制备了双组份水性聚氨酯木器涂料,探讨了羟基组分聚丙烯酸酯（PA）含量和固化剂用量对涂膜强度以及耐溶剂性、硬度和抗冲击性能等影响,并根据粒径分析和透射电子显微镜（TEM）等测试方法研究了羟基聚氨酯-丙烯酸酯复合乳液（PUA）和固化剂的反应情况及树脂结构。结果表明,PA含量为15%,固化剂加入量为5%时得到稳定性、涂膜硬度、韧性、耐溶剂性较优的水性聚氨酯木器涂料。
In this paper,two component waterborne polyurethane wood coating were obtained by hydroxyl polyurethane-acrylate（PUA） composite dispersion with synthesized curing agent.The influences of acrylate（PA） content and curing agent on the paint film properties were investigated by particle size analysis and transmission electron microscopy（TEM）,respectively.It was found that when the content of PA is 15% and the curing agent is 5%,the waterborne polyurethane wood coating obtained better emulsion stability,hardness,toughness,impact resistance and more excellent solvent resistance.
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