| SiO_2杂化环保型酚醛树脂的研究与制备 |
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| 引用本文： | 吴江涛,齐暑华,李春华,尹必文.SiO_2杂化环保型酚醛树脂的研究与制备[J].中国胶粘剂,2011,20(10). |
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| 作者姓名： | 吴江涛 齐暑华 李春华 尹必文 |
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| 作者单位： | 西北工业大学理学院化学系,陕西西安,710129 |
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| 摘 要： | 以正硅酸乙酯(TEOS)为前驱体,成功制备了玻璃纤维增强型改性PF(酚醛树脂)基复合材料的基体树脂——环保型纳米SiO2/PF。研究结果表明:当w(TEOS)=10%时,PF/SiO2复合材料的综合性能相对最好,其拉伸强度(758 MPa)、弯曲强度(945 MPa)和冲击强度(261 kJ/m2)分别比未改性体系提高了144%、53%和30%;改性PF体系的最大失重速率温度比纯PF体系提高了40～50℃,其热分解第二阶段的活化能由134.41 kJ/mol升至240.72 kJ/mol;玻璃纤维增强型PF/SiO2复合材料的线烧蚀率和质量烧蚀率分别比纯PF体系降低了22.5%和8.4%。
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| 关 键 词： | 正硅酸乙酯 SiO2 酚醛树脂 动力学参数 耐热性 烧蚀率 |
Research and preparation of SiO_2 hybrid environment-friendly PF |
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| Wu Jiangtao,Qi Shuhua,Li Chunhua,Yin Biwen.Research and preparation of SiO_2 hybrid environment-friendly PF[J].China Adhesives,2011,20(10). |
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| Authors: | Wu Jiangtao Qi Shuhua Li Chunhua Yin Biwen |
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| Affiliation: | Wu Jiangtao,Qi Shuhua,Li Chunhua,Yin Biwen(Department of Applied Chemistry,College of Science,Northwestern Polytechnical University,Xi'an 710129,China) |
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| Abstract: | With tetraethoxysilane(TEOS) an precursor,an environment-friendly nano-SiO2 /PF(phenolic resin),which was used as matrix resin of modified PF-based composites reinforced by fiberglass,was successfully prepared.The research results showed that the PF/SiO2 composites had reversely optimal combination property because the tensile strength(758 MPa),bend strength(945 MPa) and impact strength(261 kJ/m2) of modified system were 144%,53% and 30% respectively more than those of unmodified system when mass fraction o... |
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| Keywords: | TEOS SiO2 PF kinetic parameter heat resistance ablation rate |
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