溶胶-凝胶法制备PEW/SiO<sub>2</sub>杂化材料及表征

龚方红; 刘春林; 刘庆广; 王利娜; 陶国良

您当前的位置：

首页 >

文章列表页 >

溶胶-凝胶法制备PEW/SiO₂杂化材料及表征

更新时间：2025-12-10

- 溶胶-凝胶法制备PEW/SiO₂杂化材料及表征
- CIESC Journal Issue 12, (2007)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 December 2007，
  
  Published：05 December 2007
- 稿件说明：
移动端阅览
龚方红, 刘春林, 刘庆广, et al. 溶胶-凝胶法制备PEW/SiO₂杂化材料及表征[J]. CIESC Journal, 2007, (12).
DOI：

龚方红, 刘春林, 刘庆广, et al. 溶胶-凝胶法制备PEW/SiO₂杂化材料及表征[J]. CIESC Journal, 2007, (12). DOI：

摘要

通过熔融接枝反应将乙烯基三甲氧基硅烷（VTMS）接枝到聚乙烯蜡（PEW）分子链上，接枝物红外光谱（FTIR）的1090、1030、960 cm-1等处出现了—Si—O—CH3的特征吸收峰。以正硅酸乙酯（TEOS）为前驱体，混入接枝PEW中，通过溶胶-凝胶法（sol-gel）制备了PEW/SiO2杂化材料。使用透射电镜（TEM）和热重分析（TG）研究了杂化材料的形态及性能，结果表明，通过sol-gel可以制备SiO2含量为0. 98%～4. 12%的杂化材料，SiO2颗粒与PEW接枝物分子间具有良好的相容性，纳米SiO2的存在提高了PEW的耐热性能，当SiO2含量为3. 75%时，PEW的分解温度提高了21. 34℃。

Abstract

The molt grafting reaction was employed to graft vinyl trimethoxysilane（VTMS）to polyethylene-wax（PEW），and the characteristic absorbance peaks at 1090 cm-1，1030 cm-1 and 960 cm-1 in FTIR spectra proved the successful grafting. As a precursor，tetraethoxysilane（TEOS）was mixed with grafted PEW and then a PEW/SiO2 hybrid material could be prepared by the sol-gel process. The morphology and properties of the hybrid were studied with FTIR，TEM and TG/DTA. The study indicates that the hybrid containing 0. 98%—4. 12% of SiO2 could be prepared via the sol-gel process and good compatibility of the molecules of grafted PEW and SiO2 particles was observed. The study also showed that the thermostability of PEW was improved at the presence of nano-SiO2 particles. The decomposing temperature of PEW was increased by 21. 34℃ when 3. 75% of SiO2 was present.

关键词

Keywords

references

Views

450

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Analysis of flow field characteristics and mixing performance of different SK-type static mixers

Research on the characterization of the molecular weight and its distribution of perfluoropolyether

Multi objective optimization of flow and heat transfer characteristics of modified manifold microchannel heat sink based on machine learning

Study on impact of impurities in coal chemical waste salt on solvation of NaCl and Na2SO4

Prediction model for COD in petrochemical wastewater influent based on temporal-spatial dual-stream convolutional neural network

Related Author

No data

Related Institution

No data

⁰

溶胶-凝胶法制备PEW/SiO2杂化材料及表征

DOI：

摘要

Abstract

关键词

Keywords

references

溶胶-凝胶法制备PEW/SiO₂杂化材料及表征