High Quality for Water Based Polyurethane Over Paint - Synthesis Of UV Curable Waterborne Polyurethane Acrylate Coatings – JIYU

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High Quality for Water Based Polyurethane Over Paint - Synthesis Of UV Curable Waterborne Polyurethane Acrylate Coatings – JIYU Detail:

Synthesis Of Waterborne Polyurethane Acrylate

The oligomer in uv-wpua coating is wpua, which is the main part of the coating. Wpua is generally formed by reaction of polyisocyanate, diol and hydroxyl acrylate. Isocyanates include aromatic isocyanates, aliphatic isocyanates and alicyclic isocyanates, which affect the rigidity, weather resistance and yellowing resistance of wpua. Diols mainly include polyether diols and polyester diols, which affect the tensile strength, softness, heat resistance and hydrolysis resistance of wpua.
The – NCO group in the polyisocyanate reacts with the hydroxyl group of the diol to form an oligomer with isocyanate groups at both ends. 2. 2,2-dihydroxymethylpropionic acid (DMPA) is used as the diol to introduce hydrophilic groups into the oligomer, and 1,4-butanediol (BDO) is added for chain extension; 3. Hydroxyethyl acrylate (HEA) was used to introduce photo active groups containing unsaturated double bonds for UV curing. After the three-step reaction is completed, triethanolamine (teoa) is added for neutralization reaction, and finally water is added to emulsify it into lotion.
Other scholars have synthesized uv-wpua with excellent performance by using synthetic raw materials such as Polyhexylene glycol, isophorone diisocyanate, PETA, and dimethylbutyric acid (DMBA). Three kinds of wpua were synthesized from the prepared polyacrylate with carboxyl group in side chain, polyether polyol, isophorone diisocyanate and hydroxyethyl acrylate. After comprehensive investigation of physical test and application test, it is considered that the comprehensive performance of polyether wpua is better. Using toluene diisocyanate, polyhexanediol, 2,2-dihydroxymethylpropionic acid and hydroxyethyl methacrylate as raw materials, prepolymer was first synthesized, then triethylamine was added as neutralizing agent, and water was used as chain extender to disperse in water to form stable wpua lotion.

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We have been proud from the higher consumer gratification and wide acceptance due to our persistent pursuit of high quality both on product or service and service for High Quality for Water Based Polyurethane Over Paint - Synthesis Of UV Curable Waterborne Polyurethane Acrylate Coatings – JIYU , The product will supply to all over the world, such as: Cyprus, Sweden, Curacao, Our business activities and processes are engineered to make sure our customers have access to widest range of products with the shortest supply time lines. This achievement is made possible by our highly skilled and experienced team. We look for people who want to grow with us around the globe and stand out from the crowd. We now have people who embrace tomorrow, have vision, love stretching their minds and going far beyond what they thought was achievable.

Our company is named Jiangxi Jiyu New Material Co.,ltd. It is specialized in research, manufacturing and selling of Hydrophilic Chain-Extending Agent. For example, 2,2-BIS(Hydroxymethyl) propionic Acid (DMPA) and 2,2-BIS(Hydroxymethyl) butyric acid (DMBA). DMPA and DMBA are widely used in manufacturing of water-based paint, water-based tackiness agent, water-based printing ink and water-based leather finishing agent.

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