Flame retardant compound, flame retardant epoxy resin and flame retardant composition

Abstract

The invention discloses a flame retardant compound, flame retardant epoxy resin and a flame retardant composition. In a molecular structure, the flame retardant compound contains a phosphonitrilic group, the phosphonitrilic group is prepared from the following components in percentage by weight: at least 50 wt% of 3-ring phosphonitrilic group, at most 30 wt% of chain-like phosphonitrilic group and at most 45 wt% of more than 4-ring phosphonitrilic group. According to the flame retardant compound disclosed by the invention, the 3-ring phosphonitrilic group contains a phosphorus nitrogen ring formed by three phosphorus nitrogen atoms, the chain-like phosphonitrilic group contains a phosphorus nitrogen chain formed by at most two phosphorus nitrogen atoms, and the more than 4-ring phosphonitrilic group contains a phosphorus nitrogen ring formed by at least four phosphorus nitrogen atoms, so that the flame retardant compound is good in flame retardancy, a cured material of the flame retardant compound is good in heat resistance, water resistance, adhesiveness, mechanical property and electric property, and the flame retardant compound is an environment-friendly fire retardancy material with large economy.

Description

technical field

[0001] The invention relates to the technical field of flame retardant substances, in particular to a flame retardant compound, a flame retardant epoxy resin and a flame retardant composition. Background technique

[0002] Electronic products represented by mobile phones, computers, cameras, and electronic game consoles, household and office electrical products represented by air conditioners, refrigerators, TV images, audio products, etc., and various products used in other fields, for the sake of safety, a large part All products are required to have different degrees of flame retardancy.

[0003] In order to make the product meet the required flame retardant properties or grades, traditional technologies often use inorganic flame retardants such as aluminum hydroxide hydrate, magnesium hydroxide hydrate and other metal hydroxides containing crystal water to the material system. Substances, and adding to the system materials such as brominated bisphenol A,...

Examples

Embodiment 1

[0042] Add 173.83g (0.5mol) of hexachlorocyclotriphosphorcyanate, 150ml of acetone, 100.06g (2.0mol) of sodium methylate and 242g (2.2mol) of hydroquinone into a three-port 1000ml glass reactor with a stirring device, while stirring, While blowing nitrogen, raise the temperature to 45°C, add 400g of 20% sodium hydroxide solution dropwise over 60 minutes, keep the temperature at 45°C, and stir for 12 hours. After the reaction, remove the moisture in the system by physical means, filter and remove the insoluble matter in the system, and distill off the solvent in the system to obtain 558.0 g of a new standard flame-retardant substance shown in general formula (II), and measure its phenolic equivalent It is 165g / eq, and this target product is named as A.

Embodiment 2

[0044] Put 180g of dichloroethane, 104.11g (0.5mol) of phosphorus pentachloride, 26.75g (0.5mol) of ammonium chloride and 20g of magnesium chloride into a three-port 1000ml glass reactor with a stirring device. Heat up to 60°C while stirring and blowing nitrogen, and react at 60°C for 6 hours, then add 100.06g (2.0mol) of sodium methoxide and 242g (2.2mol) of hydroquinone to continue the reaction for 8 hours , add 250g of solvent, remove the insoluble matter by filtration, and then evaporate the solvent to obtain 556.8g of the new flame retardant substance shown in the general formula (II), and its phenolic equivalent is 164g / eq. The product of this purpose is named as b.

Embodiment 3

[0046] (1) in the three mouthful 500ml glass reactors that have stirring device, drop into the triphenylphosphine that epoxy equivalent is the liquid bisphenol A type epoxy resin 374g of 187g / eq and object A material 38g and 0.1g, is warming up to 120 ℃, reacted for 5 hours, and the epoxy equivalent obtained was 412g of the object epoxy resin of 232g / eq, then added acetone and modulated into a 60% epoxy resin solution, and this object was named as C.

[0047] (2) Take 100g of the solution of substance C (solid content is 60g), then add 3.0g of dicyandiamide and an appropriate amount of DMF, after stirring uniformly, add 0.08g of 2-methylimidazole to make a solution, and then follow the general The standard copper clad laminate samples conforming to the national standard, UL and other standards are prepared according to the production procedure of the copper clad laminate, named a copper clad laminate, and the performance of the a copper clad laminate is tested, and the results ...

technical field

[0001] The invention relates to the technical field of flame retardant substances, in particular to a flame retardant compound, a flame retardant epoxy resin and a flame retardant composition. Background technique

[0002] Electronic products represented by mobile phones, computers, cameras, and electronic game consoles, household and office electrical products represented by air conditioners, refrigerators, TV images, audio products, etc., and various products used in other fields, for the sake of safety, a large part All products are required to have different degrees of flame retardancy.

[0003] In order to make the product meet the required flame retardant properties or grades, traditional technologies often use inorganic flame retardants such as aluminum hydroxide hydrate, magnesium hydroxide hydrate and other metal hydroxides containing crystal water to the material system. Substances, and adding to the system materials such as brominated bisphenol A,...

Examples

Embodiment 1

[0042] Add 173.83g (0.5mol) of hexachlorocyclotriphosphorcyanate, 150ml of acetone, 100.06g (2.0mol) of sodium methylate and 242g (2.2mol) of hydroquinone into a three-port 1000ml glass reactor with a stirring device, while stirring, While blowing nitrogen, raise the temperature to 45°C, add 400g of 20% sodium hydroxide solution dropwise over 60 minutes, keep the temperature at 45°C, and stir for 12 hours. After the reaction, remove the moisture in the system by physical means, filter and remove the insoluble matter in the system, and distill off the solvent in the system to obtain 558.0 g of a new standard flame-retardant substance shown in general formula (II), and measure its phenolic equivalent It is 165g / eq, and this target product is named as A.

Embodiment 2

[0044] Put 180g of dichloroethane, 104.11g (0.5mol) of phosphorus pentachloride, 26.75g (0.5mol) of ammonium chloride and 20g of magnesium chloride into a three-port 1000ml glass reactor with a stirring device. Heat up to 60°C while stirring and blowing nitrogen, and react at 60°C for 6 hours, then add 100.06g (2.0mol) of sodium methoxide and 242g (2.2mol) of hydroquinone to continue the reaction for 8 hours , add 250g of solvent, remove the insoluble matter by filtration, and then evaporate the solvent to obtain 556.8g of the new flame retardant substance shown in the general formula (II), and its phenolic equivalent is 164g / eq. The product of this purpose is named as b.

Embodiment 3

[0046] (1) in the three mouthful 500ml glass reactors that have stirring device, drop into the triphenylphosphine that epoxy equivalent is the liquid bisphenol A type epoxy resin 374g of 187g / eq and object A material 38g and 0.1g, is warming up to 120 ℃, reacted for 5 hours, and the epoxy equivalent obtained was 412g of the object epoxy resin of 232g / eq, then added acetone and modulated into a 60% epoxy resin solution, and this object was named as C.

[0047] (2) Take 100g of the solution of substance C (solid content is 60g), then add 3.0g of dicyandiamide and an appropriate amount of DMF, after stirring uniformly, add 0.08g of 2-methylimidazole to make a solution, and then follow the general The standard copper clad laminate samples conforming to the national standard, UL and other standards are prepared according to the production procedure of the copper clad laminate, named a copper clad laminate, and the performance of the a copper clad laminate is tested, and the results ...

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