利用差示扫描量热法(DSC)和偏光显微镜(POM)研究了Zn、Al层状双金属氢氧化物(Zn2Al-LDH)/聚乳酸(PLLA)纳米复合材料的结晶性能.差示扫描量热(DSC)结果表明,在聚乳酸中加入Zn2Al-LDH,可以提高聚乳酸的结晶温度,加快其结晶速度；在120℃等温结晶时,Zn2Al-LDH可以使聚乳酸的半结晶时间由107s缩短至67s.偏光显微镜(POM)结果显示,在PLLA中加入Zn2Al-LDH,Zn2Al-LDH可以起到成核剂的作用,使PLLA在结晶的过程中晶核数目增加,球晶尺寸降低.
参考文献
| [1] | Huayu Tian;Zhaohui Tang;Xiuli Zhuang .Biodegradable synthetic polymers: Preparation, functionalization and biomedical application[J].Progress in Polymer Science,2012(2):237-280. |
| [2] | L.-T. Lim;R. Auras;M. Rubino .Processing technologies for poly(lactic acid)[J].Progress in Polymer Science,2008(8):820-852. |
| [3] | Wang, B.;Wan, T.;Zeng, W. .Dynamic rheology and morphology of polylactide/organic montmorillonite nanocomposites[J].Journal of Applied Polymer Science,2011(2):1032-1039. |
| [4] | Hongbo Li;Michel A.Huneault .Effect of nucleation and plasticization on the crystallization of poly(lactic acid)[J].Polymer: The International Journal for the Science and Technology of Polymers,2007(23):6855-6866. |
| [5] | 李斌,赵玲,李大超,曹鑫,胡丽霞,施春辉,陆海峰.超临界二氧化碳渗透成核剂至聚乳酸的分散及对基体性能的影响[J].高分子材料科学与工程,2008(06):96-99. |
| [6] | Williams, GR;O'Hare, D .Towards understanding, control and application of layered double hydroxide chemistry[J].Journal of Materials Chemistry,2006(30):3065-3074. |
| [7] | Yang, Z;Peng, HD;Wang, WZ;Liu, TX .Crystallization Behavior of Poly(epsilon-caprolactone)/Layered Double Hydroxide Nanocomposites[J].Journal of Applied Polymer Science,2010(5):2658-2667. |
| [8] | Chen, Y.;Zhou, S.;Li, F.;Chen, Y. .Synthesis and photoluminescence of Eu-doped Zn/Al layered double hydroxides[J].Journal of Materials Science,2010(23):6417-6423. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%