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The Application Direction Of Epoxy Soybean Oil Coating Conversion

As raw materials with abundant resources, low cost, non-toxic, environment-friendly, thermal stability, light stability, and solvent resistance, Epoxy Soybean Oil (ESO) is widely used in PVC plasticizers, food packaging materials, and pharmaceutical products. Such as the production; with the paint industry to save resources, energy, reduce pollution and development, the application of epoxy soybean oil in the coating field is increasing. The research of epoxy soy oil for domestic coatings mainly focused on ultraviolet (UV) free radical curing epoxy oleoresin acrylate system. Some foreign researches also involved cationic curing systems, in addition to epoxy soy oil in other coating systems. There are also applications. The conversion of epoxidized soybean oil into compounds has achieved significant results in many areas of application.

Epoxy soybean oil has low viscosity and good molecular chain flexibility. It can be mixed into some common coating systems and used as a modifier to effectively improve the performance of the original system and reduce production costs. In addition, the epoxy soybean oil extract or a series of coatings prepared by converting the epoxy soybean oil into oil also exhibited good usability and the development prospect was very attractive. In low-VOC alkyd coatings, the addition of epoxidized soybean oil as a reactive diluent has shown that this is beneficial in reducing the drying time of the pigment; the addition of an epoxy soybean oil modifier to the ceramic-based coating is successful. A new type of organic-inorganic hybrid coating containing three gel-sol precursors (titania, bisacetylacetonato-bis-propoxide, and zirconium propoxide). The results showed that the organic phase was accompanied by rings in the organic phase. With the addition of oxygenated soybean oil, the cured film still showed excellent hardness and improved toughness, but at the same time there was a slight decrease in adhesion and impact strength.

The application of epoxy soybean oil after effective conversion is also the direction of development in recent years. Addition of epoxidized soybean oil and methylamine can be used as an anti-corrosion agent for paints. Studies have been made to react and then emulsify epoxidized soybean oil with methylamine, emulsified methylamine adducts at different concentrations and styrene/ Acrylic-based coatings were mixed to investigate the effect of different concentrations of methylamine adducts on the properties of the cured film; compared with the chromate anticorrosive pigments, the methylamine adducts were more economically effective, less polluting, and the mass fraction was The best corrosion resistance is 0.5%. Treat the epoxy soy oil with the same series of reagents (including some long-chain fatty acids) and then react with diisocyanate until the residual cyanate mass fraction is 1.8%. Stop the reaction and then add the appropriate amount of amino-alkane coupling agent to the prepolymer. With a small amount of methanol, an isocyanate-free moisture-curable polyurethane coating can also be obtained, which system is automatically catalyzed and does not require long-term exposure to moisture to obtain good performance.

The conversion of epoxidized soybean oil into a novel soybean oil phosphate polyhydroxyl compound and its application in paints have achieved results: The use of its ability to readily dissolve in water-based or solvent-based paints has resulted in the preparation of heat-curable water-soluble alcohols. Acid paint, and found that the coating curing conditions require low, strong adhesion, and has a low VOC content and excellent impact strength and hardness. The research results of soybean oil phosphate polyhydroxyl compounds have opened up a way for the coating industry to produce new coatings with high toughness and durability, and the manufacturing process is pollution-free, which is of great commercial development value. Domestic epoxy oleoresin acrylate and modified epoxidized soybean oil acrylate, the application of UV-curable inner coating of optical fiber is continuously advancing, epoxy oleoresin acrylate coating can be used as surface metallized film coating, specially suitable for manufacturing cardboard Varnish, varnish, wood varnish, pigment, etc. In today's environmental protection and energy-saving direction of the paint industry, the application of epoxy soybean oil, including various types of coating applications, will be further broadened.


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