Influence of Bioadditives Made from Sugarcane Bagasse on Interpenetrating Polymer Networks

Author:

Liu Kuan-Liang1ORCID,Kuo Pei-Yu2ORCID,Han Jin-Lin3ORCID,Hsieh Kuo-Huang4ORCID

Affiliation:

1. Institute of Polymer Science and Engineering, College of Engineering, National Taiwan University, 1, Sec. 4, Roosevelt Road, Taipei City 106, Taiwan

2. Department of Forestry and Natural Resources, College of Bioresources, National Ilan University, 1, Sec. 1, Shennong Road, Yilan City, Yilan County 260, Taiwan

3. Department of Chemical and Materials Engineering, College of Engineering, National Ilan University, 1, Sec. 1, Shennong Road, Yilan City, Yilan County 260, Taiwan

4. Department of Chemical Engineering, College of Engineering, National Taiwan University, 1, Sec. 4, Roosevelt Road, Taipei City 106, Taiwan

Abstract

To achieve a sustainable bioeconomy, various bioderived additives have been developed to produce biocomposites, but only a handful of research on biocomposites focuses on the effect of bioderived additives on interpenetrating polymer networks (IPNs). This study is aimed at understanding the interaction between bioadditives and interpenetrating polymer networks and is the first study to build the relationship between bioadditive ratio and damping factor based on dynamic mechanical analysis. The IPNs were prepolymerized in bulk by isocyanate and poly(oxypropylene) polyol (PPG) with two different molecular weights (PPG 700 and PPG 1000), and then, they were grafted with bisphenol A diglycidyl ether epoxy. The bioadditives were prepared from agricultural waste, sugarcane bagasse, and the effect of the coupling agent 3-glycidoxypropyltrimethoxysilane on a bioadditive surface was also discussed in this study. The results show that modified bioadditives have significant enhancement on tensile strength and tensile modulus of polyurethane-grafted epoxy resin interpenetrating polymer networks (PU(PPG)-EP graft-IPNs). However, the enhancement is not from a strong covalent bond between matrix and additives, that is, due to the well-dispersed bioadditives which provide stiff segments. The static and dynamic mechanical performance, water absorption ratio, and morphology of the (PU(PPG)-EP graft-IPNs) elastomers were also thoroughly discussed in this study.

Publisher

Hindawi Limited

Subject

Polymers and Plastics

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