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Miscellaneous talk about PVC sheet product information

2019-07-10 11:40:47
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The production and consumption of PVC board is an average of 1.4 million tons, and it is being produced and applied worldwide at a growth rate of 4%. In recent years, the growth of PVC plastics in Southeast Asia has been particularly remarkable, thanks to the urgent need for infrastructure construction in Southeast Asian countries. Among the materials that can produce three-dimensional surface film, PVC plastic board is the most suitable material. Specific gravity: 1.38 g/cm3, molding shrinkage rate: 0.6-1.5%, molding temperature: 160-190℃.  

Features: mechanical properties, excellent electrical properties, strong acid and alkali resistance, good chemical stability, but low softening point. Suitable for making thin plates, wire and cable insulation, seals, etc.  

  The plastic board molding characteristics:   

1. Amorphous material, low moisture absorption, poor fluidity. In order to improve fluidity and prevent bubbles, the plastic can be dried in advance. The mold casting system should be short and thick, and the gate section should be large, and there should be no dead corners.

The mold must be cooled and the surface is chrome plated.   

2. Due to its corrosive and fluid characteristics, it is recommended to use special equipment and molds. All products must be added with different types and quantities of additives according to needs.  

3. It is very easy to decompose, and it is easier to decompose in contact with steel and copper at a temperature of 200 degrees. Corrosion and irritating gases will escape during decomposition. The molding temperature range is small.   

4. When using the screw injection machine nozzle, the aperture should be large to prevent dead ends from stagnating. It is better to have no inserts, and if there are inserts, they should be preheated.  

  PVC board can be seen everywhere in people's daily life. PVC can not only express the colors of nature, but also the colors that people imagine. In Germany, 40% of furniture is made of PVC as surface material, such as desks, bookshelves, sofas, kitchen cabinets, etc. It is a kind of synthetic material that is well-loved, popular and widely used in the world today.

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