News Details
Coating crosslinking agent diluent
2017-4-7 10:51:33
Coating crosslinking agent diluent, butyl acetate as a crosslinking agent dilution agent requires low moisture content, butyl acetate storage too long and improper or are in the process of transportation may result in water content increased; Butanone also sensitive to moisture, canned coating of water demand is high, water cut of excessive amounts of butanone can lead to some canned paint "color".
Some active shelf life such as diacetone alcohol solvent, in principle, the shelf life should not be used again, because the internal active group has changed.
N-butyl acetate is often used with aromatic solvent, because it has lower viscosity, especially suitable for coatings, high solid content it is also the most widely used in polyurethane coating solvents; Ketone solvents chemical stability is good, because of the existence of carbonyl ketone solvents for hydrogen bonding receptors, have excellent solvency.
For example, the most commonly used butanone: relatively volatile rate slightly lower than that of acetone, wood coatings, nitro and pu), acrylic resin coating and coating of vinyl resin commonly used solvents. Due to the volatilization rate too fast, acetone and butanone rarely used in ship coatings and heavy-duty coating. Can choose diacetone alcohol as the main active solvent on the basis of fully dissolve resin to make film with good flow property.
In the manufacture of oil paint, in addition to the active solvent and mixed with some solvents appropriately. Fill the solvent features:
Most non-polar paraffin and aromatics solvents (weak hydrogen bonds). Mainly alkane solvent, such as aromatic saturation D - series, 120 # solvent oil and 200 # solvent oil, etc.; And aromatic hydrocarbon solvent, such as toluene, xylene, mixed aromatics S - 100, S - 150 and S - 200, etc. Paraffin solvents with a number of active mixed poor solubility.
Polymer generally insoluble in filling solvents, solvent filling is mainly used to reduce the cost, regulating oil paint viscosity is convenient for construction. Such as Marine coatings and heavy-duty coating of xylene solvent and mixed aromatics S - 100 as fill with n-butyl alcohol miscibility fully and effectively reduce the cost.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
Toluene and xylene, of course, is still filled with solvent main, supplemented by BTX aromatics S - 100 and S - 150 adjust viscosity and volatile speed; In polyester resin as base material of coil coating, the dissolve with good comprehensive performance of ethylene glycol butyl ether has been with background active solvent, due to reasons such as toxicity, is now parts are replaced with diacetone alcohol, etc, this kind of coating generally use mixed aromatics of S - 100 and S - 150 as solvent filling.
As filled with solvent, we cannot ignore the fat hydrocarbon solvents, it represents the solvent for 200 # solvent oil, they basically as the chemical inertness, they are used in alkyd resin coatings can be effectively fill cost reduction, also of alkyd resin have dissolved. 200 # solvent oil is widely used in alkyd resin as base material of wood coatings. In order to make the product oil paint with lighter scent, some manufacturers adopt the mode of hydrogenation to remove part of unsaturated hydrocarbon.
For a specific application requirements, different coating must possess different performance, such as automotive coatings, wood coatings, etc. Result in different oil using different polymer coating system (resin). Such as alkyd resin, acrylic resin, polyester resin, epoxy resin and polyurethane resin, etc.
Even the alkyd resin can be divided into the coconut oil, linseed oil modification and styrene modified and so on. Newly developed special resin, often with more than one trait, such as polyurethane modified acrylic resin, etc.; More and more factory to seek the best balance of performance, with different resin in the formulation to match the performance of the use way of the development of new coatings. 1-2 kind of main active solvent alone cannot effectively dissolve resin in the formulation. This is also should be the main cause of many solvent coatings manufacturing.
Such as Marine coatings and heavy-duty coating will adopt some propanediol methyl ether and isopropyl alcohol as a cosolvent; In the nitro wood coatings, propylene glycol methyl ether acetate esters, ketones (ethyl ketone, methyl isobutyl ketone) and some alcohol (is, isobutyl alcohol, isopropyl alcohol) was more as a cosolvent in nitrocellulose coatings, we often add alcohol as a cosolvent or latent solvent: alcohol can't separate dissolved nitrogen content is 11.7% - 12.2% of nitrocellulose, but they have the potential ability to dissolve.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Some active shelf life such as diacetone alcohol solvent, in principle, the shelf life should not be used again, because the internal active group has changed.
