23 ° C. |