Autor: Hu, C. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The plasticizing effect of properties of manganous chloride and glycerin on poly(vinyl alcohol)
Autorzy:: Jia, P.
Zhang, M.
Bo, C.
Hu, L.
Zhou, Y.
Powiązania:: https://bibliotekanauki.pl/articles/778667.pdf
Data publikacji:: 2015
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: poly(vinyl alcohol)
glycerin
manganous chloride
blend
film
Opis:: Poly(vinyl alcohol) films were prepared with manganous chloride (MnCl₂ · 4H₂O) and glycerin as complex plasticizer. The micro morphology of pure PVA film and complex plasticizer plasticized PVA films was observed by scanning electron microscope (SEM). The interaction between complex plasticizer and PVA molecules was investigated by Fourier transform infrared spectroscopy (FT-IR). The influence of complex plasticizer on crystalline, thermal and mechanical properties of PVA films was studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TG), and tensile testing, respectively. The results showed that the complex plasticizer of MnCl₂ · 4H₂O/glycerin could interacted with PVA molecular and then effectively destroy the crystals of PVA. PVA films plasticized with complex plasticizer of MnCl₂ · 4H₂O/glycerin became soft and ductile, with lower tensile strength and higher elongation at break compared with PVA films. This is an important cause of plasticization of the complex plasticizer of MnCl2 · 4H₂O/glycerin on PVA films.
Źródło:: Polish Journal of Chemical Technology; 2015, 17, 2; 29-33
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Evaluation on Curing Properties and Kinetics of Isophthalonitrile Oxide
Autorzy:: Fan, Y.
Tang, C.
Hu, Q.
Lei, Y.
Huo, J.
Powiązania:: https://bibliotekanauki.pl/articles/780045.pdf
Data publikacji:: 2018
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: N,N-dihydroxybenzene-1,3-dicarboximidoyl dichloride
kinetics
elastomer
synthesis
1,3-dipolar cycloaddition
Opis:: N,N-dihydroxybenzene-1,3-dicarboximidoyl dichloride was synthesized from benzene-1,3-dicarboxaldehyde and characterized by fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance ¹H and ¹³C NMR). The elastomer was prepared through the 1,3-dipolar cycloaddition of reaction between liquid polybutadiene (LPB) and isophthalonitrile oxide in this work. The tensile strength of different elastomer was enhanced from 0.14 MPa to 0.33 MPa as the elongation at break decreased from 145% to 73%, and the modulus increased from 0.09 kPa to 0.47 kPa. The parameters of kinetic indicated that the curing reaction was first order reaction and the apparent activation energy of each curing system was less than 10.10 kJ/mol when the content of N,N-dihydroxybenzene-1,3- dicarboximidoyl dichloride was increased from 7% to 12%. These results suggested that nitrile oxides achieved curing of polymer binders at room temperature and this work had definite guiding significance for the application of nitrile oxides in polymer binders.
Źródło:: Polish Journal of Chemical Technology; 2018, 20, 3; 37-46
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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