As a new environmental protection material, TPU is safe, nontoxic and harmless, and can be recycled. It has a wide range of applications, most of which are used in mobile phone protective covers, smart wristbands, film TPU, cable material TPU and so on. TPU has very controllable physical properties, and can be prepared into medical grade, food grade, flame retardant and so on, and has passed the human skin contact test. TPU gradually replaces silica gel raw materials in application, because TPU can be recycled and its price is more advantageous. TPU has simple processability, can be processed by general injection molding machine, and has the advantages of good elasticity, high hardness, wear resistance and oil resistance, and high transparency.
Extended data:
TPU material has the following characteristics:
1, high mechanical strength: TPU products have outstanding bearing capacity, impact resistance and shock absorption performance.
2. Outstanding cold resistance: The glass transition temperature of TPU is relatively low, and it still maintains good physical properties such as elasticity and flexibility at MINUS 35 degrees. As we all know, wear resistance, tear resistance and buckling strength are excellent.
3. Oil resistance: TPU is superior to NBR in oil resistance and has excellent oil resistance life.
4. Good processability: TPU can be processed by ordinary processing methods of thermoplastic materials, such as injection molding, extrusion and calendering. At the same time, TPU can be processed with some polymer materials to obtain polymer alloys with complementary properties. Oil-resistant, waterproof and mildew-proof. Good recovery performance.
5. Food medical hygiene: TPU has biocompatibility and anti-hemagglutination, and medical TPU is more and more widely used. Such as blood vessels, ureters and infusion tubes. TPU contains no fortifier, is non-toxic and tasteless, and is widely used in food industry.
References:
Baidu encyclopedia -TPU polyurethane
Baidu encyclopedia -TPU material