VCI paper is a special anti-rust packaging material made of special neutral paper as the base material, coated with different combinations of special substances-VCI, and after a series of post-processing.
It can be directly vaporized under normal temperature and pressure alone or attached to a suitable carrier.
VCI anti-corrosion paper in a sealed environment through its own adjustable continuous volatilization, so that any space gap in the operating unit will be filled with mixed gas containing VCI anti-corrosion factor, this gas will be adsorbed on the metal surface, forming Only one or a few molecules thick dense protective film layer.
Among the many materials in the packaging industry, VCI paper is a high-tech product, and its core technology is embodied in VCI.
VCI technology is a comprehensive technology integrating organic synthesis, physical chemistry, corrosion and protection, metal materials, paper processing, and polymer technologies.
Different VCI systems have great differences in environmental protection and applicability, which are reflected in products of various forms and functions.
Protection object: steel mill hot and cold rolled substrates and various coated plates.
Product form:
VCI is impregnated in plain weave neutral base paper for the purpose of rust prevention, and a single or double PE layer and braid layer are compounded on the neutral rust prevention base paper to achieve the purpose of waterproofing and increasing strength.
Protected metal range:
According to the material of the cold-rolled steel sheet, it is divided into VCI paper for the cold general plate, VCI paper for galvanized sheet, VCI paper for silicon steel plate, and VCI paper for tin plating. Strictly speaking, they cannot be mixed with each other.
Applications:
It is widely used in the storage, transportation, and anti-rust packaging of metallurgical cold-rolled plates such as cold general plates, galvanized plates, silicon steel plates, and tin plates.
When packaging, use PM, PC, PD structure fabric-reinforced VCI paper on the outer periphery, PF structure VCI paper for the inner core, and seal the overlap of the two materials with tape.
Then carry out the iron plastic board to protect the outer packaging material.
