News Details
The effect of crosslinking agent on coating
2017-5-11 17:54:44
The effect of crosslinking agent on coating. With the increase of DAAM, the crosslinking degree is increased, the absorption rate of the film is decreasing gradually, but the trend is increased after it reaches a certain value. This is because the DAAM water-soluble monomer and its dosage is too large when there will be some monomer in the water phase occurred since together, affect the polymerization stability, micellar structure affected, film instead of reducing water resistance.
The effect of DAAM dosage on the binding degree of the binder and the water absorption rate. With the increase of DAAM, the amount of the emulsion is decreasing and the coagulation increases, which indicates that the latex particles are increasing, and the corresponding storage stability is poor.
Moreover, the more stable the polymerization process, the better the transparency and luster of the polymer film. Therefore, in order to ensure the stability of the aggregation, the DAAM addition should be less than 3% of the total mass. In addition, the effect of DAAM on the appearance of emulsion and the distribution of particle size is also obvious.
The effect of DAAM on the size of the emulsion. The average particle size of the emulsion increases with the increase of DAAM, and the amount of the DAAM is 3% or higher, and the size of the particle is larger and wider. This is due to the increased use of DAAM, which increases the amount of dissolved water in the water and increases the risk of water forming in the process.
Since water each other nuclear consumes part of primary radicals, reduces the micellar nucleation rate, nucleation caused prolonged, formed on the number of latex particles decreases, particle size increases. When less than 3%, the surface of the emulsion is smooth, the particle size is fine, and the particle size is narrow, within the range of suitable size. The effects of DAAM on the application performance of fabric printing were further discussed.
The effect of DAAM usage on the application of fabric printing. With the increase of DAAM usage, the feeling of the printed fabric is hardened by soft, gradually increasing elasticity, but it declines after more than 2%. The wet friction performance was excellent with the dosage, and the dry friction performance changed little.
Reason is: when the dosage of DAAM partial hours, enough effective crosslinking polymer system, film bibulous rate is high, the wet friction performance deviation, deviation and the flexibility of the film and toughness, the elasticity of fabric printing would also be affected. However, when DAAM is overused, it produces excessive cross-linking, which can cause the film to be brittle and the fabric prints are hard and can easily crack. The effect of the combination of printed feeling and dry, wet friction, the experiment determined that the amount of DAAM was 1.5%.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
The effect of ADH and DAAM on film performance. The effects of different ADH and DAAM on emulsion performance were investigated.
M (ADH) : m (DAAM) < 1%, the membrane performance of the emulsion is better, as m (ADH) : m (DAAM) increases, the crosslinking degree of the membrane increases, and the absorption rate decreases. But when m (ADH) : m (DAAM) is increased to 2, the membrane performance deteriorates, the emulsion membrane becomes white and crisp, and the suction rate of the film increases. The reason is that with the increase of ADH, the increase of interconnection points in the system caused the membrane crosslinking to increase, reducing the water absorption rate.
In addition, when the amount of ADH exceeds a certain value, the excess of ADH and crosslinked polymer, after waiting for evaporation from the precipitation in the system, affect transparency film and bibulous rate, thus affect the overall performance of the film. Overall consideration, when m (ADH) : m (DAAM) = 0.8 ~ 1, the emulsion performs better.
The effect of DAAM on the performance of the film and print products. Studies with hydroxylamine hydrochloride (NH2OH · HCl) ketone carbonyl content and find general emulsion copolymerization of ketone carbonyl content was only 60% ~ 80% of the theory, which is exposed on the surface can attend hydrazide reaction was only 60% ~ 80% of the theory.
So imagine when synthetic latex DAAM different ways of adding affect ketone carbonyl in the distribution of the latex particle surface, and thus influence ketone carbonyl and hydrazide late crosslinking reaction. Therefore, the effect of the method on the performance of the adhesive film performance and the application performance of fabric printing was investigated further.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
The effect of DAAM dosage on the binding degree of the binder and the water absorption rate. With the increase of DAAM, the amount of the emulsion is decreasing and the coagulation increases, which indicates that the latex particles are increasing, and the corresponding storage stability is poor.
Moreover, the more stable the polymerization process, the better the transparency and luster of the polymer film. Therefore, in order to ensure the stability of the aggregation, the DAAM addition should be less than 3% of the total mass. In addition, the effect of DAAM on the appearance of emulsion and the distribution of particle size is also obvious.
The effect of DAAM on the size of the emulsion. The average particle size of the emulsion increases with the increase of DAAM, and the amount of the DAAM is 3% or higher, and the size of the particle is larger and wider. This is due to the increased use of DAAM, which increases the amount of dissolved water in the water and increases the risk of water forming in the process.
Since water each other nuclear consumes part of primary radicals, reduces the micellar nucleation rate, nucleation caused prolonged, formed on the number of latex particles decreases, particle size increases. When less than 3%, the surface of the emulsion is smooth, the particle size is fine, and the particle size is narrow, within the range of suitable size. The effects of DAAM on the application performance of fabric printing were further discussed.
The effect of DAAM usage on the application of fabric printing. With the increase of DAAM usage, the feeling of the printed fabric is hardened by soft, gradually increasing elasticity, but it declines after more than 2%. The wet friction performance was excellent with the dosage, and the dry friction performance changed little.
Reason is: when the dosage of DAAM partial hours, enough effective crosslinking polymer system, film bibulous rate is high, the wet friction performance deviation, deviation and the flexibility of the film and toughness, the elasticity of fabric printing would also be affected. However, when DAAM is overused, it produces excessive cross-linking, which can cause the film to be brittle and the fabric prints are hard and can easily crack. The effect of the combination of printed feeling and dry, wet friction, the experiment determined that the amount of DAAM was 1.5%.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
The effect of ADH and DAAM on film performance. The effects of different ADH and DAAM on emulsion performance were investigated.
M (ADH) : m (DAAM) < 1%, the membrane performance of the emulsion is better, as m (ADH) : m (DAAM) increases, the crosslinking degree of the membrane increases, and the absorption rate decreases. But when m (ADH) : m (DAAM) is increased to 2, the membrane performance deteriorates, the emulsion membrane becomes white and crisp, and the suction rate of the film increases. The reason is that with the increase of ADH, the increase of interconnection points in the system caused the membrane crosslinking to increase, reducing the water absorption rate.
In addition, when the amount of ADH exceeds a certain value, the excess of ADH and crosslinked polymer, after waiting for evaporation from the precipitation in the system, affect transparency film and bibulous rate, thus affect the overall performance of the film. Overall consideration, when m (ADH) : m (DAAM) = 0.8 ~ 1, the emulsion performs better.
The effect of DAAM on the performance of the film and print products. Studies with hydroxylamine hydrochloride (NH2OH · HCl) ketone carbonyl content and find general emulsion copolymerization of ketone carbonyl content was only 60% ~ 80% of the theory, which is exposed on the surface can attend hydrazide reaction was only 60% ~ 80% of the theory.
So imagine when synthetic latex DAAM different ways of adding affect ketone carbonyl in the distribution of the latex particle surface, and thus influence ketone carbonyl and hydrazide late crosslinking reaction. Therefore, the effect of the method on the performance of the adhesive film performance and the application performance of fabric printing was investigated further.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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