This computer-controlled liquid polyurethane dispenser by Max Machinery (Healdsburg, CA) can produce exactly the same polyurethane mix for each shot. Polyurethanes are used often in medical device ...

There are two main processes for thermoset PUs. Many PUs, particularly the foamed products, utilise a one step (one shot) process; a two stage process based on the pre-polymer system, is used in the ...

As more healthcare facilities require latex-free products to minimize the risk of allergic reactions among patients and staff, the demand accelerates for alternative elastomeric materials.

Ever since water was accidentally introduced into a reactor that contained toluene diisocyanate and polyester polyol, creating the first flexible polyurethane foam, materials scientists and designers ...

Polyurethane is highly elastic, wear resistant and durable, and is used, for example, in cushions, fibers, thermal insulation materials, dyes, adhesives and automobile parts. Polyurethane is an ...

Polyurethane (PU)-acrylic hybrid composites were prepared by emulsion polymerization of acrylic monomers in the presence of preformed PU chains containing polymerizable terminal vinyl groups. To study ...

It’s a scenario common in the chemical industry: A chemical is ideal for a certain use, but it is being shunned or banned outright because of environmental and ...

Long fiber-reinforcement has been among the fastest growing fabrication techniques in the past five years. Long fiber-reinforced composites approach the performance of composites reinforced with ...

Fourier transform infrared spectroscopy (FTIR) is a measurement technique which generates an infrared spectrum of emission, absorption, Raman scattering or photoconductivity of a liquid, solid or gas.