| Formulation Optimization of CR/NBR/PVC for Environment-friendly and Easy-to-Assemble Dust Cover of Automobile Isokinetic Universal Joint with Low Temperature Resistance and Ozone Resistance |
| Received:November 12, 2018 Revised:November 12, 2018 |
| DOI：10.12136/j.issn.1000-890X.2019.05.0357 |
| Key Words: environment-friendly dust cover；automobile isokinetic universal joint；CR；NBR；PVC；low temperature resistance；formulation optimization |
| Author Name | Affiliation | E-mail | | ZHENG Shujun* | Jiangsu HOK Seal Material Co. ，Ltd， | 1294122324@q.com | | XU Yunduo | Jiangsu HOK Seal Material Co. ，Ltd， | |
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| Abstract: |
| The formulation optimization of CR/NBR/PVC automobile isokinetic universal jointenvironment-friendly dust cover for low temperature resistance，ozone resistance and easy to assemble was carried out.The optimum formulation of the compound was as follows：CR 70，NBR（mass fraction of acrylonitrile was 0.19）/PVC rubber and plastic alloy（according to subject material） 30，carbon black N550 15，carbon black N990 25，silica?8，stearic acid 1.5，plasticizer TP-95 25，internal release agent 935P 1，Antilux 654 1，antioxidant 4010NA 2，antioxidant NDBC 1，antioxidant MB 0.5，indirect zinc oxide 5，active magnesium oxide 3，sulfur/accelerator 2.8.The physical property，low temperature resistance，ozone resistance，heat aging resistance and oil resistance of the optimized formulation compound met user’s requirements of low temperature resistance and ozone resistance environment-friendly dust cover compound standard，and the production cost was lower.The dust cover prepared by the optimized formulation compound had good assembly performance. |
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