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Titanate, Zirconate & Aluminate Coupling Agents & Catalysts for Polymer Compatibilzation and Advanced Mechanical Recycling
Kenrich Petrochemicals, Inc’s (“Kenrich”) Ken-React® series of titanate, zirconate and aluminate organometallics provide advancement-in-the-state-of-the-art opportunities for polymer compatibilization and advanced mechanical recycling. The extruder becomes a reactor for coupling and catalysis of all the materials found in the recycle fed into the hopper. Development background: Ziegler, Natta & Kaminisky used titanium and aluminum catalysts to produce Addition Polymers; Titanate catalysts are used to produce Condensation Polymers; Heteroatom Titanate coupling agents compatibilize Fillers with Polymers. Plastic recycling and sustainability goals are often limited by the intrinsic incompatibility of many polymers and the negative effect of fillers and impurities on end-product properties thus requiring a high degree of expensive sorting, separating, and cleaning. Another barrier is the melt processing of polymers causes chain scissoring resulting in recycle and regrind materials having inferior properties compared to virgin. Current compatibilizers offered to recyclers are based on co-polymers or maleic anhydride modified polymers. Kenrich offers Neoalkoxy Titanate in combination with Al2SIO5 mixed metal catalyst in Powder & Pellet forms for In Situ Macromolecular Repolymerization and Copolymerization in the melt – i.e., Polymer Compatibilization… AND … The Neoalkoxy Titanate proton coordinates with inorganic fillers and organic particulates to couple/compatibilize the dissimilar interfaces at the nano-atomic level. Thus, Ken-React® CAPS® KPR® 12/LV pellets dosed at 1.5% by total weight of recycle content and processed at ~10% lower temperature will produce performance recyclate.