实验证明，0 .5%硬酯酸单甘酯涂膜液对黄瓜有较好的保鲜效果。
The result indicated that 0.5% glycerol monostearate had a better effect on storing cucumbers.
先制备具有均一链长的含有酰胺键的硬段单体，然后与二元醇进行缩聚反应生成酯键是制备性能良好的聚酰胺酯的较好途径。
Ester bond can be formed through the polycondensation of hard segment monomer with uniform segment length containing amide bond and dihydric alcohol, which is a better way to prepare polyesteramide.
以甲基丙烯酸甲酯为硬单体，丙烯酸丁酯为软单体，丙烯酸为功能单体，环氧树脂为改性剂制备了密封胶用环氧改性丙烯酸树脂。
The epoxy modified acrylate resin for sealant is prepared with methyl acrylate as hard monomer, butyl acrylate as soft monomers, acrylate acid as functional monomers and epoxy resin as modifier.
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