摘要
将双丙酮丙烯酰胺 (DAAM)参与共聚的苯丙乳液与含有肼基的聚氨酯水分散体混合后 ,得到了交联型聚氨酯 /苯丙树脂复合乳液。研究了 DAAM的用量对苯丙乳液的影响。用傅里叶红外光谱和透射电镜证实了酮羰基与肼基之间发生了交联反应。对乳液膜性能的研究结果表明 ,交联反应提高了乳液膜的耐水性、耐溶剂性、断裂强度、断裂伸长率。
The Crosslinkable polyurethane/styrene-acrylic polymer composite emulsion was obtained by mixing the styrene-acrylic polymer emulsion incorporating DAAM with the polyurethane dispersion containing hydrazine group. The influence of the amount of DAAM on styrene-acrylic polymer emulsion was studied. The crosslinking reaction between keto group and hydrazine group was proved by FTIR and TEM(transimission electron microscope) technology. Studies on the film properties show that water-resistance, solvent-resistance, tensile strength and elongation at break of the emulsion film were all improved due to the crosslinking reaction.
出处
《化学世界》
CAS
CSCD
北大核心
2001年第2期68-71,共4页
Chemical World
基金
国家"九五"重点科技项目!攻关计划资助课题 96 -A1 2 -0 6 -0 5 -0 2 )
关键词
双丙酮丙烯酰胺
苯丙乳液
聚氨酯
交联
改性
复合乳液
DAAM
styrene-acrylic emulsion
polyurethane
keto carbonyl group
hydrazine group
crosslinking
