skip to main content
Ngôn ngữ:
Giới hạn tìm kiếm: Giới hạn tìm kiếm: Dạng tài nguyên Hiển thị kết quả với: Hiển thị kết quả với: Dạng tìm kiếm Chỉ mục

Cationic Starches of High Degree of Functionalization:  12. Modification of Cellulose Fibers toward High Filler Technology in Papermaking

Industrial & engineering chemistry research, 2006-10, Vol.45 (22), p.7374-7379 [Tạp chí có phản biện]

Copyright © 2006 American Chemical Society ;2006 INIST-CNRS ;ISSN: 0888-5885 ;EISSN: 1520-5045 ;DOI: 10.1021/ie060135z ;CODEN: IECRED

Tài liệu số/Tài liệu điện tử

Trích dẫn Trích dẫn bởi
  • Nhan đề:
    Cationic Starches of High Degree of Functionalization:  12. Modification of Cellulose Fibers toward High Filler Technology in Papermaking
  • Tác giả: Bratskaya, Svetlana ; Schwarz, Simona ; Petzold, Gudrun ; Liebert, Tim ; Heinze, Thomas
  • Là 1 phần của: Industrial & engineering chemistry research, 2006-10, Vol.45 (22), p.7374-7379
  • Mô tả: Modification of cellulose fibers via adsorption of highly functionalized 2-hydroxy-3-trimethylammonium propyl chloride starch (HPMA starch) with a degree of substitution (DS) in the range from 0.25 to 1.54 was investigated by electrokinetic measurements and filler retention tests. It was found that the amount of cationic HPMA starch adsorbed at the isotherm plateaus depends on two parameters:  the DS of the starch derivative and, more remarkably, the amylose/amylopectin ratio. All studied HPMA starches allow significant improvement of kaolin particle retention in comparison to untreated fibers and fibers modified with low-substituted commercial starch. We suggest that, because of the local overcharging of the cellulose surface through the adsorption of starch macromolecules, the filler retention capacity is enhanced even at low and moderate degrees of coverage when the surface has a net-negative charge. Taking into account the efficiency and cost of starch cationization, the optimum DS of the HPMA starch for cellulose modification in papermaking was found to be in the range 0.6−0.7, where a degree of filler loading of 500 mg/g can be reached at a level of HPMA starch addition of 0.5−0.6%.
  • Nơi xuất bản: Washington, DC: American Chemical Society
  • Ngôn ngữ: English;Russian
  • Số nhận dạng: ISSN: 0888-5885
    EISSN: 1520-5045
    DOI: 10.1021/ie060135z
    CODEN: IECRED
  • Nguồn: Alma/SFX Local Collection
Trở lại danh sách kết quả
Về trang trướcTrước Kết quả  2 Tiếp theoTới trang tiếp theo
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Đang tìm Cơ sở dữ liệu bên ngoài...