水性单组分木器底漆的研制

介绍了一种单组份水性木器底漆的配方设计,讨论了不同的木器底漆专用丙烯酸乳液种类及用量、成膜助剂种类及用量、打磨填料的种类及用量、抗沉降剂用量等对漆膜性能的影响,制备了漆膜综合性能优异的底漆。研究结果表明:丙烯酸酯H的玻璃化转变温度(T_g)为70.9℃,具有较佳的机械性能;成膜助剂二丙二醇正丁醚(DPnB)与二丙二醇甲醚(DPM)复配,用量分别为体系的3.5%和6.5%,漆膜可在5℃时成膜,具有较高的硬度;以1250目的滑石粉MK-7作为打磨填料,用量占体系的10%,轻微打磨达到飘粉效果,具有较好的打磨性能;以纤维素醚E230X作为抗沉降剂,用量为体系的0.2%,底漆的储存稳定性能达到最优。

Preparation and Research on Water-borne one Component Wood Primer

A kind of formula design of one-component water-borne wood coatings was introduced. The formula composition of supporting primer was studied, varieties of special acrylic emulsions for wood primer, film forming additives, grinding stuffing, anti-sedimentation additives, and different dosages＇ influence to the film were discussed, prepared the wood primer with excellent comprehensive performance. The experimental results showed that the acrylic resin H has excellent mechanical properties with glass transition temperature （ Tg ） of 70.9℃ ; diprop- ylene glycol n-butyl ether （DPnB） and dipropylene glycol methyl ether （DPM） as film forming additives, the film presents good film surface effect and high hardness at low temperature 5℃ with the amount of 3.5% and 6.5% respectively ; talcum powder MK-7 with 1250 mesh number as grinding auxiliaries, the film presents well burnished ability with the amount of 10% ; cellulose ether E230X as anti-sedimentation additives, the wood primer has optimal stable storage performance with the amount of 0.2%.