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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Investigation of isophorone diisocyanate oligoisocyanurate effect on water dispersible polyurethane propertiesстатья
- Авторы: Karpov S.V., Dzhalmukhanova A.S., Chernyayev D.A., Lodygina V.P., Komratova V.V., Malkov G.V., Badamshina E.R.
- Журнал: BULLETIN OF THE UNIVERSITY OF KARAGANDA-CHEMISTRY
- Том: 97
- Номер: 1
- Год издания: 2020
- Первая страница: 43
- Последняя страница: 51
- DOI: 10.31489/2020ch1/43-51
- Аннотация: Oligoisocyanurates (OIC) are the products of various diisocyanates cyclotrimerization reaction, with their functionality being more than three (potential crosslinking agents). They are applicable in chemical polymer industry as an additive to diisocyanates for polyurethane coatings obtaining with various properties, as well as anisocyanate-containing component on its own for polyurethane synthesis. The OIC-based polymers possess anumber of unique properties, e.g. improved thermal stability, fire resistance, UV resistance, also they are notexpected to undergo hydrolysis. We studied the effect of isophorone diisocyanate oligoisocyanurate content onhydrodynamic, thermo-mechanical and thermal properties of resulting water dispersible polyurethanes. Samples of water dispersible polyurethanes containing isophorone diisocyanate (IPDI), poly (butylene adipate)(PBA) and 2,2-dimethylolpropionic acid (DMPA) were prepared following acetone method for this purpose,with IPDI OIC amount being 10–30 wt.% per pure IPDI. IPDI OIC was partially blocked with morpholine toexclude crosslinking in WDPU synthesis. Dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), and dynamic light scattering (DLS) were used to characterize the polymers obtained. It was established that oligoisocyanurates improve the characteristics of both water dispersible polyurethanes and theirpolymer films. Moreover, oligoisocyanurates prevent polyurethane coatings crystallization due to its branchedstructure, which without a doubt will affect their performance positively.
- Добавил в систему: Малков Георгий Васильевич