• 专利标题:   Preparing enhanced thermal conductive phase change nanocapsule composite material, comprises e.g. mixing inorganic shell phase change nanocapsules, polydimethylsiloxane prepolymer and curing agent, stirring with high thermal conductivity filler e.g. alumina, curing, molding and de-molding.
  • 专利号:   CN114774086-A
  • 发明人:   LING Z, ZHANG Z, LI S, FANG X
  • 专利权人:   UNIV SOUTH CHINA TECHNOLOGY
  • 国际专利分类:   C09K005/06, C09K005/14
  • 专利详细信息:   CN114774086-A 22 Jul 2022 C09K-005/06 202283 Chinese
  • 申请详细信息:   CN114774086-A CN10390547 14 Apr 2022
  • 优先权号:   CN10390547

▎ 摘  要

NOVELTY - Preparing enhanced thermal conductive phase change nanocapsule composite material, comprises (1) preparing inorganic shell phase change nanocapsules by interfacial hydrolysis-polycondensation method, (2) adding the inorganic shell phase change nanocapsules, polydimethylsiloxane prepolymer and curing agent into a container for one-time stirring by a mixer, and adding high thermal conductivity filler and co-solvent with same quality of polydimethylsiloxane prepolymer, stirring for second time to obtain rubber compound, and (3) coating the rubber compound in a mold, placing it in a vacuum defoaming barrel and performing defoaming treatment and taking it out, allowing to stand for curing, molding and de-molding to obtain final product. USE - The enhanced thermal conductive phase change nanocapsule composite material is useful as thermal interface material (claimed). ADVANTAGE - The enhanced thermal conductive phase change nanocapsule composite material: has high thermal conductivity and heat storage capacity; utilizes inorganic shell phase-change nanocapsules to reduce the hardness of the polydimethylsiloxane-based composite material, which is more conducive to the bonding interface; is expected to fill the air gap; alleviates the thermal shock of the chip under high heat flux density; and ensures the chip and electronic devices to dissipate heat better. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for enhanced thermal conductive phase change nanocapsule composite material prepared by above method.