光学树脂表面划痕修复涂层的制备

采用甲基三乙氧基硅烷（MTEOS）和正硅酸乙酯（TEOS）为原料，制备了光学树脂表面划痕修复涂层。研究了原料配比和助剂用量对涂料修复能力的影响。结果表明，当nMTEOS：nTEOS值为1时，该涂料对光学树脂表面的缺陷可取得较好的修复效果。采用甲醇、乙醇、1，2-二丙醇为混合溶剂时，甲醇：乙醇：1，2-二丙醇（质量比）为3：6：4时效果最好。有机锡379用量为0．05％质量分数时即可取得良好的效果。有机硅修复涂层可以显著改善光学塑料的受损表面，使划痕消失，涂层表面均一平整。

Preparation of Repairing Coating of Scratched Optical Resins

The repairing coating of scratched optical resins was prepared with methyl triethoxysilane （MTEOS） and tetraethyl orthosilicate （TEOS） as raw materials. The preferable repairing coating was prepared when nMTEOS： nTEOS= 1, the proportion of mixed solvents affected repairing perfomance of the coating greatly, and the best mass proportion of methanol/ethanol/l, 3-propanediol was 3 ： 6 ： 4. Thesolidify of the coating was accelerated with organic tin 379, and the best content of which was 0.05 % （mass ratio）. The surface of scratched optical resins can tbe repaired with organosilicon coating effectively.