Synthesis and photopolymerization of hyperbranched polyurethane acrylates applied to UV curable flame retardant coatings

2002 ◽  
Vol 51 (3) ◽  
pp. 223-227 ◽  
Author(s):  
Sheng-Wu Zhu ◽  
Wen-Fang Shi
Keyword(s):  
Flame Retardant ◽  
Uv Curable ◽  
Hyperbranched Polyurethane

Designing efficient UV-curable flame-retardant and antimicrobial wood coating: Phosphorodiamidate reactive diluent with epoxy acrylate

2021 ◽  
Vol 28 (10) ◽  
Author(s):  
Pundalik Mali ◽  
Narendra Sonawane ◽  
Vikas Patil ◽  
Ravi Mawale ◽  
Nilesh Pawar
Keyword(s):  
Flame Retardant ◽  
Epoxy Acrylate ◽  
Reactive Diluent ◽  
Wood Coating ◽  
Uv Curable

scholarly journals UV-Curing of Novel Tri-functional Melamine-phosphate Oligomer: An Effect of Coating With Polyurethane Acrylate Towards Mechanical, Thermal And Flame Retardant Properties

2021 ◽  
Author(s):  
Pundalik Mali ◽  
Narendra Sonawane ◽  
Nilesh Pawar ◽  
Vikas Patil
Keyword(s):  
Flame Retardant ◽  
Thermo Gravimetric Analysis ◽  
Galvanized Steel ◽  
Gravimetric Analysis ◽  
Pencil Hardness ◽  
Uv Curable ◽  
Polyurethane Coatings ◽  
Melamine Phosphate ◽  
Polyurethane Acrylate ◽  
Flame Retardant Properties

Abstract A novel melamine-phosphate trifunctional acrylate MPTO) was successfully synthesized via simple cyclization of hexamethylolmelamine (HMM) with phosphorous oxychloride (POCl3) followed by addition reaction of hydroxyethylmethacrylate (HEMA). The molecular structure of MPTO was identified by FTIR and 1H-NMR, 13C-NMR, and GC-MS spectra. The synthesized MPTO oligomer was impregnated with polyurethane acrylate to make the various formulation of UV-cured coatings. The polyurethanes-MPTO oligomers were coated on wood and galvanized steel panels. The properties of UV-cured PU-MPTO were studied by differential scanning calorimeter (DSC), while their crystallinity by X-ray diffraction analysis (XRD). The thermo-gravimetric analysis (TGA) exhibited a high char yield of 18.4% at 800 °C. Moreover, coating films show prominent flame retardancy with UL-94 V-0 rating and maximum limiting index value (LOI) values of 34.8%, which are much higher than the common polyurethane coatings. The polyurethane coatings cured with MPTO exhibited excellent mechanical properties were estimated various tests such as adhesion, pencil hardness, solvent resistance, flexibility, and corrosion test. The coating performance revealed that MPTO improves the mechanical, thermal, and flame retardant properties because their unique structure contains melamine-phosphate moiety and long aliphatic chains of an acrylate ester. These high-performance melamine-based UV-curable coatings are promising for extensive applications.

Preparation and expansion properties of a novel UV-curable intumescent flame-retardant coating

2015 ◽  
Vol 122 (1) ◽  
pp. 329-338 ◽  
Author(s):  
Jiang Bu ◽  
Hongbo Liang ◽  
Dandan Zhang ◽  
Lei Xiong ◽  
Shengmei Huang
Keyword(s):  
Flame Retardant ◽  
Intumescent Flame Retardant ◽  
Uv Curable

Phosphorus-containing reactive agent for UV-curable flame-retardant wood coating

2019 ◽  
Vol 16 (5) ◽  
pp. 1493-1502 ◽  
Author(s):  
Saket Mulge ◽  
Siddhesh Mestry ◽  
Durva Naik ◽  
Shashank Mhaske
Keyword(s):  
Flame Retardant ◽  
Wood Coating ◽  
Uv Curable ◽  
Phosphorus Containing
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