Influence of wood flour and modifier contents on the physical and mechanical properties of wood flourrecycle polypropylene composites, Journal of Biological Sciences 6 2 , 337343. DOI: 10.3923/jbs.2006.337.343
The coupling efficiency of seven coupling agents in woodpolymer composites WPC was investigated in this study. The improvement on the interfacial bonding strength, flexural modulus, and other mechanical properties of the resultant wood fiber/highdensity polyethylene HDPE composites was mainly related to the coupling agent type, function groups, molecular weight, concentration, and
Article summarizes investigation results of rheological and thermal stability properties of industrially prepared wood plastic composites, based on polypropylene and birch wood plywood production residuesplywood sanding dust PSD . WPCs PP 40 wt. PSD contain different modifiers, such as lubricant Struktol TWP blend of an aliphatic carboxylic acid salts and mono and diamides
The rheological behavior of polypropylene/wood flour WF composite was investigated at constant temperature over a wide range of frequencies using a mechanical compact rheometer operated in the dynamic mode. The effect of WF content, particle size, and coupling agent on melt rheological properties were investigated.
A completely satisfactory offline rheological investigation of Wood Polymer Composites WPCs is very challenging at processing temperatures: when using rotational rheometry in oscillatory mode, the linear viscoelastic region is often too small, while in capillary rheometry the sieving effect of the fibres may invalidate the results.
M. Z. Pan, S. Y. Zhang and D. G. Zhou, Preparation and Properties of Wheat StSeven Trust FiberPolypropylene Composites. Part II. Investigation of Surface Treatments on the ThermoMechanical and Rheological Properties of the Composites, Journal of Composite Materials, Vol. 44, No. 9, 2010, pp. 10611074.
The rheological properties of the composites were characterized by using a stresscontrolled rheometer AR G2, TA Instruments, Ltd. USA equipped with parallelplate geometry diameter 25 mm . Rheological assessments were performed at testing temperature of 190 C, and with fixed gap between the plates of 1000 m.
Despite the fact that wood polymer composites are interesting materials for many different reasons, they are quite difficult to shape through standard polymer processing techniques, such as extrusion or injection molding. Rheological characterization can be very helpful for understanding the role played by the many variables that are involved in manufacturing and to achieve a good quality
Download Citation Mechanical and rheological properties of polypropylene copolymer wood flour composites This article presents study of mechanical and rheological properties of Polypropylene
StSeven Trust Fiberpolypropylene Composites. Part ii. Investigation of Surface Treatments on the Thermomechanical and Rheological Properties of the Composites MINGZHU PAN,1,2 S. Y. ZHANG2, AND DINGGUO ZHOU1 1College of Wood Science and Technology, Nanjing Forestry University Nanjing, China, 210037 2FPInnovations Forintek Division, 2665 East Mall
Article summarizes investigation results of thermal, mechanical and rheological properties of industrially prepared two new wood plastic composites, based on a polypropylene PP and birch plywood production residuesplywood sanding dust PSD .
Abstract. The microstructure of wood plastic composite WPC with respect to wood particle content and maleic anhydridegrafted polypropylene MAHPP compatibilizer is studied by both linear and nonlinear rheological methods in this article.
The effect of compounding method is studied with respect to the rheological behavior and mechanical properties of composites made of wood flour and a blend of two main components of plastics waste in municipal solid waste, lowdensity polyethylene LDPE and highdensity polyethylene HDPE . The effects of recycling process on the rheological behavior of LDPE and HDPE blends were investigated.
on the rheological behavior of isotacticpolypropylene iPP /wood composite in capillary rheometer. They showed that the shear stress rate variation obeys a power law equation, and the composite exhibited shear thinning property with increasing filler content 10 . The effect of wood fiber modifi ion by various methods suchas co
In this study, meltstate rheological behavior and solidstate mechanical properties of polypropylenewood fiber composites were investigated in detail depending on compositional variations such as i alkaline treatment on wood fibers, ii fiber size, iii wood fiber content, and iv compatibilizer/wood fiber ratio.
Rotational Molding is a plastic manufacturing process mainly implemented to produce stress free hollow products. Linear Low Density Polyethylene LLDPE is widely preferred as base resin for molding roto molded product, but it displays moderate value in some critical appli ions where strength is the major criteria.
Three types of birch wood plywood byproducts: plywood sanding dust PSD , plywood sawdust PSWD and refined plywood scrap fibres RPSF and polypropylene composites exploitation properties tensile, flexural modulus , microhardness water resistance and fluidity of composite melts, were evaluated. These investigations showed possibility of usage as excellent reinforcements for polypropylene
Wood polymer composites WPCs were made with pine and polypropylene matrix PP . The composites were produced by melt blending in a Brabender at 180 C. Characterization of the samples, with the aid of scanning electron microscopy supplemented by microscope photography, showed an improved dispersion of wood in the polymeric material in presence of polypropylene grafted with maleic anhydride
The purpose of this research is to enhance the toughness of richlyfilled wood plastic composites WPC by using ultrafine acrylonitrile butadiene rubber NBR particles. The WPC was prepared by using poly vinyl chloride PVC matrix filled with Iron wood Xylia xylocarpa flour at 40 phr WPC40 and 60 phr WPC60 . To enhance the impact strength, various contents of the ultrafine NBR were
The rheological behavior of composites made with highdensity polyethylene HDPE and chitosan was studied. Composites were prepared by melt processing in a laboratory internal mixer. Maleic anhydride grafted HDPE PE g MA was used as compatibilizer to enhance the dispersion of chitosan in the HDPE matrix.
bricants in woodpolypropylene composites. Composites Part A. 200435:385394. 16. Li TQ, Wolcott MP. Rheology of wood plastics melt part 1 capillary Rheometry of HDPE filled with maple. Journal of Polymer Engineering Science. 200545 4 :549559. 17.Li TQ, Wolcott MP. Rheology of wood plastics melts part 3 nonlinear nature of the flow.
