pvc wood coupling agent in dentistry

Novel coupling agents for PVC/wood‐flour composites * - Shah .

Coupling agents are added to wood–plastic composites to promote adhesion between the hydrophilic wood surface and hydrophobic polymer matrix, but to date no coupling agent has been reported for PVC/wood‐fiber composites that significantly improved their performance and was also cost‐effective.

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(PDF) Novel coupling agents for PVC/wood‐flour composites

Coupling agents are added to wood–plastic composites to promote adhesion between the hydrophilic wood surface and hydrophobic polymer matrix, but to date no coupling agent has been reported for.

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US7446138B2 - Wood particle filled polyvinyl chloride .

Extruded composite compositions of PVC and wood particles containing chitosan or chitin as a coupling agent are described. The composite compositions have improved physical and mechanical properties.

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SURFACE AND INTERFACIAL CHARACTERIZATION OF WOOD-PVC .

coupling agent performance and thermal prop-erties. As a continuation of our earlier paper on the influence of maleation on graft polymerization, wettability, and interfacial adhesion in wood-PVC composites (Lu et al. 2002), thermal prop-erties of wood-PVC composites with chemical coupling were investigated in this work. The ob-

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Coupling Agent - an overview | ScienceDirect Topics

Composites containing a coupling agent absorbed either 12% or 9% depending on the coupling agent used. However, the use of a lubricant as a processing aid negated any positive effect of the coupling agent. Lin et al. (2002) reported an 18% decrease in moisture absorption when 2% coupling agent was added to 15% wood flour filled PP composite .

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THE INFLUENCE OF MALEATION ON POLYMER ADSORPTION AND FIXATION .

yellow-poplar veneer samples. Retention of coupling agent, graft rate, graft efficiency, static contact angle on treated samples, and shear strength of resultant wood-PVC laminates manufactured under hot-pressing were measured. It was shown that the relationship among graft rate, coupling agent

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Coupling agents enhance performance of wood plastic composites

Other coupling agents employed in wood-plastic composites include organosilanes, fatty acid derivatives, long-chain chlorinated paraffins, and polyolefin copolymers with acid anhydrides incorporated into the polymer backbones (instead of grafted).

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(PDF) Novel coupling agents for PVC/wood‐flour composites

Coupling agents are added to wood–plastic composites to promote adhesion between the hydrophilic wood surface and hydrophobic polymer matrix, but to date no coupling agent has been reported for .

Get Price

US7446138B2 - Wood particle filled polyvinyl chloride .

Extruded composite compositions of PVC and wood particles containing chitosan or chitin as a coupling agent are described. The composite compositions have improved physical and mechanical properties.

Get Price

THE INFLUENCE OF MALEATION ON POLYMER ADSORPTION AND FIXATION .

yellow-poplar veneer samples. Retention of coupling agent, graft rate, graft efficiency, static contact angle on treated samples, and shear strength of resultant wood-PVC laminates manufactured under hot-pressing were measured. It was shown that the relationship among graft rate, coupling agent

Get Price

CN103396620A - PVC (Polyvinyl Chloride) plastic-wood foaming .

The invention discloses a PVC (Polyvinyl Chloride) plastic-wood foaming material. The PVC plastic-wood foaming material comprises the following materials in parts by weight: 100 parts of PVC resin powder, 40-60 parts of wood powder, 1-2 parts of coupling agent, 0.5-1.0 part of lubricating agent, 2-4 parts of stabilizing agent, 1-5 parts of plasticizing agent, 1-5 parts of impact-resistant .

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Coupling agents enhance performance of wood plastic composites

Another goal is to come up with multifunctional additives, such as a single compound that acts as both a coupling agent and a lubricant. Polymers used in wood plastic composites are mostly polyolefins such as polyethylene (particularly HDPE) and PP. PVC is also used as well, particularly in windows, doors and house shingles.

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Extrusion Foaming of Wood-Fiber/Thermoplastic Composites .

Matuana, L.M. and Mengeloglu, F., "Manufacture of Rigid PVC/Wood-Flour Composite Foams Using Moisture Contained in Wood as Foaming Agent," Journal of Vinyl and Additive Technology, 8 (4): 264-270 (2002). Li, Q. and Matuana, L.M., "Foam Extrusion of HDPE/Wood-Flour Composites Using Chemical Foaming Agents," Journal of Applied Polymer Science,(2002).

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