Please wait a minute...
 首页  期刊简介 期刊订阅 广告合作 联系我们
 
最新录用  |  当期目录  |  过刊浏览  |  热点文章  |  阅读排行
化工新型材料  2019, Vol. 47 Issue (3): 207-210    
  科学研究 本期目录 | 过刊浏览 | 高级检索 |
温度对SiO2气凝胶表面疏水官能团数量及疏水性的影响
赵海谦1,刘城昊1,韩瑞2,王忠华1*,刘立君1,刘晓燕1,高继慧2
1.东北石油大学土木建筑工程学院,大庆163318;
2.哈尔滨工业大学能源科学与工程学院,哈尔滨150001
Influence of temperature on hydrophobic functional group and hydrophobicity of silica aerogel
Zhao Haiqian1,Liu Chenghao1,Han Rui2,Wang Zhonghua1,Liu Lijun1,Liu Xiaoyan1,Gao Jihui2
1.School of Civil Engineering & Architecture,Northeast Petroleum University,Daqing 163318;
2.School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001
下载:  PDF (1702KB) 
输出:  BibTeX | EndNote (RIS)      
摘要 SiO2气凝胶颗粒多采用表面修饰甲基官能团的方法进行疏水改性。该方法存在受热后疏水官能团断裂,疏水性下降的问题。目前官能团数量及疏水性随温度及加热时间的变化规律以及官能团数量与接触角之间的关系尚不明确。采用三甲基氯硅烷对SiO2进行疏水改性。利用傅里叶红外光谱和接触角测试方法分析了疏水SiO2气凝胶表面甲基官能团数量及疏水性随温度、加热时间的变化规律,在此基础上明确了接触角与官能团数量之间的关系。结果表明:提高受热温度及加热时间均会使疏水SiO2气凝胶颗粒表面甲基官能团数量变小,进而降低静态接触角。当温度达到600℃时,甲基官能团完全消失,材料失去疏水能力。材料接触角与表面甲基官能团损失量近似呈正比关系。
服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
赵海谦
刘城昊
韩瑞
王忠华
刘立君
刘晓燕
高继慧
关键词:  SiO2气凝胶  绝热  疏水性  甲基官能团  温度    
Abstract: SiO2 aerogel particles are mostly hydrophobic modified by modifying organic functional groups on the surface.However,this method has the problem that the hydrophobic functional group breaks and the hydrophobicity decreases after heating.At present,the variation of number of functional groups and hydrophobicity with temperature and heating time is not clear,and the relationship between the number of functional groups and the contact angle has not yet been clarified.SiO2 was hydrophobic modified by trimethylchlorosilane.The change of methyl functional groups number and the hydrophobicity of aerogel with temperature and heating time was analyzed by using fourier transform infrared spectroscopy and contact angle test.Then,the relationship between the contact angle and the number of functional groups was clarified.The results showed that increasing the heating temperature and heating time can reduce the amount of methyl groups on the surface of aerogel particles,which reduced the static contact angle of material.When the temperature reached 600℃,the methyl functional groups completely disappeared and the material losed its hydrophobicity.The contact angle of material was approximately inversely proportional to the loss of surface methyl groups.
Key words:  SiO2 aerogel    thermal insulation    hydrophobicity    methyl functional group    temperature
               出版日期:  2019-03-20      发布日期:  2019-03-20      期的出版日期:  2019-03-20
基金资助: 国家自然科学基金(51606036);黑龙江省普通本科高等学校青年创新人才培养计划(UNPYSCT-2016085);黑龙江省自然科学基金(QC2014C047)
通讯作者:  王忠华(1979-),女,硕士,副教授,主要研究方向为节能技术及油田污水处理技术。   
作者简介:  赵海谦(1981-),男,博士,主要研究方向为能源利用过程污染控制及能源功能材料制备。
引用本文:    
赵海谦, 刘城昊, 韩瑞, 王忠华, 刘立君, 刘晓燕, 高继慧. 温度对SiO2气凝胶表面疏水官能团数量及疏水性的影响[J]. 化工新型材料, 2019, 47(3): 207-210.
