Phase-transition energy-storage microcapsules and their preparing process |
Title: |
Phase-transition energy-storage microcapsules and their preparing process |
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Application Number: |
200610060588 |
Application Date: |
2006/05/08 |
Announcement Date: |
2006/10/11 |
Pub. Date: |
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Publication Number: |
1844269 |
Announcement Number: |
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Grant Date: |
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Granted Pub. Date: |
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ApplicationType: |
Invention |
State/Country: |
94[China|shenzhen] |
IPC: |
C09D 5/02, B01J 13/02 |
Applicant(s): |
Graduate School at Shenzhen, Tsinghua University |
Inventor(s): |
Tang Guoyi, Lu Gang, Miao Chunyan, Yao Youwei, Weng Duan |
Key Words: |
Phase-transition, energy-storage, microcapsules, preparing process |
Abstract: |
The phase-change storage microcapsule consists of capsule wall and phase-change material covered by it, in which the capsule wall is silicon dioxde deposit with 20-65 % of the total mass of the microcapsule and phase-change material with 80-35 % of the total mass of the microcapsule. The method for preparation of phase-change storage microcapsule includes: adding 0.5-3 parts of surface activator into finite quantities of distilled water, after the heating and the dissolution, then adding 4-12 parts of phase-change storage materials and 0-2 parts of cosurfactants, emulsifying under a condition of high-velocity agitation to obtain the lacte emulsion dissolving the 3-10 parts of sodium silicate into finite quantities of distilled water, adding finite quantities of 1-2 parts of precipitant A under a condition of agitation to obtain sodium silicate prepolymer slowly adding the emulsion into the said sodium silicate prepolymer, then adding 2-10 parts of precipitant B, placing the said mixture into a water bath to react for 3-5 hours, after the filtration and the scouring, obtaining the phase-change storage microcapsule. |
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Last Update |
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2008-4-17 |
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Selected patents owned by Tsinghua University filed in 2005 are loaded. |
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2008-3-31 |
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Selected patents owned by Tsinghua University filed in 2006 and 2007 are load. |
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