Composites containing acetylated wheat B-starch for agriculture applications

Šárka, Evžen; Kruliš, Zdeněk; Kotek, Jiřı́; Růžek, L.; Voříšek, K.; Koláček, J.; Hrušková, Kateřina; Růžková, M.; Ekrt, O.

doi:10.17221/287/2012-pse

Cited by 12 publications

(6 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The development of starch‐based degradable plastic will not only contribute to protecting the environment and saving resources, but also be beneficial to increasing farmers' income, promoting the rural economic development and being helpful for social harmony in all parts of the world. Though, starch/EVA composite materials have been studied on hot melt adhesive, drug‐releasing material, film, and so on 6–10, few studies are concerned with foams, especially foamed sole materials.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of starch/EVA composite foams with surface modified kaolin

Zheng

Zhang

et al. 2013

Starch Stärke

View full text Add to dashboard Cite

Starch/EVA (ethylene-vinyl acetate copolymer)/modified kaolin nanocomposite foaming materials were prepared. The modified kaolin was obtained by g-methylacryloyl oxypropyl trimethoxysilane (silane coupling agent KH-570) as the nucleating agent. The effects of the modified kaolin were analyzed by activation index, and the structure was characterized by Fourier transform infrared (FT-IR) and SEM. The effects of modified kaolin on the mechanical properties and the cellular structure of the composite foams were also studied. According to the results, when 1.8 phr (parts per hundert parts of resin) silane coupling agent KH-570 modified kaolin, the activation index was 100%. It was found that the modified kaolin played an important role in the formation of the microstructure and the mechanical properties of the composites foams. Modified kaolin could increase the amount of the cells and reduce cell size significantly. The optimum tearing strength of the composite foams was 12.78 kg/cm with 20 phr modified kaolin added. The results were attributed to the nucleation effect of the modified kaolin particles, the high melt viscosity and the complex interface interactions between EVA chains and kaolin particles.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of starch/EVA composite foams with surface modified kaolin

Zheng

Zhang

et al. 2013

Starch Stärke

View full text Add to dashboard Cite

show abstract

“…Mezi polymery používané spolu se škrobem patří např. polykaprolakton, ethylenvinylacetát nebo polyethylen 44,46 . Nově vyvíjené bioplasty s všestranným využitím lze po uplynutí jejich životnosti výhodně využít spolu s dalším organickým odpadem ke kompostování.…”

Section: Biopolymery Na Bázi šKrobuunclassified

Ecological Aspects and Applications of Starch

et al. 2023

View full text Add to dashboard Cite

The article characterizes starch as an important raw material for various technologies. The properties of native starches (e.g. solubility, rheological properties or retrogradation) are not suitable for the given purpose in some cases and are therefore modified – physically, chemically or biochemically. The use of derivatives modified in such a way in food production, as well as for their technical use is indicated. The so-called "clean-label" starches represent a relatively new group, not marked with the E index in food (they are not chemically modified). Their advantage lies in that they respect the environment, not producing chemical by-products. However, their application by manufacturers requires caution to avoid excessive energy consumption and the resulting production costs. In the article, the main attention is paid to the ecological use of native and modified starch – for the production of biogas, bioethanol, biobutanol, as a flocculant, as a part of photocatalytic surfaces, formulation of biodegradable plastics and as an adsorbent. In addition to the literature review, examples of the research in this area at the Department of Carbohydrates and Cereals at the University of Chemistry and Technology are given.

show abstract

“…Wheat starch is found to have two types of granules, namely A‐starch (size 20–30 μm) and B‐starch (size 2–8 μm). According to Šárka et al acetylation to B‐starch improves the mechanical performance of B‐starch/Poly‐(ɛ‐caprolactone) composites. Tensile modulus of the materials increased with the increase of B‐starch content and yield stress, stress at break and fracture strain have reduced with increasing filler content.…”

Section: Properties Of Thermoplastic Starch and Compositesmentioning

confidence: 99%

A review on present status and future challenges of starch based polymer films and their composites in food packaging applications

2016

View full text Add to dashboard Cite

In recent years, interest in agro polymers has created great interest among researchers and industry alike, as these materials are found to be biodegradable and eco‐friendly. Since the fossil fuel based polymers have created greater environmental concern, these bio‐based polymers are addressing the concerns in some of impactful areas such as food packaging and contribute significantly to the sustainable development with minimum ecological problems. Among agro polymers, starch based polymers have made major stride to marketable products in food packaging field. It is estimated that by the year 2020, the biocomposite materials demand will touch 20% of total plastic utilization. This review enlightens various processing techniques used to produce starch based polymers and composites with their properties to address the poor properties of starch. Low toxic and good compatibility natural plasticizers are of great interest in the processing of thermoplastic starch (TPS). Further emphasis is also given on essential packaging film properties such as barrier, biodegradation, mechanical, and thermal properties for TPS based materials. The overview of literature indicates that, Final properties of the thermoplastic starch can be improved by using different fillers, as well as by changing the source of the starch. Since the quest to produce better, cheaper, and eco‐friendly materials never stops, a multidisciplinary approach is required to achieve further improvement in the existing materials and to produce new class of materials that are eco‐friendly which can extend smarter and efficient services to customers. POLYM. COMPOS., 39:2499–2522, 2018. © 2016 Society of Plastics Engineers

show abstract

Composites containing acetylated wheat B-starch for agriculture applications

Cited by 12 publications

References 13 publications

Preparation and characterization of starch/EVA composite foams with surface modified kaolin

Preparation and characterization of starch/EVA composite foams with surface modified kaolin

Ecological Aspects and Applications of Starch

A review on present status and future challenges of starch based polymer films and their composites in food packaging applications

Contact Info

Product

Resources

About