Construction of 3D aerogels consisting of cellulose and BNNSs bridged by AgNPs for enhancing thermal and tribological properties of polyurethane composites
Waterborne polyurethane (WPU) is attracting widespread attention in the friction field, but pure WPU cannot meet the wear resistance requirements due to poor thermal and self-lubricating properties. Herein, a novel cellulose/BNNSs-AgNPs aerogel (CBAg) composed of zero-dimensional silver nanoparticle...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2024-12-01
|
| Series: | Nano Materials Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589965124000151 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841560462522580992 |
|---|---|
| author | Yu He Yuanya Zhang Yongjun Zhou Junya Yuan Xuehu Men |
| author_facet | Yu He Yuanya Zhang Yongjun Zhou Junya Yuan Xuehu Men |
| author_sort | Yu He |
| collection | DOAJ |
| description | Waterborne polyurethane (WPU) is attracting widespread attention in the friction field, but pure WPU cannot meet the wear resistance requirements due to poor thermal and self-lubricating properties. Herein, a novel cellulose/BNNSs-AgNPs aerogel (CBAg) composed of zero-dimensional silver nanoparticles (AgNPs), one-dimensional cellulose and two-dimensional boron nitride nanosheets (BNNSs) was successfully fabricated. Specifically, AgNPs were loaded onto the surface of BNNSs, which could serve as bridges to connect adjacent BNNSs. Cellulose was used to construct a 3D skeleton structure for stabilizing better dispersion of inorganic fillers. Finally, the thermal and tribological properties of CBAg-WPU were improved compared to pure WPU, with a 69% increase in thermal conductivity and an 89% reduction in wear rate. This was attributed to the load-bearing capacity of cellulose and outstanding thermal and lubricant capability of BNNSs-AgNPs. In addition, BNNSs and AgNPs inside the aerogel were transferred to the sliding interface and participated in the formation of high-quality friction transfer film, further endowing CBAg-WPU composites prominent tribological performance. Therefore, the novel design of 3D hybrid aerogels provided a promising avenue to improve the tribological performance of WPU composites. |
| format | Article |
| id | doaj-art-142b64e94ab3464f94d1284aea54b2dd |
| institution | Kabale University |
| issn | 2589-9651 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Nano Materials Science |
| spelling | doaj-art-142b64e94ab3464f94d1284aea54b2dd2025-01-04T04:56:53ZengKeAi Communications Co., Ltd.Nano Materials Science2589-96512024-12-0166752763Construction of 3D aerogels consisting of cellulose and BNNSs bridged by AgNPs for enhancing thermal and tribological properties of polyurethane compositesYu He0Yuanya Zhang1Yongjun Zhou2Junya Yuan3Xuehu Men4School of Materials and Energy, Lanzhou University, Lanzhou, 730000, PR ChinaSchool of Materials and Energy, Lanzhou University, Lanzhou, 730000, PR ChinaSchool of Materials and Energy, Lanzhou University, Lanzhou, 730000, PR ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, PR China; Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai, Yantai, 265503, PR China; National United Engineering Laboratory for Advanced Bearing Tribology, Henan University of Science and Technology, Luoyang, 471023, PR China; Corresponding author. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, PR China.School of Materials and Energy, Lanzhou University, Lanzhou, 730000, PR China; Corresponding author. School of Materials and Energy, Lanzhou University, Lanzhou, 730000, PR China.Waterborne polyurethane (WPU) is attracting widespread attention in the friction field, but pure WPU cannot meet the wear resistance requirements due to poor thermal and self-lubricating properties. Herein, a novel cellulose/BNNSs-AgNPs aerogel (CBAg) composed of zero-dimensional silver nanoparticles (AgNPs), one-dimensional cellulose and two-dimensional boron nitride nanosheets (BNNSs) was successfully fabricated. Specifically, AgNPs were loaded onto the surface of BNNSs, which could serve as bridges to connect adjacent BNNSs. Cellulose was used to construct a 3D skeleton structure for stabilizing better dispersion of inorganic fillers. Finally, the thermal and tribological properties of CBAg-WPU were improved compared to pure WPU, with a 69% increase in thermal conductivity and an 89% reduction in wear rate. This was attributed to the load-bearing capacity of cellulose and outstanding thermal and lubricant capability of BNNSs-AgNPs. In addition, BNNSs and AgNPs inside the aerogel were transferred to the sliding interface and participated in the formation of high-quality friction transfer film, further endowing CBAg-WPU composites prominent tribological performance. Therefore, the novel design of 3D hybrid aerogels provided a promising avenue to improve the tribological performance of WPU composites.http://www.sciencedirect.com/science/article/pii/S2589965124000151BNNSs-AgNPsHybrid aerogelPolymer-based compositesThermal conduction pathwaysTribological properties |
| spellingShingle | Yu He Yuanya Zhang Yongjun Zhou Junya Yuan Xuehu Men Construction of 3D aerogels consisting of cellulose and BNNSs bridged by AgNPs for enhancing thermal and tribological properties of polyurethane composites Nano Materials Science BNNSs-AgNPs Hybrid aerogel Polymer-based composites Thermal conduction pathways Tribological properties |
| title | Construction of 3D aerogels consisting of cellulose and BNNSs bridged by AgNPs for enhancing thermal and tribological properties of polyurethane composites |
| title_full | Construction of 3D aerogels consisting of cellulose and BNNSs bridged by AgNPs for enhancing thermal and tribological properties of polyurethane composites |
| title_fullStr | Construction of 3D aerogels consisting of cellulose and BNNSs bridged by AgNPs for enhancing thermal and tribological properties of polyurethane composites |
| title_full_unstemmed | Construction of 3D aerogels consisting of cellulose and BNNSs bridged by AgNPs for enhancing thermal and tribological properties of polyurethane composites |
| title_short | Construction of 3D aerogels consisting of cellulose and BNNSs bridged by AgNPs for enhancing thermal and tribological properties of polyurethane composites |
| title_sort | construction of 3d aerogels consisting of cellulose and bnnss bridged by agnps for enhancing thermal and tribological properties of polyurethane composites |
| topic | BNNSs-AgNPs Hybrid aerogel Polymer-based composites Thermal conduction pathways Tribological properties |
| url | http://www.sciencedirect.com/science/article/pii/S2589965124000151 |
| work_keys_str_mv | AT yuhe constructionof3daerogelsconsistingofcelluloseandbnnssbridgedbyagnpsforenhancingthermalandtribologicalpropertiesofpolyurethanecomposites AT yuanyazhang constructionof3daerogelsconsistingofcelluloseandbnnssbridgedbyagnpsforenhancingthermalandtribologicalpropertiesofpolyurethanecomposites AT yongjunzhou constructionof3daerogelsconsistingofcelluloseandbnnssbridgedbyagnpsforenhancingthermalandtribologicalpropertiesofpolyurethanecomposites AT junyayuan constructionof3daerogelsconsistingofcelluloseandbnnssbridgedbyagnpsforenhancingthermalandtribologicalpropertiesofpolyurethanecomposites AT xuehumen constructionof3daerogelsconsistingofcelluloseandbnnssbridgedbyagnpsforenhancingthermalandtribologicalpropertiesofpolyurethanecomposites |