Concepts of Plasticizers

Plasticizers are a large variety of additives in the modern plastic industry, which play a decisive role in promoting the development of the plastic industry, especially the PVC industry.
"Any liquid organic compound or low melting point solid that can be uniformly mixed with resin without chemical change, but can reduce the glass transition temperature of the material and the melt viscosity during plastic molding and processing, and remains unchanged, or can remain in plastic products for a long time despite chemical changes, and can change some physical properties of the resin, and has these properties, is called a plasticizer.".
In fact, plasticizer technology has been used as early as in primitive society, and plasticizers also began with the invention of primitive humans. For example:
Pottery - Clay mixed with water. In ancient times, "oil" was used to dissolve in asphalt to make waterproof materials for waterproofing, filling ship seams, etc. Here, "oil" acts as a plasticizer.
There is also the use of whale oil in leather to soften it, which is a more durable plasticizer. Soft candy or sweet Dim sum -- gelatin with water.
Plasticizers generally have the following properties:
Reduce the elastic modulus and tensile strength at break.
2. Improve elongation and elongation at break
3. Improve softness.
4. Improve reversible bending strength.
5. Improve toughness and impact strength.
6. Reduce the glass transition temperature.
7. The applicable type of expanded polymer at lower temperatures.
8. Improve the adhesion of various substrates.
9. Improve or reduce the sealing performance of the film.
Improve lubrication performance and reduce friction.
11. Reduce electrostatic charging capacity.
12. Improve surface gloss and appearance.