Water soluble low-temperature-solidification appliance insulating varnish and preparation method thereof

Abstract

The invention discloses a water soluble low-temperature solidification appliance insulating varnish and a preparation method thereof. The water soluble low-temperature solidification appliance insulating varnish comprises a low-temperature latent initiator, wherein the low-temperature latent initiator accounts for 0.10 to 1.5 percent of the total weight of the water soluble low-temperature solidification appliance insulating varnish; and the low-temperature latent initiator is benzoyl peroxide. The preparation method comprises the following steps of: firstly, uniformly mixing acrylic ester, organic silicon resin, polyalcohol, the low-temperature latent initiator and 50 percent de-ionized water with slowly stirring at room temperature; secondly, adding a flatting agent, a curing agent, a defoamer and the other 50 percent de-ionized water in sequence and still stirring slowly; and finally, adding solution of alkylol amine dropwise, and adjusting pH to 8.0 to 9.0 to obtain the required product. When the preparation method is implemented, the baking, solidification and film molding temperature of the varnish is as low as only 80 to 90 DEG C; and a varnish film has high adhesion, high humidity, heat and slat-fog resistance and high water solubility and produces no harmful gas in use.

Description

technical field [0001] The invention relates to an insulating varnish and a preparation method thereof, in particular to a water-soluble low-temperature curing electrical insulation varnish and a preparation method thereof. Background technique [0002] The insulation varnishes widely used in electrical appliances (such as small and medium-sized transformers, coils, micro-motors, etc.) In the process of storage, transportation and use, there are potential safety hazards, which are not conducive to production and endanger the health of users. [0003] The water-soluble insulating varnish is favored by people due to its advantages of environmental protection, non-toxicity and safety. It is an inevitable trend to develop water-soluble insulating varnish. In developed countries such as Europe, Japan, and the United States, the technology of water-soluble insulating varnishes developed earlier and has some applications. Our country is still in its infancy, only in the developm...

AI Technical Summary

Problems solved by technology

[0004] The defect of the prior art is that the baking and curing temperature is too high, which not only consumes more energy, but also many electrical products cannot withstand the baking temperature above 100°C at all.