Knowledge base

In many open molding fiberglass composite processes, volatile diluent monomers are used with oligomeric unsaturated polyester or vinyl ester compositions. Curing with accelerator catalyst allow for large amounts of the volatile monomer to be lost, through surface evaporation, before the surface of the resin compositions can set up. This evaporation

Currently, regarding the coating of exterior automotive parts made of plastics, in Europe the UV technology plays an important role in the field of light systems. The curing of the scratch resistant coating of headlight lenses made of polycarbonate is concerned, as well as the cross linking of the primer coating of reflectors in BMC or thermaiplast

The present paper shows typical applications of photoacoustic spectroscopy to the investigation of photoinitiating systems triplet energy level, quantum yield of intersystem crossing, enthalpy of formation of radicals, bond dissociation energy of amine.

Thermoplastic elastomers can be readily crosslinked at ambient temperature by UV-irradiation inthe presence of a photoinitiator 1.2 These polymers, like styrene-butadiene block copolymers(SBS), have a two-phase morphology, and are commonly used as pressure-sensitive adhesives,in combination with a tackfying resin, and as flexographic printing plate

A new generation of waterborne UV-curable resinè not only shows the same level of product quality compared to conventional UV-curable resins but also can offer in addition some very interesting features for industrial applications. In the present paper performances of UV curable waterborne acrylates are described.

For most photoinduced free radical based polymerizations, the uniformity of double bond conversion as a function of coating thickness as well as a high total degree of conversion 1, 2] are crucial for the performance characteristics of the photopolymerized coating. In this study, the influence of irradiance (lo) and photoinitiator concentration Ph!

Cationic UV is typically used in coating and ink applications, which are generally applied as thinfilms (<6 microns). Curing thicker sections is important for applications like, , and . Cationics have benefits for these types of applications. The low shrinkage of cationics is important for limited distortion during cure and the excellent adhesio

The DRUPA 2000 gave a decisive impetus of growth to the whole graphic arts industry. Technological innovations of the relatively young UV technology were also pushed considerably.This presentation will show you the possible fields of application and the chances that can thuspresent themselves. Already today the UV technology shows an annual increas