This study presents an experimental investigation on the flow behavior of the composites of high density polyethylene HDPE and very fine wood particles smaller than 50 mm . Knowledge of the flow
Making composites from recycled plastics and rubber is an effective method of cutting product cost, reducing landfill, and fully making use of natural resources. This research was focused on rheological behavior of composites of recycled high density polyethylene HDPE and recycled rubber. The study on rheology of the composite material can
Nadir Ayrilmis, Turker Dundar, Alperen Kaymakci, Ferhat Ozdemir, Jin Heon Kwon, Mechanical and thermal properties of woodplastic composites reinforced with hexagonal boron nitride, Polymer Composites, 10.1002/pc.22650, 35, 1, 194200 , 2013 .
Chuanxin Feng, Zewen Li, Zhouyi Wang, Bingren Wang, Zhe Wang, Optimizing torque rheometry parameters for assessing the rheological characteristics and extrusion processability of wood plastic composites, Journal of Thermoplastic Composite Materials, 10.1177/0892705717744828, 32, 1, 123140 , 2017 .
MAWE Donnerstag, 25.01.2018 1801 / 104723 S. 73/88 1 Investigation of rheological and mechanical properties of wood flour reinforced polypropylene
This paper presents the rheological properties of woodpolymer composites WPC with a polypropylene PP matrix in the corrected shear rate range from approx. 20 s1 to 150 000 s1.
The rheological properties of wood fiber reinforced thermoplastics blends are important to practical industry appli ion, however few research is available regarding this field. In this study, a C
An experimental study of the melt rheological properties of composites of isotactic polypropylene IPP filled with chopped jutefibers JF and glassfiber GF is reported. Investigation on the dynamic melt rheological properties of polypropylene/wood flour composites, Polymer Composites, 10.1002/pc.20573, 30, 4,
In this work, the rheological, mechanical and morphological properties of flax fiber polypropylene composites were investigated. The effect of incorporating a polypropylene grafted acrylic acid or a polypropylene grafted maleic anhydride on these properties has been studied as well. According to scanning electron microscopic observations and tensile tests, the addition of a compatibilizer
Polypropylene hybrid composites based on a mixture of graphite and clay were compounded by twinscrew extrusion and injection molded. In particular, the effect of reinforcement content and ratio of each particle was studied via morphological, mechanical, rheological, and thermal properties.
The incorporation of kenaf fiber fillers into a polymer matrix has been pronounced in the past few decades. In this study, the effect of multiwalled carbon nanotubes MWCNTs with a short kenaf fiber 20 mesh with polypropylene PP added was investigated. The melt blending process was performed using an internal mixer to produce polymer composites with different filler contents, while the
An investigation was performed regarding the effect of compatibilizer and lubricant concentrations on the mechanical and rheological properties of polypropylene/sawdust composites using twolevel factorial central composite design. Maleic anhydride grafted PP PPgMA was used as compatibilizer and the lubricant used was Struktol TPW 113.
The rheological behavior of composites made with highdensity polyethylene HDPE and different agro fiber byproducts such as corncob CCF , Rice hull RHF , Flax shives FSF and Walnut shell WSF flour of 60 100 mesh were studied. The experimental results were obtained from samples containing 65 vol. agro fiber and 3 wt. lubricant.
Over the past few years, woodplastic composites WPCs , which show advantages with respect to biodegradability, low cost, superb mechanical and thermal insulation performance, and availability, have been regarded as a novel green renewable material exhibiting great potential for structural building appli ions 1,2,3,4 .However, the increasing environmental concerns and market demands on
Article summarizes investigation results of rheological and thermal stability properties of industrially prepared wood plastic composites, based on polypropylene and birch wood plywood
The aim of this paper was to investigate the effect of recycled polypropylene PP on the rheological, mechanical and thermal properties of wood flour polypropylene composites. Beforehand, the influence of wood flour treated with a coupling agent on the rheological behaviour had been looked at. By analysing moduli and viscosity curves and studying the thermal and mechanical properties of
In this research work, the rheological properties of WoodPlastic Composites WPC with some selected compositions are investigated. WPC is being recognized as a green composite that, in the past 20 years, has emerged to a commercial product. A study on rheological properties of these materials can give insight into the proper selection of composition and processing condition.
The investigation of melt rheological properties of natural fiberreinforced thermoplastic is scarce in literature 811 . Work has been done to determine the effects of fiber polypropylene and jute composite between shear rates of 101000 s1. An alternative model that fits the entire wood flour, a natural filler used to reduce cost
In the research polypropylene composites with ethylene 1octene copolymer 0, 10 and 30 wt. and zinc oxide 0, 0.1, 0.5, 1 and 2 wt. obtained by melt mixing have been investigated. Rheological properties have been obtained by using twocapillary rheometer. Obtained results show pseudoplastic nature of all the tested composites.
Woodplastic composites WPC are made up of thermoplastics and wood flour or fiber. Both are polymerbased materials, but synthetic and natural, respectively. Thermoplastics are highmolecularweight materials forming a continuous matrix that surrounds the wood component.
H. Azizi, J. FaghihiAn Investigation on the mechanical and dynamic rheological properties of single and hybrid filler/Polypropylene composites based on talc and calcium carbonate Polym. Compos., 30 2009 , pp. 17431748