Flexible Biofoams Based on Furanics and Fatty Acids Esterified Tannin

作     者：Elham Azadeh Ummi Hani Abdullah Christine Gerardin Antonio Pizzi Philippe Gerardin Cesar Segovia 

作者机构：LERMABUniversity of LorraineBlvd des AiguillettesNancy54000France Department of Wood and Fiber IndustriesFaculty of Forestry and EnvironmentUniversiti Putra MalaysiaSerdangSelangor43400Malaysia Institute of Tropical Forestry and Forest Products(INTROP)Universiti Putra MalaysiaSerdangSelangor43400Malaysia CETELORUniversity of LorraineEpinal88000France 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)

年 卷 期：2023年第11卷第10期

页      面：3625-3645页

核心收录：

学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：The Malaysia-France Bilateral Research Collaboration Project Grant 2021 (MATCH 2021)funded this research work MOHE-Fire-Resistant and Water-Repellent Tannin-Furanic-Fatty Acid Biofoams 

主　　题：Flexible tannin-furanic foams esterified tannins water repellence TGA SEM compression 

摘      要：Water repellant,flexible biofoams using tannin esterified with various fatty acid chains,namely lauric,palmitic and oleic acids,by reaction with lauryl chloride,palmitoyl chloride,and oleyl chloride were developed and their characteristics compared with the equivalently esterified rigid ***,while initially added to control the reaction temperature,was used as a plasticizer yielding flexible biofoams presenting the same water repellant character that the equivalent rigid *** was used as the cross-linking agent instead of formaldehyde,as it showed a better performance with the esterified *** compression results showed a significant decrease of the Modulus of Elasticity(MOE)of the flexible foams in relation to that of the rigid foams,confirming their flexible *** lauryl-and palmitoyl-esterified biofoams presented similar mechanical properties,while the oleyl-esterified biofoam presented different mechanical and morphological result not really showing the expected *** the esterified rigid and flexible tannin-based biofoams showed good water resistance and their sessile drop contact angle analysis as a function of time confirmed this *** Electron Microscope(SEM)analysis showed the flexible foams to present a higher proportion of closed cells than the rigid ***,the cells depth of the flexible foams was lower than that of the rigid *** regards their thermal resistance,the flexible foams showed a slight loss of mass compared to the rigid ones without *** types of foams presented much lower surface friability of non-esterified rigid foams.