综述了近年来聚合物改性水泥基材料(polymer modified cement based materials,PMCBM)改性机理方面的国内外研究进展.从理论角度对PMCBC进行了归纳与总结,重点从4个方面探讨了聚合物改性水泥基材料的改性机理:聚合物对水泥水化过程的影响存在物理作用和化学作用;聚合物对微观结构的主要影响是乳胶粒子的分散和聚合物薄膜的形成;从孔洞结构看,聚合物改变了水泥基材料的孔径分布、特征孔径、平均孔径、最可几孔径、孔隙率等,提高了材料的内聚强度;从聚合物自身结构来看,聚合物的链结构和聚集态结构直接影响水泥基材料的性能.
The mechanism of polymer modified cement based materials was reviewed in recent years at home and abroad, from the angle of theory, the mechanism of polymer modified cement based materials has carried on the induction and summary,the modified mechanism of the polymer modified cement base material was discussed mainly from four aspects, the influence of polymer to cement hydration process include physics and chemistry function;The effect of polymer on the microstructure was made from latex particle dispersion and the formation of polymer film.From the pore structure, polymer changed the pore size distribution, the characteristics of the pore diameter and average pore diameter and most probable aperture, porosity of cement based materials, and so on, and improves the cohesive strength.In terms of the structure of the polymer itself,the chain structure and state of aggregation structure of polymer directly affects the performance of cement based materials.
参考文献
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%