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    Home > Coatings News > Resin News > Water-based insulating paint is expected to replace solvent-based insulating paint!

    Water-based insulating paint is expected to replace solvent-based insulating paint!

    • Last Update: 2021-07-30
    • Source: Internet
    • Author: User
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    Insulating paint, also called insulating paint, is a kind of paint with excellent electrical insulation
    .
    It has good electrochemical properties, thermal properties, mechanical properties and chemical properties, mostly varnishes, but also colored paints

    .
    Insulating paint is a kind of special paint in the
    paint category
    .
    Online coatingol.
    com
    .
    Insulating paint is an important insulating material based on high molecular polymers that can be cured into insulating films or insulators under certain conditions

    .
    At present, the traditional solvent-based insulating varnishes used by various domestic motor manufacturers contain a large amount of inflammable, explosive and toxic solvents such as benzene and ketone esters.
    After construction, they volatilize a large number of harmful substances, which threaten human health and cause environmental pollution.
    It is gradually replaced by water-based insulating paint

    .
    In order to reduce the emission of organic solvents and meet the national environmental protection requirements of low VOC, many domestic institutions have focused on the development of water-based insulating paints in recent years

    .


    Introduction of water-based insulating paint

    Water-based insulating paint refers to insulating paint with water as the main solvent.
    Water-based insulating paint includes two types: water-soluble and water-emulsive

    .
    Water-based insulating paint mainly has the following problems:

    As the main body of the water-based insulating paint, the water-based polymer itself needs to have a large number of polar groups, ionic groups or the emulsification of these groups to dissolve or disperse in water.
    These groups should be reduced to Very low level, otherwise hydrolysis in a humid environment will seriously affect the insulation and mildew resistance of the paint film

    .

    The corrosion of metal by water or ionic groups often damages the insulation treatment objects of metal-containing parts
    .
    Reasonable use of anti-flash corrosion technology has solved the corrosive effect of water-based insulating paint on metal parts to a certain extent, but it will also reduce the insulation performance of the cured product

    .

    It must have a certain degree of mechanical strength, especially at high temperatures, to maintain a certain bond strength, otherwise, under the action of electromagnetic force and mechanical stress, the winding may loose or deform and cause accidents; however, it is usually soluble in water The insulating varnish is difficult to have good mechanical strength and adhesion
    .


    Development of water-based insulating paint

    With the development of society, mankind's awareness of the protection of the living environment has also continued to increase.
    For the electrical machinery industry, many requirements and restrictions on hygiene, environmental protection, and labor protection have gradually increased, and everyone's green production awareness has been further strengthened

    .
    In particular, motor purchasers in Western countries such as the United States, Japan, and the European Union have clearly put forward their requirements for the use of environmentally friendly insulating paints

    .
    Therefore, it is imperative to develop and apply environmentally friendly water-based insulating paint

    .


    Since 2000, China has taken environmentally-friendly water-based insulating paint as a research project, organized scientific and technical personnel to tackle key problems, and many paint manufacturers have carried out some forward-looking research
    .

    Information obtained from different channels can be found that some insulating paint manufacturers have developed and produced products that meet the national standards for environmentally friendly products and reach the domestic advanced level, which can be used to impregnate electrical coils, transformers, motors, motors, generators, and coils.
    Water-soluble insulating paint, and has the functions of moisture proof, heat dissipation, insulation, fixing, etc.
    , which can meet the insulating and curing performance requirements of oil-based insulating paint

    .

    Compared with oil-based insulating paint, environmentally friendly water-based insulating paint does not contain benzene and other harmful organic solvents, and is a water-based emulsion paint with low voc value.
    The most prominent feature is environmental protection, no emissions of toxic and harmful substances, low viscosity, and penetration.
    Good performance, thin film formation, good for heat dissipation of electrical appliances under long-term working conditions, and low cost.
    It can be expected that the successful development of water-soluble insulating paint will revolutionize the use of insulating paint in China's motor industry

    .

    Compared with traditional solvent-based insulating paint, water-based insulating paint has the following advantages in addition to environmental protection advantages:  

    ● Low viscosity
    .
    It is conducive to dipping and penetrating into the inside of the motor coil, and the filling performance is better, which can reduce or eliminate the noise generated by the operation of the motor or transformer

    .
      

    ● Non-toxic and tasteless
    .
    Water-based insulating paint uses water as the solvent, and only a small amount of volatile edible ethanol is used as an auxiliary solvent

    .
    In actual use, customers can add deionized water or tap water in an appropriate proportion for dilution according to the specific requirements of the product, which is more economical

    .

    ● Use water-based insulating varnish to impregnate, the winding surface is thinner than solvent-based insulating varnish, which is more conducive to heat dissipation during motor operation
    .

    ● Good high temperature resistance, which is significantly higher than all solvent-based insulating varnishes on the market
    .
    The water-based insulating paint has good high temperature resistance.
    After testing, the film surface is not sticky at 170°C, and the temperature resistance is above 240°C

    .

    ● Convenient and safe to use, transport and store.
    Water-based insulating paint is conducive to safe production and improving the working conditions of employees

    .
    The price is reasonable and cost-effective compared to solvent-based insulating varnishes

    .

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