Advantages and disadvantages of PVC plastic

Now we will often use PVC plastic in our lives, based on the characteristics and advantages of PVC plastic, now many places are in a large number of PVC plastic, and can meet our basic needs. The following details the advantages and disadvantages of PVC plastic, as well as its characteristics.

1, PVC plastic advantages and disadvantages
Advantages: Rigid PVC is one of the most widely used plastic materials. PVC material is an amorphous material.
PVC materials are often added to the actual use of stabilizers, lubricants, auxiliary processing agents, colors, impact agents and other additives.
PVC material has non-flammability, high strength, climate resistance and excellent geometric stability.
PVC has a strong resistance to oxidants, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid, concentrated nitric acid and is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons.

Disadvantages: The flow characteristics of PVC are quite poor, and its process range is very narrow. In particular, large molecular weight PVC materials are more difficult to process (this material is usually added to improve the flow characteristics of lubricants), so small molecular weight PVC materials are usually used.
The shrinkage rate of PVC is quite low, generally 0.2-0.6%.
PVC is easy to release toxic gases during the molding process.

2, the characteristics of PVC plastic
1), light weight, easy handling and loading:
PVC pipe material is very light, handling, loading and unloading, construction is convenient, saving labor.
2), excellent chemical resistance:
PVC pipe has excellent acid, alkali and corrosion resistance, which is suitable for the chemical industry.
3), small flow resistance:
The wall of PVC pipe is smooth, the fluid resistance is small, and the roughness coefficient is only 0, 009, which is lower than other pipes, and the pipe diameter can be reduced under the same flow rate.
4), high mechanical strength:
The water pressure strength, external pressure strength and impact strength of PVC pipe are very high, which is suitable for pipe distribution projects under various conditions.
5), good electrical insulation:
PVC pipe has excellent electrical insulation properties, suitable for wire, cable protection sleeve.
6), does not affect the water quality:
PVC pipe and fittings have been proved by dissolution experiment to be the best pipe for tap water distribution.
PVC Rongsheng refrigerator pipe