李健昱,徐朝阳,周欢,江向东,石小梅.多孔PVA/CNFs复合水凝胶的制备与性能[J].包装工程,2016,37(15):56-60.
LI Jian-yu,XU Zhao-yang,ZHOU Huan,JIANG Xiang-dong,SHI Xiao-mei.Preparation and Properties of Porous PVA/CNFs Composite Hydrogel[J].Packaging Engineering,2016,37(15):56-60. |
| 多孔PVA/CNFs复合水凝胶的制备与性能 |
| Preparation and Properties of Porous PVA/CNFs Composite Hydrogel |
| 投稿时间：2016-04-19 修订日期：2016-08-10 |
| DOI： |
| 中文关键词: 纳米纤维素 致孔剂 聚乙烯醇 水凝胶 |
| 英文关键词: cellulose nanofibers pore-forming agent polyvinyl alcohol hydrogel |
| 基金项目:国家自然科学基金（31300483）；江苏省自然科学基金（BK20130971）；江苏高校优势学科建设工程 |
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| 中文摘要: |
| 目的 研究聚乙二醇(PEG)的加入对复合凝胶微观结构、溶胀性能和热稳定性的影响，扩大复合凝胶在包装领域的应用。方法 以PEG为致孔剂，纳米纤维素(CNFs)为增强相，利用物理交联法制备出多孔聚乙烯醇/纳米纤维素复合水凝胶。结果 PEG作为致孔剂时可制得网络互穿结构的多孔水凝胶，复合凝胶的溶胀度可达到1000，相比于纯PVA水凝胶有极大的提高，同时加入CNFs的聚乙烯醇凝胶与纯的聚乙烯醇凝胶相比具有更好的热稳定性。结论 这种有着高溶胀性和良好热稳定性的多孔复合凝胶可用于包装产品的保鲜与物流防护。 |
| 英文摘要: |
| In order to expand the application of composite gel in packaging field, the effect on the microstructure of composite gel by PEG was studied. Also the swelling property and thermal stability of composite hydrogel were studied. In this study, polyethylene glycol (PEG) and cellulose nanofibers (CNFs) were used as the pore forming agent and the reinforcing phase, respectively. And the porous nano cellulose/polyvinyl alcohol composite hydrogel was prepared by physical crosslinking method. The results showed that the interpenetrating network structure of porous hydrogel could be prepared when PEG was used as the pore forming agent. Compared to pure PVA hydrogel the swelling degree of composite hydrogel has been greatly improved, which could reach to 1000. Meanwhile, composite hydrogel had better thermal stability with CNFs incorporated compared to pure PVA hydrogel. In conclusion, Porous composite hydrogel can be used in preservation of packaging products and logistics protection. |
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