POLYPHENYLENE SULPHIDE FIBERGLASS COMPOSITES AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2022 - IPC C08J5/08 C03C25/24 

FIELD: chemistry.

SUBSTANCE: present invention relates to a group of inventions: polymer compositions based on polyphenylene sulphide and glass fibre, finished with an organic finishing agent, intended as structural polymer materials, and a method of producing said polymer compositions. In these compositions, the finishing agent used is an organic compound - 4,4'-dichlorodiphenylsulphone in a volatile organic solvent acetone. Finishing agent amount to glass fibre corresponds to 1–4 wt.%. Amount of finished glass fibre in the composite material is 20 wt.%. This method involves finishing glass fibre by applying a finishing agent from a solution, followed by drying. Finishing agent is applied from solutions with weight fraction of 0.32–1.25% in an organic highly volatile solvent and stepwise temperature rise is carried out with simultaneous distillation of the solvent according to the mode: 20 °C for 30 min; 33°C for 25 min; 43°C for 35 min; 55°C for 40 min; 70°C for 25 min.

EFFECT: development of composite materials with improved physical-mechanical and rheological properties based on polyphenylene sulphide matrix polymer reinforced with coated glass fibre filler.

2 cl, 1 tbl, 7 ex