摘要
用化学气相沉积法制备的聚氯代对二甲苯膜具有优异的耐溶剂腐蚀及气体阻隔性能。文中采用X射线衍射(XRD)、扫描电镜(SEM)表征了不同基体温度下制备聚氯代对二甲苯膜的微观组织结构;采用MOCON透湿仪测试了其水汽渗透率。结果表明,随基体温度升高,膜内聚合物分子链取向度先升高、后降低,且在较高温度下聚合物苯环基团更倾向于垂直基体表面。水汽在膜内渗透速率随基体温度升高先降低、后升高,且在约30℃～45℃处达到最低值。
Poly （chloro-para-xylylene） films prepared by chemical vapor deposition method exhibit excellent resistant of solvent and good barrier properties to various gases. In this paper, X-ray diffraction（XRD） and scanning electron microscope（SEM） were used to characterize the microstructure of poly（chloro-para-xylylene）（PPXC） films prepared at different substrate temperature. Moisture permeability rate was measured by MOCON moisture permeation instrument. The results show that with the increase of substrate temperature, crystallization degree of films increases initially, decreases later. The plane of the phenyl group orient more perpendicular to the plane of the substrate during vapor deposition polymerization at the upper substrate temperature. Permeation rate of vapor in films decreases initially, then increases with the increase of substrate temperature, and the minimum is obtained at 45 ℃.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2009年第8期40-42,46,共4页
Polymer Materials Science & Engineering
关键词
聚氯代对二甲苯膜
基体温度
微观结构
渗透性
poly（chloro-para-xylylene）
substrate temperature
microstructure
moisture permeation rate
