期刊文献+

PTT/TPEE共混合金的流变学及成型温度对韧性的影响 被引量:2

Rheology and Influences of Molding Temperatures on the Impact Strength of PTT/TPEE Blends
下载PDF
导出
摘要 采用毛细管流变仪、冲击试验机、差示扫描量热仪(DSC)和广角X射线衍射仪(WAXD)研究了聚对苯二甲酸丙二醇酯(PTT)/热塑性聚酯弹性体(TPEE)共混合金的流变性能和成型温度对冲击强度的影响。结果表明,共混物的表观黏度和假塑性随着TPEE含量的增加而提高,TPEE对PTT具有较好的增粘效果,有利于改善PTT的加工性能;且TPEE对PTT还具有良好的增韧效果,但共混材料的韧性随着成型温度的升高而降低,主要是由于在较高的成型温度下共混材料的结晶度较高,高结晶度的样条具有较低的韧性。 In order to toughen poly(trimethylene terephthalate)(PTT) material, thermoplastic polyester elastomer (TPEE) was blended with PTT to prepare PTT/TPEE blends. Their rheology behaviors, impact strength dependence on molding temperatures were investigated by capillary rheometer, impact tester, wide angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC), respectively. The results suggest that the apparent viscosities and the pseudoplasticity of PTT/TPEE blends increase with increasing TPEE contents, and TPEE has good effect on improving the processing viscosity of PTT. TPEE also has good toughening effect on the blend materials but the toughness decreases with increasing molding temperatures from 25 ℃ to 75 ℃ due to the increase of their crystallinity.
出处 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2013年第10期60-63,共4页 Polymer Materials Science & Engineering
基金 河北省自然科学基金资助项目(B2010000219)
关键词 聚对苯二甲酸丙二醇酯 热塑性聚酯弹性体 流变学 冲击强度 成型温度 poly(trimethylene terephthalate) thermoplastic polyester elastomer rheology impact strength moldingtemperature
  • 相关文献

参考文献8

二级参考文献30

  • 1闰明涛,姚晨光,王迎进,白利斌,高俊刚.PTT/纳米CaCO_3复合材料流变行为及结晶性能研究[J].中国塑料,2006,20(2):56-60. 被引量:4
  • 2XUE M L, YU Y L, CHUAH H H, et al. Melting and crystallization behaviors of compatibilized poly (trimethylene terephthalate) / acrylonitrile-butadiene styrene blends [ J ]. J. Appl. Polym. Sci., 2008, 108: 3334-3345. 被引量:1
  • 3XUE M L, YU Y L, CHUAH H H, etal. Miscibility and eompatibilization of poly ( trimethylene terephthalate)/acrylonitrile butadienestyrene blends[J]. Eur. Polym. J., 2007, 43. 3826- 3837. 被引量:1
  • 4KALAKKUNNATH S, KALIKA D S. Dynamic mechanicsl and dielectric relaxation characteristics of poly ( trimethylene terephthalate)[J]. Polymer, 2006, 47: 7085-7094. 被引量:1
  • 5CHEN J, YANG W, LIU Z Y, et al. Influence of heat treatment on toughening of polyehtylene-oetene eopolymer (M-PEO)/poly (ethylene terephthalate) (PET) blends[J]. J. Mater. Sci. ,2004, 39: 4049-4051. 被引量:1
  • 6GUERRICA-ECHEVARRIA G, EGUIAZABAL J I, NAZABAL J. Influence of compatibilization on the mechanical behavior of poly (trimethylene terephthalate)/poly ( ethylene octene) blends [J ]. Eur. Polym. J., 2007, 43: 1027-1037. 被引量:1
  • 7CAASTELLANO M, TURTURRO A, VALENTI B, et al. Reactive blending of aromatic polyesters: thermal behaviour of coprecipitated mixtures PTT/PET [J]. Maeromol. Chem. Phys., 2006, 207(2): 242-251. 被引量:1
  • 8RUN M T, SONG H Z, HAO Y P, et al. Crystal morphology, melting behaviors and isothermal crystallization kinetics of SCF/PTT composites [J]. Polym. Compos., 2009, 30(1): 87-94. 被引量:1
  • 9RUN M T, YAO C G, WANG Y J, et al. Non-isothermal crystallization behavior and crystals morphology of poly(trimethylene terephthalate)/nano-CaCO3 composites [ J ]. Polym. Compos., 2008,29(11) : 1235-1243. 被引量:1
  • 10XUE M L, YU Y L, CHUAH H H, et al. Miscibility and compatibilization of poly(trimethylene terephthalate) /acrylonitrilebutadiene-styrene blends [ J ]. Eur. Polym. J. , 2007, 43 ( 9 ) : 3826-3837. 被引量:1

共引文献22

同被引文献13

引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部