Zhao Haiqian, Liu Chenghao, Han Rui, Wang Zhonghua, Liu Lijun, Liu Xiaoyan, Gao Jihui. Influence of temperature on hydrophobic functional group and hydrophobicity of silica aerogel. New Chemical Materials, 2019, 47(3): 207-210.
链接本文:  
http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2019/V47/I3/207
[1] Prakash S S,Brinker C J,Hurd A J.Silica aerogel films at ambient pressure[J].Journal of Non-Crystalline Solids,1995,190(3):264-275.
[2] Ge D,Yang L,Li Y,et al.Hydrophobic and thermal insulation properties of silica aerogel/epoxy composite[J].Journal of Non-Crystalline Solids,2009,355(52-54):2610-2615.
[3] Zhou X Y,Zheng F,Li H G,et al.An environment-friendly thermal insulation material from cotton stalk fibers[J].Energy & Buildings,2010,42(7):1070-1074.
[4] Lee J K,Gould G L,Rhine W.Polyurea based aerogel for a high performance thermal insulation material[J].Journal of Sol-Gel Science and Technology,2009,49(2):209-220.
[5] Rao A V,Kullarni M M.Effect of glycerol additive on physical properties of hydrophobic silica aerogels[J].Materials Chemistry & Physics,2003,77(3):819-825.
[6] Rao A V,Kullarni D P,Seth T.Surface chemical modification of silica aerogels using various alkyl-alkoxy/chloro silanes[J].Applied Surface Science,2003,206:262-270.
[7] Rao A V,Kullarni M M,Amalnerkar D P.Superhyfrophobic silica aerogels based on methyltrimethoxysilane precursor[J].Journal of Non-Crystalline Solids,2003,330:187-095.
[8] Fritz S,Glaubitt W,Schubert U.Hydrophobic aerogels from Si(Ome)4/MeSi(Ome)3 mixtures[J].Journal of Non-Crystalline Solids,1992,145:85-89.
[9] Lang E,Adolph N.Handbook of chemistry[M].Sandusky:Handbook Publishers Inc,1944.
[10] Susi H,Byler D M.Resolution-enhanced fourier transform infrared spectroscopy of enzymes[J].Methods in Enzymology,1986,130:290-311.
[11] Haberland R,Pescoller L,Gottschall S,et al.Contact angle measuring instrument,US9322760[P].2016-04-26.
[12] 舒凡,夏桓桓,周良围.等.超疏水SiO2粒子的制备和性能研究[J].化学研究与应用,2016,28(4):512-515.
[13] 杨靖,陈杰熔.甲基修饰二氧化硅气凝胶的红外光谱和热分析研究[J].西安交通大学学报,2009,43(1):114-118.
[14] Bhagat S D,Kim Y H,Ahn Y S.Room temperature synthesis of water repellent silica coatings by the dip coat technique[J].Applied Surface Science,2006,253(4):2217-2221.
[15] 陈一民,谢凯,赵大方.等.SiO2气凝胶制备及疏水改性研究[J].宇航材料工艺,2006,36(1):30-33.
[16] 徐飞,于春玲,戴洪义.常压制备疏水性二氧化硅气凝胶及表面结构表征[J].现代化工,2010,30(s2):196-198.
[1] 殷允杰, 王腾飞, 宋伟华, 赵涛, 王潮霞. UV光固化型功能溶胶改性棉织物性能研究[J]. 化工新型材料, 2019, 47(2): 211-214.
[2] 顾晓茵, 徐丽慧, 张旋宇, 张怡蓓, 寿铭洋, 宋俊, 周思敏. 基于SiO2气凝胶的超疏水功能棉织物的制备及性能研究[J]. 化工新型材料, 2019, 47(2): 260-267.
[3] 朱晓东, 雷佳浩, 王尘茜, 朱然苒, 冯威. 热处理对铁掺杂TiO2锐钛矿-金红石相变的影响[J]. 化工新型材料, 2019, 47(2): 108-111.
