将木质纤维加入矿物聚合材料中,提高矿物聚合材料的韧性.对木质纤维的加入方式进行探讨,分别用粉煤灰、偏高岭土对木质纤维进行预处理,将未预处理及预处理的木质纤维按不同的量加入到矿物聚合材料中,研究木质纤维对粉煤灰-偏高岭土基聚合材料的增韧效果.结果表明:将木质纤维与碱激发剂混合后加入合成矿物聚合材料的方式对增韧效果最好;预处理后的木质纤维被粉煤灰、偏高岭土紧密包裹和支护;未预处理的木质纤维和预处理的木质纤维在加入量为0.5%时,发挥增韧的作用最佳,其中以粉煤灰预处理的木质纤维增韧作用最大;随着未预处理和预处理的木质纤维加入量的增加,矿物聚合材料的韧性减小.
Toughness of mineral polymeric material can be improved by the mixture of cellulose fiber. The way of adding cellulose fiber was discussed by using fly ash and metakaolin for pretreatment to cellulose fiber. Cellulose fiber before and after pretreatment were added to mineral aggregate materials at different quantities to investigate the toughness effect of cellulose fiber on fly ash-metakaol in mineral polymeric materials. The results show that the toughness of synthetic mineral aggregate materials after mixing wood fiber and alkali excitation agent can achieve the best effect; Cellulose fiber after pretreatment is closely surrounded and supported by fly ash and metakaolin; the effect of toughness is best when the addition amount cellulose fibers with and without pretreatment is 0.5 % with the pretreated cellulose fiber of fly ash being the optimum; toughness of mineral polymer material decreased with the increasing of the amount of wood fiber with pretreatment and without pretreatment,.