Issue 37, 2019

Eco-friendly transparent poplar-based composites that are stable and flexible at high temperature

Abstract

Farmed poplar could meet the human demand for transparent wood-based composites to replace glass, avoiding the consumption of natural forest resources. We removed the lignin of poplar using a potassium hydroxide (KOH) and deionized water solution, the waste black liquor could be converted into compound potassium fertilizer after being neutralized by phosphoric acid. Polyurethane (PU) was then added to the lignin-stripped poplar and hardened, the transparent poplar-based composite (TPC) has stable transparency at high temperatures, and flexibility – it elongates (about 15%) before breaking. These properties could provide more uses in hot environments requiring a flexible shape. The TPC PU provides transmittance of 85%, haze of 83%, and anisotropic light diffraction.

Graphical abstract: Eco-friendly transparent poplar-based composites that are stable and flexible at high temperature

Article information

Article type
Paper
Submitted
12 May 2019
Accepted
19 Jun 2019
First published
11 Jul 2019
This article is Open Access
Creative Commons BY license

RSC Adv., 2019,9, 21566-21571

Eco-friendly transparent poplar-based composites that are stable and flexible at high temperature

W. Zou, D. Sun, Z. Wang, R. Li, W. Yu and P. Zhang, RSC Adv., 2019, 9, 21566 DOI: 10.1039/C9RA03550H

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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