About seventy years ago, adhesion has started to become a critical factor for many scientific and technological applications and, in parallel, it has started to be developed as field of study. Bonding by adhesives is the main feature: it allows to made a lighter product, to have better aesthetics and to ensure better stress distribution. Firstly developed in 1940s, PU-based adhesives (PU = Polyurethane) offer a reasonable range of use because they form hydrogen bonds to the substrate and improve the wettability of most surfaces. In footwear industry, this type of adhesives has been intensively used for the production of technical articles such as rubber/PU soles. Here we report how performances change according to the quantity of adhesive added in a room temperature (that simulates a normal situation of use) and, according to UN 12749, how the values changes in a very stressful situation.
Importance of PU-based adhesive in footwear industry: a case study
Riccardo Vallesi;Maura Pellei;Carlo Santini
2019-01-01
Abstract
About seventy years ago, adhesion has started to become a critical factor for many scientific and technological applications and, in parallel, it has started to be developed as field of study. Bonding by adhesives is the main feature: it allows to made a lighter product, to have better aesthetics and to ensure better stress distribution. Firstly developed in 1940s, PU-based adhesives (PU = Polyurethane) offer a reasonable range of use because they form hydrogen bonds to the substrate and improve the wettability of most surfaces. In footwear industry, this type of adhesives has been intensively used for the production of technical articles such as rubber/PU soles. Here we report how performances change according to the quantity of adhesive added in a room temperature (that simulates a normal situation of use) and, according to UN 12749, how the values changes in a very stressful situation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
