One-step synthesis of novel multifunctional silicone acrylate prepolymers for use in UV-curable coatings

Li, Xiaoquan; Bian, Fuping; Hu, Jiwen; Li, Shi; Gui, Xuefeng

doi:10.1016/j.porgcoat.2021.106601

Cited by 11 publications

(7 citation statements)

References 58 publications

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“…Li et al [16] used Karlsted (Pt ~ 2%) as a catalyst to obtain a siloxane-acrylate prepolymer by hydrosilylation of pentaerythritol tetraacrylate and hydrogen-terminated polydimethylsiloxane. As shown in Figure 5, the prepolymer was cured under ultraviolet light to obtain a transparent film with good hydrophobicity and antifouling properties.…”

Section: Hydrosilylationmentioning

confidence: 99%

The current research status and future prospects of fluoropolymer protective coating materials

Zhang,

Yang,

Chen

et al. 2024

International Conference on Optoelectronic Information and Functional Materials (OIFM 2024)

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The carbon-fluorine bond exhibits a low level of polarization, which gives the organic fluoropolymer coating material a distinctive property of reduced surface energy. As a result, it demonstrates exceptional resistance to both polar and nonpolar molecules and can resist the permeation and swelling of water, oil, and other liquids. The present paper provided a concise overview of three types of fluoropolymer coating materials based on acrylates, polysiloxanes, and nanoparticles. The unique chemical compositions or structures of fluoropolymer coating resulted in good hydrophobicity, oleophobicity, solvent resistance, antifouling and decay resistance, UV resistance, and self-cleaning capabilities. The present study introduced four preparation methods for fluoropolymer coating materials, including free radical polymerization, anionic polymerization, hydrosilylation, and click chemistry. At the same time, the film-forming methods of fluoropolymer coatings, such as temperature-controlled cross-linking curing methods of epoxy-amine reaction and siloxane hydrolysis condensation, as well as photoinduced cross-linking curing methods, are covered. Grafting fluorine-containing segments into polymers to reduce the surface energy and introducing nanoparticles to fabricate microstructure are two key aspects of the study of protective coatings. The prospects of protective coatings made from fluoropolymers were proposed.

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Section: Hydrosilylationmentioning

confidence: 99%

The current research status and future prospects of fluoropolymer protective coating materials

Zhang,

Yang,

Chen

et al. 2024

International Conference on Optoelectronic Information and Functional Materials (OIFM 2024)

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“…As shown in Figure 4c,d, the C=C absorption peak at 1627 cm −1 disappeared after 30 s UV irradiation, and the coating had a faster curing rate and double bond conversion rate. This was due to the high double bond density of PDHAA, which increased the initial reaction rate of the coating [29].…”

Section: Curing Behavior Of Uv-curable Coatingsmentioning

confidence: 99%

A New Phosphorous/Nitrogen-Containing Flame-Retardant Film with High Adhesion for Jute Fiber Composites

et al. 2023

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In this work, a novel P/N flame-retardant monomer (PDHAA) was synthesized through reacting phenyl dichlorophosphate (PDCP) with N-hydroxyethyl acrylamide (HEAA). The structure of PDHAA was confirmed using Fourier transform infrared (FTIR) spectroscopy and proton nuclear magnetic resonance (NMR) spectroscopy. PDHAA monomer and 2-hydroxyethyl methacrylate phosphate (PM-2) monomer were mixed at different mass ratios, to prepare UV-curable coatings, and then applied to the surface of fiber needled felts (FNFs), to improve their flame retardancy. PM-2 was introduced to reduce the curing time of the flame-retardant coatings and improve the adhesion between the coating and the fiber needled felts (FNFs). The research results indicated that the surface flame-retardant FNFs had a high limiting oxygen index (LOI) and rapidly self-extinguished in a horizontal combustion test and passed a UL-94 V-0 test. At the same time, the CO and CO2 emissions were greatly reduced, and the carbon residue rate was increased. In addition, the introduction of the coating improved the mechanical properties of the FNFs. Therefore, this simple and efficient UV-curable surface flame-retardant strategy has broad application prospects in the field of fire protection.

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“…They introduced multiple acryloxy functional groups at both ends of the silicone polymer through the hydrosilylation reaction between the C=C double bond and the Si-H bond to prepare UV-curable silicone materials with enhanced cross-linking density, transparency, oil resistance, and high-temperature resistance. However, since the four acryloyloxy groups contained in the PETA can all undergo hydrosilylation with the Si-H bond, the structure of the hydrosilylation product is uncertain, and there are numerous by-products [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

The Preparation of Acryloxyl Group Functionalized Siloxane Polymers and the Study of Their Ultra Violet Curing Properties

Du,

Chen,

et al. 2024

Polymers

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Polysiloxane with multiple acryloxyl groups at the terminal site of the polymer chain was synthesized by the condensation reaction between hydroxyl-terminated polysiloxane and acryloyl chloride and used to improve the cross-linking density of UV-curable silicone materials initiated from dual acryloxy-terminated symmetric polysiloxane or single acryloxy-terminated asymmetric polysiloxane with the mixture of Irgacure 1173 and Irgacure 184 at a mass ratio of 1:1 as the photoinitiator. The effects of factors such as initiator composition, UV irradiation time, structure, and molecular weight of linear dual acryloxy-terminated or single acryloxy-terminated asymmetric siloxane oligomers on the gelation yield, thermal properties, water absorption, and water contact angle of UV-cured film were investigated. The synthesized cross-linking density modifier can be copolymerized with acryloxy-functionalized linear polysiloxanes under the action of a photoinitiator to increase the cross-link density of UV-cured products effectively. Both linear dual acryloxy-terminated or single acryloxy-terminated asymmetric siloxane oligomers can be copolymerized with cross-link density modifiers within 20 s of UV irradiation. The gelation yields of the UV-cured products obtained from the dual acryloxy-terminated siloxane oligomers were greater than 85%, and their surface water contact angles increased from 72.8° to 95.9° as the molecular weight of the oligomers increased. The gelation yields of UV-cured products obtained from single acryloxy-terminated asymmetric siloxane oligomers were less than 80%, and their thermal stabilities were inferior to those obtained from the dual acryloxy-terminated siloxane oligomers. However, the water contact angles of UV-cured products obtained from these single acryloxy-terminated asymmetric siloxane oligomers were all greater than 90°.

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One-step synthesis of novel multifunctional silicone acrylate prepolymers for use in UV-curable coatings

Cited by 11 publications

References 58 publications

The current research status and future prospects of fluoropolymer protective coating materials

The current research status and future prospects of fluoropolymer protective coating materials

A New Phosphorous/Nitrogen-Containing Flame-Retardant Film with High Adhesion for Jute Fiber Composites

The Preparation of Acryloxyl Group Functionalized Siloxane Polymers and the Study of Their Ultra Violet Curing Properties

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