Methods to improve the surface ability of polypropylene

With the increasing application of polypropylene materials in various fields, the requirements for their surface ability are also becoming higher and higher. However, the low surface ability of polypropylene itself imposes certain limitations on its application. Therefore, how to improve the surface ability of polypropylene has become a research hotspot.

Several methods to improve the surface ability of polypropylene

Increase surface roughness

By increasing the roughness of the polypropylene surface, its surface ability can be improved. For example, sandblasting or drawing treatment can be applied to the surface of polypropylene to increase its geometric structure and thus enhance its surface capability. Meanwhile, surface roughness can also be increased through methods such as electron beam processing and ion implantation.

Surface modification

Surface modification is a common method to improve the surface ability of polypropylene. For example, by coating a layer of modifier on the surface of polypropylene, its surface ability can be increased. Common modifiers include siloxanes, polyamides, etc. These modifiers can form a relatively strong chemical bond on the surface of polypropylene, thereby improving its surface ability.

Chemical modification

Chemical modification is a relatively thorough method to improve the surface ability of polypropylene. Polypropylene can be copolymerized or grafted with other substances to alter its surface properties. For example, polypropylene can be copolymerized or grafted with acrylic acid, co methylacrylic acid, etc. to obtain polymers with good surface properties.

What modification directions can be used to increase performance?

Polypropylene, abbreviated as PP, is one of the five universal plastics widely used in both daily and industrial products. PP modification is a broad field that involves many different directions and methods. The purpose, in large part, is to compensate for the shortcomings of PP itself and expand its application fields. The following are common directions for polypropylene modification:

1. Enhanced modification: PP material is relatively soft and lacks sufficient support. The mechanical properties of polypropylene, such as strength, stiffness, and wear resistance, can be enhanced by adding glass fiber, carbon fiber, nanomaterials, etc.

2. Filling modification: PP has a high shrinkage rate and is prone to deformation after injection molding. By adding fillers such as inorganic powders and micro glass beads, the characteristics of polypropylene can be improved, such as increasing thermal conductivity, reducing costs, and improving dimensional stability.

3. Blending modification: Mixing polypropylene with other polymers or additives to improve its properties, such as increasing toughness, chemical resistance, temperature resistance, etc.

4. Functional additives: PP does not have flame retardancy and has poor weather resistance. Adding additives with specific functions, such as antioxidants, UV absorbers, flame retardants, etc., can improve the weather resistance and fire resistance of polypropylene.

Conclusion

Overall, there are various methods to improve the surface ability of polypropylene. Suitable methods need to be selected according to different application scenarios. These methods can effectively improve the surface ability of polypropylene materials, thereby enhancing their performance in various applications.

Dongguan Liansheng Non woven Technology Co., Ltd. was established in May 2020. It is a large-scale non-woven fabric production enterprise integrating research and development, production, and sales. It can produce various colors of PP spunbond non-woven fabrics with a width of less than 3.2 meters from 9 grams to 300 grams.