• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Coloration Technology >A comparative study of ultrasonic degumming of silk sericin using citric acid, sodium carbonate and papain
【24h】

A comparative study of ultrasonic degumming of silk sericin using citric acid, sodium carbonate and papain

机译：柠檬酸，碳酸钠和木瓜蛋白酶对蚕丝胶的超声脱胶比较研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The utilisation of ultrasonics has been shown to enable efficient and environmentally friendly textile wet processing. This study conducted a comparative investigation of silk degumming by using a conventional heating bath and ultrasonic irradiation at a range of ultrasonic frequencies. Citric acid, sodium carbonate and papain were used as degumming agents. Sericin degumming rate, fibre whiteness, fibre surface morphology, fibre structure characteristics and fibre tensile properties were measured and analysed. Results showed that ultrasonics at a lower frequency produced a greater degumming rate than at a higher frequency. Ultrasonics is a more effective way than the conventional heating bath of improving degumming efficiency, especially at a lowered temperature of 60 degrees C. When sodium carbonate was applied at 90 degrees C, a conventional heating bath was found to be more effective than ultrasonics. Papain was found to be more effective in sericin removal than citric acid and sodium carbonate, with a degumming rate of 22% achieved at 60 degrees C under ultrasonic irradiation at 40 kHz. The use of papain can, however, cause a possible overreaction to silk under certain severe conditions, resulting in a loss of fibre whiteness. Negligible changes in fibre structure characteristics were measured by Fourier Transform-infrared spectroscopy and X-ray diffraction after ultrasonic degumming with papain. Slightly reduced fibre strength and increased fibre extensibility were observed in ultrasonically degummed silk samples compared with un-degummed and conventionally degummed silk samples.
机译：超声波的使用已被证明可以实现高效，环保的纺织品湿法加工。这项研究通过使用常规加热浴和在一定范围的超声频率下进行超声辐照进行了丝绸脱胶的比较研究。柠檬酸，碳酸钠和木瓜蛋白酶用作脱胶剂。测定并分析了丝胶蛋白的脱胶率，纤维白度，纤维表面形态，纤维结构特性和纤维拉伸性能。结果表明，与较高频率的超声波相比，较低频率的超声波产生的脱胶率更高。超声是比常规加热浴提高脱胶效率的更有效方法，尤其是在60摄氏度的低温下。当在90摄氏度下应用碳酸钠时，发现常规加热浴比超声更有效。木瓜蛋白酶被发现比柠檬酸和碳酸钠更能有效地去除丝胶蛋白，在40 kHz的超声波辐射下，在60摄氏度下木瓜蛋白酶的脱胶率为22％。但是，木瓜蛋白酶的使用可能在某些恶劣条件下对丝绸造成过度反应，从而导致纤维白度下降。在用木瓜蛋白酶进行超声波脱胶后，通过傅立叶变换红外光谱和X射线衍射测量了纤维结构特征的微不足道的变化。与未脱胶和常规脱胶的丝绸样品相比，超声脱胶的丝绸样品中观察到的纤维强度略有降低，纤维的延伸性增加。

著录项

  • 来源
    《Coloration Technology》 |2019年第3期|195-201|共7页
  • 作者

    Wang Wuchao; Pan Yi; Gong Kang; Zhou Qi; Zhang Tonghua; Li Qing;

  • 作者单位

    Southwest Univ, Coll Text & Garments, Chongqing 400715, Peoples R China|Chongqing Engn Res Ctr Biomat Fibres & Modern Tex, Chongqing 400715, Peoples R China;

    Southwest Univ, Coll Text & Garments, Chongqing 400715, Peoples R China|Chongqing Engn Res Ctr Biomat Fibres & Modern Tex, Chongqing 400715, Peoples R China;

    Southwest Univ, Coll Text & Garments, Chongqing 400715, Peoples R China|Chongqing Engn Res Ctr Biomat Fibres & Modern Tex, Chongqing 400715, Peoples R China;

    Southwest Univ, Coll Text & Garments, Chongqing 400715, Peoples R China|Chongqing Engn Res Ctr Biomat Fibres & Modern Tex, Chongqing 400715, Peoples R China;

    Southwest Univ, Coll Text & Garments, Chongqing 400715, Peoples R China|Chongqing Engn Res Ctr Biomat Fibres & Modern Tex, Chongqing 400715, Peoples R China;

    Southwest Univ, Coll Text & Garments, Chongqing 400715, Peoples R China|Chongqing Engn Res Ctr Biomat Fibres & Modern Tex, Chongqing 400715, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号