Curing and pyrolysis behavior of PF/B<sub>4</sub>C/PBZ composite

ZHANG Xiying; LIU Yuhong

doi:10.3969/j.issn.0438-1157.2014.08.057

您当前的位置：

首页 >

文章列表页 >

Curing and pyrolysis behavior of PF/B₄C/PBZ composite

更新时间：2025-12-10

- Curing and pyrolysis behavior of PF/B₄C/PBZ composite
- CIESC Journal Issue 8, Pages: 3268-3276(2014)
- 作者机构：
  
  西安交通大学化学工程与技术学院,陕西,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.08.057
  CLC： Q322.4
- Online First：05 August 2014，
  
  Published：05 August 2014
- 稿件说明：
移动端阅览
ZHANG Xiying, LIU Yuhong. Curing and pyrolysis behavior of PF/B₄C/PBZ composite[J]. CIESC Journal, 2014, (8): 3268-3276. DOI: 10.3969/j.issn.0438-1157.2014.08.057.
DOI：

ZHANG Xiying, LIU Yuhong. Curing and pyrolysis behavior of PF/B₄C/PBZ composite[J]. CIESC Journal, 2014, (8): 3268-3276. DOI: 10.3969/j.issn.0438-1157.2014.08.057. DOI：

摘要

酚醛树脂作为一种热固性树脂基体具有广泛的应用。为了满足其作为高性能树脂基体在苛刻条件（耐高温和抗氧化）下的使用，进一步提高酚醛树脂的耐热性能并兼顾其工艺性能显得尤为重要。采用含有无机元素的耐热性聚合物（聚硼氮烷）和碳化硼纳米粒子协同改性酚醛树脂的方法，能够克服单独加入碳化硼导致的酚醛树脂固化温度升高的问题。固化动力学分析表明，加入聚硼氮烷的酚醛树脂改性体系，其固化转化率显著高于同温度下酚醛树脂或碳化硼改性酚醛树脂的转化率。同时，聚硼氮烷和碳化硼协同改性酚醛树脂固化物在高温阶段（800～1000℃）的热解稳定性较改性前有大幅度的提高。通过红外光谱分析了不同热解程度下酚醛树脂及其改性物的结构，进一步阐述了聚硼氮烷和碳化硼协同作用对酚醛树脂改性体系固化行为和热解过程的影响机制。上述采用耐热性活性聚合物和碳化硼陶瓷粒子协同改性热固性树脂的方法，有望在高性能复合材料树脂基体中得到运用。

Abstract

Phenol-formaldehyde resin (PF) has been widely used as an excellent thermosetting resin owing to its toughness

heat tolerance

chemical inertness and good electronic property. For high performance application

especially for expanding its usage in harsh environment demanding superior thermal and oxidation stability

further enhancement of the comprehensive properties is vital. Here

a thermally stable polyborazine (PBZ) and boron carbide ceramic microparticles (B4C) were incorporated simultaneously into the phenolic resin matrix. The curing kinetics and structure evolution of the PF/B4C/PBZ composite were investigated with differential scanning calorimetry (DSC)

Fourier transform IR (FTIR) and thermal gravimetric analysis (TGA). Both the curing initiation and peak temperatures of the composite were lowered as a result of the presence of active hydrogen atom of PBZ and the hydrogen bonding among PBZ and PF. In addition

the thermal stability of PF was improved in the temperature range of 800-1000℃

with mass loss decreased from 18.2% to 5.6%

during pyrolysis with the synergistic modification of PBZ and B4C. Furthermore

after carbonization at 1550℃ for 2 h

graphitization of PF was enhanced and interlayer distance decreased from 0.3638 nm to 0.3494 nm due to the presence of PBZ and B4C. The strategy to high performance of PF via the combination of PBZ and B4C is feasible

and it allows a better way to modify the curing behavior without compromise to thermal stability.

关键词

Keywords

references

Views

754

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Thermo-oxidative degradation characteristics of TPT backsheet from end-of-life photovoltaic modules

Preparation of biobased polyurethane adhesives for flexible packaging and their water-resistance and thermal stability assessment

Revealing mechanisms of tar formation and char structural evolution during lignin pyrolysis from microscopic perspective

Progress of molten salt-assisted thermochemical high-value conversion of biomass

Characterisation of nitrogenous pollutants in solid wastes associated with waste incineration process using polymer non-catalytic reduction denitrification

Related Author

WANG Shangming

LI Xiaofeng

FANG Qiuyu

WANG Qiang

ZHANG Guoping

CHEN Yunan

CHEN Bin

ZHANG Haisheng

Related Institution

State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University

School of Chemical Engineering and Light Industry, Guangdong University of Technology

Zhongshan Kingho Chemical Co., Ltd.

State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences

Innovation Academy for Green Manufacture, Chinese Academy of Sciences

⁰

Curing and pyrolysis behavior of PF/B4C/PBZ composite

DOI：10.3969/j.issn.0438-1157.2014.08.057

摘要

Abstract

关键词

Keywords

references

Curing and pyrolysis behavior of PF/B₄C/PBZ composite