News Details
Modified amine epoxy coating crosslinking agent
2017-5-6 11:51:26
Modified amine epoxy coating crosslinking agent. This article chooses the cashew shell oil modified amine epoxy crosslinking agent, ketone imide crosslinking agent to mix according to certain proportion, and both the preparation of samples.
Test method is as follows: the selection has been treated 500 mm x 500 mm x 50 mm of concrete specimen, surface treatment after soaking in clean water after 24 h bails out, wipe with wet cloth in addition to the coating surface water droplets, standard under the condition of natural park 20 min; And then painting the first line of paint, coating, parked in the air again after 3 h and test table dry time, immersed in 3% NaCl solution, take out after 12 h, park 9 h standard condition; Put another one until the whole painting is finished and the corresponding test is completed. After maintenance 7 d, complete the corresponding test.
Mixed crosslinking agent of drying time and cashew nut oil crosslinking agent of drying time, ketone imide is obviously better than the kind of crosslinking agent, is mainly a phenolic hydroxyl group on the cashew nut oil, to the cross-linking reaction of epoxy and amine have good catalytic effect, coating drying quickly, can quickly crosslinking.
At the same time with mixed crosslinking agent and ketone imide adhesion of crosslinking agent has obvious advantages, mainly because the paint coating substrate surface is water, ketimine can kind of crosslinking agent and water reaction, and cashew nut oil cannot be completely discharge the water crosslinking agent, formed between coating and substrate are mixed with water, poor adhesion. The mixed crosslinking agent is combined with no water, combined with the anti-corrosion properties of the cashew oil, to make sure that the product is water-resistant and salt-tolerant.
With cashew shell oil modified amine epoxy crosslinking agent and ketone imide crosslinking agent of organic combination, with the advantage of the two, both the cashew shell oil modified amine epoxy crosslinking agent of excellent chemical corrosion prevention and rapid crosslinking performance, also had the ketone imide kind of crosslinking agent in wet area the advantage of crosslinking.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packingļ¼ net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
When coating contains a small amount of silane coupling solvent, after its coating, silane and migrate to the coating and substrate interface, and the moisture on the surface of inorganic reaction, hydrolysis produce silanol base, and with the substrate surface hydroxyl hydrogen bond or condensation into - Si - M (M) for inorganic surface, and silane molecules and silanol condensation, gathered in each other between form reticular structure of the film covering on the surface of the substrate.
Even under water leaching condition, the coating of silane coupling agent is attached to various inorganic substrate. Within the boundary layer between the have and the substrate, the interaction between silane and have been, the reticular structure of silane and have mutual penetration, enhance the cohesion and the stability of water erosion resistance, and stress so as to make a high modulus of substrate have been transferred to the low modulus, significantly improve the adhesion to substrate.
The effect of adding silane coupling agent on the adhesion of the product was tested by experiment, and the test method was as follows: the experiment of concrete was applied to the bottom material. Selection has treated 500 mm x 500 mm x 50 mm of concrete specimen, surface treatment after soaking in clean water after 24 h bails out, wipe with wet cloth in addition to the coating surface water droplets, standard under the condition of natural park 20 min; Then the first coating, after the coating, the 3 h in the air, the immersion in the 3% NaCl solution, after 12 h, the standard condition is to park 9 h; Once again, finish the entire coating and complete the corresponding test, maintain 7 d and complete the corresponding test.
The results of the experiment showed that the adhesion was improved by adding silane coupling agent, and the effect of improving corrosion resistance was achieved.
Wet cross-linked epoxy coatings are fast dry, can continue to underwater crosslinking, excellent abrasion resistance, resistant to salt water resistance, such as performance, to ensure the smooth coating, and ensure the coating can achieve the best protection effect.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Test method is as follows: the selection has been treated 500 mm x 500 mm x 50 mm of concrete specimen, surface treatment after soaking in clean water after 24 h bails out, wipe with wet cloth in addition to the coating surface water droplets, standard under the condition of natural park 20 min; And then painting the first line of paint, coating, parked in the air again after 3 h and test table dry time, immersed in 3% NaCl solution, take out after 12 h, park 9 h standard condition; Put another one until the whole painting is finished and the corresponding test is completed. After maintenance 7 d, complete the corresponding test.
Mixed crosslinking agent of drying time and cashew nut oil crosslinking agent of drying time, ketone imide is obviously better than the kind of crosslinking agent, is mainly a phenolic hydroxyl group on the cashew nut oil, to the cross-linking reaction of epoxy and amine have good catalytic effect, coating drying quickly, can quickly crosslinking.
At the same time with mixed crosslinking agent and ketone imide adhesion of crosslinking agent has obvious advantages, mainly because the paint coating substrate surface is water, ketimine can kind of crosslinking agent and water reaction, and cashew nut oil cannot be completely discharge the water crosslinking agent, formed between coating and substrate are mixed with water, poor adhesion. The mixed crosslinking agent is combined with no water, combined with the anti-corrosion properties of the cashew oil, to make sure that the product is water-resistant and salt-tolerant.
With cashew shell oil modified amine epoxy crosslinking agent and ketone imide crosslinking agent of organic combination, with the advantage of the two, both the cashew shell oil modified amine epoxy crosslinking agent of excellent chemical corrosion prevention and rapid crosslinking performance, also had the ketone imide kind of crosslinking agent in wet area the advantage of crosslinking.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packingļ¼ net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
When coating contains a small amount of silane coupling solvent, after its coating, silane and migrate to the coating and substrate interface, and the moisture on the surface of inorganic reaction, hydrolysis produce silanol base, and with the substrate surface hydroxyl hydrogen bond or condensation into - Si - M (M) for inorganic surface, and silane molecules and silanol condensation, gathered in each other between form reticular structure of the film covering on the surface of the substrate.
Even under water leaching condition, the coating of silane coupling agent is attached to various inorganic substrate. Within the boundary layer between the have and the substrate, the interaction between silane and have been, the reticular structure of silane and have mutual penetration, enhance the cohesion and the stability of water erosion resistance, and stress so as to make a high modulus of substrate have been transferred to the low modulus, significantly improve the adhesion to substrate.
The effect of adding silane coupling agent on the adhesion of the product was tested by experiment, and the test method was as follows: the experiment of concrete was applied to the bottom material. Selection has treated 500 mm x 500 mm x 50 mm of concrete specimen, surface treatment after soaking in clean water after 24 h bails out, wipe with wet cloth in addition to the coating surface water droplets, standard under the condition of natural park 20 min; Then the first coating, after the coating, the 3 h in the air, the immersion in the 3% NaCl solution, after 12 h, the standard condition is to park 9 h; Once again, finish the entire coating and complete the corresponding test, maintain 7 d and complete the corresponding test.
The results of the experiment showed that the adhesion was improved by adding silane coupling agent, and the effect of improving corrosion resistance was achieved.
Wet cross-linked epoxy coatings are fast dry, can continue to underwater crosslinking, excellent abrasion resistance, resistant to salt water resistance, such as performance, to ensure the smooth coating, and ensure the coating can achieve the best protection effect.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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