聚乙烯吡咯烷酮/LDH纳米复合水凝胶的制备及表征

Preparation and Characterization of N-Polyvinylpyrrolidone/LDH Nano Composite Hydrogel

以N-乙烯吡咯烷酮(NVP)为单体、LDH为交联剂和增强剂、偶氮二异丁腈(AIBN)为引发剂,通过原位聚合法引发链式聚合反应得到聚乙烯吡咯烷酮/LDH纳米复合水凝胶,并对其红外光谱、吸水性能、透明度、力学性能进行了分析。结果表明,该复合水凝胶具有良好的弹性、较强的吸水性,当LDH浓度为5%时,透光率达到93.1%。

Using N-vinylpyrrolidone（NVP）as a monomer,LDH as a cross-linking agent and enhancer,azobisisobutyronitrile（AIBN）as an initiator,N-polyvinylpyrrolidone/LDH nano composite hydrogel was obtained by in-situ polymerization.And its IR spectrum,water absorbency,transparency,and mechanical property were analyzed.Results showed that the composite hydrogel had good flexibility and strong water absorbency.When the concentration of LDH was 5%,the light transmittance reached 93.1%.