摘要
将甲基纤维素和山梨醇分别添加到半纤维素中制备半纤维素-甲基纤维素复合膜及半纤维素-山梨醇复合膜,对复合膜的成膜性和强度性能进行分析,并探讨半纤维素-甲基纤维素及半纤维素-山梨醇混合溶液的粒径和Zeta电位。结果表明,随着甲基纤维素质量分数增加,半纤维素-甲基纤维素混合溶液粒径先增大后减小;Zeta电位则随着甲基纤维素质量分数的增加先降低后提高,甲基纤维素质量分数为75%时,半纤维素-甲基纤维素混合溶液的Zeta电位达到最小值。当甲基纤维素质量分数为35%时,可形成完整的半纤维素-甲基纤维素复合膜,增加甲基纤维素质量分数,复合膜强度提高;当甲基纤维素质量分数为75%时,复合膜强度最大,但继续增加甲基纤维素的质量分数,复合膜强度降低。山梨醇质量分数为35%~50%时,可形成完整的半纤维素-山梨醇复合膜,且随着山梨醇质量分数增加,复合膜强度降低。
To improve the film-forming property of hemicellulose,the methylcellulose and sorbitol were added respectively to form composite films and the film-forming and strength property were investigated.The particle size and Zeta potential of the hemicelluloses-methylcellulose and hemicellulose-sorbitol mixed solution were also investigated.The results showed that with the increase of methylcellulose dosage,the size of hemicelluloses-methylcellulose mixed solution particles increased first then reduced and the Zeta potential reduced first then increased.When the methylcellulose dosage was 75%,the Zeta potential reached the minimum.The continuous hemicellulose-methylcellulose film was formed when the methylcellulose addition was at least 35%.The hemicellulose-sorbitol film was continuous when the sorbitol addition ranged from 35% to 50%.The strength property of hemicellulose-sorbitol composite film decreased with the increase of sorbitol content.The strength property of hemicelluloses-methylcellulose composite film improved with the increases of methylcellulose and reached a maximum value when the methylcellulose dosage was 75%,however the strength property of the composite film decreased as the methylcellulose dosage was higher than this value.
作者
胡桂春
李玉民
王庆
付时雨
吴光远
化新通
HU Guichun;LI Yumin;WANG Qing;FU Shiyu;WU Guangyuan;HUA Xintong(School of Light Industry and Engineering,Qilu University of Technology,Ji'nan,Shandong Province,250353;State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou,Guangdong Province,510640;Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education of China,Qilu University of Technology,Ji'nan,Shandong Province,250353;Shandong Beichen Electromechanical Equipment Co.,Ltd., Ji'nan,Shandong Province,250353)
出处
《中国造纸学报》
CAS
CSCD
北大核心
2019年第1期21-26,共6页
Transactions of China Pulp and Paper
基金
山东省自然科学基金(No.ZR2017PC020和ZR2017LF027)
华南理工大学制浆造纸国家重点实验室开放基金(No.201606)
制浆造纸科学与技术教育部重点实验室(No.KF2015019和KF201603)
关键词
半纤维素
甲基纤维素
山梨醇
复合膜
hemicelluloses
methylcellulose
sorbitol
composite film
