有机硅耐磨透明涂料的制备条件优化  

Optimizing the fabrication of abrasion-resistant and transparent organosilicon coating

作　　者：何涛[1] 詹学贵[2] 邵月刚[2] 高长有[1] 

机构地区：[1]浙江大学高分子系教育部高分子合成与功能构造重点实验室,杭州310027 [2]浙江新安化工集团股份有限公司,浙江建德311600

出　　处：《中国科技论文在线》2007年第5期363-368,共6页

基　　金：杭州市科技发展计划重大项目(2003111A03)

摘　　要：本文研制一种聚甲基丙烯酸甲酯(PMMA)表面增硬用双组分有机硅硬质涂料。以正硅酸乙酯(TEOS)和甲基三甲氧基硅烷(MTMS)为主要原料,适当添加γ-缩水甘油醚氧丙基三甲氧基硅烷(KH-560)、γ-甲基丙烯酰氧丙基三甲氧基硅烷(KH-570)、流平剂、溶剂异丙醇,作为组分A;在一定量的盐酸水溶液中加入适量的固化剂作为组分B。组分A、B室温下存储期可达6个月。将A、B两组分按一定比例混合,即得耐磨涂料。本文讨论TEOS和MTMS含量、溶剂种类、水含量、HCl含量及各种助剂含量对于涂料性能的影响。最终制得的有机硅涂料固含量约为13%,固化速度快,硬度可达6H,对有机玻璃(PMMA)的附着力可达1级,透光率达94.8%。A double group abrasion-resistant organosilicon coating is designed and prepared,which can be used to enhance the surface scratch-resistance of PMMA.Group A contains the major component of tetraethoxy silane （TEOS） and methyltrimethoxy silane （MTMS）,supplying withγ-glycidoxypropyltrimethoxy silane （KH-560）,γ-methacryloxypropyltrimethoxy silane （KH-570） and isopropyl alcohol.Group B contains hydrochloride,water and condensation catalyst.Group A and group B can be preserved for 6 months without any change at room temperature.The coating is prepared through mixing A and B at a proper ratio.The influence of the ratio between TEOS and MTMS,kinds of solvents,contents of water,hydrochloride and additives on the resulting coating and its properties are discussed in this paper.The final coating has 13% solid content.A transparent film on PMMA is made by using dip-coating technique.The coating on PMMA has a pencil hardness as high as 6H,with an adhesive property of grade 1 and transmittance of 94.8%.

关 键 词：材料学 有机硅 耐磨涂层 有机玻璃 透明 

分 类 号：TQ637[化学工程—精细化工]