scholarly journals The Properties of Wood Flour/Thermoplastic Polymer Composites of a High Wood Content

2005 ◽  
Vol 41 (8) ◽  
pp. 301-305 ◽  
Author(s):  
Masahiro TAKATANI ◽  
Ayumi IKEMIYA ◽  
Yoko NAGATA ◽  
Takashi KITAYAMA ◽  
Tadashi OKAMOTO
Keyword(s):  
Polymer Composites ◽  
Wood Flour ◽  
Thermoplastic Polymer ◽  
Wood Content ◽  
High Wood Content

Effect of Pistachio Twig Flour Content on the Water Uptake of Thermoplastic Polymer Composites

2012 ◽  
Vol 428 ◽  
pp. 202-205 ◽  
Author(s):  
Mohaddeseh Saffarzadeh ◽  
Mohammad Reza Masteri Farahani
Keyword(s):  
Water Absorption ◽  
Polymer Composites ◽  
Water Uptake ◽  
Wood Flour ◽  
Thermoplastic Polymer ◽  
Different Content

In this research, the water absorption of polypropylene-pistachio twig flour composite with different content pistachio twig flour were investigated. For this purpose, water absorption was determined according to modified D570 standard. The results indicated that the water absorption of composites increased with increasing of wood flour content.

scholarly journals Biofilm on the polymer composites - qualitative and quantitative microbiological analysis

2021 ◽  
Author(s):  
Dobrochna Ginter-Kramarczyk ◽  
Izabela Kruszelnicka ◽  
Michał Michałkiewicz ◽  
Przemysław Muszyński ◽  
Stanisław Zajchowski ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Wood Flour ◽  
Biological Membrane ◽  
Polymeric Materials ◽  
Active Surface ◽  
Modern Technology ◽  
Biofilm Reactor ◽  
Active Surface Area ◽  
Microbiological Analysis ◽  
Wood Polymer

Abstract Background Modern technology, which has been getting more and more recognition in the world for the last several years, is the moving bed biofilm reactor (MBBR) technology. Currently, movable biofilters made of basic polymeric materials, polyethylene and polypropylene. Methods An innovative solution in the field, mainly because of the large active surface area for biological membrane can be wood polymer composites (WPC). In the research polypropylene (PP) and polyvinyl chloride (PVC) was used as the matrix. Two types of commercial wood flour also, selected from conifers, were selected for the study: Lignocel C 120 with particle sizes in the range of 70 μm–150 μm and L9 with dimensions of 0.8–1.1 mm and wood chips, which are used on an industrial scale for the production of chipboards, were used as a filler. A quantitative and qualitative analysis of newly formed biofilms was performed. Results The study showed a direct effect of the filler and its particle size on the susceptibility to the formation of the biofilm of on the composites surface. Conclusions Polypropylene PPH 648 T and 40% wt. of L9 type wood flour was the most susceptible to biofilm formation. Pure polypropylene PPH 648 T was the least susceptible material.

Effect of adding steam-exploded wood flour to thermoplastic polymer/wood composite

2000 ◽  
Vol 46 (3) ◽  
pp. 210-214 ◽  
Author(s):  
Masahiro Takatani ◽  
Osamu Kato ◽  
Takashi Kitayama ◽  
Tadashi Okamoto ◽  
Mitsuhiko Tanahashi
Keyword(s):  
Wood Flour ◽  
Wood Composite ◽  
Thermoplastic Polymer

Thermal Behavior of the Porous Polymer Composites Based on LDPE and Natural Fillers Studied by Real Time Thermal Microscopy

2021 ◽  
Vol 899 ◽  
pp. 644-659
Author(s):  
Elena A. Grigorieva ◽  
Anatoly A. Olkhov ◽  
Oleg V. Gradov ◽  
Margaret A. Gradova
Keyword(s):  
Composite Material ◽  
Thermal Behavior ◽  
Polymer Composites ◽  
Polymer Composite ◽  
Corn Starch ◽  
Wood Flour ◽  
Porous Polymer ◽  
Thermal Microscopy ◽  
Particle Size Fractions ◽  
Composite Samples

Foaming of the biodegradable polymer composites and melting of the gas-filled materials were studied using thermal microscopy. Composite materials under investigation were based on the low density polyethylene and natural products used as the polymer composite fillers: wood flour and corn starch. Porous structure of the composite material was obtained using a chemical porogen “Hydrocerol BIF”. It has been shown that the foaming and melting processes occur differently in the polymer composite samples containing either different amount of the fillers or the same content of the filler with different particle size fractions. Thermal behavior of the composite samples was shown to be different from the behavior of pure polyethylene, which indicates non-additivity (superadditivity) of the contribution of the above components to the thermal behavior of the final composite material. All the results obtained using heating stage (hot stage) microscopy were in good agreement with the SEM and DSC data.

Pull-out method for direct measuring the interfacial shear strength between short plant fibers and thermoplastic polymer composites (TPC)

Holzforschung ◽  
2014 ◽  
Vol 68 (1) ◽  
pp. 17-21 ◽  
Author(s):  
Hao Wang ◽  
Genlin Tian ◽  
Hankun Wang ◽  
Wanju Li ◽  
Yan Yu
Keyword(s):  
Shear Strength ◽  
Polymer Composites ◽  
Interfacial Shear Strength ◽  
Interfacial Shear ◽  
Thermoplastic Polymer ◽  
Plant Fibers ◽  
Important Indicator ◽  
Pull Out ◽  
Research Activities ◽  
The Matrix

Abstract Thermoplastic polymer composites reinforced with short plant fiber are worldwide in focus of research activities. Interfacial shear strength (IFSS) is an important indicator for evaluating the bonding quality between the fiber and the matrix polymer. However, the direct measurement of IFSS is especially difficult in the case of short fibers. In the present article, a method is proposed to this purpose, which is related to the known “fiber pulling out” methodology. In the case of single bamboo fibers, the IFSS in a polypropylene (PP) matrix was on, an average, of 5 MPa, which can be considered as weak. Scanning electron microscopy images revealed a rough inner surface in PP cavities left after fiber pulling out. This is direct evidence that a mechanical interlocking mechanism is active in the interphase between the hydrophilic fibers and the hydrophobic matrix.

A preliminary study on bladder-assisted rotomolding of thermoplastic polymer composites

2007 ◽  
Vol 26 (1) ◽  
pp. 21-32 ◽  
Author(s):  
A. Salomi ◽  
A. Greco ◽  
F. Felline ◽  
O. Manni ◽  
A. Maffezzoli
Keyword(s):  
Polymer Composites ◽  
Thermoplastic Polymer ◽  
Preliminary Study
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