The utility model belongs to the technical field of PVC cable materials, and particularly relates to a high flame-retardant and thermally stable modified PVC material and its preparation method. The preparation process includes: uniformly mixing rosin derivatives, polymer monomers, cycloalkanes and organic ammonium salts to prepare bio-based resin liquid; blending polyvinyl chloride matrix polymer, bio-based resin liquid and curing agent proportionally to obtain modified resin; feeding the modified resin into a twin-screw extruder for melt blending and granulation to produce the target material. Through bio-based resin and a unique curing mode, a special lattice structure is constructed inside the PVC material, optimizing flame retardancy and thermal stability while retaining good flexibility.
Country Code: CN
Application Number: CN202410835314.7
