A Novel Method to Prepare Transparent, Flexible and Thermally Conductive Polyethylene/Boron Nitride Films
The high thermal conductivity and good insulating properties of boron nitride (BN) make it a promising filler for high-performance polymer-based thermal management materials. An easy way to prepare BN-polymer composites is to directly mix BN particles with polymer matrix. However, a high concentrati...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-12-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/12/1/111 |
| _version_ | 1827667972504682496 |
|---|---|
| author | Mingming Yi Meng Han Junlin Chen Zhifeng Hao Yuanzhou Chen Yimin Yao Rong Sun |
| author_facet | Mingming Yi Meng Han Junlin Chen Zhifeng Hao Yuanzhou Chen Yimin Yao Rong Sun |
| author_sort | Mingming Yi |
| collection | DOAJ |
| description | The high thermal conductivity and good insulating properties of boron nitride (BN) make it a promising filler for high-performance polymer-based thermal management materials. An easy way to prepare BN-polymer composites is to directly mix BN particles with polymer matrix. However, a high concentration of fillers usually leads to a huge reduction of mechanical strength and optical transmission. Here, we propose a novel method to prepare polyethylene/boron nitride nanoplates (PE/BNNPs) composites through the combination of electrostatic self-assembly and hot pressing. Through this method, the thermal conductivity of the PE/BNNPs composites reach 0.47 W/mK, which gets a 14.6% improvement compared to pure polyethylene film. Thanks to the tight bonding of polyethylene with BNNPs, the tensile strength of the composite film reaches 1.82 MPa, an increase of 173.58% compared to that of pure polyethylene film (0.66 MPa). The fracture stress was also highly enhanced, with an increase of 148.44% compared to pure polyethylene film. Moreover, the addition of BNNPs in PE does not highly reduce its good transmittance, which is preferred for thermal management in devices like light-emitting diodes. This work gives an insight into the preparation strategy of transparent and flexible thermal management materials with high thermal conductivity. |
| first_indexed | 2024-03-10T03:28:42Z |
| format | Article |
| id | doaj.art-1f4b9bf4fb694e398e8ebee3ceab9d32 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T03:28:42Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-1f4b9bf4fb694e398e8ebee3ceab9d322023-11-23T12:01:40ZengMDPI AGNanomaterials2079-49912021-12-0112111110.3390/nano12010111A Novel Method to Prepare Transparent, Flexible and Thermally Conductive Polyethylene/Boron Nitride FilmsMingming Yi0Meng Han1Junlin Chen2Zhifeng Hao3Yuanzhou Chen4Yimin Yao5Rong Sun6School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, ChinaShenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaSchool of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, ChinaShenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaShenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaThe high thermal conductivity and good insulating properties of boron nitride (BN) make it a promising filler for high-performance polymer-based thermal management materials. An easy way to prepare BN-polymer composites is to directly mix BN particles with polymer matrix. However, a high concentration of fillers usually leads to a huge reduction of mechanical strength and optical transmission. Here, we propose a novel method to prepare polyethylene/boron nitride nanoplates (PE/BNNPs) composites through the combination of electrostatic self-assembly and hot pressing. Through this method, the thermal conductivity of the PE/BNNPs composites reach 0.47 W/mK, which gets a 14.6% improvement compared to pure polyethylene film. Thanks to the tight bonding of polyethylene with BNNPs, the tensile strength of the composite film reaches 1.82 MPa, an increase of 173.58% compared to that of pure polyethylene film (0.66 MPa). The fracture stress was also highly enhanced, with an increase of 148.44% compared to pure polyethylene film. Moreover, the addition of BNNPs in PE does not highly reduce its good transmittance, which is preferred for thermal management in devices like light-emitting diodes. This work gives an insight into the preparation strategy of transparent and flexible thermal management materials with high thermal conductivity.https://www.mdpi.com/2079-4991/12/1/111polyethyleneBN nanoplateselectrostatic self-assemblythermal conductivitytranslucent |
| spellingShingle | Mingming Yi Meng Han Junlin Chen Zhifeng Hao Yuanzhou Chen Yimin Yao Rong Sun A Novel Method to Prepare Transparent, Flexible and Thermally Conductive Polyethylene/Boron Nitride Films Nanomaterials polyethylene BN nanoplates electrostatic self-assembly thermal conductivity translucent |
| title | A Novel Method to Prepare Transparent, Flexible and Thermally Conductive Polyethylene/Boron Nitride Films |
| title_full | A Novel Method to Prepare Transparent, Flexible and Thermally Conductive Polyethylene/Boron Nitride Films |
| title_fullStr | A Novel Method to Prepare Transparent, Flexible and Thermally Conductive Polyethylene/Boron Nitride Films |
| title_full_unstemmed | A Novel Method to Prepare Transparent, Flexible and Thermally Conductive Polyethylene/Boron Nitride Films |
| title_short | A Novel Method to Prepare Transparent, Flexible and Thermally Conductive Polyethylene/Boron Nitride Films |
| title_sort | novel method to prepare transparent flexible and thermally conductive polyethylene boron nitride films |
| topic | polyethylene BN nanoplates electrostatic self-assembly thermal conductivity translucent |
| url | https://www.mdpi.com/2079-4991/12/1/111 |
| work_keys_str_mv | AT mingmingyi anovelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT menghan anovelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT junlinchen anovelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT zhifenghao anovelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT yuanzhouchen anovelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT yiminyao anovelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT rongsun anovelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT mingmingyi novelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT menghan novelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT junlinchen novelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT zhifenghao novelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT yuanzhouchen novelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT yiminyao novelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms AT rongsun novelmethodtopreparetransparentflexibleandthermallyconductivepolyethyleneboronnitridefilms |