The temperatures that need to be controlled during the TPU material forming process are barrel temperature, nozzle temperature, and mold temperature. The former temperature mainly affects the plasticization and flow of the TPU, and the latter temperature affects the flow and cooling of the TPU. The choice of barrel temperature is related to the hardness of the TPU; the nozzle temperature is usually slightly lower than the maximum temperature of the barrel to prevent possible drooling of the melt in the straight-through nozzle. If a self-locking nozzle is used to prevent the flow, the nozzle temperature can also be controlled within the maximum temperature range of the barrel; the mold temperature has a great influence on the intrinsic performance and apparent quality of the TPU product. The temperature of the mold depends on many factors such as the crystallinity of the TPU and the size of the product.
Professional processing and production of TPU film for high gas permeability (can reach 10000g/m2/24 hours, and can reach 5000-7000g/m2/24 hours after bonding, depending on the method, technology and fabric and glue of each factory) Different)
Use introduction
A ready-to-wear snowsuit, raincoat, windbreaker, cold jacket, field suit, diaper, physiological pants and other fabrics and lining materials
B footwear sneakers, sports shoes, hiking shoes, snow caps, golf shoes, skates fabrics and lining materials
C medical surgical gowns, protective clothing, caps, shoes, band-aids, bandages, plasma bags, condoms, surgical bandages, masks and other fabrics and lining materials
D defense supplies field tents, field water bags, life jackets, inflatable boats and other fabrics and lining materials
E other use of mobile phone buttons, plastic toys, bed sheets, tablecloths, shower curtains, furniture fabrics, aprons, pianos, computer keyboards, film and other fabrics and lining materials
*High water resistance (the film with good air permeability is usually made of polyether type TPU, so it is excellent in hydrolysis resistance and antibacterial property, because of its high strength and excellent water pressure resistance)
*Superb wear resistance: 4-5 times of rubber
*High tensile strength and elongation of 300--500%
*Excellent chemical and oil resistance: most excellent than general materials
*Excellent transparency: transparency can be adjusted according to usage
*High elasticity: good elasticity and strong resilience
*Excellent cold resistance: the physical properties do not change at -40~--70`C
* Biomedical properties: Excellent biocompatibility, non-toxic, non-allergic, and non-local irritation.
