摘要
本文用于热处理炼白真丝织物,试验结果表明:在175℃以上。织物的热泛黄与热脆化均随时间增长发生明显变化。通过氨基酸分析、X射线衍射、红外吸收光谱分析及电镜观察摄影,探讨了热泛黄脆化机理,结果表明:羟基氨基酸的热分解是热泛黄的主要原因,而丝素分子链的断裂及分子间氢键的破坏是热脆化的基本原因。
In this paper, the samples of silk fabric were heated in the air in unloaded state. Theresults of the test have shown that when the temperature is over 175℃ heat-yellowing andbrittleness of real silk fabric will change obviously with the increase of time. The mechanismof the change were investigated through using experiments method of amino acid compositionanalysis, X-ray diffraction analysis, infrared absorption spectrum analysis and electron mic-roscope diagram. The obtained data have shown that the heat decomposition of hydroxy aminoacids are main reason for the heat-yellowing and the degradation of molecular chains of silkfibroin and the damage of hydrogen bonding between moleculars are primary reason for theheat brittleness of the samples.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
1990年第4期4-7,13,共5页
Journal of Textile Research
