Mechanical properties of biorenewable fiber/plastic composites

2004 ◽  
Vol 93 (5) ◽  
pp. 2484-2493 ◽  
Author(s):  
James L. Julson ◽  
Gurram Subbarao ◽  
D. D. Stokke ◽  
Heath H. Gieselman ◽  
K. Muthukumarappan
Keyword(s):  
Mechanical Properties ◽  
Plastic Composites ◽  
Fiber Plastic

Simultaneous optimization of the mechanical properties of postconsumer natural fiber/plastic composites: Processing analysis

2014 ◽  
Vol 49 (11) ◽  
pp. 1355-1367 ◽  
Author(s):  
Jean Luc Toupe ◽  
Albert Trokourey ◽  
Denis Rodrigue
Keyword(s):  
Mechanical Properties ◽  
Natural Fiber ◽  
Simultaneous Optimization ◽  
Plastic Composites ◽  
Fiber Plastic ◽  
Composites Processing

scholarly journals Combining Fiber Enzymatic Pretreatments and Coupling Agents to Improve Physical and Mechanical Properties of Hemp Hurd/Wood/Polypropylene Composite

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6384
Author(s):  
Xiaoping Li ◽  
Mingli Qiang ◽  
Mingwei Yang ◽  
Jeffrey J. Morrell ◽  
Neng Zhang
Keyword(s):  
Mechanical Properties ◽  
Coupling Agent ◽  
Natural Fiber ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
Coupling Agents ◽  
Hemp Fiber ◽  
Plastic Composites ◽  
Fiber Plastic ◽  
Hemp Hurd

Natural fiber/plastic composites combine the low density and excellent mechanical properties of the natural fiber with the flexibility and moisture resistance of the plastic to create materials tailored to specific applications in theory. Wood/plastic composites (WPC) are the most common products, but many other fibers are being explored for this purpose. Among the more common is hemp hurd. Natural fibers are hydrophilic materials and plastics are hydrophobic, therefore one problem with all of these products is the limited ability of the fiber to interact with the plastic to create a true composite. Thus, compatibilizers are often added to enhance interactions, but fiber pretreatments may also help improve compatibility. The effects of pectinase or cellulase pretreatment of wood/hemp fiber mixtures in combination with coupling agents were evaluated in polypropylene panels. Pretreatments with pectinase or cellulase were associated with reduced thickness swell (TS24h) as well as increased modulus of rupture and modulus of elasticity. Incorporation of 5.0% silane or 2.5% silane/2.5% titanate as a coupling agent further improved pectinase-treated panel properties, but was associated with diminished properties in cellulase treated fibers. Combinations of enzymatic pretreatment and coupling agents enhanced fiber/plastic interactions and improved flexural properties, but the effects varied with the enzyme or coupling agent employed. The results illustrate the potential for enhancing fiber/plastic interactions to produce improved composites.

scholarly journals Influence of a bark-filler on the properties of PLA biocomposites

2021 ◽  
Vol 56 (15) ◽  
pp. 9196-9208
Author(s):  
Piotr Borysiuk ◽  
Piotr Boruszewski ◽  
Radosław Auriga ◽  
Leszek Danecki ◽  
Alicja Auriga ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Contact Angle ◽  
Poly Lactic Acid ◽  
Moisture Resistance ◽  
Hammer Mill ◽  
Total Surface Energy ◽  
Strength Parameters ◽  
Humidity Resistance ◽  
Plastic Composites ◽  
Two Stages

AbstractIn this study, wood plastic composites (WPC) made of poly(lactic acid) PLA and a bark-filler were manufactured. Two degrees of bark comminution (10–35 mesh and over 35 mesh) and varied content of bark (40, 50 and 60%) were investigated. The studied panels were compared with analogically manufactured HDPE boards. The manufacture of composites involved two stages: at first, WPC granules with the appropriate formulation were produced using the extruder (temperatures in individual extruder sections were 170–180 °C) and crushing using a hammer mill after cooling the extruded composite; secondly, the obtained granulate was used to produce boards with nominal dimensions of 300 × 300 × 2.5 mm3 by flat pressing in a mold, using a single daylight press at a temperature 200 °C. The study proved that comminuted bark can be applied as a filler in PLA composites. However, an increase in bark content decreased mechanical properties (MOR, MOE) and deteriorated humidity resistance (high TS and WA) of the panels. Along with the increase in bark content, an increase in the contact angle of the composite surfaces and a decrease in the total surface energy were noted. It was also found that PLA composites have higher strength parameters and lower moisture resistance compared to HDPE composites with the same bark content. Graphical abstract

