Nucleating agents in polypropylene

被引：56
|
作者：
Nagarajan, K
Levon, K
Myerson, AS [1 ]
机构：
[1] IIT, Armour Coll Engn & Sci, Chicago, IL 60616 USA
[2] Polytech Univ, Dept Chem Engn, Brooklyn, NY 11201 USA
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2000年 / 59卷 / 1-2期
关键词：
Avrami equation; crystallization; dibenzylidene sorbitol; DSC; isothermal kinetics; nucleating agents; nucleation; pine crystal; polypropylene;
D O I：
10.1023/A:1010197609840
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The effects of nucleating agents such as dibenzylidene sorbitol (DBS) (a derivative of sorbitol), pine crystal 1500, sodium and potassium benzoates in commercial grade isotactic polypropylene iPP are studied using differential scanning calorimetry (DSC). Isothermal crystallization kinetics of polypropylene to the alpha phase have been analyzed using Avrami's model. Results indicate that dibenzylidene sorbitol and pine crystal are very effective in increasing the crystallization temperature of the polymer and number of nuclei formed during crystallization.
引用
收藏
页码：497 / 508
页数：12
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