教授
硕士生导师
教师拼音名称:wangzhaobo
学位:工学博士
职称:教授
学科:材料物理与化学
材料学材料加工工程材料科学与工程其他专业邮箱:
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2019-09-15 山东省优秀教师
2019-05-16 山东省优秀研究生指导教师
2020-12-10 青岛市高校教学名师
2019-09-04 青岛市教书育人楷模
2019-09-15 青岛市新时代最美劳动者
2020-11-10 山东省大学生高分子实用技术大赛“优秀指导教师”
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关键字:solvent-exfoliated graphene; reinforcement; polystyrene composites; mechanical properties
摘要:Solvent-exfoliated graphene (SEG)-reinforced polystyrene (PS) composites were prepared using a straightforward solution-casting method. SEG sheets, obtained by sonication-assisted solvent direct exfoliation from natural graphite, were well dispersed in the PS matrix as evidenced from scanning electron microscopy and transmission electron microscopy observations. Addition of 0.5wt% SEG resulted in a 6% increase in tensile strength and a 77% improvement in Young's modulus over pure PS due to the effective load transfer between SEG and PS matrix. The Young's moduli of the PS/SEG composites were obtained from both tensile experiments and calculations using the well-established Halpin-Tsai model. Results from dynamic mechanical analysis indicated that the storage modulus of the PS/SEG composites was significantly improved relative to neat PS. The glass transition temperatures of the composites were found to increase substantially upon addition of SEG, consistent with differential scanning calorimetry analysis. (c) 2017 Society of Chemical Industry
卷号:66
期号:12
是否译文:否