Injection molding WPC
Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
The use of wood-plastic composites, WPC, in commercial products is today limited. Current WPC products on the market are to a large extent limited to extruded products. There are strong reasons to increase the use of WPC. WPC can be manufactured from used plastic that otherwise cannot be recycled. This paper gives a brief description of the manufacturing of WPC, including wood filler treatment, the role of coupling agents and compounding. It describes the machinery used for producing WPC, and gives a introduction to mold manufacturing.The use of WPC as an alternative to pure thermoplastics in injection molding processes is discussed. Furthermore it is described how WPCs differ from pure thermoplastics in terms of chemical and physical properties. The paper also describes the consequences of these properties in an injection molding cycle. The work finally puts focus on how to obtain process optimization through better understanding of pressure and temperature throughout the injection molding cycle.
Place, publisher, year, edition, pages
2011. , 29 p.
, Examensarbete inom teknik och management, grundnivå, 145
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-57943OAI: oai:DiVA.org:kth-57943DiVA: diva2:472824
Subject / course