1.PVC Resin: It adopts Vinyl resin type 5, which has good strength and toughness and is environmentally friendly.

2. Fineness of calcium powder: Because the addition ratio is large, it directly affects the formula cost, processing performance, abrasion of the screw barrel and product performance, so you cannot choose too thick calcium powder. The fineness of calcium powder is 400-800 mesh.

3. Lubrication inside and outside: Considering the long residence time of the material in the extruder at high temperature, as well as the performance of the material and the peeling force, it is recommended to use a high-performance wax to control a small amount of use, and use different waxes to meet the initial and medium-to-long term Lubrication requirements.

4. ACR: Due to the high calcium powder content of spc plank flooring China manufacturer and high plasticization requirements, in addition to the control of screw type and processing technology, it is necessary to add plasticizers to help plasticize, and ensure that the melt has a certain strength, and during the rolling It has some ductility.

5.Toughening agent: The spc waterproof flooring China manufacturer requires not only low shrinkage and good rigidity, but also a certain degree of toughness. The balance between rigidity and toughness is required to ensure the firmness of the lock, not soften at high temperatures, and maintained at low temperatures. Certain toughness. CPE has good toughness, but when the amount of added is large, the rigidity of PVC is reduced, the Vicat softening temperature, and the shrinkage rate is increased.

6.Anti-shrinking agent: compresses the particle gap between PVC materials to reduce excessive shrinkage due to temperature.

7. PE wax is not only a lubricant, but also has a dispersing effect. However, the amount of addition will affect the balance of internal and external lubrication and the deterioration of melt strength, increase the shrinkage of the product and reduce the peeling force, and the spc flooring tiles China manufacturer  becomes brittle.