Content:
Leather manufacturing involves discharge of large quantities of solid and liquid wastes. While efficient recycling methods and in-plant controls have considerably reduced the discharge of obnoxious liquid
streams, satisfactory methods to the solid waste management still elude the leather manufacturers. Landfilling is an easy option for the disposal of solid wastes like chrome shavings and trimmings, but is
subjected to stringent environmental regulations because of the presence of chromium in these materials. Considerable efforts have been made to recycle the chrome containing wastes by methods such as
incineration, pyrolysis and alkaline or enzyme hydrolysis. These recycling processes, however, are seldom complete without further environmental problems. Unfortunately, in such recycling processes the inherent fibrous structure of these materials gets completely destroyed. Applications based on the fibrous nature of the shavings and trimmings are presently limited but various possibilities are being explored continuously. An efficient way of utilization of these fibrous waste materials may be to combine them in a suitable form with synthetic polymers to give composite materials. Short fiber reinforcement of polymers is an important area in polymer composites where both synthetic and natural fibers are effectively used.
Footwear has become a basic necessity like food, shelter and clothes. Soles are bottom components of footwear and some important polymeric materials used in footwear fabrication are last, soles and Insoles. This research aims at reducing the solid waste (Chrome shavings) generated by leather industry and reusing them as low cost shoe components such as soles and insole material. In this research, the footwear components were prepared using chrome shaving (tannery solid waste), EPDM (ethylene propylene monomer rubber) and isoprene rubber with different inorganic oxide/hydroxide nano particle
based fillers. In this study, soles are prepared by using strap cutting machine, two roll mill and compression moulding machine. The soling materials made characterised using FT-IR and SEM and tested for mechanical properties.
Due to good mutual compatibility between Isoprene, EPDM and leather fibre with inorganic nano clay based fillers, the composites are well in terms of all the physic-mechanical behaviours like hardness,
density, abrasion resistance and grain crack suitable for shoe sole application.
Take-Away:
1. Ethylene propylene monomer rubber and leather fibre with inorganic nano clay based fillers, the composites are well in terms of all the physic-mechanical behaviours like hardness, density, abrasion
resistance and grain crack suitable for shoe sole application.
2. An efficient way of utilization of these fibrous waste materials may be to combine them in a suitable form with synthetic polymers to give composite materials. Short fiber reinforcement of polymers is an
important area in polymer composites where both synthetic and natural fibers are effectively used.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:34331 |
| Date | 25 June 2019 |
| Creators | Gupta, Sanjeev, Ponsubbiah, S., Gupta, S. K., Mandal, Sujata |
| Contributors | International Union of Leather Technologists and Chemists Societies |
| Publisher | Verein für Gerberei-Chemie und -Technik e. V., Forschungsinstitut für Leder und Kunststoffbahnen (FILK) gGmbH |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:conferenceObject, info:eu-repo/semantics/conferenceObject, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | urn:nbn:de:bsz:14-qucosa2-340872, qucosa:34087 |
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