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The release date:2016-08-31 14:57:04 Visits:593

WPC: WPC (Wood-Plastic Composites, WPC) is booming at home and abroad in recent years, a new class of composite materials, refers to the use of polyethylene, polypropylene and polyvinyl chloride, etc., instead of the usual resin adhesive, with more than 50% mixing the above wood flour, rice husk, straw and other waste plant fiber into a new wood materials, plastics processing and then by extrusion, molding, injection molding process to produce plates or profiles. Mainly used in building materials, furniture, logistics and packaging industries. Plastic and wood powder by mixing after hot extruded sheet, called wood-plastic composite extrusion sheet. main feature WPC basis of high density polyethylene and wood fiber, determine certain characteristics of its own and has a plastic timber. 1) good processing performance wood-plastic composites containing plastics and fibers, therefore, has a timber with similar processing performance , Sawing, nailing, planing, use woodworking appliance can be completed, and the nail holding power is superior to other synthetic materials. Mechanical properties superior to wood materials. Nail holding power is generally 3 times of wood, particleboard five times. 2) good strength properties WPC containing plastic, which has good elastic modulus. Further, since the fiber-containing and sufficiently mixed with the plastic, which has a hardwood with considerable compressive, flexural and other mechanical properties, and its durability is better than ordinary wood. High surface hardness, typically 2 - 5 times that of wood. 3) has a water-resistant, corrosion resistance and long service life compared to wood materials and wood products, strong anti-acid, water, corrosion resistance, and do not breed bacteria, can not easily be moth-eaten, not long fungi. Long life, up to 50 years. 4) excellent performance adjustable by additives, can be polymerized plastics, foaming, curing, modification change, thereby WPC change of density, strength and other characteristics, but also can reach the special requirements of anti-aging, anti-static, flame retardant and so on. 5) having an ultraviolet light stability, good coloring property. 6) Its biggest advantage is that recycling Po, 100% recovery and reproduction. Can decompose, will not cause the "white pollution ", It is the real green products. 7) the production of a wide range of sources of raw materials WPC plastic raw materials mainly high-density polyethylene or polypropylene, wood fiber can be wood flour, bran or wood fiber, also need a small amount of additives and other processing aids. 8) as needed, into any shape and size. PVC: PVC, the abbreviation PVC (Polyvinyl chloride), vinyl chloride monomer (vinyl chloride monomer, referred to as VCM) peroxide, azo compound initiator; or by light, heat acting as a free radical polymerization mechanism polymerization of the polymer. Vinyl chloride homopolymers and copolymers of vinyl chloride resin system call. Pure PVC has a density of 1.4g / cm3, adding plasticizers and fillers such as density PVC plastic parts generally 1.15-2.00g / cm3 Hard PVC has good tensile, flexural, compressive strength and impact resistance, can be used alone as a structural material. Soft PVC softness, elongation, cold resistance will increase, but the brittleness, hardness, tensile strength will be reduced. PVC has good electrical insulation properties, it can be used for low-frequency insulation materials, their chemical stability or. Due to the poor thermal stability of PVC, prolonged heating can cause decomposition, release HCL gas, so PVC color, so its narrow range of applications, the use of temperature is generally between -15 to 55 degrees.