淀粉氧化改性对可剥离去污膜的性能影响研究

The research of the influence of oxidized starch on the properties of strippable decontamination coating

通过对淀粉进行氧化改性,研究了氧化淀粉对以聚乙烯醇为基体的去污膜相关性能的影响。红外光谱分析表明,氧化淀粉在1733cm^-1处有羧基吸收峰产生,10%氧化淀粉制备的去污液稳定时间可达到1673h,去污膜拉伸强度为29.32MPa,断裂伸长率为238%,在400800nm波长范围内透光率可达到85%以上,对不同材质样片的平均去污率可达80%以上。

Through oxidization modification of starch,the relative performance of decontamination coating based on PVA was studied by varying the amount of oxidized starch.IR spectrum of oxidized starch showed that the carboxyl absorption peak appeared at 1733cm^-1.Stability time of decontamination fluid of 10% oxidized starch was up to 1673 h,tensile strength was 29.32 MPa and elongation at break was 238%.The light transmittance of decontamination coating was up to 85% and the decontamination average efficiency was more than 80% for different materials.