Advantages and Disadvantages Comparison of Slurry Pump Elastic Polyurethane

Polyurethane physical and chemical properties superior, in recent years has been widely used in mining machinery. Polyurethane is a kind of polymer synthetic material, its performance is similar to rubber: wear-resisting, good elasticity, high strength, the use of the field almost coincide with the field of application of rubber. Compared with rubber, it has some advantages, such as good plasticity, can be made according to the needs of a variety of objects; its high hardness, to meet a wide range of hardness requirements. Today's latest valid order information free to send! Morning latest buyers information free to send! Punch grab Rob here! Slurry pump elastomer polyurethane has the following advantages. (1) a wide range of hardness. And in high hardness still has good rubber elasticity and elongation. (2) high strength. They have much higher tensile and tear strengths than rubber rubbers at rubber hardness. At plastic hardness, their impact strength and bending strength are much higher than those of plastic. (3) wear-resistant. There is a good name for "wear-resistant rubber." Especially with water and other wetting media under the working conditions, the wear resistance is often several times the ordinary rubber material. Metal materials, such as steel, although hard but not necessarily wear-resistant. (4) shock absorption, radiation resistance and resistance to air permeability. At the same time, it also has excellent oil, impact resistance, low temperature, radiation and load-bearing, thermal insulation, insulation and other properties. Of course, the shortcomings of polyurethane elastomer is there. (1) endogenous heat. High temperature performance in general. In particular, resistance to heat and humidity is not good. Normal use temperature requirements within 120 degrees. If the long-term work in high-frequency oscillation conditions, it must be used in a sufficient cooling medium. Slurry pump in this area is just the advantages and disadvantages, with submerged state to absorb heat, so as to achieve the purpose of protecting the coating. In a sense, the worst case of rigid coating applications is the best case for elastomeric polyurethanes. (2) intolerant strong polar solvents and strong acid-base medium. At a certain temperature, the alcohol, acid and ketone will make the polyurethane elastomer swell and degrade. Dichloromethane, trichlorethylene, etc. at room temperature will make the polyurethane elastomer swelling. Qinhuangdao is the United States Hao Engineering Co., Ltd. from Canada introduced a new type of polyurethane elastomer. This elastomer has targeted to solve the polyurethane elastomer in the construction of some of the problems, and complete preservation of the original material excellent physical and chemical properties. Shore hardness of this wear-resistant coating spans large. From Shore A45 to Shore D60. According to the different conditions of the environment to adjust the hardness, increase the content of polar groups, make full use of hydrogen bonds to enhance the intermolecular force, effectively extend the coating effective time. In addition, this material not only can effectively resist erosion, cavitation wear, and can withstand pH 3-11 pH range of strong acid, alkali corrosion. This material can not only protect the water erosion on the surface of the parts, cavitation wear can also protect the parts from acid-base corrosion, can be described as a truly universal surface treatment materials. This kind of material is versatile and widely used in various industrial fields that need to provide anti-corrosion and wear-resistant protection and has achieved good results. Facts have proved that the combination of this material and the substrate is very strong, the coating life is generally ten times more than ordinary metal materials, the economic benefits are quite significant.

Reflective Snap Bands

Reflective Snap Bands,Slap Band,Reflective Wrap Slap Band

Reflective Material Car Number Plate Co.,Ltd , http://www.nsreflectivematerial.com