Talking about the construction and identification of PVC pipes.

Jan. 21, 2021
PVC is polyvinyl chloride, and other components are added to the PVC pipe to enhance its heat resistance, toughness, ductility, etc. The top layer of this surface film is lacquer, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive. It is currently the most popular, popular and widely used synthetic material. Its global usage ranks second among various synthetic materials.

PVC pipe is made of polyvinyl chloride resin, stabilizer, lubricant, etc., and then extruded by hot pressing. It is the first plastic pipe to be developed and applied. PVC-U pipe has strong corrosion resistance, easy bonding, low price, and hard texture. However, due to the exudation of PVC-U monomer and additives, it is only suitable for water supply systems whose output temperature does not exceed 45°. Plastic pipes are used to output drinking water, waste water, chemicals, heating fluid and cooling fluid, food, ultra-pure liquid, mud, gas, compressed air and vacuum system applications.

pvc pipe

Identification method of PVC pipe:

First of all, the surface finish and whiteness of the PVC pipe; then take the sample to test, the ones that are easy to break are usually high-calcium products, of course, they must meet the requirements, and the price is right; then take the sample to step on the edge of the pipe, See if it can be cracked, or the elongation at break after cracking; whether it is good in weather resistance. The most direct way is to store the PVC pipe in a high-temperature and high-gloss place for a few days, and then look at its surface change rate, but this is a waste of time.

Application of PVC pipes:

The essence of PVC pipe is a kind of vacuum blister film, which is used for the surface packaging of various panels, so it is also called decorative film and adhesive film, which is widely used in building materials, packaging, medicine and many other industries.