Effect of glow discharge plasma on surface modification of chitosan film

Glow discharge plasma (GDP) was used to modify chitosan films to obtain desirable properties. The chitosan films were treated with GDP of 0–800 W for 1 min, respectively. The molecular structure of chitosan films changed under GDP treatment. Chitosan films showed an enhancement of crystallinity with...

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Bibliographic Details
Published in:International journal of biological macromolecules 2019-10, Vol.138, p.340-348
Main Authors: Li, Yuan, Wu, Chunhua, Bai, Yan, Liu, Shuyu, Yuan, Chunhong, Ding, Tian, Hu, Yaqin
Format: Article
Language:English
Subjects:
chitosan
Chitosan - chemistry
Chitosan films
crystal structure
Electricity
Glow discharge plasma
heat production
Mechanical Phenomena
Mechanical properties
Permeability
Plasma Gases - chemistry
Steam
Surface Properties
tensile strength
thermal stability
Thermodynamics
water vapor
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Summary:Glow discharge plasma (GDP) was used to modify chitosan films to obtain desirable properties. The chitosan films were treated with GDP of 0–800 W for 1 min, respectively. The molecular structure of chitosan films changed under GDP treatment. Chitosan films showed an enhancement of crystallinity with the increasing power of GDP, and the GDP treatment provided them with higher thermal stability, manifested as the exothermic peaks shifted from 291.5 °C (0 W) to 294.1 °C (800 W). Scanning electron microscope (SEM) indicated that the surface of chitosan films got rougher with 0–600 W GDP treatment, accompanied by the increase of tensile strength (TS), and the TS did not increase with the 800 W GDP treatment. However, the water vapor permanent (WVP) became higher with GDP treatment. GDP treatment also exhibited influence on chromatic aberration of chitosan films. GDP is proved to be a promising green, pollution-free, rapid technology to modify chitosan films.
ISSN:0141-8130
1879-0003
DOI:10.1016/j.ijbiomac.2019.07.039