Деревна тирса плюс силільовані стирольні композити з низьким водопоглинанням

2022;
: cc. 377 - 386
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1 Iv. Javakhishvili Tbilisi State University, 2 Institute of Macromolecular Chemistry and Polymeric Materials, Iv. Javakhishvili Tbilisi State University
2
Department of Materials Science and Engineering, University of North Texas
3
Institute of Macromolecular Chemistry and Polymeric Materials, Iv. Javakhishvili Tbilisi State University
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Department of Macromolecular Chemistry, Ivane Javakhishvili University, Institute of Macromolecular Chemistry and Polymeric Materials, Ivane Javakhishvili University
5
1 Iv. Javakhishvili Tbilisi State University, 2 Institute of Macromolecular Chemistry and Polymeric Materials, Iv. Javakhishvili Tbilisi State University
6
Iv. Javakhishvili Tbilisi State University, 2 Institute of Macromolecular Chemistry and Polymeric Materials, Iv. Javakhishvili Tbilisi State University
7
Department of Civil Engineering, College of Engineering, Bartin University

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.

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