微纤化纤维素/丙烯腈-丁二烯-苯乙烯复合材料的制备及性能研究  

Preparation and Properties of Microfibrillated Cellulose/Acrylonitrile-butadiene-styrene Composites

作　　者：彭旋华 陈京环 刘金刚 赵涛 肖贵华 刘文波 许传波 杜秀 PENG Xuanhua;CHEN Jinghuan;LIU Jingang;ZHAO Tao;XIAO Guihua;LIU Wenbo;XU Chuanbo;DU Xiu(China National Pulp and Paper Research Institute Co.,Ltd.,Beijing 100102,China;National Engineering Lab for Pulp and Paper,Beijing 100102,China;Sinolight Specialty Fiber Products Co.Ltd.,Hebei Langfang 065001,China)

机构地区：[1]中国制浆造纸研究院有限公司,北京100102 [2]制浆造纸国家工程实验室,北京100102 [3]中轻特种纤维材料有限公司,河北廊坊065001

出　　处：《包装工程》2025年第3期50-57,共8页Packaging Engineering

摘　　要：目的以阔叶浆为原料制备改性微纤化纤维素,并将其用于增强丙烯腈-丁二烯-苯乙烯共聚物(ABS)。方法采用共研磨的方式,以Ca(OH)_(2)为研磨助剂和润胀剂,将阔叶浆解离成微纤化纤维素(MFC),再经碳酸化和硬脂酸钠改性后制得硬脂酸钙包覆的微纤化纤维素(CS-MFC)。然后采用溶剂浇铸法将CS-MFC以不同比例添加到ABS中,经双螺杆混合挤出和硫化机压片后制得CS-MFC/ABS复合材料,测定MFC、CS-MFC和CS-MFC/ABS复合材料的性能。结果氢氧化钙具有显著的助研磨作用,得到的CS-MFC中硬脂酸钙以物理吸附的方式包覆在MFC表面,水接触角由18.2°提升到72.3°。将CS-MFC添加到ABS基体中,当CS-MFC的质量分数为5%时,复合材料的拉伸强度达到38.0MPa,增幅为15.5%;当CS-MFC的质量分数为10%时,复合材料的弹性模量达到1.72GPa,增幅为5.5%;CS-MFC对ABS的热稳定性影响较小。结论经共研磨及硬脂酸钠改性得到的CS-MFC能有效提升ABS的拉伸强度和弹性模量,有利于提高ABS的应用性能。The work aims to prepare modified microfibrillated cellulose from broad-leaved pulp and use it to enhance acrylonitrile-butadiene-styrene(ABS).The broad-leaved pulp was dissociated into microfibrillated cellulose(MFC)by co-grinding with Ca(OH)_(2) as grinding aid and swelling agent,and then modified by carbonization and sodium stearate to obtain calcium stearate-coated microfibrillated cellulose(CS-MFC).Then,CS-MFC was added to ABS in different proportions by solvent casting method,and CS-MFC/ABS composites were prepared by twin-screw mixed extrusion and vulcanizing machine pressing method.The properties of MFC,CS-MFC and CS-MFC/ABS composites were measured.The calcium hydroxide had a significant grinding aid effect and the calcium stearate in the obtained CS-MFC was coated on the surface of MFC by physical adsorption,and the water contact angle increased from 18.2°to 72.3°.CS-MFC was added to the ABS matrix and when the addition amount of CS-MFC was 5%,the tensile strength of the composite reached 38.0 MPa,an increase of 15.5%.When the addition amount was 10%,the elastic modulus reached 1.72 GPa,an increase of 5.5%.CS-MFC had little effect on the thermal stability of ABS.The CS-MFC obtained by co-grinding and sodium stearate modification can effectively improve the tensile strength and elastic modulus of ABS,which is conducive to improving the application performance of ABS.

关 键 词：微纤化纤维素 丙烯腈-丁二烯-苯乙烯共聚物(ABS) 硬脂酸钠改性 复合材料 

分 类 号：TB33[一般工业技术—材料科学与工程]