Wood-plastic impregnated

Plastic-impregnated wood. 2. Engineered wood. TA418.9.C6K5838 2007 620.F2-dc22... 

In early work on plastic-impregnated wood, it was found that traditional water-based wood glues could be used, especially the hot-setting ones 18, 19), However, longer assembly times, which allowed reductions in glue-film water content before clamping, led to improved results. 

Phenolic phenol formaldehydes (PFs) are the low-cost workhorse of the electrical industry (particularly in the past) low creep, excellent dimensional stability, good chemical resistance, good weatherability. Molded black or brown opaque handles for cookware are familiar applications. Also used as a caramel colored impregnating plastics for wood or cloth laminates, and (with reinforcement) for brake linings and many under-the-hood automotive electricals. There are different grades of phenolics that range from very low cost (with low performances) to high cost (with superior performances). The first of the thermosets to be injection-molded (1909). 

The areal porosity can be measured using optical methods. Before measurements, the sample sections must be polished. It is often necessary to impregnate the pores with some material such as wax, plastic, or Wood s metal to make the pores more visible or to distinguish between interconnected and blocked pores. When impregnating the sample from outside, evidently only the interconnected pores will be penetrated (31). 

Engineering Design Features. Equipment such as pumps and motors have been designed for outdoor exposure pipelines are well insulated and weatherproofed, jacketed or steam-traced to take care of widely fluctuating temperatures. Weather-resistant metals, materials, and finishes (stainless steel, plastic coatings, impregnated wood, etc.) are significant factors. 

Molded black or brown opaque handles for cookware have been familiar applications. Also used as a caramel colored impregnating plastics for wood or cloth laminates, and (with reinforcement) for brake linings and many under-the-hood automotive electrical components since the 1940s. Standard phenolics usually have wood flour filler. 

Prepreg wood (plastic-impregnated reinforced wood) used to construct airplane propellers. 

CAS 1189-08-8 EINECS/ELINCS 214-711-0 Uses Crosslinking monomer for preparation of inks, photoresists for printed circuit boards, photopolymer printing plates, wire and cable coalings reactive diluent for PVC plastisols, rubber crosslinking, glass reinforc plastics, adhesives, sealants, impregnated wood composites, and other surf, coatings... 

Basically a polymer composite contains a polymer and a nonpolymer. While polymer composites include such compositions as foams and some types of gels, this chapter will be restricted to compositions of one or more polymers and one or more nonpolymers in the bulk state. There are a few points of overlap between blends and composites polymer-impregnated wood (where wood itself is a natural polymer blend), and organic fiber (e.g., polyester) reinforced plastics constitute examples. Compositions of special interest to this chapter include glass fiber reinforced plastics, carbon black reinforced rubber, and mineral-pigmented coatings. 

Composite doors. Typically flush design and consisting of a manufactured core material with chemically impregnated wood-edge banding and untreated wood-face veneers, or laminated plastic faces, or surrounded by and encased in steel. 

Typical Use Aircraft interiors. Automotive interiors. Furniture luggage Typical Use Wood, some plastics, impregnated paper. ... 

Plastic laminated sheets produced in 1913 led to the formation of the Formica Products Company and the commercial introduction, in 1931, of decorative laminates consisting of a urea—formaldehyde surface on an unrefined (kraft) paper core impregnated with phenoHc resin and compressed and heated between poHshed steel platens (8,10). The decorative surface laminates are usually about 1.6 mm thick and bonded to wood (a natural composite), plywood (another laminate), or particle board (a particulate composite). Since 1937, the surface layer of most decorative laminates has been fabricated with melamine—formaldehyde, which can be prepared with mineral fiUers, thus offering improved heat and moisture resistance and allowing a wide range of decorative effects (10,11). 

Cellulose, which is more fibrous than wood flour, is used as a filler for urea and melamine plastics. Melamine dishware is a laminated structure consisting of molded resin-impregnated paper. Starch and soybean derivatives are biodegradable, and the rate of disintegration of resin composites containing these fillers may be controlled by the amount of these fillers present in polymers. 

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