15.00f Sample Name:LJL1 7.5 5.00 20.00 40.00 60.00 50.00 100.00 120.00 Fig.1 1'sample /s result of X-ray diffraction 10.00 Serrple Name:ILJ2 N 5.00 P- 5.0020.00 40.00 60.00 80.00 100.00 120.00 Fig.22.sample/s result of X-ray diffraction There were only S and C atoms in cured rubber.The atomic radiuses of Cu and S were 0,120nm and 0,185nm,the sum of them was 0.305nm.This stated that 0,305 9nm reflected the atomic distance between Cu and S under the action of van der walls force. The another atomic distance 0.2169nm reflected the interaction between Cu and C.Cu and C was impossible to attract each other by physical intera- ction.The atomic radiuses of Cu and S were 0.128nm and 0.180nm respectively. The sum of them was 0.30 8nm,which was much larger than 0.216 9nm.This stated that strong chemical bond was formed between Cu and C. 152。 。 工飞 ，〕 ‘ 三 犷 叨尺 口的匆闰 俩 畏“ 曰 川 囚灼 。 次 。 。 。 。 ， 一 昌 尽几 户 工 二 已 三 ﹄ 尔 山的出 姆 巴 七 次 吕 多 下抓 月 。 。 。 。 。 ， 一 习 。 。 。 。 。 。 。 往 了 。 。 。 ， 五 。