The mechanical response of thermoplastic polyethylene monoliths containing longitudinal microcapillaries
| Autor: | José A. Otero, G.J. McShane, Dora I. Medina, Malcolm R. Mackley |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
geography Materials science geography.geographical_feature_category Thermoplastic Capillary action 02 engineering and technology Polymer Polyethylene 010402 general chemistry 021001 nanoscience & nanotechnology Microstructure Compression (physics) 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Ultimate tensile strength General Materials Science Monolith Composite material 0210 nano-technology |
| Zdroj: | International Journal of Material Forming. 11:135-147 |
| ISSN: | 1960-6214 1960-6206 |
| DOI: | 10.1007/s12289-016-1337-0 |
| Popis: | This paper is concerned with the mechanical compressive and tensile behaviour of polyethylene microcapillary monoliths (MCMs). MCMs are a voided polyethylene microstructure with two dimensional arrays of microcapillaries and where the polymer monolith is fabricated by the heat melding of microcapillary films (MCFs). MCFs are plastic films that resemble a tape but with an array of capillaries embedded within it. A reference monolith (MCM without capillaries) was also fabricated and tested under the same conditions as both low and high-voidage MCMs. The effect of the capillaries and voidage under compression of the polymer samples were evaluated taking as a standard, the reference monolith and a mathematical model was used to compare with the observed MCM capillaries response. Additionally the tensile mechanical drawing of low-voidage MCMs at different temperatures was carried out. The low-voidage MCM was mechanically drawn in the capillary direction with the objective of obtaining smaller diameter capillaries and the results show that with drawing, the initially circular section microcapillaries develop into a profile that follows the outer rectangular section of the monolith. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink