Correlation between Solubility Parameters and Properties of Alkali Lignin/PVA Composites
Although lignin blending with thermoplastic polymers has been widely studied, the usefulness of the lignin–polymer composites is limited by the poor compatibility of the two components. In the present study, alkali lignin/PVA composite membranes were prepared by incorporating 10%, 15%, 20% and 25% a...
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doaj-fd2eb187f84447b59531f259796af2512020-11-25T00:14:47ZengMDPI AGPolymers2073-43602018-03-0110329010.3390/polym10030290polym10030290Correlation between Solubility Parameters and Properties of Alkali Lignin/PVA CompositesGaofeng Zhao0Haiyue Ni1Shixue Ren2Guizhen Fang3Material Science and Engineering College, Key Laboratory of Bio-Based Material Science and Technology Ministry of Education, Northeast Forestry University, Harbin 150040, ChinaMaterial Science and Engineering College, Key Laboratory of Bio-Based Material Science and Technology Ministry of Education, Northeast Forestry University, Harbin 150040, ChinaMaterial Science and Engineering College, Key Laboratory of Bio-Based Material Science and Technology Ministry of Education, Northeast Forestry University, Harbin 150040, ChinaMaterial Science and Engineering College, Key Laboratory of Bio-Based Material Science and Technology Ministry of Education, Northeast Forestry University, Harbin 150040, ChinaAlthough lignin blending with thermoplastic polymers has been widely studied, the usefulness of the lignin–polymer composites is limited by the poor compatibility of the two components. In the present study, alkali lignin/PVA composite membranes were prepared by incorporating 10%, 15%, 20% and 25% alkali lignin into the composites. The thermodynamic parameters of the composites were measured using inverse gas chromatography (IGC). Composite membranes with 10%, 15%, 20%, and 25% alkali lignin had solubility parameters of 17.51, 18.70, 16.64 and 16.38 (J/cm3)0.5, respectively, indicating that the solubility parameter firstly increased, and then decreased, with increasing proportions of alkali lignin. When the alkali lignin content was 15%, the composites had the largest solubility parameters. The composite membrane with an alkali lignin content of 15% had a tensile strength of 18.86 MPa and a hydrophilic contact angle of 89°. We have shown that the solubility parameters of blends were related to mechanical and hydrophilic properties of the composites and the relationships have been verified experimentally and theoretically.http://www.mdpi.com/2073-4360/10/3/290alkali lignincomposite membraneinverse gas chromatographythe solubility parameterpreparation of compositesperformance of composites |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gaofeng Zhao Haiyue Ni Shixue Ren Guizhen Fang |
spellingShingle |
Gaofeng Zhao Haiyue Ni Shixue Ren Guizhen Fang Correlation between Solubility Parameters and Properties of Alkali Lignin/PVA Composites Polymers alkali lignin composite membrane inverse gas chromatography the solubility parameter preparation of composites performance of composites |
author_facet |
Gaofeng Zhao Haiyue Ni Shixue Ren Guizhen Fang |
author_sort |
Gaofeng Zhao |
title |
Correlation between Solubility Parameters and Properties of Alkali Lignin/PVA Composites |
title_short |
Correlation between Solubility Parameters and Properties of Alkali Lignin/PVA Composites |
title_full |
Correlation between Solubility Parameters and Properties of Alkali Lignin/PVA Composites |
title_fullStr |
Correlation between Solubility Parameters and Properties of Alkali Lignin/PVA Composites |
title_full_unstemmed |
Correlation between Solubility Parameters and Properties of Alkali Lignin/PVA Composites |
title_sort |
correlation between solubility parameters and properties of alkali lignin/pva composites |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2018-03-01 |
description |
Although lignin blending with thermoplastic polymers has been widely studied, the usefulness of the lignin–polymer composites is limited by the poor compatibility of the two components. In the present study, alkali lignin/PVA composite membranes were prepared by incorporating 10%, 15%, 20% and 25% alkali lignin into the composites. The thermodynamic parameters of the composites were measured using inverse gas chromatography (IGC). Composite membranes with 10%, 15%, 20%, and 25% alkali lignin had solubility parameters of 17.51, 18.70, 16.64 and 16.38 (J/cm3)0.5, respectively, indicating that the solubility parameter firstly increased, and then decreased, with increasing proportions of alkali lignin. When the alkali lignin content was 15%, the composites had the largest solubility parameters. The composite membrane with an alkali lignin content of 15% had a tensile strength of 18.86 MPa and a hydrophilic contact angle of 89°. We have shown that the solubility parameters of blends were related to mechanical and hydrophilic properties of the composites and the relationships have been verified experimentally and theoretically. |
topic |
alkali lignin composite membrane inverse gas chromatography the solubility parameter preparation of composites performance of composites |
url |
http://www.mdpi.com/2073-4360/10/3/290 |
work_keys_str_mv |
AT gaofengzhao correlationbetweensolubilityparametersandpropertiesofalkaliligninpvacomposites AT haiyueni correlationbetweensolubilityparametersandpropertiesofalkaliligninpvacomposites AT shixueren correlationbetweensolubilityparametersandpropertiesofalkaliligninpvacomposites AT guizhenfang correlationbetweensolubilityparametersandpropertiesofalkaliligninpvacomposites |
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1725388566158114816 |