期刊论文

Wu, Y.

中文

建筑材料学报

1007-9629

2018

21

3

394-401

10.3969/j.issn.1007-9629.2018.03.008

林业专利产业化引导项目（林业专利2016-11） “十二五”国家科技支撑计划项目（2012BAD24B03） 国家林业公益性行业科研重大专项（201204704） 湖南省科技人才计划项目（2016TP1013） 湖南省科技创新平台项目（2016RS2010）

本校为第一且通讯机构

以镁系胶凝材料为基料,双氧水为发泡剂,二氧化锰为激发剂,硬脂酸钙为稳泡剂,聚丙烯酰胺为增稠剂,通过化学发泡法制备内部含有大量密闭气孔的镁系无机发泡材料.探讨了稳泡剂和增稠剂对镁系无机发泡材料表观密度、压缩强度、弯曲强度及孔结构的影响规律,采用X射线衍射法(XRD)对发泡材料改性前后的结晶相进行表征.结果表明:稳泡剂和增稠剂不仅影响镁系无机发泡材料的孔结构和发泡成型,对晶相结构也有较大影响;当稳泡剂硬脂酸钙添加量为7‰(质量分数,下同),增稠剂聚丙烯酰胺添加量为1.4‰时,所得镁系无机发泡材料的压缩强度和弯曲强度达到最大值,平均孔径较小,孔隙率和圆度值接近开普勒球体填充模型...

Magnesium inorganic foaming materials containing a large number of closed pores inside were prepared by chemical foaming process, using magnesium based cementing material as base material, hydrogen peroxide as foaming agent, manganese dioxide as activator, calcium stearate as foam stabilizer and polyacrylamide as thickener. The effects of foam stabilizer and thickener on the apparent density, compression strength, flexural strength and pore structure of magnesium inorganic foaming materials were investigated. The crystalline phase of modified f...