News Details
Waterborne coatings special crosslinking agent
2017-6-30 16:00:13
Waterborne coatings special crosslinking agent
WAT - 4 is a water emulsion type of aliphatic polyisocyanate crosslinking agent, can be used for acrylic emulsion, VAE emulsion latex, synthetic rubber, polyurethane emulsion, polyvinyl acetate emulsion, and a variety of system of distribution of the emulsion system such as crosslinking agent. The performance of the adhesive can be improved by crosslinking, such as heat resistance, water resistance, plasticizer and solvent resistance.
It can also greatly increase the adhesion strength of adhesives. Due to the special surface active system wat-4 can be mixed quickly with the emulsion system under conventional low speed mixing, which achieves excellent dispersion effect. Compared with normal crosslinking agent, wat-4 has better mixing stability and storage stability, low viscosity under normal temperature, and not easy to produce turbidity and flocculation in low temperature.
Application of special crosslinking agent for waterborne coatings
1, WAT - 4 as a two-component water-borne coatings of crosslinking agent is widely used in waterborne wood paint, industrial paint, plastic water-based paint, etc., can improve the film scratch resistance, water resistance, impact strength, hardness and adhesion.
2. Wat-4 is suitable for waterborne polyurethane emulsion, acrylic emulsion, VAE emulsion, PVAC emulsion, etc., and the compound formulation system of these emulsions. It can improve the composite fastness, water resistance, heat resistance, solvent resistance and weather resistance.
3. Wat-4 can be used directly after solvent dilution, as a substrate for certain substrate.
4. The wat-4 should be mechanically stirred when it is added to the system to achieve a better dispersion effect. Manual agitation is not a solution that forms a homogenous solution, especially if the system is less viscous and is especially important to stir well. Mixing is not easy to form gel granules in the system.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
5. After joining wat-4, the two-component system must be used up within its applicable period. The duration of the application is not only related to the content of the polymer, but also to other components (such as resin, thickener, plasticizer, etc.). After the application period (usually a few hours), the gel state is not always present. It can be determined by measuring its heat resistance and water resistance.
6, WAT - 4 seal original preservation under 10 to 25 ℃, stable for 6 months. It is very sensitive to moisture, which can form carbon dioxide and insoluble urea. Therefore, the packing container must be kept sealed at all times. It should be avoided with moisture in moisture, solvents and moist containers. The resulting carbon dioxide increases the risk by increasing the pressure.
7. Application examples: water-based compound adhesive, automobile interior trim, water-based industrial paint
Sex polyurethane elastic lotion. The synthetic polyurethane elastic emulsion can be synthesized by direct dispersion of prepolymer.
) change lotion hydrophilic - hydrophilic. It is reported that the surface of the film is moderate with hydrophilic, which is helpful to improve the stain resistance. Reason: as a result of the hydrophilic group abhorred oily, oil or grease dirt even attached to the surface of a coating, also hard to migrate to the inside coating permeability, only temporary pollution formation, under the rain erosion, dirt will as the rain washed away, thus improve the fouling resistance.
Under the condition that the elastic properties are not affected, in addition to the elastic emulsion, it is put into other emulsions with high hardness; Do not use film as an auxiliary agent; Or adding special additives can improve the stain resistance.
In addition, correct coating design and coating operation is also important for cleaning the film.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
WAT - 4 is a water emulsion type of aliphatic polyisocyanate crosslinking agent, can be used for acrylic emulsion, VAE emulsion latex, synthetic rubber, polyurethane emulsion, polyvinyl acetate emulsion, and a variety of system of distribution of the emulsion system such as crosslinking agent. The performance of the adhesive can be improved by crosslinking, such as heat resistance, water resistance, plasticizer and solvent resistance.
It can also greatly increase the adhesion strength of adhesives. Due to the special surface active system wat-4 can be mixed quickly with the emulsion system under conventional low speed mixing, which achieves excellent dispersion effect. Compared with normal crosslinking agent, wat-4 has better mixing stability and storage stability, low viscosity under normal temperature, and not easy to produce turbidity and flocculation in low temperature.
Application of special crosslinking agent for waterborne coatings
1, WAT - 4 as a two-component water-borne coatings of crosslinking agent is widely used in waterborne wood paint, industrial paint, plastic water-based paint, etc., can improve the film scratch resistance, water resistance, impact strength, hardness and adhesion.
2. Wat-4 is suitable for waterborne polyurethane emulsion, acrylic emulsion, VAE emulsion, PVAC emulsion, etc., and the compound formulation system of these emulsions. It can improve the composite fastness, water resistance, heat resistance, solvent resistance and weather resistance.
3. Wat-4 can be used directly after solvent dilution, as a substrate for certain substrate.
4. The wat-4 should be mechanically stirred when it is added to the system to achieve a better dispersion effect. Manual agitation is not a solution that forms a homogenous solution, especially if the system is less viscous and is especially important to stir well. Mixing is not easy to form gel granules in the system.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
5. After joining wat-4, the two-component system must be used up within its applicable period. The duration of the application is not only related to the content of the polymer, but also to other components (such as resin, thickener, plasticizer, etc.). After the application period (usually a few hours), the gel state is not always present. It can be determined by measuring its heat resistance and water resistance.
6, WAT - 4 seal original preservation under 10 to 25 ℃, stable for 6 months. It is very sensitive to moisture, which can form carbon dioxide and insoluble urea. Therefore, the packing container must be kept sealed at all times. It should be avoided with moisture in moisture, solvents and moist containers. The resulting carbon dioxide increases the risk by increasing the pressure.
7. Application examples: water-based compound adhesive, automobile interior trim, water-based industrial paint
Sex polyurethane elastic lotion. The synthetic polyurethane elastic emulsion can be synthesized by direct dispersion of prepolymer.
) change lotion hydrophilic - hydrophilic. It is reported that the surface of the film is moderate with hydrophilic, which is helpful to improve the stain resistance. Reason: as a result of the hydrophilic group abhorred oily, oil or grease dirt even attached to the surface of a coating, also hard to migrate to the inside coating permeability, only temporary pollution formation, under the rain erosion, dirt will as the rain washed away, thus improve the fouling resistance.
Under the condition that the elastic properties are not affected, in addition to the elastic emulsion, it is put into other emulsions with high hardness; Do not use film as an auxiliary agent; Or adding special additives can improve the stain resistance.
In addition, correct coating design and coating operation is also important for cleaning the film.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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