▎ 摘　　要

NOVELTY - A gypsum expanded perlite mixed self-insulating material comprises 40-50 pts. wt. gypsum, 25-35 pts. wt. quartz sand, 10-15 pts. wt. hydrophobic expanded perlite, 0.1-0.5 pt. wt. anti-cracking fiber, 10-15 pts. wt. silicate cement, 5-10 pts. wt. polyacrylate emulsion, 5-10 pts. wt. binder, 0.3-0.5 pt. wt. water retention thickening agent, 0.5-1 pt. wt. water reducing agent, and 5-7 pts. wt. water. The hydrophobic expanded perlite is prepared by diluting hydrophobic emulsion by using ethanol solution to 3 times of the original volume, adding expanded perlite according to solid-liquid ratio of 1 g:(10-15) mL, heating at 50degrees Celsius, soaking for 0.5-1 hours, filtering, and drying the filter cake. USE - Gypsum expanded perlite mixed self-insulating material. ADVANTAGE - The gypsum expanded perlite mixed self-insulating material has excellent heat insulation and heat preservation performance, water resistance, and mechanical property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the gypsum expanded perlite mixed self-insulating material.