White wax like injectable PP

PP (Polypropylene) resin molecules exhibit a non-polar crystalline linear structure, with low surface activity and no polarity. There is poor surface printability; Poor coating adhesion; Difficult to blend with polar polymers; The disadvantage of being incompatible with polar reinforcing fibers and fillers. Grafting modification is the process of introducing polar groups into the polymer chains to improve the blending, compatibility, and bonding properties of PP, overcoming the drawbacks of difficult blending, compatibility, and bonding. Under the action of an initiator, the grafting monomer undergoes grafting reaction during melt mixing. The initiator decomposes to produce active free radicals when heated and melted. When the active free radicals encounter unsaturated carboxylic acid monomers, they promote the opening of unstable bonds in the unsaturated carboxylic acid monomers and react with PP active free radicals to form grafting free radicals, which then terminate through molecular chain transfer reaction. The common grafting  Polypropylene modification methods for PP include melting method, solution method, solid-phase method, suspension method, etc. After grafting modification, the hydrogen atoms in the PP molecular chain are replaced and exhibit strong polarity. These polar groups enhance the compatibility of PP, greatly improve its heat resistance and mechanical properties. In the future development of PP materials, more attention will be paid to the concept of environmental protection and sustainable development, committed to reducing carbon emissions and resource consumption in the production process, and improving the recyclability and degradability of materials. At the same time, the application fields of PP materials will become more extensive, especially in the development of electric vehicles, new energy and other fields, where PP materials will have more application opportunities.   AS Resin

 

In summary, PP material is a common plastic material with excellent chemical stability, thermal stability, wear resistance, and processability. It is widely used in fields such as packaging, automotive, home, medical equipment, and electronic appliances. In the future, PP materials will pay more attention to environmental protection and sustainable development, achieve material recyclability and degradability, and expand a wider range of application fields.   Polyamide