Oil-resistant low-temperature-resistant flame-retardant polyolefin rubber cable material and preparation method thereof
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A technology of polyolefin rubber and low temperature resistance is applied in the field of oil-resistant and low-temperature flame-retardant polyolefin rubber cable material and its preparation. The effect of electric energy and excellent flame retardancy
Active Publication Date: 2016-12-14
天津金山电线电缆股份有限公司
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Embodiment 1
[0031] A 125°C chemically cross-linked oil-resistant, low-temperature, and flame-retardant polyolefin rubber cable material, which consists of 100 parts by weight of EVA resin, 50 nano-scale organic flame retardants, nano-aluminum hydroxide, 50 magnesium hydroxide, and 5 white carbon black. , Nano clay kaolin 15, processing aid zinc stearate 5, Dow Corning silane coupling agent A-172 1, low temperature plasticizer dioctyl sebacate 5 and 168 plasticizer 3, antiaging agent 2246S 0.5, peroxide Compound vulcanizing agent 1.2, vulcanization aid triallyl isocyanurate 0.5. Nano organic flame retardant combined with nano aluminum hydroxide and magnesium hydroxide, the surface is treated with silane coupling agent.
Embodiment 2
[0033] An oil-resistant, low-temperature, and flame-retardant polyolefin rubber cable material, which consists of 100 parts by weight of EVA resin, 80 nanometer-scale organic flame retardants, nano-aluminum hydroxide and 80 magnesium hydroxide, 10 white carbon black, and 25 nano-clay kaolin. , processing aid calcium stearate 10, Dow Corning silane coupling agent A-172 2, low-temperature plasticizer dioctyl sebacate 7 and 168 plasticizer 7, antioxidant 2246S 1.5, peroxide vulcanizing agent 2, Vulcanization aid triallyl isocyanurate 1. Nano organic flame retardant combined with nano aluminum hydroxide and magnesium hydroxide, the surface is treated with silane coupling agent.
Embodiment 3
[0035] Embodiment 1 The preparation method of oil-resistant and low-temperature flame-retardant polyolefin rubber cable material, its preparation process is as follows:
[0036] 1) Mastication
[0037] Plasticize the EVA resin particles in the internal mixer alone for 5 minutes, then roll them down and let them stand for 24 hours before they can be used; when the temperature on the internal mixer reaches 60°C, turn on the cooling water of the internal mixer for cooling;
[0038] 2) Mixing
[0039] The plasticized EVA resin is put into banburying for plastication, and the time is controlled at 0.5min;
[0040] Add processing aids, silane coupling agent, nano-clay and white carbon black, and the mixing time is 4 minutes;
[0041] Add nano-organic flame retardant, low-temperature plasticizer, anti-aging agent, odorless vulcanizing agent, and vulcanization aid. When adding nano-organic flame retardant, add nano-organic flame retardant one bag at a time, the time interval is 1min...
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Abstract
The invention relates to an oil-resistant low-temperature-resistant flame-retardant polyolefin rubber cable material and a preparation method thereof, and belongs to the technical field of power cables. The oil-resistant low-temperature-resistant flame-retardant polyolefin rubber cable material is prepared from the following components in parts by weight: 90 to 110 parts of EVA resin, 100 to 160 parts of a nanoscale organic flame retardant, 5 to 10 parts of white carbon black, 15 to 25 parts of nano-pottery clay, 5 to 10 parts of a processing auxiliary agent, 0.5 to 2 parts of a silane coupling agent, 8 to 15 parts of a low-temperature plasticizer, 0.5 to 1.5 parts of an anti-ageing agent, 1.2 to 2.0 parts of a tasteless vulcanizing agent and 0.5 to 1.0 part of a vulcanizing auxiliary agent. The preparation method comprises the following steps: 1, plastifying: plastifying EVA resin particles for 5 to 8 minutes in an internal mixer, scrolling down and allowing standing still; 2, mixing: plastifying the primarily plastified EVA resin for 0.5 to 1.5 minutes; adding the processing auxiliary agent, the silane coupling agent, the nano-pottery clay and the white carbon black and mixing for 4 to 6 minutes; adding the nanoscale organic flame retardant, the low-temperature plasticizer and the anti-ageing agent and mixing for 5 to 7 minutes; adding the tasteless vulcanizing agent and the vulcanizing auxiliary agent in a later period. The invention has the advantages that the oil-resistant low-temperature-resistant flame-retardant polyolefin rubber cable material has excellent fire resistance, high mechanical property, high insulating property and high elasticity; the process is simple, the operation is convenient, the control is accurate, and the product is stable.
Description
technical field [0001] The invention belongs to the technical field of power cables, in particular to an oil-resistant, low-temperature and flame-retardant polyolefin rubber cable material and a preparation method thereof. Background technique [0002] At present, in order to ensure its high flame retardancy, the existing chemically cross-linked flame-retardant polyolefin cable materials have insufficient elasticity, and their elongation at break is below 200%, which cannot meet the requirements of some special products. , The contradiction between physical and mechanical properties and high elastic properties. Moreover, the existing manufacturing process has complex processing technology, inconvenient operation, unstable product quality, and even poisonous and harmful. The flame retardancy, mechanical performance, insulation performance and elasticity of the product do not meet the material requirements of wire and cable for rolling stock and F-class motor lead wire. Thes...
Claims
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