Thermal properties and combustibility of elastomer–protein composites

Janowska, G.; Kucharska-Jastrząbek, Agnieszka; Prochoń, Mirosława; Przepiórkowska, A.

doi:10.1007/s10973-012-2796-2

Cited by 11 publications

(13 citation statements)

References 16 publications

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“…Moreover, they suggest that since the keratin filled composites have their water adsorption increased over time, also increasing electric conductance, they would be biodegradable after their use is expired (however, no biodegradability test was provided) [217]. They also observed similar results for systems with hair keratin and zinc oxide associated with styrene-butadiene rubber (SBR), describing improved resistance to thermooxidative aging, thermal and mechanical properties, and decreased flammability [218] and with nitrile-butadiene rubber and modified montmorillonite clay (MMC), observing increased water adsorption and thermal stability, and flammability decreased, proportionally, with increasing the keratin amount, while the mechanical properties were more dependent on the MMC amount [219]. Later on, the authors also produced a cellulosic-elastomeric material by coating cotton fibres with keratin and carboxylated styrene-butadiene latex (XSBL).…”

Section: Butadiene Copolymer Rubbersmentioning

confidence: 52%

Keratin Associations with Synthetic, Biosynthetic and Natural Polymers: An Extensive Review

Donato

Mija

2019

Polymers

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Among the biopolymers from animal sources, keratin is one the most abundant, with a major contribution from side stream products from cattle, ovine and poultry industry, offering many opportunities to produce cost-effective and sustainable advanced materials. Although many reviews have discussed the application of keratin in polymer-based biomaterials, little attention has been paid to its potential in association with other polymer matrices. Thus, herein, we present an extensive literature review summarizing keratin’s compatibility with other synthetic, biosynthetic and natural polymers, and its effect on the materials’ final properties in a myriad of applications. First, we revise the historical context of keratin use, describe its structure, chemical toolset and methods of extraction, overview and differentiate keratins obtained from different sources, highlight the main areas where keratin associations have been applied, and describe the possibilities offered by its chemical toolset. Finally, we contextualize keratin’s potential for addressing current issues in materials sciences, focusing on the effect of keratin when associated to other polymers’ matrices from biomedical to engineering applications, and beyond.

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Section: Butadiene Copolymer Rubbersmentioning

confidence: 52%

Keratin Associations with Synthetic, Biosynthetic and Natural Polymers: An Extensive Review

Donato

Mija

2019

Polymers

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“…There are several studies on composite materials using styrene-butadiene rubber (SBR), nitrile-butadiene rubber (NBR) and keratin from chicken feathers that revealed the influence of different variables on the thermal and mechanical behavior and the various valid tools for observing these variations [2,3,[10][11][12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of composites from copolymer styrene-butadiene and chicken feathers

et al. 2018

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Over five million tons of chicken feathers (CF) are generated all over the world by the poultry industry, with an immense potential to exploit. Keratin is an abundant protein found in chicken feathers that offers excellent thermal properties and it is durable, insoluble in organic solvents and chemically unreactive. Elastomers are materials with a wide application range, for instance, adhesives, shoe soles, plastic modifiers, tire industry, sealants, among others. However, it is necessary to improve their properties and mechanical performance at elevated temperatures. A good path to do so is to combine the elastomer with CF to obtain materials with enhanced properties. In present work, a composite based on styrene-butadiene (SB) elastomer and CF was prepared by means of melt mixing. Composites were characterized by FTIR, DSC, DMA and X ray diffraction techniques. The results show that there is an increase in stiffness of SB/CF composites compared with pure elastomer.

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“…The combustibility of composites was determined using the oxygen index method (OI), according to PN-ISO 4589-2, using a self-construction apparatus [6], and on the basis of flammability measurement in the air, using samples of the same dimensions (50 × 10 × 4 mm) as in the case of an oxygen index. The tests were carried out with constant nitrogen flow rate of 400 L h −1 , the oxygen flow was selected so that the sample tested was totally burned, including flame decay, within t = 180 s. The sample top was ignited for 15 s by means of a gas burner using a propane-butane mixture [27].…”

Section: Methods Of Testingmentioning

confidence: 99%

“…We deal with all kinds of biopolymers since 2002. The biopolimers which we are using in our investigations are keratin, collagen wastes of tanning industry, as well as bird feathers or potato protein which also are waste [5][6][7]. A small part of waste, from tannery or poultry industry, is used to produce, for example biogas or harmful animal feed.…”

Section: Introductionmentioning

confidence: 99%

Influence of modified biopolymers on thermal properties and biodegradation processes of carboxylated nitrile-butadiene (XNBR) nanocomposities

Prochoń

2020

J Therm Anal Calorim

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The presented study includes a comparison of the effect of fillers used in carboxylated nitrile butadiene rubber XNBR on the properties of the obtained polymer materials. Fillers used in this study originated from the tanning industry waste: cattle hair keratin, enzymatic hydrolyzate of cattle hair keratin and condensate of enzymatic hydrolyzate of cattle hair keratin. The use of commonly found in nature phyllosilicates allows to obtain nanocomposites. That is why in the presented study we used different mass fraction of layered silicate-montmorillonite. The dispersion of silicates in polymer matrices can be influenced by their physical and chemical modifications that lead to changes in the properties of the polymer matrices themselves. In the presented study the kinetics of vulcanization of elastomer blends was investigated, and the obtained XNBR rubber vulcanizates were analyzed for mechanical, optical, rheological, thermal analysis and their resistance to accelerated thermo-oxidative aging (S) and susceptibility to biodegrade were tested. The produced elastomer composites may be used in the rubber industry in the assortment of various types of washers, elastomer seals or conveyor belts-materials that often work under elevated temperature conditions. Therefore, it seems advisable to understand the thermal properties of this type of materials, eg for suitability in real conditions. Therefore, Thermogravimetry (TG), Differential Scanning Calorimetry (DSC), Oxygen Index (IO) analyzes have been carried out, showing that different mechanisms of decomposition occur in layers of fiber-enriched polymer composites than unrecoverable ones. The modified keratin also slightly decreases the glass transition temperature. In addition, the presence of a modified keratin in the XNBR elastomer structure increases the composites compliance with the biodegradation process.

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Thermal properties and combustibility of elastomer–protein composites

Cited by 11 publications

References 16 publications

Keratin Associations with Synthetic, Biosynthetic and Natural Polymers: An Extensive Review

Keratin Associations with Synthetic, Biosynthetic and Natural Polymers: An Extensive Review

Preparation and characterization of composites from copolymer styrene-butadiene and chicken feathers

Influence of modified biopolymers on thermal properties and biodegradation processes of carboxylated nitrile-butadiene (XNBR) nanocomposities

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