iHeir-TQt is a highly effective, environmentally friendly, non-toxic mold inhibitor for emulsion paints, polymer emulsions, pigment pastes and all types of water-based coatings.
It can also be used to inhibit the growth of bacteria and fungi in the production and storage of printing inks and other aqueous organic products. iHeir-TQ has been used extensively in the prevention of mold and mildew in mass storage emulsions.
The U.S. Environmental Protection Agency (EPA) has approved iHeir-TQ as an in-can mold inhibitor for water-based paints and coatings. Numerous experiments and practical applications have proven iHeir-TQ’s mildew resistance to acrylic acid, polyvinyl acetate, butyl polystyrene and other copolymers.
Let’s first understand the structural characteristics of antistatic molecules. The structure of antistatic agents can be represented by the general formula R-Y-X, where R is a lipophilic group; X is a hydrophilic group; Y is a linking group.
The hydrophilic group shows polarity, and the lipophilic group shows non-polarity. There is a balance between the two, which is also called the hydrophilic-lipophilic balance value, which is represented by HLB. The larger the HLB value, the higher the polarity of the surfactant molecule; conversely, the smaller the HLB value, the lower the polarity of the surfactant molecule. The level of HLB value is the basic basis for judging the compatibility of antistatic agent and matrix compound, antistatic quick effect and durability. The lipophilic groups are mostly non-polar groups such as alkyl, alkaryl, aryl, and cyclohexyl groups. For alkyl lipophilic groups, the longer the carbon chain, the stronger the lipophilicity, and the better the compatibility with non-polar polymers; on the contrary, the shorter the carbon chain, the higher the polarity and the better the antistatic performance. , The faster the display of antistatic performance. Incorporates lipophilic groups and hydrophilic groups in common antistatic molecules.
The mechanism of antistatic agents has been discussed in detail in many monographs from various aspects, and most of them tend to be hygroscopic and wetting mechanisms. The moisture absorption mechanism believes that the hydrophilic groups in the antistatic agent molecules tend to be arranged on the outside during the curing process of the coating. Moisture forms a “water film” that is invisible to the naked eye. Such a “water film” provides ionization conditions for ionic surfactants, which not only forms a water-containing conductive layer, but also creates favorable conditions for ion conduction.
This “water film” builds a conductive channel, which reduces the surface resistance of the coating, leaks and releases static charges. Therefore, the antistatic effect of most antistatic agents depends on the compound structure and the relative humidity of the environment. Different from the mechanism of moisture absorption, shell ft wax some scholars believe that antistatic agents mainly play a lubricating effect. The lubricating effect of antistatic agents reduces surface friction, reduces the friction coefficient, and inhibits the generation of static charges to a certain extent.
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