反光布用聚丙烯酸酯无皂乳液的研制及应用

Preparing and application of polyacrylate emulsifier-free emulsion for reflective fabrics

以过硫酸铵(APS)为引发剂,甲基丙烯酸甲酯MMA为硬单体,丙烯酸丁酯BA和丙烯酸乙酯(EA)为软单体,丙烯酸AA为功能单体,阴-非复合可聚合乳化剂(WE-9)为乳化剂,采用预乳化法合成了一种聚丙烯酸酯无皂乳液。讨论了各单体用量和乳化剂用量对其性能的影响。结果表明,当w(BA+EA)=80%、w(MMA)=15%、w(AA)=5%和w(WE-9)=1.2%时,该无皂乳液有优良的综合性能,可满足反光布生产要求。

Using ammonium persulfate（APS） as the initiator, methyl methacrylate （MMA） as the hard monomer, butyl acrylate（BA） and ethyl acrylate（EA） as the soft monomers and acrylic acid（AA） as the functional monomer, anionic-nonionic compound reactive emulsifier （WE-9） as the emulsifier, an emulsifier-free acrylate emulsion was synthesized by pre-emulsification.The influence of monomers content and emulsifier content on properties of the emulsion was discussed.The results showed that the emulsifier-free acrylate emulsion has excellent combination properties,and can all meet the application requirements of the reflective fabric processing when the content of （EHA＋BA） is 80 wt%,and the contents of MMA,AA and WE-9 are 15 wt%,5 wt%and 1.2 wt%,respectively.