Priprava i karakterizacija poli(metil-metakrilatnih) kompozita s nanocelulozom
| العنوان: | Priprava i karakterizacija poli(metil-metakrilatnih) kompozita s nanocelulozom |
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| المؤلفون: | Mrkalj, Kristijan, Faraguna, Fabio, Vidović, Elvira, Jukić, Ante |
| المصدر: | Kemija u Industriji, Vol 70, Iss 9-10, Pp 535-542 (2021) Kemija u industriji : Časopis kemičara i kemijskih inženjera Hrvatske Volume 70 Issue 9-10 |
| بيانات النشر: | Croatian Society of Chemical Engineers, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | nanoceluloza, Chemistry, General Chemical Engineering, poly(methyl methacrylate), nanocellulose, DSC, SEC, solution mixing, poli(metil-metakrilat), priprava iz otopine, General Chemistry, sec, QD1-999, dsc |
| الوصف: | Provedenim istraživanjem priređeni su kompozitni materijali na osnovi poli(metil-metakrilata) i poli(metil-metakrilat-ko-dimetilaminoetil-metakrilata) s nanocelulozom u udjelu 1, 2,5 i 5 mas. %. Metodom ex situ iz otopine dobivena je homogena raspodjela nanopunila u polimernoj matrici. Kromatografijom isključenja po veličini ustanovljeno je da jaka smična sila primijenjena pri homogenizaciji uzrokuje pucanje najvećih molekula polimera i time blago smanjenje prosjeka molekulskih masa polimerne matrice. Veća staklišta kompozita u odnosu na čiste polimerne matrice i porast staklišta s povećanjem udjela punila potvrđuju homogenost raspodjele i kompatiblnost nanoceluloze s istraživanim metakrilatnim matricama. Dodavanjem nanoceluloze povećava se hidrofilnost materijala, što olakšava tisak i može pogodovati njihovoj primjeni kao ambalažnih materijala. Ovo djelo je dano na korištenje pod licencom Creative Commons Imenovanje 4.0 međunarodna. The composite materials based on poly(methyl methacrylate) and poly(methyl methacrylate-co-dimethylaminoethyl methacrylate) with nanocellulose in the proportion of 1, 2.5, and 5 wt% were prepared. The homogeneous distribution of nanofillers in the polymer matrix was obtained from the solution by the ex situ method. Exclusion size chromatography showed that the strong shear force applied during homogenization caused the largest polymer molecules to crack and thus slightly reduce the average molecular weight of the polymer matrix. Higher glass transition temperatures of composites compared to pure polymer matrices and their increase with increasing filler content, confirm the homogeneity of distribution and compatibility of nanocellulose with the investigated methacrylate matrices. The addition of nanocellulose increases the hydrophilicity of materials, which facilitates printing and may favor their use as packaging materials. This work is licensed under a Creative Commons Attribution 4.0 International License. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1334-9090 0022-9830 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f998a824b50bb53d3262e92b53e09d8 http://silverstripe.fkit.hr/kui/assets/Uploads/6-535-542-KUI-9-10-2021.pdf |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....7f998a824b50bb53d3262e92b53e09d8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13349090 00229830 |
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