N-butyl acetate is often used with aromatic solvent, because it has lower viscosity, especially suitable for coatings, high solid content it is also the most widely used in polyurethane coating solvents; Ketone solvents chemical stability is good, because of the existence of carbonyl ketone solvents for hydrogen bonding receptors, have excellent solvency.
For example, the most commonly used butanone: relatively volatile rate slightly lower than that of acetone, wood coatings, nitro and pu), acrylic resin coating and coating of vinyl resin commonly used solvents. Due to the volatilization rate too fast, acetone and butanone rarely used in ship coatings and heavy-duty coating. Can choose diacetone alcohol as the main active solvent on the basis of fully dissolve resin to make film with good flow property.
In the manufacture of oil paint, in addition to the active solvent and mixed with some solvents appropriately. Fill the solvent features:
Most non-polar paraffin and aromatics solvents (weak hydrogen bonds). Mainly alkane solvent, such as aromatic saturation D - series, 120 # solvent oil and 200 # solvent oil, etc.; And aromatic hydrocarbon solvent, such as toluene, xylene, mixed aromatics S - 100, S - 150 and S - 200, etc. Paraffin solvents with a number of active mixed poor solubility.
Polymer generally insoluble in filling solvents, solvent filling is mainly used to reduce the cost, regulating oil paint viscosity is convenient for construction. Such as Marine coatings and heavy-duty coating of xylene solvent and mixed aromatics S - 100 as fill with n-butyl alcohol miscibility fully and effectively reduce the cost.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
Toluene and xylene, of course, is still filled with solvent main, supplemented by BTX aromatics S - 100 and S - 150 adjust viscosity and volatile speed; In polyester resin as base material of coil coating, the dissolve with good comprehensive performance of ethylene glycol butyl ether has been with background active solvent, due to reasons such as toxicity, is now parts are replaced with diacetone alcohol, etc, this kind of coating generally use mixed aromatics of S - 100 and S - 150 as solvent filling.
As filled with solvent, we cannot ignore the fat hydrocarbon solvents, it represents the solvent for 200 # solvent oil, they basically as the chemical inertness, they are used in alkyd resin coatings can be effectively fill cost reduction, also of alkyd resin have dissolved. 200 # solvent oil is widely used in alkyd resin as base material of wood coatings. In order to make the product oil paint with lighter scent, some manufacturers adopt the mode of hydrogenation to remove part of unsaturated hydrocarbon.
For a specific application requirements, different coating must possess different performance, such as automotive coatings, wood coatings, etc. Result in different oil using different polymer coating system (resin). Such as alkyd resin, acrylic resin, polyester resin, epoxy resin and polyurethane resin, etc.
Even the alkyd resin can be divided into the coconut oil, linseed oil modification and styrene modified and so on. Newly developed special resin, often with more than one trait, such as polyurethane modified acrylic resin, etc.; More and more factory to seek the best balance of performance, with different resin in the formulation to match the performance of the use way of the development of new coatings. 1-2 kind of main active solvent alone cannot effectively dissolve resin in the formulation. This is also should be the main cause of many solvent coatings manufacturing.
Such as Marine coatings and heavy-duty coating will adopt some propanediol methyl ether and isopropyl alcohol as a cosolvent; In the nitro wood coatings, propylene glycol methyl ether acetate esters, ketones (ethyl ketone, methyl isobutyl ketone) and some alcohol (is, isobutyl alcohol, isopropyl alcohol) was more as a cosolvent in nitrocellulose coatings, we often add alcohol as a cosolvent or latent solvent: alcohol can't separate dissolved nitrogen content is 11.7% - 12.2% of nitrocellulose, but they have the potential ability to dissolve.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian