Compared with other materials, plastic plate has the following characteristics
<1> light weight and strong <BR> <2> easy to produce large-scale production, cheap <3> wide range of uses, easy to color, part of the high temperature <5> surface gloss, Or opaque <6> are mostly good insulators
Plastic plate is also divided into general plastic and engineering plastics, mainly to define the broad range of uses, such as PE board, PP board is cheap, can be used in a variety of different types of machine production (such as extruder, laminator) . Engineering plastics are more expensive, but the stability of raw materials and physical properties are much better, in general, its both rigid and toughness characteristics. Has good corrosion resistance, high strength, hardness, easy processing and welding, and other characteristics, are widely used in acid pond, extraction containers, such as chemical industry, water treatment, environmental protection equipment.
Plastic plate has excellent chemical stability, strong corrosion resistance, high hardness, high strength, anti-ultraviolet (anti-aging), fire retardant (with self-extinguishing), reliable insulation, smooth surface, smooth, non-absorbent Widely used in chemical, oil, electroplating, water purification equipment, environmental protection equipment, mining, extraction engineering, electronic circuits (electronic engineering), and so on. Board, fire board template, Mian Shaozhuan pallets, building templates and advertising decoration and other industries.
PVC board performance
General properties PVC resin is a white or light yellow powder, the relative density of 1.35-1.45. Soft and hard products can be added by the number of copies of plasticizers to adjust. Pure PVC water absorption and permeability are very small.
Mechanical properties Mechanical properties PVC has a higher hardness and mechanical properties. And the molecular weight increased with increasing molecular weight, but decreased with increasing temperature. Rigid PVC mechanical properties, and its elastic modulus up to 1500-3000MPa. While the flexibility of soft PVC 1.5-15MPa. But the elongation at break is as high as 200 to 450%. PVC friction in general, the static friction factor of 0.4-0.5, dynamic friction coefficient of dynamic friction factor of 0.23.
Thermal properties of PVC heat stability is very poor, 140 ℃ began to decompose, melting temperature of 160 ℃. PVC line of small expansion coefficient, with flame resistance, oxidation index of up to 45 or more.
Electrical properties Electrical properties of PVC is a better electrical properties of polymers, but because of its polarity, electrical insulation than PP and PE. Dielectric constant, dielectric loss tangent and volume resistivity, corona resistance is not good, generally suitable for low voltage and low frequency insulation materials.
Environmental performance: PVC can be resistant to most inorganic acid, salt, most organic solvents. Suitable for medicine, chemical anti-corrosion materials.