磷酸酯改性丙烯酸水性防锈漆的制备
摘 要
以五氧化二磷与甲基丙烯酸羟丙酯自制了功能性磷酸酯单体，并与丙烯酸、甲基丙烯酸甲酯、丙烯酸丁酯、丙烯酸羟丙酯等单体，以偶氮二异丁腈为引发剂，在乙二醇丁醚中进行聚合，合成了改性丙烯酸树脂。将其与固化剂氨基树脂混合即得一种水性防锈漆。考察了原料用量对漆膜性能的影响，得到最优制备条件为：甲基丙烯酸羟丙酯与五氧化二磷的摩尔比为 2.0，磷酸酯用量(占单体总质量，后同)5%，丙烯酸用量 20%，甲基丙烯酸甲酯用量 35%。所得漆膜可耐 5% Clonal 溶液浸泡 30 d，冲击强度 50 kg·cm，附着力0级，柔韧性 3 mm，铅笔硬度 HB。
关键词：水性防锈漆；磷酸酯；改性；丙烯酸；乳液聚合
Preparation of waterborne anti rust phosphate ester-modified acrylic varnish
A functional phosphate ester monomer was prepared from phosphorus pent oxide and 2-hydroxypropyl Merthiolate, and then polymerized with other monomers such as acrylic acid, methyl Merthiolate, butty clatter, and hydroponically clatter, using impressionability as initiator in ethylene glycerin butty ether, forming a modified acrylic resin. A waterborne anti rust varnish was obtained by mixing the modified acrylic resin with amigo resin as a curing agent.
The effects of the contents of raw materials on properties of the cured film obtained therefrom were studied. The optimal preparation parameters were obtained as follows: the molar ratio of 2-hydroxypropyl Merthiolate phosphorescent pent oxide is 2.0, and the amount (with respect to the total mass of monomers) is 5wt.% for phosphate ester, 20wt.% for acrylic acid, and 35wt.% for methyl Merthiolate. The film obtained therefrom can endure a 30-day immersion in 5% Clonal, and has an impact strength of 50 kg·cm, an adhesion strength of 0 grade, a flexibility of 3 mm, and a pencil hardness of HB.
Keywords: waterborne anti rust varnish; phosphate ester; modification; acrylic acid; emulsion polymerization
目 录
以上是毕业论文文献综述，课题毕业论文、任务书、外文翻译、程序设计、图纸设计等资料可联系客服协助查找。
