News Details
Phenol coating crosslinking agent
2017-5-5 10:58:59
Phenol coating crosslinking agent,In effect, it refers primarily to the use of A closed epoxy resin called Phenolic hydroxyl oxide. Preparation is done through the so-called Advanced process, which is the same as the two-step or rediffusion chain of epoxy.
Because the resin contains the faint acid phenols, the active H and epoxy resins can be supplied by the activation of a small amount of the catalyst. Plus it and epoxy resin has almost the same chemical structure, has good compatibility with each other, and dissolve performance, won't produce after crosslinking structure damage caused by the different shrinkage rate, so as to retain the can give all the performance of epoxy resin, such as excellent adhesion, coating, chemical resistance and solvent resistance, therefore is a kind of performance is very excellent epoxy crosslinking agent.
Now it has become a variety of functional anticorrosive coating such as oil pipeline, building steel, large packaging container, coil and other metal accessories in the field of choice.
The phenolic crosslinking agent designed generally has the following performance parameters: OH equivalent range 235-235, softening point 265-90 ℃, and the average molecular weight Mn st13 of 90. Due to the reaction of epoxy resins, the catalyst is needed to induce and facilitate the use of the catalyst, and the appropriate amount of 2-methyl-imidazole and the fluxifier are usually added in the manufacturing process.
In order to further improve the coating's heat resistance and corrosion resistance, the use of phenolic epoxy resin is usually used. According to the equivalence of resins/crosslinking agents, the ratio of the two is 25 to 38 portions / 100 phenolic epoxy. Because of the imidazole stimulant, the epoxy needed to be made is 5-10% more to achieve the optimal application performance.
Phenol, known as ArOH, is an aromatic compound that is replaced by hydroxyl (OH). The simplest phenol is phenol. Phenolic compounds refers to on the benzene ring in the aromatic hydrocarbon generated by hydrogen atom replaced by hydroxyl compounds, according to its molecules contain hydroxyl number can be divided into one yuan of phenol and polyphenol.
Phenolic compounds are hydroxyderivatives of aromatic hydrocarbons, which are volatile and volatile phenols. Most of the phenolic compounds found in nature are the result of plant life activities, and the phenol contained in plants is called endogenous phenol, and the rest is called exogenous phenols. Phenolic compounds have special aromatic odors, both weak and acidic, and are easily oxidized in the environment. Phenol is the greatest toxicity of phenol compounds, and the highest levels of phenol and cresol are commonly found in phenol.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packing： 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).
Hydroxy directly and aromatic nucleus (benzene or thick benzene) sp2 hybridization of carbon atoms linked molecules called polyphenols, this structure has similarities with fat enol, nothing will happen tautomerism, called interconvert phenol type structure. However, the structure of phenol is relatively stable, because it can satisfy the structure of a direction ring, so the phenol is the main form in the interchanging isostatic equilibrium.
Phenol, cresol, aminophenol, nitrophenol, naphthol and chlorophenol, etc., are most prominent in phenol and cresol.
Phenol, also known as phenol, is also known as carboxylic acid, which is acidic and can be volatilize under normal temperature, which gives off a special pungent odour, which is pink in the air. The commonly used water disinfectant in hospitals is a dilute solution of sodium phenol.
Cresphenol, also known as carbolic acid, is similar to the chemical activity and toxicity of phenol and is often present at the same time.
Phenols are divided into monophenols and polyphenols according to the number of hydroxyl groups directly connected by their aromatic rings. It can be divided into volatile phenol and non-volatile phenol. One yuan more volatile phenol (boiling point within 230 ℃). Is the most simple of phenol phenol, which is a kind of special odor colorless solid, discovered the earliest derived from coal tar, so it is also commonly known as carbolic acid (because of its acid).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Because the resin contains the faint acid phenols, the active H and epoxy resins can be supplied by the activation of a small amount of the catalyst. Plus it and epoxy resin has almost the same chemical structure, has good compatibility with each other, and dissolve performance, won't produce after crosslinking structure damage caused by the different shrinkage rate, so as to retain the can give all the performance of epoxy resin, such as excellent adhesion, coating, chemical resistance and solvent resistance, therefore is a kind of performance is very excellent epoxy crosslinking agent.
Now it has become a variety of functional anticorrosive coating such as oil pipeline, building steel, large packaging container, coil and other metal accessories in the field of choice.
The phenolic crosslinking agent designed generally has the following performance parameters: OH equivalent range 235-235, softening point 265-90 ℃, and the average molecular weight Mn st13 of 90. Due to the reaction of epoxy resins, the catalyst is needed to induce and facilitate the use of the catalyst, and the appropriate amount of 2-methyl-imidazole and the fluxifier are usually added in the manufacturing process.
In order to further improve the coating's heat resistance and corrosion resistance, the use of phenolic epoxy resin is usually used. According to the equivalence of resins/crosslinking agents, the ratio of the two is 25 to 38 portions / 100 phenolic epoxy. Because of the imidazole stimulant, the epoxy needed to be made is 5-10% more to achieve the optimal application performance.
Phenol, known as ArOH, is an aromatic compound that is replaced by hydroxyl (OH). The simplest phenol is phenol. Phenolic compounds refers to on the benzene ring in the aromatic hydrocarbon generated by hydrogen atom replaced by hydroxyl compounds, according to its molecules contain hydroxyl number can be divided into one yuan of phenol and polyphenol.
Phenolic compounds are hydroxyderivatives of aromatic hydrocarbons, which are volatile and volatile phenols. Most of the phenolic compounds found in nature are the result of plant life activities, and the phenol contained in plants is called endogenous phenol, and the rest is called exogenous phenols. Phenolic compounds have special aromatic odors, both weak and acidic, and are easily oxidized in the environment. Phenol is the greatest toxicity of phenol compounds, and the highest levels of phenol and cresol are commonly found in phenol.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packing： 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).
Hydroxy directly and aromatic nucleus (benzene or thick benzene) sp2 hybridization of carbon atoms linked molecules called polyphenols, this structure has similarities with fat enol, nothing will happen tautomerism, called interconvert phenol type structure. However, the structure of phenol is relatively stable, because it can satisfy the structure of a direction ring, so the phenol is the main form in the interchanging isostatic equilibrium.
Phenol, cresol, aminophenol, nitrophenol, naphthol and chlorophenol, etc., are most prominent in phenol and cresol.
Phenol, also known as phenol, is also known as carboxylic acid, which is acidic and can be volatilize under normal temperature, which gives off a special pungent odour, which is pink in the air. The commonly used water disinfectant in hospitals is a dilute solution of sodium phenol.
Cresphenol, also known as carbolic acid, is similar to the chemical activity and toxicity of phenol and is often present at the same time.
Phenols are divided into monophenols and polyphenols according to the number of hydroxyl groups directly connected by their aromatic rings. It can be divided into volatile phenol and non-volatile phenol. One yuan more volatile phenol (boiling point within 230 ℃). Is the most simple of phenol phenol, which is a kind of special odor colorless solid, discovered the earliest derived from coal tar, so it is also commonly known as carbolic acid (because of its acid).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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