A kind of improved molding method of etpu foam
A molding method and foam technology, applied in the field of ETPU foam molding, can solve the problems of high production cost and poor connection degree of ETPU particles, and achieve the effects of low production cost, improved appearance effect, and inconvenient cleaning.
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[0024] In order to further explain the technical solutions of the present invention, the present invention will be described in detail below through specific embodiments.
[0025] The present invention relates to a kind of improved molding method of ETPU foam, comprising the steps:
[0026] ① Immerse the TPU particles in a high-pressure fluid, so that the high-pressure fluid reaches a dissolution equilibrium in the TPU particles. The pressure of the high-pressure fluid is below 70 MPa and the temperature is below 70 °C; specifically, the lower the temperature, the longer the time to reach the dissolution equilibrium. , the lower the pressure of the high-pressure fluid, the longer it takes to reach the dissolution equilibrium, and the actual situation is set by the technician according to the actual situation of the factory;
[0027] ② Refrigerate the dissolved equilibrium TPU particles in a cold storage, so that the high-pressure fluid in the TPU particles still remains in the...
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