Characteristics of PVC board PK common plastic board
Compared with other materials, plastic plate has the following characteristics
Plastic plates are also divided into general plastics and engineering plastics, which are mainly defined by the universality of their uses. For example, PE plates and PP plates are cheap and can be produced on a variety of different types of machines (such as extruders and laminations). Engineering plastics are more expensive, but the stability and physical properties of raw materials are much better. Generally speaking, they have both rigidity and toughness. It has good corrosion resistance, high strength, high hardness, easy to process and weld. It is widely used in acid-base pool, extraction container, chemical industry, water treatment, environmental protection equipment, etc.
Plastic plate has the advantages of excellent chemical stability, strong corrosion resistance, high hardness, high strength, UV protection (aging resistance), fire resistance (self extinguishing), reliable insulation, smooth surface, flat surface, no water absorption, no deformation, easy processing and so on. It is an excellent thermoforming material, which can replace part of stainless steel and other corrosion-resistant synthetic materials, and is widely used Chemical, petroleum, electroplating, water purification and treatment equipment, environmental protection equipment, mining, extraction engineering, electronic circuit board, fireproof board template, unburned brick pallet, building template and advertising decoration industries.
Properties of PVC board
general performance PVC resin is a white or light yellow powder with a relative density of 1.35-1.45. The hardness and softness of the product can be adjusted by adding the number of plasticizers. The water absorption and air permeability of pure PVC are very low.
Mechanical properties mechanical properties PVC has high hardness and mechanical properties. It increases with the increase of molecular weight and molecular weight, but decreases with the increase of temperature. The mechanical properties of rigid PVC are good, and its elastic modulus can reach 1500-3000mpa. The elasticity of soft PVC is 1.5-15 MPa. But the elongation at break is as high as 200% - 450%. The friction coefficient of PVC is 0.4-0.5 in static and 0.23 in dynamic.
The thermal stability of PVC is very poor, it begins to decompose at 140 ℃, and the melting temperature is 160 ℃. The linear expansion coefficient of PVC is small, it is flame retardant, and its oxidation index is over 45.
Electrical properties PVC is a kind of polymer with good electrical properties, but its electrical insulation is not as good as PP and PE due to its large polarity. Dielectric constant, tangent value of dielectric loss angle and volume resistivity are large, and the corona resistance is not good, which is generally suitable for medium and low voltage and low frequency insulation materials.
environmental performance: PVC can withstand most inorganic acid, alkali, salt and most organic solvents. It is suitable for medicine and chemical anticorrosive materials. PVC edge veneer