Performance of polyurethane TPU hose
Thermoplastic polyurethane elastomer (TPU) hoses are between rubber and plastic and have many excellent properties:
1. Excellent wear resistance: Its Taber abrasion value is 0.35-0.5mg, which is the smallest among plastics. Adding lubricants can reduce friction and further improve wear resistance
2. Tensile strength and elongation rate: The tensile strength of TPU is 2-3 times that of natural rubber and synthetic rubber. The tensile strength of polyester TPU is greater than 60Mpa, with an elongation rate of 410%. The tensile strength of polyurethane TPU is 50Mpa, with an elongation rate of 550%
3. Oil resistance: TPU has excellent oil resistance compared to nitrile rubber and has an excellent oil resistance life
4. TPU has low temperature resistance, weather resistance, and ozone resistance. Its weather aging resistance is superior to natural rubber and other synthetic rubbers. Its ozone resistance and radiation resistance have special applications in the aerospace industry
5. Food, medical and hygiene: TPU has biocompatibility and anti coagulation properties, and its application in medical use is becoming increasingly widespread. Such as blood vessels, ureters, and infusion tubes. TPU does not contain reinforcing agents, is non-toxic and odorless, and is widely used in the food industry
6. Hardness range: TPU has a hardness of 10A-80D and similar compression deformation characteristics below 15A. When the hardness is above 85A, TPU still maintains elasticity, which is a characteristic that other elastomers do not have. Therefore, TPU has high load support capacity and good suction and discharge effect
7. TPU hoses are generally divided into polyester TPU, polyether TPU, and poly (ε - caprolactone) TPU hoses:
Performance characteristics of polyester TPU hose
Polyester TPU hose: It has high mechanical temperature, good wear resistance, oil resistance, fuel and solvent resistance, high temperature performance, and excellent UV linearity and hydrolysis stability. For applications with the above requirements, it is recommended to use polyester TPU series hoses
Performance characteristics of polyether TPU hose:
For applications that require low-temperature flexibility, good weather resistance, hydrolysis resistance, and resistance to bacterial growth, it is recommended to use polyether TPU series hoses
Performance characteristics of iii polycaprolactone type TPU hose
Polycarbonate TPU hose: It has the mechanical strength and high temperature performance of polyester TPU, as well as the hydrolysis resistance and low temperature resistance of polyether TPU. It has good resilience and is suitable for applications in special industries
PU spiral tube: very good elasticity. Has excellent mechanical and chemical properties, particularly cold resistance, oil resistance, weather resistance, wear resistance, and tear resistance. Suitable for use in mechanical manufacturing, power tools, and other applications, it is the optimal solution in most fields
Performance of polyvinyl chloride PVC hose
According to the hardness and performance of the material, there are generally 7 levels (SG1-SG7), with a density of about 1.4g/cm. SG4 and below are generally soft products that require a large amount of plasticizers during molding. They are mainly used for making leather, cable insulation layers, seals, etc. SG5 and above are hard products mainly used to make various pipes, such as drainage, electrical, postal and telecommunications pipes and fittings, various boards, sheets, profiles, etc. The shrinkage rate of PVC molding is 0.6-1.5%, with good mechanical properties, excellent electrical properties, self extinguishing ability, strong acid and alkali resistance, good chemical stability, and low price. It is a widely used universal plastic. But due to its low operating temperature, up to around 80 ℃, its development has been hindered