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Деревна тирса плюс силільовані стирольні композити з низьким водопоглинанням

Omari Mukbaniani1, 2, Witold Brostow3, Jimsher Aneli2, Levan Londaridze1, 2, Eliza Markarashvili1,2, Tamara Tatrishvili1, 2, Osman Gencel4
Affiliation: 
1 Department of Macromolecular Chemistry, Ivane Javakhishvili University, Ilia Chavchavadze Blvd. 1, Tbilisi 0179, Georgia 2 Institute of Macromolecular Chemistry and Polymeric Materials, Ivane Javakhishvili University, Ilia Chavchavadze Blvd. 13, Tbilisi 0179, Georgia 3 Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science and Engineering, University of North Texas, 3940 North Elm Street, Denton, TX 76207, USA 4 Department of Civil Engineering, College of Engineering, Bartin University, Bartin 74100, Turkey wkbrostow@gmail.com
DOI: 
https://doi.org/10.23939/chcht16.03.377
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Keywords:

Abstract: 
На основі деревної тирси та силільованого стирену як вʼяжучого, що діє одночасно і як зміцнюючий агент, виготовлені екологічно чисті композити. Досліджено структуру поверхні композитів за допомогою скануючої електронної мікроскопії та енергодисперсійного рентгенівського мікроаналізу. Встановлено, що міцність на згин збільшується з підвищенням температури від 453 до 493 К при постійному тиску 15 МПа. Показана можливість перебігу гетерогенних реакцій між активними групами триетоксисилільованого стирену та тирсою, які призводять до збільшення просторової (на питомий об’єм) концентрації хімічних зв’язків. Ударна в'язкість збільшується в тому ж діапазоні температур від 14,6 до 25,8 кДж/м2. Поглинання води, визначене через 3 і 24 години, змінюється в широкому діапазоні. Найнижче значення становить 4,1 мас.% води через 24 години.
References: 

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