Preparation of water-soluble flame-retardant protective film

Abstract

The invention discloses a water-soluble flame-retardant protective film, and belongs to the technical field of protective films. The protective film comprises the following components in parts by mass: 15-30 parts of polyvinyl alcohol, 0.5-3 part of methyl silicone oil, 0.1-2 part of a plasticizer, 0.1-2 part of an antioxidant, 2-8 parts of an emulsifier, 0.2-3 part of a thickening agent, 0.1-3 part of a water-based quick-drying agent, 1-5 parts of a water-based flame retardant, 0.3-3 part of span 60, and 40-80 parts of water. According to the invention, aiming at the problems of low protection efficiency, high cost, difficulty in stripping, generation of solid wastes, inflammability and the like of the traditional protection film, water is selected as a solvent, polyvinyl alcohol is selected as a protection film base material, additives such as an antioxidant, a plasticizer, an emulsifier, a thickener, a water-based quick-drying agent, a water-based flame retardant, span-60 and the like are used as auxiliary materials, mixing is performed in a mechanical stirring manner, the flame-retardant protective film is applied to the surfaces of protected materials such as workshop walls, equipment, pipelines, kitchens, instruments and the like in a brush coating or spray coating mode, can be peeled off from the surfaces after protection is completed and can also be quickly cleaned with cold water, no residue exists on the surfaces after cleaning, and particularly, and the protective film can achieve an effective flame-retardant effect due to addition of a water-based flame retardant.

Description

technical field [0001] The invention belongs to the technical field of protective films, and in particular relates to a water-soluble flame-retardant protective film. Background technique [0002] Various materials exposed to the atmosphere are easily corroded by high temperature, moisture and acid rain during transportation, storage and processing, and are easily scratched, worn and worn out. In order to prolong the service life of the material, it is usually wiped with Protective and peelable protective layer for effective and temporary protection. At present, in the field of protective film, the research process of solvent-based protective film is relatively mature, such as Chinese patent CN1077446258A, which discloses a peelable resin and its preparation method and application, but the protective film prepared by the modified method uses a large amount of organic solvents, which is very harmful to the environment. unfriendly. However, compared with solvent-based protec...

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Problems solved by technology

[0004] In order to solve the shortcomings of the existing traditional protective film such as low protective strength, difficult peeling and single protective performance, water is selected as the solvent, polyvinyl alcohol is used as the base material of the protective film, and antioxidants, plasticizers, emulsifiers, and thickeners are supplemented. Additives such as water-based quick-drying agent, water-based flame retardant and Span 60 are sprayed for large-area protective construction. After drying, a layer of uniform, continuous and transparent protective film with flame-retardant function is formed. The materials used are environmentally friendly and clean, and can be passed Biodegradable, infiltrated into soil to increase stickiness, air permeability and water retention, especially suitable for soil improvement, the invention discloses its specific preparation method

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