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High-glow-wire initiation temperature flame-retardant nylon composition

A light-off temperature, flame-retardant nylon technology, applied in the field of polymer materials, can solve the problems of melting and dripping, unable to meet the requirements of high glow wire temperature, difficult to reach the glow wire temperature, etc., to save costs and facilitate large-scale promotion and application , Product cost-effective effect

Inactive Publication Date: 2013-09-18
慈溪金岛塑化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a certain flame retardant is used alone, although the nylon material can obtain relatively good vertical combustion performance, the glow wire temperature is difficult to reach 850 ℃, which cannot meet the high glow wire temperature requirements of electronic and electrical materials.
In addition, burning is often accompanied by severe molten dripping

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 650g nylon 66 resin, 190g aluminum hypophosphite, 48g melamine, 12g silicone polymer fanton FT333, 10g zinc borate, 30g char-forming accelerator, 30g alumina, 10g tetrakis[β-(3,5-di-tert-butyl -4-hydroxyl) phenylpropionic acid] pentaerythritol ester, 20g gamma-aminopropyltriethoxysilane join high-speed mixer and mix evenly, under the condition of conventional feeding speed and screw speed, the gained mixture is added into the screw extruder Extrude, cool, and cut the material in the barrel to obtain 1 kg of a flame-retardant nylon composition with a high glow wire ignition temperature, wherein the extrusion temperature is 200-240°C. According to the UL94 standard, its vertical burning performance is V-0 level. According to the GBT 5169.13-2006 standard test, its glow wire temperature passed 850°C.

[0019] The char-forming accelerator used is solid superacid SO coated with triazine char-forming agent 4 2- / TiO 2 , wherein the coating amount of the triazine char-form...

Embodiment 2

[0021] 850g nylon 66 resin, 70g red phosphorus, 23g triazine char forming agent, 7g silicone polymer masterbatch JavachemTM GT-300, 30g sepiolite, 1g char forming accelerator, 10g zinc oxide, 4gβ-(3,5 - Di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, 5g γ-methacryloxypropyl trimethoxysilane (KH-570) were added to the high-speed mixer and mixed evenly, Under the conditions of speed and screw rotation speed, the obtained mixture is added to the barrel of the screw extruder for extrusion, cooling, and material cutting to obtain 1 kg of flame-retardant nylon composition with high glow wire ignition temperature, wherein the extrusion temperature is 200 to 240 ℃. According to the UL94 standard, its vertical burning performance is V-0 level. According to the GBT 5169.13-2006 standard test, its glow wire temperature passed 850°C.

[0022] The char-forming accelerator used is solid superacid SO coated with triazine char-forming agent 4 2- / Fe 2 o 3 , wherein the coating amou...

Embodiment 3

[0024] 650g nylon 66 resin, 200g ammonium polyphosphate, 80g melamine, 20g cage silsesquioxane, 4g attapulgite, 20g char-forming accelerator, 20g magnesium oxide, 1g tri(2,4-di-tert-butylbenzene Base) phosphite, 5g isopropyl tris (dioctylphosphoryl) titanate (NSZ-20) are added to the high-speed mixer and mixed evenly, under the conditions of conventional feeding speed and screw speed, the resulting mixture is added to the screw Extruding, cooling, and cutting in the barrel of the extruder to obtain 1 kg of a flame-retardant nylon composition with a high glow wire ignition temperature, wherein the extrusion temperature is 200-240°C. According to the UL94 standard, its vertical burning performance is V-0 level. According to the GBT 5169.13-2006 standard test, its glow wire temperature passed 850°C.

[0025] The char-forming accelerator used is solid superacid SO coated with triazine char-forming agent 4 2- / ZrO 2 , wherein the coating amount of the triazine char-forming agen...

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PUM

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Abstract

The invention discloses a high-glow-wire initiation temperature flame-retardant nylon composition. When a certain single flame retardant is used, although a nylon material can obtain a good combustion performance, the temperature of glow wires cannot reach 850 DEG C easily, and the requirement of electronics on high-glow-wire temperature of a material can not be met, and a serious fusion dropping phenomenon occurs in combustion. The high-glow-wire initiation temperature flame-retardant nylon composition is a blended material, and the blended material comprises the following components in percentage by mass: 65-85% of nylon 66 resin, 10-30% of multi-component flame retardants, 0.1-3% of anti-dropping agents, 0.1-3% of carbon formation accelerants, 1-3% of glow wire initiation temperature reinforcing agents, 0.1-1% of anti-oxidation agents and 0.5-2% of coupling agents. The blended material has favorable mechanical performance, and can meet the high-glow-wire initiation temperature requirement.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a flame-retardant nylon composition with a high glow wire ignition temperature. Background technique [0002] Nylon is currently the most widely used engineering plastic, and its output ranks first among the world's top five engineering plastics. It is widely used in electronics, automobiles, mechanical instruments, national defense, aviation and other fields. With the development of high-performance and miniaturization of electronic and electrical equipment, the performance of flame-retardant nylon is also required to be higher and higher. The domestic high-end nylon engineering plastics market is almost completely occupied by the products of a few large international companies, so the development of high-flammability and flame-retardant nylon materials has great significance and broad development space. [0003] At present, flame retardants for nylon include phosphorus-based, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L83/04C08K13/06C08K9/10C08K3/30C08K3/02C08K3/32C08K5/3492C08K5/549
Inventor 韦斌陈成良张曙
Owner 慈溪金岛塑化有限公司
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