研究了线性双峰聚乙烯(LBPE)、高压聚乙烯(LDPE)与线性低密度聚乙烯(LLDPE)共混物熔体的流变行为和力学性能.讨论了共混物的组成、剪切应力和剪切速率对熔体粘度和膨胀比的影响.结果说明,共混物熔体为假塑性流体,LBPE含量为70%时熔体粘度最大,含量高于60%时挤出胀大变小,含量高于40%时力学强度增大.
参考文献
| [1] | 张旭之;王松汉;戚以政.乙烯衍生物工学[M].北京:化学工业出版社,1995:13-135. |
| [2] | High Molecular Mass Bimodal Polyethylene[M].International Plastics New for China, June,2001 |
| [3] | Wong A C Y .[J].Polymer Engineering and Science,1991,21:1549-1552. |
| [4] | 刘琛阳,李育英,王进,何嘉松,张林.茂金属聚乙烯和低密度聚乙烯共混物的流变行为[J].高等学校化学学报,2001(02):298-302. |
| [5] | Gao JG.;Wang DY.;Yang LT.;Li DL. .Rheological behavior and mechanical properties of blends of chlorinated polyethylene with poly(acrylonitrile-styrene-methyl methacrylate)[J].European Polymer Journal,2000(11):2517-2522. |
| [6] | Chang D H.Rheology in Polymer Processing[M].New York Academic Press,1976:106-109. |
| [7] | Rajasekaran JJ.;Honeycutt JD.;Curro JG. .THEORY FOR THE PHASE BEHAVIOR OF POLYOLEFIN BLENDS - APPLICATION TO THE POLYETHYLENE/ISOTACTIC POLYPROPYLENE BLEND[J].Macromolecules,1995(20):6843-6853. |
| [8] | HAN C D.Rheology in Polymer Processing[M].New York:Academic Press,1976:132-138. |
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%