间歇搅拌工艺对鞘氨醇单胞菌废胎面胶粉脱硫的影响  

Influence of intermittent stirring process on desulfurization of ground tire rubber with Sphingomonas sp

作　　者：李超[1] 赵素合[1,2] 胡明翰 王炳武[3] 

机构地区：[1]北京化工大学材料科学与工程学院北京市先进弹性体工程技术研究中心,北京100029 [2]北京化工大学材料科学与工程学院北京市新型高分子材料制备与加工重点实验室,北京100029 [3]北京化工大学生命科学与技术学院,北京100029

出　　处：《合成橡胶工业》2016年第2期134-139,共6页China Synthetic Rubber Industry

基　　金：北京市自然科学基金资助项目(8122032)

摘　　要：采用间歇搅拌工艺研究鞘氨醇单胞菌(PL 1)与废胎面胶粉(GTR)共培养脱硫,考察了PL 1对GTR的脱硫效果及脱硫胶粉(DGTR)填充丁苯橡胶的力学性能。结果表明,在GTR脱硫温度为30℃、在PL 1菌液中培养10 d的条件下,与连续搅拌工艺相比,采用间歇搅拌工艺,PL 1生长旺盛,其在DGTR胶片表面的附着量大;采用搅拌12 h、停歇12 h的间歇搅拌工艺,DGTR表面含硫质量分数比GTR下降了22.7%,脱硫效果显著;与GTR相比,用DGTR填充丁苯橡胶的力学性能显著改善。Co-culture desulfurization of Sphingomonas sp（ PL 1） and ground tire rubber（ GTR） was conducted by using intermittent stirring process. The desulfurization effects of PL 1 to GTR and the mechanical properties of styrene-butadiene rubber（ SBR） filled with devulcanized GTR（ DGTR） were investigated. The results showed that the intermittent stirring process made the PL 1 grew vigorously,which cultured at 30 ℃ for 10 d,and the attachment amount on the rubber sheet was larger than that of continuous stirring process. The mass fraction of sulfur on DGTR sheet surface fell by 22. 7% compared with GTR when intermittent stirring process（ the method of stirring 12 h and then stopping 12 h） was used,and the desulfurization effect was evidently. Compared with the GTR filled SBR,the mechanical properties of DGTR filled SBR improved significantly.

关 键 词：鞘氨醇单胞菌 废胎面胶粉 间歇搅拌工艺 共培养脱硫 硫含量 填充胶 力学性能 

分 类 号：TQ335[化学工程—橡胶工业]