Under which conditions will environmental plasticizer and resin cooperate to achieve the best effect?

Here are a few points to give you some hope to help.

(1) good compatibility is a basic requirement for environmental plasticizers. A good solubility is that a polymer can hold as much plasticizer as possible. And form a uniform, stable system. Without phase separation, no seepage occurs.

(2) durability is a measure of comprehensive performance of plasticizer, including low

Volatility, resistance to migration, low extraction, heat resistance, light and heat stability.

1. Volatility refers to the ability of environmental plasticizers to evaporate from the polymer. This ability can be thought of as moving from the inside of the compound to the surface, and then from the surface to the surrounding medium. Therefore, the plasticizer with low diffusion speed and high boiling point should be selected.

2. Migration refers to the movement of plasticizer molecules to the surface or plastics containing plasticizers in contact with other substances, and plasticizers move to the surface in plastic. For example, plastic used in the electrical equipment section, in order to ensure the electrical insulation, must have non-migration.

3. Chemical extractive plasticizer is chemically extracted by other substances. This phenomenon is manifested when plastic products are drawn out with plasticizers as they are eroded by organic solvents or mineral oil, and the solvent is absorbed. The rule is that the higher the molecular weight, the less the extraction.

Use of volatile low, resistant to move good, the plastic products that do not draw the plasticizer to process the life long.

(3) the thermal stability and low temperature cold tolerance model shaking products in the process of processing and use requirements keep it soft performance, which requires the plasticizer has heat resistance, resistance to light and low temperature performance, all the heat consumption of plasticizer its thermal performance is poor.

(4) PVC hard products with no plasticizer of electric insulation, its electrical insulation is the ohm/cm (volume resistivity factor), and when added plasticizer, the electrical insulation performance decreases. Therefore, the electrical insulation of polyvinyl chloride plastics depends largely on the variety, dosage and nature of plasticizer. Phosphate and chlorinated paraffin, etc. Due to high toughness,

It enables the polymerization ownership chain to be fixed in the polarization position, and the electrical insulation performance is better.

(5) flame-retardant general ester has the effect of flame retardant. Phosphate and chlorinated paraffin (except for individual) have flame retardant properties. Therefore, it is necessary to choose the plasticizer with flame retardant or non-combustible capacity when considering the use of plastic products such as construction and furniture.

(6) anti-mold (bacterial) sex some plastic products such as polyvinyl chloride artificial leather are in the process of storage and use of mold, which is caused by the mould of diyurethane plasticizer. If you choose phosphate and chlorinated paraffin plasticizer, this phenomenon will not occur.

(7) non-toxicity should be considered when choosing plasticizers for food packaging materials. Epoxy plasticizers such as epoxy-soybean oil are widely used.