Microstructure and properties of PA6/HDPE/CNTs blends of different mixing sequences under normal stress dominated flow field
Melt blending method dominated by normal stress for polymer-based composite was realized via a self-developed vane mixer. Effects of mixing sequences and mixing time on the microstructure, rheological properties, thermal properties and tensile strength of PA6/HDPE/CNTs ternary blend were experimenta...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2020-02-01
|
| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2020/V48/I2/87 |
| _version_ | 1797968165414633472 |
|---|---|
| author | YIN Xiao-chun YIN You-hua CHENG Di YANG Zhi-tao |
| author_facet | YIN Xiao-chun YIN You-hua CHENG Di YANG Zhi-tao |
| author_sort | YIN Xiao-chun |
| collection | DOAJ |
| description | Melt blending method dominated by normal stress for polymer-based composite was realized via a self-developed vane mixer. Effects of mixing sequences and mixing time on the microstructure, rheological properties, thermal properties and tensile strength of PA6/HDPE/CNTs ternary blend were experimentally investigated. SEM results show that the normal stress flow field can realize the uniform dispersion of PA6 and CNTs in a short time. Compared with the other two mixing sequences, the blend of the mixing sequence that HDPE and CNTs are firstly mixed to form the masterbatch, and then the masterbatch is mixed with PA6 (HDPE/CNTs+PA6) has the smallest PA6 particle size; DSC results show that <i>X</i><sub>c</sub> is significantly affected by the mixing sequence; mechanical properties show that the better tensile strength is obtained when the mixing sequence is HDPE/CNTs+PA6 and proper mixing time can further improve the tensile strength of the blend.The results aforementioned indicate that the normal stress flow field provides enough energy for the CNTs to overcome the energy barrier of the HDPE/PA6 two-phase interface and migrate into the PA6 phase, which proves that the normal stress flow field has higher dispersion efficiency. |
| first_indexed | 2024-04-11T02:42:38Z |
| format | Article |
| id | doaj.art-cbf3c39b758c42529f7827c35dde50a8 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:42:38Z |
| publishDate | 2020-02-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-cbf3c39b758c42529f7827c35dde50a82023-01-02T18:50:37ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812020-02-01482879320200212Microstructure and properties of PA6/HDPE/CNTs blends of different mixing sequences under normal stress dominated flow fieldYIN Xiao-chun0YIN You-hua1CHENG Di2YANG Zhi-tao3National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China;National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China;National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China;National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640, China;Melt blending method dominated by normal stress for polymer-based composite was realized via a self-developed vane mixer. Effects of mixing sequences and mixing time on the microstructure, rheological properties, thermal properties and tensile strength of PA6/HDPE/CNTs ternary blend were experimentally investigated. SEM results show that the normal stress flow field can realize the uniform dispersion of PA6 and CNTs in a short time. Compared with the other two mixing sequences, the blend of the mixing sequence that HDPE and CNTs are firstly mixed to form the masterbatch, and then the masterbatch is mixed with PA6 (HDPE/CNTs+PA6) has the smallest PA6 particle size; DSC results show that <i>X</i><sub>c</sub> is significantly affected by the mixing sequence; mechanical properties show that the better tensile strength is obtained when the mixing sequence is HDPE/CNTs+PA6 and proper mixing time can further improve the tensile strength of the blend.The results aforementioned indicate that the normal stress flow field provides enough energy for the CNTs to overcome the energy barrier of the HDPE/PA6 two-phase interface and migrate into the PA6 phase, which proves that the normal stress flow field has higher dispersion efficiency.http://jme.biam.ac.cn/CN/Y2020/V48/I2/87normal stress dominatedcarbon nano-tubes (cnts)high-density polyethylene (hdpe)polyamide 6 (pa6)mixing sequence |
| spellingShingle | YIN Xiao-chun YIN You-hua CHENG Di YANG Zhi-tao Microstructure and properties of PA6/HDPE/CNTs blends of different mixing sequences under normal stress dominated flow field Cailiao gongcheng normal stress dominated carbon nano-tubes (cnts) high-density polyethylene (hdpe) polyamide 6 (pa6) mixing sequence |
| title | Microstructure and properties of PA6/HDPE/CNTs blends of different mixing sequences under normal stress dominated flow field |
| title_full | Microstructure and properties of PA6/HDPE/CNTs blends of different mixing sequences under normal stress dominated flow field |
| title_fullStr | Microstructure and properties of PA6/HDPE/CNTs blends of different mixing sequences under normal stress dominated flow field |
| title_full_unstemmed | Microstructure and properties of PA6/HDPE/CNTs blends of different mixing sequences under normal stress dominated flow field |
| title_short | Microstructure and properties of PA6/HDPE/CNTs blends of different mixing sequences under normal stress dominated flow field |
| title_sort | microstructure and properties of pa6 hdpe cnts blends of different mixing sequences under normal stress dominated flow field |
| topic | normal stress dominated carbon nano-tubes (cnts) high-density polyethylene (hdpe) polyamide 6 (pa6) mixing sequence |
| url | http://jme.biam.ac.cn/CN/Y2020/V48/I2/87 |
| work_keys_str_mv | AT yinxiaochun microstructureandpropertiesofpa6hdpecntsblendsofdifferentmixingsequencesundernormalstressdominatedflowfield AT yinyouhua microstructureandpropertiesofpa6hdpecntsblendsofdifferentmixingsequencesundernormalstressdominatedflowfield AT chengdi microstructureandpropertiesofpa6hdpecntsblendsofdifferentmixingsequencesundernormalstressdominatedflowfield AT yangzhitao microstructureandpropertiesofpa6hdpecntsblendsofdifferentmixingsequencesundernormalstressdominatedflowfield |