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Adhesives Ingredients
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Adhesives Ingredients
Polyurethane Adhesive

Polyurethane Adhesives


Polyurethane adhesives are used primarily in the assembly of printed-wiring boards to attach large components such as capacitors, magnetics, heat sinks, and connectors.

Key benefits of PU adhesives include flexibility, absorption of stresses, vibration damping, and thermal transfer. Being thermoplastic, polyurethanes are also easier to rework than epoxies.

Explore and learn about latest advancements and developments in polyurethane adhesives.

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Apr 18, 2012 | Article

Making Polyurethane Adhesives with Renewable Polyols

By Andy Extance

Though crude oil is rightly the ultimate source of many chemicals the adhesive industry uses, renewable alternatives can offer an alternative to aid economic and supply sustainability. To this end...

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Feb 6, 2012 | Article

Picking Polyurethane Prepolymers

By Andy Extance

Using just one basic backbone polymer chemistry, polyurethane adhesives can serve a wide range of applications, from food packaging to structural panels. The major challenge for adhesive...

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Dec 28, 2011 | Article

Acrylic / Polyurethane Hybrid Waterborne Sealants

By Edward M. Petrie

This article will first review the advantages of acrylic / polyurethane hybrid waterborne sealant formulations, and the routes to producing a polyurethane / acrylic base polymer system. The article...

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Dec 13, 2011 | Article

Plasticization of Polyurethane Adhesives and Sealants

By Edward M. Petrie

This article will first examine the reasons that external plasticizer modification may not be necessary with polyurethane adhesives and sealants. It will then review the possible value that can be...

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Nov 9, 2011 | Article

Degradation by Hydrolysis

By Edward M. Petrie

This article will focus on the moisture induced degradation of the bulk adhesive when the degradation is permanent. This is a mechanism known as hydrolysis. It is dependent on the chemical nature...

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Oct 10, 2011 | Article

POSS – Nanoreinforcement of Structural Adhesives

By Edward M. Petrie

This article reviews that status of POSS for use in adhesive systems, primarily epoxy and polyurethane, although POSS has found advantages in other systems as well. The unique physical properties...

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Sep 14, 2011 | Article

Keeping Low-isocyanate Emission Polyurethane Adhesives Flowing

By Andy Extance

The diisocyanates used to produce polyurethane adhesives can be toxic, and so it's important to reduce the amount that users are exposed to. Polyurethane prepolymers can help achieve this, but...

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Jul 18, 2011 | Article

Low-formaldehyde and Formaldehyde-free Adhesives

By Edward M. Petrie

Much has been made of recent, more severe changes in formaldehyde regulations as they apply to adhesives. These have been well-covered in previous SpecialChem articles and editorials. However, the...

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Jan 1, 2011 | Article

Formulation Details Draw Most Specialchem4Adhesives Readers

Thanks to how their component chemicals distribute themselves, adhesives are almost uniquely difficult to reverse-engineer. Yet, knowing how other people are making products is important from...

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Dec 1, 2010 | Article

Adhesive Industry Gets Serious on Renewable Starting Materials

Over the past two years SpecialChem4Adhesives readers have dramatically changed their outlook towards adhesives produced from materials obtained from biological sources. As an alternative to...

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