In this study, a clean and efficient down processing technology improved the bulkiness of the down fibers by two physical methods. On the one hand, amino polysiloxane compound SI-G was used to modify down fibers physically. On the other hand, the structure of down fibers keratin was changed and the elasticity of down was increased by adjusting the temperature, so the bulkiness of down fibers was improved. The results showed that the most suitable condition for down fibers in the air-blast dusting machine was a temperature of 60 ± 2°C when the SI-G dosage was 2% of the weight of down, the performance of down fibers was the best. The bulkiness increased by 49%, the cleanliness increased by 92%, and the residual fat rate did not change significantly. Evidence was provided by scanning electron microscope and energy dispersive spectrometer (SEM-EDS), nuclear magnetic resonance spectrometer (13C-NMR), X-ray Diffractometer (XRD) and Raman spectroscopy analysis. The results showed that, on the one hand, amino polysiloxane SI-G adsorbed on the down surface, making the fiber smooth, soft, and elastic. On the other hand, the conformation of down fibers keratin changed, the conformation of keratin macromolecule α-helix increased relatively, and the random crimp conformation decreased relatively, which makes the protein structure more regular and elastic, so the bulkiness of the down fibers improved.

中文翻译：

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基于两种物理方法的清洁高效羽绒加工技术

在这项研究中，清洁高效的羽绒加工技术通过两种物理方法改善了羽绒纤维的蓬松度。一方面，氨基聚硅氧烷化合物SI-G用于物理改性羽绒纤维。另一方面，通过调节温度，改变了羽绒纤维角蛋白的结构，增加了羽绒的弹性，从而改善了羽绒纤维的蓬松度。结果表明，当SI-G用量为羽绒重量的2%时，气流喷粉机对羽绒纤维最适宜的条件是温度60±2℃，羽绒性能最好. 蓬松度提升49%，洁净度提升92%，残脂率无明显变化。证据由扫描电子显微镜和能谱仪 (SEM-EDS) 提供，核磁共振光谱仪（13C-NMR）、X射线衍射仪（XRD）和拉曼光谱分析。结果表明，一方面，氨基聚硅氧烷SI-G吸附在羽绒表面，使纤维光滑、柔软、富有弹性。另一方面，羽绒纤维角蛋白的构象发生了变化，角蛋白大分子α-螺旋的构象相对增加，随机卷曲构象相对减少，使蛋白质结构更加规则和有弹性，从而提高了羽绒纤维的膨松度。 .