Study on Synthesis Process and Thermal Decomposition Characteristics of Microcapsule Sodium Bicarbonate

Peng XIONG; Dan LUO; Xiang-lin PEI; Dai-qiang DONG; Hai FU; Li HE; Wei GONG

doi:10.14028/j.cnki.1003-3726.2021.02.005

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Study on Synthesis Process and Thermal Decomposition Characteristics of Microcapsule Sodium Bicarbonate

更新时间：2022-08-30

- Study on Synthesis Process and Thermal Decomposition Characteristics of Microcapsule Sodium Bicarbonate
- Polymer Bulletin Vol. 34, Issue 2, Pages: 38-45(2021)
- 作者机构：
  
  1.贵州师范大学材料与建筑工程学院,贵阳 550025
  2.国家复合改性聚合物材料工程技术研究中心,贵阳 550014
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2021.02.005
  CLC：
- Published：20 February 2021，
  
  Received：13 November 2019，
  
  Revised：02 December 2020，
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Peng XIONG, Dan LUO, Xiang-lin PEI, Dai-qiang DONG, Hai FU, Li HE, Wei GONG. Study on Synthesis Process and Thermal Decomposition Characteristics of Microcapsule Sodium Bicarbonate. [J]. Polymer Bulletin 34(2):38-45(2021)
DOI：

Peng XIONG, Dan LUO, Xiang-lin PEI, Dai-qiang DONG, Hai FU, Li HE, Wei GONG. Study on Synthesis Process and Thermal Decomposition Characteristics of Microcapsule Sodium Bicarbonate. [J]. Polymer Bulletin 34(2):38-45(2021) DOI： 10.14028/j.cnki.1003-3726.2021.02.005.

摘要

利用环氧树脂(EP)对碳酸氢钠(SB)进行包覆合成微胶囊碳酸氢钠

通过红外光谱仪(FTIR)、扫描电子显微镜(SEM)、差示扫描量热计(DSC)和热重分析仪(TG)等表征手段

分析了合成反应温度、环氧树脂与碳酸氢钠的质量比对微胶囊碳酸氢钠的结构、表面形貌特征以及热分解特性的影响。结果表明:当反应温度为70℃

环氧树脂与碳酸氢钠的质量比为1∶5时

碳酸氢钠的改性效果较理想

表面形貌比较规整

起始分解温度由118℃提高至154.9℃

分解温度区间从46.3℃缩短到24.8℃;使用微胶囊碳酸氢钠制备的微发泡聚丙烯材料

发泡质量较理想。

Abstract

Using epoxy resin (EP) to coat sodium bicarbonate (SB) to synthesize microcapsule sodium bicarbonate

Through infrared spectroscopy (FTIR)

scanning electron microscope (SEM)

differential scanning calorimeter (DSC) and thermogravimetric analyzer (TG) and other characterization methods

the synthesis reaction temperature

the quality of epoxy resin and sodium bicarbonate were analyzed the structure

surface morphology and thermal decomposition characteristics of microcapsules sodium bicarbonate. Results show that the reaction temperature is 70℃

the quality of the epoxy resin with sodium bicarbonate ratio of 1∶5

modification of sodium bicarbonate effect is ideal

the surface morphology is neat

the initial temperature from 118℃ to 154.9℃

decomposition temperature range from 46.3℃ to 24.8℃. The micro-foamed polypropylene material prepared by using microcapsule sodium bicarbonate has better foaming quality.

关键词

碳酸氢钠微胶囊环氧树脂分解温度

Keywords

Sodium bicarbonateMicrocapsuleEpoxy resinDecomposition temperature

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