PMTMS/TiO_(2)复合材料的制备及其性能表征  

Preparation of PMTMS/TiO_(2)composite material and its performance characterization

作　　者：张婉萍 关馨 郑时莲 张冬梅 张子嘉 张倩洁 Wanping Zhang;Xin Guan;Shilian Zheng;Dongmei Zhang;Zijia Zhang;Qianjie Zhang(Shanghai Institute of Technology,Shanghai 201418,China)

机构地区：[1]上海应用技术大学,上海201418

出　　处：《日用化学工业（中英文）》2024年第10期1227-1234,共8页China Surfactant Detergent & Cosmetics

摘　　要：为了减轻二氧化钛(TiO_(2))在有机体系中的聚集行为,同时提升复合载体的合成效率,采用甲基三甲氧基硅烷(MTMS)对TiO_(2)进行包覆。通过FTIR、TGA、SEM、EDS、DLS、接触角测试、亲油化度测试的表征方法,对包覆后的PMTMS/TiO_(2)复合材料表面形貌与性质进行讨论,最后对PMTMS/TiO_(2)复合材料的包覆机理进行总结阐述。结果表明,硅钛(MTMS/TiO_(2))质量比为3∶1,催化剂质量分数为1.9%,反应时间为5 h的条件下,PMTMS/TiO_(2)复合材料的聚集行为大大减轻,具有良好的疏水性能,且TiO_(2)粒子在有机溶剂中的分散性与相容性得到显著提高。To mitigate the aggregation behavior of TiO_(2)in organic system and also to enhance the synthesis efficiency of the composite carrier,methyltrimethoxysilane(MTMS)was used to coat TiO_(2).The surface morphology and properties of the coated PMTMS/TiO_(2)composites were characterized by the methods of FTIR,TGA,SEM,EDS,DLS,contact angle test,and lipophilicity test.The coating mechanism for PMTMS/TiO_(2)composites was summarized and elaborated.The results showed that the aggregation of PMTMS/TiO_(2)composites was greatly reduced when the synthesis condition was as follows:The mass ratio of MTMS to TiO_(2)was 3∶1,the mass fraction of catalyst was 1.9%and the reaction time was 5 h.The PMTMS/TiO_(2)composites thus prepared had good hydrophobicity.Therefore,by this way,the dispersion and compatibility of TiO_(2)particles in organic solvents were significantly improved.

关 键 词：二氧化钛 聚硅氧烷 包覆 

分 类 号：TQ658[化学工程—精细化工]