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Recently, the National Development and Reform Commission released the "Barometer of Completion of Energy Consumption Dual Control Targets in Various Regions in the First Half of 2021", showing that the energy intensity of nine provinces and cities including Jiangsu, Anhui, and Yunnan has risen instead of falling, and the coatings and chemical industries have also begun to increase.
Pay attention to the issue of energy consumption and emissions
.
As we all know, although powder coatings are green and environmentally friendly, their curing temperature is high and energy consumption is a weakness.
Therefore, reducing energy consumption has always been a goal pursued by the powder coating industry.
At this time, low-temperature curing powder coatings came into being
.
The curing temperature of powder coatings is usually around 200°C.
If it can be lowered to below 160°C, while reducing the curing time, it can also be applied to parts that are not resistant to high temperatures, which can bring a qualitative leap and a breakthrough in coatings online coatingol.
com
.
Institutional calculation data shows that in a medium-scale industrial curing furnace, when the curing temperature of the powder coating drops from 160°C to 130°C, approximately 15% of energy can be saved
.
It can be seen that the cost savings brought by low-temperature curing for powder coating customers are considerable
.
To achieve this breakthrough, it is necessary to work hard on the raw material polyester resin
.
Mr.
Yan, the head of Allnex Resin, a leading domestic resin industry company, said that the performance parameters that can be adjusted for outdoor polyesters are relatively limited, which brings challenges to the low temperature of outdoor powder coatings.
The curing temperature of powder coatings is a top priority
.
In order to meet market demand and bring more high-quality products to customers, Allnex Resins has developed several highly reactive polyesters in response to the demand for low-temperature curing in the market over the years
.
It can be used outdoors, and it can be cured with TGIC to get a good coating film, which is suitable for different application fields
.
CRYLCOAT®2451-6 and CRYLCOAT®2403-6 120C°, curing in 20 minutes:
Test formula
Flour milling conditions
Basic performance test
Aging data
Aging test conditions: QUVB313, radiation intensity 0.
75W/m², 4 hours UV irradiation @50°C, 4 hours condensation @40°C
CRYLCOAT®2451-6 and CRYLCOAT®2403-6 are two products that can be fully cured at 120 degrees/20 minutes.
Both have very good mechanical properties and are suitable for texture powders
.
CRYLCOAT®2403-6 has better aging resistance than CRYLCOAT®2451-6
.
CRYLCOAT®2499-6 and CRYLCOAT®2435-6 160℃, 15 minutes curing
Test formula
Flour milling conditions
Basic performance test
Aging data
Aging test conditions: QUVB313, radiation intensity 0.
75W/m², 4 hours UV irradiation @50°C, 4 hours condensation @40°C
CRYLCOAT®2499-6 and CRYLCOAT®2435-6 are two products that can be fully cured at 160°C/15 minutes, both of which have relatively good appearance, mechanical properties and aging resistance
.
The above products have been mass-produced and have obtained very good practical application effects, which have been praised and recognized by customers
