Qinhuangdao Minghan epoxy glass flake mastic high temperature glass flake manufacture

  Features and uses: glass flake is an indispensable and important raw material for the production of heavy-duty anti-corrosion coatings, pearlescent pigments and plastic products
When applied in the field of anti-corrosion, it can significantly improve the anti-corrosion performance of the coatings and prolong the service life of the objects; Used to make pearlescent pigments, the gloss of glass flake pearlescent pigments is much better than that of natural mica and synthetic mica, and has the functions of anti-corrosion and anti ultraviolet radiation; Used in the plastic field, it can increase the strength of plastic products, prevent the thermal deformation of precision parts made of thermoplastic plastics, and improve their spatial stability
The invention relates to a glass flake resin lined composite steel pipe and pipe fitting and a preparation method thereof
The composite steel pipe and pipe fitting are composed of a steel outer pipe and a glass flake resin lining
The glass flake resin is a cured product of a mixture of thermosetting resin, glass flakes and other additives
The composite steel pipe and pipe fitting have excellent corrosion resistance and mechanical properties, which are far better than 18— 8 stainless steel and ceramic lined steel pipes, and their production cost is only 30% and 50% of that of stainless steel and ceramic lined steel pipes
Performance characteristics:   1
Glass flakes can prevent the erosion of water vapor and chemical solvents on the substrate
The degree of chemical resistance of substrate or coating varies with the selected glass raw materials
The glass flakes composed of C-glass have excellent chemical resistance and durability
　  2
The resin layer is easy to crack and fall off under the condition of thermal shock due to its relatively large stretching coefficient compared with the base materials such as steel and cement, and the glass flake can be promoted into a thermal stable layer, which can prevent the cracking and falling off of the substrate
　  3
Good temperature resistance
The heat resistance of glass flake lining is 20-40 ℃ higher than that of similar resin coating, so it is commonly used in oil pipeline, hot water pipeline, heat-resistant chemical plant, etc
　  4
The coefficient of thermal expansion is small
　  5
The coating containing glass flakes is much harder than the epoxy or polyester resin layer without glass flakes, so it has high surface wear resistance 6
It has good compatibility and can form anti-corrosion coating with various resins
The strong impermeability of VEGF scale mastic is related to its material composition
Generally, VEGF scale mastic contains 10%-40% glass scales with different diameters
After the construction of the mastic, the flat glass scales are in parallel overlapping arrangement in the resin continuous phase, thus forming a dense impervious layer structure
The penetration of corrosive medium in the cured mastic must go through countless tortuous paths
Therefore, in the corrosion resistant layer with a certain thickness, the distance of corrosion penetration is greatly extended, which is objectively equivalent to effectively increasing the thickness of the corrosion resistant layer
At the same time, in the case of no glass flake reinforcement, there will be a large number of so-called “ Defects ”, Such as micropores, bubbles and other micro cracks, the existence of these defects will accelerate or accelerate the penetration process of corrosive medium
Once the medium penetrates into these defects, the penetration speed will be improved, and the area of matrix continuous phase contacting corrosive medium will also be increased, thus accelerating the physical penetration and chemical corrosion process
In VEGF glass scale mastic, Because the glass flakes arranged in parallel can effectively separate these “ Defects ”, Thus, the penetration rate of corrosive medium can be effectively inhibited