舞蹈器材用改性PU胶粘剂的耐老化性能测试分析  

Test and analysis of viscosity and aging resistance of modified PU adhesive for dance equipment

作　　者：赵欣莹[1] 何书凡 崔昌水[2] ZHAO Xinying;HE Shufan;CUI Changshui(Xi’an Peihua University,Xi’an 710199,China;Xi’an International University,Xi’an 710077,China)

机构地区：[1]西安培华学院,陕西西安710199 [2]西安外事学院,陕西西安710077

出　　处：《粘接》2024年第2期5-8,共4页Adhesion

基　　金：陕西省“十四五”教育科学规划2023年度课题(项目编号:SGH23Y2911)。

摘　　要：针对聚氨酯(PU)胶粘剂在使用与存储环节较容易出现的老化问题,研制改性剂TiO_(2)-TDI粒子,其原料为甲苯2,4-二异氰酸酯(TDI)与抗氧剂2246、纳米二氧化钛(TiO_(2),金红石型),通过对二氧化钛、TiO_(2)-TDI粒子结构的热失重分析(TGA)、傅里叶变换红外光谱(FTIR)、紫外-可见漫反射(UV-vis)等加以表征。结果显示,在二氧化钛表面,通过化学键作用与TDI成功键合,完成了该改性粒子制备。此粒子对可见光、紫外线有着更强水平的吸收能力,通过化学法成功完成抗热氧化、光氧化的改性剂,可以使得PU胶粘剂耐老化性能得到显著改善,更好地应用于舞蹈器材中。In order to solve the aging problem of polyurethane(PU)adhesive in the use and storage process,the modifier TiO_(2)-TDI particles were developed,and the raw materials were toluene 2,4-diisocyanate(TDI),antioxidant 2246 and nano titanium dioxide(TiO_(2),rutile type),which were characterized by thermogravimetric analysis(TGA),Fourier transform infrared spectroscopy(FTIR)and ultraviolet-visible diffuse reflectance(UV-vis)of the structure of titanium dioxide and TiO_(2)-TDI particles.The results showed that the modified particles were successfully bonded to TDI on the surface of titanium dioxide by chemical bonding.This particle had a stronger level of absorption capacity for visible light and ultraviolet rays,and the modifier of anti-thermal oxidation and photo-oxidation could be successfully completed by chemical methods,which significantly improved the aging resistance of PU adhesive and was better used in dance equipment.

关 键 词：耐老化 舞蹈器材 聚氨酯 胶粘剂 

分 类 号：TQ433.4[化学工程]