Advanced Sustainable Thermoplastics Based on Wood Residue Using Interface Nanomodification Technique. (21st May 2018)

• Record Type: Journal Article
• Authors: Bao, Lixia; Zou, Xin; Chi, Shuai; Dong, Shunping; Lei, Jingxin; Wang, Jiliang
• Is Part Of: Advanced sustainable systems. Volume 2:Number 7(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-05-21
• Subjects: hydrophobicity -- interface modification -- sustainability -- thermoplastic wood powder; Sustainable living -- Periodicals; Sustainability -- Periodicals; Green technology -- Periodicals; Periodicals; 628
• DOI: 10.1002/adsu.201800050
• Languages: English
• ISSNs: 2366-7486

Abstract

Abstract: Wood residue (WR) is one of the most important biorenewable and sustainable resources, however, it is still a big challenge to directly use such hydrophilic resources to obtain thermoplastics by common thermoplasticization methods. Consequently, WR is usually used as fuel to produce heat or as fillers in furniture and decoration materials. Herein, a WR‐based sustainable thermoplastic with both good thermoplasticity and waterproof performance by grafting hydrophobic n ‐octanol side chains (IP‐8) onto the WR is reported. Thermoplasticity and waterproof mechanisms of the prepared thermoplastics are extensively evaluated. It is found for the first time that T g of the modified WR can be significantly reduced to 54 °C, which is much lower than the reported value (≈200 °C) of unmodified WR. T m peaks are evidently detected once the IP‐8 content exceeds 52.1 wt%, implying much better thermoplasticity in comparison with the unmodified WR. The good thermoplasticity and waterproof performance are mainly attributed to the formation of new crystal lamella with a crystallite size of ≈84 nm and hydrophobic spherical nanoparticles (150–350 nm). The developed method has large potential application in the fields of environmental‐friendly and sustainable macromolecular materials based on biomass resources like wood residue and plant straw. Abstract : A novel class of wood residue based sustainable thermoplastics with both good thermoplasticity and waterproof performance by using a simple interface modification method is prepared. The mechanism of thermoplasticity and hydrophobicity is investigated, mainly attributed to the formation of various nanoprotrusions embedded in the wood residue powders and the fusion of such nanoprotrusions.