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Biodegradable polyester thin films and coatings in the line of fire: the time of polyhydroxyalkanoate (PHA)?

Abstract : From sustainability standpoint, bio-based resins are of crucial importance nowadays rather than fossil-based resins, but the former has lower flame retardancy. Bio-based coatings are in their early stages; therefore, a long way must be gone to make them resistant against flame. Polylactic acid (PLA)-based biodegradable coatings have been in the core of attention, but one can rarely find reports on flame retardancy of bio-based thin films and coatings. Attention should also be paid to the fact that first-generation biodegradable polyesters, PLAs, are hooked on crop consumption. On the other hand, polyhydroxyalkanoates (PHAs) with more or less similar structure, but different physical properties arising from their lower glass transition temperature compared with PLAs, are known as the second-generation of bio-polyester. Overall, we highlight here that PHAs might a better candidate for thin film manufacturing thanks to their synthesis by microorganism. Though mass production of PHAs is not cost-effective these days and their market just entered into the growth phase, we suggest study on flame retardancy of PHA-based resins, thin films, and coatings. This short communication deals with the current status and future ahead of PHA-based flame retardant thin films and coatings.
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https://hal.univ-lorraine.fr/hal-02144575
Contributor : Henri Vahabi <>
Submitted on : Friday, November 20, 2020 - 3:34:25 PM
Last modification on : Monday, November 30, 2020 - 11:24:00 AM

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Henri Vahabi, Elaheh Rohani Rad, Thibault Parpaite, Valérie Langlois, Mohammad Reza Saeb. Biodegradable polyester thin films and coatings in the line of fire: the time of polyhydroxyalkanoate (PHA)?. Progress in Organic Coatings, Elsevier, 2019, 133, pp.85-89. ⟨10.1016/j.porgcoat.2019.04.044⟩. ⟨hal-02144575⟩

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