| Autor: |
WANG Luzhen, ZHONG Li, YOU Muqiu, XU Zhaoyang, JIN Yongcan, LI Dagang, CHEN Chuchu |
| Jazyk: |
čínština |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Cailiao gongcheng, Vol 52, Iss 4, Pp 209-217 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1001-4381 |
| DOI: |
10.11868/j.issn.1001-4381.2022.000986 |
| Popis: |
The wood was used as raw material to obtain the wood skeleton by matrix-removal. And the high-strength wood-based composite hydrogels with PVA/PAM double network structure were constructed by in-situ polymerization. The change rules of macro/micro functional morphological characteristics, mechanical properties, optical properties and chemical composition of the wood-based composite hydrogels were systematically investigated by adjusting the mass ratio of PVA and PAM in the hydrogel system. The results show that introducing a small amount of PVA into the PAM/wood skeleton composite hydrogels and constructing a double network structure can effectively enhanced the mechanical properties of the wood-based composite hydrogels. As a result, the wood-based composite hydrogels show tensile properties with a maximum tensile strength and fracture elongation of 16.47 MPa and 11.61%. Furthermore, the wood-based composite hydrogel is used as a flexible substrate with a conductivity of 1.8 S/m to assemble and build sensor components. The results indicate that the flexible sensor exhibits stable and repeatable relative current signal changes under a variety of deformations. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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