News Details
Latex paint is used crosslinking agent
2017-6-20 19:10:29
Latex paint is used crosslinking agent
Emulsioni paint is the main trend of building coating development, the foreign construction use coating is basically emulsioni paint. In the past, the construction of latex paint was generally flat, and in the 1970s, it was made of semi-gloss latex paint and light latex paint.
The future of the construction coating industry will undoubtedly be in the development of reducing the use of organic solvents, increasing durability and anti-pollution, improving decorative effect or special function.
Ways to reduce the use amount of organic solvent, is the development of low pollution or no pollution, save resources or the provincial energy type coating, such as coating, solvent-free or non-aqueous dispersions coatings, high solid coatings, radiation crosslinking coatings and powder coatings, etc.
The way of increasing durability and resistance to pollution is to develop organic and inorganic compound decorative coatings, ceramic tiles, glaze coatings and durability and good anti-pollution coating materials.
The way to improve the effect of coating is: the interior wall coating should be developed in the direction of stereoscopic texture, multicolor, pattern and elastic sound. The exterior wall coating should be made by thin, single layer, thick, complex, fine line and pattern and various concave and convex shapes.
Floor coating should be in the direction of flexibility, insulation sound, anti-static, wear-resisting and anti-pollution, easy to clean and clean and imitate the pattern of grain of grain, ground, natural stone.
Coatings in the future is with emphasis on functional, or need the fanciful and the functional and architectural coatings, architectural coatings application technology at the same time also to increasing with the degree of modernization construction and the corresponding development, this to reduce the workload of construction site decoration, development and use of high quality architectural coatings, to ensure that the architectural coatings for buildings with high ornamental and functional and high weather resistance and so on all has the very vital significance.
Over the years, the use of emulsioni paint limited in paper, wood, cement products and wall decoration and protection, and almost all steel with coating, is still not out of mainly organic solvent coatings. In order to prevent the surface of the steel surface to be coated with emulsioni rust, have studied metallic latex primer in abroad, it is the application scope of emulsioni paint to be expanded.
The experimental results show that the polymerization ratio is stable, and the friction fastness of the printed products can meet the requirements of the ratio of Yin/non-ionic emulsifiers to 1.0/1.5 or 1.0/2.0. The selection of the shade/non-ionized emulsifier ratio was 1.0/1.5, and the other conditions were unchanged.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
The amount of emulsifying agent is too low, the polymerization is unstable, the dosage is too large, the wet friction fastness of the printed product is reduced, the result of the synthesis, the amount of emulsifying agent is 3.0% of the total amount of the monomer and the overall performance is better.
The initiator has an important influence on emulsion polymerization rate and monomer conversion rate. The emulsion polyacrylate copolymer system has been used for the hydrolytic pyrolysis of sulfates, which are commonly used in ammonium sulfate, potassium sulfate and sodium sulfate.
In this experiment, the water soluble potassium sulfate was used as initiator, and the results of the experiment showed that the dosage of the initiator was too much, the emulsion polymerization was not easy to control, and the coagulation was more concentrated. The amount of the initiator was too low, the monomer content was higher in the product, and the monomer was stronger in the product. The initiator of 0.3 percent of monomer is reactive, and the reaction is complete without monomer.
The reaction temperature is very important to the emulsion polymerization rate and the quality of the adhesive. High temperature increases the rate of polymerization and reduces reaction time, but is prone to violence. Low temperature doesn't trigger the reaction, and the reaction takes longer. Experiments show that in the process of the reaction temperature control in 80 ~ 85 ℃, the end, the temperature rise to about 90 ℃ heat preservation for a period of time, uniform stability, can be obtained with a blue fluorescent emulsion.
Crocking, the soaping fastness of printed fabrics have reached or exceeded the national standard, feel soft, colour and lustre is clear, and high color bright, that can complete the production of adhesives fixation on fiber forming a solid film.
Experiment to get the best since the crosslinking pigment printing adhesives technology conditions as follows: 2 - EHA: BA, MMA: St: M = 24:40:20:11:5, KPS: 0.3%, compound emulsifier dosage of LAS and NP - 10 (1.0/1.5) to 3.0% of the total monomers, the partial monomer emulsion polymerization process, in 80-85 ℃ 4 h good comprehensive performance for pigment printing adhesives.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Emulsioni paint is the main trend of building coating development, the foreign construction use coating is basically emulsioni paint. In the past, the construction of latex paint was generally flat, and in the 1970s, it was made of semi-gloss latex paint and light latex paint.
