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Halogen-free flame retardant high-temperature elastomer plug material and its preparation method

An elastomer and high-temperature-resistant technology, which is applied in the field of halogen-free flame-retardant high-temperature-resistant elastomer plug material and its preparation, can solve the problems of high-temperature resistance, toughness, impact resistance and other unsatisfactory mechanical properties, and achieve excellent electrical insulation performance, high Flame retardant properties, good hand feeling effect

Active Publication Date: 2012-10-17
中广核三角洲(江苏)塑化有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the silicone rubber material, the patented plug material has been greatly improved in terms of halogen-free and flame retardant, but as a material to replace silicone rubber, there are also deficiencies in other aspects, such as high temperature resistance, toughness, impact resistance and other mechanical properties. still not ideal

Method used

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  • Halogen-free flame retardant high-temperature elastomer plug material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]First put 20% (the following are weight percentages) polyphenylene ether LXR045, 30% hydrogenated styrene YH-503, and 10% polyolefin P740J into the high-mixer, turn on the power and rotate at high speed, and put 3% isophthalic acid from the upper port Phenol-bis(diphenyl phosphate) and 15% No. 46 white oil, mix for two minutes, then add 20% intumescent flame retardant, 0.5% lubricant, 0.5% antioxidant, 1% processing Modifier, mix for one minute; start discharging after mixing evenly, and twin-screw granulation. The temperature setting of each zone of the screw is: 190°C for zone 1, 210°C for zone 2, 220°C for zone 3, 230°C for zone 4, 230°C for zone 5, 220°C for zone 6, 220°C for zone 7, 210°C for zone 8, 200°C for zone 9 , 200°C in the tenth zone, 200°C in the eleventh zone, and 190°C at the head. The screw speed is 150rpm (rotation per minute). Among them, the first to second districts are the material conveying section, the third to fifth districts are the melting a...

Embodiment 2

[0048] First put 25% (the following are weight percentages) polyphenylene ether LXR045, 20% hydrogenated styrene YH-503, and 15% polyolefin P740J into the high-mixer, turn on the power and mix at high speed, and put 3% isophthalic acid from the upper port Phenol-bis(diphenyl phosphate) and 20% No. 46 white oil, mix for two minutes, then add 15% intumescent flame retardant, 0.5% lubricant, 0.5% antioxidant, 1% processing Modifier, mix for one minute; start discharging after mixing evenly, and twin-screw granulation. The temperature setting of each zone of the screw is: 190°C for zone 1, 220°C for zone 2, 230°C for zone 3, 230°C for zone 4, 230°C for zone 5, 220°C for zone 6, 220°C for zone 7, 210°C for zone 8, 200°C for zone 9 , 200°C in the tenth zone, 200°C in the eleventh zone, and 190°C at the head. The screw speed is 150rpm (rotation per minute).

Embodiment 3

[0050] First put 30% (the following are weight percentages) polyphenylene ether LXR045, 30% hydrogenated styrene YH-503, and 5% polyolefin P740J into the high-mixer, turn on the power and mix at high speed, and put 8% isophthalic acid from the upper port Phenol-bis(diphenyl phosphate) and 15% No. 46 white oil, mix for two minutes, then add 10% intumescent flame retardant, 0.5% lubricant, 0.5% antioxidant, 1% processing Modifier, mix for one minute; start discharging after mixing evenly, and twin-screw granulation. The temperature setting of each zone of the screw is: 200°C for zone 1, 220°C for zone 2, 230°C for zone 3, 240°C for zone 4, 240°C for zone 5, 230°C for zone 6, 220°C for zone 7, 210°C for zone 8, 210°C for zone 9 , 200°C in the tenth zone, 200°C in the eleventh zone, and 200°C at the head. The screw speed is 130rpm (rotation per minute).

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Abstract

The invention provides a halogen-free flame retardant high-temperature elastomer plug material and its preparation method. The plug material is prepared by: taking 15-35% of polyphenyl ether, 20-40% of a hydrogenated styrene elastomer, and 5-15% polyolefin as the base materials, adding 10-20% of an intumescent flame retardant, 2-10% of a flame retardant synergistic agent, 5-15% of a softener, 0.2-1% of an antioxidizer and 0.5-2% of a processing modifier, then fully mixing the materials by a high mixing machine, and carrying out extrusion granulation through twin screws with a large length-diameter ratio. The product prepared by the method of the invention has a flame retardant grade up to UL94V0, can be used for injection molding of plugs with bright surfaces and good hand feel, moderate hardness and good toughness, excellent shock resistance, good electrical insulation performance, puncture resistance, and high temperature resistance. The plug material of the invention can be stably used for a long time under a temperature of 200DEG C, and can substitute silicon rubber to be widely used for plugs, sockets and connectors matching high temperature electric wires and lead wires in machinery, chemical and other industries.

Description

technical field [0001] The invention relates to materials for plugs, sockets and connectors of power sources such as wires and cables (hereinafter referred to as "plug materials"), in particular to a halogen-free, flame-retardant, high-temperature-resistant elastomer plug material and a preparation method thereof. Background technique [0002] The plug and socket of wire and cable is the most common and the most common a kind of electrical product in people's daily life. In addition to meeting the requirements of insulation performance, the material of this product also has some other requirements, such as mechanical strength, flame retardancy, high temperature resistance, non-toxicity, and processing and molding performance. Traditional plug materials usually use PVC or polyolefin materials. Because PVC and polyolefin do not comply with the halogen-free safety regulations, and have poor high temperature resistance, the application range is greatly limited. Generally, the ...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L71/12C08L23/14C08K13/04C08K7/24C08K7/22C08K3/32C08K5/3492C08K5/523B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/625
Inventor 唐伟
Owner 中广核三角洲(江苏)塑化有限公司
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