Isocyanates react with compounds that have active hydrogens. For example, in coating applications, isocyanates are typically reacted with polyols to form polyurethanes, or with primary and secondary amines to form polyureas. Catalysis of the polyol/isocyanate reaction, which is often required to develop sufficient cure response, can be achieved with a variety of compounds.
Testing pressure sensitive adhesives under standard conditions of temperature and relative humidity is a preferred means to compare data from lab to lab and from lot to lot.
June 7, 2017
As production demands have risen, it has become necessary for silicone curing to accelerate accordingly. But how fast can cure take place without compromising strength? And which fast-cure silicones are appropriate for a given application?
The market is projected to grow from $1.57 billion in 2017 to $2.38 billion by 2022.
June 5, 2017
Reportedly, the usability of these adhesive in several end-use applications, coupled with the rising demand for instant adhesive, is estimated to boost the demand for instant adhesive in the near future.