Natural and Artificial Weathering of B.mori Silk Fabric

Abstract

Abstract. Ultraviolet aging of B.mori silk fabric was studied under natural and artificial weathering conditions. Exposed samples were removed periodically and characterized by several analytical techniques. During both types of weathering, the results showed that yellowness index presented a rising trend with the extension of aging time; breaking strength of B.mori silk fabric decreased approximately 93.62%, 43.30% under natural aging 150 days and artificial accelerated aging 80 h, respectively; the peak intensity of amide I, and amide II, etc. significantly declined, even disappeared. At the same time, the conformation transition of B.mori silk was from random coil to β-pleated sheet following the prolonging of ultraviolet aging time. What's more, the content of amino acid obviously declined especially histidine, tyrosine, and lysine etc. In addition, the results evidenced that during natural and artificial weathering, various performances of B.mori silk fabric changed similarly. So artificial weathering can be used to substitute for natural weathering for its weathering evaluation, which is helpful to understand the aging behavior and take measures to avoid aging and elongate its service life.

Different Natural Season Weathering of B.mori Silk Fabric

“…Total exposure period was six months starting from March 2010. The average outdoor weathering conditions were listed in Table 1 [3]. Yellowness Index.…”

“…Therefore, B.mori silk fabric becomes one of the most important summer costume fabrics. Ultraviolet (UV) radiation is one of the major causes of natural weathering of textile materials [3]. Thus, the good resistance to UV radiation is required for the B.mori silk fabric.…”

“…Up to now, many researches on the aging mechanism of B.mori silk had been performed under natural and artificial weathering conditions [3][4][5]. These researches primary analyzed particular factors influencing the B.mori silk aging performance such as oxygen, ozone, humidity, temperature etc.…”

Development of an enzyme‐linked immunosorbent assay based on the monoclonal antibody of Bombyx mori to detect ancient silk

“…Silk is composed mainly of fibroin and is easily deteriorated by environmental factors such as light, heat, humidity and microorganisms (Ming et al . ; Zhang et al . ; Li et al .…”

Development of a gold-based immunochromatographic strip assay for the detection of ancient silk

“…1 However, its protein composition makes silk easily deteriorated by light, humidity, heat and microorganisms. [2][3][4] The identication of ancient silks becomes particularly difficult when they have suffered thousands of years of erosion.…”