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首页> 外文期刊>Journal of Applied Polymer Science >PROPERTIES OF UV-CURABLE POLYURETHANE ACRYLATES USING NONYELLOWING POLYISOCYANATE FOR FLOOR COATING
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PROPERTIES OF UV-CURABLE POLYURETHANE ACRYLATES USING NONYELLOWING POLYISOCYANATE FOR FLOOR COATING

机译：壬酸低聚异氰酸酯用于地板涂料的紫外光固化聚氨酯丙烯酸酯的性能

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摘要

W-curable polyurethane acrylates for poly(vinyl chloride) (PVC) floor coating were prepared using nonyellowing polyisocyanates. The effects of the chemical structure of the polyisocyanates and hydroxyacrylates, and the compositions of the prepolymer/diluent on the properties of the UV-curable polyurethane acrylates were investigated. Several different urethane acrylate prepolymers from four different polyisocyanates, isophorone diisocyanate (IPDI) adduct, hexamethylene diisocyanate (HDI) adduct, HDI biuret, and HDI isocyanurate, and two different hydroxyacrylates, hydroxypropyl acrylate (HPA), polycaprolactone modified hydroxyethylhexylacrylate (PCMHEA). UV-curable coating materials were formulated from the prepolymers and 1-hydroxycyclohexylphenyl ketone as a photoinitiator with polyethylene glycol diacrylate (PEGDA) as a diluent. The polyurethane acrylates prepared with HDI isocyanurate and the equimolar mixture of HPA and PCMHEA showed balanced coating propel-ties such as tensile properties, hardness, weatherability, and good adhesion. The dynamic mechanical studies showed the properties of those polyurethane acrylates were well correlated with their glass transition temperature behaviors. It was also found that the adhesion was best as a PVC floor coating with the appropriate viscosity (below 150 P at 25 degrees C) when 35% PEGDA as a diluent was used. (C) 1996 John Wiley & Sons, Inc. [References: 11]
机译：使用不泛黄的多异氰酸酯制备用于聚（氯乙烯）（PVC）地板涂料的W型可固化聚氨酯丙烯酸酯。研究了多异氰酸酯和羟基丙烯酸酯的化学结构以及预聚物/稀释剂的组成对可紫外线固化聚氨酯丙烯酸酯性能的影响。来自四种不同的多异氰酸酯，异佛尔酮二异氰酸酯（IPDI）加合物，六亚甲基二异氰酸酯（HDI）加合物，HDI缩二脲和HDI异氰脲酸酯的几种不同的聚氨酯丙烯酸酯预聚物，以及两种不同的羟基丙烯酸酯，丙烯酸羟丙酯（HPA），聚己内酯改性的丙烯酸羟乙基己酯（PCMHEA）。由预聚物和1-羟基环己基苯基酮（作为光引发剂）和聚乙二醇二丙烯酸酯（PEGDA）作为稀释剂配制可紫外光固化的涂料。用HDI异氰脲酸酯以及HPA和PCMHEA的等摩尔混合物制得的聚氨酯丙烯酸酯显示出平衡的涂料推进性能，例如拉伸性能，硬度，耐候性和良好的附着力。动态力学研究表明，这些聚氨酯丙烯酸酯的性能与其玻璃化转变温度行为密切相关。还发现当使用35％PEGDA作为稀释剂时，具有适当粘度（25℃下低于150 P）的PVC地板涂料的粘合性最佳。 （C）1996 John Wiley＆Sons，Inc. [参考：11]

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