Long-Term Viscoelastic Behavior of Polyisobutylene Sealants before and after Thermal Stabilization

Long-Term Viscoelastic Behavior of Polyisobutylene Sealants before and after Thermal Stabilization

Polyisobutylene (PIB) is commonly used as a primary sealant in multi-layer insulating glazing elements, where temperatures often exceed 100 °C. At such conditions, PIB undergoes structural changes, causing different relaxation dynamics and leading to decreased lifetime of the material. Understanding...

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Bibliographic Details
Main Authors: Urška Gradišar Centa, Alen Oseli, Mohor Mihelčič, Aleš Kralj, Matjaž Žnidaršič, Miroslav Halilovič, Lidija Slemenik Perše
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Polymers
Subjects:
frequency–temperature superposition
polyisobutylene
relaxation time spectrum
structural changes
van Gurp–Palmen plot
viscoelastic properties
Online Access:https://www.mdpi.com/2073-4360/16/1/22

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