Enhanced Thermal Conductivity in Polyimide/Silver Particle Composite Films Based on Spontaneous Formation of Thermal Conductive Paths
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- Murakami Tomoya
- Department of Chemistry and Materials Science, Tokyo Institute of Technology
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- Ebisawa Kazuaki
- Corporate R&D Center, Sumitomo Bakelite Co., Ltd.
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- Miyao Kenji
- Corporate R&D Center, Sumitomo Bakelite Co., Ltd.
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- Ando Shinji
- Department of Chemistry and Materials Science, Tokyo Institute of Technology
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A series of polyimide (PI)/silver composite films incorporating μm-sized metallic silver particles (Ag-MPs) were prepared using matrices of sulfur- (SD), fluorine- (TF), and silicon-containing (SIM) PIs as well as an immiscible blend of SD- and TF-PIs (b-SF). The thermal conductivity (λ⊥) of the composited films accords well with the calculated value (λcal) based on the Bruggeman model below the particle contents (φ) of 30 vol%, whereas the composite films of SD/Ag and b-SF/Ag exhibited extraordinarily larger λ⊥ values than λcal in the range of φ>30 vol%. Moreover, the λ⊥s of SD/Ag films with uniform dispersion of Ag-MPs are almost equivalent to those of b-SF/Ag films in which Ag-MPs are selectively dispersed in the SD phase. In contrast, the λ⊥s of SIM/Ag films with homogeneous dispersion accord well with the λcal and much smaller than those of SD/Ag and b-SF/Ag. These facts indicate that effective thermal conductive paths were spontaneously generated in SD/Ag films as well as in b-SF/Ag films.
収録刊行物
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- Journal of Photopolymer Science and Technology
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Journal of Photopolymer Science and Technology 27 (2), 187-191, 2014
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詳細情報 詳細情報について
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- CRID
- 1390282679302558336
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- NII論文ID
- 130004678337
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- NII書誌ID
- AA11576862
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- ISSN
- 13496336
- 09149244
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- NDL書誌ID
- 025604154
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
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