JOURNAL ARTICLE

纳米SiO 2 -端羧基丁腈橡胶改性水性环氧树脂复合材料的制备及性能

周浩然毛珊珊

Year: 2018 Journal:   复合材料学报 Vol: 35 (6)Pages: 1395-1401

Abstract

以端羧基丁腈橡胶(CTBN)和纳米SiO2(nano SiO2)为增韧剂,先利用相反转法将CTBN与环氧树脂(EP)的共聚物制备成乳液,然后加入nano SiO2进行共混,最后加入固化剂经梯度升温固化制得nano SiO2-CTBN改性的水性环氧树脂(nano SiO2-CTBN/WEP)复合材料。通过FTIR、SEM、TEM、万能拉伸试验仪和TG对nano SiO2-CTBN/WEP复合材料的性能进行表征。结果表明:当CTBN含量为20%(与EP E-51的质量比)时,所制备的CTBN/WEP具有较好的储存稳定性,在此基础上加入nano SiO2,当其含量为3%时增韧效果最好,nano SiO2-CTBN/WEP的拉伸强度达14.5 MPa,断裂伸长率达9.1%,冲击强度为11.3 kJ/m2,弯曲强度达22.4 MPa,较未添加nano SiO2的CTBN/WEP分别提高了40.1%、27.4%、73.9%和72.7%,其初始热分解温度也提高了近25℃。

Keywords:
Computer science

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Topics

biodegradable polymer synthesis and properties
Physical Sciences →  Materials Science →  Biomaterials
Polymer composites and self-healing
Physical Sciences →  Materials Science →  Polymers and Plastics
Synthesis and properties of polymers
Physical Sciences →  Materials Science →  Polymers and Plastics

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