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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ma, Xuebin Xu, Tingting Chen, Wei Wang, Rui Xu, Zheng Ye, Zhiwen Chi, Bo |
| Copyright Year | 2017 |
| Abstract | New applications call for many new requirements. In order to improve the toughness of aldehyde hyaluronic acid (A-HA) and adipic acid dihydrazide (ADH) hydrogel, the poly(ethylene glycol) (PEG) was added. PEG content and molecular weight have little effect on the gelation time, and the composite hydrogels can form in situ within 20 seconds at room temperature. The press test showed that the hydrogels containing PEG possessed a better compression resistance, after pressed more than five times, the composite hydrogels could restore. Rheological properties were measured to evaluate the working ability and the effect of PEG on hydrogels. By analyzing the shear viscosity (η $_{γ=0.01}$), yield stress (σ $_{0}$) and threshold shear stress (σ $_{ c }$), the addition of PEG can make the structure of composite hydrogels get loose and improve the shear resistance. Especially, PEG800 can enhance the antishear ability obviously. The amplitude sweep tests showed a broad linear viscoelastic region, indicating a wide processing range. In the meanwhile, we also found that PEG can improve the optical transmittance of xerogel evidently. |
| Starting Page | 817 |
| Ending Page | 824 |
| Page Count | 8 |
| File Format | |
| ISSN | 12299197 |
| Journal | Fibers and Polymers |
| Volume Number | 18 |
| Issue Number | 5 |
| e-ISSN | 18750052 |
| Language | English |
| Publisher | The Korean Fiber Society |
| Publisher Date | 2017-05-28 |
| Publisher Place | Seoul |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Hydrogel Rheology Antishear Hyaluronic acid Poly(ethylene glycol) Polymer Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Chemical Engineering Polymers and Plastics |
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