Advanced control of pore space of hierarchical macroporous fine particles and evaluation of heat transfer characteristics at interface

2022 Fiscal Year Final Research Report

• Project/Area Number: 19H02500
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 27010:Transport phenomena and unit operations-related
• Research Institution: Hiroshima University
• Principal Investigator: Ogi Takashi 広島大学, 先進理工系科学研究科(工), 教授 (30508809)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: ナノ構造化微粒子 / 自己組織化 / 細孔制御 / エアロゾルプロセス / 熱移動特性

Outline of Final Research Achievements

In this research, among the particulate materials that are utilized as materials for all kinds of functional materials, the Principal Investigator has been independently developing porous particles with pores larger than 50 nm and obtained the following research results: 1) Development of a new synthesis method to improve productivity and fabrication of directly deposited films. 2) Proposal of a method to control the structure (pore diameter, number of pores, and particle size), 3) Proposal of a method to analyze the internal structure of the porous particles (interconnected pores), and 4) Improvement of the insulation properties of polymers by compositing porous particles with polymers.

Free Research Field

化学工学

Academic Significance and Societal Importance of the Research Achievements

本研究では、世界で初めて50nm以上の細孔を有するポーラス微粒子の気相直接堆積膜の作製法の開発、細孔構造の高度制御法の提案、ポーラス微粒子の内部構造（連通細孔）の解析手法の提案、ポーラス微粒子とポリマーの複合化（複合膜の作製）と断熱特性の向上を実現した。これら研究成果は、微粒子の内部構造が高度に制御されたポーラス微粒子の新たな知見となり、各種の機能性材料の素材として利用される可能性を拡充することに繋がる。