| Development of Cable Jacket in Oil Tanker |
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| DOI： |
| Key Words: calbe jacket；ACM；CPE |
| Author Name | Affiliation | | Li Yuhua | No.710 Research Institute，China's Boats and Ships General Corp. | | Zhuge Haiou | Shenzhen Jinggong Cable Corp. |
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| Abstract: |
| A cable jacket in oil tanker has been developed to meet the requirements for the performance in service and the performance/price ratio of materials. The ACM/CPE [（70—80）/（20—30) ] blend isused as the basic polymer of the jacket compound；2，5-dimethyl-2，5-di（-tert-butyl peroxy）hexane（3.0—3.6phr）isused as the curative；the neutral，oil and chemical-resistant inorganic fillers with good reinforcement，such as superfine talc powder，calcined clay etc.（70—85phr），are used as reinforcing filler；the aluminum hydroxide/magnesium hydro xide blend [（50—60）/（30—40）]，as well as the adeguate quantity of antimony trioxide and molybdenum trioxide are used as flame retardant；the dispersing agent Z-210（4—5phr），synthetic ester plasticizer WB350 and micro-crystalline wax are used as processing aid. Two-pass reverse mixing is applied. The first pass mixing is carried out in internal mixer at the temperature of 60—70℃；the second pass mixing on mill at the temperature of 40—45℃. The parameters of the extruder are as follows: a. tempera ture: screw 45- 50℃ , barrel 55—60℃，head 85—95℃，mould 125—135℃；b. screw L/D ratio：（18—20） 11；c. screw flight：two starts，equal width and unequal depth. It is better to cure the product with salt bath. The performance of the finished product is in accordance with the requirements of China's national standards GB9331—90，GB12666—90 and IEC 502（1994）. |
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