Metal member-polyarylene sulfide member composite and method for its production

A metal member-polyarylene sulfide resin member composite which comprises a metal member and a polyarylene sulfide resin member and is obtained by injection molded direct joining, wherein the polyarylene sulfide resin member is formed by injection molding of a polyarylene sulfide composition which satisfies all of the following (1) to (3):

• (1);
• in differential scanning calorimetry (DSC) during cooling from 330° C. to 150° C. at a rate of 20° C./min after heating from 23° C. to 330° C. and heating at 330° C. for 5 minutes, the polyarylene sulfide composition has a melt crystallization peak temperature of at least 200° C. and at most 230° C.,
• (2);
• the polyarylene sulfide resin composition has a melt flow rate (MFR) of at least 20 g/10 minutes and at most 150 g/10 minutes, as measured at 315° C. in accordance with ISO 1133, and
• (3);
• the polyarylene sulfide resin composition comprises 100 parts by weight of a polyarylene sulfide resin (A), from 5 to 25 parts by weight of at least one modified ethylene copolymer (B) selected from the group consisting of a copolymer of ethylene, an alkyl ester of an α,β-unsaturated carboxylic acid and maleic anhydride, a copolymer of ethylene and a glycidyl ester of an α,β-unsaturated carboxylic acid, a copolymer of ethylene, a glycidyl ester of an α,β-unsaturated carboxylic acid and vinyl acetate, a copolymer of ethylene, a glycidyl ester of an α,β-unsaturated carboxylic acid and an alkyl ester of an α,β-unsaturated carboxylic acid, and a modified copolymer of ethylene and an α-olefin grafted with maleic anhydride, and from 10 to 120 parts by weight of glass fiber (C).

A metal member-polyarylene sulfide resin member composite which comprises a metal member and a polyarylene sulfide resin member and is obtained by injection molded direct joining, wherein the polyarylene sulfide resin member is formed by injection molding of a polyarylene sulfide composition which satisfies all of the following (1) to (4):

• (1);
• in differential scanning calorimetry (DSC) during cooling from 330° C. to 150° C. at a rate of 20° C./min after heating from 23° C. to 330° C. and heating at 330° C. for 5 minutes, the polyarylene sulfide composition has a melt crystallization peak temperature of at least 200° C. and at most 230° C.,
• (2);
• the polyarylene sulfide resin composition has a melt flow rate (MFR) of at least 20 g/10 minutes and at most 150 g/10 minutes, as measured at 315° C. in accordance with ISO 1133, and
• (3);
• the polyarylene sulfide resin composition comprises 100 parts by weight of a polyarylene sulfide resin (A), from 5 to 25 parts by weight of at least one modified ethylene copolymer (B) selected from the group consisting of a copolymer of ethylene, an alkyl ester of an α,β-unsaturated carboxylic acid and maleic anhydride, a copolymer of ethylene and a glycidyl ester of an α,β-unsaturated carboxylic acid, a copolymer of ethylene, a glycidyl ester of an α,β-unsaturated carboxylic acid and vinyl acetate, a copolymer of ethylene, a glycidyl ester of an α,β-unsaturated carboxylic acid and an alkyl ester of an α,β-unsaturated carboxylic acid, and a modified copolymer of ethylene and an α-olefin grafted with maleic anhydride, and from 10 to 120 parts by weight of glass fiber (C).
• (4) the polyarylene sulfide resin composition further comprises glass flake (F).