摘要
提出了用组合模型y（P）=f_1（t）十f_2（t）描述硫化过程转矩P的变化。式中f_1（t）和f_2（t）分别表示硫化反应和老化反应对P变化的贡献部分。模型参数的确定采用Tobolsky提出的Proccdure X方法。在孟山都流变仪上测定了天然橡胶在180,170,160,150,140℃时的硫化曲线。得到:y（p）=1-（P-P_0）/（P-P_0）;f_1（t）=Aexp[-K_1（t-t_0）];f_2（t）=B+K_2（t一t_0）。用此模型计算P变化的理论值与试验值吻合良好。
A combination model was proposed to describe the rotative moment (P) change of vulcanization process:where f1 (t) and f2(t) were the contribution parts made by vulcanization reaction and aging reaction respectively. Model parameters were estimated by Procedure X method suggested by Tobolsky. The vulcanization curves of natural rubber were determined by Monsanto rheometer at 180, 170,160, 150 and 140C respectively. Functional relations were obtained: y(P) = 1- (P- P0) / (Px-P0'), f1(t)=Aexp[-K1(t -t0)],f2(t) = B + K2(t-t0). The changs of P value calculated by obtained model were in good agreement with the experimental values.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1995年第1期29-31,共3页
China Synthetic Rubber Industry
关键词
橡胶
硫化曲线
数学模型
混炼
rubber vulcanization
vulcanization cure
mathematical model
reversion characteristic
