| Introduce how to debug the hardness of polyurethane rubber wheels
Introduce how to debug the hardness of polyurethane rubber wheels.
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CREATED:
Dec 09, 2020
Introduce how to debug the hardness of polyurethane rubber wheels
How to debug the hardness of polyurethane rubber wheels:
Generally speaking, polyurethane rubber wheels are cast, and the hardness is generally set by the raw material formula. If you want to increase the hardness, you can consider adding fillers such as ultrafine powder, but the amount of addition is limited, otherwise the viscosity will be large, the bubbles will not be easy to eliminate, and the hardness The increase is limited, 1 to 2 degrees is very good, and the transparency decreases. If it becomes soft, you can consider adding a plasticizer, such as DMEP, etc., the hardness will decrease, the fixing time will be extended, and the product performance will also decrease. Therefore, the best solution is to customize materials with suitable hardness from the prepolymer manufacturer.
Some use thermoplastic polyurethane elastomers (ie TPU) to produce rubber wheels. Fillers are used to increase the hardness, and plasticizers are used to reduce the hardness. In the same way, the product performance will be sacrificed.
How to debug the hardness of polyurethane rubber wheels:
Generally speaking, polyurethane rubber wheels are cast, and the hardness is generally set by the raw material formula. If you want to increase the hardness, you can consider adding fillers such as ultrafine powder, but the amount of addition is limited, otherwise the viscosity will be large, the bubbles will not be easy to eliminate, and the hardness The increase is limited, 1 to 2 degrees is very good, and the transparency decreases. If it becomes soft, you can consider adding a plasticizer, such as DMEP, etc., the hardness will decrease, the fixing time will be extended, and the product performance will also decrease. Therefore, the best solution is to customize materials with suitable hardness from the prepolymer manufacturer.
Some use thermoplastic polyurethane elastomers (ie TPU) to produce rubber wheels. Fillers are used to increase the hardness, and plasticizers are used to reduce the hardness. In the same way, the product performance will be sacrificed.
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