回归分析法研究硫化体系对氟橡胶性能的影响

Study on the influence of vulcanization system on the properties of fluororubber through regression analysis

使用多因素分析法设计实验,研究BPP和双酚AF的用量对氟橡胶(FKM)的硫化特性和基本性能的影响。结果表明,在实验设定范围内,增加双酚和BPP用量,FKM的交联程度增大,胶料的拉伸强度、100%定伸应力增大,而拉断伸长率降低。随着双酚用量增加,焦烧时间逐渐增长,胶料的拉伸强度也随之增大,当双酚用量大于2份时,增幅明显降低;随着BPP用量的增加,焦烧时间逐渐降低,橡胶的拉伸强度呈现先增加后降低的趋势。根据回归分析法设计的数学模型可以准确预测FKM各项性能随BPP和双酚用量变化的趋势。

This article uses multiple factor analysis to design experiments and st udy the effect of the dosage of BPP and bisphenol AF on the vulcanization characteristics and basic properties of fluororubber(FKM).The results showed that within the experimental setting range,increasing the dosage of bisphenol and BPP resulted in an increase in the crosslinking degree of FKM,an increase in the tensile strength and 100%elongation stress of the rubber material,while a decrease in the elongation at break.As the dosage of bisphenol increases,the scorching time gradually increases,and the tensile strength of the rubber material also increases accordingly;When the dosage of bisphenol exceeds 2 parts,the increase rate significantly decreases;With the increase of BPP dosage,the scorching time gradually decreases,and the tensile strength of rubber shows a trend of first increasing and then decreasing.The mathematical model designed based on regression analysis can accurately predict the trend of FKM performance with changes in BPP and bisphenol dosage.