Hardening epoxy curing agent used after a value, it is characterized by the diversity of blending process. Through the use of different curing agents, modifiers, toughening agents and fillers or pigments, to the needs of the specific epoxy resin can be obtained, which greatly expands the application of epoxy resin, making it very broad application area. Many factors affect the use of epoxy resin, the key is: formulation design (such as what used resin, curing agent, auxiliary, curing process, etc.); correctly grasp the construction technology, environment, according to the specific circumstances of process equipment, pay attention to all the chain of use.
Epoxy resin used to the following issues:
1, the selected recipe.
2, surface treatment.
3, gel preparation.
4, the glue or potting.
5, the fixed gel.
6, solidified.
Formula depends on the use of different applications have different design. Formulation directly affects the products the results. Surface treatment is important, otherwise it will affect the bond strength. Should pay attention to first transfer adhesive resin, filler, diluent, etc. even after the transfer, and finally to fully reconcile with the curing agent uniformly. Glue on plastic or pay attention to minimize the entrainment of bubbles, especially when the best casting vacuum casting. This step of the adhesive gel stationary operation is very important because the viscosity of epoxy resin bonding system start small, need to be fixed on the surface of the material, do laminates should also exert pressure until the gel only after removal pressure. Curing operations must be in accordance with a given temperature and time, in order to achieve the desired effect cured.
Epoxy resin cured product has many advantages such as excellent mechanical properties, electrical insulation properties, good corrosion resistance, low shrinkage, high bond strength and easy operation. Thus widely used in coatings, adhesives, laminating materials, casting materials, encapsulation materials, preparation of impregnated materials ..., in machinery manufacturing, electrical electronics, transportation, petrochemical, construction, national defense played tremendous all departments role. With the application of the following departments to the development of epoxy resin system also made great progress:
Save energy and resources required Curing the energy needed for small; improve the operating environment, reduce and eventually eliminate pollution; improve labor intensity, improve production efficiency, improve product performance and meet the fine products, beautiful, practical, the price have to adapt to the market needs. To this end there can be a good low temperature curing and heat-resistant products, systems, capable of rapid curing under UV light curing system, no halogens, phosphorus, and antimony trioxide flame retardant castable environmental systems, rapid prototyping of extrusion drawing forming system, no solvent or water solvent paint system ... ...
In order to adapt to the changing market, whether plant or epoxy curing agents, additives production plant should be concerned about the application of the following sector-specific developments:
1. Paint
Currently the biggest users of epoxy resin is still paint, solvent-based epoxy coatings although many, but there have been substantial changes in product mix, from traditional solvent-based epoxy coatings change to powder coating, solvent coating, water-based coating or electrophoresis coating, light-cured coating. As the coatings industry, changes in product mix, on epoxy resins have had a great change. We all know that most of the conventional coating is hard epoxy resin as a raw material, and is solvent-free coatings, waterborne coatings, or electrophoretic coating, most non-curing epoxy coatings for hard resin material. Although the proportion of powder coating epoxy paint accounted for around one third of the whole, now most of the production of epoxy resins are used to process hard epoxy powder coating. Epoxy resin of the market hard in the paint industry occupies a small proportion do not, but the coating material on the market two-thirds of the amount of other larger and more should try to occupy it.
Automotive electrophoretic paint, weathering paint. Vessel, container, oil, gas pipelines in the heavy duty coating. Information material handling with light curing coatings. Etc. Applications, epoxy resin can be used towards solvent, water-based, low viscosity, weather resistance, fast curing requirements of the development. Thus, development of bisphenol F-type, alicyclic type, acrylic and epoxy resin, or their nitrogen-containing modified resin, curing agent matching is especially important.
The current rate of development of high technology products for all to see, but also want to make the appropriate high-tech services. Optical instruments, such as paint, display tube explosion-proof coatings, flooring coatings and other high-level requirements colorless and transparent epoxy resin, not only flexible but also resistant but also easy to cure. This requires a new corresponding epoxy coating systems.
2. Electrical, Electronics Industry
Electrical appliances, epoxy resins used in the electronics industry accounted for the second. Electrical equipment industry is moving in large-scale power generation, high-voltage transmission, the direction, large-scale nuclear power, hydroelectric power plant equipment has led to shame, let alone in the near future, wind power, geothermal power plant were constructed, the transformation of the national grid. These are more stringent demands made of epoxy resin, because most of them are outdoor applications such as transformers, insulators, wind flange, cable top, use the more demanding environment. Epoxy resin system required high purity and good weather resistance, low moisture absorption, resistance to salt spray, fire retardant, and integrated mechanical and electrical properties of good. This significant portion of the market occupied by foreign products, only a few can be a small amount of domestic supply. This should be our industry's potential market for epoxy resin.
Others, such as adhesive application in the construction industry speed the development of this not going to soon introduced.
