Triglycidyl isocyanurate tgic

Poly(3-hydroxybutyrate) was supplied by Biomer^® (Schwalbach, Germany) in pellet form (P309). Purified alpha-cellulose fiber grade with an alpha-cellulose content >99.5% (TC90) was purchased from CreaFill Fibers Corp. (Chestertown, MD, USA). Rice husk (RH) by-product from the rice production process was kindly provided by Herba Ingredients (Valencia, Spain). The four reactive agents used (dicumyl peroxide (DCP), hexamethylene diisocyanate (HMDI), resorcinol diglycidyl ether (RDGE), and triglycidyl isocyanurate (TGIC)) were purchased from Sigma Aldrich (Madrid, Spain). Sodium hydroxide (NaOH, 98%), hydrogen peroxide (H₂O₂, 30%), glacial acetic acid (CH₃COOH, 99%), and sulfuric acid (H₂SO₄, 98%) were purchased from Sigma Aldrich (Madrid, Spain).

Poly(3-hydroxybutyrate) (PHB) was purchased from BIOMER (Krailling, Germany) in pellet form (P309-E). A biodegradable thermoplastic elastomer (TPE) NPEL208 was supplied by the NaturePlast (Ifs, France). Two of the three reactive agents used, triglycidyl isocyanurate (TGIC) and poly-hexamethylene diisocyanate (PolyHMDI), were supplied by Sigma-Aldrich (part of Merck KGaA, Darmstand, Germany). The last reactive agent, Joncryl^® ADR 4368-C, was supplied by BASF (Ludwigshafen, Germany).