News Details
Water-based paint crosslinking agent
2017-6-15 12:00:44
Water-based paint crosslinking agent
Wood coatings of oil to water, further technology mainly face the following challenges: one is the insufficient film hardness, 2 it is difficult to achieve closed effect, three is lumber bilge muscle problems, four drying process is greatly influenced by the environment.
The performance of coating is mostly made by resin. The ability and cost of waterborne resin depends on the properties and cost of waterborne resin.
The field that furniture USES is different, the requirement of coating performance is different.
For example, outdoor furniture requires coating water and water white, high tolerance and flexibility. The interior furniture is required for hardness, appearance, chemical resistance and mechanical properties. This requires a targeted selection of different resin systems to enter the recipe design. In the case of resin, oil paint resin also has a lot of classification, such as nitrocellulose lacquer, PU lacquer, UV paint etc.
Before wood coatings using resin are mostly acrylic emulsion, although the cost is low, quick drying, grinding, but the performance of a single, it is difficult to match the oily coating, so you need to have more water-based resin system to form an overall effect to replace oleoresin. Improve the performance, reduce the sensitivity of the paint film to the environment during the drying process, solve the problem of swelling, and improve the wettability of the wood. There are now PUD, PUA, water-based UV, water-based bi-component systems.
The development of new chemical materials in chemical industry has provided a strong guarantee for the performance of water-based coatings. Emulsion in the production of temperature control is critical, if you don't sensitive to temperature control equipment, there will be a wide range of temperature fluctuations, lead to performance differences between batches outside the margin of error.
It is understood that the main difference between water-based coating and oil paint is the solvent. Coating film, flow and flow, film performance are closely related to the solvent. Solvent oil paint variety, visual needs to adjust the solvent, and only water and a small amount of solvent, water-based coatings to meet the oily coating film forming, flow and flow flat, you need to add additives.
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.
In theory, water-based lotions can be better materialized than oil systems because they have higher relative molecular mass. But as a result of oil system of raw materials is well developed, technology research and development personnel can through special raw materials selection, or additives to obtain high performance coating. Water-based products, by contrast, also is not very rich, nor the performance of the emulsion is available, the correct use of film-forming agent, collocation is suitable for the auxiliary system to improve the film performance is critical.
Predictably, with the accelerating process of oil to water, will emerge a batch of suitable for water-based coating with a new type of film forming additive, the rheological additives, flow ping agent, crosslinking agent, functional filler.
In addition, because the waterborne wood coatings formula contains a lot of organic material, very suitable for the growth of microbes and microbial slime can break down the ingredients in wood coatings, and influence the liquidity of the products, such as performance, lead to product bad, affect the use. Therefore, it is necessary to control microbial growth, tank preservatives need has the following features: broad spectrum antimicrobial, pH applicability is wide and satisfy the requirement of the process under the condition of protection, operation safety, good compatibility, low amount, conform to the requirements of the relevant laws and regulations.
The shading system should be waterborne. Because the solvent is different, the demand of the water-based coating on the colouring system is different from the oil paint, which is the result of the development of the water-based colouring system.
Pigment is a transparent color scheme in the coating industry, playing an increasingly important role in the application of waterborne coatings. Good water-based color concentrate needs not only has good compatibility with waterborne coatings, but also to use toner has good fire resistance, temperature tolerance, high color migration and enough brilliance, has all the characteristics of the solvent products, in the performance can be better user acceptance.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Wood coatings of oil to water, further technology mainly face the following challenges: one is the insufficient film hardness, 2 it is difficult to achieve closed effect, three is lumber bilge muscle problems, four drying process is greatly influenced by the environment.
The performance of coating is mostly made by resin. The ability and cost of waterborne resin depends on the properties and cost of waterborne resin.
The field that furniture USES is different, the requirement of coating performance is different.
For example, outdoor furniture requires coating water and water white, high tolerance and flexibility. The interior furniture is required for hardness, appearance, chemical resistance and mechanical properties. This requires a targeted selection of different resin systems to enter the recipe design. In the case of resin, oil paint resin also has a lot of classification, such as nitrocellulose lacquer, PU lacquer, UV paint etc.
Before wood coatings using resin are mostly acrylic emulsion, although the cost is low, quick drying, grinding, but the performance of a single, it is difficult to match the oily coating, so you need to have more water-based resin system to form an overall effect to replace oleoresin. Improve the performance, reduce the sensitivity of the paint film to the environment during the drying process, solve the problem of swelling, and improve the wettability of the wood. There are now PUD, PUA, water-based UV, water-based bi-component systems.
The development of new chemical materials in chemical industry has provided a strong guarantee for the performance of water-based coatings. Emulsion in the production of temperature control is critical, if you don't sensitive to temperature control equipment, there will be a wide range of temperature fluctuations, lead to performance differences between batches outside the margin of error.
It is understood that the main difference between water-based coating and oil paint is the solvent. Coating film, flow and flow, film performance are closely related to the solvent. Solvent oil paint variety, visual needs to adjust the solvent, and only water and a small amount of solvent, water-based coatings to meet the oily coating film forming, flow and flow flat, you need to add additives.
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.
In theory, water-based lotions can be better materialized than oil systems because they have higher relative molecular mass. But as a result of oil system of raw materials is well developed, technology research and development personnel can through special raw materials selection, or additives to obtain high performance coating. Water-based products, by contrast, also is not very rich, nor the performance of the emulsion is available, the correct use of film-forming agent, collocation is suitable for the auxiliary system to improve the film performance is critical.
Predictably, with the accelerating process of oil to water, will emerge a batch of suitable for water-based coating with a new type of film forming additive, the rheological additives, flow ping agent, crosslinking agent, functional filler.
In addition, because the waterborne wood coatings formula contains a lot of organic material, very suitable for the growth of microbes and microbial slime can break down the ingredients in wood coatings, and influence the liquidity of the products, such as performance, lead to product bad, affect the use. Therefore, it is necessary to control microbial growth, tank preservatives need has the following features: broad spectrum antimicrobial, pH applicability is wide and satisfy the requirement of the process under the condition of protection, operation safety, good compatibility, low amount, conform to the requirements of the relevant laws and regulations.
The shading system should be waterborne. Because the solvent is different, the demand of the water-based coating on the colouring system is different from the oil paint, which is the result of the development of the water-based colouring system.
Pigment is a transparent color scheme in the coating industry, playing an increasingly important role in the application of waterborne coatings. Good water-based color concentrate needs not only has good compatibility with waterborne coatings, but also to use toner has good fire resistance, temperature tolerance, high color migration and enough brilliance, has all the characteristics of the solvent products, in the performance can be better user acceptance.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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