Novel epoxy-ended hyperbranched polyether derived from xylitol as sustainable tougheners for epoxy resin

Tongtong Zhang; Jihuai Tan; Xue Han; Qinghe Fu; Muhua Chen; Yong Xu; Xinbao Zhu

Polymer Testing (Feb 2021)

Novel epoxy-ended hyperbranched polyether derived from xylitol as sustainable tougheners for epoxy resin

Tongtong Zhang,
Jihuai Tan,
Xue Han,
Qinghe Fu,
Muhua Chen,
Yong Xu,
Xinbao Zhu

Affiliations

Tongtong Zhang: College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China
Jihuai Tan: College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, China; Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, Nanjing, 210037, China
Xue Han: College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China
Qinghe Fu: College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China
Muhua Chen: College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, China; Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, Nanjing, 210037, China
Yong Xu: College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, China; Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, Nanjing, 210037, China
Xinbao Zhu: College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, China; Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, Nanjing, 210037, China; Anhui Engineering Research Center of Epoxy Resin and Additives, Huangshan, 245900, China; Corresponding author. College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China.

Journal volume & issue: Vol. 94
p. 107053

Abstract

Read online

Families of bio-based hyperbranched epoxy (HBPEEs) were successfully prepared using renewable xylitol, bisphenol A and epichlorohydrin as feedstocks. The structure and physical performances of HBPEEs were characterized by FTIR, NMR, GPC and viscosity evaluation. Then, they were used as high efficient tougheners for diglycidyl of bisphenol A/diethylenetriamine (DGEBA/DETA) networks. The results indicated that the incorporation of HBPEEs into the DGEBA system can significantly enhance the mechanical properties and solvent resistance properties of the hybrid (HBPEEs/DGEBA). In particular, toughened hybrids with 15 wt% HBPEE-2 exhibited the outstanding impact strength than that of neat DGEBA (37.4 kJ/m2 vs. 11.8 kJ/m2) due to its excellent compatibility of with DGEBA. Simultaneously, the ductile fracture morphology of the modified hybrids was also confirmed by SEM. In addition, the activation energies of HBPEE-2/DGEBA hybrids calculated from the non-isothermal curing kinetics were lower than that of neat DGEBA. All of the results suggested that the bio-based HBPEEs could be used as efficient tougheners applied in epoxy resins industry.

Published in Polymer Testing

ISSN: 0142-9418 (Print); 1873-2348 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Chemical technology: Polymers and polymer manufacture
Website: https://www.journals.elsevier.com/polymer-testing

About the journal

Abstract

Keywords