Thermal Insulation Behavior of Chemically Treated Jute Fiber Quilt

ABSTRACT

Jute fibers are explored here as a raw material of quilt for thermal insulation. Alkali treatment of the jute fibers has been conducted to make the fibers soft, bulky, porous, and crimpy. Process of alkali treatment has been optimized by Box–Behnken response surface design to develop maximum crimp in the fiber structure. A good negative correlation (−0.91) has been observed between fiber crimp and thermal conductivity of quilts prepared thereof. Highest crimp (28.88%) and lowest thermal conductivity (0.378 W/mK) of the jute quilt has been observed when jute fibers are woollenized at low level of reaction temperature, medium level of time and at high level of alkali concentration. Even, thermal conductivity of the woollenized jute quilt is found lower than domestic cotton and commercial polyester fiber quilts. Scanning electron microscope images of woollenized jute fiber reveal that after alkali treatment bundled jute fiber strands are individualized due to removal of surface binder lignin creating bulky and porous morphology.

摘要

以黄麻纤维为主要原料，对其进行了保温研究.对黄麻纤维进行碱处理，使其柔软、蓬松、多孔、卷曲.采用盒子-贝肯设计响应面设计对碱处理工艺进行了优化，使纤维结构具有最大的卷曲度.纤维卷曲与制备的被子热导率呈良好的负相关（-0.91）.当黄麻纤维在低反应温度、中反应时间和高碱浓度下羊毛化时，黄麻被的卷曲度最高（28.88%），导热系数最低（0.378 w/mk）.即使如此，毛黄麻被的导热系数也低于国产棉和商用聚酯纤维被.毛料黄麻纤维的扫描电镜图像显示，经过碱处理后，由于去除了表面结合剂木质素，形成了粗大多孔的形态，黄麻纤维束被单独化.

KEYWORDS:

• Woollenization of jute
• quilt
• thermal conductivity
• web formation
• alkali treatment
• Box-Behnken design

关键词:

• 黄麻毛化
• 被子
• 热导率
• 网络形成
• 碱处理
• 盒子-贝肯设计

Additional information

Notes on contributors

Subrata Ghosh

Dr. Subrata Ghosh is presently working as Professor in the Department of Textile Technology, Dr. B. R. Ambedkar National Institute of Technology Jalandhar. He has more than 25 years of teaching experience in the field of Textiles. His expertise areas are fabric formation, Properties of Fibres, Unit operation, Theory of Textile Structure etc. His present research interests are fluid flow through textile materials, Heat flow through textile materials, Mathematical modelling of weaving, knitting and stitching process, modelling of bandaging materials etc. He has supervised 6 PhD and many M. Tech. students. He has published more than 50 research articles in various refereed journals and taken many expert lectutes in various university and Institutes in India.

Shraddha Singh

Shraddha Singh pursued M. Tech. in Textile Technology and Management from the Department of Textile Technology, Dr. B. R. Ambedkar National Institute of Technology Jalandhar. and B.Tech. in Carpet Technology from Indian Institute of Carpet Technology, Bhadohi, India.

Subhankar Maity

Dr. Subhankar Maity is presently working as Assistant Professor in the Department of Textile Technology, Uttar Pradesh Textile Technology Institute, Kanpur, India. He pursued PhD in Textile Technology from Dr. B R Ambedkar National Institute of Technology, Jalandhar, India and M. Tech. in Textile Engineering from IIT Delhi, India. He has total 6 years of teaching and industrial work experience. His main research focuses are conductive polymer based electro-conductive textiles, graphene coated textiles, heat transfer behavior of fibrous/polymeric materials and related functional textiles. He has over 40 publications in leading refereed journals of materials, textiles and polymer fields.