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Stable Zeolite/Cellulose Composite Materials And Method Of Preparation, Gustavo F. Larsen
Stable Zeolite/Cellulose Composite Materials And Method Of Preparation, Gustavo F. Larsen
Department of Chemical and Biomolecular Engineering: Patents
Stable cellulosic fiber material for use in forming zeolite/cellulose composites is prepared by suspending loose cellulose fibers in an aqueous solution of sodium hydroxide, potassium hydroxide or sodium silicate, stirring the resulting suspension until it reaches a macroscopically homogenous appearance, heating the resulting mixture at a temperature of 323-423 K until only dry solids remain, contacting the resulting mixture with excess distilled water to remove physically adsorbed or trapped sodium hydroxide, potassium hydroxide or sodium silicate from the fibers, and heating the resulting fiber material at 323-423 K to dry the fiber material. Stable zeolite/cellulose composite material characterized in that …
Morphological Composite Materials Formed From Different Precursors, Ravi F. Saraf
Morphological Composite Materials Formed From Different Precursors, Ravi F. Saraf
Department of Chemical and Biomolecular Engineering: Patents
A method of producing a multiphase polymer is disclosed whereby the phases have the same chemical structure but have different morphological states and thus different properties. This is achieved by forming a mixture of precursors of the polymer, at least one of the precursors having a reaction rate higher than the other precursor or precursors in the mixture. The precursor having the highest reaction rate is then converted to obtain a composite of a polymer and the precursors that are not polymerized. This mixture might also be formed by mixing a soluble polymer with its precursor. The polymer/precursor composite is …