Moisture cured, reactive polyurethane adhesives are formulated using an isocyanate and amorphous and crystalline polyols of varying composition which are reacted to form a polyurethane prepolymers that is a solid at room temperature. These compositions contain residual isocyanate functionality that is reactive with moisture that comes from the atmosphere and surface to be bonded.
PU hot melts contain catalysts to promote the moisture cure and also contain other additives to control rheology, open time and strength of the resulting polyurethane polymer. The choice of polyols, based on performance requirements is an important factor in formulating any polyurethane system. Designing hot melts is no different. Understanding how isocyanate and polyol structure affect reactivity and the physical properties of the formulated hot melt is an important aspect of hot melt formulation which this training is intended to provide.
This is a highly recommended industry training and must for every formulator looking for noticeable improvements in his/her formulations. Attending this exclusive technical training will give you an upper edge in:
- Chemistry of hot melts, isocyanates and polyols with examples
- Achieving the desired goals with reactive hot melts adhesive
- Designing a hot melt from a structure/property perspective
Our expert will discuss and share his expertise regarding the reactive hot melt formulations and moisture curing and related case studies.
This is a very useful industry recommended training for professionals in chemical industry in particular:
- R&D chemists, adhesives & sealant formulators
- Scientists, product development specialists
Also suitable for students who are interested in better understanding PU hot melt products and formulation needs.
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