秸秆基复合板表面紫外固化疏水改性及其性能研究  

Surface Hydrophobic Modification of Straw-based Boards via UV-curing Process and Its Performance Study

作　　者：袁媛 李字蓉 陈思吉 韦柳润 孙翔 李司单 YUAN Yuan;LI Zi-rong;CHEN Si-ji;WEI Liu-run;SU Xiang;LI Si-dan(College of Mechanical and Resource Engineering,Wuzhou University,Wuzhou 543000,Guangxi,P.R.China;College of Resources,Environment and Materials,Guangxi University,Nanning 530000,Guangxi,P.R.China)

机构地区：[1]梧州学院,机械与资源工程学院,广西梧州543000 [2]广西大学,资源环境与材料学院,广西南宁530000

出　　处：《林产工业》2024年第4期7-12,21,共7页China Forest Products Industry

基　　金：广西科技计划项目-广西科技基地和人才专项(桂科AD22080018,AD22080019);广西青年科学基金项目(2023GXNSFBA026289);国家自然科学基金青年基金项目(31801313);梧州学院校级科研项目博士基金项目(利用中药渣绿色构建碳膜及其电化学性能研究,项目号2022A001);广西大学对口支援学科建设项目(合同编号:2023W02);国家级大学生创新训练项目(202311354007)。

摘　　要：利用紫外光固化法,以3-(三甲氧基硅基)丙基甲基丙烯酸酯(MEMO)为前驱体,在聚乙烯醇(PVA)溶液中水解,添加不同光引发剂(1173/184),形成疏水膜(MEMO_(1173/184)/PVA),对秸秆基复合板表面进行疏水改性。结果表明:添加壳聚糖后的表面疏水处理(C-MEMO_(1173)/PVA)能够显著提高复合板的表面疏水性。C-MEMO_(1173)/PVA处理后的秸秆基复合板微观形貌更佳,且其力学性能符合GB/T 4897—2015潮湿状态下使用家具型刨花板的要求,可应用于如卫浴家具、卫生间隔板等公共潮湿环境。In this paper,3-(trimethoxy silicyl)propylmethacrylate(MEMO)were used as the precursor,which was then hydrolyzed in polyvinyl alcohol(PVA)solution by adding different photoinitiators(1173/184)to form hydrophobic film(MEMO_(1173/184)/PVA)to modify the surface of straw-based boards.The results showed that with the addition of chitosan(C-MEMO_(1173)/PVA),the surface hydrophobic modification can significantly improve the surface hydrophobicity of straw-based boards.The surface morphology of straw-based boards after C-MEMO_(1173)/PVA modification was better.In addition,the mechanical properties of the obtained boards could still mert the requirements of using furniture particleboard in the humid state of GB/T 4897—2015,which could be applied in public humid environment such as bath furniture and toilet partition.

关 键 词：秸秆基复合板 光固化 溶胶-凝胶 疏水改性 形貌结构 

分 类 号：TS653[轻工技术与工程] TS396