Water-based graphite film separant and preparation method thereof

Abstract

The invention provides a water-based graphite film separant applied to a film separant and a preparation method of the water-based graphite film separant. The water-based graphite film separant comprises the following components: 20-40 parts of graphite tailings; 3-10 parts of an organic thickening agent; 1-5 parts of a surfactant; 1-5 parts of a wetting agent; 0.1-0.5 part of an antiseptic bactericide; and 40-70 parts of deionized water. On the second aspect, the invention provides a preparation method of an aqueous graphite suspension. The invention has the advantages that firstly, the graphite tailings are used for preparing the film separant, so that resources are effectively recycled, and the production cost is greatly reduced; secondly, the product is simple in preparation process and suitable for large-scale industrialization; and thirdly, the diluted film separant is less in foaming, stable in dispersity in water, free of precipitation and excellent in isolation effect, and has the characteristics of no decomposition at high temperature, no influence on the appearance of the film and the like.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a water-based graphite film release agent and a preparation method thereof. Background technique [0002] After the rubber is mixed, it cannot be used immediately, but needs to be parked for a certain period of time. And because of the self-adhesiveness of the unvulcanized film itself, and the adhesion phenomenon is easy to occur under the action of pressure, which causes great difficulties to the subsequent processing and transportation of the film. Therefore, rubber manufacturers will apply a layer of film release agent on the surface of unvulcanized films before stacking them to prevent the films from sticking to each other. [0003] At present, commercially available film release agents are mainly divided into powder, liquid or suspension-based dispersants, most of which are light in color. In the process of use, the powder form is easy to raise dust, ...

AI Technical Summary

Problems solved by technology

The liquid form is mainly silicone oil, which has a good isolation effect, but is relatively expensive

For aqueous suspension, it is relatively environmentally friendly, and the packaging and transportation are relatively simple, but the preparation is difficult and the suspension stability is poor

In addition, most of the current film release agents will add a large amount of dispersant, which has a strong odor and will produce a lot of foaming during the dilution process. After drying, it is easy to form obvious uneven light-colored stains on the surface of the film.

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