The brightening agent can absorb the moisture of the rubber material itself, increase the fluidity of the rubber material in the mold, and improve the brightness of plastic products. It can also increase fluidity, defoaming, and promote lubrication. It can not only absorb 32% of the weight of the plastic product itself. The above moisture can increase the yield by more than 30%. Suitable for use in plastic products such as extruded plastic products that have no bright or glossy appearance.

Flame retardant masterbatch is divided into inorganic flame retardant masterbatch and halogen-free flame retardant masterbatch, phosphorus bromine composite flame retardant masterbatch, heat-resistant flame retardant masterbatch, low temperature resistant flame retardant masterbatch, fully transparent flame retardant masterbatch, reinforced type flame retardant masterbatch and many other types. Flame retardant masterbatch must be said to be an outstanding product in the world, its addition amount is less than 3; after adding the product, the colloid will precipitate, produce dust pollution, have less material damage, good heat resistance, and good dispersion.

There is a possibility of interaction between light stabilizers and heat stabilizers. Therefore, when selecting light stabilizers for PVC, the interaction between them and heat stabilizers should be considered. The application of light stabilizers must not affect the effect of heat stabilizers.

Organotin heat stabilizers have good thermal stability and transparency, but the transmittance of organotin is close to that of PVC and cannot effectively protect the damaging effects of ultraviolet rays on PVC molecules. Therefore, the weather resistance is better than lead salts and various environmentally friendly (calcium zinc ) The heat stabilizer is poor, and only by adding an amount of titanium for shielding can the weather resistance requirements be met. When the calcium zinc stabilizer is compounded, the zinc soap replaces the alkenyl chloride and is accompanied by a double bond transfer. The polyene structure is destroyed and discoloration occurs. However, zinc chloride will precipitate in PVC and have a catalytic effect on HCL removal, making PVC unstable and even causing blackening and bridging. The calcium soap then reacts with the stable chlorine atoms in PVC through a metathesis reaction to regenerate the zinc chloride produced into zinc soap, thus activating the zinc soap on the one hand.

Calcium zinc stabilizers are usually divided into: solid calcium zinc stabilizers and liquid calcium zinc stabilizers.

Plasticizers affect the basic properties of coatings, such as flexibility and weather resistance, and are also closely related to the construction performance and film quality of coatings.