News Details
Anti-mold antibacterial and water-based polyurethane coating crosslinking agent
2017-6-11 23:52:37
Anti-mold antibacterial and water-based polyurethane coating crosslinking agent
At present, the domestic research on antibacterial polyurethane is mainly by adding inorganic antibacterial agent, in which to add the silver is given priority to, and can add zinc oxide and nano TiO2 as an antimicrobial agent.
The research of functional WPU coatings is developing in the direction of high sexual energy and multi-function, especially the molecular design and synthesis process of WPU.
When synthesizing WPU, various methods are introduced to introduce the special functions of the molecular link to the main chain or side chain, which makes the WPU special function. The development of a new type of efficient water-friendly reamer or the use of various functional groups to introduce special crosslinking agents, improving WPU coating water, solvent resistance and storage stability; Use of all kinds of nanometer materials, renewable materials by chemical modification to molecular composite with a sharp rise in the material performance, these methods are functional for the future development direction of WPU coatings.
By the sharp titanium type nano TiO2 preparation into water-based polyurethane composite coating, and the antimicrobial properties of coating film are a series of tests, the results show that sharp type titanium nanometer TiO2 adhesion of Marine bacteria inhibition, the photocatalytic oxidation for attached to kill bacteria, bacteria number type with sharp titanium nanometer TiO2 content increase and decrease.
Organic antimicrobial water-based polyurethane coating. Antibacterial groups of organic polymer compounds are antibacterial groups covalent bonding on the insoluble carrier, not only can be reused, and antibacterial group focused on the carrier surface, sterilization and efficient fast, so the polymer antibacterial agent is becoming a hot spot in today's research and development.
Tang Guodong etc with homemade amino - 3-2 - [(2 - hydroxy - 5 - nitro - toluenesulfonic) amino] - 2 - butylene nitrile for microbicides, sterilization of WPU emulsion was synthesized. The study showed that when the quality score of fungicide was 0.9%, the bacteriostatic rate reached more than 90%. The crosslinking of amino, hydroxyl groups and polyurethane in the structure of fungicide improved the mechanical properties of the film.
Zhong Dafei etc using small molecular organic antibacterial,3,5 six hydrogen - 1-3 hydroxyethyl triazine (TNO) by chemical reaction with WPU together, make the WPU has antibacterial function, than traditional adding antibacterial agent through physical mixing more long-lasting; And because TNO is a crosslinking agent, the mechanical properties and thermal properties of PU are improved. Therefore, the effect of the tno-pu function is long-lasting and stable, and is expected to be applied in toys, furniture, automobile and health care.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
Nano-materials modified water-based polyurethane anti-corrosion coatings. Nanomaterials have unique surface effect, volume effect, quantum effect and interface effect, etc., to use nanoparticles modified polyurethane anti-corrosion coatings can produce good results.
YehJM etc with poly (caprolactone (PCLS), dihydroxy methyl propionic acid (DMPA) and 4, 4 '- dicyclohexyl methane diisocyanate (H12MDI) as the main raw material synthesis of WPU emulsion, such as through aqueous dispersion technology will nanometer montmorillonite (Na + - MMT) dispersed in WPU emulsion, the preparation of a series of WPU/Na + - MMT composite emulsion.
Through gas permeameter (GPA), TG and DSC test shows that adding Na + - MMT WPU compared with not added, the permeability of coating is reduced, heat resistance, optical transparency reduced; Water based polyurethane coating with 3% Na + MMT has excellent protection against corrosion.
Design and application of anti-graffiti type water-based polyurethane coating. The small graffiti advertisement is called "the city's psoriasis", which will have a bad effect on the city's appearance and the difficulty of removing it. The more effective method is to brush the graffiti coating. The anti-graffiti coating must have multi-function features, including good hydrophobic oil, stain resistance, scratchness, chemical resistance and cleanliness.
The main properties of the anti-graffiti coating are the resin used, which is used mostly in solvent polyurethane, silicone resin and fluorine resin. With the world's restrictions on VOC emissions, the development of modified WPU anti-graffiti paint has become imperative. Improve the coating antigraffiti mainly by improving the surface performance of the coating is difficult to adsorption of pollutants and easy to remove, and improve the density of coating pollutants is not easy to penetrate the two basic approaches.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
At present, the domestic research on antibacterial polyurethane is mainly by adding inorganic antibacterial agent, in which to add the silver is given priority to, and can add zinc oxide and nano TiO2 as an antimicrobial agent.
