Nucleating agent is a new type of functional plastic additive
Nucleating agent is a plastic additive. Nucleating agent is suitable for polyethylene, polypropylene and other incomplete crystallization resin, aiming at changing the crystallization behavior of the resin, speeding up the crystallization speed, increasing the crystallization density and promoting the grain size micro-refinement, to shorten the molding cycle, Improve the product transparency (such nucleating agent is also known as transparent agent), surface luster, tensile strength, rigidity, thermal deformation and other physical and mechanical properties of the new functional plastic additives.
can be divided into &alpha according to the crystal form; - crystal nucleating agent and β - crystalline nucleating agents. At present, the global consumption of nucleating agents is about 5kt/a, 80% of which are diphenylmethylene sorbitol (DBS) type nucleating agents. Because it can improve the mechanical properties and toughness of PP, β - Crystal nucleating agent has become a hot spot in the research and development of nucleating agent.
Transparent agent is a branch of nucleating agent, about 90% of the transparent agent is used in the production of transparent polypropylene (C-PP). Transparent agent to the original opaque PP with good transparency, so that the cost of very low C-PP not only in many aspects can replace the more expensive polyethylene terephthalate (PET), polystyrene (PS) and polycarbonate (PC) and other transparent plastics, and can improve the rigidity, impact strength, thermal deformation temperature and other mechanical properties of PP.