Olefin-styrene-acrylonitrile plastic

J. L. Ziska, "Olefin-Modified Styrene-Acrylonitrile" in R. Juran, ed., Modern Plastics Encyclopedia 1989,65(11), McGraw-Hill, Inc., New York, p. 105. 

Radiation-induced curing of plastic coatings has been discussed,8 and radiation-induced polymerization in the solid state reported.87 The radiation chemistry of epoxy-containing electron resists88 and polycondensation induced by ionizing radiation in the urea-formaldehyde system88 have been described. Radiation-induced copolymerization of the following pairs of monomers has been achieved ethylene-hexafluoropropylene,80 tetrafluoroethylene-propylene,81 tetrafluoroethylene-hexafluoropropylene,82 hexafluoroacetone-a-olefins,83 MMA-di- and tri-methacrylates,84 styrene-acrylonitrile,85 buta-1,3-diene-acrylonitrile,88 and acenaphthylene-vinylcarbazole.87... 

Styrene plastics Acrylonitrile polypous Olefin polypous). 

Over 70% of the total volume of thermoplastics is accounted for by the commodity resins polyethylene, polypropylene, polystyrene, and poly(vinyl chloride) (PVC) (1) (see Olefin polymers Styrene plastics Vinyl polymers). They are made in a variety of grades and because of their low cost are the first choice for a variety of appHcations. Next in performance and in cost are acryhcs, ceUulosics, and acrylonitrile—butadiene—styrene (ABS) terpolymers (see... 

The isoprene units in the copolymer impart the ability to crosslink the product. Polystyrene is far too rigid to be used as an elastomer but styrene copolymers with 1,3-butadiene (SBR rubber) are quite flexible and rubbery. Polyethylene is a crystalline plastic while ethylene-propylene copolymers and terpolymers of ethylene, propylene and diene (e.g., dicyclopentadiene, hexa-1,4-diene, 2-ethylidenenorborn-5-ene) are elastomers (EPR and EPDM rubbers). Nitrile or NBR rubber is a copolymer of acrylonitrile and 1,3-butadiene. Vinylidene fluoride-chlorotrifluoroethylene and olefin-acrylic ester copolymers and 1,3-butadiene-styrene-vinyl pyridine terpolymer are examples of specialty elastomers. 

Wood flour starts to deteriorate at over 200 °C. Therefore, it is desirable for the plastic of a WPC to have a melting point of 200°C or less. A general-purpose plastic for this use is olefinic resin (polyethylene and PP). The plastic material is selected according to the use of WPC. The plastic that is suitable for abundant exterior use, that is olefinic resin, is generally used. In addition, styrene-type resin (acrylonitrile butadiene styrene (ABS), AS, etc.) and vinyl chloride resin are also used. Moreover, as wood flour is a natural material, a plastic of vegetal origin is used for manufacturing a completely bio-based material. 

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