This liquid version of epoxy resin is designed for application with brush or spray gun and cures to a hard, glossy finish in 2 hours. Liquid epoxy resin bonds strongly to most substrates including wood, metal, and glass, concrete and ceramic. It's especially suited for adhering natural stone like marble and slate. With good moisture resistance, it has excellent chemical resistance as well. Liquid epoxy resin resists alkalis and organic solvents and is unaffected by water immersion up to one year at room temperature. Liquid epoxy resin is easily sanded before curing; after curing, it has a very smooth surface ready for finishing.
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Uses of Liquid Epoxy Resin
Epoxy resin is a mixture of resin and hardener. The mixed liquid epoxy resin, compared with ordinary solid epoxy resin, has strong viscosity and excellent adhesive properties. The high temperature, hardening characteristics of liquid epoxies are different from that of solids.
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The curing process of liquid epoxy resins is also different from that of solid ones. In general, liquid epoxy resins can be cured at room temperature or in low-temperature heating because it doesn't require much heat for cure. Therefore, it's called hot melt adhesives. When people apply them on surfaces such as glass, plastic film or polystyrene plate which have been preheated at about 60°C, they will become tacky when heated by hot air blow or hot plates.
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Manufacturing process
Here is a liquid epoxy resin manufacturing process from raw materials to finished product. The equipment for liquid epoxy resin production are generally cylindrical tanks, and mixing-stirring devices which include: agitator, circulation impeller, turbine stirring or twin-shaft stirring (vertical or horizontal). For dispersing-emulsifying device, usually it is high shear mixer or reverse roll mill. Further you can use vacuum filter machine for final filtering.
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1) Raw Material Preparation Liquid epoxy resin raw material is acrylic ester, ethylene glycol and butanediol; each will be pumped into relevant vessels via pipeline.
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2) Acrylic Ester Gration when acrylic ester is grated with ethylene glycol and butanediol in reaction system, water produced during polymerization should be discharged out of reflux tank timely.
3) Acrylic Ester Polymerization Acrylic ester monomer will be heated up to 85°C then react with three batches of added chemicals within one hour reaction time at autogenous pressure.
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Market Outlook:
The global Epoxy Resin market size is anticipated to grow at a CAGR of 5.85%. Epoxy resins have a property of containing one more than one epoxy group per molecule and are thermosetting resins that make use of suitable cross-linking agents for higher reactivity. Epoxy resins are respected by being the largest raw material used for different chemical formulations. Highly conducive properties belonging to epoxy resins including high thermal stability, mechanical strength, moisture resistivity, adhesion, and heat resistance make epoxy resins as the resin of choice for several end-user applications such as laminates and insulators.
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Growing end-use industries including transportation, marine coatings, aerospace, electrical & electronic laminates, composites, and decorative powder coatings particularly in the Asia Pacific is also expected to impact the global market positively. Increasing research initiatives by key participants coupled with technology innovation in the field of modified resins is expected to create new avenues for industrial applications.
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