Thermoplastic corn starch reinforced with pine wood fibre and calcium carbonate precipitate filler

Abstract

The shortage of oil and related minerals and also their extreme environmental drawbacks are the main reason for the quick-growing interest in biodegradable polymer composites production. Biodegradable polymer composites are mainly produced from renewable resources which are biologically degradable. In this research, corn starch was plasticized with glycerol. The plasticized thermoplastic corn starch was reinforced with calcium carbonate precipitate powder as a filler and pine wood fibre as reinforcement. Free thermoplastic plasticized corn starch (FTPS), thermoplastic corn starch reinforced with calcium carbonate (CTPS), thermoplastic corn starch reinforced with pine wood (WTPS), thermoplastic corn starch reinforced with pine wood fibre and calcium carbonate precipitate hybrid composite (HTPS) were produced and compared for their mechanical properties like tensile strength and, hardness. DSC and DMA analysis were also done for determining their thermal properties. Moreover, the water absorption test was also carried out to understand their resistance to moisture. WTPS exhibits better results in most of the measured proprieties given that TPS and wood fibre being both hydrophobic resulted in a homogeneous distribution and better interfacial adhesion.

Evaluation of the use of banana pseudostem with thermoplastic corn starch for the elaboration of biodegradable dishes

“…The TPS presented a higher Tm with 135.78 °C that corresponds to Sikora et al (2020) The mixture of the T8 dish presented a lower Tm 121.72 °C due to the addition of fibers creating adherence compatibility with the TPS interface. However, the addition of calcium carbonate did not indicate a significant effect on Tg (Gerezgiher et al, 2020). The energy absorbed in the diagrams was lower for T8 with 78.91 J/g, increasing in TPS and NS with 106.3 and 261.0 J/g, respectively.…”

Mechanical properties of starch bio-composite and molded pulp samples manufactured using pine and eucalyptus fibers

“…The study showed WTPS had better mechanical performance among these combinations. 22 In the previous study, a composite comprised of TPS (corn starch) and Eucalyptus urograndis fibers was investigated. Samples are produced by compression molding of a batch which is prepared by a mixer (at 80 rpm, 170°C operating heat).…”

Synthesis and characterization of alkali-activated zeolite-poor rocks

“…Kaolin, clays, feldspars, quartz, zeolite and Al2O3 are mostly used materials in the production of ceramics [1][2][3][4][5][6]. The research in ceramics industries has progressed significantly in recent years [7][8][9][10]. Modern ceramic technologies attempt to generate outstanding ceramic products from relatively affordable raw materials to achieve the best costbenefit ratio possible in today's industry [11][12][13].…”