CAJ | 학술논문

采用动态力学分析方法研究了一系列由聚四氢呋喃（Mn=2 000）、 4,4-二苯基甲烷二异氰酸酯以及N-甲基二乙醇胺、 1,4-丁二醇和1,2-丙二胺三种不同的扩链剂合成的TPU中的氢键作用. 发现这种氢键作用符合Arrhenius型的温度依赖性. 从弹性模量-温度关系曲线上估算出氢键解离活化能和物理交联密度.
채용동태역학분석방법연구료일계렬유취사경부남（Mn=2 000）、 4,4-이분기갑완이이청산지이급N-갑기이을순알、 1,4-정이순화1,2-병이알삼충불동적확련제합성적TPU중적경건작용. 발현저충경건작용부합Arrhenius형적온도의뢰성. 종탄성모량-온도관계곡선상고산출경건해리활화능화물리교련밀도.
A relatively high degree of physical crosslink was inferred from the superior mechanical properties of thermoplastic polyurethane elastomers(TPU). For the most part, this has been assumed due to hydrogen bonding. In this paper hydrogen bonding effects in some thermoplastic polyurethane elastomers, consisting of poly(tetramethylene oxide) of Mn=2 000, 4,4-diphenyl methane diisocyanate and extenders: N-methyl diethanol amine,1,4-butandiol and 1,2-ethylene diamine, have been studied by using dynamic mechanical analysis. The activation energies of hydrogen bonding dissociation and the physical crosslink densities have been evaluated from the elastic modulus-temperature relation of the TPU samples.