NDLI: Improving the reactivity of kraft-based dissolving pulp for viscose rayon production by mechanical treatments

Content Provider	Springer Nature Link
Author	Tian, Chao Zheng, Linqiang Miao, Qingxian Cao, Chunyu Ni, Yonghao
Copyright Year	2014
Abstract	The capacity of dissolving pulp to react with carbon disulfide under the defined conditions, known as the “Fock reactivity,” is an important parameter in determining the processability, end-product quality, and environmental impact in downstream rayon production. This study was aimed at improving the reactivity of kraft-based dissolving pulp by mechanical treatments, such as grinding and PFI refining, which can induce additional accessible surfaces in the compact cellulose structure via fiber cutting and fibrillation, respectively. Results showed that the Fock reactivity of a kraft-based dissolving pulp was increased from 49.3 to 71.8 % by 6-min grinding treatment under the conditions studied. Such a treatment led to increases in the fines content and specific surface area while decreasing the fiber length, intrinsic viscosity, and the crystalline ratio of cellulose. PFI refining can also result in changes in the fiber morphology and cellulose structure; a 25,000 PFI revolution treatment led to an increase in the Fock reactivity from 49.3 to 58.3 % for the same dissolving pulp.
Starting Page	3647
Ending Page	3654
Page Count	8
File Format	PDF
ISSN	09690239
Journal	Cellulose
Volume Number	21
Issue Number	5
e-ISSN	1572882X
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-07-04
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fock reactivity Dissolving pulp Grinding Refining Cellulose Specific surface area Bioorganic Chemistry Physical Chemistry Organic Chemistry Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Polymers and Plastics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Combined mechanical and enzymatic treatments for improving the Fock reactivity of hardwood kraft-based dissolving pulp

Comparison of acid sulfite (AS)- and prehydrolysis kraft (PHK)-based dissolving pulps

SO2–ethanol–water (SEW) fractionation process: production of dissolving pulp from spruce

A precise study on the feasibility of enzyme treatments of a kraft pulp for viscose application

Novel concepts of dissolving pulp production

All-cellulose composites from unbleached hardwood kraft pulp reinforced with nanofibrillated cellulose

Evaluation of Grevillea robusta as a raw material for the production of dissolving pulp and viscose rayon

Purification of cellulosic pulp by hot water extraction

Dissolving-grade birch pulps produced under various prehydrolysis intensities: quality, structure and applications

Improving the reactivity of kraft-based dissolving pulp for viscose rayon production by mechanical treatments

Similar Documents

Combined mechanical and enzymatic treatments for improving the Fock reactivity of hardwood kraft-based dissolving pulp

Comparison of acid sulfite (AS)- and prehydrolysis kraft (PHK)-based dissolving pulps

SO2–ethanol–water (SEW) fractionation process: production of dissolving pulp from spruce

A precise study on the feasibility of enzyme treatments of a kraft pulp for viscose application

Novel concepts of dissolving pulp production

All-cellulose composites from unbleached hardwood kraft pulp reinforced with nanofibrillated cellulose

Evaluation of Grevillea robusta as a raw material for the production of dissolving pulp and viscose rayon

Purification of cellulosic pulp by hot water extraction

Dissolving-grade birch pulps produced under various prehydrolysis intensities: quality, structure and applications

Improving the reactivity of kraft-based dissolving pulp for viscose rayon production by mechanical treatments