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Anonymous users2024-02-16The ** of epoxy resin glue is about dozens of yuan per kilogram, the cheap one is more than ten or twenty yuan, and the expensive one is one or two hundred yuan. Different types of epoxy resin adhesives are also different. As far as the category is concerned, the classification of epoxy resin has not yet been unified, generally according to the strength, heat resistance grade and characteristics of classification, the main varieties of epoxy resin have 16 kinds, including general glue, structural glue, temperature-resistant glue, low-temperature glue, underwater, wet surface glue, conductive glue, optical glue, spot welding glue, epoxy resin film, styrofoam, strain glue, soft material adhesive, sealant, special glue, cured glue, civil construction glue 16 kinds.
The classification of epoxy resin adhesives in the industry also has the following divisions: 1. According to its main composition, it is divided into pure epoxy resin adhesive and modified epoxy resin adhesive; 2. According to its professional use, it is divided into machine....
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Anonymous users2024-02-15Epoxy vinyl resin and coatings: epoxy resin: mainly used as anti-corrosion coatings, metal primers and insulating paints.
Civil engineering materials are mainly used as epoxy floor paints, anticorrosive floors, epoxy mortars and concrete products, high-grade road and airport runways, rapid repair materials, reinforced foundation grouting materials, adhesives and coatings, etc.
Epoxy resin: mainly used as anticorrosive coatings, metal primers and insulating paints. Civil engineering materials are mainly used as epoxy floor paints, anticorrosive floors, epoxy mortars and concrete products, high-grade road and airport runways, rapid repair materials, reinforced foundation grouting materials, adhesives and coatings, etc.
Features::
Standard bisphenol A epoxy vinyl resin is a vinyl resin synthesized by the reaction of methacrylic acid and bisphenol A epoxy resin, which is easily soluble in styrene solution.
1. The double bonds at both ends of the molecular chain are extremely active, so that the vinyl resin can be cured quickly, and the use strength can be obtained quickly, and the polymer with high corrosion resistance is obtained.
2. Synthesized with methacrylic acid, the methyl group at the edge of the ester bond can play a protective role and improve the hydrolysis resistance.
3. The resin contains less ester bonds, 35-50% less per mole than chemical-resistant polyester (bisphenol A-fumarate UPR), which improves its alkali resistance.
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Anonymous users2024-02-14Epoxy vinyl resin and coating manufacturers:
1. Langfang Bocheng anticorrosive materials
Main Products: Glass Flake Cement, Epoxy Glass Flake Cement, Vinyl Glass Flake Cement, Resin, Glass Flake Coating.
2. Dacheng County Bowang insulation material ****
Main products: glass flake cement, glass flake coating, desulfurization tower anti-corrosion construction, sewage pool anti-corrosion construction.
3. Quanzhou Luojiang three-star coating resin
Main products: all kinds of chemicals; unsaturated polyester resins; Acrylic resin; putty resin; vinyl ester resins; Putty.
Tai'an Lizhan composite materials****
Main Products: Vinyl Resin, Glass Flake Coating, Glass Flake Cement, Sewage Pool Anticorrosion.
5. Shanghai Fuchen Chemical Jinan Sales Office
Main products: high-performance vinyl ester resin, (anti-corrosion, temperature-resistant, impact-resistant, ultra-low shrinkage, flame retardant, flexible special) high-performance insulating resin.
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Anonymous users2024-02-13Summary. Hello dear! Performance comparison, epoxy resin is good.
1. High mechanical properties. Epoxy resin has strong cohesion and dense molecular structure, so its mechanical properties are higher than that of general-purpose solid resins such as phenolic resins and unsaturated polyesters.
2. Strong adhesion. The epoxy resin curing system contains extremely active epoxy groups, hydroxyl groups, ether bonds, amine bonds, ester bonds and other polar groups, which give the epoxy cured material excellent adhesion to polar substrates such as cermets, glass, concrete, and wood.
3. The curing shrinkage is small. Generally 1%-2%. It is one of the varieties with the smallest curing shrinkage among thermosetting resins.
