PVC (Polyvinyl Chloride) is a commonly used synthetic material obtained by reacting ethylene and chlorine at high temperatures and has excellent weather resistance, mechanical properties, and chemical stability.PVC material mainly comprises polyvinyl chloride resin, plasticizer, stabilizer, filler, and so on.
The application range of PVC material
PVC material has excellent physical and mechanical properties and chemical stability, is the world’s largest production of general-purpose plastics, and is very widely used:
Construction industry: PVC pipes, PVC flooring, PVC wallpaper, PVC partitions, etc.;
Home furnishing industry: PVC curtains, PVC floor mats, PVC shower curtains, PVC sofas, etc;
Packaging industry: PVC boxes, PVC bags, PVC cling film, etc;
Medical and health industry: PVC infusion tube, PVC surgical gown, PVC shoe cover, etc;
Electronic industry: PVC wires, PVC cables, PVC insulating boards, etc.
There are several difficulties in the processing of PVC materials:
Thermal stability problem: PVC materials need to be processed at high temperatures, but PVC is prone to decompose and release HCl (hydrogen chloride) gas, which reduces the performance and service life of the material.
Liquid mixing problem: PVC material is a solid and needs to be mixed with plasticizers and other liquid additives, but the solubility of different substances is different, easily leading to mutual separation and precipitation.
Processing Viscosity Problem: PVC material has a high viscosity, which requires the application of high pressure and temperature during processing, thus increasing production costs.
Generation of Hydrogen Chloride Gas: PVC materials emit hydrogen chloride gas during processing, which is hazardous to the environment and health and requires measures to deal with.
To solve these difficulties, measures such as the application of additives such as stabilizers and lubricants, the control of processing temperature and time, and the optimization of the production process are usually applied in production.
SILIKE Silicone Powder Improves Production Efficiency of PVC Materials >>
SILIKE Silicone powder is a white powder containing ultra-high molecular weight polysiloxanes dispersed in an inorganic carrier, which is widely used in PVC materials, masterbatches, filler masterbatches, etc., to improve their processing properties, surface properties, and dispersion properties of fillers in plastic systems.
Typical properties of SILIKE silicone powder:
Enhance processing performance: A small amount of SILIKE Silicone Powder LYSI-100 can enhance the processing flow performance of PVC material, reduce the accumulation of material in the mouth die, reduce the extrusion torque, and give the product better demoulding performance and mold filling performance.
Improve the surface quality: A small amount of SILIKE Silicone Powder LYSI-100 can give products a smooth surface feel, reduce the coefficient of friction, and improve product wear and scratch resistance.
Saving comprehensive cost: compared with traditional processing aids and lubricants, SILIKE Silicone Powder has better stability, adding a small amount of SILIKE Silicone Powder LYSI-100 can reduce the defective rate of the product, improve the production capacity and save the comprehensive cost.
Typical applications of SILIKE silicone powder:
- For PVC, PA, PC, and PPS high-temperature engineering plastics, can improve the flow of the resin and processing properties, promote the crystallization of PA, and improve the surface smoothness and impact strength.
- PVC pipe: faster extrusion speed, reduced COF, improved surface smoothness, saved cost.
- Low smoke PVC wire&cable compounds: stable extrusion, less die pressure, smooth surface of wire&cable.
- Low friction PVC wire&cable: Low Coefficient of Friction, long-lasting smooth feeling.
- Low friction PVC wire&cable: Low Coefficient of Friction, long-lasting smooth feeling.
- PVC shoe soles: A small dosage can improve abrasion resistance. ( DIN value of abrasion resistance index can be largely decreased).
SILIKE silicone powder can be used in classical melt blending processes like Single /Twin screw extruders, and injection molding. SILIKE Silicone powder has a wide range of applications, in addition to PVC materials, and PVC soles, but it also can be used for engineering plastics, filler masterbatch, masterbatch, wire and cable materials, etc., different ways to add different amounts, if you have a related trouble, we recommend that you contact SILIKE directly, we are happy to help you solve the problem.
Post time: Dec-13-2023
