Wood Plastic Composites Prepared from Poly(Vinyl Chloride) and Balau Sawdust (Shorea obtusa): Mechanical Properties and N-(β-aminoethyl)-γ-aminopropyl trimethoxysilane Compatibilization

2012 ◽  
Vol 602-604 ◽  
pp. 802-806 ◽  
Author(s):  
Nawadon Petchwattana ◽  
Sirijutaratana Covavisaruch ◽  
Kamolrat Kanawang
Keyword(s):  
Vinyl Chloride ◽  
Wood Flour ◽  
Tensile Elongation ◽  
Wood Plastic Composites ◽  
Elongation At Break ◽  
Plastic Composites ◽  
Poly Vinyl Chloride ◽  
Significant Difference ◽  
Wood Particles ◽  
The Impact

Wood plastic composites (WPC) prepared from poly(vinyl chloride) (PVC) and Balau wood particles were studied in the current research. Various particles sizes of wood flour with a top cut of 45, 75, 106, 180 and 250 µm was investigated at the range of 0-80 phr. Experimental results indicated that WPC was more stiff and brittle when the Balau wood flour was applied at all compositions. There was no statistically significant difference in the tensile strength and the elongation at break among the composites with different particle sizes. Treating the composites with silane coupling agent induced increments in both the impact strength and the tensile elongation at break.

Toughening of Wood/Poly(vinyl chloride) Composites by Using Ultrafine Rubber Particles: Mechanical and Rheological Investigations

2014 ◽  
Vol 534 ◽  
pp. 25-30 ◽  
Author(s):  
Nawadon Petchwattana ◽  
Sirijutaratana Covavisaruch ◽  
Chanidapa Watkrut
Keyword(s):  
Impact Strength ◽  
Vinyl Chloride ◽  
Processing Time ◽  
Tensile Elongation ◽  
Butadiene Rubber ◽  
Elongation At Break ◽  
Plastic Composites ◽  
Poly Vinyl Chloride ◽  
Impact Modifier ◽  
The Impact

The purpose of this research is to enhance the toughness of richly-filled 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 incorporated as an impact modifier from 1-11 phr. Experimental results indicated that the NBR toughened-WPCs were tougher than that of the unmodified ones, by increasing the tensile elongation at break. The impact strength of the WPCs modified with only 5 phr of NBR was notably enhanced around 26 and 7% for WPC40 and WPC60 respectively. Rheological results revealed that the ultrafine NBR functioned not only as an impact modifier but also as a processing aid with shorter processing time and lower melt torque.

Recycling of wood–plastic composites prepared from poly(vinyl chloride) and wood flour

2012 ◽  
Vol 28 (1) ◽  
pp. 557-560 ◽  
Author(s):  
Nawadon Petchwattana ◽  
Sirijutaratana Covavisaruch ◽  
Jakkid Sanetuntikul
Keyword(s):  
Vinyl Chloride ◽  
Wood Flour ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Poly Vinyl Chloride

Evaluation of Dynamic Properties of Wood-Plastic Composites Using Split Hopkinson Bar Methods

2016 ◽  
Vol 715 ◽  
pp. 23-26
Author(s):  
Masahiro Nishida ◽  
Shun Furuya ◽  
Hirokazu Ito ◽  
Rie Makise ◽  
Masaki Okamoto
Keyword(s):  
High Strain ◽  
Dynamic Properties ◽  
Wood Flour ◽  
Impact Resistance ◽  
Strain Rates ◽  
High Strain Rates ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Pressure Bar ◽  
The Impact

Wood-plastic composites (WPCs) which consist of wood flour and plastics have been widely used as architectural materials for a long time. However, the impact resistance is not always high and basic mechanical properties at high strain rate are not fully understood. In order to clarify the tensile behavior at high strain rates, split Hokinson pressure bar method was used for WPCs consisting of polypropylene. The effects of mixing ratio on the maximum stress and elongation at break were examined at high strain rates.

Anti-Fungal and Anti-Algal Performances of Biocides Filled PVC and Wood/PVC Composites

2011 ◽  
Vol 410 ◽  
pp. 75-78 ◽  
Author(s):  
Apisit Kositchaiyong ◽  
Narongrit Sombatsompop
Keyword(s):  
Vinyl Chloride ◽  
Wood Flour ◽  
Algal Growth ◽  
Dry Weight ◽  
Inhibition Zone ◽  
Disk Diffusion Test ◽  
Poly Vinyl Chloride ◽  
Growth Performances ◽  
Wood Particles ◽  
Anti Fungal

