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改性聚乙烯醇内墙涂料的研制 总被引:9,自引:0,他引:9
介绍了用硼酸对聚乙烯醇进行了改性,使其耐水性得到提高,对影响改性聚乙烯醇的各种因素进行了深入的讨论。同时介绍了改性聚乙烯醇内墙涂料的研制配方、工艺及其性能与特点。 相似文献
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Acrylate latex modified by vinyl triisopropoxy silane (C-1706) was synthesized by seeded emulsion polymerization with anionic emulsifier sodium dodecyl sulphonate(SDS) and nonionic emulsifier OP-10 as the multiple emulsifiers at (78±2) ℃. The effects of different factors, such as the emulsifier, C-1706 monomer and its feeding manner on the properties of acrylate latex modified by C-1706 were investigated. The particle size distribution and the structure, the configuration, the weather durability and stain resistance of copolymer latex were characterized by particle size analyzer, Fourier transform infrared spectroscopy (FT-IR), transmission electron microscope(TEM), scanning electron microscope(SEM) and ultraviolet aging instrument respectively. The results show that SDS to OP-10 as multiple emulsifiers can lead to coordinated efficiency, the optimal emulsifier dosage is 2.4%?3.2%(mass fraction), and the mass ratio of SDS to OP-10 is 1?1? 1?2. The seeded emulsion polymerization can effectively introduce a organic-siloxane bonding in a macromolecule inter polymer, and the obtained acrylate latex modified by organic-siloxane possesses narrow distribution of particle size with mean diameter of 51.8?76.6 nm and has the excellent properties in weather durability and stain-resistance especially. 相似文献
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二步法合成烷基多苷工艺研究 总被引:3,自引:0,他引:3
在用二步法合成烷基多苷工艺过程中,影响烷基多苷组成的主要因素是C12醇和葡萄糖的摩尔比以及反应温度;而催化剂和正丁醇的用量对烷基多苷的组成影响不大,正丁醇在整个反应体系中起相当于一种相转移催化剂的作用。 相似文献
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