News Details
Aluminized transfer coating with waterborne polyurethane crosslinking agent
2017-3-25 16:39:33
Aluminized transfer coating with waterborne polyurethane crosslinking agent,Transfer coating characteristics:
(1) a single set of FenJiao couplet.
(2) the highest oven temperature about 120 ℃, low drying temperature, energy saving effect is good.
Technical indicators:
(1) concept: a blue translucent liquid, no mechanical impurities.
(2) solid content: 25 + / - 2%
(3) the pH value: 6.5-9
(4) viscosity: 15 + / - 3 seconds (with 4 cups of 25 ℃)
(5) there is no doubt that be like benzene peak.
Application process:
(1) coating workshop environment best meets the following conditions: around 25 ℃, relative humidity 60% or less.
(2) the proposal chooses ceramic roll coating, about 250 lines, dry coating weight of about 1.2 to 1.4 g/m2, can also according to the equipment and process conditions. Base material such as various types of PET film.
(3) advice on viscosity of 12 to 15 seconds (tu - 4 cups), can also according to the process equipment.
(4) suggest that drying temperature of 65 ℃, 90 ℃, 110-120 ℃, 90 ℃, the machine speed for 120 m/min.
Matters needing attention
(1) aluminized transfer waterborne polyurethane coating cannot join high water hardness, available < 80% concentration of diluted alcohol.
(2) aluminized transfer coating for anionic waterborne polyurethane, if you want to add other substances, can join the nonionic and anionic substances, do not add acid or cationic substances, join any material please do test to confirm.
(3) for mixing, speed should not exceed 600 RPM, stirring time does not exceed 30 minutes.
(4) aluminized transfer coating can be added to anionic waterborne polyurethane or nonionic aqueous dye staining.
(5) aluminized coating and drying after coating, waterborne polyurethane proposal placed 24 h after aging test evaluation of various performance indicators (heat-resistant, stripping).
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
The influence of isocyanate types of performance. In this experiment, the amount and type of polyols are fixed change the type of isocyanates, found is H12MDI for heat resistance performance has improved obviously. The peel strength are also acceptable.
N (NCO)/n (OH) - value impact on performance. In the reaction of fixed number of polyols, change the number of isocyanate, found that as the system of n (NCO)/n (OH) - increases, the tensile strength of the film increased, flexibility, rigidity, hardness, toughness, folding resistance is reduced, but the heat resistance performance improvement.
This is because, with the increase of ratio of hard segment and urea key content will increase, so the folding resistance decreased and thermal glue flowers resistance improved. A combination of factors, n (NCO)/n (OH) - control between 1.1 to 1.2 for more appropriate.
Small molecule alcohol's impact on performance. Found by experiment, with 1, 4 butyl glycol two cooperate with TMP, temperature resistance and peel strength can be unified, effectively use 1, 4 butanediol heat resistance is poor, TMP alone high peel strength, of which 1, 4 butyl glycol two the number of TMP ratio 2.1-2.5:1 performance meet to the requirement of use.
The influence of inorganic silicon modified resin. Comparative experiments have found that the addition of inorganic silicon modified resin on the final product of low peel strength produced significant help, through the experiment, inorganic silicon modified resin with the formula according to the proportion of 1:9, join the flow rate of 1 kg/min, 15 ℃ keep stirring for 1 hour, optimal performance and storage stability.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
(1) a single set of FenJiao couplet.
(2) the highest oven temperature about 120 ℃, low drying temperature, energy saving effect is good.
Technical indicators:
(1) concept: a blue translucent liquid, no mechanical impurities.
(2) solid content: 25 + / - 2%
(3) the pH value: 6.5-9
(4) viscosity: 15 + / - 3 seconds (with 4 cups of 25 ℃)
(5) there is no doubt that be like benzene peak.
Application process:
(1) coating workshop environment best meets the following conditions: around 25 ℃, relative humidity 60% or less.
(2) the proposal chooses ceramic roll coating, about 250 lines, dry coating weight of about 1.2 to 1.4 g/m2, can also according to the equipment and process conditions. Base material such as various types of PET film.
(3) advice on viscosity of 12 to 15 seconds (tu - 4 cups), can also according to the process equipment.
(4) suggest that drying temperature of 65 ℃, 90 ℃, 110-120 ℃, 90 ℃, the machine speed for 120 m/min.
Matters needing attention
(1) aluminized transfer waterborne polyurethane coating cannot join high water hardness, available < 80% concentration of diluted alcohol.
(2) aluminized transfer coating for anionic waterborne polyurethane, if you want to add other substances, can join the nonionic and anionic substances, do not add acid or cationic substances, join any material please do test to confirm.
(3) for mixing, speed should not exceed 600 RPM, stirring time does not exceed 30 minutes.
(4) aluminized transfer coating can be added to anionic waterborne polyurethane or nonionic aqueous dye staining.
(5) aluminized coating and drying after coating, waterborne polyurethane proposal placed 24 h after aging test evaluation of various performance indicators (heat-resistant, stripping).
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
The influence of isocyanate types of performance. In this experiment, the amount and type of polyols are fixed change the type of isocyanates, found is H12MDI for heat resistance performance has improved obviously. The peel strength are also acceptable.
N (NCO)/n (OH) - value impact on performance. In the reaction of fixed number of polyols, change the number of isocyanate, found that as the system of n (NCO)/n (OH) - increases, the tensile strength of the film increased, flexibility, rigidity, hardness, toughness, folding resistance is reduced, but the heat resistance performance improvement.
This is because, with the increase of ratio of hard segment and urea key content will increase, so the folding resistance decreased and thermal glue flowers resistance improved. A combination of factors, n (NCO)/n (OH) - control between 1.1 to 1.2 for more appropriate.
Small molecule alcohol's impact on performance. Found by experiment, with 1, 4 butyl glycol two cooperate with TMP, temperature resistance and peel strength can be unified, effectively use 1, 4 butanediol heat resistance is poor, TMP alone high peel strength, of which 1, 4 butyl glycol two the number of TMP ratio 2.1-2.5:1 performance meet to the requirement of use.
The influence of inorganic silicon modified resin. Comparative experiments have found that the addition of inorganic silicon modified resin on the final product of low peel strength produced significant help, through the experiment, inorganic silicon modified resin with the formula according to the proportion of 1:9, join the flow rate of 1 kg/min, 15 ℃ keep stirring for 1 hour, optimal performance and storage stability.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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