4. Good manufacturability. Epoxy resins do not produce low molecular weight volatiles when cured, so they can be molded at low pressure or by contact. It can be combined with various curing agents to intelligently create solvent-free, high-solid, powder coating and water-based coatings and other environmentally friendly coatings.
Which is better, vinyl or epoxy.
Hello dear! Performance comparison, epoxy resin is good 1, high mechanical properties. Epoxy resin has strong cohesion and dense molecular structure, so its mechanical properties are higher than that of general-purpose solid resins such as phenolic resins and unsaturated polyesters.
2. Strong adhesion. The epoxy resin curing system contains extremely active epoxy groups, hydroxyl groups, ether bonds, amine bonds, ester bonds and other polar groups, which give the epoxy cured material excellent adhesion to polar substrates such as cermets, glass, concrete, and wood. 3. The curing shrinkage is small.
Generally 1%-2%. It is one of the varieties with the smallest curing shrinkage among thermosetting resins. 4. Good manufacturability.
Epoxy resins do not produce low molecular weight volatiles when cured, so they can be molded at low pressure or by contact. It can be combined with various curing agents to intelligently create solvent-free, high-solid, powder coating and water-based coatings and other environmentally friendly coatings.
5. Excellent chemical resistance. Epoxy cured products have excellent chemical stability. Its resistance to alkali, acid, salt and other media corrosion is better than that of thermosetting resins such as unsaturated polyester resin and phenolic resin.
Vinyl resin 1, vinyl resin inherits the excellent characteristics of epoxy resin, curing and formability is better, can be dissolved in styrene and acrylic monomer. 2. The viscosity of the resin is low, it can be cured at room temperature, it is easy to operate, and the construction is not limited by the season. 3. It has excellent corrosion resistance, alkali resistance is similar to epoxy resin, acid resistance and oxidation resistance are similar to bisphenol unsaturated polyester resin.
Vinyl resins with high crosslinking density have good solvent resistance.
Polyphenol oxy tree refers to epoxy resins with molecular weights in the range of 100,000 to 450,000, which are called ultra-high molecular weight epoxy resins, also known as phenoxyl resins (phenoxyl resin).
Liaojing Technology will answer for you: the corrosion characteristics of steel structures The steel structure in the atmospheric environment is affected by sunlight, sand, rain, snow, frost and dew and temperature and humidity changes throughout the year, among which oxygen and moisture in the atmosphere are important factors causing the corrosion of outdoor steel structures, causing electrochemical corrosion. >>>More
Thermal conductivity of epoxy resin refers to the ability of a material to conduct heat per unit thickness at a unit temperature gradient. Epoxy resin is a polymer compound with excellent insulation properties and mechanical properties, which is widely used in electronics, electrical, aerospace and other fields. Epoxy resins have a low thermal conductivity, typically between w (m·k). >>>More
Regarding resin defoamers, you can use the epoxy resin defoamer developed by Yuheng Chemical, which is specially tailored for epoxy resin resin, with high compatibility, very low risk of surface defects, and can be used in systems that require transparency, especially for epoxy resin, unsaturated resin and vinyl resin system, which can be used for gelcoat, hand lay-up, jetting, fiber winding, casting, etc., with excellent cost performance, setting a new benchmark in the industry. In the solvent-free or high-viscosity system, the air mixed by mechanical force is often not easy to remove, with special interface properties, which can significantly inhibit the mixing of air in the early stage, reduce the production of bubbles, and help the escape and rupture of bubbles, so as to obtain a uniform and smooth surface, which can prevent shrinkage and porosity, and has an excellent effect on enhancing the gloss of the paint film. It has a good inhibition effect on the bubbles of high viscosity and high film thickness, especially the solvent-free high film thickness epoxy floor coating, suitable for the foam inhibition and deaeration of unsaturated polyester coatings, gelcoat, jetting, pultrusion, RTM, etc., which can reduce the occurrence of cavities and make the molded products have higher strength and flatness.
Low-strength cementitious. Epoxy coatings have lower substrate surface and bond strength than MPa, epoxy coatings occur after application, the lower part is not strong, and the forklift on the floor is lower. In the event of an emergency, a clasp is placed at the end of the paint. Coating. >>>More