| abstract |
The invention provides a method for preparing a novel polyester-modified silica gel, which is characterized in that the novel polyester-modified silica gel is a block copolymer of polyester segments, polyether segments, and organosilicon segments. Ester chain forging makes silica gel maintain excellent weather resistance, electrical insulation, adhesion, heat resistance, stain resistance, gloss and color retention, and also has good wear resistance, solvent resistance, and mechanical strength. And faster curing time, effectively improve the adhesion of silicone to the substrate; through the introduction of amino active group crosslinking agent, not only the modified silicone has excellent gloss retention, adhesion, electrical insulation, heat resistance It also has the advantages of high surface hardness, bending resistance, etc., and has fast curing speed, wear resistance, and no pulverization. The structure of the block copolymer is controllable, which greatly expands the performance and application range of the polyester modified silica gel. |