硫化天然橡胶物理松弛运动方程的探讨  

INVEST IGATON ON PHYSICAL RELAXATION MOTION EQUATION OF VULCANIZED NATURAL RUBBER

作　　者：裘怿明[1] 刘从伟[1] 时锋[1] 

机构地区：[1]青岛化工学院橡胶工程学院

出　　处：《合成橡胶工业》1996年第6期364-366,共3页China Synthetic Rubber Industry

摘　　要：采用起始应力与平衡应力差值的ｅ￣（－１）倍所对应的时间为硫化天然橡胶的平均松弛时间（τ＿０），适当选取各运动单元的松弛时间．建立了５参数数学模型松弛谱的强度（Ａ＿ｉ）通过多无线性回归法确定。结果表明，回归值与实验值吻合良好，在１３～７１℃，均方根偏差小于１．５０％。The average relaxation time of vulcanized natural rubber(τo) was defined by the initial stress minus minus equilibrium stress multiplied by e-1 The model with five parameters was estabilished after the relaxation time of movement unit was choiced properlyThe intensity of relaxation spectrum(Ai) was determined by multiparameter linear regression. The results showed a good agreement between the calculated data and the experimental curves.The mean square root deviation was less than 1. 50% at l3～71℃.

关 键 词：天然橡胶 应力松驰 松驰时间谱 硫化胶 

分 类 号：TQ330.17[化学工程—橡胶工业] TQ332