Study on evaluation index system of rubber materials for sealing

According to the characteristics of use and evaluation of rubber materials for sealing, the construction flow of evaluation index system was established, and the purposes and contents of evaluation were defined. Based on the principles of scientific, simple and effective, universal, qualitative and quantitative, and continuity, and considering the functions of evaluation, monitoring, guidance, and decision-making, evaluation indicators were selected while applied indicators principles was adopted, and then the evaluation index system was established in view of constitution of rubber materials, basic performance conditions, friction and wear, aging, special performance, and economy. And the combinative evaluation method of quantitative and qualitative was put forward. At last, the evaluation system was applied to evaluation of NBR and nano-Fe₃O₄ MNBR. The results indicated that the evaluation index system can reflect the use connotation of rubber materials for sealing and provide lessons for development and evaluation of other various materials.