Preparation method for super macroporous polyurethane reticulated foam plastic
A technology of foamed plastics and polyurethane, which is applied in the field of preparation of super-large-porous polyurethane reticulated foamed plastics, can solve problems such as large-pored polyurethane reticulated foamed plastics, and achieve high safety effects
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[0019] The present invention will be described in detail below in conjunction with specific embodiments, where the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0020] Follow the steps below to prepare ultra-large pore polyurethane reticulated foam:
[0021] (1) Prepare raw materials consisting of the following components:
[0022] Polyols, isocyanates, silicone foam stabilizers, water, auxiliary blowing agents, crosslinking agents, cell openers, gel catalysts, colorants;
[0023] (2) The raw material is stored in a storage tank equipped with a constant temperature freezing device, and the temperature is kept constant;
[0024] (3) Add raw materials other than isocyanate to the mixing device at the same time and mix evenly within 3 seconds to obtain a mixed material;
[0025] (4) Open the isocyanate feeding valve, add the isocyanate to the mixture in the mixing...
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