Study on Graft Kinetics of ( LLDPE / EVA)-g-AN

DAIYajie; LIUZhengkun; JIANGPeng; ZHANGWenlong; LIXuejiao

doi:10.15938/j.jhust.2023.03.014

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Study on Graft Kinetics of ( LLDPE / EVA)-g-AN

更新时间：2026-08-31

- Study on Graft Kinetics of ( LLDPE / EVA)-g-AN
- Vol. 28, Issue 3, Pages: 113-118(2023)
- 作者机构：
  
  1. 哈尔滨理工大学材料科学与化学工程学院,哈尔滨,150040
  2. 扬州龙达电工材料有限公司,江苏,扬州,225222
- 作者简介：
- 基金信息：
- DOI：10.15938/j.jhust.2023.03.014
  CLC： TQ316.6+5
- Published：2023
- 稿件说明：
移动端阅览
DAIYajie, LIUZhengkun, JIANGPeng, et al. Study on Graft Kinetics of ( LLDPE / EVA)-g-AN[J]. 2023, 28(3): 113-118.
DOI：

DAIYajie, LIUZhengkun, JIANGPeng, et al. Study on Graft Kinetics of ( LLDPE / EVA)-g-AN[J]. 2023, 28(3): 113-118. DOI： 10.15938/j.jhust.2023.03.014.

摘要

针对乙烯 - 醋酸乙烯共聚物( EVA) 极性较弱需要接枝改性以及缺少相关理论研究的问题

采用熔融接枝法

以线性低密度聚乙烯( LLDPE) 和 EVA 混合物作为基体

丙烯腈( AN) 为接枝单体制备( LLDPE / EVA = 60% / 40% ) -g-AN

研究该体系单体含量、引发剂含量和反应温度对于初始接枝速率的影响。结果表明:初始接枝反应速率与单体含量呈 0. 87 次方关系

与引发剂含量呈 0. 36 次方关系

与反应温度关系服从 Arrhenius 方程

该反应体系的接枝动力学的速率模型为 Re= Aexp( - 2. 86/T)[ M]0. 87 [ I]0. 36

接枝反应的活化能 Ea = 23. 78 kJ / mol

为 LL-DPE / EVA 熔融接枝 AN 的理论研究以及工艺优化提供依据。

Abstract

In viewof the weak polarity of ethylene vinyl acetate copolymer ( EVA) which need graft modification and the lack of relevant theoretical research

this article uses the melt grafting

using the linear lowdensity polyethylene ( LLDPE) and EVA mixture as the matrix

acrylonitrile ( AN) as the graft monomer to prepare ( LLDPE / EVA)-g-AN. The effect of the monomer content

initiator content

experimental temperature and initial grafting rate has been discussed. The results show that the initial grafting reaction rate is 0. 87 power with monomer content

0. 36 power with initiator content

and the relationship with experimental temperature obeys Arrhenius equation. The model of grafting kinetics rate of the reaction system was obtained Re= Aexp( - 2. 86/T)[ M]0. 87 [ I]0. 36

with the activation energy of the grafting reaction Ea = 23. 78 kJ / mol

providing a basis for the theoretical research and process optimization of LLDPE / EVA melt grafting AN.

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