Graduate School of Biomedical Engineering, Tohoku University, Sendai 980-8579, Japan.
Acta Biomater. 2010 Aug;6(8):3187-92. doi: 10.1016/j.actbio.2010.02.047. Epub 2010 Mar 1.
Polymethylmethacrylate-based cements containing magnetite (Fe(3)O(4)) particles were prepared and their structure and properties were investigated. The Fe(3)O(4) particles were uniformly dispersed in the cement matrix and constituted a maximum of 60 wt.% of the total weight of cement. The setting time of the cement increased and the maximum temperature during the setting reaction decreased with increasing Fe(3)O(4) content. The compressive strength of cement increased with increasing Fe(3)O(4) content. Cement with 50 wt.% Fe(3)O(4) particles generated heat in alternating magnetic fields of 300 and 120 Oe at a frequency of 100 kHz.
制备了含有磁铁矿（Fe3O4）颗粒的聚甲基丙烯酸甲酯基水泥，并研究了其结构和性能。Fe3O4 颗粒均匀分散在水泥基质中，占水泥总重量的最大 60wt%。水泥的凝结时间随着 Fe3O4 含量的增加而延长，而凝固反应过程中的最高温度则降低。水泥的抗压强度随 Fe3O4 含量的增加而增加。含有 50wt%Fe3O4 颗粒的水泥在频率为 100kHz、磁场强度为 300 和 120Oe 的交变磁场中产生热量。
