摘要
根据油舶舰艇电线电缆的使用要求和原材料的性能价格比，其护套胶料的弹性体选用聚丙烯酸酯橡胶／氯化聚乙烯并用［（７０—８０）／（２０—３０）］；硫化剂选用２，５－二甲基－２，５－二（叔丁基过氧化）己烷（３．０—３．６份）；补强填充剂选用中性、耐油、耐化学药品及补强性能优良的超细滑石粉、煅烧陶土等无机填料（７０—８５份）；阻燃剂为氢氧化铝／氢氧化镁并用［（５０—６０）／（３０—４０）］，还可加入适量的三氧化二锑和三氧化钼；加工助剂有分散助剂Ｚ－２１０（４—５份）、合成酯类增塑剂ＷＢ３５０、微晶石蜡。胶料混炼采用逆混混炼工艺，分密炼（６０—７０℃）和开炼（辊温４０—４５℃）。挤出机参数为：温度：螺杆４５—５０℃，机筒５５—６０℃，机头８５—９５℃，模具１２５—１３５℃；螺杆长径比为（１８—２０）∶１，螺纹为双头等宽不等深式，硫化最好用盐浴。电缆成品性能满足ＧＢ９３３１—９０。
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 is used as the basic polymer of the jacket compound;2,5 dimethyl 2,5 di( tert butyl peroxy)hexane(3.0-3.6phr)is used 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 hydroxide 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. temperature: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).
出处
《橡胶工业》
CAS
北大核心
1997年第1期21-23,共3页
China Rubber Industry
