P-N fire retardant, flame-retardant master batch, flame-retardant nylon engineering plastic and preparation method thereof

A technology of flame retardant masterbatch and engineering plastics, which is applied in the fields of flame retardant masterbatch and flame retardant nylon engineering plastics, P-N type flame retardants, and can solve the problem of poor comprehensive performance of flame retardant nylon engineering plastics in terms of flame retardancy and mechanical properties. question

Active Publication Date: 2013-05-08
NINGBO CHANGYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the defect of poor comprehensive performance of flame retardancy and mechanical properties of flame retardant nylon engineering plastics existing in the prior art

Method used

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  • P-N fire retardant, flame-retardant master batch, flame-retardant nylon engineering plastic and preparation method thereof
  • P-N fire retardant, flame-retardant master batch, flame-retardant nylon engineering plastic and preparation method thereof
  • P-N fire retardant, flame-retardant master batch, flame-retardant nylon engineering plastic and preparation method thereof

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Effect test

preparation example Construction

[0085] The preparation method of the P-N type flame retardant masterbatch provided by the invention comprises the following steps:

[0086] (1) Add dibasic acid compounds, such as 3-(hydroxyphenylphosphono)-propionic acid (CEPP) and diamines, such as ethylenediamine, into a reaction vessel, and add them to a beaker with a stirring bar and water respectively In the process, the acid-base neutralization reaction occurs under the stirring of a magnetic stirrer. After the reaction for 0.5-1h, it is poured into a tray and placed under an infrared lamp to evaporate the water completely, and a white solid product is obtained. The molar ratio of the dibasic acid compound to the diamine is 1:1; (2) The product obtained in step (1) is dried and ground into a white powder. Weigh the white powder and put it into a stainless steel reaction kettle with a water circulation jacket, built-in low-speed stirrer, thermal coupling sensor, and intermittent feeding port. Under a nitrogen atmosphere...

Embodiment 1

[0101] The synthetic route of flame retardant 3-(hydroxy-phenyl-phosphoryl)-propionic acid ethylenediamine polymer (CEPP-EA) is as follows:

[0102]

[0103]

[0104] In a four-neck flask equipped with a stirring device, a thermometer, and a dropping funnel, add 3-(hydroxy-phenyl-phosphoryl)-propionic acid (CEPP) (214g, 1mol) and ethylenediamine (116g, 1mol) respectively , Acid-base neutralization reaction occurs under the stirring of a magnetic stirrer. After 30 minutes of reaction, pour it into a tray and place it under an infrared lamp to evaporate the water to obtain a white solid product (intermediate). Dry and grind the obtained white solid product Fine into white powder. Weigh 320g of white powder (intermediate), put it into a stainless steel reactor with a water circulation jacket, built-in low-speed stirrer, thermal coupling sensor, intermittent feeding port, the reactor is 25L. Under a nitrogen atmosphere, the initial reaction temperature is 220°C, and then th...

Embodiment 2

[0107] The synthetic route of flame retardant 3-(hydroxy-naphthyl-phosphoryl)-propionic acid ethylenediamine polymer (CENP-EA) is as follows:

[0108]

[0109]In a four-neck flask equipped with a stirring device, a thermometer, and a dropping funnel, add 3-(hydroxy-naphthyl-phosphoryl)-propionic acid (CENP) (264g, 1mol) and ethylenediamine (116g, 1mol) respectively. , under the stirring of a magnetic stirrer, an acid-base neutralization reaction occurs. After 40 minutes of reaction, it is poured into a tray and placed under an infrared lamp to evaporate the water completely, and a white solid product is obtained. The product obtained in step (1) is dried and ground into white powder. Weigh 380g of white powder and put it into a stainless steel reaction kettle with a water circulation jacket, built-in low-speed stirrer, thermal coupling sensor, and intermittent feeding port. Under a nitrogen atmosphere, the initial reaction temperature was 210°C, and then a temperature prog...

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Abstract

The invention relates to a nylon engineering plastic, particularly relates to a P-N fire retardant, a flame-retardant master batch, and a flame-retardant nylon engineering plastic. In order to solve the defects of poor fire resistance and mechanical property of the flame-retardant nylon engineering plastic in the prior art, the invention provides the P-N fire retardant, the flame-retardant master batch, the flame-retardant nylon engineering plastic and preparation methods thereof. The structural general formula of the P-N fire retardant provided by the invention is shown in the specification, wherein R1 is a benzyl or aryl functional group; R2 and R3 are alkyl or hydrogen; R4 and R5 are alkyl or hydrogen; n is greater than or equal to 2, preferably 2-6; and m represents the polymerization degree of polymer and is an integer greater than or equal to 1. The flame-retardant master batch provided by the invention comprises the fire retardant. The glass fiber reinforced flame-retardant nylon engineering plastic provided by the invention comprises the flame-retardant master batch. The fire retardant and the flame-retardant master batch provided by the invention are good in flame-retardant effect; and the provided nylon has better fire resistance and mechanical property.

Description

technical field [0001] The invention relates to the technical field of flame-retardant nylon engineering plastics, in particular to a P-N type flame retardant, flame-retardant masterbatch and flame-retardant nylon engineering plastics. Background technique [0002] Glass fiber reinforced nylon engineering plastics are widely used in the national economy and people's daily life, so the performance requirements for their use are getting higher and higher. At present, they are widely used in automobiles, electronic appliances, such as terminal posts, Sockets, switches, electrical housings, automotive interior connectors, interior decoration materials, internal parts of home appliances, etc. In many applications, fire resistance is a crucial factor, especially in electrical applications, such as terminals, sockets, switches, etc. Adding appropriate flame retardants can improve its flame resistance. According to the UL standard of the United States, nylon is UL94V-2, and by addi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/42C08L77/00C08L77/02C08L77/06C08K9/06C08K7/14C08J3/22
Inventor 不公告发明人
Owner NINGBO CHANGYANG TECH
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