4种家蚕茧壳的结构与性能

为开发设计新型功能纺织品,借助扫描电子显微镜、傅里叶红外光谱仪、X射线衍射仪、万能材料试验机和温湿度试验仪等研究了4种不同的家蚕茧壳的多层形貌、化学结构、结晶结构、力学性能和热传导性能,并对蚕茧壳的多层结构进行理论分析。结果表明:4种家蚕茧壳都具有独一无二的多层多孔结构,从外层到内层,纤维的直径先增大后减小;蚕茧壳厚度和尺寸不同,但都具有良好的热缓冲能力,相对而言,虎头蚕茧壳的耐热性最好,而斑马蚕茧壳(绿色)的热传导性最好。

Structure and properties of four different kinds of domestic cocoon varieties

In order to develop and design new functional textiles, multilayer morphology, chemical structure, crystalline structure, mechanical properties and thermal conductivity of four varieties of different silkworm cocoons walls were characterized by scanning electron microscope, Fourier transform infrared spectroscopy, X-ray diffractometer, universal material testing machine and temperature and humidity tester, respectively. Theoretical analysis on the multilayer structure was conducted and the design principle of thermal protection products was studied and established. Research results show that all the four varieties of cocoon walls have unique multilayer porous structure, and the diameter of the fibers first increase and then decrease from the outer layer to the inner layer. Although the thickness and size are different, the four varieties of silkworm cocoon walls have good thermal buffering properties. In general, the tiger head cocoon wall has the best heat resistance, and the zebra cocoon wall (green) has the best thermal conductivity. When designing the multilayer structure of thermal protection products, the thermal insulation effect will be greatly improved by appropriately increasing the number of layers of thermal protection products under cost permission.