Study on effective parameters on Adhesion in segmented polyurethanes

Advancing the chemical engineering fundamentals

Interfacial & Colloidal Phenomena (T2-6P)

MSc Mahdi Amrollahi
Amirkabir University of Technology
Polymer Engineering
63,Allian Alley, Nabard Street, Pirouzi Ave
Tehran
Islamic Republic of Iran

Dr Gity Mir Mohamad Sadeghi
Amirkabir University of Technology
Polymer Engineering
No 8,12th Street, 200 Dastgah Street, Kashani Blvd.
Tehran
Islamic Republic of Iran

Keywords: Polyurethane, Adhesion, Phase separation, Peel strength, Tack resistance

Abstract
Phase separation in segmented polyurethanes is an important phenomena which affects on characterstic properties of polyurethanes. Morphology, formation and distribution of microdomains (hard segments and soft segments) are effective parameters on adhesion and interfatial interaction of polyurethane system. In this work segmented polyurethanes based on 4,4 -diphenylmethane diisocyanate (MDI) and 1,4-butanediol (BDO) were synthesized and the effect of various polyols as well as annealing on phase separation and energy dissipation of synthesized polyurethanes has been studied and also correlation between microstructural factors on final behavior (peel strength and tack resistance) of polymer well defined.

See the full pdf manuscript of the abstract.

Presented Thursday 20, 13:30 to 15:00, in session Interfacial & Colloidal Phenomena (T2-6P).