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Views:16 Author:Site Editor Publish Time: 2020-11-16 Origin:Site
Application of polyurea coatings in life
Spray Polyured Waterproofing Coating is an advanced and highly safe coating imported from abroad. Continuously improve and perfect in combination with relevant domestic scientific research units. The polyurea coatings currently sold in the domestic market have the characteristics of solvent-free, pollution-free, and highly reactive protection.
The polyurethane on-site foaming equipment consists of a two-component A, B, solvent-free, fast-curing green and environmentally friendly elastic waterproof material, which is divided into high-elastic spraying (pure) polyurea waterproof coating (JNC) according to different film-forming reaction groups And high-elastic spray polyurethane (urea) (commonly known as semi-polyurea) elastic waterproof coating (JNJ), according to the physical properties is divided into type I and type II. The components A and B are mixed and sprayed in the spray gun of the special spraying equipment, and react and cure quickly to form an elastomer waterproof film. High-elastic spray (pure) polyurea waterproof coating A component is a semi-prepolymer prepared by reacting a hydroxyl-terminated compound with an isocyanate; the B component is a mixture composed of an amino-terminated resin and an amino-terminated chain extender. Contains any hydroxyl components and catalysts, but it is allowed to contain Shaoli pigments and dispersing additives.
The A component of the polyurethane field foaming equipment waterproof coating is a semi-prepolymer prepared by the reaction of a hydroxyl-terminated compound and isocyanic acid; the B component is a mixture of a hydroxyl-terminated resin or an amino-terminated resin and an amino-terminated chain extender. The B component can contain a catalyst for improving the reaction activity, and it is allowed to contain oligomeric pigments and dispersing additives. This product needs to be sprayed and formed by special professional construction machinery when forming a film. Its excellent physical and chemical performance indicators, convenient construction technology, integrity of the waterproof and anti-corrosion system, and environmental protection are beyond the reach of any other traditional protective materials and technologies. It is widely used in urban subway, high-speed railway, tunnel and bridge, water conservancy and electromechanical, marine chemical industry, military and civilian projects for waterproof, anti-corrosion, abrasion resistance and "two prevention and one resistance" projects.
Now, with the improvement of residents' material consumption level, people's requirements for the living environment are constantly changing. Environmental comfort, safety, and environmental protection have become the leading direction pursued by modern people. Traditional home improvement coatings are gradually abandoned by the market. Because traditional coatings can no longer meet the needs of modern interiors. The appearance of toxic paint, pungent smell paint, and inferior paint makes people fearful and has a serious impact on the human body. Now, it is replaced by polyurea coatings with very high safety performance.
Timing refers to the specified time, and quantitative refers to the number of specifications. The fixed quantitative polyurethane spraying machine sprays the specified amount of polyurethane within the specified time. The program control of the pouring equipment is very accurate, continuous and rapi
With the development of technology and society. Polyurethane spraying machines are also constantly developing and producing higher quality products. From manual foaming to low-pressure spraying machines to the current high-pressure spraying machines, they are also constantly updated and upgraded, co
Polyurea spray equipment is usually used in construction, mainly because polyurea has a strong anti-corrosion effect. Has a certain adhesion and strength. In order to improve the adhesion of the coating, it is necessary to strictly control the substrate used and improve it if necessary, so the polyu
The cold fog machine was once called the normal temperature fog machine, which is relatively speaking with the hot fog machine. It uses high-pressure air generated by an air compressor to form a high-speed rotating airflow through a pneumatic atomizing nozzle. The liquid medicine is formed into tiny
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he polyurea spraying machine includes the main engine, spray gun, feed pump, feed pipe, A component, R component, heating hose and many other parts, which must be connected reasonably to ensure the smooth completion of the spraying operation.The two lifting pumps are respectively inserted into the i
Cold storage insulation we usually use polyurethane sandwich double-sided color steel cold storage insulation board or directly spray polyurethane facade on the wall for insulation. In the southeast of my country, polyurethane sandwich double-sided color steel cold storage insulation boards are most
(1) It does not contain a catalyst, and the curing speed is very fast. It can be sprayed on any kind of curved, inclined and vertical outermost layer without sagging, and it solidifies within 5 seconds. The glue can reach walking strength within 1 minute; (2) It is not very sensitive to humidity a
In recent years, polyurethane resins have made their composites stand out due to their good toughness, fast curing speed, and no styrene smoke. With people's mastery of polyurethane molding technology and progress in controlling its reactivity to extend its service life, polyurethane has long entere
1. What is polyurethane spraying?Polyurethane spraying technology is based on isocyanate and polyether as the main raw materials. Under the action of various additives such as blowing agent, catalyst, flame retardant, etc., through the use of special network equipment and mixing, the high-pressure s
