Preparation and Evaluation of Basic Properties of PVC/PVB/clay Nanocomposites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F17%3A63517346" target="_blank" >RIV/70883521:28110/17:63517346 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Preparation and Evaluation of Basic Properties of PVC/PVB/clay Nanocomposites

Original language description

The main aim of this study was the comparison of mechanical properties, hardness and TEM of blends of plasticized poly(vinyl chloride) (PVC) with poly(vinyl butyral) (PVB) [1, 2]. The possibility of the re-use of recycled PVB from waste of windshields was studied. Nanocomposites of PVC/PVB/clay (montmorillonite MMT), prepared by melting and mixing in a twin-screw extruder were evaluated. PVC plasticized with 38 % of diisononyl phthalate (DINP), and PVB plasticized with 28 % of triethylene glycol, bis(2-ethylhexanoate) (3GO) and recycled PVB (rec. PVB) were tested [3]. The filler as an organically modified MMT with tradenames Cloisite 93A and 30B were used. The concentration of all the above-mentioned fillers added to the polymeric matrix was 3, 5 and 7 wt. %. Blends used for the determination of basic properties of PVB/PVC mixtures in various ratio were prepared in continual BUSS extruder with two kneading chambers. Process conditions were 160 °C of temperature and rotation speed 55 rpm [4, 5]. The high PVB molecular weight can provide very high tensile strength of material. Measurement showed that fillers do not deteriorate mechanical properties and hardness of filled PVC/recycled PVB blends. The same fact was also observed for fillers in virgin PVB. As was shown by TEM analyses - the nanofiller achieves a definite degree of intercalation. The improvement of mechanical properties in scale from 60 – to 90 % of PVB was probably caused by mentioned high molecular weight of PVB (Fig. 1).

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů