What are the shortcomings of PVC products? The more detailed the better.
Our company is producing pvc glue, I can only provide me to understand. Pvc is a very stable material, mainly used in our sewers and flooring, acid and alkali, wear insulation, durable than iron, is not easy to be corroded, but there are professional solvent dissolved, so link stitching more convenient, these are advantage. Pvc according to different uses to join different additives, showing different physical properties and chemical properties. Because pvc is a general plastic material that is afraid of high temperature, the number of additives added to the pvc material determines the hardness and softness, determines the degree of oxidation. So pvc generally afraid of high temperature, afraid of a specific solvent, afraid of light easily oxidized. These are shortcomings.
Disadvantages:
1, the higher the cost
2, the thermal stability is not good, low temperature hardening and brittle, easy to soften the relaxation at high temperatures
3, high temperature will release dioxin acid gas
4, processing performance is not good
5, impact resistance is not good
6, poor resistance to aging
7, the additive in the course of the gradual evaporation, pollution of food or air
8, difficult to degrade, waste is difficult to deal with
9, the release of harmful substances in its production, resulting in harmful waste.
