Interfacial adhesion evaluation in (low-density polyethylene)/elastomer blends

Krzysztof Formela; Łukasz Piszczyk; Józef Haponiuk; Krzysztof Bajer; Magdalena Formela

doi:10.1002/vnl.21474

Interfacial adhesion evaluation in (low-density polyethylene)/elastomer blends

Abstract

Low-density polyethylene (LDPE) with different elastomers at a ratio of 50/50 wt% blends was prepared by using a co-rotating twin-screw extruder. Three kinds of elastomers were used: ground tire rubber (GTR), partially crosslinked butyl rubber (KalarVR ), and styrenebutadiene- rubber block copolymer (SBS; KratonVR ). For better characterization of interaction between polyethylene and elastomer, influence of the type of elastomer on the properties of compositions LDPE/elastomer was determined. In the studies, two types of partially crosslinked butyl rubber (differing over filler content and Mooney viscosity) and two types of SBS (differing over structure: linear/branched) were used. The influence of kind and type of elastomer on static mechanical properties (tensile strength, elongation at break, hardness), dynamic mechanical properties, thermal properties, and morphology of obtained compositions were characterized. LDPE/linear SBS copolymer blend had the best mechanical properties, as a result of better compatibility in comparison with other investigated blends. The reason for improved compatibility was an increase of mobility of chain segments in the amorphous phase of polyethylene associated with their partial plasticization by flexible polybutadiene blocks present in SBS copolymer.

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Authors (5)

Krzysztof Formela dr inż.
Łukasz Piszczyk dr hab. inż.
Józef Haponiuk prof. dr hab. inż.
Krzysztof Bajer
- Instytut Inżynierii Materiałów Polimerowych i Barwników OZ Toruń
Magdalena Formela

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Keywords

POLYMER BLENDS, COMPATIBILITY, EXTRUSION

Details

Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: JOURNAL OF VINYL & ADDITIVE TECHNOLOGY no. 22, edition 4, pages 492 - 500,
ISSN: 1083-5601
Language:: English
Publication year:: 2016
Bibliographic description:: Formela K., Piszczyk Ł., Haponiuk J., Bajer K., Formela M.: Interfacial adhesion evaluation in (low-density polyethylene)/elastomer blends// JOURNAL OF VINYL & ADDITIVE TECHNOLOGY. -Vol. 22, iss. 4 (2016), s.492-500
DOI:: Digital Object Identifier (open in new tab) 10.1002/vnl.21474
Verified by:: Gdańsk University of Technology