A biodegradable polyurethane releasing agent and a preparing method thereof
A biodegradable polyurethane technology, applied in the field of high-resolution additives, can solve the problems of inconspicuous demoulding effect and high cost, and achieve good heat insulation effect, low cost and good demoulding effect
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Embodiment 1
[0032] A biodegradable polyurethane release agent, in parts by weight, comprises the following components:
[0033] 10 parts of natural wax liquid, 20 parts of amino silicone oil emulsion,
[0034] 5 parts of polydimethylsiloxane emulsion,
[0035] 1 part of silica airgel, 2 parts of other additives,
[0036] 20 parts of deionized water.
[0037] Its preparation method comprises the following steps:
[0038] A preparation method of biodegradable polyurethane release agent, comprising the following steps:
[0039] (1) 10 parts of natural wax liquid, 5 parts of polydimethylsiloxane emulsion, 20 parts of amino silicone oil emulsion and deionized water were mixed and stirred evenly, and ultrasonicated for 2 hours at a power of 500W to obtain a mixed emulsion;
[0040] (2) Transfer the mixed emulsion obtained in step (1) to an autoclave, add 1 part of silica airgel and 2 parts of other additives, seal, heat up to 40°C, and ultrasonicate in a water bath for 40 minutes to obtain ...
Embodiment 2
[0042] A biodegradable polyurethane release agent, in parts by weight, comprises the following components:
[0043] 20 parts of natural wax liquid, 30 parts of amino silicone oil emulsion,
[0044] 10 parts of polydimethylsiloxane emulsion,
[0045] 8 parts of silica airgel, 5 parts of other additives,
[0046] 30 parts of deionized water.
[0047] Its preparation method comprises the following steps:
[0048] A preparation method of biodegradable polyurethane release agent, comprising the following steps:
[0049] (1) 20 parts of natural wax liquid, 10 parts of polydimethylsiloxane emulsion, 30 parts of amino silicone oil emulsion and deionized water were mixed and stirred evenly, and ultrasonicated for 5 hours at a power of 800W to obtain a mixed emulsion;
[0050] (2) Transfer the mixed emulsion obtained in step (1) to an autoclave, add 8 parts of silica airgel and 5 parts of other additives, seal it, raise the temperature to 60°C, and ultrasonicate in a water bath for ...
Embodiment 3
[0052] A biodegradable polyurethane release agent, in parts by weight, comprises the following components:
[0053] 12 parts of natural wax liquid, 22 parts of amino silicone oil emulsion,
[0054] 6 parts of polydimethylsiloxane emulsion,
[0055] 2 parts of silica airgel, 3 parts of other additives,
[0056] 22 parts of deionized water.
[0057] Its preparation method comprises the following steps:
[0058] A preparation method of biodegradable polyurethane release agent, comprising the following steps:
[0059] (1) 12 parts of natural wax liquid, 6 parts of polydimethylsiloxane emulsion, 22 parts of amino silicone oil emulsion and deionized water were mixed and stirred evenly, and ultrasonicated at a power of 550W for 2.5 hours to obtain a mixed emulsion;
[0060] (2) Transfer the mixed emulsion obtained in step (1) to an autoclave, add 2 parts of silica airgel and 3 parts of other additives, seal it, heat up to 45°C, and ultrasonicate in a water bath for 45 minutes to ...
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