Effect of thermal characteristics of different plasticisers for PVOH/sago SS blends and its weight loss degradation upon soil burial

Raiss, Mohamed; Mutalib, Nurul Wahida Abdul; Norizan, Mohd Nurazzi; Izani, Nur Fatin; Hanafi, N.

doi:10.1063/1.5047171

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Biodegradability Via Natural Weathering and Soil Burial1

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2020

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“…By-products such as carbon dioxide, biomass and soluble organic compounds are produced through polymeric degradation. 19 Kale et al reported that PVA is a biodegradable material that undergoes reduction in its molecular weight by hydrolysis depolymerisation. 20 An important factor that influences the degradability of a polymer is its hydrophilicity, where an increase in hydrophilicity facilitates biodegradation.…”

Section: Biodegradability Via Natural Weathering and Soil Burialmentioning

confidence: 99%

Glutaraldehyde Crosslinked Polyvinyl Alcohol/Eggshell Powder Biocomposite Films: Properties and Biodegradability

Alias¹,

Ismail²

2020

JPS

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The utilisation of waste materials in polymer matrices is gaining attraction due to the growing environmental awareness. In this work, eggshells waste was added into polyvinyl alcohol to produce biocomposite films via solution casting method. In order to enhance the properties of the biocomposite, glutaraldehyde (GA) was incorporated as the crosslinking agent. The effects of GA content on the biocomposite were evaluated in terms of its tensile properties, physical properties and biodegradability. From the tensile test, the optimum GA content was found to be 2 phr as portrayed by the highest tensile strength at this GA content. Further addition of GA deteriorated the mechanical properties of the biocomposite. On the other hand, the water absorption, water vapour transmissibility and biodegradability (via natural weathering and soil burial) of the biocomposite films decreased with GA addition.

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Section: Biodegradability Via Natural Weathering and Soil Burialmentioning

confidence: 99%