OMMT对PTT/ASA体系相形态和性能的影响<sup>*</sup>

doi:10.11901/1005.3093.2013.748

材料研究学报

2014, Vol. 28

Issue (2): 107-113 DOI: 10.11901/1005.3093.2013.748

本期目录 | 过刊浏览

OMMT对PTT/ASA体系相形态和性能的影响^*

陈君¹,陈庆华^2,³,钱庆荣^2,³,黄宝铨^2,³,刘欣萍^2,³,许兢^2,³,肖荔人¹(

)

1. 福建师范大学材料科学与工程学院福州 350007
2. 福建师范大学环境科学与工程学院福州 350007
3. 福建省污染控制与资源循环重点实验室福州 350007

Effect of OMMT on Morphology and Property of PTT/ASA Blends

Jun CHEN¹,Qinghua CHEN^2,³,Qingrong QIAN^2,³,Baoquan HUANG^2,³,Xinping LIU^2,³,Jing XU^2,³,Liren XIAO^1,^**(

)

1. College of Materials Science and Engineering, Fujian Normal University, Fuzhou, 350007
2. College of Environmental Science and Engineering, Fujian Normal University, Fuzhou, 350007
3. Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou, 350007

引用本文:

陈君,陈庆华,钱庆荣,黄宝铨,刘欣萍,许兢,肖荔人. OMMT对PTT/ASA体系相形态和性能的影响^*[J]. 材料研究学报, 2014, 28(2): 107-113.
Jun CHEN, Qinghua CHEN, Qingrong QIAN, Baoquan HUANG, Xinping LIU, Jing XU, Liren XIAO. Effect of OMMT on Morphology and Property of PTT/ASA Blends[J]. Chinese Journal of Materials Research, 2014, 28(2): 107-113.

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摘要:

用熔融插层法制备聚对苯二甲酸丙二醇酯(PTT)/丙烯腈-苯乙烯-丙烯酸酯三元共聚物(ASA)/有机蒙脱土(OMMT)复合材料, 研究了OMMT对PTT/ASA体系相形态、结晶性能、流变性能和力学性能的影响。结果表明, OMMT主要以剥离态分布在PTT基体相和界面处, 使ASA分散相的尺寸变小, 体系的弹性模量和复数黏度得到提高; 同时, OMMT是异相成核剂, 使体系结晶峰向高温偏移; 依据Palierne和Gramspacher-Meissner模型评估, 发现OMMT可增大聚合物的界面模量和界面层厚度, 在适量范围内使体系的拉伸强度和缺口冲击强度有所提高。

关键词 ：有机高分子材料, PTT/ASA体系, OMMT, 相形态, 流变性能, 力学性能

Abstract：

Nanocomposites of poly(trimethylene-terephthalate)/poly(acrylonitrile-styrene-acrylate)/organic montmorillonite (PTT/ASA/OMMT) were prepared by means of melt-blending intercalation. The effect of OMMT contents on the phase morphology, crystallization behavior, rheological- and mechanical-properties were investigated. The results show that the size of dispersed phases decreases with increasing OMMT content. The crystallization peak shifts to high temperature and melting peak moves to low temperature owing to the heterogeneous nucleation of OMMT. The exfoliated OMMT is located in the PTT matrix and at interface of PTT/ASA phases The rheological measurements show that the elastic modulus and complex viscosity increase with increasing OMMT content. The interfacial modulus and interfacial layer thickness predicted by Palierne and Gramspacher-Meissner models are enhanced by introduction of OMMT. The tensile strength and notched impact strength of blends increase with increasing OMMT content.

Key words： organic polymer materials PTT/ASA blends OMMT morphology rheology mechanical property

收稿日期: 2013-10-10

基金资助:* 福建省自然科学基金2011J01287 和2012J01195 资助项目。

作者简介: 本文联系人: 肖荔人, 教授级高工

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图1 PTT/ASA/OMMT体系的SEM像

图2 PPT/ASA/OMMT体系的DSC曲线

表1 PPT/ASA/OMMT体系的DSC分析数据

图3 OMMT, PTT, PTT/ASA和PTT/ASA/OMMT体系的XRD谱图

图4 PTT/ASA/OMMT体系的动态频率扫描曲线

图5 PTT/ASA/OMMT体系的Han图

图6 PTT/ASA/OMMT体系的加权松弛谱图

图7 Palierne和Gramspacher-Meissner模型评估PTT/ASA/OMMT体系的黏弹行为

图8 PTT/ASA/OMMT体系的力学性能曲线

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