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What is epoxy resin

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Epoxy resins and epoxy resin adhesives are non-toxic, but many solvents are "toxic" because of the addition of solvents and other toxic substances during the preparation process. The domestic epoxy resin industry is adopting water-based modification to avoid additions. Way to maintain the "non-toxic" nature of the epoxy resin. Epoxy resin is generally used together with additives to obtain application value. Additives can be selected according to different uses. Commonly used additives are as follows:
(1) Curing agent
(2) Modifier
(3) Filler
(4) Thinner
(5) Others.
Among them, the curing agent is an indispensable additive. Whether it is used as an adhesive, coating, or casting material, the curing agent needs to be added, otherwise the epoxy resin cannot be cured. Due to the different performance requirements, there are also different requirements for additives such as epoxy resins, curing agents, modifiers, fillers, and thinners.

As an anti-corrosion material, epoxy resin not only has the characteristics of compactness, water resistance, good leakage resistance, and high strength, but also has strong adhesion, normal temperature operation, simple construction, and other good manufacturability, and the price is moderate. Anti-corrosion engineering using this kind of material generally includes FRP integral surface layer and isolation layer lined with resin compound, block surface layer paved with resin mastic and mortar, block surface layer of resin mastic jointing and grouting, resin Single and composite integral surface layer and isolation layer made of thin mortar or mortar, Plexiglas scale mortar surface layer, etc. Different types of materials are selected, and the final product function and applicable scope of anti-corrosion engineering will be very different. Experts said that in addition to being used alone, epoxy resins commonly used in anti-corrosion engineering can also be used in combination with unsaturated polyester resins, vinyl ester resins, phenolic resins, and furan resins to form a composite structure to give full play to their Strengths, reduce costs, improve product quality, and facilitate construction. It can also be modified with other resins to form modified resins. The methods of modification include physical and chemical methods. Epoxy coal tar is a more typical physical modification product of epoxy resin, and its performance is between the epoxy resin and coal tar. Physically modified resins generally account for 30-50% of the total amount of resins; after the resin is chemically modified, the performance of its products has undergone fundamental changes. Vinyl ester resins are essentially the most typical epoxy chemically modified resins. Sometimes two or more resin materials with better comprehensive performance are used, and different structures in different parts of the project are unified according to their characteristics. Construction in sequence can produce significant effects that are difficult to achieve with a single material.

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