玉米秸秆焦油制备生物沥青的性能研究  

Study on the Performance of Bioasphalt Prepared from Corn Stalk Tar

作　　者：齐华春[1] 许微 张世晓 李冰[1] 庞久寅[1] QI Hua-chun;XU Wei;ZHANG Shi-xiao;LI Bing;PANG Jiu-yin(Wood Material Science and Engineering Key Laboratory of Jilin Province,Beihua University,Jilin 132013,Jilin,P.R.China)

机构地区：[1]北华大学木质材料科学与工程重点实验室,吉林省吉林市132013

出　　处：《林产工业》2024年第5期1-5,共5页China Forest Products Industry

基　　金：吉林省科学技术厅项目(20200402101NC)。

摘　　要：随着大规模高等级公路建设和养护维修工程的不断推进,沥青材料的需求量逐渐攀升。随着化石资源的消耗,寻找一种能够替代石油沥青的材料已成为道路工程领域的迫切需求。本文以玉米秸秆焦油为原料,对其进行树脂化处理,制备生物沥青。基于BOX-Behnken响应面分析,以树脂得率为评价指标,确定了树脂合成的最佳工艺条件为:酚醛摩尔比为0.8,反应时间为125 min,秸秆焦油添加量为10%。结果表明:随着树脂化产物的增加,生物沥青的针入度也随之增大,且均高于70#石油沥青。B-PF生物沥青延度随掺量增加呈先升高后降低趋势;但H-PF生物沥青延度随掺量的增大而减小。提高生物沥青掺量可使软化点降低。H-PF生物沥青在10%掺量下延度及软化点低于70#石油沥青,而掺量达到20%时,所制备的生物沥青的软化点和延度皆低于70#石油沥青。With the continuous advancement of large-scale high-grade highway construction and maintenance and repair projects,the demand for asphalt materials has been gradually increasing.As fossil materials are consumed,finding an alternative to petroleum asphalt materials has become an urgent need in the field of road engineering.This paper used corn stover tar as raw material and conducted resin treatment to prepare biobitumen.Based on the analysis of BOX-Behnken response surface,the resin yield was used as the evaluation index,the optimal process conditions for resin synthesis were as follows:phenolic molar ratio was 0.8,reaction time was 125 min,and straw tar addition was 10%.The results showed that with the increase of resinized products,the penetration degree of bio-bitumen also increased,which was higher than that of 70#petroleum asphalt.The ductility of B-PF bio-bitumen first increased and then decreased with the increasing of the content.However,the ductility of H-PF bio-bitumen decreased with the increasing of the dosage.Increasing the amount of bio-bitumen could reduce the softening point.The elongation and softening point of H-PF bio-bitumen were lower than 70#petroleum bitumen at 10%content,while the softening point and elongation of the bio-bitumen prepared at 20%content were lower than 70#petroleum bitumen.

关 键 词：玉米秸秆焦油 改性树脂 生物沥青 石油沥青 沥青路面 

分 类 号：TS653[轻工技术与工程] TS396