Analysis on crystallization behaviors of bi-axially oriented films with various processing histories

2015 Fiscal Year Final Research Report

• Project/Area Number: 25288097
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Polymer/Textile materials
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Kikutani Takeshi 東京工業大学, 理工学研究科, 教授 (70153046)
• Co-Investigator(Kenkyū-buntansha): TAKARADA Wataru 東京工業大学, 大学院理工学研究科, 助教 (50467031) ; UMEMOTO Susumu 東京工業大学, 大学院理工学研究科, 助教 (90168758)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 結晶化速度 / 分子配向 / ポリエチレンテレフタレート / 一軸配向 / 二軸配向

Outline of Final Research Achievements

Crystallization rate of oriented poly(ethylene terephthalate) (PET) was investigated using high-speed DSC analysis. Quantitative analysis method was established by applying pre-thermal treatment to remove thermal shrinkage. There was a difference between uni-axially oriented fibers and equi-biaxially oriented films on the Avrami index and the trend of crystallization rate to crystallization temperature. In addition, uni-axialli orientation had greater effect on crystallization rate than qui-biaxially orientation in same degree of orientation if that of equi-biaxially oriented film was calculated based on intrinsic birefringence of planner orientation, 0.122.

Free Research Field

高分子構造・物性 (含繊維)