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How to choose epoxy resin metallurgical anticorrosion?

Mar 19, 2019

How to choose epoxy resin metallurgical anticorrosion?

In the metallurgical industry, due to the complex corrosive medium in the production process, there are process pipelines, production equipment, and buildings and structures. The epoxy resin resin anti-corrosion application materials must fully consider the objective requirements of the production process, such as the strength of the medium. The concentration, temperature, and working state are factors such as static and dynamic, indoor and outdoor, and pressure, and other changes. The first point is to grasp the characteristics of the environment, and the second is to optimize the structural design. Suitable for non-metallic corrosion resistant materials in the corrosive chemical medium environment of the metallurgical industry. Epoxy vinyl resin is a relatively successful and effective material; epoxy vinyl resin material can be used for corrosion resistance on the ground and can be cured at room temperature. The adjustability is good. The vinyl ester resin is used as a highly corrosion-resistant new material for the demister and electrolytic cell materials. The main features are: room temperature curing, simple construction operation and good adjustability.

Vinyl ester resin is used as a highly corrosion-resistant new material for demister and electrolyzer materials. The main varieties are: CH-2 and CH-5, all of which have methacrylic epoxy structure; T-158 with methacrylic acid. Phenolic epoxy structure. Among them: CH-2 resin has excellent comprehensive performance, high corrosion resistance and alkali resistance; CH-5 resin has good toughness, anti-leakage and sealing, and the use temperature can reach 100 °C; T-158 resin has higher resistance. The temperature is 120 ° C in wet state and 150 ° C in dry state; T-158 resin has excellent corrosion resistance and is resistant to some solvents and oxidizing medium. It has the following characteristics: the production of corrosion-resistant whole resin floor, with light weight, high strength, seamless, low shrinkage characteristics; used for corrosion resistant block floor, masonry of equipment lining, hook (filling) mortar, glue stick Picking; acid, alkali, salt and partially oxidizing medium; high mechanical strength, can withstand large impact effects; excellent impermeability, wear resistance, easy to clean, decorative effect; light weight compared with bulk It can reduce the structural load and the overall cost is low.

It has a prominent effect on the surface protection of buildings and structures, and has a strong pertinence to the ground corrosion problems encountered by the metallurgical industry and the chemical industry. In the anti-corrosion structure design, the epoxy vinyl resin should be based on the rationality and scientificity of the structural design, which is the key to the durability of the protective structure. For example, the anti-corrosion structural layer design of the electrolytic cell uses the corrosion-resistant FRP layer FRP with the characteristics of light weight, high strength, good insulation temperature resistance, good construction processability and designability. On the one hand, the glass fiber is bonded into one whole. It plays the role of transmitting load, on the other hand, it gives various excellent comprehensive properties of FRP, including corrosion resistance. The composite use with felt structure can further improve the corrosion resistance level, such as surface felt and chopped strand felt. 0.5 to 1.4k/m2, called a resin-rich layer or a main corrosion-resistant layer, so the corrosion resistance of FRP mainly depends on the variety of corrosion-resistant resin.

The overall resin mortar floor is a technology that has been vigorously developed and actively promoted in foreign countries for nearly 20 years. The advent of low-shrinkage resin for the ground of CH vinyl ester floor has made the corrosion resistance of floor materials in China a technical grade and a good structural layer. For: surface layer clay, thickness about 1mm; resin mortar, thickness 4 ~ 6mm; 2 cloth 3 glue FRP insulation layer; resin primer 2; screed C20 fine stone concrete, thickness 30mm; cushion C15 concrete, thickness ≥ 120mm or base prefabricated reinforced concrete slab. Resin cement masonry acid-resistant brick structure is mainly used for environments with certain impact and pressure resistance requirements. Experts believe that the following structural layers can be used: surface layer acid-resistant brick, thickness 30-65mm; resin cement joint layer, thickness 4-6mm; 3 glue FRP insulation layer; resin primer material 2; pouring and leveling and finding slope layer C20 fine stone concrete ≥ 40mm; base layer precast reinforced concrete floor or cushion C15 concrete, thickness ≥ 120mm. Resin mortar masonry corrosion-resistant granite floor structure is mainly used for parts with high pressure resistance and impact resistance. The industry recommends grouting with granite resin cement, thickness 50~100mm; resin mortar masonry layer, thickness 5~10mm; 2 cloth 3 glue FRP insulation layer; resin primer material 2; leveling layer is structural layer.

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QuanZhou Neweco High Polymer Material Co.,Ltd.

Neweco is one of the leading unsaturated polyester resin manufacturers and     suppliers,widely used in automobiles, ships, rail transit, wind power    generation, pipe cans, heat and corrosion protection, building     materials, stone repair, sanitary ware, artificial stone and other     industries. Suitable for hand lay-up, spray, pultrusion, winding,     molding, vacuum introduction / RTM, casting and other molding    processes. Neweco Resin is committed to excellence and focuses on the    application  of composite materials to provide customers with    comprehensive  solutions.

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