▎ 摘　　要

NOVELTY - Indoor radiation-proof coating comprises 20-40 pts. wt. water-soluble wax, 10-20 pts. wt. styrene-acrylic emulsion, 50-60 pts. wt. aqueous polyurethane, 0.7-2.2 pts. wt. graphene, 3-9 pts. wt. ferrite powder, 8-16 pts. wt. barium sulfate, 3-8 pts. wt. ferric sulfate, 10-15 pts. wt. paste-like attapulgite clay, 5-12 pts. wt. diatomaceous earth, 2-5 pts. wt. defoamer and 1-4 pts. wt. pigment. USE - Indoor radiation-proof coating. ADVANTAGE - The product is lead-free and safe; has good radiation protection effect; and effectively reduces the influence of electromagnetic radiation on people's health. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of indoor radiation-proof coating comprising adding water-based polyurethane and graphene to the reactor, adding water, stirring at 60-80 degrees C for 1-2 hours, adding water-soluble wax and styrene-acrylic emulsion, stirring for 30-60 minutes to obtain mixture a1, adding ferrite powder, barium sulfate and iron sulfate, mixing at speed of 2000-3000 revolutions/minute for 10-20 minutes to obtain mixture a2, adding paste-like attapulgite clay, diatomaceous earth and defoamer, stirring for 5-10 minutes, mixing, ultrasonically treating for 10-20 minutes, adding pigment and mixing.