菌丝秸秆生物质复合材料的开发和工艺优化

Development and Process Optimization of Mycelium Straw Biomass Composites

菌丝秸秆生物质复合材料的制备过程是至关重要的,本文主要探究玉米秸秆粒径、稻秆粒径、玉米芯添加量和石灰的含量对菌丝生长的影响,采用单因素实验法,其中每个因素重复3次。玉米秸秆稻秆3种不同粒径分别为80目以上、80目以下以及打成粉末没过筛处理的粒径,玉米芯添加量分别为0%、20%、40%、60%,石灰添加量分别为1%、2%、3%、4%、5%。研究结果表明:菌丝的生长与吃料时间没有太大的关系;玉米秸秆稻秆粒径越小.越有利于菌丝的生长,菌种韧性也会更好,玉米秸秆和稻秆的粒径为80目以上的菌丝生长速度最快,菌丝生长速度平均值分别为0.690.72cm/d,菌丝长势也较好;玉米芯的添加量越多越有利于菌丝的生长,玉米芯添加量为60%时,菌丝生长速度最快,但玉米芯添加量在20%时韧性最好,综合来说玉米芯含量为20%时最好;随着石灰添加量增加,菌丝生长速度加快,然后又呈下降趋势,最大生长速度为0.73cm/d,但是菌丝生长速度为0.68~0.73cm/d,相差不大,而菌种韧性好,从节省原料出发,在配方中加1%的石灰为最佳。

The preparation process of mycelium straw biomass composite material is very important.This paper mainly explores the effects of corn straw particle size,rice straw particle size,corn cob addition and lime content on mycelium growth.The single factor experiment method was used,and each factor was repeated 3 times.The three different particle sizes of corn straw\rice straw were more than 80 mesh,less than 80 mesh,and the particle size of the powder was not sieved.The amount of corn cob was 0%,20%,40%,and 60%,respectively.The amount of lime added was 1%,2%,3%,4%,and 5%,respectively.The results showed that there was no significant relationship between the growth of mycelium and feeding time.The smaller the particle size of corn straw,rice straw.The more conducive to the growth of mycelium,the better the toughness of the strain will be.The mycelium growth rate of corn straw and rice straw with a particle size of more than 80 mesh is the fastest,and the average mycelium growth rate is 0.69,0.72cm/d,respectively.The mycelium growth is also good;the more the amount of corncob added,the more conducive to the growth of mycelium,when the addition amount of corncob was 60%,the mycelial growth rate was the fastest,but the toughness was the best when the addition amount of corncob was 20%.With the increase of lime addition,the mycelial growth rate increased,and then showed a downward trend.The maximum growth rate was 0.73 cm/d,but the mycelial growth rate was 0.68~0.73 cm/d,and the difference was not significant.The strain has good toughness.Starting from saving raw materials,adding 1%lime in the formula is the best.