Effect of extrusion conditions on the surface quality, mechanical properties, and morphology of cellular wood flour/high-density polyethylene composite profiles

2012 ◽  
Vol 26 (8) ◽  
pp. 1127-1144 ◽  
Author(s):  
Kamal B Adhikary ◽  
Mohammad R Islam ◽  
Ghaus M Rizvi ◽  
Chul B Park
Keyword(s):  
Mechanical Properties ◽  
Surface Quality ◽  
High Density Polyethylene ◽  
Wood Flour ◽  
High Density ◽  
Polyethylene Composite

Research on Plastic Wood Composite Materials Production Technology

2012 ◽  
Vol 182-183 ◽  
pp. 274-277
Author(s):  
Fang Huang
Keyword(s):  
Composite Material ◽  
High Density Polyethylene ◽  
Wood Flour ◽  
Wood Fiber ◽  
Waste Recycling ◽  
High Density ◽  
Natural Material ◽  
Wood Composite ◽  
Polyethylene Composite ◽  
Environmental Material

Wood flour is inexpensive, and can be used as a reinforcing agent to improve the mechanical properties of high density polyethylene, reduce cost. Wood fiber as a renewable natural material, biodegradation, therefore, high filling wood powder high density polyethylene composite material with certain environmental compatibility, at the same time, high density polyethylene can be a source of waste recycling materials, therefore plastic-wood composite material is a kind of can reduce the "white pollution" environmental material. [1-5]

Mechanical Behaviour of High Density Polyethylene Based Foams

2009 ◽  
Vol 620-622 ◽  
pp. 781-784
Author(s):  
Juan Lobos ◽  
Miguel A. Rodríguez-Pérez ◽  
Miguel del Carpio ◽  
Jose A. de Saja
Keyword(s):  
Mechanical Properties ◽  
Young’S Modulus ◽  
Cell Size ◽  
Surface Quality ◽  
Elastic Properties ◽  
Mechanical Behaviour ◽  
High Density Polyethylene ◽  
Cellular Structure ◽  
High Density ◽  
Linear Relationships

This paper presents the mechanical properties of a collection of high density Polyethylene based foams. The produced materials are characterised by a reduction in density up to 60%, an excellent surface quality, cell sizes in the microcellular range (around 50 microns) and a multi-structured cellular structure (cranial structure) with dense skin and foamed core. The mechanical properties of these materials showed linear relationships between Young’s modulus and density for densities above 0.7 g/cm3. In addition, variations in the cell size did not influence the elastic properties.

scholarly journals The High Density Polyethylene Composite with Recycled Radiation Cross-Linked Filler of rHDPEx

Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1361 ◽  
Author(s):  
David Manas ◽  
Miroslav Manas ◽  
Ales Mizera ◽  
Pavel Stoklasek ◽  
Jan Navratil ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Behaviour ◽  
Composite Structure ◽  
High Density Polyethylene ◽  
Industrial Waste ◽  
Room Temperature ◽  
High Density ◽  
Polyethylene Composite ◽  
Processing Properties ◽  
Better Than

This article discusses the possibilities of using radiation cross-linked high density polyethylene (HDPEx) acting as a filler in the original high density polyethylene (HDPE) matrix. The newly created composite is one of the possible answers to questions relating to the processing of radiation cross-linked thermoplastics. Radiation cross-linked networking is—nowadays, a commonly used technology that can significantly modify the properties of many types of thermoplastics. This paper describes the influence of the concentration of filler, in the form of grit or powder obtained by the grinding/milling of products/industrial waste from radiation cross-linked high density polyethylene (rHDPEx) on the mechanical and processing properties and the composite structure. It was determined that, by varying the concentration of the filler, it is possible to influence the mechanical behaviour of the composite. The mechanical properties of the new composite—measured at room temperature, are generally comparable or better than the same properties of the original thermoplastic. This creates very good assumptions for the effective and economically acceptable, processing of high density polyethylene (rHDPEx) waste. Its processability however, is limited; it can be processed by injection moulding up to 60 wt %.

scholarly journals INFLUENCE OF COCONUT SHELL ADDITION ON PHYSICO-MECHANICAL PROPERTIES OF WOOD PLASTIC COMPOSITES1

2018 ◽  
Vol 41 (4) ◽  
Author(s):  
Éverton Hillig ◽  
Ignacio Bobadilla ◽  
Ademir José Zattera ◽  
Érick Agonso Agnes de Lima ◽  
Raquel Marchesan
Keyword(s):  
Mechanical Properties ◽  
Loblolly Pine ◽  
High Density Polyethylene ◽  
Wood Flour ◽  
High Density ◽  
Coconut Shell ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Cellulosic Material ◽  
Thermoplastic Matrix

ABSTRACT In this study, composites with three types of thermoplastic matrix and cellulosic material in a proportion of 40% were produced. The three thermoplastic matrices were high density polyethylene (HDPE), polypropylene (PP) and low density polyethylene (LDPE), and the cellulosic materials were pure wood flour (Pinus taeda L) or a mixture of wood flour and coconut shell flour (Cocus nucifera L) in equal ratios. The objective was to evaluate the influence of addition of coconut shell on the physico-mechanical properties (density, strength and rigidity) and the distribution of the cellulosic material in the thermoplastic matrix of the manufactured composites. It was found that the composites had a satisfactory distribution of wood flour in thermoplastic matrices, but the addition of coconut shell promoted bubble formation in the resulting pieces and, thus, interfered with the material properties. The use of a coupling agent promoted interfacial adhesion (cellulose - thermoplastic matrix), which was better in high density polyethylene composites, followed by polypropylene and low density polyethylene. In general, the coconut shell addition caused a decrease of all properties compared to composites made with Loblolly Pine. In addition, the interactions between thermoplastic type and cellulosic matrix type have been statistically confirmed, which caused variations in the studied properties

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