Struktura i właściwości poliamidu 6 modyfikowanego montmorylonitem

• Autorzy: Kelar K. , Jurkowski B. , Haponiuk J.

Warianty tytułu

EN

Structure and properties of polyamide 6 modified a montmorillonite

• Języki publikacji: PL

Abstrakty

PL

W artykule przedstawiono badania struktury i właściwości poliamidu 6 (PA6) niemodyfiko-wanego i modyfikowanego montmorylonitem. Metodą hydro litycznej polimeryzacji ^-kaprolakta-mu w obecności modyfikowanego jonami organicznymi montmorylonitu otrzymano hybrydę poliamidowo-montmorylonitową (PACH). Stosując jednoślimakową wytłaczarkę Brabender, do której był zamontowany prototypowy mieszalnik dynamiczny, mieszaninę PACH i PA6 wytłaczano w atmosferze azotu. Wytłoczyny granulowano i wtryskiwano znormalizowane próbki do badań. Badania właściwości PA6 i PA6/MMT obejmowały: właściwości cieplne (DSC, TGA, DMTA), badania rentgenowskie, właściwości mechaniczne (wytrzymałość na rozciąganie, udamość metodą Charpy'ego) oraz chłonność wody. Nanokompozyt PA6/MMT ma większą wytrzymałość na rozciąganie i większy moduł, ale mniejsze wydłużenie i mniejszą udarność niż niemodyfikowany PA6. Stabilność termiczna nanokompozytu PA6/MMT jest większa, a chłonność wody mniejsza niż niemodyfikowanego PA6.

EN

The paper presents the results of investigations of structure and properties of polyamide 6 (PA6) nonmodified and modified with montmorillonite. The polyamide/clay hybrid (PACH) was prepared by in situ hydrolytic polymerization of e-caprolactam in the presence of organic modified montmorillonite. Next, the PACH and PA6 were extruded in a Brabender single-screw extruder equipped with the prototype dynamic mixer. The product was granulated and, then, injection molded into standard specimens. In this work thermal behavior (DMTA, DSC, TGA), X-ray diffraction, mechanical properties (tensile strength, Charpy's notched impact strength) and sorption of water of both PA6 and PA6/MMT nanocomosite were studied. Nanocomposite PA6/MMT exhibited higher yield strength and moduli, lower elongation at break and lower impact strength. The heat stability of the PA6/MMT nanocomosite was higher than that for neat PA6. Sorption of water by PA6/MMT nanocomosite was lower than that by neat PA6.

Słowa kluczowe

PL

poliamid; montmorylonit; struktura; właściwości fizykochemiczne

EN

polyamide; montmorillonites; nanocomposites; structure; physicochemical properties

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Archiwum Technologii Maszyn i Automatyzacji
• Rocznik: 2005
• Tom: Vol. 25, nr 1
• Strony: 203--218
• Opis fizyczny: Bibliogr. 50 poz.

Twórcy

autor

Kelar K.

• Instytut Technologii Materiałów Politechniki Poznańskiej

autor

Jurkowski B.

• Instytut Technologii Materiałów Politechniki Poznańskiej

autor

Haponiuk J.

• Katedra Technologii Polimerów Politechniki Gdańskiej

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