What are the advantages of PVC products compared with other materials?

What are the advantages of PVC plastic products in comparison with other materials?

1. Lighter weight

Plastic products are relatively light materials, the relative density distribution range between 0.90-2.2. Obviously, plastic products it is very possible to float on the surface of the water at will. Especially foamed polystyrene, because there are fine pores inside, the texture is lighter, the relative density is only 0.01. These characteristics make plastic products can be used in the production of goods requiring weight reduction.

 

2. Better chemical reliability

Most of the plastic products have good corrosion resistance to acids, alkalis and other chemicals. In particular, the polytetrafluoroethylene (F4), commonly known as the king of plastics, is more chemically reliable than even gold and silver, and will not deteriorate when boiled in hot water for more than ten hours.

 

3. Excellent anti-static properties

General plastic products are basically bad conductors of electricity, its surface resistivity, volume resistance is large, expressed in figures can reach 109 a 1018 ohms. Breakdown voltage is large, dielectric loss angle tangent value is small. Therefore, plastic products in the electronics industry and machinery industry has a wide range of applications. Such as plastic products insulated control cable.

 

4. Bad conductor of heat, with muffled sound, shock absorption

Generally speaking, the thermal conductivity of plastic products is relatively low, equivalent to 1/75-1/225 of steel, the fine pores of foam. With gas, its temperature insulation, sound insulation and noise reduction, better shock resistance. The thermal conductivity of polyvinyl chloride (PVC) is only 1/357 of steel and 1/1250 of aluminum. in the function of temperature insulation, single-glazed plastic windows are 40% higher than single-glazed aluminum windows and 50% higher than double-glazed. After the integration of plastic products and tempered glass, it can be used in housing, office buildings, hospital wards and hotels to save heating in winter and central air conditioning in summer, which is a very significant benefit.

 

5. Wide range of mechanical strength distribution and high specific strength

Some plastic products are as strong as stone, steel, some are as soft as printing paper, leather products; from the hardness, tensile strength, elongation and impact strength of plastic products and other physical properties, a wide range of distribution, there is a large application of the selected space. Because the specific gravity of plastic products is small, high strength, and therefore has a high specific strength. Compared with other materials, plastic products also have significant disadvantages, such as easy to burn, rigidity is not as high as metal, poor aging resistance, not heat-resistant.