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Study on the mechamism of ice adhesion

Research Project

Project/Area Number 08650060
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied physics, general
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

HORIGUCHI Kaoru  Institute of Low Temperature Science, Hokkaido Univ., Asso.Pro., 低温科学研究所, 助教授 (60001658)

Co-Investigator(Kenkyū-buntansha) MIZUNO Yukiko  Institute of Low Temperature Science, Hokkaido Univ., Asso.Pro., 低温科学研究所, 助教授 (10002461)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1998: ¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 1997: ¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 1996: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsAdhesive strength / Hydrophobic / Contact angle / Unfrozen water / Surface roughness / Cohesive strength
Research Abstract

Many works have been done on the adhesive properties of ice from the point of view of mechanics, basing upon the general view that substances with which water forms a large contact angle adhesive less to ice than those which show a small contact angle. However, we found that snow cover on glass slide well compared with Teflon near 0゚C.In order to make clear this phenomenon, shear experiment for ice adhesion on glass and Teflon with smooth surface were carried out in the temperature range of - 1゚C to -15゚C.Force and energy were supplied to the ice by a driving motor through a steel rod and the load cell which has an elastic displacement of 6.5 mu m per 10 kgw. There are two types of failure in a stress-time curve, that is, brittle failure and viscous failure. Teflon showed only the brittle failure. The other side, the failure type of glass is brittle at temperature lower than about -7゚C, and is viscous at temperature higher than -7゚C.The magnitude of shear strength of glass is larger than that of Teflon at temperature lower than about -5゚C, but this relationship reversed at temperature higher than -3゚C.Adhesion work for brittle failure is directly proportional to square of shear strength. Then, we got the relationship between shear strength and temperature for brittle failure and the relationship between the energy being supplied by a driving motor to make viscous failure and temperature.

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 吉田光則: "着雪氷防止に関する一考察" 寒地技術シンポジウム′98. VOL.14. 514-517 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yoshida: "study on prevent icing and snow accretion" Proc.'98 cold Region Technology Conferernce. Vol.14. 514-517 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 吉田光則・浅井則夫・堀口薫: "着雪氷防止に関する一考察" 寒地技術シンポジウム'98. Vol.14. 514-517 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Kamata,Y.Mizuno K.Horiguchi, M.Yoshida: "Ice adhension near the melting point" Proc.5th Intl.Symp.on Thermal Engineering and Sciences for Cold Regions. 453-458 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 鎌田 慈、水野 悠紀子 堀口 薫: "氷のセン断付着力の推定方法について" 寒地技術シンポジウム'96. Vol.12,No.1. 422-425 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 鎌田 慈、堀口 薫: "氷のセン断付着力と粗さ(Rz)との関係について" 寒地技術シンポジウム'97. Vol.13. 543-546 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 水野 悠紀子、堀口 薫、吉田 光則、今野 克美他: "着雪氷防止塗料の開発と応用について" 寒地技術シンポジウム'97. Vol.13. 87-92 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Kamata.: "Ice adhesion near the melting point" Proc. 5th Intl. Symp. on Thermal Engineering and Sciences for Cold Regions. 453-458 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 鎌田 滋: "氷のセン断付着力の推定方法について" 寒地技術シンポジウム'96. Vol.12 No.1. 422-425 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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