CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Merits of the Addition of PTFE Micropowder in Supercritical Carbon Dioxide Foaming of Polypropylene: Ultrahigh Cell Density, High Tensile Strength, and Good Sound Insulation
Yang, CG; Xing, Z; Wang, MH; Zhao, Q; Wu, GZ
2018
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume57Issue:5Pages:1498-1505
Subtype期刊论文
AbstractUltrahigh-cell-density polypropylene (PP) foam was prepared by supercritical carbon dioxide (scCO(2)) foaming in the presence of porous polytetrafluoroethylene (PTFE) micropowder. The voids of PTFE microparticles were filled with supercritical CO2, causing them to split into multiple granules due to the force of its expansion during the pressure release, resulting in the formation of a large number of nucleation sites. The cell density of this foam reached 10(10)-10(11) cells/cm(3), which was 2-5 orders of magnitude higher than pristine PP foam. We proposed that the nanoscale granules resulting from the splitting of PTFE microparticles, and the growth of nucleated small cells that generated the local strain field variation in the multiple-phase system, were responsible for the considerably increased nucleation number of PP foaming. Additionally, the tensile strength and sound absorption property of PP/PTFE foam were largely enhanced and the preparation of ultrahigh-cell-density PP/PTFE foam was easily controlled over a wider foaming temperature window.
KeywordFlexible Polyurethane Foams Continuous Extrusion Linear Polypropylene Compressed Co2 Behavior Absorption Crystallization Nanocomposites Performance Nanofibers
DOI10.1021/acs.iecr.7b04644
Indexed BySCI
Language英语
WOS IDWOS:000424851800018
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/29069
Collection中科院上海应用物理研究所2011-2018年
Affiliation1.Yang, CG
2.Xing, Z
3.Wang, MH
4.Zhao, Q
5.Wu, GZ
Recommended Citation
GB/T 7714
Yang, CG,Xing, Z,Wang, MH,et al. Merits of the Addition of PTFE Micropowder in Supercritical Carbon Dioxide Foaming of Polypropylene: Ultrahigh Cell Density, High Tensile Strength, and Good Sound Insulation[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2018,57(5):1498-1505.
APA Yang, CG,Xing, Z,Wang, MH,Zhao, Q,&Wu, GZ.(2018).Merits of the Addition of PTFE Micropowder in Supercritical Carbon Dioxide Foaming of Polypropylene: Ultrahigh Cell Density, High Tensile Strength, and Good Sound Insulation.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,57(5),1498-1505.
MLA Yang, CG,et al."Merits of the Addition of PTFE Micropowder in Supercritical Carbon Dioxide Foaming of Polypropylene: Ultrahigh Cell Density, High Tensile Strength, and Good Sound Insulation".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 57.5(2018):1498-1505.
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