CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
Water-absorptivity and mechanical behaviors of PTFE/PA6 and PTFE/PA66 blends
Zhao, RG; Luo, WB; Xiao, HM; Wu, GZ(吴国忠); Zhao, RG (reprint author), Xiangtan Univ, Inst Fundamental Mech & Mat Engn, Xiangtan 411105, Peoples R China
2006
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume16Pages:S498
AbstractThe effects of polytetrafluoroethylene (PTFE) content on water-absorptivity, tensile strength, flexural strength, and notched impact strength of polytetrafluoroethylene/polyamide 6 (PTFE/PA6) and polytetrafluoroethylene/polyamide 66 (PTFE/PA66) blends were investigated by water immersion test, uniaxial tensile test, three-point test, and Charpy impact fracture test. The water-absorptivity in the blend decreases with increasing PTFE content, which indicates that the PTFE phase restrains the polyamide phase from water absorption. For water-free blends, the addition of PTFE causes a reduction in tensile strength, while for water-absorbed PTFE/PA6 blends, the tensile strength increases with increasing PTFE. Simultaneously, the absorbed water improves the elongation, but results in a notable reduction in flexural strength of the blends. Although the addition of PTFE causes A reduction in notched impact strength of the blends, as compared to pure polyamide, the absorbed water has little effects on the notched impact strength of the blends. Finally, the effects of temperature and loading frequency on complex viscosity parameters of PTFE/PA6 and PTFE/PA66 melts were tested. It is found that the complex viscosity of PTFE/PA6 melt is reversed with increasing temperature and shear velocity, but that of PTFE/PA66 melt increases approximately in exponential form with increasing temperature. To fill polyamide with suitable mass percentage of PTFE can effectively reduce the viscosity of blend, and as a result, the molding and processing properties are improved.
KeywordPtfe/pa6 Blends Ptfe/pa66 Blends Water Absorptivity Strength Complex Viscosity
Subject AreaChemistry ; Nuclear Science & Technology
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000238442600016
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8238
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorZhao, RG (reprint author), Xiangtan Univ, Inst Fundamental Mech & Mat Engn, Xiangtan 411105, Peoples R China
Recommended Citation
GB/T 7714
Zhao, RG,Luo, WB,Xiao, HM,et al. Water-absorptivity and mechanical behaviors of PTFE/PA6 and PTFE/PA66 blends[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2006,16:S498.
APA Zhao, RG,Luo, WB,Xiao, HM,Wu, GZ,&Zhao, RG .(2006).Water-absorptivity and mechanical behaviors of PTFE/PA6 and PTFE/PA66 blends.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,16,S498.
MLA Zhao, RG,et al."Water-absorptivity and mechanical behaviors of PTFE/PA6 and PTFE/PA66 blends".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 16(2006):S498.
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