Resistência da pele de carpa espelho (Cyprinus carpio specularis) curtida pelas técnicas ao cromo e bioleather

Abstract

Resistance of the carp mirror skin (Cyprinus carpio specularis) tanned bychromium and bioleather technique. The objective of the work was to evaluate the tanningtechnique to bioleather and with chromium salts, in carp mirror skins (Cyprinus carpiospecularis). The skins wore removed by means of a machine, identified and congealed. Nextthey were tanned by the two techniques. The test bodies wore removed and taken to thelaboratory climatized around 23ºC and relative humidity of the 50% air, as ABNT- NBR10455 (1988), for 24 hours. For the tests of tensile strenght and to the elongation and thedetermination of the gradual tear force dynamometer, EMIC was used. Samples of the dorsalregion of the skin for analysis of scanning electron microscopy wore removed (MEV). Thesamples wore drought in critical point with metallized CO2 and with íons of gold-palladium.Specimens were then electron-micrographed with JEOL-JSM 5410. One observed theinterlacement and the overlapping of the layers of the collagens staple fibers that providegreater resistance to the leather, and this resistance can be evidenced by the tests. The piecesof leather tanned with the bioleather technique presented higher values in the test of traction(20.45 N/mm2) in comparison to chromium (12.32 N/mm2). There was no difference in theelongation between the treatments (bioleather = 72.52%; chromium = 84.74%). For the test ofgradual tearing, tanning to chromium was superior (26.28 N/mm) compared with bioleather(11.96 N/mm). Even though, the two tanning techniques can be used for skins of this speciesof fish for clothes confection. (10) (PDF) Resistência da pele de carpa espelho ( Cyprinus carpio specularis ) curtida pelas técnicas ao cromo e bioleather - DOI: 10.4025/actascianimsci.v26i4.1711. Available from: https://www.researchgate.net/publication/250313545_Resistencia_da_pele_de_carpa_espelho_Cyprinus_carpio_specularis_curtida_pelas_tecnicas_ao_cromo_e_bioleather_-_DOI_104025actascianimsciv26i41711 [accessed Jun 21 2020].