Nkwor Adachukwu N, Ukoha Pius O
Department of Chemistry/Biochemistry/Molecular Biology, Alex Ekwueme Federal University Ndufu-Alike Ikwo, P.M.B, 1010, Abakaliki, Ebonyi State, Nigeria.
Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria.
Heliyon. 2019 Dec 27;6(1):e03009. doi: 10.1016/j.heliyon.2019.e03009. eCollection 2020 Jan.
The synthesis, properties, characterization and sulphonation of aril cap oil were examined to establish its leather fatliquoring potential. The analysis of the aril cap oil before and after the completion of sulphonation process was carried out in order to confirm the modification of the oil. The physicochemical properties showed a marked difference between both analyzed oils as the melting point, acid value, free fatty acid, iodine value, saponification value and % SO of the unsulphonated/sulphonated oil were observed to be 6.39 °C; 19.90 °C, 12.99 mg KOH/g; 0.50 mg KOH/g, 6.50; 5.25, 77 g iodine/100g; 21 g iodine/100g, 185 mg KOH; 176 mg KOH and nil; 3.92 % respectively. The fatliquoring potential was examined and compared with commercial fatliquor using standard methods. A significant improvement in the lubrication and mechanical properties of the leather treated with the sulphonated aril cap oil was revealed by Sudan stain and Tensile strength; Double edge Tear; Elongation at break test results respectively. The improved lubrication and mechanical properties of the treated leather compared favourably with commercial fatliquor. This study shows that aril caps of of no commercial value can be a source of fatliquor for the leather industry.
对芳基籽油的合成、性质、表征及磺化进行了研究，以确定其皮革加脂潜力。为确认油的改性，对磺化过程完成前后的芳基籽油进行了分析。物理化学性质表明，两种分析油之间存在显著差异，未磺化/磺化油的熔点、酸值、游离脂肪酸、碘值、皂化值和%SO分别为6.39℃；19.90℃、12.99mg KOH/g；0.50mg KOH/g、6.50；5.25、77g碘/100g；21g碘/100g、185mg KOH；176mg KOH和无；3.92%。采用标准方法对加脂潜力进行了检测，并与商业加脂剂进行了比较。苏丹染色和拉伸强度、双边缘撕裂、断裂伸长率测试结果分别表明，用磺化芳基籽油处理的皮革的润滑和机械性能有显著改善。处理后皮革改善的润滑和机械性能与商业加脂剂相比具有优势。这项研究表明，无商业价值的芳基果壳可以成为皮革工业加脂剂的一个来源。
