Chemically Modified Castor Oil for Softening of Leather– A Novel Approach

IF 0.6 4区 工程技术 Q4 CHEMISTRY, APPLIED Journal of The American Leather Chemists Association Pub Date : 2021-04-01 DOI:10.34314/jalca.v116i4.4283
B. Sahu, M. Sathish, G. Jayakumar
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Abstract

Fatliquoring is an important step of post tanning process of leathermanufacturing where incorporation of self-emulsified oil (lubricant)makes the leather soft. There are several methods which introducepolarity into oil and provide the path where reactive species ofmodified oil can interact with water which leads to form a fatliquor.The aim of this work is to introduce an extra polarity into the fattyacid moiety through chemical modification of castor oil by carbeneintermediate. The spectroscopic characterisation such as FTIR,1H-NMR and 13C-NMR of fatliquor have been carried out. Particle size analysis of fatliquor has also been done. The experimental leathers have been tested for physical strength characterisation such as tensile and tear strength verses control and found to have better properties than control. SEM analysis for morphological study of experimental leather were also carried out which clearly indicates the uniform dispersion of fiber bundles due to the fine distribution of the novel and self-emulsifying fatliquor throughout the matrix.
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化学改性蓖麻油软化皮革的新方法
加脂是制革后制革过程中的一个重要步骤,加入自乳化油(润滑剂)使皮革柔软。有几种方法将极性引入油中,并提供了改性油的活性物质与水相互作用的途径,从而形成加脂剂。本研究的目的是通过对蓖麻油进行碳烯中间体的化学改性,在脂肪酸部分引入一个额外的极性。对加脂液进行了FTIR、1H-NMR和13C-NMR等光谱表征。对加脂液进行了粒度分析。实验皮革已经测试了物理强度特性,如拉伸和撕裂强度与控制相比,发现具有比控制更好的性能。对实验皮革的形貌进行了扫描电镜分析,结果清楚地表明,由于新型自乳化加脂剂在整个基体中的精细分布,纤维束分布均匀。
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来源期刊
Journal of The American Leather Chemists Association
Journal of The American Leather Chemists Association 工程技术-材料科学:纺织
CiteScore
1.30
自引率
33.30%
发文量
29
审稿时长
3 months
期刊介绍: The Journal of the American Leather Chemists Association publishes manuscripts on all aspects of leather science, engineering, technology, and economics, and will consider related subjects that address concerns of the industry. Examples: hide/skin quality or utilization, leather production methods/equipment, tanning materials/leather chemicals, new and improved leathers, collagen studies, leather by-products, impacts of changes in leather products industries, process efficiency, sustainability, regulatory, safety, environmental, tannery waste management and industry economics.
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