Rheological, mechanical and adhesion properties of two component adhesive based on modified silyl terminated polyether polymer and epoxy resin

Bitenieks, Juris; Meri, Remo Merijs; Zicāns, Jānis; Berzins, Ritvars; Umbraško, J; Rekners, U

doi:10.1088/1757-899x/111/1/012018

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…On the other hand, excellent resistance to artificial aging of silane terminated polymers (STP) and silyl modified polymers (MS polymers and/or SMP) was reported throughout the last decade [18][19][20][21][22][23][24]. Modified polymer sealants should be an efficient and environmentally friendly alternative to sealants based on polyurethane.…”

Section: State Of the Artmentioning

confidence: 99%

“…Modified polymer sealants should be an efficient and environmentally friendly alternative to sealants based on polyurethane. Still, Bitenieks et al [21] stated that not only can the curing period vary widely depending on the type of MS Polymer but also the kinetics of cross-linked network formation of various products can considerably affect the mechanical properties of the selected systems. The results of our project reported above support this conclusion as well.…”

Section: State Of the Artmentioning

confidence: 99%

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Research Summary on Characterizing Impact of Environment on Adhesion of Sealed Joints in Façade Applications

Nečasová¹,

Liška²

2020

Materials

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The presented paper summarizes the main research findings on the impact of the environment concerning the durability and service life of building joint sealants. The focus is placed on sealed joints in façade applications, which can serve different purposes and can also be several meters long which often intensifies the stresses that the joint needs to withstand and therefore its service life can be significantly shortened. Different approaches, test sample geometries and high-performance sealants, were used in this context to determine the most critical aspects for the studied application sector. The research was divided into three phases where the joints were subjected to (I) artificial weathering in a laboratory environment, (II) real weathering in an external environment, and (III) weathering via a real application that was monitored for almost 4 years. The extensive research scope confirmed one commonly known presumption, that standardized artificial weathering/aging methods are not able, from a long-term perspective, to simulate the impact of a real environment. The most valuable results were obtained in the third phase of the research, where the monitoring of a real façade brought to light completely different conclusions. The joints exposed to the real environment were either completely deteriorated or showed signs of advanced aging.

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