Crystallization, rheological behavior and mechanical properties of carbon nanotube/metallocene polypropylene composites
In this paper, metallocene polypropylene (mPP) composites filled with carbon nanotubes (CNTs) were prepared using twin-screw extruder. The crystallization behavior, mechanical properties and rheological behavior were characterized by a differential scanning calorimetry (DSC), universal material test...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2023-01-01
|
| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/acb41b |
| _version_ | 1797746635235655680 |
|---|---|
| author | Kaili Zhu Xiuxue Guo Qinglu Zhang Changheng Liu Wenjin Li Penghui Shen Hongsheng Tan |
| author_facet | Kaili Zhu Xiuxue Guo Qinglu Zhang Changheng Liu Wenjin Li Penghui Shen Hongsheng Tan |
| author_sort | Kaili Zhu |
| collection | DOAJ |
| description | In this paper, metallocene polypropylene (mPP) composites filled with carbon nanotubes (CNTs) were prepared using twin-screw extruder. The crystallization behavior, mechanical properties and rheological behavior were characterized by a differential scanning calorimetry (DSC), universal material testing machine and rotational rheometer. The results of DSC indicated that the effect of CNTs on heterogeneous nucleation of mPP was very obvious and the crystallizability of the resin matrix was improved after adding CNTs, especially the initial crystallization temperature ( T _0 ), crystallization temperature ( T _c ) increased by 9.63 °C and 8.28 °C when the CNTs content was 1.25 wt%. The yield stress and elastic modulus increased to 33.98 MPa and 1605.6 MPa as the CNTs concentration increased to 1.0 wt% in contrast to that of the neat mPP. The results of SEM images showed that the better dispersion and adhesion of CNTs into polymer matrix. The results of rotational rheometer proved that interactions increased between CNTs and mPP as the content of CNTs increasing. |
| first_indexed | 2024-03-12T15:40:39Z |
| format | Article |
| id | doaj.art-dbd07a22e9ab47ef87e05454b3805658 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:40:39Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-dbd07a22e9ab47ef87e05454b38056582023-08-09T16:02:25ZengIOP PublishingMaterials Research Express2053-15912023-01-0110202530110.1088/2053-1591/acb41bCrystallization, rheological behavior and mechanical properties of carbon nanotube/metallocene polypropylene compositesKaili Zhu0Xiuxue Guo1Qinglu Zhang2Changheng Liu3Wenjin Li4Penghui Shen5Hongsheng Tan6https://orcid.org/0000-0002-2277-7529Shandong Qinghe Chemical Technology Co., Ltd, Zibo 255000, People’s Republic of ChinaShandong Qinghe Chemical Technology Co., Ltd, Zibo 255000, People’s Republic of ChinaShandong Qinghe Chemical Technology Co., Ltd, Zibo 255000, People’s Republic of ChinaShandong Qinghe Chemical Technology Co., Ltd, Zibo 255000, People’s Republic of ChinaShandong Qinghe Chemical Technology Co., Ltd, Zibo 255000, People’s Republic of ChinaShandong Qinghe Chemical Technology Co., Ltd, Zibo 255000, People’s Republic of ChinaShandong Qinghe Chemical Technology Co., Ltd, Zibo 255000, People’s Republic of China; School of Materials Science and Engineering, Shandong University of Technology , Zibo 255049, People’s Republic of ChinaIn this paper, metallocene polypropylene (mPP) composites filled with carbon nanotubes (CNTs) were prepared using twin-screw extruder. The crystallization behavior, mechanical properties and rheological behavior were characterized by a differential scanning calorimetry (DSC), universal material testing machine and rotational rheometer. The results of DSC indicated that the effect of CNTs on heterogeneous nucleation of mPP was very obvious and the crystallizability of the resin matrix was improved after adding CNTs, especially the initial crystallization temperature ( T _0 ), crystallization temperature ( T _c ) increased by 9.63 °C and 8.28 °C when the CNTs content was 1.25 wt%. The yield stress and elastic modulus increased to 33.98 MPa and 1605.6 MPa as the CNTs concentration increased to 1.0 wt% in contrast to that of the neat mPP. The results of SEM images showed that the better dispersion and adhesion of CNTs into polymer matrix. The results of rotational rheometer proved that interactions increased between CNTs and mPP as the content of CNTs increasing.https://doi.org/10.1088/2053-1591/acb41bmetallocene polypropylenecarbon nanotubescrystallization behaviormechanical propertiesrheological behavior |
| spellingShingle | Kaili Zhu Xiuxue Guo Qinglu Zhang Changheng Liu Wenjin Li Penghui Shen Hongsheng Tan Crystallization, rheological behavior and mechanical properties of carbon nanotube/metallocene polypropylene composites Materials Research Express metallocene polypropylene carbon nanotubes crystallization behavior mechanical properties rheological behavior |
| title | Crystallization, rheological behavior and mechanical properties of carbon nanotube/metallocene polypropylene composites |
| title_full | Crystallization, rheological behavior and mechanical properties of carbon nanotube/metallocene polypropylene composites |
| title_fullStr | Crystallization, rheological behavior and mechanical properties of carbon nanotube/metallocene polypropylene composites |
| title_full_unstemmed | Crystallization, rheological behavior and mechanical properties of carbon nanotube/metallocene polypropylene composites |
| title_short | Crystallization, rheological behavior and mechanical properties of carbon nanotube/metallocene polypropylene composites |
| title_sort | crystallization rheological behavior and mechanical properties of carbon nanotube metallocene polypropylene composites |
| topic | metallocene polypropylene carbon nanotubes crystallization behavior mechanical properties rheological behavior |
| url | https://doi.org/10.1088/2053-1591/acb41b |
| work_keys_str_mv | AT kailizhu crystallizationrheologicalbehaviorandmechanicalpropertiesofcarbonnanotubemetallocenepolypropylenecomposites AT xiuxueguo crystallizationrheologicalbehaviorandmechanicalpropertiesofcarbonnanotubemetallocenepolypropylenecomposites AT qingluzhang crystallizationrheologicalbehaviorandmechanicalpropertiesofcarbonnanotubemetallocenepolypropylenecomposites AT changhengliu crystallizationrheologicalbehaviorandmechanicalpropertiesofcarbonnanotubemetallocenepolypropylenecomposites AT wenjinli crystallizationrheologicalbehaviorandmechanicalpropertiesofcarbonnanotubemetallocenepolypropylenecomposites AT penghuishen crystallizationrheologicalbehaviorandmechanicalpropertiesofcarbonnanotubemetallocenepolypropylenecomposites AT hongshengtan crystallizationrheologicalbehaviorandmechanicalpropertiesofcarbonnanotubemetallocenepolypropylenecomposites |