Phenol-formaldehyde compressed wood composite

Phenol-Formaldehyde Compressed Wood Composite (Com-preg). This composite is similar to Impreg in that the veneer, green... 

Compressed wood-phenolic-formaldehyde composite. Dried treated wood compressed during curing to collapse cell structure Density 1.3 to 1.4. ASE about 95%... 

Compreg Compressed wood- phenolic-formaldehyde composite Wood soaked in water or alcohol solution of P-F, dried, heated, and compressed during polymerization cell structure collapsed, density 1.3-1.4, ASE about 95 % resistant to decay strength, hardness, and abrasion increased Cutlery handles, electrical insulators, thin veneers... 

Tests with composite wood products have also yielded certain volatiles of different preservatives, in addition to formaldehyde. These can be different volatile solvents or free monomers and plasticisers or from coatings applied to them, as well as from the adhesives. The latter are commonly phenol- or formaldehyde-based and they are used in the manufacture of compressed fibre, composite board and plywood materials. As far as the coatings are concerned, some products that are sealed with a polymeric film or coating that can trap residual volatiles and allow a slow gradual release of VOC over a period of time). The binding agents used in particle board and plywood can contain volatile phenols and traces of residual solvents. 

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