Preparation of 3-D porous fibroin scaffolds by freeze drying with treatment of methanol solutions

In this study, silk scaffolds with appropriate porous structures were prepared by adjusting solution concentrations and providing treatment with methanol solutions in the way of freeze drying. The effects of the preparation conditions on the microstructures and properties of the scaffolds were discussed. Fibroin solutions with different concentrations of 4, 6, 8, 10 wt% were used respectively to prepare the scaffolds. The effects of the addition of 20 vol% methanol before or after freeze drying to the 4 wt% fibroin solution were investigated. As demonstrated by Scanning Electron Microscope (SEM), the fib-roin scaffolds prepared without methanol had porous microstructures composed of thin sheets, and the sizes of the pores decreased with the increase of the fibroin solution concentrations, while the scaffolds prepared in the presence of methanol showed porous microstructures formed by fine-particle aggregates. The porosities and mechanical properties of the prepared fibroin scaffolds under different conditions were tested. The crystalline structures and conformations of the fibroin scaffolds were detected by Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD).     

蚕丝纤维织物是汽车、飞机的良好的内装饰材料

本文主要是根据蚕丝纤维的特有性能，论述了在汽车、飞机上应用蚕丝织物作内装饰材料的好处。     

蜘蛛丝拉伸变形行为的力学模型

根据大腹园蛛牵引丝力学性能的结构机理及其聚集态结构和形态结构特征，初步建立了以皮芯层结构为基础的蜘蛛丝拉伸力学模型，分析了皮芯层比例及结构对蜘蛛丝纤维力学性能的影响。以层状复合材料的拉伸变形为依据，分析了蜘蛛丝纤维的拉伸断裂过程与皮芯层性能间的关系。     

出土简帛与孟子研究新进展

孟子是儒学重镇,其思想涉及多个方面,在长期不同角度的研读中既有一致又有争议。最近出土的简帛对孟子思想的研读有重要推进,它既使部分共识得以深化、又使部分争议得以澄清,了解出土简帛对于全面而深刻把握孟子思想是十分必要的。     

中国近代丝织物的产生和发展

中国近代丝织物既继承了古代的优秀传统,又具有反映时代变化的新特征。而一般的外来影响,特别是西方的冲击,主要促进了中国近代纺织业的变化。这些新特征的形成,有着科技和服饰文化两方面的背景。中国古代(起源于唐朝,即公元618—907年)一向有由官方将丝织物进行大类划分的传统。近、现代的新、老14大类分类标准(老标准用于60至70年代,新标准至今有效),正是在此基础上结合当时实际情况而形成的。文中对大类的类名也进行了讨论。     

G-G PATTERNING METHOD OF SILK WEAVING IN EARLIER CHINA

There are some unique techniques in the Chinese traditional silk production. 2-2 patterning method is such one suggested by foreign scholars. But this paper gives a more extensive concept, G-G method, which includes the 2-2 method after studying more fabrics from the Shang. to the Five Dynasties. Finally, the paper discusses the truth of G-G method the (?) applied in, and some characteristics of G-G method.     

丝绒织物传热性能的正反向差异

研究正反面结构有显著差异的丝绒织物在传热性能上的方向性.在平板型保暖仪上通过试样的不同搭配方式测试求得了丝绒织物光面和绒面接触热阻的差异.     

The Relationship between the Mechanical Properties of Pure Silk Fabrics and Dress Performance

In this paper, the relationship between mechanical properties of 30 pieces of pure silk fabrics and the dress performance has been analyzed. With the methods of multifactor linear step regression and discrimination analysis, the judgment and prediction model of the performance have been established.     

元代丝绸纹样的艺术特色及尚金习俗

元代是中国历史上第一个由少数民族贵族统治的封建王朝,统治者一方面弘扬民族文化,另一方面大力推崇西亚艺术,加上中国根深蒂固的传统文化的影响,形成了三种文化并存,相互借鉴的新的风尚。丝绸纹样的艺术正是在这种情形下发展兴盛、出现了中西合璧的新趋势。元代丝绸纹样中的尚。习俗也是在这个特定的背景中广泛流传并完善起来的。