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LOCAL NANO-MECHANICAL PROPERTIES OF CROSS-LINKED POLYBUTYLENE
- Source :
- Acta Polytechnica CTU Proceedings, Vol 27, Iss 0, Pp 112-115 (2020), Proceedings of the 14th International Conference on Local Mechanical Properties-LMP 2019, Vol 27
- Publication Year :
- 2020
- Publisher :
- CTU Central Library, 2020.
-
Abstract
- Cross-linking is a process in which polymer chains are associated through chemical bonds. The cross-linking level can be adjusted by the irradiation dosage and often by means of a cross-linking booster. The polymer additional cross-linking influences the surface nano and micro layers in the way comparable to metals during the thermal and chemical-thermal treatments. Polybutylene terephthalate (PBT) can be found in a group of structural polymers, which are often used in industry, especially in automotive. Applying the technology of electron radiation induces a creation of 3D network structure, which improves the local mechanical properties. These were later measured by a depth sensing indentation (DSI) test. This state of the art method is based on immediate detection of indentation depth in relation to applied force. The creation of 3D network caused an increase in nano-mechanical properties values, such as indentation hardness and indentation modulus, in comparison to the virgin material. The indentation hardness rose by 80%, while the indentation modulus elevated by 62%. The selected structural materials, e.g. PBT, were modified by the electron irradiation in a positive way and as such could be moved to a group of high performance materials. © Czech Technical University in Prague, 2020.<br />European Regional Development Fund under the project CEBIA-Tech Instrumentation [CZ.1.05/2.1.00/19.0376]; Ministry of Education, Youth and Sports of the Czech Republic within the National Sustainability Program [LO1303 (MSMT-7778/2014)]; Internal Grant Agency of TBU in Zlin [IGA/FT/2020/003]<br />IGA/FT/2020/003; Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT: LO1303, MSMT-7778/2014; European Regional Development Fund, FEDER: CZ.1.05/2.1.00/19.0376
- Subjects :
- nano-indentation
Structural material
Materials science
Polybutylene
Modulus
Nanoindentation
Indentation hardness
hardness
Polybutylene terephthalate
chemistry.chemical_compound
polybutylene terephthalate
chemistry
electron radiation
lcsh:TA1-2040
Indentation
cross-linked
Electron beam processing
General Earth and Planetary Sciences
cross-linked, electron radiation, hardness, nano-indentation, polybutylene terephthalate
Composite material
lcsh:Engineering (General). Civil engineering (General)
General Environmental Science
Subjects
Details
- Language :
- English
- ISSN :
- 23365382
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Acta Polytechnica CTU Proceedings
- Accession number :
- edsair.doi.dedup.....b8251673b19b72695027cc2f4b2f337a