News Details
Used crosslinking agent for water based wood paint
2017-6-12 19:51:33
Used crosslinking agent for water based wood paint
EEP has the very good help into membranous, volatile soon (relatively volatile speed and linear structure), emulsion swelling effect significantly (system viscosity increased significantly, hydrophilic film forming additives are usually not have this kind of phenomenon), and the hydrophobic EEP make it possible for selecting HUER as rheological additives, the reason for the next two sections.
EEP has the very good help into membranous, volatile soon (relatively volatile speed and linear structure), emulsion swelling effect significantly (system viscosity increased significantly, hydrophilic film forming additives are usually not have this kind of phenomenon), and the hydrophobic EEP make it possible for selecting HUER as rheological additives, the reason for the next two sections.
Similar to EEP, n-pentyl Propionate may have a similar effect, and dipropylene glycol dimethyl ether also needs to be noted specifically. In the literature reviewed, it is mentioned that the product has a good membrane effect, and it also has a rapid rate of volatility.
According to its characteristics, EEP's rapid volatilization comes from two main sources:
First, relatively volatile;
Second, it is estimated that there is a certain solubility (35%) in water that can make it evaporate with water at the beginning.
The water is soluble in solubility (4.5%), which can make it evaporate in the form of a concentrated solution. So together, volatile speed quickly, and without the concerns of the hydrolysis, ask for samples, but according to the present the film-forming additives can be quite expensive.
Such basic PM confirm choice, EEP/n - pentyl, Propionate/dipropylene glycol dimethyl ether, BCS, DEE, DEB to combine film-forming agent, but it has some concerns, need further tests to verify and solve.
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
There are two main sources of concern:
The hydrolysis of esters.
The stability of viscosity in the stored procedure.
Lipid hydrolysis: as with all ester solvents, EEP has a tendency to hydrolyze, and some water-based patents have also mentioned EEP. More importantly, you may have noticed that in the 2KPU system, the reactivity of the hydroxyl and NCO, which is used in the 2KPU system to avoid the mellow solvents, is widely used.
Also noticed that some articles said if the system keep PH in alkalescent condition, ester hydrolysis solvent is acceptable, and waterborne wood lacquer PH usually keep in 7.5-8. , of course, in the process of using EEP hydrolysis and its effect on film, the influence of system stability, the need according to the body of the chosen material and system test further evaluation, to determine the applicability of the formula.
Viscosity in the process of storage stability: hydrophilic and hydrophobic solvent type of association the association effect of rheological additives have important influence, in the system of the two kinds of film forming additives are abundant, how to influence the system viscosity in the process of storage, need further evaluation.
Solvent to EEP class also has many concerns, but from the point of its advantages, there are a lot of application opportunities, whether it is given priority to with the dry toy paint, industrial paint or meet baking conditions. This type of film forming additives will greatly improve the waterborne wood paint drying problem, make coating system meet the solvent-based coating hard dry conditions possible.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
EEP has the very good help into membranous, volatile soon (relatively volatile speed and linear structure), emulsion swelling effect significantly (system viscosity increased significantly, hydrophilic film forming additives are usually not have this kind of phenomenon), and the hydrophobic EEP make it possible for selecting HUER as rheological additives, the reason for the next two sections.
EEP has the very good help into membranous, volatile soon (relatively volatile speed and linear structure), emulsion swelling effect significantly (system viscosity increased significantly, hydrophilic film forming additives are usually not have this kind of phenomenon), and the hydrophobic EEP make it possible for selecting HUER as rheological additives, the reason for the next two sections.
Similar to EEP, n-pentyl Propionate may have a similar effect, and dipropylene glycol dimethyl ether also needs to be noted specifically. In the literature reviewed, it is mentioned that the product has a good membrane effect, and it also has a rapid rate of volatility.
According to its characteristics, EEP's rapid volatilization comes from two main sources:
First, relatively volatile;
Second, it is estimated that there is a certain solubility (35%) in water that can make it evaporate with water at the beginning.
The water is soluble in solubility (4.5%), which can make it evaporate in the form of a concentrated solution. So together, volatile speed quickly, and without the concerns of the hydrolysis, ask for samples, but according to the present the film-forming additives can be quite expensive.
Such basic PM confirm choice, EEP/n - pentyl, Propionate/dipropylene glycol dimethyl ether, BCS, DEE, DEB to combine film-forming agent, but it has some concerns, need further tests to verify and solve.
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
There are two main sources of concern:
The hydrolysis of esters.
The stability of viscosity in the stored procedure.
Lipid hydrolysis: as with all ester solvents, EEP has a tendency to hydrolyze, and some water-based patents have also mentioned EEP. More importantly, you may have noticed that in the 2KPU system, the reactivity of the hydroxyl and NCO, which is used in the 2KPU system to avoid the mellow solvents, is widely used.
Also noticed that some articles said if the system keep PH in alkalescent condition, ester hydrolysis solvent is acceptable, and waterborne wood lacquer PH usually keep in 7.5-8. , of course, in the process of using EEP hydrolysis and its effect on film, the influence of system stability, the need according to the body of the chosen material and system test further evaluation, to determine the applicability of the formula.
Viscosity in the process of storage stability: hydrophilic and hydrophobic solvent type of association the association effect of rheological additives have important influence, in the system of the two kinds of film forming additives are abundant, how to influence the system viscosity in the process of storage, need further evaluation.
Solvent to EEP class also has many concerns, but from the point of its advantages, there are a lot of application opportunities, whether it is given priority to with the dry toy paint, industrial paint or meet baking conditions. This type of film forming additives will greatly improve the waterborne wood paint drying problem, make coating system meet the solvent-based coating hard dry conditions possible.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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