Study on the Interface Structure and Bond Properties Between Isotactic Polybutene-1 and Isotactic Polypropylene

Zi-wei Hou; Xiu Niu; Qian-qian Yue; Shuai Wen; Yong-jia Liu; Ai-hua He; Hua-rong Nie

doi:10.11777/j.issn1000-3304.2023.23163

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Study on the Interface Structure and Bond Properties Between Isotactic Polybutene-1 and Isotactic Polypropylene

Research Article | 更新时间：2024-03-28

- Study on the Interface Structure and Bond Properties Between Isotactic Polybutene-1 and Isotactic Polypropylene
- Acta Polymerica Sinica Vol. 54, Issue 12, Pages: 1891-1898(2023)
- 作者机构：
  
  青岛科技大学高分子科学与工程学院山东省烯烃催化与聚合重点实验室橡塑材料与工程教育部重点实验室青岛 266042
- 作者简介：
  
  Hua-rong Nie, E-mail: niehr@iccas.ac.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2023.23163
  CLC：
- Published：20 December 2023，
  
  Published Online：13 September 2023，
  
  Received：18 June 2023，
  
  Accepted：31 July 2023
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侯紫薇,牛秀,岳倩倩等.等规聚丁烯-1与等规聚丙烯间界面的结构与性能研究[J].高分子学报,2023,54(12):1891-1898.

Hou Zi-wei,Niu Xiu,Yue Qian-qian,et al.Study on the Interface Structure and Bond Properties Between Isotactic Polybutene-1 and Isotactic Polypropylene[J].Acta Polymerica Sinica,2023,54(12):1891-1898.
侯紫薇,牛秀,岳倩倩等.等规聚丁烯-1与等规聚丙烯间界面的结构与性能研究[J].高分子学报,2023,54(12):1891-1898. DOI： 10.11777/j.issn1000-3304.2023.23163.

Hou Zi-wei,Niu Xiu,Yue Qian-qian,et al.Study on the Interface Structure and Bond Properties Between Isotactic Polybutene-1 and Isotactic Polypropylene[J].Acta Polymerica Sinica,2023,54(12):1891-1898. DOI： 10.11777/j.issn1000-3304.2023.23163.

摘要

基于构建的

PB-1与

PP的双层热压复合膜，设计两相界面结构，并通过撕裂实验、扫描电子显微镜(SEM)和透射电子显微镜(TEM)，研究高温退火温度与结晶温度对

PB-1与

PP间界面结构和性能的影响. 结果表明，

PB-1/

PP复合样品经退火处理后，界面黏结强度明显下降，且退火温度越高，界面黏结强度和撕裂面粗糙度均越低. 另外，经高温退火及两步降温结晶(即

PP于130 ℃先结晶、

PB-1于60 ℃后结晶)后，样品的平均界面黏结强度、撕裂面粗糙度、界面层厚度均比经一步降温结晶(

PP和

PB-1于60 ℃同时结晶)后的更高，且出现

PB-1分子链向

PP相区扩散的界面相结构.

Abstract

Blending of isotactic polybutene-1 (

PB-1) and isotactic polypropylene (

PP) is a facile way to obtain polymer materials with excellent performance. However

the interfacial structure that determines the properties of the

PB-1/

PP blends has rarely been studied. In this study

a bilayer film of

PB-1 and

PP that was fabricated by hot-pressing was used to analyze the influence of thermal annealing temperature and crystallization temperature on the interfacial structure and bond properties of

PB-1/

PP blend

via

tearing experiment

scanning electron microscope (SEM)

and transmission electron microscope (TEM) observation. It is found that the interfacial bonding strength of

PB-1/

PP blends significantly decreased with the thermal annealing

and the higher annealing temperature resulted in the lower interfacial bonding strength and a lower rough tear surface. Also

the

PB-1/

PP blend that underwent two-step crystallization involving the crystallization of

PP at 130 ℃ and then the crystallization of

PB-1 at 60 ℃ after thermal annealing exhibited a higher interfacial bonding strength and a rougher tear surface than those of the samples which underwent one-step crystallization involving the crystallization of

PP and

PB-1 at 60 ℃. After two-step crystallization

a thicker interfacial layer was observed by TEM

and the diffusion of

PB-1 molecular chains towards the

PP phase region was also observed.

关键词

等规聚丁烯-1等规聚丙烯共混改性界面相结构

Keywords

Isotactic polybutene-1Isotactic polypropyleneBlending modificationInterfacial structure and property

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School of Chemistry Engineering, Changchun University of Technology

School of Applied Chemistry and Engineering, University of Science and Technology of China

State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences

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University of Science and Technology of China

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