Thermomechanical and Deformation Properties of Electron Beam Modified Polypropylene Copolymer Grafted with Acrylic Monomer
Mechanical and structural properties of polypropylene (PP) block copolymer irradiated with 5 MeV electron beam irradiation (absorbed doses 25 - 150 kGy) have been investigated. Increase of the strength-strain characteristics of PP modified with bisphenol a dimethacrylate monomer (BAD) as the cross-l...
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| Veröffentlicht in: | Rigas Tehniskas Universitates Zinatniskie Raksti 2012-01, Vol.25, p.16-16 |
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| container_title | Rigas Tehniskas Universitates Zinatniskie Raksti |
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| creator | Reinholds, Ingars Kalkis, Valdis Zicans, Janis Merijs-Meri, Remo Elksnite, Ilze |
| description | Mechanical and structural properties of polypropylene (PP) block copolymer irradiated with 5 MeV electron beam irradiation (absorbed doses 25 - 150 kGy) have been investigated. Increase of the strength-strain characteristics of PP modified with bisphenol a dimethacrylate monomer (BAD) as the cross-linking agent with concentration of 0.5 - 3 wt.% have been researched. Properties of materials grafted with BAD have been investigated by the methods of differential scanning calorimetry and infrared spectroscopy. Thermorelaxation (σTR, MPa) and residual stresses (σRS, MPa) caused by isometric heating and subsequent cooling of irradiated and oriented ([straight epsilon] = 100%) samples with 3 wt.% BAD have been measured. Thermorelaxation (σTR, MPa) and residual stresses (σRS, MPa) have indicated a relatively high efficiency of cross-linking. Increase of mechanical properties (E, σb, and [straight epsilon]b) at absorbed doses 25 - 150 kGy with increase in the content of BAD in comparison to entire PP has been determined. |
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Increase of the strength-strain characteristics of PP modified with bisphenol a dimethacrylate monomer (BAD) as the cross-linking agent with concentration of 0.5 - 3 wt.% have been researched. Properties of materials grafted with BAD have been investigated by the methods of differential scanning calorimetry and infrared spectroscopy. Thermorelaxation (σTR, MPa) and residual stresses (σRS, MPa) caused by isometric heating and subsequent cooling of irradiated and oriented ([straight epsilon] = 100%) samples with 3 wt.% BAD have been measured. Thermorelaxation (σTR, MPa) and residual stresses (σRS, MPa) have indicated a relatively high efficiency of cross-linking. 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Increase of the strength-strain characteristics of PP modified with bisphenol a dimethacrylate monomer (BAD) as the cross-linking agent with concentration of 0.5 - 3 wt.% have been researched. Properties of materials grafted with BAD have been investigated by the methods of differential scanning calorimetry and infrared spectroscopy. Thermorelaxation (σTR, MPa) and residual stresses (σRS, MPa) caused by isometric heating and subsequent cooling of irradiated and oriented ([straight epsilon] = 100%) samples with 3 wt.% BAD have been measured. Thermorelaxation (σTR, MPa) and residual stresses (σRS, MPa) have indicated a relatively high efficiency of cross-linking. Increase of mechanical properties (E, σb, and [straight epsilon]b) at absorbed doses 25 - 150 kGy with increase in the content of BAD in comparison to entire PP has been determined.</description><subject>Bisphenol A</subject><subject>Crosslinking</subject><subject>Electron beams</subject><subject>Heating</subject><subject>Irradiation</subject><subject>Monomers</subject><subject>Polypropylenes</subject><subject>Residual stress</subject><issn>1407-7353</issn><issn>2255-8713</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpdjk1LAzEQhhdRsGj_Q8CLl4V8J3ustVahYg-9lzSZ0JRssma3SP31BvTkaZh5n5l5rpoZpUK0WhF23cwIx6pVTLDbZj6OJ4wxUUx1mM6a790RSp97sEeTgjURmeTQM_hcejOFnNC25AHKFGBE2aNVBDuVOn4C06P37IIP4NA2x8tQwUuEBGiZh9r3UNC6GD_V_CtMR7Sw5RKDrVupPiz3zY03cYT5X71rdi-r3fK13Xys35aLTTtIwtpOandw1VZxp4220lNxoEYrSTwcCLFYuc6Alha8kErajmPpuObMMUsxZ3fN4-_Z6vd5hnHa92G0EKNJkM_jnhAmmdBSs4o-_ENP-VxSldsTzARhlFPBfgDul2oV</recordid><startdate>20120101</startdate><enddate>20120101</enddate><creator>Reinholds, Ingars</creator><creator>Kalkis, Valdis</creator><creator>Zicans, Janis</creator><creator>Merijs-Meri, Remo</creator><creator>Elksnite, Ilze</creator><general>Riga Technical University</general><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BYOGL</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L7M</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20120101</creationdate><title>Thermomechanical and Deformation Properties of Electron Beam Modified Polypropylene Copolymer Grafted with Acrylic Monomer</title><author>Reinholds, Ingars ; 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Increase of the strength-strain characteristics of PP modified with bisphenol a dimethacrylate monomer (BAD) as the cross-linking agent with concentration of 0.5 - 3 wt.% have been researched. Properties of materials grafted with BAD have been investigated by the methods of differential scanning calorimetry and infrared spectroscopy. Thermorelaxation (σTR, MPa) and residual stresses (σRS, MPa) caused by isometric heating and subsequent cooling of irradiated and oriented ([straight epsilon] = 100%) samples with 3 wt.% BAD have been measured. Thermorelaxation (σTR, MPa) and residual stresses (σRS, MPa) have indicated a relatively high efficiency of cross-linking. Increase of mechanical properties (E, σb, and [straight epsilon]b) at absorbed doses 25 - 150 kGy with increase in the content of BAD in comparison to entire PP has been determined.</abstract><cop>Riga</cop><pub>Riga Technical University</pub><tpages>1</tpages></addata></record> |
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| ispartof | Rigas Tehniskas Universitates Zinatniskie Raksti, 2012-01, Vol.25, p.16-16 |
| issn | 1407-7353 2255-8713 |
| language | eng ; lav |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Bisphenol A Crosslinking Electron beams Heating Irradiation Monomers Polypropylenes Residual stress |
| title | Thermomechanical and Deformation Properties of Electron Beam Modified Polypropylene Copolymer Grafted with Acrylic Monomer |
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