The surface of the metal coat hooks products processing technology is introduced

by:DIgao     2020-06-17
As metal coat hooks processing and modification technology constantly improving, rapidly expanding application fields. For different application fields in the metal surface decoration, clothes hook material protection, improve the adhesive, such as performance requirements are increasing, but all kinds of metal structure and components of different clothing materials, the surface of the corresponding performance also have obvious difference. To adapt to the different applications of all kinds of surface treatment technology and the product arises at the historic moment. To adapt to the different need of surface treatment of metal clothes hook, has developed a variety of processing techniques. Commonly used technology is solvent cleaning ( Skim) , corona treatment, short wave ultraviolet radiation treatment, sandpaper, sandblasting processing, plasma etching, chemical etching, heat treatment, etc. According to different materials, often need to choose different treatment methods. Since most of the metal surface treatment method for selection of clothes peg low surface energy, many treatment methods, such as decoration, printing, spraying, etc are not directly applicable, and need for surface treatment in the first place. Metal clothes and adhesion of various material is finishing a key problem to be solved. Generally speaking, metal clothes hook adhesive performance related to material structure and composition. Structure affect the polyolefin material such as PP and PE, metal coat hooks low surface energy, usually only dyne. To achieve good adhesion, general requirement surface can not below dyne. Bonding test showed that PE bonding strength after the plasma treatment can improve The Times; After dealing with the chromic acid, adhesive performance about times can be improved. Through the same processing, PP after the ionization process date bonding strength increase, while after the chromate treatment can improve The Times. Why the chromate treatment effect of PP is so significant, while the PE or else? This is because the PP chain segment of each carbon atom has a methyl ( CH) 。 Methyl after oxygen ionization or chromate treatment vulnerable to carboxyl oxidation. And, even if only a few methyl oxidation and adhesion properties of PP and polarity also can because of the existence of carboxyl and significantly improved. But not for PE this group. , you can see that the chemical structure of polymer to surface treatment is one of the important factors must be considered.
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