| Application of regression analysis to rubber formulation experiment |
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| DOI： |
| Key Words: regression analysis；uniform design；rubber formula；SBR；filler |
| Author Name | Affiliation | | YAO Zhong-yao | South China University of Technology | | LIN Hui-yin | South China University of Technology | | LIANG Shi-hui | South China University of Technology |
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| Abstract: |
| The effects of four fillers，such as rubber crumb，silica，carbon black and brown resin powder on the properties of SBR compound，such as density，hardness，bending flexure，wear resistance and so on were investigated by designing the rubber formula with the uniform design method .The optimized regression equations describing the relationship between the properties of rubber compound and the variables of fillers quantitively were obtained by fitting the experimental data with the regression analysis，and the equations were used to predict and optimize the rubber formula.The results of confirmation test showed that the optimized formula featured lower density，higher hardness and other acceptable properties .The whole process of applying the regression analysis to the rubber formulation experiment was revealed with focus on some unnegligible issues:total number of experiments，regression model，notability test of regression equation and regression coefficient，remained standard deviation，and optimization and confirmation test of regression equation. |
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