Effect of the Coupling Agent on the Properties of PNC-Based Wood/Plastic Composites

2006 ◽  
Vol 26 (8-9) ◽  
Author(s):  
S.-K. Yeh ◽  
A. Al-Mulla ◽  
R.K. Gupta
Keyword(s):  
Coupling Agent ◽  
Wood Plastic Composites ◽  
Plastic Composites

Adhesion Investigations of Systems Based on Birch Plywood and Wood Plastic Composites

2020 ◽  
Vol 850 ◽  
pp. 76-80
Author(s):  
Jānis Kajaks ◽  
Karlis Kalnins ◽  
Juris Matvejs
Keyword(s):  
Adhesive Strength ◽  
Coupling Agent ◽  
Bonding Strength ◽  
Considerable Increase ◽  
Adhesive Bonding ◽  
Water Resistance ◽  
Wood Plastic Composites ◽  
Maleated Polypropylene ◽  
Plastic Composites ◽  
Pp Composites

One type of birch plywood production by-product: plywood sanding dust (PSD) and virgin polypropylene (PP) composites adhesive activity was investigated. To improve of the WP (PP+40 wt.% PSD) composites sheets as overlay bonding strength against birch plywood surface and water resistance of these laminated systems the industrially produced WPC material was modified with maleated polypropylene wax (MAPP) additives. These studies showed possibility of the usage of presented by-product as an excellent reinforcement for PP based wood plastic composites and addition of the coupling agent (MAPP) gives the considerable increase of adhesive activity of the used WPC. Due to the presence of MAPP (up to 4%) significantly increases not only adhesive strength of the laminates but also water resistance of the laminated sandwich specimens. As the example adhesive bonding strength could reach 2,74 N/mm2 and increases up to 4 times to compare with unmodified WPC adhesives.

Preparation and Mechanical Properties of the Environmentally Friendly Wood-Plastic Composites

2013 ◽  
Vol 690-693 ◽  
pp. 1008-1012
Author(s):  
Hong Wei Lu ◽  
Meng Yao Li ◽  
Bin Zhang ◽  
Hua Yu ◽  
Xiao Niu Jiang
Keyword(s):  
Mechanical Properties ◽  
Coupling Agent ◽  
Impact Test ◽  
Wood Flour ◽  
Wood Plastic Composites ◽  
Grafting Reaction ◽  
Melt Grafting ◽  
Plastic Composites ◽  
Tensile Tester ◽  
Silane Coupling

Good bonding at the interface between HDPE (High density polyethylene) and wood flour was achieved by adding MA (Maleic anhydride) as surface-reactive additive and WD-50 (3-aminopropyltriethoxysilane) as coupling agent products. HDPE-g-MA was prepared by melt grafting polymerization in the presence of DCP (Dicumyl peroxide) using a Hakke Rheocord. The FTIR spectra conformed that MA was successfully grafted onto HDPE and the effects of DCP and MA contents on grafting reaction were also studied. The effects of silane coupling agent (WD-50), wood flour and HDPE-g-MA contents on the mechanical properties of the HDPE-based wood-plastic composites were investigated by electronic tensile tester and impact test enginery. The results indicated that WD-50 (with the content of 2 wt%) and HDPE-g-MA (with the content of 10 wt%) effectively improved mechanical properties of the composite materials.

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