The anti-fungal and anti-algal growth performances of wood poly (vinyl chloride) composite (WPVC) and poly (vinyl chloride) (PVC) containing either fungicides or algaecides at various concentrations were quantitatively evaluated using biological standard tests. The commercial fungicides, namely Carbendazim and IPBC in range of 10,000-50,000 ppm, and algaecides, namely Terbutryn and Isoproturon in range of 250-1,500 ppm, were incorporated into PVC and PVC composites with a fixed wood flour content of 100 pph. Disk diffusion test and dry weight technique, usingAspergillus nigeras testing fungi, were used for anti-fungal evaluation while inhibition zone test usingChlorella vulgarisas testing algae, were utilized for anti-algal evaluation. The results suggested that IPBC exhibited better anti-fungal efficiency than Carbendazim for both PVC and WPVC composites, especially at the suggested IPBC concentrations of 30,000 ppm or higher. Terbutryn showed better anti-algal efficiency than Isoproturon. The recommended loadings of Terbutryn for complete algae killing were 1,000 and 500 ppm for neat PVC and WPVC composites, respectively. The wood particles added in PVC were found to improve the anti-fungal and anti-algal properties in PVC composites, which could be regarded as “anti-microbial promoter” under the commercial biocides used in this work.

Influences of Modified Chemical Blowing Agents on Foaming of Wood Plastic Composites Prepared from Poly(Vinyl Chloride) and Rice Hull

2011 ◽  
Vol 306-307 ◽  
pp. 869-873 ◽  
Author(s):  
Nawadon Petchwattana ◽  
Sirijutaratana Covavisaruch
Keyword(s):  
Sodium Bicarbonate ◽  
Vinyl Chloride ◽  
Rice Hull ◽  
Wood Plastic Composites ◽  
Blowing Agents ◽  
Blowing Agent ◽  
Maximum Reduction ◽  
Plastic Composites ◽  
Poly Vinyl Chloride ◽  
Chemical Blowing Agents

The influences of the types of chemical blowing agent (CBA) namely endothermic, exothermic and their mixture, on the properties of the foamed poly(vinyl chloride) (PVC) and rice hull wood plastic composites (WPC) were investigated in the current research. Specifically, azodicarbonamide and sodium bicarbonate were selected to represent the exothermic the endothermic CBA respectively. Particles of sodium bicarbonate and azodicarbonamide were modified with 25 wt% citric acid and 20 wt% ZnO respectively, and they were used at 0 to 3.0 wt%. Maximum reduction of density by 45% was achieved when the exothermic CBA was applied at 2.0% by weight. Overall, the flexural properties decreased as the level of the CBA was increased from 0-2.0 wt%, but there was an upturn when the CBA reached 3.0 wt%. The mixture of exo/endothermic CBA illustrated the mechanical properties averaged between their parents.

Composites of Acrylonitrile-Butadiene-Styrene Filled with Wood-Flour

2007 ◽  
Vol 15 (5) ◽  
pp. 365-370 ◽  
Author(s):  
L.M. Matuana ◽  
S. Cam ◽  
K.B. Yuhasz ◽  
Q.J. Armstrong
Keyword(s):  
Mechanical Properties ◽  
Wood Flour ◽  
Acrylonitrile Butadiene Styrene ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Twin Screw ◽  
Rigid Pvc ◽  
Impact Modification ◽  
The Impact ◽  
Butadiene Styrene

This study examined both the use of acrylonitrile-butadiene-styrene (ABS) as a plastic matrix for wood-plastic composites (WPCs) and the effect of impact modification on the mechanical properties of ABS/wood-flour composites. Blends of ABS filled with wood flour (both pine and maple) were processed into profile shape using a conical twin-screw extruder and the mechanical properties of the resulting composites were characterised and compared to WPCs made with polyolefins (HDPE and PP) and rigid PVC matrices. Generally, WPCs made with ABS matrix outperformed their polyolefin counterparts in both flexural strength and modulus, whereas ABS-based composites had inferior strength but greater modulus than those made with rigid PVC. The impact strength of ABS/wood-flour composites was below that of wood plastic composites made with polyolefins. However, impact modification with acrylonitrile-butadiene-styrene terpolymers had some effect in toughening of the ABS/wood-flour composites.

Study on Application of Modified Polyethylene in Preparation of Wood-Plastic Composites

2010 ◽  
Vol 150-151 ◽  
pp. 379-385
Author(s):  
Qun Lü ◽  
Qing Feng Zhang ◽  
Hai Ke Feng ◽  
Guo Qiao Lai
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
Flexural Strength ◽  
High Density Polyethylene ◽  
Wood Flour ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
The Matrix ◽  
The Impact

The wood-plastic composites (WPC) were prepared via compress molding by using the blends of high density polyethylene (HDPE) and modified polyethylene (MAPE) as the matrix and wood flour (WF) as filler. The effect of MAPE content in the matrix on the mechanical properties of the matrix and WPC was investigated. It was shown that the change of MAPE content in the matrix had no influence on the tensile strength of the matrix, but markedly reduced the impact strength of the matrix. Additionally, it had significant influence on the strength of WPC. When the content of wood flour and the content of the matrix remained fixed, with increasing the content of MAPE in the matrix, the tensile strength and the flexural strength of WPC tended to increase rapidly initially and then become steady. Moreover, with the increasing of MAPE concentration, the impact strength of WPC decreased when the low content of wood flour (30%) was filled, but increased at high wood flour loading (70%).

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