Лако-красочные материалы — производство

UV acrylic formulations cure to form thermoset resins and can provide a variety of properties from extremely flexible (>250% elongation) to very hard and rigid with a high modulus. The UV adhesives are offered in a selection of viscosities from thin liquids (less than 100 mPa-s) to highly thixotropic gel consistency with a viscosity greater […]

It is important that the UV adhesive not only sees the correct frequency of UV but also has sufficient intensity. The UV lamp is an essential part of the process and many different UV lamps are available to suit a wide range of applications and budgets. Light sources can range from a simple bench-top open […]

UV radiation can damage eyes and skin and UV equipment should be shielded to minimise any stray light. Use safety glasses and gloves and place dark or non­reflecting materials adjacent to the radiation equipment. Many UV bulbs will contain mercury and a proper disposal/absorption kit is required for damaged or broken bulbs.

UV radiation can damage eyes and skin and UV equipment should be shielded to minimise any stray light. Use safety glasses and gloves and place dark or non­reflecting materials adjacent to the radiation equipment. Many UV bulbs will contain mercury and a proper disposal/absorption kit is required for damaged or broken bulbs.

Light energy is defined by its wavelength and intensity. The wavelength is measured in nanometres (10-9 metres) and the intensity is measured in milliwatts/cm2 (mW/cm2). In order to cure a UV adhesive it is important to give the adhesive the correct wavelength (to match the photoinitiator) and the correct dosage of UV light. The total […]

Light energy is defined by its wavelength and intensity. The wavelength is measured in nanometres (10-9 metres) and the intensity is measured in milliwatts/cm2 (mW/cm2). In order to cure a UV adhesive it is important to give the adhesive the correct wavelength (to match the photoinitiator) and the correct dosage of UV light. The total […]

The ‘cure-on-demand’ properties of UV adhesives, together with rapid polymerisation, has led to their use in high-volume assembly processes where fast throughput and reduced work-in-progress levels offer real cost savings [2]. UV adhesives are generally single-part products allowing easy application. UV light must penetrate through to the bond line for the adhesive to cure, thus […]

The ‘cure-on-demand’ properties of UV adhesives, together with rapid polymerisation, has led to their use in high-volume assembly processes where fast throughput and reduced work-in-progress levels offer real cost savings [2]. UV adhesives are generally single-part products allowing easy application. UV light must penetrate through to the bond line for the adhesive to cure, thus […]

One of the more recent introductions to cyanoacrylate technology are UV-curable grades. These are modified ethyl-based products with added photoinitiators absorbing UV light in the UVA region (around 365 nm). Light-curing cyanoacrylates cure almost immediately to a hard, tack-free finish in less than 3 seconds when exposed to high — intensity UV light. Whereas most […]

Flexible cyanoacrylates were introduced in 2003 and are based on a modified ethyl monomer with considerably improved flexibility over the standard product. These cyanoacrylates were developed for the loudspeaker industry (Figure 1.8), where a degree of flexibility in the coil to suspension bonded joint is desirable. The flexible grades of cyanoacrylate are also surface insensitive […]