Evaluation of the mechanical and morphological properties of long fibre reinforced polyurethane rigid foams

被引：41
作者：
Serban, Dan-Andrei [1 ,2 ]
Weissenborn, Oliver [3 ]
Geller, Sirko [3 ]
Marsavina, Liviu [1 ]
Gude, Maik [3 ]
机构：
[1] Polytech Univ Timisoara, Dept Strength Mat, 1 M Viteazu Blvd, Timisoara 300222, Romania
[2] Polytech Univ Timisoara, Res Inst Renewable Energy, Timisoara 300774, Romania
[3] Tech Univ Dresden, Inst Leichtbau & Kunststofftech, D-01307 Dresden, Germany
来源：
POLYMER TESTING | 2016年 / 49卷
关键词：
PUR foams; Glass fibre; Mechanical properties; Microstructure; Long fibre injection; BEHAVIOR; PERFORMANCE; COMPOSITES; CORE;
D O I：
10.1016/j.polymertesting.2015.11.007
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper examines the effect of glass fibre reinforcements on the mechanical and morphological properties of polyurethane rigid foams. The processing parameters of the polyurethane foam were maintained constant while the influence of the filler was evaluated in terms of fibre mass content variation (5%, 10% and 20%) and fibre length variation (12.5 mm, 25 mm and 50 mm). Tests were carried out in compression, three-point bending, tension and shear for all material configurations, the variation in fibre mass content having a larger influence on mechanical properties than fibre length. The structure of the specimens was investigated using Scanning Electron Microscopy and Computer Tomography in order to investigate the filler influence on morphology and the scatter in results. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：121 / 127
页数：7
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