Dynamic particle analysis for the evaluation of particle degradation during compounding of wood plastic composites

被引：29

作者：

Teuber, Laura ^{[1
,3
]}

Militz, Holger ^{[1
,3
]}

Krause, Andreas ^{[2
,3
]}

机构：

[1] Univ Gottingen, Fac Forest Sci & Forest Ecol, Sect Wood Biol & Wood Prod, Busgenweg 4, D-37077 Gottingen, Germany

[2] Univ Hamburg, Dept Wood Sci, Inst Mech Wood Technol, Leuschnerstr 91c, D-21031 Hamburg, Germany

[3] Univ Gottingen, DFG Res Training Grp GRK Resource Efficiency Inte, Pl Gottinger Sieben 3, D-37073 Gottingen, Germany

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2016年 / 84卷

关键词：

Wood fibres; Wood; Microstructures; Extrusion; MECHANICAL-PROPERTIES; FIBER BREAKAGE; SIZE; POLYMER; DISTRIBUTIONS; MORPHOLOGY; LENGTH; DUST;

D O I：

10.1016/j.compositesa.2016.02.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A dynamic image analysis method was applied for particle characterisation to study the effect of different process conditions during twin-screw compounding of WPC. The use of distributions based on different types of quantity is discussed with respect to their sensitivity to reveal the effects of different process conditions on particle degradation. Distributions based on length proved to be most suitable to represent the initially broad length distribution of the particles before processing. Sensitivity was strong enough to show differences in particle size after processing depending on process conditions. Particle size was reduced by more than 97% compared to initial size. Degradation was stronger with increasing wood content and when the screw design contained more mixing elements. The effect of screw speed and feed rate was dependent on filler content and screw design. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：464 / 471

页数：8

共 52 条

[1] Determination of fiber size distributions of injection moulded polypropylene/natural fibers using X-ray microtomography [J].