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聚铝碳硅烷的流变性和纺丝性研究 被引量:2

Study on the Rheology and Spinnability of Polyaluminocarbosilane
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摘要 采用单孔纺丝装置对不同铝含量的聚铝碳硅烷(PACS)的流变性和流变性进行研究。结果表明:随着温度升高,PACS熔体的流体特性逐渐接近牛顿流体;PACS熔体粘度对温度有强烈的依赖性,其软化点在190℃~220℃范围时,其粘流活化能在190~260kJ/mol之间;当PACS的粘度在100Pa.s左右时可纺性好;铝含量对PACS的流变性能和可纺性有重要的影响,随着铝含量的增加,PACS熔体的粘度增大,因而PACS的纺丝温度更高,可纺性变差。 The theology and spinnability of PACS with various aluminum contents were studied by a single-pole spinning equipment. It has been shown that: the melting PACS behaves to be a near-Newton fluid with increasing temperature. The viscosity of PACS strongly depends on the temperature. Its apparent viscosity energy occurs between the range of 190 - 260 kJ/mol when its softening point lies between the range of 190℃ -220℃. Its spinnability is good when its viscosity is about 100Pa·s. It is revealed that the higher AI content in PACS will increase the viscosity, leading to a higher spinning temperature and poorer spinnability.
出处 《国防科技大学学报》 EI CAS CSCD 北大核心 2009年第6期144-148,共5页 Journal of National University of Defense Technology
基金 国家自然科学基金资助项目(59972042)
关键词 聚铝碳硅烷 流变性能 纺丝性能 SIC纤维 SiC(Al)纤维 polyaluminocarbosilane rheology spinnability SiC fibers SiC(Al)fibers
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参考文献8

  • 1Johnson D W, Evans A G, Goettler R W, Ceramic Fibers and Coatings: Advanced Materials for the Twenty-first Century[ M]. Washington D. C. : National Academy Press, 1998.
  • 2Cao F, Li X D, Peng P, et al. Structural Evolution and Associated Properties on Conversion from Si-C-O-Al Ceramic Fibers to Si-C-Al Fibers by Sintering[J]. J. Mater. Chem., 2002, 12: 606-610.
  • 3赵大方,李效东,郑春满,胡天娇.采用聚硅碳硅烷与乙酰丙酮铝合成聚铝碳硅烷的机理[J].北京科技大学学报,2007,29(2):130-134. 被引量:9
  • 4Morishitaw K, Ochiai S, Okuda H, et al. Fracture Toughness of a Crystalline Silicon Carbide Fiber(Tyranno- SA3)[J].J. Am. Ceram. Soc., 2006, 89(8): 2571-2576.
  • 5Ishikawa T, Kohtoku Y, Kumagawa K, et al. High-strength Alkali-resistant Sintered SiC Fibre Stable to2200℃[J].Nature, 1998, 391: 773-775.
  • 6王应德,蓝新艳,王鲁,薛金根,姜勇刚.聚碳硅烷纤维成形过程的稳定性研究[J].国防科技大学学报,2004,26(6):21-24. 被引量:1
  • 7王应德,薛金根,蓝新艳,宋永才,肖加余.连续聚碳硅烷纤维断裂机理与可纺性研究[J].高技术通讯,2004,14(8):47-50. 被引量:3
  • 8程祥珍.聚碳硅烷的高温高压合成与碳化硅纤维制备研究[D].长沙:国防科技大学,2004:40-88.

二级参考文献29

  • 1王应德,薛金根,蓝新艳,宋永才,肖加余.连续聚碳硅烷纤维断裂机理与可纺性研究[J].高技术通讯,2004,14(8):47-50. 被引量:3
  • 2王应德 鲁建英.-[J].功能材料,1998,29:991-991.
  • 3Wang Y,Song Y,Feng C. In: The 2nd International Symposium on the Science of Eng. Ceramics, Tokyo. 1998
  • 4Youngblood G E, et al. Journal of Nuclear Materials, 1998, 258-263: 1551
  • 5Youngblood G E, Lewinsohn C, Jones R H, et al. Journal of Nuclear Materials, 2001, 289(1-2): 1
  • 6Idesaki A, Narisawa M, Okamura K, et al. J Mater Sci, 2001, 36: 5565
  • 7Ziabicki A Takserman-Krozer. Roczniki Chemii, 1963, 37: 1503-1511,1607
  • 8Yajima S,Hayashi J,Omori M,et al.Development of a Silicon Carbide Fiber with High Tensile Strength[J].Nature,1976,261(5562):683-685.
  • 9Wang Y D,Song Y C,Feng C X.Melt Spun of Continuous Polycar Bosilance Fibers[J].Science and Engineering of Composite Materials,2000,9 (3): 159-162.
  • 10Youngblood G E,et al.Radiation Response of SiC-based Fibers[J].Journal of Nuclear Materials,1998,258-263: 1551-1556.

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