Preparation and characterization of bisphenol A-based benzoxazine/montmorillonite nanocomposites

GUO Ying; WANG Xiaoqun; WANG Xinyuan; WEI Ran; ZHANG Xu

doi:10.11918/j.issn.0367-6234.201612052

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Preparation and characterization of bisphenol A-based benzoxazine/montmorillonite nanocomposites

更新时间：2026-10-19

- Preparation and characterization of bisphenol A-based benzoxazine/montmorillonite nanocomposites
- Vol. 49, Issue 5, Pages: 2017-5(2017)
- 作者机构：
  
  北京航空航天大学材料科学与工程学院,北京,100191
- 作者简介：
- 基金信息：
- DOI：10.11918/j.issn.0367-6234.201612052
  CLC： TB332
- Published：2017
- 稿件说明：
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GUO Ying, WANG Xiaoqun, WANG Xinyuan, et al. Preparation and characterization of bisphenol A-based benzoxazine/montmorillonite nanocomposites[J]. 2017, 49(5): 2017-5.
DOI：

GUO Ying, WANG Xiaoqun, WANG Xinyuan, et al. Preparation and characterization of bisphenol A-based benzoxazine/montmorillonite nanocomposites[J]. 2017, 49(5): 2017-5. DOI： 10.11918/j.issn.0367-6234.201612052.

摘要

为解决苯并噁嗪树脂 (BZ) 固化温度高和固化后韧性差的问题，首先制备了苯并噁嗪叔铵盐 (Bz盐)，并通过阳离子交换反应对蒙脱土 (Na-MMT) 进行改性，得到Bz盐改性蒙脱土 (Bz-MMT)；其次，将Bz-MMT与BZ共混，通过除泡和加热固化，制备了苯并噁嗪树脂/蒙脱土纳米复合材料 (PBZ/Bz-MMT)；最后，采用X射线衍射 (XRD)、差示扫描量热法 (DSC) 和热重分析 (TGA) 等对Bz-MMT、BZ和MMT的混合物以及固化后的PBZ/Bz-MMT纳米复合材料进行分析，分别考察了Bz盐的用量对Bz-MMT层间距和热稳定性的影响、Bz-MMT对BZ的固化温度以及对PBZ/Bz-MMT热稳定性和力学性能的影响.结果表明：随着Bz盐用量的增加，Bz-MMT的层间距基本不变、有机含量提高、起始热分解温度降低；采用Bz-MMT改性BZ，不仅可以降低BZ的起始固化温度，而且能有效地提高PBZ/Bz-MMT的“残炭率”、拉伸强度和冲击强度.

Abstract

In order to solve the problems of brittleness and high curing temperature of polybenzoxazines

first

benzoxazine hydrochloride was synthesized with Bisphenol A-based Benzoxazine (BZ) monomer and hydrochloric acid. Second

Bz-MMT was prepared via ion-exchange reaction between Na-montmorillonite (Na-MMT) and benzoxazine hydrochloride

and then was characterized by FTIR

XRD and TGA. Thirdly

curing behavior of the mixture of BZ monomer and Na-MMT

or the mixture of BZ monomer and Bz-MMT

was followed by DSC. Fourthly

polybenzoxazine/montmorillonite nanocomposites PBZ/Na-MMT and PBZ/Bz-MMT were prepared by heating these mixtures of BZ monomer and MMT. Finally

TGA was used to test the thermal stability of PBZ and PBZ/Bz-MMT nanocomposites. The results show that for Bz-MMT

the basal spacing shows no obvious change

organic content increases and the onset decomposition temperture decreases as the amount of benzoxazine hydrochloride added increases. Compared with pure BZ monomer

the onset ring-opening polymerization temperature of the mixture of BZ monomer and Bz-MMT decreases obviously. Compared with PBZ

the char yeild

tensile strength and impact strength of PBZ/Bz-MMT nanocomposites all are increased.

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