The Relationship between Rheological, Thermal, and Tack Properties of Copolyester-Based Hot Melt Adhesives

作     者：Misiak, Michal Latko-Duralek, Paulina Fernandez, Maria Mercedes Martínez, Jorge Luis Olmedo Górecka, Żaneta Malmir, Amir Kozera, Paulina Müller, Alejandro J. Hatzikiriakos, Savas G. Boczkowska, Anna 

作者机构：Faculty of Materials Science and Engineering Warsaw University of Technology Woloska 141 Street Warsaw02-507 Poland POLYMAT Department of Polymers and Advanced Materials: Physics Chemistry and Technology Faculty of Chemistry University of the Basque Country Donostia-San Sebastián20018 Spain Department of Chemical and Biological Engineering University of British Columbia 2360 East Mall VancouverBCV6T 1Z3 Canada Technology Partners Foundation Bitwy Warszawskiej 1920r. 7A Warsaw02-366 Poland Ikerbasque Basque Foundation for Science Plaza Euskadi 5 Bilbao48009 Spain 

出 版 物：《SSRN》 

年 卷 期：2024年

核心收录：

主　　题：Elasticity 

摘      要：This paper studies the interrelationships between the molecular weight, rheology, and tackiness of three types of thermoplastic hot melt adhesives. The hot melt adhesives employed here differ in their compositions and molecular weights, even when they are based on a similar type of copolyester. Differences in the composition were found to influence the adhesives crystallization and melting behavior. Furthermore, adhesives with higher molecular weight were observed to possess greater elasticity, leading to significantly enhanced tackiness properties, as evidenced by the higher values of tensile modulus, peak stress, and work of debonding. This elevated tackiness was linked to the increased fibrillation process observed in polymers with higher molecular weights. The outcomes presented in this study underscore the diversity among hot melt adhesives and the critical properties that should be taken into consideration when selecting adhesives for specific applications. © 2024, The Authors. All rights reserved.