功能性乳液界面剂在酚醛泡沫外墙保温系统中的应用

摘要

通过自由基乳液聚合,合成具有核壳结构的苯丙乳液,以此乳液作为酚醛树脂泡沫材料的界面剂,考察了此种界面剂对酚醛树脂泡沫材料应用性能的影响.试验结果表明,用合成的苯丙乳液界面剂处理酚醛泡沫材料,可以有效地解决酚醛泡沫材料强度低、吸水率大、酸性强等方面的缺点,使得酚醛泡沫材料在建筑外墙保温系统中得到更广泛的应用.%Styrene-acnlic emulsions with core-shell structure had been prepared by the polymerization of free-base emulsion, and applied as interface agent on phenolic foam panel. The effects of this kind of interface agent on phenolic foam panel for external thermal insulation system were investigated. The results show that phenolic foam strength, water absorption (by mass) and pH value were improved by this emulsion interface agent,and made phenolic foams have a wide range of applications on external thermal insulation system.