The research of functional WPU coatings is developing in the direction of high sexual energy and multi-function, especially the molecular design and synthesis process of WPU.
When synthesizing WPU, various methods are introduced to introduce the special functions of the molecular link to the main chain or side chain, which makes the WPU special function. The development of a new type of efficient water-friendly reamer or the use of various functional groups to introduce special crosslinking agents, improving WPU coating water, solvent resistance and storage stability; Use of all kinds of nanometer materials, renewable materials by chemical modification to molecular composite with a sharp rise in the material performance, these methods are functional for the future development direction of WPU coatings.
By the sharp titanium type nano TiO2 preparation into water-based polyurethane composite coating, and the antimicrobial properties of coating film are a series of tests, the results show that sharp type titanium nanometer TiO2 adhesion of Marine bacteria inhibition, the photocatalytic oxidation for attached to kill bacteria, bacteria number type with sharp titanium nanometer TiO2 content increase and decrease.
Organic antimicrobial water-based polyurethane coating. Antibacterial groups of organic polymer compounds are antibacterial groups covalent bonding on the insoluble carrier, not only can be reused, and antibacterial group focused on the carrier surface, sterilization and efficient fast, so the polymer antibacterial agent is becoming a hot spot in today's research and development.
Tang Guodong etc with homemade amino - 3-2 - [(2 - hydroxy - 5 - nitro - toluenesulfonic) amino] - 2 - butylene nitrile for microbicides, sterilization of WPU emulsion was synthesized. The study showed that when the quality score of fungicide was 0.9%, the bacteriostatic rate reached more than 90%. The crosslinking of amino, hydroxyl groups and polyurethane in the structure of fungicide improved the mechanical properties of the film.
Zhong Dafei etc using small molecular organic antibacterial,3,5 six hydrogen - 1-3 hydroxyethyl triazine (TNO) by chemical reaction with WPU together, make the WPU has antibacterial function, than traditional adding antibacterial agent through physical mixing more long-lasting; And because TNO is a crosslinking agent, the mechanical properties and thermal properties of PU are improved. Therefore, the effect of the tno-pu function is long-lasting and stable, and is expected to be applied in toys, furniture, automobile and health care.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
Nano-materials modified water-based polyurethane anti-corrosion coatings. Nanomaterials have unique surface effect, volume effect, quantum effect and interface effect, etc., to use nanoparticles modified polyurethane anti-corrosion coatings can produce good results.
YehJM etc with poly (caprolactone (PCLS), dihydroxy methyl propionic acid (DMPA) and 4, 4 '- dicyclohexyl methane diisocyanate (H12MDI) as the main raw material synthesis of WPU emulsion, such as through aqueous dispersion technology will nanometer montmorillonite (Na + - MMT) dispersed in WPU emulsion, the preparation of a series of WPU/Na + - MMT composite emulsion.
Through gas permeameter (GPA), TG and DSC test shows that adding Na + - MMT WPU compared with not added, the permeability of coating is reduced, heat resistance, optical transparency reduced; Water based polyurethane coating with 3% Na + MMT has excellent protection against corrosion.
Design and application of anti-graffiti type water-based polyurethane coating. The small graffiti advertisement is called "the city's psoriasis", which will have a bad effect on the city's appearance and the difficulty of removing it. The more effective method is to brush the graffiti coating. The anti-graffiti coating must have multi-function features, including good hydrophobic oil, stain resistance, scratchness, chemical resistance and cleanliness.
The main properties of the anti-graffiti coating are the resin used, which is used mostly in solvent polyurethane, silicone resin and fluorine resin. With the world's restrictions on VOC emissions, the development of modified WPU anti-graffiti paint has become imperative. Improve the coating antigraffiti mainly by improving the surface performance of the coating is difficult to adsorption of pollutants and easy to remove, and improve the density of coating pollutants is not easy to penetrate the two basic approaches.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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