水泥刨花板快速固化添加剂的选择研究——氯化钙、硅酸钠等7种添加剂的添加效果

Selection of chemical additives with function of fast curing for cement particle board

通过热压法制水泥刨花板的试验 ,研究了在 3种添加量条件下 ,氯化钙、硅酸钠等 7种添加剂的添加效果。结果表明 :① 7种添加剂中添加效果最好的是氯化钙 ,其次为硅酸钠 ,但后者的成板性优于前者 ,对金属无腐蚀作用 ,作为水泥刨花板快速固化的添加剂是合适的 ;②在研究的范围内 ,添加剂用量对水泥刨花板的性能也有一定影响 ,但因种类而异 ,应当通过进一步的研究来选择硅酸钠的合适添加量 ;③后期处理方式对水泥刨花板性能的影响因添加剂的种类而异。浸水处理会使添加氯化钙的水泥刨花板性能显著提高。表 1参

The effect of 7 additives such as CaCl 2,Na 2SiO 3 and so on are studied through hot pressing cement particle board with 3 addition amount.The results showed:①The best additive is CaCl 2.The next is Na 2SiO 3 in mat forming,and has no erosive effect on metal.So it is a suitable fast curing additive for cement particle board.②Addition amount influences cement particle board properties differently according to additive kinds.A further study is needed on appropriate Na 2SiO 3 amount.③Post treatments influenced cement particle board properties differently according to additive kinds.It can improve performances of cement particle board added with CaCl 2 after it is soaked in water.