The future of the construction coating industry will undoubtedly be in the development of reducing the use of organic solvents, increasing durability and anti-pollution, improving decorative effect or special function.
Ways to reduce the use amount of organic solvent, is the development of low pollution or no pollution, save resources or the provincial energy type coating, such as coating, solvent-free or non-aqueous dispersions coatings, high solid coatings, radiation crosslinking coatings and powder coatings, etc.
The way of increasing durability and resistance to pollution is to develop organic and inorganic compound decorative coatings, ceramic tiles, glaze coatings and durability and good anti-pollution coating materials.
The way to improve the effect of coating is: the interior wall coating should be developed in the direction of stereoscopic texture, multicolor, pattern and elastic sound. The exterior wall coating should be made by thin, single layer, thick, complex, fine line and pattern and various concave and convex shapes.
Floor coating should be in the direction of flexibility, insulation sound, anti-static, wear-resisting and anti-pollution, easy to clean and clean and imitate the pattern of grain of grain, ground, natural stone.
Coatings in the future is with emphasis on functional, or need the fanciful and the functional and architectural coatings, architectural coatings application technology at the same time also to increasing with the degree of modernization construction and the corresponding development, this to reduce the workload of construction site decoration, development and use of high quality architectural coatings, to ensure that the architectural coatings for buildings with high ornamental and functional and high weather resistance and so on all has the very vital significance.
Over the years, the use of emulsioni paint limited in paper, wood, cement products and wall decoration and protection, and almost all steel with coating, is still not out of mainly organic solvent coatings. In order to prevent the surface of the steel surface to be coated with emulsioni rust, have studied metallic latex primer in abroad, it is the application scope of emulsioni paint to be expanded.
The experimental results show that the polymerization ratio is stable, and the friction fastness of the printed products can meet the requirements of the ratio of Yin/non-ionic emulsifiers to 1.0/1.5 or 1.0/2.0. The selection of the shade/non-ionized emulsifier ratio was 1.0/1.5, and the other conditions were unchanged.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
The amount of emulsifying agent is too low, the polymerization is unstable, the dosage is too large, the wet friction fastness of the printed product is reduced, the result of the synthesis, the amount of emulsifying agent is 3.0% of the total amount of the monomer and the overall performance is better.
The initiator has an important influence on emulsion polymerization rate and monomer conversion rate. The emulsion polyacrylate copolymer system has been used for the hydrolytic pyrolysis of sulfates, which are commonly used in ammonium sulfate, potassium sulfate and sodium sulfate.
In this experiment, the water soluble potassium sulfate was used as initiator, and the results of the experiment showed that the dosage of the initiator was too much, the emulsion polymerization was not easy to control, and the coagulation was more concentrated. The amount of the initiator was too low, the monomer content was higher in the product, and the monomer was stronger in the product. The initiator of 0.3 percent of monomer is reactive, and the reaction is complete without monomer.
The reaction temperature is very important to the emulsion polymerization rate and the quality of the adhesive. High temperature increases the rate of polymerization and reduces reaction time, but is prone to violence. Low temperature doesn't trigger the reaction, and the reaction takes longer. Experiments show that in the process of the reaction temperature control in 80 ~ 85 ℃, the end, the temperature rise to about 90 ℃ heat preservation for a period of time, uniform stability, can be obtained with a blue fluorescent emulsion.
Crocking, the soaping fastness of printed fabrics have reached or exceeded the national standard, feel soft, colour and lustre is clear, and high color bright, that can complete the production of adhesives fixation on fiber forming a solid film.
Experiment to get the best since the crosslinking pigment printing adhesives technology conditions as follows: 2 - EHA: BA, MMA: St: M = 24:40:20:11:5, KPS: 0.3%, compound emulsifier dosage of LAS and NP - 10 (1.0/1.5) to 3.0% of the total monomers, the partial monomer emulsion polymerization process, in 80-85 ℃ 4 h good comprehensive performance for pigment printing adhesives.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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