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Water retention and physical properties of recycled fibers treated with NaOH/urea aqueous solution
| Content Provider | Scilit |
|---|---|
| Author | Miao, Yingju Chen, Ying Jia, Qingming Bai, Zhiling Shi, Kaiyi |
| Copyright Year | 2018 |
| Description | Journal: Iop Conference Series: Materials Science and Engineering Irreversible hydrogen bonding is the most widely recognized mechanism of fiber hornification, and NaOH/urea aqueous solution can break the inter- and intramolecular hydrogen bonds of cellulose. In order to investigate whether or not this solution system reverses the hornification of fibers that repeatedly underwent wetting and drying, we studied the degree of hornification of repaired fibers, which have been treated with NaOH/urea aqueous solution and regenerated in $H_{2}SO_{4}/Na_{2}SO_{4}$ aqueous solution, and we analyzed the physical properties of the resulting paper sheets. The water retention value (WRV) of the repaired fibers was equivalent to that of virgin pulp, and the hornification has been thoroughly reversed. The physical properties of the resulting paper sheets have improved, especially the tear and burst indexes, which have approximately doubled. Moreover, the dissolution/regeneration process slightly inhibited the degree of fiber hornification and increased the cycle number of the recycled fibers. |
| Related Links | http://iopscience.iop.org/article/10.1088/1757-899X/392/3/032012/pdf |
| ISSN | 17578981 |
| e-ISSN | 1757899X |
| DOI | 10.1088/1757-899x/392/3/032012 |
| Journal | Iop Conference Series: Materials Science and Engineering |
| Issue Number | 3 |
| Volume Number | 392 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2018-08-02 |
| Access Restriction | Open |
| Subject Keyword | Journal: Iop Conference Series: Materials Science and Engineering Paper and Wood Physical Properties Aqueous Solution Water Retention Naoh/urea Aqueous |
| Content Type | Text |
| Resource Type | Article |
