Influence of water addition on mechanical properties of thermoplastic starch foils

Chocyk, Dariusz; Gładyszewska, Bożena; Ciupak, A.; Oniszczuk, Tomasz; Mościcki, L.; Rejak, A.

doi:10.1515/intag-2015-0031

Cited by 16 publications

(11 citation statements)

References 23 publications

(26 reference statements)

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“…The use of biomass potential for heating purposes in the municipal and housing sector should include not only compacted biomass fuel, but also biomass fuels with low heating value and bulk density as well as waste biomass generated during the production of high calorific value food [4][5][6][7][8][9], based on effective and low emission fuel power units suitable for small scale applications (individual farms and district heating networks) [10].…”

Section: Introductionmentioning

confidence: 99%

Chemical Characteristics of Biomass Ashes

et al. 2018

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The aim of the conducted research was to obtain information on the main components of ashes from 35 biomass species used in combustion processes to obtain reference data for the development of utility possibilities for these ashes, with particular emphasis on agricultural use. The examined biomass samples were divided into groups depending on origin: woody biomass and energetic woody plants I-WWB, herbaceous and grassy energy plants II-EC, agricultural waste III-AR, forest waste IV-FR and waste from the agri-food industry V-AFIW. The analysis of the studied elements contents was carried out in the designated groups. The chemical composition of ash was dominated by the macroelements Ca, K, P and S, which suggests the possibility of their agricultural use. At the same time, the low content of toxic elements such as As and Pb should not be a limiting feature in their use, with the exception of wood biomass. In addition, ashes obtained from the biomass combustion were enriched with microelements such as Zn, Cu and Mn, which further increases their possibilities of fertilizer use. The potential use of ash from each type of biomass in the aspect of its chemical composition should be considered individually, regardless of the division into groups depending on the origin of biomass.

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Section: Introductionmentioning

confidence: 99%

Chemical Characteristics of Biomass Ashes

et al. 2018

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“…One of the groups of biodegradable materials has a natural origin and is produced from various types of starch (Combrzyński et al, 2018b;Chocyk et al, 2015;. Starch has many possible applications, for example, in the food, paper, textile, and pharmaceutical industries.…”

Section: Introductionmentioning

confidence: 99%

Effect of starch type and screw speed on mechanical properties of extrusion-cooked starch-based foams

Combrzyński¹,

Wójtowicz²,

Mitrus³

et al. 2019

Int. Agrophys.

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Potato starch and corn starch are popular basic raw materials in the processing of biopolymers. One of the processing methods employed in the manufacture of biopolymers is extrusion-cooking technique. With specific parameters and equipment configurations, it is possible to obtain a wide variety of starch-based biopolymers. Loose fill foams are usually produced with the use of polystyrene, but the adverse environmental effects of conventional plastics provide an incentive for the development of new, environmentally friendly raw materials. The aim of the study was to apply the extrusion-cooking technique to prepare starch-based foams from potato starch and corn starch under various extruder screw speeds applied during processing. Process efficiency and energy consumption were also tested during processing. The expanded foams were analysed by means of cutting and compression tests to evaluate selected mechanical properties. The type of starch used and the processing screw speed had an impact on the efficiency and specific energy requirements of the process. The results showed that the screw speed had a significant effect on the cutting forces in the tested foams as well as on its compression properties. Higher hardness of foams was observed when potato starch was used as the basic raw material. Moreover, corn starch foams proved to be more elastic in compression tests. K e y w o r d s: corn starch, potato starch, foams, compression test, elastic modulus

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“…PLA can be obtained from starch-rich materials such as some cereals (wheat, corn) and some roots (beetroot, cassava, yucca, etc.). 16 Industrial formulations of TPS need certain amounts of a plasticizer such as water 17,18 , glycerol, sorbitol, xylitol, glucose, or combinations 19,20 to improve ductility, cohesion, elongation at break, and resistance to retrogradation as well as to increase the overall thermal stability. To overcome these drawbacks, different strategies have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Poly(lactic acid) formulations with improved toughness by physical blending with thermoplastic starch

Ferri

Garcia‐Garcia

Carbonell‐Verdu

et al. 2017

J of Applied Polymer Sci

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This work focuses on poly(lactic acid) (PLA) formulations with improved toughness by physical blending with thermoplastic maize starch (TPS) plasticized with aliphatic-aromatic copolyester up to 30 wt %. A noticeable increase in toughness is observed, due to the finely dispersed spherical TPS domains in the PLA matrix. It is worth to note the remarkable increase in the elongation at break that changes from 7% (neat PLA) up to 21.5% for PLA with 30 wt % TPS. The impact-absorbed energy is markedly improved from the relatively low values of neat PLA (1.6 J m 22 ) up to more than three times. Although TPS is less thermally stable than PLA due to its plasticizer content, in general, PLA/TPS blends offer good balanced thermal stability. The morphology reveals high immiscibility in PLA/TPS blends, with TPS-rich domains with an average size of 1 lm, finely dispersed which, in turn, is responsible for the improved toughness.

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Influence of water addition on mechanical properties of thermoplastic starch foils

Cited by 16 publications

References 23 publications

Chemical Characteristics of Biomass Ashes

Chemical Characteristics of Biomass Ashes

Effect of starch type and screw speed on mechanical properties of extrusion-cooked starch-based foams

Poly(lactic acid) formulations with improved toughness by physical blending with thermoplastic starch

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