Positron study of carbon black parameters: Structure and Surface Area

摘要：

Carbon black (CB) is essentially carbon in the form of extremely fine particle aggregates (100-200nm) having an amorphous molecular structure. Oil absorption or compressed dibutyl phthalate (CDBP) and iodine adsorption or nitrogen surface area (N2SA) are parameters commonly used to describe CB morphology or structure and the surface area of CB available for reaction with rubber. We have used both positron lifetime and Doppler broadening spectroscopy to study these two parameters for a variety of rubber CB composite samples. The o-Ps pickoff lifetime depends only on the type of rubber and is independent of CDBP and N2SA. However, the o-Ps lifetime intensity, I3, and the S parameter decrease with both CDBP and N2SA.

关键词： Carbon black Positron lifetime N2SA CDBP

作者: J.Wang V.O.Jobando C.A.Quarles

作者单位: Department of Physics and Astronomy,Texas Christian University,TCU Box 298840,Fort Worth TX 76129 US Department of Physics and Astronomy,Texas Christian University,TCU Box 298840,Fort Worth TX 76129 US

会议类型: 国际会议

会议名称: 第九届国际正电子与正电子素国际会议(9th International Workshop on Positron and Positronium Chemistry)(PPC–9)

会议地点: 武汉

会议语种:英文

页码: 186-188

在线出版日期: 2008-05-11（万方平台首次上网日期，不代表论文的发表时间）