Abstract
Abstract 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.
Highlights
chicken feathers (CF) are considered a waste byproduct from poultry their mechanical properties decrease
The results show that there is an increase in stiffness of SB/CF composites compared with pure elastomer
The results of infrared spectroscopy by Attenuated Total Reflectance (ATR), not conclusive, are useful to know more about the chemical interaction between the polymeric matrix and the keratin used as reinforcement
Summary
CF are considered a waste byproduct from poultry their mechanical properties decrease. The main fibers attributes, such as impact resistance, thermal oxidation, component of CF is keratin, a protein with good thermal physicochemical and mechanical properties, their reinforcement and mechanical properties, which is resistant to the has been considered by using an elastomeric SB copolymer, action of organic solvents. 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. This fact has generated the investigation of keratin as raw material for synthetic polymer blends, because of its unique properties such as lightweightness, In present work, a composite based on SB copolymer and CF was prepared by melt mixing, studying 3 types of SB copolymers (varying styrene content), keeping constant chicken feather amount. The barbules were removed with cutters barrel and quill (the main component of CF is keratin), was grinded in both sides of the feather
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