鹅、鸭绒纤维形态结构差异及对保暖性能的影响

利用电子和光学显微镜对鹅、鸭绒纤维形态结构进行观察,定量阐述了鹅、鸭绒纤维绒核结构、绒枝结构、绒小枝及节点结构的差异,在此基础上对鹅、鸭绒纤维保暖性进行测试,分析了结构差异对纤维保暖性的影响.与鸭绒纤维相比,鹅绒纤维绒朵较大,绒核较小,绒枝长而粗,绒小枝长而细且分布较密,绒小枝上节点小而多且分布均匀,这使得鹅绒纤维具有...

Difference of morphological structures between goose down fiber and duck down fiber and their effect on thermal retaining property

The morphological structure of duck down and goose down was observed using optical microscope and scanning electron microscope. Explained quantificationally every parts size of down stone, down branch, down fibril and the node structure. Besides, studied the thermal properties of different down fiber and discussed the effects of the structure differences on fibers thermal property. Compared with the duck down, goose down possesses bigger down cluster, less down stone, longer down branch and finer down fibrils. The down fibrils distribute denser and the nodes arrange evener than duck down. The morphological structure gives the goose down better bulkiness and better thermal properties. The thermal property nonlinearly depended on the fiber volume fractions. With the increasing of the volume fraction, the thermal property of the fiber decreases firstly, and them improves. By the test verified, when the volume fractions are between 0.002-0.005, the fiber possesses the best heat retention.