A kind of halogen-free low-smoke flame-retardant rubber for wire and cable and preparation method thereof

A wire and cable, low-smoke flame retardant technology, applied in the field of halogen-free low-smoke flame retardant rubber and its preparation, can solve the problems of high smoke density, difficult escape, human suffocation, etc., achieve good mechanical properties, good flame retardant effect, Promising effects

Inactive Publication Date: 2016-03-30
LANGFANG CUISHI CABLE MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most flame-retardant rubber products use halogen-containing flame retardants and antimony compounds as flame-retardant systems, but such flame-retardant systems produce toxic compounds and corrosive gases during combustion or high-temperature pyrolysis, and the smoke density when burning Larger, causing human suffocation or difficult escape, causing greater losses and urgent, so there is an urgent need to develop halogen-free low-smoke flame-retardant rubber for wires and cables that will not cause "secondary disasters" to meet market demand

Method used

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  • A kind of halogen-free low-smoke flame-retardant rubber for wire and cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A halogen-free low-smoke flame-retardant rubber for wire and cable, made of the following raw materials (kg): EPDM rubber 100, methyl vinyl silicone rubber 45, nylon 101030, EPDM rubber grafted Toric anhydride 15, tert-butylcatechol 2, terpene resin 5, rosin glyceride 4, tall oil 10, zinc oxide 3, stearic acid 1, anti-aging agent 4010NA1.5, anti-aging agent 10761, accelerator DTDM2, accelerator Agent DZ1, magnesium hydroxide 16, mica powder 10, resorcinol bis(diphenyl phosphate) 12, thiodipropionic acid 2.5, polytrimethylene adipate 5, dicumyl peroxide 2, three Allyl isocyanurate 1.5, modified filler 18;

[0013] The preparation method of the modified filler is as follows: (1) Weigh sillimanite, oil shale, and attapulgite at a weight ratio of 4:3:2, mix them evenly, grind them, and sieve them, and then pure NH at 650°C 3 Calcined under the atmosphere for 1 h, then pure H at 360 °C 2 Calcined under atmosphere for 2 hours, cooled naturally to room temperature; (2) Take ...

Embodiment 2

[0016] A halogen-free low-smoke flame-retardant rubber for wire and cable, made of the following raw materials (kg): EPDM rubber 120, methyl vinyl silicone rubber 55, nylon 101040, EPDM rubber grafted Toric anhydride 20, tert-butylcatechol 3, terpene resin 8, rosin glyceride 5, tall oil 12, zinc oxide 4, stearic acid 1.5, antioxidant 4010NA2, antioxidant 10761.5, accelerator DTDM2.5, accelerator Agent DZ1.5, magnesium hydroxide 18, mica powder 12, resorcinol bis(diphenyl phosphate) 16, thiodipropionic acid 3.5, polytrimethylene adipate 8, dicumyl peroxide 3 , triallyl isocyanurate 2, modified filler 22;

[0017] The preparation method of the modified filler is as follows: (1) Weigh sillimanite, oil shale, and attapulgite at a weight ratio of 6:4:2.5, mix them evenly, crush them, and sieve them, then pure NH at 700°C 3 Calcined under the atmosphere for 1h, then pure H at 380°C 2 Calcined under atmosphere for 1.5h, cooled naturally to room temperature; (2) Take 22% nano-silica...

Embodiment 3

[0020] A halogen-free low-smoke flame-retardant rubber for wire and cable, made of the following raw materials in parts by weight: EPDM rubber 150, methyl vinyl silicone rubber 65, nylon 101050, EPDM rubber grafted with maleic anhydride 25. Tertiary butyl catechol 4, terpene resin 10, rosin glyceride 6, tall oil 15, zinc oxide 5, stearic acid 2, antioxidant 4010NA2.5, antioxidant 10762, accelerator DTDM3, accelerator DZ2 , magnesium hydroxide 22, mica powder 15, resorcinol bis(diphenyl phosphate) 18, thiodipropionic acid 4.5, polytrimethylene adipate 10, dicumyl peroxide 4, triallyl Base isocyanurate 2.5, modified filler 24;

[0021] The preparation method of the modified filler is as follows: (1) Weigh sillimanite, oil shale, and attapulgite at a weight ratio of 8:5:3, mix them evenly, grind them, and sieve them, and then pure NH at 750°C 3 Calcined under the atmosphere for 0.5h, then pure H at 420°C 2 Calcined under atmosphere for 1h, cooled naturally to room temperature; ...

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Abstract

The invention discloses zero-halogen low-smoke and flame-retardant rubber for electric wires and cables and a preparing method for the zero-halogen low-smoke and flame-retardant rubber. The zero-halogen low-smoke and flame-retardant rubber is formed by the following materials, by weight, 100 to 150 parts of EPDM, 45 to 65 parts of methyl vinyl silicone rubber, 30 to 50 parts of nylon 1010, 15 to 25 parts of EPDM grafted maleic anhydride, 2 to 4 parts of tert-butyl catechol, 5 to 10 parts of terpene resin, 4 to 6 parts of rosin glyceride, 10 to 15 parts of tall oil, 3 to 5 parts of zinc oxide, 1 to 2 parts of stearic acid, 1.5 to 2.5 parts of age resister 4010NA, 1-2 parts of aging resister 1076, 2 to 3 parts of accelerant DTDM, 1to 2 parts of accelerant DZ, 16 to 22 parts of magnesium hydrate and 10 to 15 parts of mica powder. The zero-halogen low-smoke and flame-retardant rubber is good in flame retardant efficiency, low in smoke and free of halogen, does not generate harmful and corrosive gas, is safe and environmentally friendly, has good mechanical properties, electric insulation properties, oil resistance, heat-resistant quality and anti-aging performance, and is capable of being used for manufacturing the electric wires and cables in various industries and wide in application prospect.

Description

technical field [0001] The invention relates to a halogen-free low-smoke flame-retardant rubber for wires and cables and a preparation method thereof, belonging to the field of rubber materials. Background technique [0002] With the rapid development of industry and economy, rubber wires and cables are increasingly used in nuclear power plants, high-rise buildings, underground buildings and subways. Once a fire occurs, the flame will spread and burn along the cable system, causing a fire. Therefore, the wire The flame retardant problem of cables has been highly valued by people. Effective flame retardant of rubber can ensure that flame retardant products meet social needs, prevent fires, and protect the safety of human life and property. At present, most flame-retardant rubber products use halogen-containing flame retardants and antimony compounds as flame-retardant systems, but such flame-retardant systems produce toxic compounds and corrosive gases during combustion or hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L83/07C08L77/06C08L51/06C08L67/02C08K13/06C08K9/00C08K9/06C08K9/04C08K3/34C08K3/22C08K5/523C08K5/3492C08K5/14
CPCC08K2201/014C08L23/16C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/035H01B3/28C08L83/04C08L77/06C08L51/06C08L67/02C08K13/06C08K9/00C08K9/06C08K9/04C08K3/34C08K2003/2296C08K5/523C08K5/34924C08K5/14
Inventor 任新年
Owner LANGFANG CUISHI CABLE MATERIAL CO LTD
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