Water-based hydrophobic slurry as well as preparation method and application thereof

Abstract

The invention discloses water-based hydrophobic slurry as well as a preparation method and an application thereof. The water-based hydrophobic slurry is prepared from silane modified nano cellulose, hydrophobic nano silicon dioxide, stearic acid substances and water. The preparation method comprises the following steps: mixing nano cellulose, hydrophobic nano silicon dioxide and stearic acid substances to obtain a silicon dioxide premix; and mixing the silicon dioxide premix, the nanocellulose dispersion liquid and a silane substance to obtain the water-based hydrophobic slurry. According to the method, the water-based hydrophobic slurry which is uniform in property, efficient, environment-friendly and good in stability can be provided, the method is simple and convenient, the cost is low, and high hydrophobicity and water-oil separation performance can be provided for a base material.

Description

technical field

[0001] The invention relates to the field of polymer materials, in particular to a water-based hydrophobic slurry and its preparation method and application. Background technique

[0002] Today's plastic products are widely used, non-degradable, non-recyclable, and serious environmental pollution. However, paper-based materials have the disadvantage of poor hydrophobicity during use, and cannot completely replace plastic products. Therefore, hydrophobic modification of paper-based materials has become an urgent problem to be solved.

[0003] In industrial papermaking, the method of adding AKD (alkyl ketene dimer) to the pulp is often used to obtain water resistance, but it cannot achieve super-hydrophobic properties. In the industry, the preparation of super-hydrophobic paper mostly uses styrene-acrylic emulsion compound. Although its degree of hydrophobicity is high, there are problems such as non-degradable main components and environmental pollution, whi...

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