Improved reswelling behaviors and thermal stability of polyvinyl alcohol composite gels assisted by salt

被引：6
|
作者：
Zhang, Zhen [1 ]
Lucia, Lucian [1 ,2 ]
机构：
[1] NC State Univ, Dept Forest Biomat, Raleigh, NC 27695 USA
[2] NC State Univ, Dept Chem, Raleigh, NC 27695 USA
来源：
MATERIALS LETTERS | 2020年 / 281卷 / 281期
关键词：
Polyvinyl alcohol; Gel; Thermal stability; Reswelling; Composite; PVA; MEMBRANES;
D O I：
10.1016/j.matlet.2020.128743
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Deswelling and reswelling behaviors of polyvinyl alcohol (PVOH) gel systems were studied in which natural polymers promoted reswelling capacity of PVOH gels, while salt (NaCl) solutions de-swelled the hydrogels but improved the reswelling performance. Thermogravimetric analysis (TGA) results indicated that the salt treatment considerably improved the thermal stability. Differential scanning calorimetry (DSC) results indicated that the salt treatment hindered crystallization of all the systems except the urea system. The improved reswelling capacity might be attributed to changes in the crystalline region caused by the salt. (C) 2020 Elsevier B.V. All rights reserved.
引用
收藏
页数：4
相关论文
共 50 条
  • [31] Effect of chemical functionalization on the thermal transport in the boron nitride nanosheets/polyvinyl alcohol composite
    Lu, Jibao
    Sun, Rong
    Wong, Ching
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2019, 258
  • [32] Thermal behavior of polyvinyl alcohol-gellan gum-Al3+ composite hydrogels with improved network structure and mechanical property
    Wang, Fei
    Wen, Ying
    Bai, Tongchun
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2017, 127 (03) : 2447 - 2457
  • [33] Ultrasonic-assisted preparation of graphene oxide carboxylic acid polyvinyl alcohol polymer film and studies of thermal stability and surface resistivity
    Li, Yongshen
    Li, Jihui
    Li, Yuehai
    Li, Yali
    Song, Yunan
    Niu, Shuai
    Li, Ning
    ULTRASONICS SONOCHEMISTRY, 2018, 40 : 798 - 807
  • [34] Ultrasonic-assisted synthesis of polyvinyl alcohol/phytic acid polymer film and its thermal stability, mechanical properties and surface resistivity
    Li, Jihui
    Li, Yongshen
    Song, Yunna
    Niu, Shuai
    Li, Ning
    ULTRASONICS SONOCHEMISTRY, 2017, 39 : 853 - 862
  • [35] Mechanical performance and thermal stability of polyvinyl alcohol-cellulose aerogels by freeze drying
    Zhou, Ting
    Cheng, Xudong
    Pan, Yuelei
    Li, Congcong
    Gong, Lunlun
    CELLULOSE, 2019, 26 (03) : 1747 - 1755
  • [36] THERMAL-STABILITY OF INVERTASE IMMOBILIZED ON SUPERFINE FILAMENTS OF A POLYVINYL-ALCOHOL) DERIVATIVE
    UEDAIRA, H
    ICHIJO, H
    NAGASAWA, J
    SUEHIRO, T
    YAMAUCHI, A
    THERMOCHIMICA ACTA, 1988, 123 : 183 - 190
  • [37] Determination of thermal stability and activation energy of polyvinyl alcohol-cassava starch blends
    Sin, Lee Tin
    Rahman, W. A. W. A.
    Rahmat, A. R.
    Mokhtar, M.
    CARBOHYDRATE POLYMERS, 2011, 83 (01) : 303 - 305
  • [38] Optimization of the Preparation Process of Crosslinked Polyvinyl Alcohol and Its Thermal Stability in Cementing Slurry
    Li, Junhao
    Ai, Haochen
    Wang, Qingchen
    He, Huifeng
    Chang, Xiaofeng
    Chen, Gang
    Golian-Struharova, Alena
    Slany, Michal
    Qin, Fangling
    GELS, 2025, 11 (02)
  • [39] Thermal stability of composites of polyvinyl alcohol with nanocrystalline cellulose in its acid and neutralized forms
    Voronova, Marina I.
    Surov, Oleg V.
    Guseinov, Sabir S.
    Zakharov, Anatoly G.
    COMPOSITES COMMUNICATIONS, 2016, 2 : 15 - 18
  • [40] Experimental study on mechanical and frost heave behaviors of silty clay improved by polyvinyl alcohol and polypropylene fiber
    JianKun Liu
    Sergey Tsaybel
    XiaoQiang Liu
    Li Liu
    XiaoKang Li
    Xu Li
    Research in Cold and Arid Regions, 2023, 15 (02) : 57 - 65
12345