中国塑料2017，Vol.31Issue(1)：43-48,6.DOI:10.19491/j.issn.1001-9278.2017.01.008
熔融温度对聚偏氟乙烯等温结晶行为的影响
Effects of Melting Temperature on Isothermal Crystallization Behavior of Poly(vinylidene fluoride)
摘要
Abstract
A poly(vinylidene fluoride)(PVDF)film was prepared by a solvent-casting method,and its crystalline structures after a isothermally crystallizing treatment was characterized by Fourier-transform infrared spectroscopy and X-ray powder diffraction.The effect of melting temperature on the isothermal crystallization behavior of this film was investigated by a cycling melt-crystallization technique.The results indicated that,after the isothermally crystallizing treatment,onlyα-phase crystals were formed in the film,and its equilibrium melting point of PVDF is around 1 9 7 ℃.The effect of melting temperature on the isothermal crystallization behavior of the film was not significant above the equilibrium melting point.However,when the melting temperature was lower than the equilibrium melting point,the number of spherulites increased with an increase of melting temperature,but its size decreased.关键词
聚偏氟乙烯/平衡熔点/等温结晶/熔融温度Key words
poly(vinylidene fluoride)/equilibrium melting point/isothermal crystallization/melting temperature分类
化学化工引用本文复制引用
陈业煌,林雪婷,包好,李纯清,龚兴厚..熔融温度对聚偏氟乙烯等温结晶行为的影响[J].中国塑料,2017,31(1):43-48,6.基金项目
国家自然科学基金项目 （）
