Characterisation of polyamide (PA)12 nanocomposites with montmorillonite (MMT) filler clay used for the incremental forming of sheets

Borić, Andrej (author), Kalendová, Alena (author), Urbanek, Michal (author), Pepelnjak, Tomaž (author)

In this paper, the preparation and characterisation of polymer materials suitable for single point incremental forming (SPIF) technology were performed. Three different kinds of mixtures were selected: a mixture of neat polyamide 12 (PA12), a nanocomposite with PA12 matrix and 1% clay (Cloisite 93A), and a nanocomposite with PA12 matrix and 3% clay (Cloisite 93A). Materials were produced using a melt intercalation method followed by compression moulding. According to the needs of SPIF technology, morphological and mechanical properties were investigated in the obtained mixtures. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to characterize morphological properties. It was determined that the most desired obtained exfoliated structure of clay in the polymer matrix was achieved. Static tensile testing and dynamic mechanical analysis as well as the determination of glass transition temperature and crystallinity of all analysed materials were used to obtain mechanical and thermal properties of the mixtures. The results obtained for each mixture were compared with respect to the content of clay. The content of clay (Cloisite 93A) showed a strong influence on the properties of the obtained materials. The presence of clay (Cloisite 93A) affected the increase of tensile strength and Youngʼs modulus, while its influence on the attained elongation was not unique.

• Language: English
• Keywords: polymers, nanocomposites, polyamide, PA12, clays, Cloisite 93A, morphology, mechanical properties
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2019
• Number of pages: 20 str.
• Numbering: Vol. 11, iss. 8, art. 1248
• PID: 20.500.12556/RUL-111227
• UDC: 621.7:678(045)
• ISSN on article: 2073-4360
• DOI: 10.3390/polym11081248
• COBISS.SI-ID: 16803611
• Publication date in RUL: 26.09.2019

Record is a part of a journal

• Title: Polymers
• Shortened title: Polymers
• Publisher: MDPI
• ISSN: 2073-4360
• COBISS.SI-ID: 517951257

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 01.08.2019

Secondary language

• Language: Slovenian
• Keywords: poliamid PA12, glina, Cloisite 93A, nanokompoziti, inkrementalno preoblikovanje, mehanske lastnosti