Mechanical Properties of 3D-Printed Wood-Plastic Composites

2018 ◽  
Vol 777 ◽  
pp. 499-507 ◽  
Author(s):  
Ossi Martikka ◽  
Timo Kärki ◽  
Qing Ling Wu
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
3D Printing ◽  
Impact Strength ◽  
Polylactic Acid ◽  
Wood Plastic Composite ◽  
Wood Plastic Composites ◽  
Plastic Composite ◽  
Plastic Composites ◽  
3D Printed

3D printing has rapidly become popular in both industry and private use. Especially fused deposition modeling has increased its popularity due to its relatively low cost. The purpose of this study is to increase knowledge in the mechanical properties of parts made of wood-plastic composite materials by using 3D printing. The tensile properties and impact strength of two 3D-printed commercial wood-plastic composite materials are studied and compared to those made of pure polylactic acid. Relative to weight –mechanical properties and the effect of the amount of fill on the properties are also determined. The results indicate that parts made of wood-plastic composites have notably lower tensile strength and impact strength that those made of pure polylactic acid. The mechanical properties can be considered sufficient for low-stress applications, such as visualization of prototypes and models or decorative items.

scholarly journals Mechanical Properties and Morphology of Wood Plastic Composites Produced with Thermally Treated Beech Wood

BioResources ◽  
2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Farhad Arwinfar ◽  
Seyyed Khalil Hosseinihashemi ◽  
Ahmad Jahan Latibari ◽  
Amir Lashgari ◽  
Nadir Ayrilmis
Keyword(s):  
Mechanical Properties ◽  
Beech Wood ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Thermally Treated

Critical Issues in Extrusion Foaming of Plastic/Woodfiber Composites

2005 ◽  
Vol 24 (6) ◽  
pp. 347-362 ◽  
Author(s):  
G.M. Rizvi ◽  
G. Guo ◽  
C.B. Park ◽  
Y.S. Kim
Keyword(s):  
Impact Strength ◽  
Wood Fiber ◽  
Plastic Composites ◽  
Material Cost ◽  
Fiber Plastic ◽  
Extrusion Foaming ◽  
Critical Issues ◽  
Enhanced Properties ◽  
Processing Techniques

Foaming of wood-fiber/plastic composites (WPC) with a fine-celled structure can offer benefits such as improved ductility and impact strength, lowered material cost, and lowered weight, which can improve their utility in many applications. However, foaming of WPC is still a poorly understood art. This paper presents a review of material published, which address the various critical issues particularly in extrusion foaming of WPC, and the proposed processing techniques and strategies, for producing artificial wood with enhanced properties.

scholarly journals Effect of Natural Fiber (NF) Mix on Mechanical Strength of NF Plastic Composites (NFPC)

2019 ◽  
Vol 9 (1) ◽  
pp. 5663-5667
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Natural Fiber ◽  
Fiber Type ◽  
Natural Fibers ◽  
Natural Fibre ◽  
Additional Advantage ◽  
Plastic Composites ◽  
Twin Screw ◽  
The Impact

Natural fibers from plants are gaining importance and may substitute wood in the production of wood plastic composites (WPC). To ensure continuity of fiber supply and sustainability of WPC industries, fibers of various types could be mixed together to obtain Mix WPC. However, research need to be carried out to identify the contribution of different fiber type collectively to the mechanical properties of Mix natural fiber polymer composite (NFPC). In this study, preliminary work on the use of natural fibre (NF) such as kenaf, sugar palm and pineapple leaf fibers in the preparation of Mix NFPC were carried out. Four different fiber mix samples with different fiber ratio and size were formulated using polypropylene (PP) as the polymer matrix. Montmorrilonite (MMT) filler was added at constant amount for enhancement of composite mechanical properties. Samples were mixed and prepared using a twin screw extruder and mini injection moulding resepectively. Individual fibers and NFPC prepared were characterized using thermogravimetric analyzer (TGA). Tensile, flexural and impact strength of the composites were determined. Generally, it was found that addition of fiber mix at 50% fiber loading enhance the tensile and flexural strength of the various NFPC with minimal exceptions. The impact strength of the composites were comparable to that of blank PP implying that addition of fiber gives additional advantage besides being eco-friendly. It was also found that higher kenaf loading and different size of fiber mix contribute positively to the various strengths measured. In addition to that, composition of individual fibers also contribute to the mechanical properties of the NFPCs

Effect of stacking sequence on mechanical properties neem wood veneer plastic composites

2018 ◽  
Author(s):  
M. Nagamadhu ◽  
G. C. Mohan Kumar ◽  
P. Jeyaraj
Keyword(s):  
Mechanical Properties ◽  
Stacking Sequence ◽  
Wood Veneer ◽  
Plastic Composites
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