Effect of functional mineral additive on processability and material properties of wood-fiber reinforced poly(lactic acid) (PLA) composites

被引：45

作者：

Ozyhar, T. ^{[1
]}

Baradel, F. ^{[1
]}

Zoppe, J. ^{[1
]}

机构：

[1] Omya Int AG, Baslerstr 42, CH-4665 Oftringen, Switzerland

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2020年 / 132卷

关键词：

Biocomposite; Natural fibres; Particle-reinforcement; Extrusion; MECHANICAL-PROPERTIES; SUCCINIC ANHYDRIDE; SURFACE-TREATMENTS; THERMAL-STABILITY; GREEN COMPOSITES; NANOCOMPOSITES; BIOCOMPOSITES; FILLERS;

D O I：

10.1016/j.compositesa.2020.105827

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study examines the use of alkenyl succinic anhydride (ASA)-surface treated calcium carbonate as a functional mineral additive for application in wood fiber (WF)-reinforced PLA composites. The influence of addition quantity on the material properties of PLA composites with 40 wt% fiber reinforcement was examined at mineral addition levels of 10 wt%, 20 wt% and 30 wt%, respectively. The benefits of ASA surface-treated calcium carbonate over untreated mineral were exemplified by comparing the thermomechanical properties of PLA composites at an addition level of 10 wt%. The results demonstrate that the addition of ASA-treated calcium carbonate has distinctive advantages over untreated mineral, in terms of both processability and material properties. First, it enables better control of the process by reducing the flowability of the PLA matrix. Furthermore, it improves the fiber adhesion with the PLA, allowing for a substantial reduction of PLA content in the composite formulation while maintaining material properties.

引用

页数：8

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