硅烷改性丙烯酸酯乳液涂饰竹集成材的防水防霉性能

Antimold and Waterproof Properties of the Bamboo Glulam Painted with Silane Modified Acrylate Latex

以乳液聚合方式制备了硅烷偶联剂改性的丙烯酸酯乳液,通过添加丙环唑或有机碘化物开发出一种新型防霉乳液涂料,并考察其对竹集成材的防水防霉效果。利用静态接触角试验对处理材表面的疏水性质进行了表征,并参照国家标准GB/T 18261—2000对处理材进行了防霉防变色性能测试。结果表明,含0.5%有机碘化物的防霉乳液具有优良的防霉防变色性能,对霉菌和变色菌的防治效力均达到100%,并能有效地减缓水的渗透速度,有助于防霉效力的长期保持,是一种应用前景广阔的竹材防霉防变色涂料。

A silane modified acylate latex was synthesized and mixed with IPBC or PPZ to form the antimold la- tex coating. Water contact angle measurement was used to characterize the surface hydrophobicity of the latex membrane on the bamboo glulam. And according the Chinese national standard GB/T 18261-2000, the antimold and antisapstain property was tested on the bamboo glulam samples treated with the latex. The result showed that the antimold and antisapstain efficiencies of the 0.5%IPBC mixed latex reached 100%. In addition, the latex com- ing could increase long term effectiveness of the antimold property by slowing down water permeation. The latex coating has broad prospect in bamboo antimold and antiarnish application.