Influence of monomer on structure, processing and application characteristics of UV curable urethane acrylate composite coatings

Baltic Polymer Symposium 2015

材料科学;化学

Grigale-Sorocina, Z.^1 ; Kalnins, M.^2 ; Gross, K.A.^2

Environment, Bioenergetics and Biotechnology Competence Centre, Aizkraukles street 21, 339, Riga

LV-1006, Latvia^1

Riga Technical University, Faculty of Material Science and Applied Chemistry, Institute of Polymer Materials, P. Valdena Street 3, Riga

LV-1048, Latvia^2

关键词: Coating application;    Deformation Characteristics;    Degree of conversion;    Ethylene glycol dimethacrylate;    Tetrahydrofurfuryl;    Ultimate elongation;    Urethane acrylate;    UV curable coatings;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/111/1/012008/pdf
DOI  :  10.1088/1757-899X/111/1/012008

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Increased interest in the esthetical natural nail coatings have encouraged more in-depth studies particularly of UV curable coatings: their formation, processing, structure, characteristics and removing. Typical requirement for nail coatings is good adhesion, but preferably for the short time of functioning (usual 2-4 weeks). This study investigated the impact of four different monomers (tertiobutyl cyclohexyl acrylate (TBCHA), ethylene glycol dimethacrylate (EGDMA), tetrahydrofurfuryl acrylate (THFA), hydroxypropyl methacrylate (HPMA)) to viscosity of uncured mixture and degree of conversion, mechanical properties, surface gloss, micro hardness and adhesion loss for cured films. Specific coating application requires comparatively high coating flexibility and stability of deformation characteristics. This can be achieved with composition containing 30% of monomer TBCHA, what shows ultimate elongation B= 0,23 - 0,24, modulus of elasticity E = 670-710 MPa and comparatively constant properties in 72 hours (ΔE = 1.3%, ΔB=6.0%). A composition with 40% of TBCHA shows the fastest coating destruction achieving adhesion loss within 3 min.