A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
COLUMNAR HONEYCOMB STRUCTURE FILTER AND METHOD FOR MANUFACTURING THE SAME
To provide a columnar honeycomb structure filter with improved PM collecting performance.SOLUTION: In a columnar honeycomb structure filter, a plurality of first cells which extend from an inlet side bottom surface to an outlet side bottom surface and have a sealing part at the outlet side bottom surface, and in which the inlet side bottom surface is opened and a plurality of second cells which extend from the inlet side bottom surface to the outlet side bottom surface and have the sealing part at the inlet side bottom surface, and in which the outlet side bottom surface is opened are provided, and the plurality of the first cells and the plurality of the second cells are alternately arranged to be adjacent to each other with a porous partition wall in between. On a surface of each of the first cells, a porous film constituted of a plurality of particles is formed. In obtaining a frequency distribution between the particles by observing the porous film at a cross section in parallel to a film thickness direction and measuring a distance between the particles which is a distance in a direction perpendicular to a film thickness direction between the adjacent particles for the plurality of the particles, the distance (D90) between the particles of an accumulated ratio of 90% is 12.0 μm or less.SELECTED DRAWING: Figure 6
【課題】ＰＭ捕集性能が改善された柱状ハニカム構造フィルタを提供する。【解決手段】入口側底面から出口側底面まで延び、入口側底面が開口して出口側底面に目封止部を有する複数の第１セルと、入口側底面から出口側底面まで延び、入口側底面に目封止部を有し、出口側底面が開口する複数の第２セルとを備え、複数の第１セルと複数の第２セルは多孔質隔壁を挟んで交互に隣接配置されている柱状ハニカム構造フィルタであって、それぞれの第１セルの表面には、複数の粒子で構成される多孔質膜が形成されており、前記多孔質膜を膜厚方向に平行な断面で観察し、前記複数の粒子について、隣り合う粒子間の膜厚方向に垂直な方向の距離である粒子間距離を測定し、粒子間距離の度数分布を求めると、累積比率９０％となる粒子間距離（Ｄ９０）が１２．０μｍ以下である、柱状ハニカム構造フィルタ。【選択図】図６
COLUMNAR HONEYCOMB STRUCTURE FILTER AND METHOD FOR MANUFACTURING THE SAME
To provide a columnar honeycomb structure filter with improved PM collecting performance.SOLUTION: In a columnar honeycomb structure filter, a plurality of first cells which extend from an inlet side bottom surface to an outlet side bottom surface and have a sealing part at the outlet side bottom surface, and in which the inlet side bottom surface is opened and a plurality of second cells which extend from the inlet side bottom surface to the outlet side bottom surface and have the sealing part at the inlet side bottom surface, and in which the outlet side bottom surface is opened are provided, and the plurality of the first cells and the plurality of the second cells are alternately arranged to be adjacent to each other with a porous partition wall in between. On a surface of each of the first cells, a porous film constituted of a plurality of particles is formed. In obtaining a frequency distribution between the particles by observing the porous film at a cross section in parallel to a film thickness direction and measuring a distance between the particles which is a distance in a direction perpendicular to a film thickness direction between the adjacent particles for the plurality of the particles, the distance (D90) between the particles of an accumulated ratio of 90% is 12.0 μm or less.SELECTED DRAWING: Figure 6
【課題】ＰＭ捕集性能が改善された柱状ハニカム構造フィルタを提供する。【解決手段】入口側底面から出口側底面まで延び、入口側底面が開口して出口側底面に目封止部を有する複数の第１セルと、入口側底面から出口側底面まで延び、入口側底面に目封止部を有し、出口側底面が開口する複数の第２セルとを備え、複数の第１セルと複数の第２セルは多孔質隔壁を挟んで交互に隣接配置されている柱状ハニカム構造フィルタであって、それぞれの第１セルの表面には、複数の粒子で構成される多孔質膜が形成されており、前記多孔質膜を膜厚方向に平行な断面で観察し、前記複数の粒子について、隣り合う粒子間の膜厚方向に垂直な方向の距離である粒子間距離を測定し、粒子間距離の度数分布を求めると、累積比率９０％となる粒子間距離（Ｄ９０）が１２．０μｍ以下である、柱状ハニカム構造フィルタ。【選択図】図６
COLUMNAR HONEYCOMB STRUCTURE FILTER AND METHOD FOR MANUFACTURING THE SAME
柱状ハニカム構造フィルタ及びその製造方法
TAKADA DAIKI (author) / TSUCHIYA HIRONORI (author) / NAGAI JUNGO (author)
2024-10-11
Patent
Electronic Resource
Japanese
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