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[{"key": "dc.contributor.advisor", "value": "Louhelainen, Jarmo", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Miikki, Vesa", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Sundquist, Mika", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Rantala, Emmi", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2019-10-29T06:11:04Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2019-10-29T06:11:04Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2019", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/66095", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4m\u00e4n pro gradu -tutkielman tavoitteena oli l\u00f6yt\u00e4\u00e4 menetelm\u00e4 painopaperin p\u00e4\u00e4llystyskerroksessa k\u00e4ytettyjen sideainelateksien tunnistamiseksi ja kvantitoimiseksi. P\u00e4\u00e4llystetyt paperit ovat kemiallisen analyysin n\u00e4k\u00f6kulmasta eritt\u00e4in haastavia n\u00e4ytteit\u00e4, sill\u00e4 ne koostuvat useista erilaisista kerroksista ja ovat siksi hyvin heterogeenisi\u00e4. P\u00e4\u00e4llystyspastassa voidaan k\u00e4ytt\u00e4\u00e4 runsaasti erilaisia yhdisteit\u00e4 riippuen valmiin tuotteen k\u00e4ytt\u00f6tarkoituksesta. Muun muassa n\u00e4m\u00e4 seikat asettavat monia vaatimuksia sopivan analyysimenetelm\u00e4n l\u00f6yt\u00e4miseksi.\n\nTutkielman kirjallisuusosan alussa tutustuttiin painopaperin p\u00e4\u00e4llyst\u00e4miseen sek\u00e4 p\u00e4\u00e4llystyspastan eri komponentteihin. T\u00e4m\u00e4n j\u00e4lkeen syvennyttiin pastassa k\u00e4ytett\u00e4vien sideaineiden, tarkemmin ottaen lateksien, vaihtoehtoisiin tunnistus- ja kvantitointimenetelmiin sek\u00e4 menetelmien keskin\u00e4iseen vertailuun. Vertailun perusteella valittiin kokeellisessa osassa testattaviksi menetelmiksi FTIR-ATR-spektrometri, konfokaali Raman-mikroskooppi sek\u00e4 Py GC/MS. Kyseisten menetelmien mahdollisuuksien ja rajoitteiden tutkimisessa k\u00e4ytettiin kolmea erilaista n\u00e4ytetyyppi\u00e4: koostumukseltaan tunnettuja pastan\u00e4ytteit\u00e4, laboratoriop\u00e4\u00e4llystettyj\u00e4 papereita sek\u00e4 pilottiajoissa valmistettuja papereita. N\u00e4ytteet mitattiin tavallisesti ilman esik\u00e4sittelyj\u00e4, mutta Raman-mittauksia varten paperin\u00e4ytteist\u00e4 valmistettiin my\u00f6s hartsiin valettuja mikrotomoituja poikkileikkeit\u00e4 eri p\u00e4\u00e4llystyskerrosten analysoimiseksi.\n\nTutkimuksessa saadut tulokset osoittivat, ett\u00e4 jokaisella valitulla analyysimenetelm\u00e4ll\u00e4 saadaan kesken\u00e4\u00e4n erilaista tietoa lateksien identifioimiseksi. FTIR-ATR:ll\u00e4 voitiin tunnistaa helpoiten akrylaatti- ja asetaattiryhm\u00e4t sek\u00e4 p\u00e4\u00e4llystyspastassa k\u00e4ytetyt pigmentit, Py-GC/MS:lla styreeni, akrylaatti ja butadieeni sek\u00e4 Raman-mikroskoopilla styreeni. Kvantitointimenetelm\u00e4n\u00e4 FTIR-ATR:ll\u00e4 saatiin parhaimmat tulokset, mutta menetelm\u00e4 vaatii yh\u00e4 kehitt\u00e4mist\u00e4. My\u00f6s Py-GC/MS:lla voi olla tulevaisuudessa mahdollisuudet lateksim\u00e4\u00e4r\u00e4n analysoimiseksi, jos kalibrointin\u00e4ytteist\u00e4 tehd\u00e4\u00e4n entist\u00e4 enemm\u00e4n tutkittavan n\u00e4ytteen kaltaisia. Raman-mikroskoopilla on mahdollista saada tietoa lateksin migratoitumisesta sek\u00e4 erilaisista p\u00e4\u00e4llystyskerroksista.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Miia Hakanen (mihakane@jyu.fi) on 2019-10-29T06:11:03Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2019-10-29T06:11:04Z (GMT). No. of bitstreams: 0\n Previous issue date: 2019", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "194", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "FTIR-ATR", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "PY-GC/MS", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "konfokaali Raman-mikroskooppi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "SB-lateksi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "SA-lateksi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Painopaperin p\u00e4\u00e4llystyskerroksen sideainelateksien analysointi", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201910294656", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Kemian laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Chemistry", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Soveltava kemia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Applied Chemistry", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.collaborator", "value": "business", "language": "", "element": "contractresearch", "qualifier": "collaborator", "schema": "yvv"}, {"key": "yvv.contractresearch.funding", "value": "-", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "yvv.contractresearch.initiative", "value": "business", "language": "", "element": "contractresearch", "qualifier": "initiative", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4036", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "lateksit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "painopaperi", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "sideaineet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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