The modification of properties of thermoplastic starch materials: Combining potato starch with natural rubber and epoxidized natural rubber

Cai, Zhejing; Čadek, Drahomír; Šmejkalová, Pavla; Kadeřábková, Alena; Nová, Martina; Kuta, Antonín

doi:10.1016/j.mtcomm.2020.101912

Cited by 19 publications

(17 citation statements)

References 46 publications

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“…This fact stimulates the search for new materials for creating polymer composites with characteristics acceptable for their commercial use. As studies show [ 12 , 34 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 ] natural rubber (NR) additives have great potential for use as a component for initiating biodegradation processes in composites based on PE and other polymers [ 55 , 56 , 57 , 58 , 59 ]. NR-doped composites can be quite susceptible to biodegradation by a wide variety of microorganisms, including a wide variety of bacteria and molds [ 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 ].…”

Section: Composites Based On Polyethylene and Natural Rubbermentioning

confidence: 99%

Biodegradability of Polyolefin-Based Compositions: Effect of Natural Rubber

Varyan

Kolesnikova

et al. 2022

Polymers

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Recently, environmental problems caused by the overproduction and consumption of synthetic polymer materials led to an urgent need to develop efficient methods for processing plastics. The accumulation of polymer waste for their subsequent incineration does not solve the problem due to the limited areas of landfills for waste storage. In addition, the incineration of polymer waste can cause toxic air pollution, which, in turn, does not contribute to an improvement in the environmental situation. Recycling plastics, although a more environmentally friendly waste disposal method, requires significant labor and energy costs and can be performed a limited number of times. Thus, the most promising solution to this problem is the creation of biodegradable polymers capable of degradation with the formation of simpler chemical structures (water, carbon dioxide, biomass, etc.), which are easily included in the metabolic processes of natural biological systems. The article provides an overview of the main trends in the creation of biodegradable composites for the needs of agriculture. Also, the article proposes a new composition based on polyethylene with natural rubber that surpasses existing biodegradable materials in a number of physical and mechanical characteristics and has the ability to complete biodegradation in 60 months. It is shown that the studies carried out to date indicate that these composites are highly promising for the creation of biodegradable packaging materials with good performance characteristics. Thus, it was concluded that further research on composites based on polyethylene and natural rubber is important.

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Section: Composites Based On Polyethylene and Natural Rubbermentioning

confidence: 99%

Biodegradability of Polyolefin-Based Compositions: Effect of Natural Rubber

Varyan

Kolesnikova

et al. 2022

Polymers

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“…The association of natural rubber and TPS is of interest, but most publications available so far describe poor mechanical properties of the final materials essentially due to the inefficient compatibilization between both phases. A recent contribution of Cai and coworkers tackled this issue by inserting epoxidized natural rubber as a compatibilizing agent, which led to materials of good mechanical properties [ 56 ]. The influence of plasticizer type and content on the properties of TPS is also an object of investigation, which was the case for TPS blown films plasticized with bio-based xylitol and sorbitol, whose tensile strength, stiffness, and water vapor and oxygen barrier properties were superior when compared with those of the corresponding TPS prepared solely with glycerol [ 51 ].…”

Section: It All Started With Natural Polymersmentioning

confidence: 99%

Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives

Gandini

Lacerda

2021

Molecules

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A progressively increasing concern about the environmental impacts of the whole polymer industry has boosted the design of less aggressive technologies that allow for the maximum use of carbon atoms, and reduced dependence on the fossil platform. Progresses related to the former approach are mostly based on the concept of the circular economy, which aims at a thorough use of raw materials, from production to disposal. The latter, however, has been considered a priority nowadays, as short-term biological processes can efficiently provide a myriad of chemicals for the polymer industry. Polymers from renewable resources are widely established in research and technology facilities from all over the world, and a broader consolidation of such materials is expected in a near future. Herein, an up-to-date overview of the most recent and relevant contributions dedicated to the production of monomers and polymers from biomass is presented. We provide some basic issues related to the preparation of polymers from renewable resources to discuss ongoing strategies that can be used to achieve original polymers and systems thereof.

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“…In this way, the aggregation of filler will promote the formation of the internal stress concentration of composite, therefore, the ability of composites to resist external forces has been reduced. [53][54][55][56] In common, the mechanical properties of rubber-matrix composites depend on the dispersibility of filler and the interaction between filler and rubber-matrix. 53 The dispersibility and wettability of CB-g-CTHBP's in rubber-matrix demonstrate obvious improvement after grafted with hyperbranched polymer, and the interaction has also increased between the fillers and rubber-matrix.…”

Section: Effect Of Cb and Cb-g-cthbp Content On The Rubber-matrix Composites Mechanical Propertiesmentioning

confidence: 99%

Preparation and mechanical properties of water‐dispersible hyperbranched polymer grafted carbon black/natural rubber composites by latex blending method

Han

Zhang

et al. 2021

Polymers for Advanced Techs

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In order to improve the mechanical properties of rubber-matrix composites, carboxyl-terminated hyperbranched poly (2-hydroxypropane-1,2,3-tricarboxylic acid) grafted carbon black (CB-g-CTHBP) was prepared, and it could be stably dispersed in water for up to 90 days. CB-g-CTHBP dispersion and natural rubber latex were blended to obtain NR/CB-g-CTHBP, and the effect of CB-g-CTHBP content on the mechanical properties of composites was discussed. The results show that the dispersibility and wettability of CB-g-CTHBP to composites are significantly improved after grafting hyperbranched polymer onto the surface. Compared with the composite filled with NR/CB, when the amount of filler is 30 phr, tensile strength, tear strength, and shore A hardness of NR/CB-g-CTHBP increase by 54.78%, 55.13%, and 20.96%, respectively. Moreover, CB-g-CTHBP could disperse more evenly in the natural rubber-matrix, and the interaction between CB-g-CTHBP and rubber-matrix could further enhance in the composite.

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The modification of properties of thermoplastic starch materials: Combining potato starch with natural rubber and epoxidized natural rubber

Cited by 19 publications

References 46 publications

Biodegradability of Polyolefin-Based Compositions: Effect of Natural Rubber

Biodegradability of Polyolefin-Based Compositions: Effect of Natural Rubber

Monomers and Macromolecular Materials from Renewable Resources: State of the Art and Perspectives

Preparation and mechanical properties of water‐dispersible hyperbranched polymer grafted carbon black/natural rubber composites by latex blending method

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