Knowledge base

Styrenic block copolymers (SBC) are widely used in a variety of pressure sensitive adhesive (PSA) applications both in tapes and labels. The most commonly used styrenic block copolymers for adhesive applications are tn-blocks containing an elastomenc mid-block and thermoplastic end-blocks. They are obtained via an ionic polymerization and are avail

UV-curing technology is well established in coatings and printing ink applications, but is not often used for curing of thicker materials. Interestingly, some advantages of UV curing for glass fiber reinforced resins have been known since the early 70's.Glass-fiber reinforced laminates are useful materials for architectural and building application

The physical properties of UV-cured materials are substantially affected by the lamp systems used to cure them. The development of the intended properties, whether a varnish, an ink, or an adhesive, can depend on how well these lamp factors are designed and managed. The four key factors of UV lamps are: UV irradiance (or intensity), spectral distri

For many years it has been clear that an obvious home for radiation curing is the coil coating industry. The process involves the application of paint to a rapidly moving flat substrate. Advantages such as reduced energy costs, shorter curing zones and a greater degree of control over the curing process are often cited. So why have no coil coaters

The surface of polyethylene (PE) was modified by photochemical introduction of sulfonic acid groups (FI-SO3H). Polyethylene (LDPE as well as HDPE) was irradiated with UV light in the presence of SO2 and O2. The presence of sulfonic acid groups at the PE surfaces was proved by FTIR, REM-EDX and XPS measurements. The presented method of surface modif

The radiation-initiated polymerisation of unsaturated acrylic resins is the fastest method of curing paint films. By using acrylic derivatives of low molecular weight as reactive thinners, it ispossible to eliminate the need for volatile solvents either wholly or in part. Reactive thinners which are incorporated in the system increase the crosslink

The natural beauty and timeless elegance of wooden surfaces give them a special place in modern interior design. To meet the high performance requirements, wood must be coated with a protective finish. Radiation-curing systems, which are environmentally sound, save energy and emit virtually novolatile compounds, are increasingly being chosen as an

A survey of the industrial coatings market , reveals that both powder coatings and UV curable coatings are playing a significant role in offering end users alternatives to traditional low solids, solvent based coatings. Powder coatings, with their excellent durability and mechanical properties, have established a strong position in many industrial