缩水甘油醚交联改性胶原蛋白施胶剂的制备及其性能  

Preparation and properties of sizing agent by crosslinking of modified collagen with glycidyl ether

作　　者：陈珂 王学川 李伟 薛科科 CHEN Ke;WANG Xue-chuan;LI Wei;XUE Ke-ke(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science ＆ Technology,Xi＇an 710021,China;College of Chemistry and Chemical Engineering,Shaanxi University of Science Technology,Xi＇an 710021,China)

机构地区：[1]陕西科技大学轻工科学与工程学院,陕西西安710021 [2]陕西科技大学化学与化工学院

出　　处：《陕西科技大学学报》2018年第6期30-35,共6页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(21776169);国家"863"高技术研究发展计划项目(2011AA06A108)

摘　　要：以废弃皮革屑中提取的胶原蛋白为原料,乙二醇二缩水甘油醚(GDE)为交联剂,苯乙烯(St)和丙烯酸丁酯(BA)为疏水性单体,对胶原蛋白进行交联-接枝改性,通过单因素优化实验,制备出一种造纸施胶剂(GDE-SA).使用接触角测量仪、抗张指数测定仪等探究了不同工艺参数下合成的施胶剂对瓦楞纸耐水性和物理机械性能的影响.并利用红外光谱仪、粒径分析仪等对施胶剂微观结构进行表征.研究表明,当交联剂用量为胶原蛋白用量10wt%,pH为9,m(单体)∶m(胶原蛋白)=2∶1,温度为90℃时,合成的施胶剂接枝率最高,沉淀率最低,其赋予瓦楞纸较好的耐水性和物理机械性能;合成的GDE-SA施胶剂粒径分布均匀,乳液性能稳定,比烷基烯酮二聚体施胶剂(AKD)施胶效果更好.A kind of paper sizing agent （GDE SA） was prepared by crosslinking of collagen, extracted from waste leather,with glycol diglycidyl ether （GDE） and then graft copolymeri zation with styrene （St） and butyl acrylate （BA） through single factor optimization experi ment. The effects of different sizing agents on water resistance and physical and mechanical properties of corrugated paper were investigated using contact angle measuring instrument and tensile index tester. The microstructure of the sizing agent was characterized by infrared spectrometer and particle size analyzer. The results show that when the amount of cross link ing agents is 10 wt% of collagen,pH is 9,mass ratio of monomer to collagen is 2,and the temperature is 90 ℃ ,the highest grafting rate and the lowest precipitation rate are acquired for synthesis of the sizing agent. The corrugated paper was given better water resistance and physical mechanical properties. The synthesized GDE SA sizing agent exhibits uniform size distribution and robust stability and owns better sizing performance than alkyl ketene dimer sizing agent （AKD）.

关 键 词：缩水甘油醚 胶原蛋白 施胶剂 瓦楞纸 耐水性 

分 类 号：TQ430.3[化学工程] TS727.5[轻工技术与工程—制浆造纸工程]