News Details
Chain polyamide coatings crosslinking agent
2017-8-16 11:42:20
Chain polyamide coatings crosslinking agent
The reaction of epichlorohydrin and amine. Between benzene dimethylamine (MxPA) and epoxy chloropropane (ECH) reaction, chain polyamine after removing HCl, chain polyamine class crosslinking agent has good drug resistance, adhesion, corrosion resistance, amine flash sex resin crosslinking high flexibility. The adhesive stripping strength is high.
The wr-112 chain polyamine crosslinking agent has similar structure. This chain polyamide crosslinking agent can be underwater, with water, with rust crosslinking, mainly used as anticorrosive coating. The coated film has good flexibility, impact strength, solvent resistance and corrosion resistance.
The basic and weak problem of amines is the most basic property of the organic matter, and the different order of strong and weak is produced under different environmental conditions. The factors that affect its alkalinity are also different. In the gas phase, the influence factors are mainly electron effect; In aqueous solution, it is not only affected by electron effect, but also influenced by space effect and solvation. As long as we can grasp the environmental conditions and combine the three factors that affect its alkalinity, we can give correct and reasonable judgment.
The current research and application results show that the performance of coatings is very important. Polyurethane resin has excellent properties of high and low tenderness, abrasion resistance and wind erosion, but it is inferior to fluororesin and silicone resin in weathering and anti-icing performance. Acrylic resin has excellent weatherability, corrosion resistance and adhesion properties, but it is not ideal for water resistance, flexibility, impact resistance and abrasion resistance.
The reason for oil painting: after coating, the surface tension of paint is not uniform.
The main reason for the contamination is the paint. The contaminated channels are:
A. Spray system, the compressed air of supply contains oil - check the air compressor under the sea valve, remove the oil and water produced, check the effect of oil and water separator;
B. The container can be contaminated with oil and grease by oil and grease. Clean the container with the paint, before the paint, clean with the water first.
C. operators on oil pollution, especially in the winter hand use the oily skin, easy cause when grinding, with paint paint pollution - the operator to confirm don't have grease, washed with soap or first day the best water hands;
Chinese name: Diethyl toluene diamine(DETDA)
The reaction of epichlorohydrin and amine. Between benzene dimethylamine (MxPA) and epoxy chloropropane (ECH) reaction, chain polyamine after removing HCl, chain polyamine class crosslinking agent has good drug resistance, adhesion, corrosion resistance, amine flash sex resin crosslinking high flexibility. The adhesive stripping strength is high.
The wr-112 chain polyamine crosslinking agent has similar structure. This chain polyamide crosslinking agent can be underwater, with water, with rust crosslinking, mainly used as anticorrosive coating. The coated film has good flexibility, impact strength, solvent resistance and corrosion resistance.
The basic and weak problem of amines is the most basic property of the organic matter, and the different order of strong and weak is produced under different environmental conditions. The factors that affect its alkalinity are also different. In the gas phase, the influence factors are mainly electron effect; In aqueous solution, it is not only affected by electron effect, but also influenced by space effect and solvation. As long as we can grasp the environmental conditions and combine the three factors that affect its alkalinity, we can give correct and reasonable judgment.
The current research and application results show that the performance of coatings is very important. Polyurethane resin has excellent properties of high and low tenderness, abrasion resistance and wind erosion, but it is inferior to fluororesin and silicone resin in weathering and anti-icing performance. Acrylic resin has excellent weatherability, corrosion resistance and adhesion properties, but it is not ideal for water resistance, flexibility, impact resistance and abrasion resistance.
The reason for oil painting: after coating, the surface tension of paint is not uniform.
The main reason for the contamination is the paint. The contaminated channels are:
A. Spray system, the compressed air of supply contains oil - check the air compressor under the sea valve, remove the oil and water produced, check the effect of oil and water separator;
B. The container can be contaminated with oil and grease by oil and grease. Clean the container with the paint, before the paint, clean with the water first.
C. operators on oil pollution, especially in the winter hand use the oily skin, easy cause when grinding, with paint paint pollution - the operator to confirm don't have grease, washed with soap or first day the best water hands;
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).
D. The pollution of the bottom material, including dusting, oil pollution, and long storage time after sanding -- make sure that the substrate is free of pollution, and if the previous grinding interval is too long, it will be polished again.
E. bottom coating pollution, including primer, coating by using additives in too much (e.g., flow ping agent), and additives to film the upper end of migration, the insufficient of light quality, polished, individual place be call again - grinding leakage, confirm the polish thoroughly.
Effects of electric field and magnetic field;
Because the paint is the poor conductor of electricity, in the process of mixing and spraying, because the friction can produce a lot of static electricity, when a stronger external magnetic field exists, it can cause serious oil. For example, the presence of electric welding machine, dc generator, and magnetic field of a magnetic field can be applied in the vicinity.
The operator has strong static electricity, as mentioned, the paint surface often accumulates a lot of static electricity, when the operator has enough static electricity, it will lead to the oil. This often happens in winter and the rainy season;
In the process of paint production, the auxiliary agent is not mixed, resulting in excessive local auxiliaries.
The quality of the resin itself is poor, such as the distribution of molecular weight. Once sprayed too thick, or thick and inconsistent
Once the coating is too thin; The thinner is added to excess and the viscosity is too low
Therefore, it is determined that polyamide wax is used as the thixotropic agent of the solvent-free epoxy refill coating to ensure that the construction can reach 1000 mu m at a high temperature.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
D. The pollution of the bottom material, including dusting, oil pollution, and long storage time after sanding -- make sure that the substrate is free of pollution, and if the previous grinding interval is too long, it will be polished again.
E. bottom coating pollution, including primer, coating by using additives in too much (e.g., flow ping agent), and additives to film the upper end of migration, the insufficient of light quality, polished, individual place be call again - grinding leakage, confirm the polish thoroughly.
Effects of electric field and magnetic field;
Because the paint is the poor conductor of electricity, in the process of mixing and spraying, because the friction can produce a lot of static electricity, when a stronger external magnetic field exists, it can cause serious oil. For example, the presence of electric welding machine, dc generator, and magnetic field of a magnetic field can be applied in the vicinity.
The operator has strong static electricity, as mentioned, the paint surface often accumulates a lot of static electricity, when the operator has enough static electricity, it will lead to the oil. This often happens in winter and the rainy season;
In the process of paint production, the auxiliary agent is not mixed, resulting in excessive local auxiliaries.
The quality of the resin itself is poor, such as the distribution of molecular weight. Once sprayed too thick, or thick and inconsistent
Once the coating is too thin; The thinner is added to excess and the viscosity is too low
Therefore, it is determined that polyamide wax is used as the thixotropic agent of the solvent-free epoxy refill coating to ensure that the construction can reach 1000 mu m at a high temperature.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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