Standardization of a Chemical Modification Protocol for Jute Fabric Reinforcement

ABSTRACT

Surface modification of a jute fibrous reinforcement is preferred to improve its compatibility with thermosetting resin for the development of biocomposite. A plain weave jute fabric was chemically modified with different concentrations of sodium hydroxide (NaOH) i.e. 1 to 6% (weight/volume). The chemically modified jute fabrics were assessed for their physical, mechanical, and morphological properties. The modified jute reinforcements were used for the preparation of biocomposite by hand laying method cum compression molding method, and the respective biocomposites were evaluated for their physical and mechanical properties. Results inferred that NaOH modified the fine structure and morphological properties of treatment on jute reinforcement and the reinforcing ability of the modified jute fabric is increased with increasing in the concentration of NaOH up to 5% (w/v) and then stabilized. It is concluded that the suitable concentration for improved reinforcement is found at 5% (w/v) at 30°C for 60 min in 1:15 material-to-liquor ratio.

摘要

黄麻纤维增强材料的表面改性有利于提高其与热固性树脂的相容性，是开发生物复合材料的首选方法. 用不同浓度的氢氧化钠，即1 ~ 6%(重量/体积)对平纹黄麻织物进行化学改性. 对经化学改性的黄麻织物进行了物理、力学和形态性能测试. 摘要以黄麻为增强材料，采用手工铺层法和模压法制备生物复合材料，并对其物理力学性能进行了评价. 结果表明，氢氧化钠对黄麻增强物的微观结构和形态特征进行了改性，随着氢氧化钠浓度达到5% (w/v)，改性后黄麻织物的增强能力增强后趋于稳定. 结果表明，在30℃、60分钟、5% (w/v)、料液比为1:15的条件下，可以得到较好的加固效果.

KEYWORDS:

• Jute
• alkali treatment
• modification
• reinforcement
• biocomposite

关键词:

• 黄麻
• 碱处理
• 修改
• 强化
• 生物复合材料

Acknowledgments

Authors are more thankful to National Fund for Basic, Strategic and Frontier Application Research in Agriculture (NFBSFARA), Indian Council of Agricultural Research, New Delhi for funding of the project “FQ3029” and The Director, ICAR- National Institute of Natural Fiber Engineering and Technology, Kolkata for giving permission to present the paper.

Additional information

Funding

This work was supported by the National Fund for Basic, Strategic and Frontier Application Research in Agriculture (NFBSFARA), ICAR, New Delhi, India [FQ-3029].