Irradiation crosslinking slurry-resistant halogen-free flame-retardant cable material used for petroleum platform and preparation method thereof
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A flame-retardant cable material and oil platform technology, applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of large equipment investment, large smoke generation, unfavorable promotion and application, etc., to improve mechanical properties, Effect of improving compatibility and maintaining heat resistance
Active Publication Date: 2015-09-23
中广核三角洲(江苏)塑化有限公司
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[0006] Among the published mud-resistant cable material patents, the patent with application number 201310013029.9 discloses a power cable material for oil platforms and its preparation method, which uses hydrogenated nitrile as the matrix resin, and is wear-resistant, tear-resistant, oil-resistant, ozone-resistant, and oil-resistant. Mud, high flame retardancy and other properties, and meet the requirements of the Norwegian standard NEK606 for mud resistance, but it has the problems of high cost and large amount of smoke when burning, which is not conducive to popularization and application
[0007] The patent with the application number 201110359891.6 discloses a cable sheath mate
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Embodiment 1
[0067] Example 1: A radiation cross-linked mud-resistant halogen-free flame-retardant cable material for oil platforms, material formula:
[0068]
[0069] 2. Preparation process
[0070] The first step: Mix the ethylene vinyl acetate copolymer EVA, ethylene-vinyl acetate-carbon monoxide terpolymer, polyethylene and polyethylene grafted maleic anhydride copolymer in a high-speed mixer for 30 seconds at high speed according to the formula weight Then, it is mixed and plasticized by a twin-screw granulator. The processing temperature is: 120-130°C in the conveying section, 140-155°C in the melting section, 160-170°C in the mixing section, and 155-165°C in the exhaust section. The heating section is 155-165°C, and the head is 160-170°C.
[0071] The second step: Add the above materials into carbon black, aluminum hydroxide flame retardant, magnesium hydroxide flame retardant, silane coupling agent, cross-linking sensitizer trimethallyl isocyanate TMAIC prepolymerized by formu...
Embodiment 2
[0075] Example 2: A radiation-crosslinked, mud-resistant, low-smoke, halogen-free, flame-retardant cable material for oil platforms, material formula:
[0076]
[0077] 2. Preparation process
[0078] Same as embodiment one.
[0079] 3. Technical indicators
[0080]
Embodiment 3
[0081] Example 3: A radiation-crosslinked mud-resistant low-smoke halogen-free flame-retardant cable material for oil platforms, material formula:
[0082]
[0083] 2. Preparation process
[0084] Same as embodiment one.
[0085] 3. Technical indicators
[0086]
[0087] As can be seen from the above examples, the present invention enables more sufficient, uniform and effective cross-linking reactions to occur in the material by adding ethylene-vinyl acetate-carbon monoxide terpolymer and high-efficiency cross-linking sensitizer TMAIC prepolymer , so it has higher oil resistance and mud resistance; the products made of this cable sheathing material can meet the requirements of the Norwegian NEK606 standard for halogen-free / mud-proof cables for offshore platforms.
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Abstract
The invention provides an irradiation crosslinking slurry-resistant halogen-free flame-retardant cable material used for a petroleum platform and a preparation method thereof. The material is composed of the following raw materials by weight: 25 to 55 parts of ethylene vinyl acetate copolymer, 10 to 20 parts of ethylene-vinyl acetate-carbon monoxide terpolymer, 25 to 45 parts of polyethylene, 5 to 15 parts of copolymer polyethylene grafted maleic anhydride, 8 to 10 parts of carbon black, 120 to 160 parts of a halogen-free flame retardant, 0.7 to 1.8 parts of a coupling agent, 1.5 to 3 parts of a crosslinking sensitizer, 1.4 to 2.4 parts of an antioxidant, 2 to 4 parts of silicone and 0.5 to 1.2 parts of a lubricant, wherein the ethylene vinyl acetate copolymer has a vinyl acetate VA content of 33% and a melt index of 0.2 g/10min. According to the invention, the irradiation crosslinking slurry-resistant halogen-free flame-retardant cable material with low smoke, no toxicity, simple and convenient custom irradiation processing and low investment cost used for a petroleum platform and a preparation method thereof are provided; meanwhile, a halogen-free flame-retardant slurry-resistant sheathing material which meets the standards of halogen-free/anti-slurry cables used for a Norway NEK606 offshore platform can be produced.
Description
technical field [0001] The invention relates to the field of low-smoke, halogen-free, flame-retardant cable materials, in particular to a radiation-crosslinked, mud-resistant, halogen-free, flame-retardant cable material for oil platforms and a preparation method thereof. Background technique [0002] my country is rich in offshore oil resources. The proven geological reserves of oil in the South China Sea are 23 billion tons. It is called China's Persian Gulf. However, the sea area in this area is relatively deep, and the core technology of deep-water platform manufacturing is monopolized by foreign countries, which seriously restricts my country's South China Sea. Petroleum development and utilization. With the official drilling of Offshore Oil 981, China's first self-designed and built "sixth-generation deepwater semi-submersible drilling platform" in 2012, it marks a substantial step forward in the deepwater strategy of China's offshore oil industry. The technology of de...
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