交联对硅烷偶联剂改性TiO_(2)/聚丙烯酸复鞣剂性能的影响

Effect of Cross-linking on Properties of Silane Coupling Agent Modified TiO_(2)/Polyacrylic Resin Retanning Agent

光催化材料TiO_(2)因具有降解甲醛等有机物的特性而受到广泛研究。采用球磨法制备了柠檬酸、乙醛酸、三乙烯四胺化学交联硅烷偶联剂改性TiO_(2)/聚丙烯酸复合材料。结果表明,交联可有效改善复合材料的综合性能,乙醛酸可提升分散性,三乙烯四胺可提升稳定性和甲醛清除性能,其中三乙烯四胺的甲醛清除率可达94.63%。交联硅烷偶联剂改性TiO_(2)/聚丙烯酸复合材料还可提升成品革物理机械性能和降低甲醛含量,物理机械性能可提升5%~10%,成品革中甲醛含量可降低至16 ppm以下。

The photocatalytic material TiO_(2) has the characteristics of degrading organic matter such as formaldehyde,so it has been extensively studied.The citric acid,glyoxylic acid,and triethylenetetramine chemically cross-linked silane coupling agent modified TiO_(2)/polyacrylic resin composite materials were prepared by ball milling.The research results showed that cross-linking can effectively improve the overall performance of composite materials,glyoxylic acid can improve dispersibility,triethylenetetramine can improve stability and formaldehyde removal performance,and the formaldehyde removal rate of triethylenetetramine can reach 94.63%.The silane coupling agent modified TiO_(2)/polyacrylic resin composite material can also improve the physical mechanical properties of leather and reduce the formaldehyde content.The physical mechanical properties can be increased by 5%-10%,and the formaldehyde content in leather can be reduced to below 16 ppm.