Fibre cloth reinforced modified polyarylene sulfide sulfone composite material and preparation method thereof

Abstract

The invention discloses a fibre cloth reinforced modified polyarylene sulfide sulfone composite material and a preparation method thereof. The fibre cloth reinforced modified polyarylene sulfide sulfone composite material is characterized by comprising the following components in parts by weight: 100 parts of polyarylene sulfide sulfone resin, 10 to 100 parts of polyphenylene sulfide resin and 1 to 10 part(s) of heat stabilizer(s). The preparation method is characterized by comprising the following steps of: drying the components in an oven at a temperature of 100-150 DEG C for 6 to 8 hours, and blending the components in a highly blending machine; fusing and extruding the blended components in a twin-screw extruder at a temperature of 290 to 340 DEG C for pelleting, and drying pellets at a temperature of 100-150 DEG C for 6 to 8 hours; extruding the pellets by a single-screw extruder at a temperature of 290-340 DEG C, and sizing the pellets through a three-roller calender to obtain membranes; alternatively overlapping the membranes with fibre cloth in a sequence of A-layer to B-layer unit structures to form a fibre cloth reinforced polyarylene sulfide sulfone composite layer, wherein A layers are the polyarylene-sulfide-sulfone-based blend membranes, and B layers are the reinforced fibre cloth; and preforming hot pressing on the composite layer at a temperature of 290-360 DEG C and at a pressure of 10-40 MPa for 10 to 40 minutes, and cooling and taking out the composite layer at a temperature of 230 DEG C, thus obtaining the fibre cloth reinforced composite material.

Description

technical field [0001] The invention relates to a fiber cloth reinforced modified polyarylene sulfide sulfone composite material and a preparation method thereof, belonging to the technical field of polymer material processing. Background technique [0002] As a new type of thermoplastic amorphous special engineering plastic, polyarylene sulfide sulfone has excellent mechanical properties, electrical properties, flame retardancy, dimensional stability and corrosion resistance. Due to the above excellent properties of polyarylene sulfide sulfone, like polyphenylene sulfide, as a high-performance special engineering plastic and high-performance resin-based composite material, it has broad application prospects in the fields of automobiles, machinery, aviation, military industry, etc. , especially fiber cloth reinforced polyarylene sulfide sulfone composites have great potential for development. [0003] The preparation methods of fiber cloth reinforced resin matrix composites...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a fiber cloth reinforced modified polyarylene sulfide sulfone composite material and its preparation method in view of the deficiencies of the prior art. In the material preparation method, there is a defect that the viscosity of the matrix resin matrix is ​​too high, and it is difficult to achieve a good impregnation of the fiber cloth with the resin matrix at a relatively low temperature. The present invention introduces polyphenylene sulfide to improve the processing fluidity of polyarylene sulfide sulfone, and then realizes Method for preparing fiber cloth reinforced modified polyarylene sulfide sulfone composite material in which resin matrix is ​​well impregnated with fiber cloth at lower temperature

Images