News Details
Pt910/912 mixed paint crosslinking agent
2017-8-27 15:28:03
Pt910/912 mixed paint crosslinking agent
As early as 1992, a number of major powder producers had been concerned about the hazards of TGIC and decided to abandon the use of TGIC in the near future.Pt910/912 mixed crosslinking agent is a mixture of polyacid glycolide and di-acid glycolide in the development of Huntsman.PT910 is actually a 1:3 weight mixture.
Compared with TGIC, pt910/912 mixed crosslinking agent eliminates its ecological toxicity, but pt910/912 mixed crosslinking agent still has certain contact toxicity and severe irritation.Due to the decrease of the functional degree, the reaction activity is lower than that of TGIC, which needs to be added in the formulation design.
Because PT910 has a lower level of functionality than TGIC, mechanical properties are more sensitive to cross-linking time and the type of resin used.Add accelerators (or catalysts) or use more reactive polyester to compensate for the lower levels of the PT910 response.
A polyester resin with high glass transition temperature and good storage stability can be synthesized by using common raw materials.The coating that USES PT910 as crosslinking agent can be compared with TGlC powder for outdoor durability.Even with the extreme measures of PT910, the powder coating can be difficult to eliminate, and it seems to be only in the way of dry mixing, so it is further restricted.
The acid can be divided into element acid and polyacid.A cell acid contains only one carboxyl (rosin or benzoic acid), and the polyacid contains more than two carboxyl acids (such as diacid and sebacic acid), so it is called polyacid.
Polyacid usually refers to acids that can ionize in aqueous solution and produce three or more hydrogenated H3O +.Such as H3PO4 phosphate.In organic chemistry, there are three or more carboxylic acids, such as C6H2 (COOH) 4, which contain three or more carboxyl groups.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
As early as 1992, a number of major powder producers had been concerned about the hazards of TGIC and decided to abandon the use of TGIC in the near future.Pt910/912 mixed crosslinking agent is a mixture of polyacid glycolide and di-acid glycolide in the development of Huntsman.PT910 is actually a 1:3 weight mixture.
Compared with TGIC, pt910/912 mixed crosslinking agent eliminates its ecological toxicity, but pt910/912 mixed crosslinking agent still has certain contact toxicity and severe irritation.Due to the decrease of the functional degree, the reaction activity is lower than that of TGIC, which needs to be added in the formulation design.
Because PT910 has a lower level of functionality than TGIC, mechanical properties are more sensitive to cross-linking time and the type of resin used.Add accelerators (or catalysts) or use more reactive polyester to compensate for the lower levels of the PT910 response.
A polyester resin with high glass transition temperature and good storage stability can be synthesized by using common raw materials.The coating that USES PT910 as crosslinking agent can be compared with TGlC powder for outdoor durability.Even with the extreme measures of PT910, the powder coating can be difficult to eliminate, and it seems to be only in the way of dry mixing, so it is further restricted.
The acid can be divided into element acid and polyacid.A cell acid contains only one carboxyl (rosin or benzoic acid), and the polyacid contains more than two carboxyl acids (such as diacid and sebacic acid), so it is called polyacid.
Polyacid usually refers to acids that can ionize in aqueous solution and produce three or more hydrogenated H3O +.Such as H3PO4 phosphate.In organic chemistry, there are three or more carboxylic acids, such as C6H2 (COOH) 4, which contain three or more carboxyl groups.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
According to the theory of acid and alkali proton, the number of protons (H +) that can be given in acid can be divided into monoacid (such as HCl, NH4 +), diyuan (such as H2C2O4, H2SO4) and ternary acid [such as H3PO4, Fe (H2O) 63 +] etc.Non - monic acid is referred to as polyacid.The ionization of multiple weak acids in the water is performed in a step-by-step manner. For example, H3PO4 is disassociated with three steps, and each step has corresponding ionization equilibrium constant.Generally speaking, the first step of the multivariate weak acid is far greater than the second and third step. When considering the acidity of the multivariate weak acid solution, the equilibrium calculation can be calculated according to the first step.
Glyceryl ester is usually referred to as ester of glycerol and fatty acids (including saturated and unsaturated fatty acids) by esterification.
According to the number of molecules used fatty acid molecules can be divided into a (fat) acid glycerol ester C3H5 (OH) 2 (OCOR), glycerin (fat) acid ester C3H5 (OCOR) (OH) 2 and triglyceride (fat) acid ester C3H5 (OCOR). 3.Fatty acids (commonly known as advanced fatty acids) are the main components of natural oils.The heaviest is triglycerides (triglycerides), triglycerides (olefine), triglycerides (soft lipids) and triglycerides (stearin).
Glyceryl ester is a neutral substance.Insoluble in water.Dissolved in organic solvents.Hydrolysis happens.For example, the oil is hydrolyzed by caustic soda (saponification) and produces the sodium salt (sodium soap, which is plain soap) and glycerin, which is high in carbon.
No matter which kind of powder coating is made up of base material (resin, crosslinking agent), pigment, auxiliaries, filling material 4 parts.
Powder coating is formula to determine, and after construction on the workpiece, the coating is endowed with certain physical and chemical properties, these properties in the external natural environment, what happens after a period of time, how long does it take to coating eventually lose effectiveness, the most destructive of what factors on the coating, and so on, these are all we are studying.
Because powder coating has obvious environmental protection and energy saving advantages, in many industrial fields has gradually take the place of paint, such as home appliances almost 100% with powder coating to coating shell, used in home appliances powder accounted for about a quarter of the whole powder production.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
According to the theory of acid and alkali proton, the number of protons (H +) that can be given in acid can be divided into monoacid (such as HCl, NH4 +), diyuan (such as H2C2O4, H2SO4) and ternary acid [such as H3PO4, Fe (H2O) 63 +] etc.Non - monic acid is referred to as polyacid.The ionization of multiple weak acids in the water is performed in a step-by-step manner. For example, H3PO4 is disassociated with three steps, and each step has corresponding ionization equilibrium constant.Generally speaking, the first step of the multivariate weak acid is far greater than the second and third step. When considering the acidity of the multivariate weak acid solution, the equilibrium calculation can be calculated according to the first step.
Glyceryl ester is usually referred to as ester of glycerol and fatty acids (including saturated and unsaturated fatty acids) by esterification.
According to the number of molecules used fatty acid molecules can be divided into a (fat) acid glycerol ester C3H5 (OH) 2 (OCOR), glycerin (fat) acid ester C3H5 (OCOR) (OH) 2 and triglyceride (fat) acid ester C3H5 (OCOR). 3.Fatty acids (commonly known as advanced fatty acids) are the main components of natural oils.The heaviest is triglycerides (triglycerides), triglycerides (olefine), triglycerides (soft lipids) and triglycerides (stearin).
Glyceryl ester is a neutral substance.Insoluble in water.Dissolved in organic solvents.Hydrolysis happens.For example, the oil is hydrolyzed by caustic soda (saponification) and produces the sodium salt (sodium soap, which is plain soap) and glycerin, which is high in carbon.
No matter which kind of powder coating is made up of base material (resin, crosslinking agent), pigment, auxiliaries, filling material 4 parts.
Powder coating is formula to determine, and after construction on the workpiece, the coating is endowed with certain physical and chemical properties, these properties in the external natural environment, what happens after a period of time, how long does it take to coating eventually lose effectiveness, the most destructive of what factors on the coating, and so on, these are all we are studying.
Because powder coating has obvious environmental protection and energy saving advantages, in many industrial fields has gradually take the place of paint, such as home appliances almost 100% with powder coating to coating shell, used in home appliances powder accounted for about a quarter of the whole powder production.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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