热固型聚丙烯酸酯亲水防雾涂层的制备研究

发布时间：2018-06-02 05:02

本文选题：正硅酸乙酯 + 防雾　；参考：《涂料工业》2017年01期

【摘要】：以甲基丙烯酸甲酯(MMA)、甲基丙烯酸缩水甘油酯(GMA)、异佛尔酮二异氰酸酯(IPDI)、2-丙烯酰胺-2-甲基丙磺酸(AMPS)、甲基丙烯酸羟乙酯(HEMA)、聚乙二醇(PEG-400)、3-(三甲氧基甲硅烷基)丙基-2-甲基-2-丙烯酸酯(MPS)为主要原料,采用自由基聚合合成了一种可热固化聚丙烯酸酯树脂,并以三乙烯四胺(TETA)和正硅酸乙酯(TEOS)的混合物为固化剂,制备了机械性能优、耐水性佳的亲水防雾涂层。采用FT-IR、NMR、TGA、光学接触角仪、AFM、SEM等对不同AMPS和TEOS含量的涂层的结构和性能进行了表征。结果表明:TEOS形成的微球是影响涂层透明性的主要原因;微相分离明显可赋予涂层优良的机械性能和耐水性。AMPS用量增大,涂膜亲水性增加,耐水性变差;增加TEOS的量可提升涂膜的硬度、附着力、耐冲击性和热稳定性,但透明性下降。综合考虑,AMPS添加量为8%、TEOS量为6%时性能最佳。
[Abstract]:In this paper, methyl methacrylate (MMA), glycidyl methacrylate (glycidyl methacrylate), isophorone diisocyanate (IPDIA), 2-acrylamide (2-methylpropyl) sulfonic acid (AMPS), hydroxyethyl methacrylate (Hema), polyethylene glycol (PEG-400) -3-( trimethoxymethylsilyl) propyl-2-methyl-2- Polyacrylate (MPS) is the main raw material. A heat-curable polyacrylate resin was synthesized by free radical polymerization. A hydrophilic anti-fogging coating with excellent mechanical properties and good water resistance was prepared with the mixture of triethylenetetramine (TETAA) and tetraethyl orthosilicate (TEOS) as curing agent. The structure and properties of the coatings with different AMPS and TEOS contents were characterized by FT-IRN NMR-TGA and optical contact angle analyzer (AFM-SEM). The results showed that the microspheres formed by 1: TEOS were the main factors affecting the transparency of the coating, and the microphase separation could obviously give the coating excellent mechanical properties and the increase of the amount of water resistance. The hydrophilicity of the coating film was increased, and the water resistance of the coating became worse. Increasing the amount of TEOS can improve the hardness, adhesion, impact resistance and thermal stability of the film, but the transparency decreased. The best performance is when the amps is 8 and TEOS is 6.
【作者单位】：江南大学化学与材料工程学院食品胶体与生物技术教育部重点实验室;
【分类号】：TB306

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