As early as 1999, Science and Technology Commission of Jiangsu Province in the "nurture high-tech products in Jiangsu Province's implementation of the advice group," the notice clear focus on development of self-development ------ solid interface circuit module and solid state relays (SSR) VLSII epoxy molding compound formulation and production technology; electronic grade phenolic resin, epoxy resin production technology ;------ submicron IC production technology of epoxy molding compound key technologies. To do this we must not only do development work in this industry should pay close attention to the progress of related industries, to achieve coordinated development.
Epoxy resin used to the following issues:
1, the selected recipe.
2, surface treatment.
3, gel preparation.
4, the glue or potting.
5, the fixed gel.
6, solidified.
Formula depends on the use of different applications have different design. Formulation directly affects the products the results. Surface treatment is important, otherwise it will affect the bond strength. Should pay attention to first transfer adhesive resin, filler, diluent, etc. even after the transfer, and finally to fully reconcile with the curing agent uniformly. Glue on plastic or pay attention to minimize the entrainment of bubbles, especially when the best casting vacuum casting. This step of the adhesive gel stationary operation is very important because the viscosity of epoxy resin bonding system start small, need to be fixed on the surface of the material, do laminates should also exert pressure until the gel only after removal pressure. Curing operations must be in accordance with a given temperature and time, in order to achieve the desired effect cured.
Epoxy resin cured product has many advantages such as excellent mechanical properties, electrical insulation properties, good corrosion resistance, low shrinkage, high bond strength and easy operation. Thus widely used in coatings, adhesives, laminating materials, casting materials, encapsulation materials, preparation of impregnated materials ..., in machinery manufacturing, electrical electronics, transportation, petrochemical, construction, national defense played tremendous all departments role. With the application of the following departments to the development of epoxy resin system also made great progress:
Save energy and resources required Curing the energy needed for small; improve the operating environment, reduce and eventually eliminate pollution; improve labor intensity, improve production efficiency, improve product performance and meet the fine products, beautiful, practical, the price have to adapt to the market needs. To this end there can be a good low temperature curing and heat-resistant products, systems, capable of rapid curing under UV light curing system, no halogens, phosphorus, and antimony trioxide flame retardant castable environmental systems, rapid prototyping of extrusion drawing forming system, no solvent or water solvent paint system ... ...
In order to adapt to the changing market, whether plant or epoxy curing agents, additives production plant should be concerned about the application of the following sector-specific developments:
1. Paint
Currently the biggest users of epoxy resin is still paint, solvent-based epoxy coatings although many, but there have been substantial changes in product mix, from traditional solvent-based epoxy coatings change to powder coating, solvent coating, water-based coating or electrophoresis coating, light-cured coating. As the coatings industry, changes in product mix, on epoxy resins have had a great change. We all know that most of the conventional coating is hard epoxy resin as a raw material, and is solvent-free coatings, waterborne coatings, or electrophoretic coating, most non-curing epoxy coatings for hard resin material. Although the proportion of powder coating epoxy paint accounted for around one third of the whole, now most of the production of epoxy resins are used to process hard epoxy powder coating. Epoxy resin of the market hard in the paint industry occupies a small proportion do not, but the coating material on the market two-thirds of the amount of other larger and more should try to occupy it.
Automotive electrophoretic paint, weathering paint. Vessel, container, oil, gas pipelines in the heavy duty coating. Information material handling with light curing coatings. Etc. Applications, epoxy resin can be used towards solvent, water-based, low viscosity, weather resistance, fast curing requirements of the development. Thus, development of bisphenol F-type, alicyclic type, acrylic and epoxy resin, or their nitrogen-containing modified resin, curing agent matching is especially important.
The current rate of development of high technology products for all to see, but also want to make the appropriate high-tech services. Optical instruments, such as paint, display tube explosion-proof coatings, flooring coatings and other high-level requirements colorless and transparent epoxy resin, not only flexible but also resistant but also easy to cure. This requires a new corresponding epoxy coating systems.
2. Electrical, Electronics Industry
Electrical appliances, epoxy resins used in the electronics industry accounted for the second. Electrical equipment industry is moving in large-scale power generation, high-voltage transmission, the direction, large-scale nuclear power, hydroelectric power plant equipment has led to shame, let alone in the near future, wind power, geothermal power plant were constructed, the transformation of the national grid. These are more stringent demands made of epoxy resin, because most of them are outdoor applications such as transformers, insulators, wind flange, cable top, use the more demanding environment. Epoxy resin system required high purity and good weather resistance, low moisture absorption, resistance to salt spray, fire retardant, and integrated mechanical and electrical properties of good. This significant portion of the market occupied by foreign products, only a few can be a small amount of domestic supply. This should be our industry's potential market for epoxy resin.
Others, such as adhesive application in the construction industry speed the development of this not going to soon introduced.
As early as 1999, Science and Technology Commission of Jiangsu Province in the "nurture high-tech products in Jiangsu Province's implementation of the advice group," the notice clear focus on development of self-development ------ solid interface circuit module and solid state relays (SSR) VLSII epoxy molding compound formulation and production technology; electronic grade phenolic resin, epoxy resin production technology ;------ submicron IC production technology of epoxy molding compound key technologies. To do this we must not only do development work in this industry should pay close attention to the progress of related industries, to achieve coordinated development.
