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Powder coating crosslinking agent of crosslinking conditions
2017-3-18 17:37:42
Powder coating crosslinking agent of crosslinking conditions,The influence of weather on film
Will made mixture powder coating polyester resin, its under different conditions the coating after 1000 h after crosslinking the light rate after artificial aging test, the same time, the coating of weathering as crosslinking temperature rise and rise.
The same temperature, the coating of weathering as the crosslinking time extension and enhancement, tends to be stable after 10 min. Considering the coating performance and energy consumption, efficiency of the production process, equipment loss and other factors, select 160 ° C / 10 min as the most ideal crosslinking conditions.
The wet and heat resistance. According to GB/T 1740-2007 the film resistance to heat and humidity measurement, test plate vertical suspension (47 + 1) ° C in temperature and relative humidity of 96% plus or minus 2% of LP - 150 programmable temperature humidity test chamber. Timing starts when the temperature and humidity to set data, to observe the surface condition of coating after 1000 h.
The crystallization properties of polyester resin. In wide Angle diffraction Angle is 17.2 ° and 24.8 ° and 28.6 °, each have a diffraction peak, and the sharpest diffraction peak at 17.2 °. Judging from the position of a sharp peak synthesis of crystalline polyester resin, and were treated with method of peak points calculate crystallinity of 16.89%.
3446.49 cm - 1 peak belongs to nu O ─ H (stretching vibration), the vibration of multisubstituted benzene ring is weak, the corresponding basic submerged absorption peak. 2, 944.00 890.71 cm - 1 ~ 2 peak said ─ CH2 ─ ─ nu C H, 1374.89 cm - 1 and 1506.31 cm - 1 the peak says ─ CH2 ─ ─ delta C H (bending vibration, the in-plane); 727.48 cm - 1 peak said ─ CH2 ─ ─ delta C H (surface); 1645.99 cm - 1 peak belongs to nu C ═ O; 1116.39 cm - 1 peak belongs to nu C ═ O, about 270.92 cm - 1 peak belongs to nu ─ O C. The results show that the molecular structure of the polyester resin in line with expectations.
Acid salt fog corrosion resistance. Along the diagonal row 2 to base material on the sample of the intersection line, the line is not through the diagonal and the test endpoints and corresponding diagonal equidistance, then according to GB/T 10125-2012 "artificial atmosphere corrosion test, salt fog test for acetic acid salt spray test 1000 h after visual inspection and film coating surface under unilateral penetration degree.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packing： net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
Various properties of coating film is excellent, can satisfy the use requirement.
Using neopentyl glycol, terephthalic acid, adipic acid, tin acid, trimellitic anhydride synthesis is suitable for the beta? HAA system of low temperature crosslinking end carboxyl polyester resin, with its preparation of powder coatings in 160 ° C / 10 min crosslinking the coating obtained under the condition of excellent weatherability, comprehensive performance with conventional polyester powder coatings, has the very high application value.
Beta? HAA system of low temperature crosslinking of polyester powder coatings of low toxicity, on a line of production and construction personnel of small physical injury, and has greatly reduced energy consumption, improve labor efficiency and other advantages.
Powder coating crosslinking agent market price trend and influence factors analysis
With the increase of demand for outdoor products, sales of TGIC steady growth in recent years. Thanks to the cost pressures of pure polyester powder coatings gradually replace indoor the trend of mixed powder coating, HAA sales maintained a rapid growth.
As people to in-depth exploration of powder coatings, powder coatings cross-linking agent with development, should seek a lower heat crosslinking temperature, smaller, more energy saving, low moisture absorption sex, coating in good condition, good hydrolysis resistance, good flexibility, high permeability, low melt viscosity, excellent storage stability and good applicability material powder coatings as crosslinking agent.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Will made mixture powder coating polyester resin, its under different conditions the coating after 1000 h after crosslinking the light rate after artificial aging test, the same time, the coating of weathering as crosslinking temperature rise and rise.
The same temperature, the coating of weathering as the crosslinking time extension and enhancement, tends to be stable after 10 min. Considering the coating performance and energy consumption, efficiency of the production process, equipment loss and other factors, select 160 ° C / 10 min as the most ideal crosslinking conditions.
The wet and heat resistance. According to GB/T 1740-2007 the film resistance to heat and humidity measurement, test plate vertical suspension (47 + 1) ° C in temperature and relative humidity of 96% plus or minus 2% of LP - 150 programmable temperature humidity test chamber. Timing starts when the temperature and humidity to set data, to observe the surface condition of coating after 1000 h.
The crystallization properties of polyester resin. In wide Angle diffraction Angle is 17.2 ° and 24.8 ° and 28.6 °, each have a diffraction peak, and the sharpest diffraction peak at 17.2 °. Judging from the position of a sharp peak synthesis of crystalline polyester resin, and were treated with method of peak points calculate crystallinity of 16.89%.
3446.49 cm - 1 peak belongs to nu O ─ H (stretching vibration), the vibration of multisubstituted benzene ring is weak, the corresponding basic submerged absorption peak. 2, 944.00 890.71 cm - 1 ~ 2 peak said ─ CH2 ─ ─ nu C H, 1374.89 cm - 1 and 1506.31 cm - 1 the peak says ─ CH2 ─ ─ delta C H (bending vibration, the in-plane); 727.48 cm - 1 peak said ─ CH2 ─ ─ delta C H (surface); 1645.99 cm - 1 peak belongs to nu C ═ O; 1116.39 cm - 1 peak belongs to nu C ═ O, about 270.92 cm - 1 peak belongs to nu ─ O C. The results show that the molecular structure of the polyester resin in line with expectations.
Acid salt fog corrosion resistance. Along the diagonal row 2 to base material on the sample of the intersection line, the line is not through the diagonal and the test endpoints and corresponding diagonal equidistance, then according to GB/T 10125-2012 "artificial atmosphere corrosion test, salt fog test for acetic acid salt spray test 1000 h after visual inspection and film coating surface under unilateral penetration degree.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packing： net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
Various properties of coating film is excellent, can satisfy the use requirement.
Using neopentyl glycol, terephthalic acid, adipic acid, tin acid, trimellitic anhydride synthesis is suitable for the beta? HAA system of low temperature crosslinking end carboxyl polyester resin, with its preparation of powder coatings in 160 ° C / 10 min crosslinking the coating obtained under the condition of excellent weatherability, comprehensive performance with conventional polyester powder coatings, has the very high application value.
Beta? HAA system of low temperature crosslinking of polyester powder coatings of low toxicity, on a line of production and construction personnel of small physical injury, and has greatly reduced energy consumption, improve labor efficiency and other advantages.
Powder coating crosslinking agent market price trend and influence factors analysis
With the increase of demand for outdoor products, sales of TGIC steady growth in recent years. Thanks to the cost pressures of pure polyester powder coatings gradually replace indoor the trend of mixed powder coating, HAA sales maintained a rapid growth.
As people to in-depth exploration of powder coatings, powder coatings cross-linking agent with development, should seek a lower heat crosslinking temperature, smaller, more energy saving, low moisture absorption sex, coating in good condition, good hydrolysis resistance, good flexibility, high permeability, low melt viscosity, excellent storage stability and good applicability material powder coatings as crosslinking agent.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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