Thermoplastic halogen-free low-smoke flame-retardant ceramic polyolefin oxygen barrier material

A polyolefin oxygen barrier, low-smoke and flame-retardant technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of serious threats to high-rise buildings, difficulty in observing fire sources, and difficulty in handling accidents. Small, operational aspects, low price effect

Inactive Publication Date: 2019-05-28
BAOSHENG SCI & TECH INNOVATION +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a group of bundled wires and cables have an accident and the melting temperature of the hot spot reaches 800-1100 °C, the threat to high-rise buildings is particularly serious. During the accident, the smoke is large, and it is difficult to observe the source of ignition, and the accident handling is very difficult.

Method used

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  • Thermoplastic halogen-free low-smoke flame-retardant ceramic polyolefin oxygen barrier material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 100 parts of ethylene-vinyl acetate copolymer weighed in parts by weight, 50 parts of magnesium hydroxide as flame retardant, 25 parts of mica powder as ceramic powder A, 50 parts of kaolin as ceramic powder B, and 50 parts of ceramic powder C as white carbon 25 parts of black, 30 parts of low-melting glass powder as flux, 5 parts of stearic acid as lubricant, 2 parts of coupling agent 11-100, put into internal mixer for mixing, when the temperature reaches 120℃ The material is discharged and fed into the twin-screw extruder through the conical tipping bucket. Zone 120°C, Zone 7 125°C, Zone 8 125°C, Zone 9 125°C. Through single-screw granulation extrusion and cold cutting, a thermoplastic halogen-free low-smoke flame-retardant ceramizable polyolefin oxygen barrier layer material is obtained.

Embodiment 2

[0022] 70 parts of ethylene-vinyl acetate copolymer, 30 parts of polyethylene copolymer, 50 parts of aluminum hydroxide as flame retardant, 70 parts of kaolin as ceramic powder A, 30 parts of white carbon black as ceramic powder B Parts, flux A is 15 parts of low-melting glass powder (melting point 450°C-500°C), flux B is 25 parts of low-melting point glass powder (melting point 850°C-900°C), lubricant is 5 parts of polyethylene wax, even The joint agent is 11-100 3 parts, put into the internal mixer for mixing, when the mixing reaches 125°C, the material is discharged, and the material is fed into the twin-screw extruder through the conical tipping bucket, and the twin-screw temperature zone is set to The first zone is 112°C, the second zone is 118°C, the third zone is 118°C, the fourth zone is 123°C, the fifth zone is 123°C, the sixth zone is 123°C, the seventh zone is 128°C, the eighth zone is 128°C, and the ninth zone is 128°C. Through single-screw granulation extrusion an...

Embodiment 3

[0024] 100 parts of ethylene-vinyl acetate copolymer weighed in parts by weight, flame retardant A is 20 parts of magnesium hydroxide, flame retardant A is 60 parts of aluminum hydroxide, ceramic powder A is 50 parts of quartz powder, ceramic powder B is 20 parts of muscovite, 15 parts of zinc oxide as a flux, 5 parts of polyethylene wax as a lubricant, and 3 parts of coupling agent KH5503, put them into the internal mixer for mixing, and discharge when the mixing temperature reaches 115°C , Feed the material into the twin-screw extruder through the conical tipping bucket. The twin-screw temperature zone is set to 110°C in the first zone, 114°C in the second zone, 114°C in the third zone, 118°C in the fourth zone, 118°C in the fifth zone, and 118 in the sixth zone. ℃, 123℃ in the seventh zone, 123℃ in the eighth zone, and 123℃ in the ninth zone. Through single-screw granulation extrusion and cold cutting, a thermoplastic halogen-free low-smoke flame-retardant ceramizable polyo...

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Abstract

The invention relates to a thermoplastic halogen-free low-smoke flame-retardant ceramic polyolefin oxygen barrier material which is prepared from the following raw materials in parts by weight: 5-100parts of a polyolefin copolymer, 50-100 parts of a flame retardant, 100-150 parts of ceramic powder, 20-40 parts of a fluxing agent, 5-10 parts of a coupling agent, 10-30 parts of a compatilizer, 2-5parts of a lubricant and 1.5-4 parts of an antioxidant. The thermoplastic halogen-free low-smoke flame-retardant ceramic polyolefin oxygen barrier material is simple in process flow and easy to operate and can be produced according to the process and the processing temperature of a halogen-free low-smoke polyolefin cable material. A product can be used for high, medium and low voltage fire-resistant electric wires and cables, flexible fireproof cables, fireproof power and control cables, mine cables, marine cables, oil field and offshore platform fireproof cables, fireproof coaxial cables, fireproof optical fibers and cables and flexible fireproof and fire-resistant cables, and can be used for replacing a mica belt, ceramic fire-resistant silicone rubber and a ceramic fire-resistant composite belt in an aluminum alloy sheath fireproof and fire-resistant cable, is rapidly sintered into ceramic at the temperature higher than 600 DEG C so as to form a good shell, has excellent heat insulation and fire insulation effects, has a structural flame retardancy effect and is used for improving the cable flame retardancy.

Description

technical field [0001] The invention relates to a thermoplastic halogen-free low-smoke flame-retardant ceramizable polyolefin oxygen barrier layer material. Background technique [0002] There are frequent major fire incidents at home and abroad, often causing a lot of loss of life and property. With the rapid development and application of high technology in today's world, in modern buildings, especially intelligent high-rise buildings, various electrical and electronic systems are becoming more and more complex, and the lines are densely distributed, which brings great convenience to office automation and agile communication. At the same time, the situation that electrical fire accidents have increased year by year has brought negative effects to high-rise managers, users and maintenance personnel, and added a lot of troubles. [0003] In high-rise buildings, because wires and cables are laid in bundles and erected on wire racks, once a fire occurs on the wires and cables...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08K13/02C08K3/22C08K3/34C08K3/36C08K3/40C08K5/09C08K5/544H01B3/44
Inventor 吴淑龙陈刚李茁实彭娜张军金志健吴杰峰陈文革
Owner BAOSHENG SCI & TECH INNOVATION
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