以葡萄糖、异佛尔酮二异氰酸酯、聚乙二醇400、季戊四醇三丙烯酸酯、三羟甲基丙烷、2,2-羟甲基丙酸和三乙胺为主要原料,合成了绿色环保的水性紫外光固化聚氨酯。通过纳米粒度仪、傅里叶变换红外光谱仪、光学接触角测量仪及耐水性测试、乳液稳定性测试、涂层透过率测试等对涂膜的结构、性能进行分析和表征。结果表明,葡萄糖的加入能够明显改善涂膜的亲水性,制备的涂膜透明度高,热性能稳定,力学性能良好。
Based on the tip of environmental health,hydrophilicity waterbome polyurethane prepolymer under UV curing was prepared by using glucose (PG),isophorone diisocyanate (IPDI),polyethylene glycol-400 (PEG-400),pentaerythritol triacrylate (PETA),trimethylolpropane (TMP),2,2-hydroxymethyl (DMPA)and (TEA) as the main materials.The structure and properties of the film were characterized by nanoparticle size,emulsion stability test,fourier transform infrared spectroscopy (FT-IR),optical contact angle,water resistance test,and the transmittance of the film.The experimental results showed that adjusting content of glucose (PG) can significantly improve the hydrophilicity of the coating film,while the coating film had high transparency,stable thermal properties,improved elongation at break and good tensile strength.
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