陕西科技大学学报（自然科学版）Issue(6)：95-98,104,5.
改性热塑性聚氨酯耐热性提高的研究
Research on polyurethane elastomer to improve heat resistance
摘要
Abstract
In order to improve the heat resistance of thermoplastic polyurethane elastomer (TPU ) ,composite material M UF/TiO2-TPU was achieved by adding nano TiO 2 powder (M UF/TiO2 ) which was coated by melamine modified urea-formaldehyde resin to the TPU . The chemical structure ,crystallinity ,thermal properties and mechanical properties of com-posite materials were characterized and determined by FT-IR ,WXRD ,SEM ,DSC ,TGA respectively .The results showed that the crystallization of TPU changed a little when M UF/TiO2 was added .The grain size was slightly reduced ,while the heat resistance was improved greatly .The elongation and tensile strength of modified TPU first increased and then de-creased .关键词
TPU/三聚氰胺改性脲醛树脂/TiO2/耐热性Key words
TPU/melamine modified urea-formaldehyde resin/TiO2/heat resistance分类
化学化工引用本文复制引用
张敏,张若琳,张宝峰,顾利民,邱建辉..改性热塑性聚氨酯耐热性提高的研究[J].陕西科技大学学报（自然科学版）,2013,(6):95-98,104,5.基金项目
国家自然科学基金项目（21144008）；陕西科技大学博士科研启动基金项目（BJ09-08）；陕西科技大学科研创新团队计划项目 （）