[4] 何双赐, 钟志成, 魏彦锋, 汪竞阳, 张旭明. 衬底温度对共溅射法制备TZO薄膜光电性能的影响[J]. 化工新型材料, 2019, 47(1): 108-111.
[5] 赵然, 高欣宝, 鲁彦玲, 杜风贞, 张力, 刘大志. 反应温度对铝镁合金粉表面硅烷膜形成及性能影响的研究[J]. 化工新型材料, 2018, 46(9): 148-152.
[6] 李子庆, 赫文秀, 张永强, 于慧颖, 李兴盛, 刘斌. 不同温度对石墨烯掺氮位点的影响及性能测试[J]. 化工新型材料, 2018, 46(8): 174-178.
[7] 覃析月, 吴敏. 软链段的分子量对紫外光固化聚氨酯丙烯酸酯膜性能的影响[J]. 化工新型材料, 2018, 46(8): 179-182.
[8] 闫全英, 刘莎. 预制轻薄相变供暖地板热工性能的研究[J]. 化工新型材料, 2018, 46(7): 240-244.
[9] 何冀川, 杨小龙, 周天明, 喻国强, 刘树信. 煅烧温度对溶胶-凝胶法合成LiNi0.8Co0.15Al0.05O2正极材料物相结构的影响[J]. 化工新型材料, 2018, 46(6): 119-122.
[10] 于在乾, 谷红娟, 唐冬雁. 温度响应型TiO2-PVCL复合材料的制备及其性能研究[J]. 化工新型材料, 2018, 46(6): 74-77.
[11] 杨国领, 高大海, 刘鹏飞, 贾梦秋. 微纳分级结构ZnO-氟碳树脂超疏水表面的制备研究[J]. 化工新型材料, 2018, 46(6): 65-69.
[12] 杨俊玲, 于振东, 冉斌荣, 杨阳. 以三羟甲基丙烷为核合成超支化聚酯及表征[J]. 化工新型材料, 2018, 46(5): 188-191.
[13] 仝瑞, 吴婷, 廖丽雯, 赵士龙. Eu3+单掺和Er3+/Yb3+共掺Ba3Lu4O9的发光性能研究[J]. 化工新型材料, 2018, 46(5): 87-90.
[14] 张胜寒, 韩晓雪. 颗粒亲水性对纳米流体表面张力的影响研究进展[J]. 化工新型材料, 2018, 46(5): 38-43.
[15] 李雅芳, 刘猛, 刘皓, 康卫民, 李晓久. 基于原位聚合法制备聚吡咯涂层针织物及其热学性能研究[J]. 化工新型材料, 2018, 46(5): 249-252.
[1] Zheng Zhen, Ding Chengli, Li Huiping, Fu Jingjing. Synthesis and property of hydrophobic functionalized cotton linter cellulose/SiO2 composite aerogel[J]. New Chemical Materials, 2018, 46(4): 230 -233 .
[2] Chang Lin, Zhao Yuntao, Bi Yinping, Ren Yiwei. Preparation and characterization of sodium polystyrene sulfonate grafted polysulfone forward osmosis membrane[J]. New Chemical Materials, 2018, 46(7): 114 -117 .
[3] Cai Tingting, Liu Rongwei, Wang Yuanyuan, Zhai Yongxing, Duan Ze, Zhang Jian. Preparation and electrochemical performance test of nickel cobalt sulfide/carbon microsphere electrode[J]. New Chemical Materials, 2018, 46(8): 119 -122 .
[4] Li Yonggang, Feng Pan, Yu Xiaohua, Yu Shuanglin, Xu Yafei, He Xiaocai, Xie Gang. Electrochemical property of graphene with different reducing agent[J]. New Chemical Materials, 2019, 47(1): 92 -95 .
[5] Li Yongjian, Dai Haipo, Li Jiwei, Feng Nana, Zhai Hui, Li Wei. Research progress of several transition metal oxides nanomaterials in non-enzymatic glucose sensor[J]. New Chemical Materials, 2019, 47(2): 1 -5 .
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
京ICP备09035943号-38
版权所有 © 《化工新型材料》编辑部
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn