表面技术2017，Vol.46Issue(7)：150-155,6.DOI:10.16490/j.cnki.issn.1001-3660.2017.07.025
核壳乳液聚合制备阳离子型含氟苯丙乳液的研究
Preparation of Cationic Fluorinated Poly-styrene-acrylic Latex by Core-Shell Emulsion Polymerization
罗源军 1罗源兵 2刘波 1吕太勇 1陈立义1
作者信息
- 1. 中昊晨光化工研究院有限公司,四川 富顺 643201
- 2. 重庆大学 材料科学与工程学院,重庆 400045
- 折叠
摘要
Abstract
The work aims to synthesize a cationic fluorinated poly-styrene-acrylic latex, which can be used in cotton fabric finishing. With 2,2'-azobis(2-methylpropionamidine)dihydrochloride as initiator, cationic fluorinated poly-styrene-acrylic latex was synthesized from perfluoroalkylethyl acrylate, butyl acrylate, methyl methacrylate, styrene and n-hydroxymethyl acryla-mide by semi-continuous seed emulsion polymerization . The final copolymerization emulsion was characterized with FT-IR, GPC, DSC and LPSA. Hydrophobicity of the latex film varied slightly with core-shell ratio since organo-fluorine chain segment could automatically migrate to the surface. However, its glass transition temperature rose slightly with the increase of hard mo-nomer content. In addition, as initiator dosage increased, monomer conversion rate and weight-average molecular weight in-creased, and coagulation rate decreased. The FT-IR test showed that fluorocarbon group and other functional groups were suc-cessfully incorporated into copolymers. Furthermore, average diameter of narrowly distributed emulsion measured by laser par-ticle analyzer was 0.196μm. The finished cotton fabric had a smooth and flat surface, and was tested to show 95 points in wa-ter-proofing and grade 6 in oil-repellency. Reaction process of cationic fluorinated poly-styrene-acrylic latex prepared by core-shell emulsion polymerization is stable. After being processed with it, the cotton fabric surface exhibits excellent water- proof and oil-repellent properties.关键词
含氟苯丙乳液/核壳乳液聚合/织物整理剂/防水拒油/棉织物Key words
fluorinated poly-styrene-acrylic/core-shell emulsion polymerization/textile finishing agent/waterproof and oil-repellent/cotton fabric分类
化学化工引用本文复制引用
罗源军,罗源兵,刘波,吕太勇,陈立义..核壳乳液聚合制备阳离子型含氟苯丙乳液的研究[J].表面技术,2017,46(7):150-155,6.
