▎ 摘　　要

NOVELTY - Silicone foam sheet comprises 80-100 pts. wt. silicone resin composition and 40-50 pts. wt. modified chitosan sol solution. USE - Used as silicone foam sheet. ADVANTAGE - The sheet has low communication porosity and good mechanical performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of silicone foam sheet, comprising (i) coating the silicone resin composition on the lower polytetrafluoroethylene film on an automatic coating machine, (ii) coating the modified chitosan sol solution on the silicone resin composition, (iii) covering the upper polytetrafluoroethylene film on the surface of the modified chitosan sol solution, (iv) thermally curing the film layer for 1-2 hours, (v) removing the lower polytetrafluoroethylene film and the upper polytetrafluoroethylene film to obtain a cured intermediate, and (vi) uniformly coating the silicone resin composition on the surface of the cured intermediate, and curing for 2-4 hours.