微晶纤维素对纸塑复合材料的性能影响  

Effect of microcrystalline cellulose on properties of paper-plastic composites

作　　者：陈杰 龙柱 朱丁 司志昊 陈秀 周伟 王文娟 CHEN Jie;LONG Zhu;ZHU Ding;SI Zhihao;CHEN Xiu;ZHOU Wei;WANG Wenjuan(College of Environmental Engineering,Wuxi University,Wuxi 214105,China;Papermaking Lab of College of Textile Science and Engineering,Jiangnan University,Wuxi 214122,China)

机构地区：[1]无锡学院环境工程学院,江苏无锡214105 [2]江南大学纺织科学与工程学院造纸研究室,江苏无锡214122

出　　处：《功能材料》2023年第12期12231-12236,共6页Journal of Functional Materials

基　　金：国家自然科学基金项目(21466000);江苏省自然科学基金(BK20210063);无锡学院人才启动经费(2021r029#);江苏省大学生创新创业训练计划项目(202313982040Y)。

摘　　要：采用熔融挤压法制备微晶纤维素/热塑性淀粉(MCC/TPS)薄膜,并用热压法将MCC/TPS薄膜与纸张进行复合得到纸塑复合材料。结果表明,SEM图像表明了纸塑复合材料界面层具有良好的附着力。当MCC的添加量为5%(质量分数)时,TPS薄膜的机械性能提高,还延长了水蒸气通过TPS薄膜的路径,导致MCC/TPS/纸张复合材料的水蒸气透过率降低,进而提高纸塑复合材料的阻隔性能。TPS/纸张复合材料和MCC/TPS/纸张复合材料比单纯纸张具有更好的物理性能(即平滑性、柔韧性和耐折性)。因此,添加MCC可以改善纸塑复合材料的阻隔性能、机械性能等,满足食品包装行业对低水敏性材料的要求。The microcrystalline cellulose/thermoplastic starch(MCC/TPS)film was prepared by melt extrusion method,and the MCC/TPS film was combined with paper by hot pressing method.The results show that the SEM images show that the interface layer of paper-plastic composite has good adhesion.When the addition amount of MCC is 5wt%,the mechanical properties of TPS film are improved,and the path of water vapor through TPS film is extended,resulting in the water vapor transmittability of MCC/TPS/paper composite is reduced,and the barrier properties of paper-plastic composite are improved.TPS/paper composites and MCC/TPS/paper composites have better physical properties(i.e.smoothness,flexibility and folding resistance)than paper alone.Therefore,the addition of MCC can improve the barrier properties and mechanical properties of paper-plastic composite materials to meet the requirements of the food packaging industry for low water sensitive materials.

关 键 词：纸塑复合材料 微晶纤维素 阻隔性能 机械性能 热稳定性 

分 类 号：TB43[一般工业技术]