Radiation modification and characterization of polyvinyl alcohol/starch/citric acid/glycerol bioblend film

Autor: Ashraf M. Abdel Ghaffar, Hussein E. Ali
Rok vydání: 2022
Předmět:
Zdroj: Polymers from Renewable Resources. 13:121-135
ISSN: 2045-1377
2041-2479
DOI: 10.1177/20412479221122298
Popis: The blending of polyvinyl alcohol (PVA) with starch with different content of citric acid as crosslinker and glycerol as plasticizer were performed by casting method. The hydroxyl groups of PVA and Starch react with the citric acid (1 %) and glycerol (10 vol %) to form crosslinked network. The FTIR spectral analyses show the successful preparation of the different composition of the prepared PVA/ Starch /Citric acid/Glycerol bioblend films. It is found that the prepared PVA/ Starch /Citric acid/Glycerol with composition (2:1:1/10 vol %) bioblend film characterized by higher water resistance, good mechanical and higher thermal stability than other prepared bioblend films. The using of gamma radiation improved and modified water resistance property were the water uptake at equilibrium reduced remarkably at dose of 10 kGy. Also the thermal stability increased as irradiation dose increased up to dose of 30 kGy The improved mechanical and thermal properties of the selected PVA/ Starch /Citric acid/Glycerol with composition (2:1:1/10 vol %) bioblend film were compared with LDPE and PP packaging films and found to be competitive to the these commercially packaging films which are also nonbiodegradable synthetic polymers than the prepared selected PVA/ Starch /Citric acid/Glycerol with composition (2:1:1/10 vol %) bioblend film. Hence this study can be represent potential development of low cost-effective and modified PVA/ Starch /Citric acid/Glycerol with composition (2:1:1/10 vol %) bioblend film that characterized by several advantages over the commercially available petrochemical films and can be used in different applications such as packaging industry.
Databáze: OpenAIRE
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