Polypropylene (PP) is a polymer made from propylene through polymerization. Polypropylene is a thermoplastic synthetic resin with excellent performance, it is a colorless and semi-transparent thermoplastic light-weight general-purpose plastic with chemical resistance, heat resistance, electrical insulation, high strength mechanical properties, and good high abrasion-resistant processing properties, etc. It is widely used in the production of garments, blankets and other fiber products, medical devices, automobiles, bicycles, parts, conveying pipelines, chemical containers, etc., and it can be used in the packaging of food and pharmaceuticals as well.
However, due to its surface being easy to damage and easy to produce defects, affecting its beauty and service life, common PP plastic surface defects are as follows:
Scratches: In the process of use, it is easier to be scratched by sharp objects, which will leave some scratches on the surface.
Bubbles: In the process of injection molding, if the mold structure is unreasonable or the injection process is improper, it may form bubbles in the plastic.
rough edge: In the process of injection molding, due to unreasonable mold design or insufficient injection pressure, it may form a rough edge on the surface of the parts.
Color difference: In the process of injection molding, due to different quality of raw materials, different injection temperatures, and other factors, may lead to the inconsistent color of the plastic parts.
Currently, the common solutions for PP plastics to improve surface abrasion resistance include:
Adoption of suitable toughening resin: PP plastic surface wear resistance is poor, you can add the right amount of toughening resin to improve its wear resistance. Such as mPE, POE, SBS, EPDM, EPR, PA6, and other commonly used toughening resins.
Adoption of suitable filler materials: Adding the right amount of filler materials can improve the mechanical properties and abrasion resistance of plastics and reduce the generation of surface defects. The filler here can be talc, wollastonite, silica, etc.
Selection of suitable plastic additives: Plastic surface abrasion resistance can also be improved by adding suitable processing aids, such as silicone-based additives, PPA processing aids, oleic acid amide, erucic acid amide, and other slippery agents, and the use of silicone masterbatch is recommended here.
SILIKE Silicone Masterbatch ( Siloxane Masterbatch ) LYSI series is a pelletized formulation with 20~65% ultra-high molecular weight siloxane polymer dispersed in various resin carriers. It is widely used as an efficient processing additive in its compatible resin system to improve processing properties and modify surface quality.
SILIKE LYSI-306 is a pelletized formulation with 50% ultra-high molecular weight siloxane polymer dispersed in Polypropylene (PP ). It is widely used as an efficient additive for PP-compatible resin systems to improve the processing properties and surface quality, such as better resin flow ability, mold filling & release, less extruder torque, lower coefficient of friction, and greater mar and abrasion resistance.
A small amount of SILIKE LYSI-306 provides the following benefits:
- Improve processing properties including better flow ability, reduced extrusion die drool, less extruder torque, and better molding filling & release.
- Improve surface quality like surface slip.
- lower Coefficient of friction.
- Greater abrasion & scratch resistance
- Faster throughput, reduce product defect rate.
- Enhance stability compared with traditional processing aids or lubricants.
Compared to conventional lower molecular weight Silicone / Siloxane additives, like Silicone oil, silicone fluids, or other type processing additives, SILIKE Silicone Masterbatch LYSI-306 is expected to give improved benefits. A wide range of applications are available:
- Thermoplastic Elastomers
- Wire&Cable compounds
- BOPP, CPP film
- PP Funiture / Chair
- Engineering plastics
- Other PP-compatible systems
Above are the Solutions for PP plastic, PP plastic surface defects, and how to improve the wear resistance of PP plastic surface. Explore the possibilities of enhancing PP plastic with SILIKE Silicone Masterbatch (Siloxane Masterbatch) LYSI series! For inquiries or further information, don’t hesitate to reach out. Elevate your PP plastic’s performance and durability with SILIKE – your trusted partner in innovation!
Post time: Jan-05-2024
