秸秆纤维素接枝甲基丙烯酸甲酯的合成及其疏水性研究  

Study on Synthesis and Hydrophobicity of Straw Cellulose Grafted with Methyl Methacrylate

作　　者：鲍园园 石小琴 赵军 吴代琼 苏琼[1,2,3,4] BAO Yuan-yuan;SHI Xiao-qin;ZHAO Jun;WU Dai-qiong;SU Qiong(School of Chemical Engineering,Northwest Minzu University,Lanzhou 730030,China;Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission,Lanzhou 730030,China;Key Laboratory of Utility of Environmental Friendly Composite Materials and Biomass in Universities of Gansu Province,Lanzhou 730030,China;Engineering Research Center of Biomass-Functional Composite Materials of Gansu Province,Lanzhou 730030,China)

机构地区：[1]西北民族大学化工学院,甘肃兰州730030 [2]环境友好复合材料国家民委重点实验室,甘肃兰州730030 [3]甘肃省高校环境友好复合材料及生物质利用重点实验室,甘肃兰州730030 [4]甘肃省生物质功能复合材料工程研究中心,甘肃兰州730030

出　　处：《兰州石化职业技术学院学报》2022年第2期1-4,共4页Journal of Lanzhou Petrochemical Polytechnic

基　　金：国家自然科学基金(21968032,22165025);甘肃省科技计划项目(20YF8FA045);西北民族大学化学学科创新团队(1110130139,1110130141);省级一流专业建设(2019SJYLZY-08);中央高校基本科研业务费创新团队培育项目(31920190012);甘肃省高等学校教学质量与教学改革工程项目(2019GSSYJXSFZX-01,2019GSJXCGPY-16);西北民族大学研究生科研创新项目(Yxm2021103)。

摘　　要：以小麦秸秆为原料,对其进行碱热预处理和接枝共聚改性,对接枝条件进行探索,通过FT-IR、XRD、SEM测试手段进行表征,表明甲基丙烯酸甲酯对秸秆纤维素改性成功,并且具有疏水性,改性最优条件为在70℃下,秸秆纤维素用量2g、甲基丙烯酸甲酯用量15 mL、过硫酸钾用量0.5 g,该条件下纤维素接枝物接触角最大为128.145°。以生物质秸秆为原料,降低了成本、通过接枝改性使纤维素具备疏水性,扩大了纤维素应用领域,具有深远的资源利用和环保意义。Wheat straw was used as raw material for alkali heat pretreatment and graft copolymerization modification.The grafting conditions were explored.It was characterized by FT-IR,XRD and SEM.It showed that methyl methacrylate modified straw cellulose successfully and had hydrophobicity.The optimal conditions for modification were 2g of straw cellulose,15mL of methyl methacrylate at 70 degrees.When the dosage of potassium persulfate is 0.5g,the maximum contact angle of cellulose graft is 128.145°.This study uses biomass straw as raw material,reduces the cost,makes cellulose hydrophobic through grafting modification,expands the application field of cellulose,and has far-reaching significance of resource utilization and environmental protection.

关 键 词：秸秆 生物质利用 甲基丙烯酸甲酯 接枝共聚 疏水改性 

分 类 号：TQ316.3[化学工程—高聚物工业]