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Preparation of strong viscose fibre by using cellulose nanocrystals as coating material

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Abstract

Nanocellulose based materials recently grabbed attention of many researchers due to its versatile properties such as high surface area, high mechanical strength, nano dimension, and its compatibility with different polymers. The present work demonstrates, the study on coating of Viscose fibre by Cellulose nanocrystals (CNCs) and their effect on surface, tensile strength, dye-ability and frictional properties of fibres. It is observed that coating of viscose fibre by CNCs, led to increase in tensile strength without affecting frictional attribute and dye-ability. The conditioned and wet tenacity of fibre increased by 16 and 13% respectively, for 2% CNC coated viscose fibre compare to reference viscose fibre. While maintain the elongation. The coating of viscose fibre by CNCs presumably helps to cover micro-gaps on fibre surface and thus reducing crack propagation. This hypothesis is supported by microscopic observation of coated and un-coated viscose fibre surface, which showed rough surface for CNC coated fibre. Additionally, it was observed that strong adhesion of CNCs with viscose fibre results in a durable coating due to hydrogen bonding. The skin core analysis of coated and uncoated fibre indicated difference in dyeing of highly crystalline (skin) and less crystalline (core) structure of fibre. The thickness of skin increased with increasing the CNC coating of viscose fibre. Overall, the CNC coated viscose fibre showed improved properties as compared to reference viscose fibre.

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Acknowledgments

The authors duly acknowledge support of Pulp & Fibre Innovation Centre (Grasim industries) for providing required resources and Aditya Birla Science and Technology company Pvt. Ltd for supporting in analytical facilities.

Funding

The authors received financial support from Pulp & Fibre Innovation Centre (PFIC)—A unit of Grasim Industries Ltd. Aditya Birla Group Company.

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All the author contributed to concept and experimental design. VG performed an experiments and data interpretation. VG prepared first draft of manuscript. RK and STM reviewed the manuscript and finalized the draft.

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Correspondence to S. T. Mhaske.

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The authors declare no competing interests.

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We have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this article.

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Title of the manuscript: an evaluation of celluose nanocrystals as coating material on viscose fibre and its characterizations using different techniques. Journal: Cellulose. I, the undersigned, give my consent for the publication of identification details, which can include photographs and/or details within the text (Material) to be published in the above Journal and article. I conform that I have seen and been given the opportunity to read to both the material and article to be published by cellulose. I have discussed this consent form with Prof. S. T. Mhaske, who is the Correspondent author of this paper. I understand that all the Cellulose journals may be available in both prints and on the internet, and will be available to a broader audience through marketing channels and other third parties. Therefore, anyone can read material published in the Journal.

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Ghodake, V.B., Khare, R.A. & Mhaske, S.T. Preparation of strong viscose fibre by using cellulose nanocrystals as coating material. Cellulose 30, 11493–11506 (2023). https://doi.org/10.1007/s10570-023-05593-y

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  • DOI: https://doi.org/10.1007/s10570-023-05593-y

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