天然胶乳改性植物纤维发泡缓冲材料的制备  

Preparation of Plant Fiber Foam Buffer Material Modified by Natural Latex

作　　者：孙斌 朱磊[1] 胡军 李冬娜[1] 戴全胜 马晓军[1] 何忠 SUN Bin;ZHU Lei;HU Jun;LI Dongna;DAI Quansheng;MA Xiaojun;HE Zhong(School of Light Industry Science and Engineering,Tianjin University of Science and Technology,Tianjin 300457,China;Jiangsu Hangyu Heavy Duty Packaging Co.,Ltd.,Jiangsu Zhangjiagang 215600,China;Tianjin Baisheng Environmental Protection Technology Co.,Ltd.,Tianjin 300461,China)

机构地区：[1]天津科技大学轻工科学与工程学院,天津300457 [2]江苏航宇重型包装有限公司,江苏张家港215600 [3]天津佰盛环保科技有限公司,天津300461

出　　处：《包装工程》2024年第23期160-167,共8页Packaging Engineering

基　　金：国家自然科学基金青年项目(32301527);中国博士后基金项目(2024M752169);张家港市科技计划(ZKYY2310);制浆造纸科学与技术教育部重点实验室开放基金(KF202209);天津市自然科学基金重点项目(23JCZDJC00620)。

摘　　要：目的提高植物纤维发泡材料的缓冲性能和疏水性,并探究天然胶乳的改性对其性能的影响。方法以天然胶乳(NRL)和植物纤维为基体,以聚醚(F127)为发泡剂,以聚乙烯醇(PVA)和丙三醇为增塑剂,采用机械发泡法制备一种新型NRL改性的植物纤维发泡复合材料。研究NRL的添加量对发泡复合材料的微观结构、水接触角、压缩性能、隔热性、热稳定性的影响。结果在NRL与PVA的质量比为2∶1时,植物纤维发泡材料的综合性能最优,其疏水角高达121.4°,压缩强度(应变80%)为1102.8 kPa,回弹性(应变50%,10次循环)达到76.38%,静态缓冲系数低至0.04,且在80℃下加热60 min后,其表面温度仅上升了4.5℃。结论经NRL改性后植物纤维发泡材料具有良好的疏水、缓冲、隔热等性能。The work aims to improve the buffer properties and hydrophobicity of plant fiber foams and investigate the effects of modification of natural latex on foam properties.With natural latex(NRL)and plant fiber as matrix,polyether(F127)as blowing agent and polyvinyl alcohol(PVA)as plasticizer,a new NRL modified plant fiber foam composite was prepared by mechanical foaming method.The effects of the amount of NRL on the microstructure,water contact angle,compression properties,thermal insulation and thermal stability of the foam composites were studied.The plant fiber foam with a mass ratio of NRL/PVA=2∶1 had the best comprehensive properties,the hydrophobic angle was up to 121.4°,the compressive strength(80%strain)was 1102.8 kPa,the resilience(50%strain and 10 cycles)was up to 76.38%,and the static buffer coefficient was as low as 0.04.After heating at 80℃for 60 min,the surface temperature only increased by 5℃.In summary,the plant fiber foam material modified by NRL has good functions of hydrophobicity,buffer and heat insulation.

关 键 词：植物纤维 发泡材料 天然胶乳 改性 

分 类 号：TB48[一般工业技术—包装工程] TB34