SONG WON –VCI (TECHNICAL DATA)

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Presentation transcript:

SONG WON –VCI (TECHNICAL DATA) Volatile(Vapor) Corrosion Inhibitor (VCI) VCI Paper

Characteristics of VCI products What is VCI ? Forming a passive layer on the surface of the metal, which serves as a barrier preventing moisture, rust and corrosion. Characteristics of VCI products Long lasting,effective protection against corrosion Easy,clean and economical application options Easy storage Reduced processing time

VCI Mechanism prevent electrochemical reaction of metals with the environments Chemisorptions on the metal Completing with the metal ion Neutralizing and absorbing of the corrosive element Metal Corrosive element Neutralized element VCI Passive Film

What’s Corrosion? Destructive result of electrochemical reaction between a metal or metal alloy and environments Electrochemistry of corrosion in ferrous metal 2Fe + O2 + 2H2O -> 2Fe2+ + 4OH- -> Fe ( OH)2 2Fe(OH)2 + 2H2O + O2 -> 2Fe(OH)3 2Fe(OH)3 + Fe(OH)2 -> Fe3O4 + 4H2O 2Fe(OH)3 -> Fe2O3 +H2O

VCI Classification SWVCI 10 SWVCI 20 SWVCI 30 SWVCI 40 VCI PAPER VCI for Ferrous metal (SWVCI 10) VCI for Non-ferrous metal (SWVCI 20, SWVCI 30, SWVCI 40,) VCI PAPER SWVCI 10 Steel products, cold rolled coil &Mechanical device, Shadow mask, pure ferrous products SWVCI 20 Galvanized iron, Galvanized steel plate & multi-metal SWVCI 30 Copper &Copper alloy SWVCI 40 Copper Copper alloy coated steel & Radial cord VCI PAPER Coating on kraft paper impregnated with volatile corrosion inhibitors, then used to cover , wrap or metal surface

VCI paper Product Material Use VCI kraft paper PE VCI paper k.P + VCI -Ferrous Pure Ferrous Non-Ferrous Copper Copper/steel PE VCI paper PE+K.P+VCI OPP VCI PAPER OPP+PE+K.P+VCI CLOTH VCI PAPER PE+PE CLOTH+PE+K.P+VCI OPP CLOTH VCI PAPER OPP+PE+PE CLOTH+PE+K.P+VCI

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