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Comparison of Selected Chemical Properties of Fibres from Different Breeds of Dogs and German Blackface Sheep

机译:不同品种的狗和德国黑脸绵羊纤维的选定化学性质比较

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摘要

Combed or picked out dog hair fibre, as one of the protein fibres, could be used in yarn manufacturing. Dog hair fibres have a specific scale structure, shape and distribution on the surface. Results obtained indicated that same dog hair fibre fragmented and interrupted the continuous whole and continuous kemp medulla inside. Thus it is necessary to find differences between sheep wool and dog hair fibres as well as between different dog breeds in other areas. In this research, the crystal and chemical structures, macro-chain confirmation and surface Morphology of sheep wool and dog hair fibres from different breeds were investigated through identifying variations between thus protein fibres. FTIR analysis showed that the absorbing peaks of sheep's wool around 2920 cm(-1) and 2850 cm(-1) are more intense and sharper than those in the IR spectrum of dog hair fibre. Other peaks of the dog hair spectra are more intensive and have a bigger areal. Values of the crystallinity degree and indexes are different not only between sheep wool and dog hair fibres, but also among hairs of the different dog breeds too. The percentage amounts of carbon, hydrogen and nitrogen in sheep wool and dog hair fibres are of the same order of magnitude. However; the content of elements in the cortex of sheep wool and dog hair fibres varies, especially that of sulphur and oxygen, which varies by about two times among the different protein fibres.
机译:精梳或挑选出来的狗毛纤维,作为蛋白质纤维之一,可用于纱线制造。狗毛纤维在表面上具有特定的鳞片结构,形状和分布。获得的结果表明,同一条狗毛纤维断裂并中断了内部连续的整个和连续的肯普延髓。因此,有必要找出绵羊毛和狗毛纤维之间的差异,以及其他地区不同犬种之间的差异。在这项研究中,通过鉴定蛋白质纤维之间的变异,研究了不同品种的绵羊毛和狗毛纤维的晶体和化学结构,大链确证和表面形态。 FTIR分析表明,在2920 cm(-1)和2850 cm(-1)附近,绵羊毛的吸收峰比狗毛纤维的IR光谱中的吸收峰更强烈和更锐利。狗毛光谱的其他峰更密集并且具有更大的面积。结晶度和指数的值不仅在绵羊毛和狗毛纤维之间不同,而且在不同犬种的毛发之间也不同。绵羊毛和狗毛纤维中碳,氢和氮的百分比数量级相同。然而;绵羊羊毛和狗毛纤维的皮质中元素的含量变化,尤其是硫和氧的含量变化,在不同的蛋白质纤维中变化约两倍。

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