Preparation method of thermoplastic polyurethane elastomer film
A thermoplastic polyurethane and elastomer technology, which is applied in the field of polymer material preparation, can solve the problems of poor performance and uneven thickness of polyurethane elastomer film, and achieve the effects of reducing energy consumption, eliminating interchain interaction, and saving floor space
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] The ratio of raw materials for thermoplastic polyurethane elastomer film, in parts by mass:
[0030]
[0031]
[0032] Preparation process: melt polyester polyol with a relative molecular weight of 1000 in a hot water bath at 90°C and put it into storage tank A; melt 4,4'-diphenylmethane-diisocyanate in a hot water bath at 45°C and put it into storage tank A. Tank B, 1,4-butanediol is melted in a hot water bath at 60°C and put into storage tank C. After mixing the materials evenly according to the formula table, use a metering pump to inject them into the mixing head respectively, and the high-speed rotating rotor will mix them evenly. Injected on the conveyor belt, the material is solidified into sheets through the drying tunnel, the sheets are broken or pelletized, and sent to the extruder for secondary granulation at 110°C, at a temperature of 110°C and a pressure of -0.09MPa~ - 0.1MPa drying machine post-aging for 6h, drying in a dehumidification drying tower ...
Embodiment 2
[0035] The ratio of raw materials for thermoplastic polyurethane elastomer film, in parts by mass:
[0036]
[0037]
[0038] Preparation process: melt polyester polyol with a relative molecular weight of 2000 in a hot water bath at 90°C and put it into storage tank A; melt 4,4'-diphenylmethane-diisocyanate in a hot water bath at 43°C and put it into storage tank A. In tank B, melt 1,4-butanediol in a hot water bath at 65°C and put it into storage tank C. Mix the materials evenly according to the formula table and then inject them into the mixing head with a metering pump, and mix them evenly with the high-speed rotating rotor , injected on the conveyor belt, the material is solidified into sheets through the drying tunnel, the sheets are broken or pelletized, and sent to the extruder for secondary granulation at 110°C, at a temperature of 105°C and a pressure of -0.09MPa ~-0.1MPa drier post-aging for 6 hours, and drying in a dehumidification drying tower at 120°C until ...
Embodiment 3
[0041] The ratio of raw materials for thermoplastic polyurethane elastomer film, in parts by mass:
[0042]
[0043]
[0044]Preparation process: Melt polyester polyol with a relative molecular weight of 3000 in a hot water bath at 95°C and put it into storage tank A, and put 4,4'-diphenylmethane-diisocyanate into tank A after melting it in a hot water bath at 45°C Storage tank B, melt 1,4-butanediol in a hot water bath at 75°C and put it into storage tank C, mix the materials evenly according to the formula table, then inject them into the mixing head with a metering pump, and mix them with the high-speed rotating rotor Uniform, injected on the conveyor belt, the material is solidified into sheets through the drying tunnel, the sheets are broken or pelletized, and sent to the extruder for secondary granulation at 110°C, at a temperature of 100°C and a pressure of -0.09 MPa~-0.1MPa drier post-cure for 6h, and dry in a dehumidification drying tower at 110°C until the wate...
PUM
| Property | Measurement | Unit |
|---|---|---|
| tensile yield strength | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| elongation | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More