POLYURETHANE PHASE-CHANGE NANOCAPSULE, PHASE-CHANGE POLYURETHANE POURING SEALANT AND PREPARATION METHOD THEREFOR
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United States of America Patent
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Sep 19, 2024
app pub date -
May 20, 2024
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Nov 23, 2021
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Provided are a polyurethane phase-change nanocapsule, a phase-change polyurethane pouring sealant and a preparation method therefor. The polyurethane phase-change nanocapsule is a nanocapsule formed by coating a phase-change material with an amphiphilic block copolymer. The oleophilic end of the amphiphilic block copolymer is a polyurethane chain segment, and the hydrophilic end is a methoxy polyethylene glycol chain segment. The polyurethane phase-change nanocapsule is added, such that the two-component phase-change polyurethane pouring sealant has a temperature control advantage, and has an excellent enthalpy value and heat-conducting properties while maintaining a low viscosity. In the field of electronic engineering, particularly in the field of electronics needing temperature control, the pouring sealant has an application value.
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