High Performance Compostable Biocomposites Based on Bacterial Polyesters Suitable For Injection Molding and Blow Extrusion

Chemical and biochemical engineering quarterly

H. Chen¹  A. Corti¹  L. Pérez Amaro¹  A. Barghini¹  E. Chiellini¹ 

关键词: biocomposites;    Poly(hydroxyalkanoate) (PHAs);    processing;    injection molding;    biodegradation;    chain extenders;   

DOI  :  10.15255/CABEQ.2014.2259

来源: Croatian Society of Chemical Engineers

【 摘 要 】

Abstract This work deals with the design, preparation and characterization of composites based on Poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyvalerate] and lignocellulosic filler suitable for the production of compostable and biodegradable biocomposites that mimic the thermo-mechanical and processing characteristics commonly found in those polymeric materials specially designed for injection molding and blow extrusion. The best formulation in terms of processability, thermo-mechanical properties and biodegradation behavior under mature compost conditions was the biocomposite that contained 42.8 % by wt. of Poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyvalerate] as the major component, 5 % by wt. of lignocellulosic filler, 10 % by wt. of tributyl citrate plasticizer, 30 % by wt. of Poly(butylene adipate-co-terephthalate), 10 % by wt. of Poly(vinyl acetate), 0.2 % by wt. of Joncryl ADR-4368C a chain extender, 1 % by wt. of a primary antioxidant mix, and 1 % by wt. of nucleating agents.

【 授权许可】

Unknown