ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Different reactive diluents suitable for inducing network flexibilization of a typical ultraviolet curable epoxy resin based on bisphenol-A-diglycidyl-ether-diacrylate (BGEDA) were investigated. Firstly the influence of some monoacrylic reactive diluents, e.g. 2-ethylhexyl-acrylate (EHA) and 4-hydrocybutil-acrylate (HBA) and of a bis-acrylic diluent, polyethylene-glycol-diacrylate (PEGDA) was examined. Subsequently a systematic study was carried out on the properties of coatings resulting from mixtures of BGEDA and a poly(diethylene-glycol-carbonate) diacrylate (PGCDA) as reactive diluent. The main mechanical, dynamic-mechanical and technological properties of both free films and films coated on steel sheets, were evaluated. Interesting network flexibilization properties were observed when PGCDA was used as reactive diluent of BGEDA. The formulations investigated allowed us to obtain a broad range of flexibility for the resulting ultraviolet cured resins and to correlate the coating flexibility with other fundamental properties such asT g, elastic modulus, abrasion resistance, hardness, adhesion, impact resistance, accelerated ageing and resistance to chemicals.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00553053
Permalink