Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| 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 Publication | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| ISSN | 1003-6326 |
| Volume | 16Pages:S498 |
| Abstract | The 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. |
| Keyword | Ptfe/pa6 Blends Ptfe/pa66 Blends Water Absorptivity Strength Complex Viscosity |
| Subject Area | Chemistry ; Nuclear Science & Technology |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000238442600016 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/8238 |
| Collection | 中科院上海应用物理研究所2004-2010年 |
| Corresponding Author | Zhao, 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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