摘要
以聚乙烯醇(PVA)作为成膜基材的可剥离去污剂,由于其固含量偏低而影响其应用。选用聚乙烯醇(PVA)作为成膜基材,加入乙酸乙烯酯与丙烯酸丁酯以及丙烯酸作为共聚单体,使用半连续乳液聚合法制备了可剥离去污乳液,可提高其固含量至30%(质量分数),黏度约为1600mPa·s。去污剂成膜后膜体的断裂伸长率可达到600%以上。同时对聚合膜进行了红外、核磁、热重以及力学性能分析,并考察了不同单体用量对聚合乳液的粒径、固含量、黏度的影响。
The peelable detergent with polyvinyl alcohol (PVA) is used as the film-forming substrate, which will affect its application due to its low solid content. In this paper, polyvinyl alcohol (PVA) is selected as the film-forming substrate. By adding vinyl acetate and butyl acrylate and acrylic acid as comonomers, a strippable decontamination emulsion was prepared by semi-continuous emulsion polymerization to increase the solid content to 30%, while the viscosity was about 1 600 mPa·s, and the detergent was formed. The elongation at break of the film can reach 600% or more. At the same time, the infrared, nuclear magnetic, thermogravimetric and mechanical properties of the polymer film were analyzed. The effects of different monomer dosages on the particle size, solid content and viscosity of the polymer emulsion were investigated.
作者
龙春华
李银涛
王善强
刘星浩
张世锋
周元林
LONG Chunhua;LI Yintao;WANG Shanqiang;LIU Xinghao;ZHANG Shifeng;ZHOU Yuanlin(State key laboratory of environmentally friendly energy materials, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China;National Key Laboratory of Nuclear and Biochemical Disaster Protection, Beijing 102205, China)
出处
《西南科技大学学报》
CAS
2019年第2期1-7,共7页
Journal of Southwest University of Science and Technology
基金
国民核生化灾害防护国家重点实验室基金项目(SKLNBC2018-16)
环境友好能源材料国家重点实验室基金项目(17FKSY0105)
关键词
聚乙烯醇
可剥离去污剂
乳液聚合
固含量
Polyvinyl alcohol
Peelable decontamination
Emulsion polymerization
Solid content
作者简介
第一作者:龙春华,女,硕士研究生;通信作者:李银涛,男,副研究员,研究方向为辐射防护材料,E-mail: liyintao@swust.edu.cn;通信作者:周元林,男,教授,研究方向为辐射防护材料,E-mail: zhouyuanlin@swust.edu.cn.
