Irradiation crosslinking wearing-resistant low-torque low-smoke halogen-free flame-retardant cable sheath material for nuclear power station cable and preparation method and cable product of material
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A technology for nuclear power plant cables and flame-retardant cables, which is applied in the direction of insulated cables, cables, circuits, etc., and can solve the problems of no further development and application, and insufficient variety.
Active Publication Date: 2017-09-29
上海至正新材料有限公司
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[0005] Although domestic nuclear power plant cable materials have been partially localized, the types of cables targeted are concentrated in
Method used
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Embodiment 1
[0063] Each component name and each component parts by weight of embodiment 1 formula are as shown in table 1:
[0064] Table 1
[0065]
[0066]
[0067] Its preparation method is to combine ethylene-vinyl acetate copolymer (EVM), ethylene-octene copolymer (POE), ultra-high-weight polyethylene (UHMWPE), polyvinylidene fluoride (PVDF), compatibilizer, flame retardant , Flame Retardant Synergist, Radiation Resistance Auxiliary, Composite Antioxidant, Crosslinking Auxiliary and Lubricant are mixed, put into high-speed mixer, stir at room temperature for 3-5 minutes, mix evenly, and then add dense The mixer is used for banburying, and the lump material after banburying is mixed. The temperature of each section of the screw is: 190-180°C in the feeding section, 190-180°C in the conveying section, 180-170°C in the melting section, and 180-170°C in the head.
[0068] A performance detection test was performed on the cable material in Example 1, and the performance values a...
Embodiment 2
[0070] Each component name and each component parts by weight of embodiment 2 formula are as shown in table 2:
[0071] Table 2
[0072]
[0073] The preparation method of this embodiment is the same as that of Example 1.
[0074] The product in Example 2 is subjected to a performance detection test, and each performance value is as shown in Table 7 of the performance example.
Embodiment 3
[0076] Each component name and each component parts by weight of embodiment 3 formula are as shown in table 3:
[0077] table 3
[0078]
[0079] The preparation method of this embodiment is the same as that of Example 1.
[0080] The product in Example 3 is subjected to a performance detection test, and each performance value is as shown in Table 7 of the performance example.
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Abstract
The invention discloses an irradiation crosslinking wearing-resistant low-torque low-smoke halogen-free flame-retardant cable sheath material for a nuclear power station cable and a preparation method and a cable product of the material. The irradiation crosslinking wearing-resistant low-torque low-smoke halogen-free flame-retardant cable sheath material for the nuclear power station cable consists of the following components: an ethylene-vinyl acetate copolymer (EVM), an ethylene-octylene copolymer (POE), ultra-high molecular weight polyethylene (UHMWPE), polyvinylidene fluoride (PVDF), a compatilizer, a flame retardant, a flame retardant synergist, irradiation resistant aids, a composite antioxidant, crosslinking aids and a lubricant. After irradiation crosslinking, a wire cable product made of the cable sheath material has very good properties of oil resistance, wearing resistance, torque resistance, flame retardancy and the like, is very excellent in long-term aging resistance, excellent in irradiation resistance, meets requirements of nuclear power stations of a third generation on a service life of 60 years (90 DEG C), and can be used in harsh environments of the nuclear power stations.
Description
technical field [0001] The invention belongs to the field of low-smoke and halogen-free sheathing materials for nuclear power plants, and in particular relates to a radiation-crosslinked, wear-resistant, torque-resistant, low-smoke, halogen-free, and flame-retardant cable sheathing material for nuclear power plant cables, a preparation method thereof, and a cable product. Background technique [0002] As a clean energy, nuclear power is one of the main directions of energy development in the future society. According to the 13th Five-Year Plan for Electric Power issued by the National Energy Administration, the general principle is to "accelerate adjustment and optimization, transform and upgrade, and build a clean, low-carbon, safe and efficient modern power industry system". An important part, status is also very important. [0003] After decades of development, nuclear power technology has entered the third generation. The third generation of nuclear power puts forward h...
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