Mechanical, thermo-mechanical and water uptake performance of wood flour filled polyurethane elastomer eco-composites: influence of surface treatment of wood flour

被引：40

作者：

Kilinc, Kerim ^{[2
]}

Kanbur, Yasin ^{[2
]}

Tayfun, Umit ^{[1
]}

机构：

[1] Inovasens Ltd, Izmir Technopk, TR-35430 Izmir, Turkey

[2] Karabuk Univ, Dept Met & Mat Engn, TR-78050 Karabuk, Turkey

来源：

HOLZFORSCHUNG | 2019年 / 73卷 / 04期

关键词：

eco-composites; mechanical properties; surface modification; thermoplastic polyurethane; wood flour; CHEMICAL-MODIFICATION; COUPLING AGENTS; FLAME-RETARDANT; FIBER; DEGRADATION; MORPHOLOGY; DENSITY;

D O I：

10.1515/hf-2018-0116

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Alkaline and silane treatments were applied to wood flour (WF) to enrich its adhesion to bio-based thermoplastic polyurethane (TPU) matrix. TPU/WF eco-composites were prepared at a constant ratio of 30% by the melt blending process. The mechanical, thermo-mechanical, melt-flow, water uptake and morphological properties of the materials were investigated. Silane-treated WF filled composite exhibited better mechanical performance with respect to untreated WF due to enhancement of adhesion between WF and TPU matrix after surface treatments. This sample also gave the lowest water absorption value among composites. The results confirmed that silane treatment of WF led to significant improvement on the mechanical and physical properties of TPU-based composites in addition to an improved water resistance for outdoor applications.

引用

页码：401 / 407

页数：7

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