| 纳米碳酸钙/二氧化硅复合粒子的制备及其在丁苯橡胶中的应用 |
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| 引用本文： | 陈西知,陈雪梅,吴秋芳.纳米碳酸钙/二氧化硅复合粒子的制备及其在丁苯橡胶中的应用[J].无机盐工业,2012,44(4):43-45. |
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| 作者姓名： | 陈西知 陈雪梅 吴秋芳 |
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| 作者单位： | 华东理工大学化工学院，国家超细粉末工程研究中心，上海 200237 |
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| 摘 要： | 将纳米碳酸钙的制备和表面包覆工艺融为一体，以硅酸钠为无机硅源，采用溶胶沉淀法制备出具有核壳结构的纳米碳酸钙/二氧化硅复合粒子，在纳米碳酸钙的表面包覆了一层致密的二氧化硅膜。采用TEM、红外光谱（FT-IR）、TG、XRD、BET、吸油值测定等手段对复合粒子的大小、形貌、化学组成、结构及表面性质进行了分析和表征。将复合粒子填充于丁苯橡胶，能显著提高丁苯橡胶（SBR）硫化胶的拉伸性能和撕裂性能。当填充量为75份时，拉伸强度最大，为13.6 MPa。
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| 关 键 词： | 纳米碳酸钙 纳米CaCO3/SiO2 核壳结构 SBR硫化胶 |
Preparation of CaCO3/SiO2 composite nanoparticles and its application in SBR |
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| Chen Xizhi
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Chen Xuemei
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Wu Qiufang.Preparation of CaCO3/SiO2 composite nanoparticles and its application in SBR[J].Inorganic Chemicals Industry,2012,44(4):43-45. |
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| Authors: | Chen Xizhi Chen Xuemei Wu Qiufang |
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| Affiliation: | National Engineering Research Center of Ultrafine Powder，School of Chemical Engineering，East China
University of Technology，Shanghai 200237，China |
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| Abstract: | Integrating the processes of preparation of nano-sized CaCO3 and its surface-coating,CaCO3/SiO2 core-shell nanoparticles were prepared by sol-precipitation method using sodium silicate as silica source.A layer of dense silica membrane was coated on the surface of nano-sized calcium carbonate.Size,morphology,chemical composition,structure,and surface properties of the composite nanoparticles were characterized by TEM,FT-IR,TG,XRD,BET,and oil absorption measurement etc..As the CaCO3/SiO2 nanoparticles were applied in SBR vulcanizate,the tensile strength and tearing strength of SBR vulcanizate were improved remarkably.When the filling amount of the CaCO3/SiO2 nanoparticles was 75 phr,the SBR vulcanizate had the maximum tensile strength(13.6 MPa). |
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| Keywords: | nano-sized CaCO3 CaCO3/SiO2 nanoparticles core-shell structure SBR vulcanizate |
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