2022年日本橡胶带进出口情况.pdf

合成橡胶工业第46卷23-31.22American Association of State and Highway Transportation Off-cials.AASHTO MP 19-10 Standard specification for perfor-mance-graded asphalt binder using multiple stress creep reco-very（MSCR）testS.Washington：American Association ofState and Highway Transportation Offcials，2019：1-6.23 锁利军.橡胶粉/SBS复合改性沥青胶结料的制备与性能研究J.功能材料，2022，53（6）：6224-6229.Rheological characteristics and fatigue characteristics of microalgae oil/styrene-butadiene-styrene block copolymer composite regenerated asphaltXING Lin-lin1,CHEN Guang2,ZHAO Xin3,ZHANG Hao3,FAN Hong-ying3（1.School of Civil Engineering and Transportation Engineering,Yellow River Conservancy TechnicalInstitute,Kaifeng 475004,China;2.Kaifeng Tongda Highway Engineering Co Ltd Mechanization Branch,Kaifeng 475000,China;3.Shaanxi Provincial Transport Planning Design and Research Institute Co Ltd,Xian 710065,China）Abstract:Microalgae oil(MO)and styrene-buta-diene-styrene block copolymer(SBS)were used ascomposite regenerants to blend into aged asphalt toprepare MO/SBS composite regenerated asphalt.Thebasic physical properties,high and low temperaturerheological characteristics and fatigue characteristicsof composite recycled asphalt were compared.Theeffects of the ratio and amount of MO and SBS on theregeneration effect of aged asphalt were investigated.The results showed that the viscoelastic deformationability of pure MO recycled asphalt could recover toa certain extent to the level before aging,but therewas still a certain gap.On this basis,MO/SBS com-posite regeneration could significantly improve thehigh-temperature deformation resistance and elasticrecovery performance,and its critical temperaturewas 1.19.7 higher than that before aging.At thesame time,it also reduced the sensitivity of recycledasphalt to fatigue strain to improve fatigue resistance.However,the low-temperature creep deformation a-bility of MO/SBS composite recycled asphalt waslower than that of base asphalt.When the mass frac-tion of MO and SBS were 8%and 4%,the compositerecycled asphalt had better rheological and fatiguecharacteristics at high and low temperature.Key words:microalgae oil;styrene-butadiene-styrene block copolymer;regenerated bitumen;rheo-logical characteristics;fatigue characteristics;elasticrecovery国外动态2022年日本橡胶带进出口情况据中国橡胶网3月14日报道，2022年日本橡胶带出口额总计为458.91亿日元，同比增长13%；进口额为121.77亿日元，同比增长40%。按橡胶带出口额统计，排名前10的国家和地 区 中，除 排 名 第8的 印 度 尼 西 亚外，其他都有所增长。特别是排名第一的美国和排名第二的中国，均大幅增长。进口额方面，在前10个国家和地区中，除排名第三的印度尼西亚与上年同期持平外，其他国家均有所增加。152