알루미늄 입자 첨가에 따른 무기아연페인트 방식성능

목차

Introduction

Experimentals

Results and discussion

Conclusions

Reference

본문내용

lvanic protections. Until now Al added Zn-rich paint system maintain good anti-corrosion protection(Fig. 9).
Conclusions
1. The Al pigments can hold the Zn corrosion products in the Al valleys and increase the barrier effect of the coating film even under a severe corrosive environment.
2. Both flake and spherical powder type Al pigments are same effective on the anti-corrosion property.
3. Two coat system of Zn type inorganic paints is proposed for more effective anti-corrosion properties under a severe corrosion attack.
Reference
1) Protective coatings, Chap.18 silicate resins pp279
2) SSPC, Good painting practice, steel structures Painting manual, Vol. 1 pp131 1983
3) D. Pereira, corrosion Sci. vol. 30, No 11 pp 1135 1990
4) Ernesto Montes, J. of coatings & tech. Vol.65, No 821 pp79 Jun.1993
5) J. E Cho Internal report. 1993
C2H5
Ⅰ
O OH
Ⅰ acid Ⅰ
C2H5 - O - Si - O - C2H5 ╂ H2O -----→ C2H5 - O - Si - OH ╂2C2H5OH
Ⅰ Ⅰ
O O
Ⅰ Ⅰ
C2H5 C2H5
in manufacturing
Zn Zn
Ⅰ Ⅰ
O O
Ⅰ Ⅰ
╂ Zn ╂ moisture(H2O) --→ -O - Si - O - Si - O -
Ⅰ Ⅰ
O O
Ⅰ Ⅰ
Zn Zn
Ⅰ Ⅰ
O O
Ⅰ Ⅰ
- Si - O - Si -
Ⅰ Ⅰ
O O
Ⅰ Ⅰ
Zn Zn
Inorganic Zn
silicate polymer
Fig. 1 The formation of Zn silicate film in Zn-rich paint

키워드

알루미늄 입자 첨가,   무기아연페인트 방식