The boron-containing polyethylene board feels like wax, has excellent low temperature resistance (low operating temperature can reach -70 ~ -100 ℃), good chemical stability, and can resist the erosion of most acids and alkalis (not resistant to acids with oxidizing properties) , insoluble in common solvents at room temperature, low water absorption, excellent electrical insulation performance; low density; good toughness (also suitable for low temperature conditions); good stretchability; good electrical and dielectric insulation; low water absorption; Low rate; good chemical stability; tensile strength.