Quaternary ammonium cation and quaternary phosphonium cation-containing modified clay, its preparation and application

Abstract

Belonging to the field of organic-inorganic hybrid materials, the invention provides a quaternary ammonium cation and quaternary phosphonium cation-containing organic cation modified clay, its preparation method and application. The preparation method comprises: reacting a suspending solution of a sodium base treated clay mineral with quaternary ammonium cations and quaternary phosphonium cations, conducting filtering, washing, drying and crushing, thus obtaining the quaternary ammonium cation and quaternary phosphonium cation-containing organic cation modified clay with a synergistic effect. The organic cation modified clay provided in the invention has good stability, excellent weather resistance, and no toxicity. The organic cation modified clay contains quaternary ammonium cation modified clay and quaternary phosphonium cation modified clay simultaneously, and shows a synergistic antibacterial activity, so that it can be applied to plastics, rubber, fibers, coatings, adhesives, paper, wood-plastic composite materials and a variety of polymer materials to improve the antibacterial property, the flame retardance and the barrier property of polymers, and has no influence on the mechanical properties of the polymers.

Description

technical field

[0001] The invention relates to the field of organic-inorganic hybrid materials, in particular to a modified clay containing quaternary ammonium cations and quaternary phosphonium cations, a preparation method and application thereof. Background technique

[0002] Organic cations refer to the ionic forms in which the hydrophobic groups in organic molecules are connected to positively charged hydrophilic groups through covalent bonds to achieve a relatively stable structure. Due to its special structure, organic cations exhibit unique properties such as antistatic, bactericidal, and softness, and are widely used in papermaking, oil fields, water treatment, washing, etc., and have good social and economic benefits. Common organic cations include quaternary ammonium salt ions, quaternary phosphonium salt ions, imidazolium salt ions and pyrrole salt ions, among which quaternary ammonium salt ions and quaternary phosphonium salt ions are the most commonly used, wi...

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