The UV/PU dual-cured coating was formulated with epoxy acrylate resin/tripropylene glycol diacrylate (TPGDA) monomer by the weight ratio of 80/20, 3% dosage of benzil dimethyl ketal as a photoinitiator, and the NCO/OH mole ratio of 1.0. The aromatic polymeric diphenylmethane diisocyanate was ...
2. Preparation and application of low viscosity and high flexibility epoxy acrylate: Researchers have prepared low viscosity and high flexibility UV cured epoxy acrylate oligomers to address the issues of high brittleness, poor flexibility, and high viscosity of epoxy acrylate (EA), and applied them...
A wide range of urethane acrylates,polyester acrylates, amino acrylates andepoxy acrylates Specially-designed photo initiators and additives that enhance the performance of energy-cured coatings. Energy curable solutions forlow glossapplications ...
where Aacryl and 𝐴0acrylAacryl0 are the absorbance of the acrylate peak of the cured film and the uncured formulation, respectively. At the same time, Aref and 𝐴0refAref0 are the absorbances of the reference peak in the cured film and the uncured formulation, respectively. Figure 2....
The reactive diluents were isobornyl acrylate (IBOA) and triethyleneglycol divinyl ether (DVE-3). IBOA enhances the Tg of the polymer due to the site barrier effect, while DVE-3 improves the flexibility of the polymer owing to the presence of three ether bonds. Seven UV-cured PUA coatings ...
From disk drives to semiconductor manufacturing to automotive electronics to displays to printed circuit boards our comprehensive line of UV curing epoxies, acrylates, urethanes are leading the way in reducing labor/assembly costs. These products can be conveniently dispensed manually/automatically and req...
Urethane acrylates are used as binders in mono-cure and dual-cure technology as liquid, 100% systems, and also in UV-curing dispersions and powders. 10.24.3.4.3 Chemistry of urethane acrylates Urethane acrylates are produced by the direct addition of hydroxyalkylacrylates and polyols to diisocya...
From the standard UV-curable acrylates, to UV-curable epoxy, to dual-cure UV adhesives which also cure with activator, heat, moisture, or anaerobically with metal. Contact Permabond for assistance with product selection and process integration. Our team of sales, service, and technical specialists...
Acrylics are excellent for production coating because they are easy to apply and can be water-based as well as CFC solvent-based. The evaporation-cured acrylic coatings can be easily removed by many chlorinated solvents.Polyurethane coatingsare available in either single- or dual-component formulatio...
free-radical and cationic type UV-curable acrylate- and cycloaliphatic epoxy-functional silicone polymers and compatible photocatalysts have been developed7,8and have found commercial specialty market niches. Such coatings require organofunctional silicones that utilize expensive inputs, complex multistep synt...