本文分别选用不同的成孔剂制成粒径约600 μm的成孔模板,以SiO2陶瓷粉为球壳包覆材料制备SiO2空心陶瓷球,研究了不同成孔剂对SiO2空心陶瓷球成球性能的影响.结果表明,以PS和淀粉为成孔模板时烧结后的空心球出现明显的破裂现象,以酚醛树脂和尿素为成孔模板制备出的SiO2空心球成球性能最好.XRD分析表明烧结后的空心球物相为石英相.热重分析表明,以尿素为成孔模板更能形成空心结构,对制备SiO2空心陶瓷球更为合适.尿素-SiO2球在377℃下热分解排胶50 h后单粒抗压值较为稳定,平均耐压强度为54.3 N,球壳中孔隙含量较少.
参考文献
| [1] | 张帆;单丹;胡芝娟;刘家臣.空心玻璃微珠种类及加入量对无机非金属固体浮力材料性能的影响[J].硅酸盐通报,2015(9):2714-2719. |
| [2] | 娄鸿飞;王建江;胡文斌;程勇.空心微珠的制备及其电磁性能的研究进展[J].硅酸盐通报,2010(5):1103-1108. |
| [3] | Wang, Haiyang;Wang, Fu;Liao, Qilong;Li, Xibo.Synthesis of millimeter-scale Al2O3 ceramic hollow spheres by an improved emulsion microencapsulation method[J].CERAMICS INTERNATIONAL,20153 Pt.B(3 Pt.B):4959-4965. |
| [4] | 曾燕;桑元华;廖其龙;刘宏.采用模板法制备毫米级半透明Al2O3空心球[J].硅酸盐学报,2013(12):1644-1649. |
| [5] | 刘欣;顾幸勇;李家科;范学运.钛酸铝-莫来石-镁铝尖晶石质空心球的研制[J].耐火材料,2009(2):127-130. |
| [6] | Jian Ping CHEN;Kimio ISA.Thermal decomposition of urea and urea derivatives by simultaneous TG/(DTA)/MS[J].質量分析,19984(4):299-303. |
| [7] | Igor V.Tokmakov;Saman Alavi;Donald L.Thompson.Urea and Urea Nitrate Decomposition Pathways:A Quantum Chemistry Study[J].The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory,20068(8):2759-2770. |
| [8] | Nan Xu;Jinhui Dai;Zhibin Zhu.Synthesis and characterization of hollow glass-ceramics microspheres[J].CERAMICS INTERNATIONAL,20117(7):2663-2667. |
| [9] | Tryana V. Garza-Cruz;Masami Nakagawa.On a hybrid method to characterize the mechanical behavior of thin hollow glass microspheres[J].Granular matter,20123(3):309-318. |
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