菌丝体-杨木颗粒多孔复合材料的制备及保温阻燃性能研究  

Preparation of Mycelium-poplar Particle Porous Composites with Thermal Insulation and Fire-retardant Performance

作　　者：张伟华[1] 郝旸 石碧[1,2] ZHANG Weihua;HAO Yang;SHI Bi(College of Biomass Science and Engineering,Sichuan University,Chengdu 610065,China;Key Laboratory of Leather Chemistry and Engineering of Ministry of Education,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学轻工科学与工程学院,四川成都610065 [2]四川大学皮革化学与工程教育部重点实验室,四川成都610065

出　　处：《皮革科学与工程》2024年第2期61-66,72,共7页Leather Science and Engineering

基　　金：国家自然科学基金项目(29576252)。

摘　　要：石油基高分子多孔材料的大量使用导致了严重的塑料污染(“白色污染”)。在这项工作中,采用了一种绿色可持续的合成策略,通过在杨木颗粒上接种培养真菌菌丝体,使其生长贯穿整个颗粒,最终制备出了一种菌丝体-杨木颗粒多孔复合材料。结果表明,多孔复合材料具有较低的密度(0.165 g·cm^(-3))、较高的孔隙率(82.7%)和疏水性(接触角:131.8°),并展示出优异的力学性能(压缩强度2.39 MPa;杨氏模量9.79 MPa)。另外,多孔复合材料还具有较低的导热系数(0.066 W/mK)和优异的阻燃性能(氧指数为28.4%)。这项研究工作展示了一种简捷和清洁环保的菌丝体-杨木颗粒多孔复合材料制备方法,对农林生物质高值化利用具有重要的参考价值。The extensive use of petroleum-based high-molecular-polymer porous materials has led to severe plastic pollution,commonly known as"white pollution".In this study,we developed a green and sustainable mycelium-poplar particle porous composite material by inoculating and cultivating fungal mycelium on poplar particles.After the mycelium grew through the poplar particles,the porous composite material was prepared by air-drying directly.The results indicated that the porous composite material had a low density(0.165 g·cm^(-3)),high porosity(82.7%),and hydrophobic surface(contact angle:131.8°).The composite material exhibited excellent mechanical properties(compression strength of 2.39 MPa;Young's modulus of 9.79 MPa).Additionally,the porous composite material had a low thermal conductivity(0.066 W/mK)and an outstanding limited oxygen index(28.4%).This research demonstrates a simple and eco-friendly method for the preparation of mycelium-poplar particle porous composite materials,which holds significant reference value for the high-value utilization of agricultural and forestry biomass.

关 键 词：菌丝体 杨木颗粒 复合材料 保温 阻燃 

分 类 号：TQ35[化学工程]