4성분 무전해도금(Co/Ni/P/Mn)의 특성 및 부식거동

허호; Ho Hur

Clean Technology, Vol.20, No.2, 136-140, June, 2014

Export Citation

4성분 무전해도금(Co/Ni/P/Mn)의 특성 및 부식거동

Characteristics and Corrosion Behaviors of Quaternary (Co/Ni/P/Mn) Electroless Plating

허호^†

목원대학교 소방안전관리학과, 대전광역시 서구 도안북로 88

Ho Hur^†

Department of Fire Safety Management, Mokwon University, 88 Doanbuk-ro, Seo-gu, Daejeon 302-802, Korea

E-mail:

초록

본 연구에서 폴리프로필렌을 모재로 사용하여 Co/Ni/P/Mn 4가지 금속을 무전해도금 방법으로 코팅하였다. 이 때 도금욕의 시약의 양을 조절함으로써 폴리프로필렌 위에 도금된 금속의 조성을 다르게 조정하였다. 이러한 조건으로 만들어진 도금 금속에 대하여 두께, 전기적 표면 저항, 주사형 전자현미경을 사용한 표면상태, 에너지 분산형 분석기를 통한 금속조성을 측정하였다. 인 함량이 높을수록 전지저항이 커지는 것이 관찰되어 인 함량과 전지전도성간의 상관성이 있는 것이 관찰되었다. 또한 코팅 금속의 수용액에서의 부식성을 3.5 wt% 염화나트륨 용액과 5.0 wt% 황산용액에서 비교한 결과 인을 많이 포함할수록 내식성이 강함을 알 수 있었다.

The quaternary alloy (Co/Ni/P/Mn) coatings were prepared using electroless plating on the polypropylene. Compositions of the quaternary alloys (Co/Ni/P/Mn) were controlled by the amount of agents. The composition by EDS, morphology with SEM, film thickness, and surface electrical resistance of the samples were measured. Higher phosphorous content samples give larger electric resistance, thus a relationship is admitted between P content and electric resistance. The corrosivity of the coatings were evaluated by electrochemical methods in the 3.5 wt% NaCl and 5.0 wt% H2SO4 solutions, respectively. It was concluded that phosphorous addition enhances resistivity in the corrosion.

Keywords:Electroless plating;Quaternary metal coating;Corrosion;Surface

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[1] Ashassi-Sorkhabi H, Rafizadeh SH, Surf. Coat. Technol., 176(3), 318 (2004)

[2] Palaniappa M, Seshadri SK, “Structural and Phase Transformation Behaviour of Electroless Ni-P and Ni-W-P deposits,” Master Sic. Eng. A. Struct. Mater. Prop. Microstruct. Process., 460-461, 638-644 (2007)

[3] Balaraju JN, Narayanan TSNS, Seshadri SK, Mater. Res. Bull., 41(4), 847 (2006)

[4] Balaraju JN, Narayanan TSNS, Seshadri SK, J. Appl. Electrochem., 33(9), 807 (2003)

[5] Sha W, Pan JS, J. Alloy. Compd., 182, 1 (1992)

[6] Sha W, J Alloy. Compd., 322, 17 (2001)

[7] Keong KG, Sha W, Mahnov S, Surf Coat. Technol., 168, 263 (2003)

[8] Hu CC, Bai A, Mater. Chem. Phys., 77(1), 215 (2003)

[9] Garcia-Alonso MC, Escudero ML, Lopez V, Macias A, Corros. Sci., 38, 515 (1996)

[10] Revesz A, Lendvai J, Loranth J, Padar J, Bakonyi I, J. Electrochem. Soc., 148, 715 (2001)

[11] Balaraju JN, Rajam KS, Surf. Coat. Technol., 195, 154 (2005)

[12] Bo-Ping Z, Habazaki H, Kawashima A, Asami K, Hashimoto K, Corros. Sci., 33, 667 (1992)

[13] Osaka T, Yamazaki H, Saito I, Kawaguchi J, J. Electrochem. Soc., 136(11), 3418 (1989)

[14] Liu Y, Zhao Q, Appl. Surf. Sci., 228(1-4), 57 (2004)

[15] Georgieva J, Kawashima S, Armyanov S, Valova E, Hubin A, Koyama Y, Steenhaut O, Haydu J, Delpancke JL, Tsacheva T, J. Electrochem. Soc., 152, 783 (2005)

[16] Bangwei Z, Haowen X, Xiewen X, Metal Fishing, 97, 35 (1999)

[17] Balaraju JN, Rajam KS, Surf. Coat. Technol., 195, 154 (2005)

[18] Brenner A, Couch DE, Williams EK, J. Res. Nat. Bur. Stand., 44(1), 109 (1950)

[19] Pearlstein F, Weightman RF, Electrochem. Technol., 427, 6 (1968)

[20] Wang L, Guiffang L, Yuan X, Zhang B, Zhang J, Surf. Coat. Technol., 126, 272 (2000)

[21] Schwartz M, Mallory GO, J. Electrochem. Soc., 123, 606 (1976)

[22] Onho I, Wakabayashi O, Haruyama S, J. Electrochem. Soc., 132, 2323 (1985)