刨花形态对快速固化水泥刨花板性能的效应

Effects of wood shaving shapes on the properties of quick-curing cement particle board

通过热压法制水泥刨花板的试验,研究了6种不同形态的刨花对快速固化水泥刨花板性能的影响。研究的固定工艺条件为:灰木比2 6,水灰比0 6,Na2SiO3为水泥质量的10%,板的设计密度为1250kg·m-3,热压温度90℃,热压时间15min,压力3 0MPa。结果表明:①6种形态的刨花中以E型薄片刨花为最好。②用热压法快速固化制水泥刨花板时,较佳的刨花尺寸为:20～40mm×2～4mm×0 2～0 4mm。

The effects of 6 different wood shaving shapes on the properties of fastcuring cement particle board(CPB)are studied with the method of hot pressing.The constant technical conditions for the study are as follows:cementwood ratio is 26;watercement ratio is 06;the content of Na2SiO3 is 10% of cement weight;the designed density of the board is 1 250 kg·m-3;hot pressing temperature is 90 ℃ for 15 min;pressure is 30 MPa.The results are as follows:(1)Eshaped shaving is the best of the six shavings.(2)When the CPB is cured fast with the hot pressing method,the optimum size of shaving is(20～40)mm×(2～4)mm×(02～04)mm.