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A platform for research: civil engineering, architecture and urbanism
To provide a novel acoustic transmissive material that can reduce variations in acoustic transmission between lots, and in addition, achieves further reduction of pop noise.SOLUTION: Provided is an acoustic transmissive material formed by entangling oxidation-treated SUS fibers with each other, the oxidation-treated SUS fibers being obtained by subjecting SUS fibers to an oxidation treatment, in which the respective components in the SUS fibers and the oxidation-treated SUS fibers have the following relations: (1) the atomic concentration of an Fe oxidation component at the surface of the oxidation-treated SUS fibers>the atomic concentration of an Fe oxidation component at the surface of the SUS fibers; (2) the depth at which the atomic concentration of the Fe component in the oxidation-treated SUS fibers becomes higher than the atomic concentration of the Fe oxidation component>the depth at which the atomic concentration of the Fe component in the SUS fibers becomes higher than the atomic concentration of the Fe oxidation component; and (3) the largest atomic concentration spot depth of a Cr oxidation component in the oxidation-treated SUS fibers>the largest atomic concentration spot depth of a Cr oxidation component in the SUS fibers.SELECTED DRAWING: Figure 1
【課題】音響透過のロット間でのばらつきを低減することができ、加えてポップノイズの更なる低減を実現する新規な音響透過性材料を提供する。【解決手段】ＳＵＳ繊維を酸化処理することにより得られた酸化処理ＳＵＳ繊維が互いに交絡してなる音響透過性材料であって、ＳＵＳ繊維及び前記酸化処理ＳＵＳ繊維における各成分が下記の関係にある。（１）酸化処理ＳＵＳ繊維の表面におけるＦｅ酸化成分の原子濃度＞ＳＵＳ繊維の表面におけるＦｅ酸化成分の原子濃度。（２）酸化処理ＳＵＳ繊維におけるＦｅ成分の原子濃度がＦｅ酸化成分の原子濃度よりも高くなる深度＞ＳＵＳ繊維におけるＦｅ成分の原子濃度がＦｅ酸化成分の原子濃度よりも高くなる深度。（３）酸化処理ＳＵＳ繊維におけるＣｒ酸化成分の最大原子濃度地点深度＞ＳＵＳ繊維におけるＣｒ酸化成分の最大原子濃度地点深度。【選択図】図１
To provide a novel acoustic transmissive material that can reduce variations in acoustic transmission between lots, and in addition, achieves further reduction of pop noise.SOLUTION: Provided is an acoustic transmissive material formed by entangling oxidation-treated SUS fibers with each other, the oxidation-treated SUS fibers being obtained by subjecting SUS fibers to an oxidation treatment, in which the respective components in the SUS fibers and the oxidation-treated SUS fibers have the following relations: (1) the atomic concentration of an Fe oxidation component at the surface of the oxidation-treated SUS fibers>the atomic concentration of an Fe oxidation component at the surface of the SUS fibers; (2) the depth at which the atomic concentration of the Fe component in the oxidation-treated SUS fibers becomes higher than the atomic concentration of the Fe oxidation component>the depth at which the atomic concentration of the Fe component in the SUS fibers becomes higher than the atomic concentration of the Fe oxidation component; and (3) the largest atomic concentration spot depth of a Cr oxidation component in the oxidation-treated SUS fibers>the largest atomic concentration spot depth of a Cr oxidation component in the SUS fibers.SELECTED DRAWING: Figure 1
【課題】音響透過のロット間でのばらつきを低減することができ、加えてポップノイズの更なる低減を実現する新規な音響透過性材料を提供する。【解決手段】ＳＵＳ繊維を酸化処理することにより得られた酸化処理ＳＵＳ繊維が互いに交絡してなる音響透過性材料であって、ＳＵＳ繊維及び前記酸化処理ＳＵＳ繊維における各成分が下記の関係にある。（１）酸化処理ＳＵＳ繊維の表面におけるＦｅ酸化成分の原子濃度＞ＳＵＳ繊維の表面におけるＦｅ酸化成分の原子濃度。（２）酸化処理ＳＵＳ繊維におけるＦｅ成分の原子濃度がＦｅ酸化成分の原子濃度よりも高くなる深度＞ＳＵＳ繊維におけるＦｅ成分の原子濃度がＦｅ酸化成分の原子濃度よりも高くなる深度。（３）酸化処理ＳＵＳ繊維におけるＣｒ酸化成分の最大原子濃度地点深度＞ＳＵＳ繊維におけるＣｒ酸化成分の最大原子濃度地点深度。【選択図】図１
ACOUSTIC TRANSMISSIVE MATERIAL
音響透過性材料
SANO TAKAYUKI (author)
2019-08-22
Patent
Electronic Resource
Japanese
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