Preparation and properties of bisphenol siloxane benzoxazine/silica composites

LI Ming; SHI Tiejun; YUAN Wei; XU Guomei; ZHU Linlin

doi:10.11949/j.issn.0438-1157.20150503

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Preparation and properties of bisphenol siloxane benzoxazine/silica composites

更新时间：2025-12-10

- Preparation and properties of bisphenol siloxane benzoxazine/silica composites
- CIESC Journal Issue 12, Pages: 5157-5162(2015)
- 作者机构：
  
  合肥工业大学化学与化工学院,安徽,合肥,230009
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150503
  CLC： 31
- Online First：05 December 2015，
  
  Published：05 December 2015
- 稿件说明：
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LI Ming, SHI Tiejun, YUAN Wei, et al. Preparation and properties of bisphenol siloxane benzoxazine/silica composites[J]. CIESC Journal, 2015, (12): 5157-5162.
DOI：

LI Ming, SHI Tiejun, YUAN Wei, et al. Preparation and properties of bisphenol siloxane benzoxazine/silica composites[J]. CIESC Journal, 2015, (12): 5157-5162. DOI： 10.11949/j.issn.0438-1157.20150503.

摘要

以双酚A(BPA)、γ-氨丙基三乙氧基硅烷(KH-550)、多聚甲醛为原料

合成双酚硅氧烷型苯并噁嗪(BZ)

固化得到聚双酚硅氧烷型苯并噁嗪(PB)

再用BZ与溶胶-凝胶法合成的改性二氧化硅共混

固化得到双酚硅氧烷型苯并噁嗪/二氧化硅复合材料(PBS)。采用FI-IR

1H NMR等分析手段对BZ的化学结构进行了表征;采用DSC对BZ固化性能进行研究

使用TG分析PBS的稳定性。结果表明:在氮气氛围中

BZ在181℃开环聚合;PB失重5%时的温度为302℃

失重10%时的温度为375℃

在800℃时的残炭率为53%;PBS失重5%时的温度为316℃

失重10%时的温度为407℃

在800℃时的残炭率为59%。聚合物表面及断面扫描电镜图像分析表明:BZ与溶胶-凝胶法合成的改性二氧化硅有较好的相容性且提高了韧性。

Abstract

BZ was synthesized by using BPA

KH-550 and paraformaldehyde as raw materials. PB was formed by curing of BZ. Then PBS was obtained by curing of co-mixed BZ and modified silica. The chemical structure of BZ was characterized by FT-IR

1H NMR. The curing characteristics was studied by DSC and the thermostability was analyzed by TG. The results showed that ring opening polymerization of BZ was 181℃ in N2. To PB

the temperature of 5% weight loss was 302℃ and that of 10% weight loss was 375℃

while carbon residue was 53% in 800℃. For PBS

the temperature of 5% weight loss was 316℃ and that of 10% weight loss was 407℃

while carbon residue was 59% in 800℃. The SEM image of polymers indicated that bisphenol siloxane benzoxazine with modified silica had a good compatibility and ductibility.

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