Zero-halogen low-smoke flame-retardant sheath material used for photovoltaic cable and production method and application thereof
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A photovoltaic cable, low-smoke and flame-retardant technology, applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of poor comprehensive performance, achieve excellent performance such as oil resistance, improve electrical and mechanical properties, and enhance interaction effect
Inactive Publication Date: 2019-07-02
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a halogen-free low-smoke flame-retardant sheathing material for photovoltaic cables, which overcomes the UV resistance, flame retardancy, aging resistance, and Ozone, ultraviolet radiation resistance, oil resistance, acid and alkali resistance, wear resistance and other poor performance or poor comprehensive performance and other shortcomings
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Embodiment 2
[0077] In Example 2, the working temperature of each zone of the twin-screw extruder is: 100°C in the first zone, 110°C in the second zone, 120°C in the third zone, 125°C in the fourth zone, 130°C in the fifth zone, and 140°C in the sixth zone. ℃, 150℃ in the seventh zone, 160℃ in the eighth zone;
[0078] The working temperature of each zone of the single-screw extruder is: the first zone is 120°C, the second zone is 130°C, the third zone is 140°C, and the fourth zone is 150°C;
[0079] The working temperature of each zone of the extruder is: the first zone is 120°C, the second zone is 130°C, the third zone is 135°C, the fourth zone is 145°C, the fifth zone is 150°C, and the sixth zone is 160°C.
Embodiment 3
[0080] In Example 3, the working temperature of each zone of the twin-screw extruder is: 105°C in the first zone, 115°C in the second zone, 123°C in the third zone, 127°C in the fourth zone, 132°C in the fifth zone, and 143°C in the sixth zone. ℃, 152℃ in the seventh zone, 162℃ in the eighth zone;
[0081] The working temperature of each zone of the single-screw extruder is: the first zone is 125°C, the second zone is 135°C, the third zone is 145°C, and the fourth zone is 153°C;
[0082] The working temperature of each zone of the extruder is: the first zone is 125°C, the second zone is 133°C, the third zone is 136°C, the fourth zone is 146°C, the fifth zone is 153°C, and the sixth zone is 163°C.
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Abstract
The invention discloses a zero-halogen low-smoke flame-retardant sheath material used for a photovoltaic cable. The zero-halogen low-smoke flame-retardant sheath material used for the photovoltaic cable is composed of the following components of, in parts by weight, 2-10 parts of maleic anhydride-grafted ethylene-vinyl acetate copolymer, 5-20 parts of ethylene-propylene-diene monomer, 2-10 parts of high-density polyethylene, 5-20 parts of polyolefin elastomer, 45-65 parts of fire retardant, 1-5 parts of flame-retardant synergist, 0.5-1.5 parts of surface modifier, 0.5-2 parts of antioxidant, 1-5 parts of lubricant and 0.5-1.5 parts of cross-linking sensitizer. The produced zero-halogen low-smoke flame-retardant sheath material used for the photovoltaic cable not only meets the specification in EN50618 standard of dampness-heat resistance, low temperature resistance, weather resistance, ozone resistance, 250-DEG C thermal elongation, resistance to acid and alkali, light transmittance insmoke, non-halogen and the like, but also meets the specification in UL4703 standard of oil resistance, VW-1 combustion, mechanical performance and the like, and is a cable sheath material which is up to both the EN50618 standard and the UL4703 standard.
Description
technical field [0001] The invention relates to the field of photovoltaic cable sheathing materials, in particular to a halogen-free low-smoke flame-retardant sheathing material for photovoltaic cables and a preparation method thereof. Background technique [0002] Photovoltaic power generation is the use of solar cells to directly convert solar energy into electrical energy. Compared with traditional thermal power, the advantage of solar photovoltaic power generation is to reduce the emission of carbon and sulfur compounds, thereby effectively reducing the greenhouse effect. On the other hand, as a resource, solar energy has the advantage of "inexhaustible and inexhaustible", which is unmatched by traditional fossil energy. With the rapid take-off of China's overall national strength, China's photovoltaic industry has also completed a gorgeous transformation from a follower to a leader. Whether it is the manufacture of photovoltaic power generation equipment, or marketing...
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