Polyurea in reaction injection molding (RIM) technology developed on the basis of a bicomponent (R, A), spraying, the flexibility of response curing coating. R group is the main material in the end-poly propylene oxide ether (also known as end-polyether), and add liquid amine chain extender, paint and a combination of a number of additives; A group of from isocyanate (MDI ) And oligomers diols or ternary system in response to alcohol.
Polyurea as a coating new materials, it has completely changed the engineers of the past, coating the concept of cognition. Because there are no other coating materials can be as polyurea, we can take a sledgehammer to crack down on the most serious and wear, but also have sufficient flexibility, in the event of significant expansion and contraction caused concrete cracking or deformation of the steel structure , The film will not be broken, even in the pipeline prominent, subsidence and other abnormal conditions, is still able to complete a review security in the entire surface. These excellent performance guarantees polyurea in engineering applications in longevity and reliability, as long as 30 to 50 of the period highlighted by the polyurea with the very high price.
Second, characteristics:
1
Non-catalyst, and rapid curing, in any surface, vertical and inclined plane on the spraying in shape, no current link, 5 seconds gel, one minute walk to reach strength.
Two pairs of moisture, temperature sensitive, from the environment during the construction of temperature, humidity impact (in -28 ℃ under construction, can be sprayed on the ice in curing).
Three pairs of components, 100% solid content, without any volatile organic compounds (VOC), the environment friendly and pollution-free construction, health of the use of sound.
4 thermal spraying or pouring, the thickness of a range from several hundred microns to a few centimeters, has overcome the shortcomings of the past on many occasions.
5 excellent physical and chemical properties, high tensile impact strength, flexibility, wear-resistance, anti-slippery, anti-aging and anti-corrosion.
6 has a good thermal stability, in the 120 ℃ under long-term use, affordable 350 ℃ the short-term thermal shock.
7 prototype reproducibility, and coating continuous, dense, no seams, no needle marks, handsome practical durability.
8 Construction of the use of complete sets of equipment, high efficiency; time to meet the design of the thickness requirements, switching equipment with a variety of models that can spray can also be pouring good. And through the construction of anti-skid control to achieve results.
9 has a good cohesive force, in steel, timber, concrete or any other substrate molding on the spraying. |
