摘要
采用挤出流延法制备了一系列聚醚醚酮(PEEK)薄膜,通过拉力机、差示扫描量热仪、紫外分光光度计、透光率雾度仪等对PEEK薄膜的基本性质、光学性能、力学性能进行了研究。结果表明,PEEK薄膜的透光率随结晶度的升高而降低;拉伸速率对拉伸强度、断裂伸长率的影响不大,拉伸速率快,屈服强度明显提高;拉伸强度随流延辊速度的增加而提高;双向拉伸的方法可使薄膜拉伸强度达到203 MPa;增加薄膜厚度、提高结晶度的方法可以提高薄膜的抗紫外性能。
A series of polyetheretherketone(PEEK)films were prepared by an extrusion casting method,and their natural characteristics,optical properties,mechanical performance were investigated by means of tensile tester,differential scanning calorimeter,UV spectrophotometer,and light transmittance&haze meter.The results indicated that the transmittance of the PEEK films decreased with an increase of the degree of crystallinity,and there was little effect of tensile rate on tensile strength and elongation at break.The yield strength increased with an increase in tensile speed significantly.Moreover,The tensile strength trend to increase as the speed of the casting roll increased.The PEEK films achieved the tensile strength of 203 MPa after biaxial stretching,and their anti-ultraviolet performance was also improved with the increase of film thickness and degree of crystallinity.
作者
孙江华
张敏
SUN Jianghua;ZHANG Min(Hangzhou Huasu Industry Co,Ltd,Hangzhou 311411,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2020年第2期43-48,共6页
China Plastics
关键词
聚醚醚酮
薄膜
双向拉伸
力学性能
polyetheretherketone
film
biaxial stretching
mechanical property
