木器底漆用双重自交联丙烯酸酯乳液的制备研究  

Preparation of Double Self- Crosslinking Acrylate Emulsion for Wood Primer

作　　者：钱权洲 乔永洛[1] 魏健[1] 申亮[1] 

机构地区：[1]江西科技师范大学化学化工学院涂料与高分子系,南昌330013

出　　处：《涂料工业》2016年第3期27-31,共5页Paint & Coatings Industry

基　　金：国家自然基金项目;项目编号:51263011

摘　　要：以甲基丙烯酸甲酯(MMA)和丙烯酸丁酯(BA)为主单体,甲基丙烯酸(MAA)和γ-甲基丙烯酰氧基丙基三甲氧基硅烷(A-174)为功能单体,采用反应型乳化剂NRS-10,通过预乳化半连续乳液聚合工艺合成了自交联丙烯酸酯乳液,并通过添加锌铵交联剂,合成了性能优异的木器底漆用自交联丙烯酸酯乳液。主要考察了乳液Tg,MAA、过硫酸铵(APS)、NRS-10、A-174和锌铵交联剂用量对乳液及其涂膜性能的影响,通过实验得出:当乳液设计Tg为40℃,MAA用量为8%(以单体的总质量计,下同),APS用量为0.3%,NRS-10用量为2.5%,A-174用量为2%,且n(—COO-)∶n(Zn2+)为8∶1时,所制备的自交联丙烯酸酯乳液配制成木器底漆,涂膜具有硬度高、易打磨、耐水性优异等特点。A self-crosslinking acrylate emulsion was synthesized via pre-emulsification semi-continuous emulsion polymerization process by using methyl methacrylate （MMA） and butyl acrylate （BA） as the main monomers, methacrylic acid （MAA） and T- methacrylo- xypropyltrimethoxysilane （A- 174 ） as functional monomers and NRS- 10 as reactive emulsifier, and then was mixed with zinc ammonium crosslinking agent to form a high perform- ance self-crosslinking emulsion for wood primer. The influence of the Tg of emulsion, the dos- age of MAA, APS, NRS-10, A-174 and zinc ammonium crosslinking agent on properties of emulsion and film therefrom was investigated. The results showed that the wood primer derived from self-crosslinking acrylate emulsion exhibited high hardness, easy-to-rub and good water resistance when the Tg of the emulsion was 40 ℃ , the amount of MAA was 8%, the amount of APS was 0. 3%, the amount of NRS-10 was 2. 5%, the amount of A-174 was 2%, the molar ratio of carboxyl and zinc ions was 8 ：1.property

关 键 词：自交联 丙烯酸酯乳液 锌铵交联剂 木器底漆 打磨性 

分 类 号：TQ635.3[化学工程—精细化工]