Abstract Recently, conventional solvent-typed polyurethanes are subject to many regulations due to emission of organic volatile compounds(VOCs) and researches have been focused on eco-friendly waterborne polyurethane dispersions(WPUDs) as an alternative of conventional solvent-typed ones causing poor working environment. PVC is widely used because of low price and good heat and fire resistance. To develop eco-friendly coatings on poly(vinyl chloride) (PVC), various WPUDs were synthesized by combination of polyol such as polyester, polycaprolactone, polyether or polycarbonate, hydrophilic compounds (dimethylol butanoic acid, DMBA), and reactive silicone. The structure and properties of synthesized WPUDs were characterized by FT-IR, particle size, contact angle, surface energy, tensile strength, elongation, and adhesion strength. Also, their particle sizes decreased while tensile strengths increased with increasing DMBA content. Surface energy and contact angle of WPUDs were strongly affected by the content of hydrophobic reactive silicone. The optimum properties of WPUDs were obtained by controlling their compositions, polyol, hydrophilic compound, and reactive silicone.

中文翻译：

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聚氯乙烯表面涂料用水性聚氨酯分散体的合成及性能

摘要 近来，由于有机挥发性化合物（VOCs）的排放，传统溶剂型聚氨酯受到许多法规的约束，研究重点是环保型水性聚氨酯分散体（WPUDs）作为传统溶剂型聚氨酯分散体的替代品，导致工作不良。环境。PVC因其价格低廉、耐热、耐火性能好而被广泛使用。为了在聚氯乙烯 (PVC) 上开发环保涂料，通过聚酯、聚己内酯、聚醚或聚碳酸酯等多元醇、亲水性化合物（二羟甲基丁酸，DMBA）和反应性有机硅的组合合成了各种 WPUD。合成的WPUDs的结构和性能通过FT-IR、粒径、接触角、表面能、拉伸强度、伸长率和粘附强度进行表征。还，随着 DMBA 含量的增加，它们的粒径减小，而拉伸强度增加。WPUDs 的表面能和接触角受疏水反应性有机硅含量的强烈影响。WPUD 的最佳性能是通过控制其组成、多元醇、亲水性化合物和反应性有机硅获得的。