Mechanical properties of polyurethane Polyurethane elastomer has good mechanical properties, such as good young's modulus, tensile strength, tear strength and load capacity.   Young's modulus and tensile strength Within the elastic limit, the ratio of tensile stress...

Photostability and radiation resistance of polyurethane   Polyurethane synthesized from aromatic isocyanate (such as TDI and MDI) is easy to oxidize and turn yellow when exposed to ultraviolet light, which is caused by the bridge bond structure of aromatic biuret. Under UV irradiation, it is...

The flexibility of polymer molecules is the reason of high elasticity. However, due to the large number of polar groups in the molecular structure of polyurethane elastomers, the large molecular internal force and intermolecular force, together with other factors that may hinder the free rotation of single bond,...

Oil resistance and chemical resistance generally refers to the generalized oil resistance including solvent resistance, which is in principle suitable for the swelling equilibrium formula proposed by Flory et al. That is to say, only expansion occurs and only swelling equilibrium occurs. Chemical resistance or...

Technical background: In the current photovoltaic industry, a large number of high-purity polysilicon materials are required for the manufacturing of crystalline silicon solar cells, which occupy a leading position. The main process of Siemens method is to reduce silicon by reaction of...

Polyurethane elastomer products are used in different industries, most of which are industrial spare parts. This kind of products have the general characteristics of wear-resistant, good elasticity, corrosion-resistant, easy to clean. They can also be customized in various shapes and sizes according to...

Large plate vulcanizing press for custom compression molding polyurethane parts     Open casting and compression casting are two main manufacturing process of polyurethane elastomer. Compression molding...

New testing equipment for polyurethane wheels   Polyurethane coated wheels are widely used in many industries where require impact and abrasion resistance. In most cases, they are key parts. To reduce down time, life...

Q1: Do you have stocked urethane bushings? A1: No. We only make custom urethane bushings.   Q2: How can you offer cost for custom urethane bushings? A2: Please provide drawing, hardness, quantity and working environment.   Q3: Do you have MOQ for polyurethane...

Application of solid cast urethane pipeline pig, cup and disc With the development of large-scale exploitation of petroleum, chemical industry, urban water supply and natural gas transportation industry, the demand for pipeline descaling, paraffin removal and new pipeline coating and anti-corrosion...

Maybe we will use nylon as the material for general floor protection and its temperature resistance, though the temperature resistance of polyurethane is not as good as that of nylon. As to protection of the floor, the most important thing is to be able to resist the impact. As the structure of polyurethane is...

 Polyurethane itself is a high polymer, which has several times better wear resistance and elasticity than nylon. Therefore, polyurethane is widely used, and its main raw materials are only composed of two kinds of chemical substances, which are relatively simple. But it is also relatively variable. First...