增塑剂的种类和用量对聚合物PVC敏感膜拉伸性能的影响
Influence of types and amounts of plasticizers on the tensile properties of polymer PVC sensitive films
王小龙 1吕桂芳 2伍林 2石从云 2杜晨飞 2李昊 2王建东1
作者信息
- 1. 深圳市希莱恒医用电子有限公司,广东深圳 518107
- 2. 武汉科技大学化学与化工学院,湖北武汉 430081
- 折叠
摘要
考察了 4种增塑剂邻苯二甲酸二辛酯(DOP)、邻苯二甲酸二丁酯(DBP)、邻硝基苯辛基醚(o-NPOE)和癸二酸二辛酯(DOS)的用量对离子选择性电极中的聚合物PVC敏感膜拉伸性能的影响.结果表明:①随着增塑剂用量的增加,敏感膜的拉伸强度下降,降幅先大后小.当增塑剂与PVC质量比为1.0:1时,DOP/PVC敏感膜拉伸强度最大,DOS/PVC和o-NPOE/PVC敏感膜拉伸强度接近,比DOP/PVC敏感膜小,由烷基链短的增塑剂DBP制备的敏感膜的拉伸强度最小;当增塑剂与PVC质量比为3.0:1时,4种敏感膜的拉伸强度比较接近.②随着增塑剂用量的增加,敏感膜的断裂伸长率都上升.当增塑剂与PVC质量比为1.0:1时,DBP/PVC敏感膜的断裂伸长率最高,DOS/PVC敏感膜次之,DOP/PVC敏感膜比前两者小,o-NPOE/PVC敏感膜最小;当增塑剂与PVC质量比为3.0∶1时,4种增塑剂/PVC敏感膜的断裂伸长率顺序为DBP/PVC≈ DOS/PVC＞DOP/PVC＞o-NPOE/PVC.③o-NPOE与PVC有相对良好的相容性.本研究结果为后期电极性能研究提供数据支持.
Abstract
The effects of the dosage of four plasticizers,namely dioctyl phthalate(DOP),dibutyl phthalate(DBP),o-nitrophenyl octyl ether(o-NPOE),and dioctyl sebacate(DOS),on the tensile properties of polymer PVC sensitive films in ion-selective electrodes were investigated.The results showed that:① With the increase in plasticizer content,the tensile strength of the sensitive film decreased,and the decrease was first large and then small.When the mass ratio of plasticizer to PVC was 1.0:1,the ten-sile strength of the DOP/PVC sensitive film was the highest,and the tensile strengths of the DOS/PVC and o-NPOE/PVC sensitive films were close,smaller than that of the DOP/PVC sensitive film.The ten-sile strength of the sensitive film prepared by the plasticizer DBP which had a short alkyl chain was the lowest.When the mass ratio of plasticizer to PVC was 3.0∶1,the tensile strengths of the four sensitive films was relatively close.② With the increase in plasticizer content,the elongation at break of the sensi-tive film increases.When the mass ratio of plasticizer to PVC was 1.0:1,the elongation at break of DBP/PVC sensitive film was the highest,followed by that of DOS/PVC sensitive film,the elongation at break of DOP/PVC sensitive film was smaller than that of the first two,and that of o-NPOE/PVC sensi-tive film was the smallest.When the mass ratio of plasticizers to PVC was 3.0:1,the order of elongation at break of the four plasticizer sensitive films was DBP/PVC ≈ DOS/PVC＞DOP/PVC＞o-NPOE/PVC.③ The plasticizer o-NPOE had relatively good compatibility with PVC.The results of this study provide data support for the later study of electrode performance.
关键词
增塑剂/聚合物敏感膜/聚氯乙烯/拉伸强度/断裂伸长率Key words
plasticizer/polymer sensitive film/polyvinyl chloride/tensile strength/elongation at break引用本文复制引用
出版年
2024
NETL
NSTL
万方数据