Research progress on the application of surface modified brucite powder in flame retardant polypropylene
As a highly efficient halogen-free flame retardant, brucite powder is increasingly valued in polypropylene (PP) materials. However, the compatibility and dispersibility of brucite powder with the polypropylene matrix limit the full play of its flame retardant properties. The application of surface modification technology provides an effective way to solve this problem.
Characteristics of brucite powder
Flame retardant properties: brucite powder releases moisture when heated, absorbs heat and cools down, forming a high-temperature resistant magnesium oxide layer, which is effectively flame retardant.
Environmentally friendly: As a halogen-free, non-toxic, and smokeless flame retardant filler, brucite powder meets the requirements of green chemistry.
Importance of surface modification
Improve dispersibility: Solve the agglomeration problem of brucite powder in polypropylene and improve the flame retardant effect.
Improve compatibility: Enhance the interfacial compatibility between brucite powder and polypropylene matrix and improve the overall performance of the material.
Surface modification method
Chemical modification: Apply coupling agent to improve the compatibility of brucite powder with polypropylene.
Physical modification: Use mechanical force to change the surface properties of brucite powder and enhance its dispersibility.
Composite modification: Use brucite powder in combination with other flame retardants to achieve synergistic flame retardant effect.
Research progress
Surfactant treatment: Use fatty acids, silane coupling agents, etc. to improve the compatibility of brucite powder and polypropylene.
Composite modification: Use brucite powder in combination with other flame retardants such as magnesium hydroxide to significantly improve the flame retardant properties of polypropylene.
Modification mechanism: In-depth study of how surface modification affects the flame retardant properties of brucite powder by improving dispersibility, improving compatibility and enhancing interfacial bonding strength.
Application examples
Flame-retardant polypropylene: Flame-retardant polypropylene prepared by surface-modified brucite powder has excellent flame retardant and mechanical properties and is suitable for home appliances, automobiles and other industries.
Future development
Multifunctionality: Develop modified brucite powder with multiple functions such as flame retardant, antibacterial, and antistatic.
Nano-scale modification: Study the surface modification of nano-scale brucite powder to further improve flame retardant and mechanical properties.
Environmentally friendly modifiers: Look for environmentally friendly and biodegradable modifiers to reduce environmental impact.
Conclusion
The research on surface-modified brucite powder in the field of flame-retardant polypropylene continues to progress. By continuously improving modification technology and optimizing formulas, the material performance can be significantly improved and the scope of application can be expanded. With the continuous advancement of environmental awareness and technology, research in this field is expected to achieve more innovative breakthroughs.