Hydrophobic slurry, and preparation method and application thereof

Abstract

The invention relates to the technical field of high polymer materials, and particularly discloses hydrophobic slurry, and a preparation method and an application thereof. The hydrophobic slurry comprises hydrophobic cellulose and a hydrophobic polymer used as a film-forming agent; the hydrophobic cellulose is cellulose with the surface coated with a fluorine-containing polymer; the fluorine-containing polymer is one or more of polytetrafluoroethylene, polyvinylidene fluoride, a fluorinated ethylene propylene copolymer and an ethylene-chlorotrifluoroethylene copolymer; and the hydrophobic polymer is one or more of polyvinyl butyral, ethyl cellulose, polycaprolactone and polylactic acid. The hydrophobic slurry has the advantages of simple components, simplicity in preparation, no chemical modification, and realization of excellent hydrophobic property of a hydrophilic material. The invention also provides a preparation method of the hydrophobic slurry. The method is simple, and is beneficial to industrial production. The invention also provides a hydrophobic paper. The hydrophobic paper comprises the hydrophobic slurry, is simple to prepare, and has good hydrophobic and mechanical properties.

Description

technical field [0001] The invention relates to the field of polymer materials. Specifically, it relates to a hydrophobic slurry and its preparation method and application. Background technique [0002] Hydrophobicity is an important surface property of materials. Providing hydrophobic properties to solid materials in different ways can enable them to have new additional functions, obtain wider applications, and replace products with obvious defects in the prior art. [0003] For example, plastic products have good hydrophobic and water-repelling properties, and are widely used in various fields of production and life, but they are difficult to degrade, which brings increasingly serious white pollution, and it is imperative to limit their use. The preparation process of paper products is mature and degradable, and has been widely used in daily life to replace plastic products. However, paper-based materials (cartons, shopping bags, gift packaging boxes, etc.) It is very li...

AI Technical Summary

Problems solved by technology

However, most of the preparation of hydrophobic paper in the prior art uses chemical methods, such as organosilicon, organic fluorine and other reagents to modify the paper surface, or to graft hydrophobic polymers on the surface of the paper to modify the paper hydrophobically. The steps of the above methods are cumbersome. There are many chemicals required, the conditions are harsh, and industrialization is extremely difficult

In addition, it is conventional to impart hydrophobicity to paper products by coating / coating fluorine-containing silicon-containing hydrophobic coatings, but the above coating preparation process mainly uses fluorine-containing silicon-containing reagents to modify resins such as epoxy resin and acrylic resin, and then Adding various additives and fillers, the process is complicated, and most of the additives used are harmful to the environment, and the resin used is not biodegradable, which will aggravate environmental pollution

Images