Abstract
Hybrid basalt fiber (BF) and Talc filled high density polyethylene (HDPE) and co-extruded wood-plastic composites (WPCs) with different BF/Talc/HDPE composition levels in the shell were prepared and their mechanical, morphological and thermal properties were characterized. Incorporating BFs into the HDPE-Talc composite substantially enhanced the thermal expansion property, flexural, tensile and dynamic modulus without causing a significant decrease in the tensile and impact strength of the composites. Strain energy estimation suggested positive and better interfacial interactions of HDPE with BFs than that with talc. The co-extruded structure design improved the mechanical properties of WPC due to the protective shell layer. The composite flexural and impact strength properties increased, and the thermal expansion decreased as BF content increased in the hybrid BF/Talc filled shells. The cone calorimetry data demonstrated that flame resistance of co-extruded WPCs was improved with the use of combined fillers in the shell layer, especially with increased loading of BFs. The combined shell filler system with BFs and Talc could offer a balance between cost and performance for co-extruded WPCs.
Highlights
Wood-plastic composites (WPC) are widely used in structural building applications including sheathings, decking, roof tiles, and window trims [1,2]
WPCs have improved thermal, mechanical and long-term creep performance compared with unfilled plastics, and enhanced durability compared with wood composites
The objective of the study described in this paper was to investigate the effect of two individual fillers (i.e., basalt fiber (BF) vs. talc particulate) and their combinations on the morphological, mechanical and thermal expansion properties of the filled composites as potential shell material for coextruded WPC
Summary
Wood-plastic composites (WPC) are widely used in structural building applications including sheathings, decking, roof tiles, and window trims [1,2]. Talc is widely used in wood and natural fiber plastic composites to reduce material cost and to improve stiffness and durability [1,6]. Wu et al [16] successfully prepared BF filled HDPE and co-extruded WPCs with BF/HDPE composite shell and characterized their mechanical, morphological and thermal properties. The use of the pure HDPE and BF/HDPE layers over a WPC core greatly improved composite impact strength Both flexural and thermal expansion properties were enhanced with BF reinforced HDPE shells. The objective of the study described in this paper was to investigate the effect of two individual fillers (i.e., BF vs talc particulate) and their combinations on the morphological, mechanical and thermal expansion properties of the filled composites as potential shell material for coextruded WPC. The result of this study can help provide a fundamental base for developing new functional applications of co-extruded WPC with hybrid filler reinforced shells
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
