Capillary hydrodynamics of oligomer binders

The performance evaluation for rivet bonded joints in production and machine maintenance

“…It is necessary to control the uniformity of the adhesive layer thickness during its application and further mounting of the framework [8][9]. Gapping between parts to be joined causes starved spots which can also occur due to air inclusions and voids in the bond line which in turn appear because of the bonding process failure.…”

“…3). Error accumulation is typical for this approach and it may take place on each process step and consequently result in a poorer quality of finished products [4,9].…”

Application of glue machinery repairs in Arctic conditions

“…It is known that polymer materials have a partial or total loss of performance at low temperatures, i.e. limited frost resistance [2,4]. Therefore, the implementation of adhesive assembly technologies in Arctic requires a special attention to the frost resistance of the used materials.…”

Modern treatment technologies of carbon fibre for ensuring the high strength carbon fibre reinforced plastic production

“…The number of paramagnetic centres in the carbon fibres and CFRP were analysed. The interlayers shear strength of CFRP based on epoxy resin was investigated.Applications of carbon fibre-reinforced plastics structural products for various purposes are expanding every year due to their unique complex of strength and thermal properties [1,2] and as well as the development of new moulding technologies [3][4][5].It was shown in the paper [3] that oxygen-containing functional groups with the different chemical composition and stability are present on the surface of carbon fibres, which largely determine the magnitude of the adhesive interaction of the fibre-matrix pair.Some of the functional groups are in ionized form, forming carboxylate ions. Depending on storage conditions, they are capable of hydrolysing according to various schemes, which leads to an increase (or decrease) in the reactivity of carbon fibres.…”

“…Applications of carbon fibre-reinforced plastics structural products for various purposes are expanding every year due to their unique complex of strength and thermal properties [1,2] and as well as the development of new moulding technologies [3][4][5].…”