Non-isothermal crystallization kinetics of batch bulk polypropylene and acrylamide graft polypropylene

SHI Tiejun; ZHOU Yabin; WANG Hualin; REN Qiang

您当前的位置：

首页 >

文章列表页 >

Non-isothermal crystallization kinetics of batch bulk polypropylene and acrylamide graft polypropylene

更新时间：2025-12-10

- Non-isothermal crystallization kinetics of batch bulk polypropylene and acrylamide graft polypropylene
- CIESC Journal Issue 11, Pages: 2240-2244(2005)
- 作者机构：
  
  合肥工业大学化工学院,安徽,合肥,230009
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 November 2005，
  
  Published：25 November 2005
- 稿件说明：
移动端阅览
SHI Tiejun, ZHOU Yabin, WANG Hualin, et al. Non-isothermal crystallization kinetics of batch bulk polypropylene and acrylamide graft polypropylene[J]. CIESC Journal, 2005, (11): 2240-2244.
DOI：

SHI Tiejun, ZHOU Yabin, WANG Hualin, et al. Non-isothermal crystallization kinetics of batch bulk polypropylene and acrylamide graft polypropylene[J]. CIESC Journal, 2005, (11): 2240-2244. DOI：

摘要

采用DSC方法测试了小本体聚丙烯（PP）及其接枝丙烯酰胺（PP-g-AM）非等温结晶过程的释热情况，并对两组实验数据分别运用Jeziorny法和Mo法进行了处理和比较.结果表明，两种方法均可准确地描述PP及PP-g-AM的非等温结晶过程.PP接枝前后Avrami指数n无明显改变，表明两者结晶机理基本相同;由Jeziorny法得到接枝产物的校正晶体增长速率常数Zc略大于纯PP的Zc;由Mo法计算得出，PP-g-AM的F(T)值略小于纯PP的F（T），表明接枝物的相对结晶速率略大于纯PP的相对结晶速率.

Abstract

The non-isothermal crystallization kinetics of batch bulk polypropylene (PP) and acrylamide graft polypropylene (PP-g-AM) were studied by means of differential scanning calorimetry (DSC).The Jeziorny method and Mo method were used to analyze the DSC data.The results showed that both methods could describe the non-isothermal crystallization processes of PP and PP-g-AM accurately.The Avrami exponent did not change after grafting obviously

which indicated that the crystallization mechanism of PP-g-AM was almost the same as PP.The values of modified crystal growth constant Zc of PP-g-AM were a little higher than those of pure PP. The values of F(T) of PP-g-AM were a little lower than those of pure PP

which indicated that PP-g-AM had a faster rate of crystallization.The result conformed to the slight degradation of PP chains in the grafting process.

关键词

Keywords

references

Views

200

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

溶液初始pH值对2,4-D臭氧直接反应动力学的影响

Kinetic model on ozonation of p-toluene sulfonic acid

KLPAAM复合高吸水树脂吸附

Degradation of perfluorobutyric acid in aqueous solution by ultrasound irradiation

Kinetics of advanced treatment of high-viscosity petrochemical wastewater with oxidation by Fenton’s reagent

Related Author

陈岚

权宇珩

CAI Shaoqing

HE Yuefeng

DAI Qizhou

CHEN Jianmeng

何新建

谢建军

Related Institution

华北电力大学环境学院

浙江工业大学生物与环境工程学院

中南林业科技大学材料科学与工程学院

哈尔滨工业大学城市水资源与水环境国家重点实验室

浙江大学化学工程与生物工程学系

⁰