中国塑料2025，Vol.39Issue(11)：1-6,6.DOI:10.19491/j.issn.1001-9278.2025.11.001
单轴拉伸乙烯-四氟乙烯共聚物薄膜的制备及性能研究
Preparation and properties of uniaxially stretched poly(ethylene-co-tetrafluoroethylene)films
安立红 1屠毅 1张桂珍1
作者信息
- 1. 华南理工大学机械与汽车工程学院,广东省高分子先进制造技术及装备重点实验室,聚合物新型成型装备国家工程研究中心,广州 510641
- 折叠
摘要
Abstract
Uniaxially stretched poly(ethylene-co-tetrafluoroethylene)(ETFE)films were prepared to investigate the im-pact of processing parameters on their properties.The crystallinity,mechanical performance,and optical transparency of the films were characterized as functions of stretching temperature,stretching ratio,and heat-setting temperature.The results indicated that the stretching process promoted stress-induced crystallization,with the stretching ratio being the pri-mary factor governing the increase in crystallinity,while the stretching temperature had a comparatively minor influence.The optimum stretching conditions,a ratio of 3 and a temperature of 120℃,produced a film with a crystallinity degree of 35.6%,tensile strength of 106.4 MPa,longitudinal tear strength that was 1.9 times higher than the pristine film,and 90.1%transmittance.Heat-setting at 220℃for 5 minutes was determined to be optimal,resulting in additional in-crements in crystallinity degree(3.8%)and tensile strength(9.3 MPa).Further extension of the heat-setting duration proved ineffective in enhancing the film properties.关键词
乙烯-四氟乙烯共聚物/单轴拉伸/透光性Key words
poly(ethylene-tetrafluoroethylene)/uniaxial stretching/translucency分类
化学工程引用本文复制引用
安立红,屠毅,张桂珍..单轴拉伸乙烯-四氟乙烯共聚物薄膜的制备及性能研究[J].中国塑料,2025,39(11):1-6,6.
