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A compound containing phosphaazine group and maleimide group, epoxy resin material and its preparation method and application

A technology of maleimide group and epoxy resin, which is applied in the field of epoxy resin material and its preparation, compound field containing phosphazine group and maleimide group, can solve the flame retardant efficiency of flame retardant low thermal and mechanical properties of epoxy resin materials, etc., to achieve high flame retardant efficiency, good thermal and mechanical properties, and little influence on thermal and mechanical properties.

Active Publication Date: 2020-04-28
北京国化新材料技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and deficiencies of the flame retardants in the prior art, such as low flame retardant efficiency and high addition amount, which lead to a significant decline in the thermal and mechanical properties of epoxy resin materials, and provide a kind of imide-based compounds

Method used

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  • A compound containing phosphaazine group and maleimide group, epoxy resin material and its preparation method and application
  • A compound containing phosphaazine group and maleimide group, epoxy resin material and its preparation method and application

Examples

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Embodiment 1

[0059] Compound of Example 1 (DPPA-HPM)

[0060] This embodiment provides a compound (DPPA-HPM), which can be used as a novel high-efficiency phosphorus-containing heteroazine-based and maleimide-based flame retardant, and its name is 1-(4-hydroxyphenyl)-3-( 10-oxa-5-hydrogen-phosphazinyl-10-yl)pyrrolidin-2,5-dione, the structural formula is as formula (I):

[0061] .

[0062] The compound is prepared by the following preparation method:

[0063] (1) Add 0.30 mol of diphenylamine to a three-necked round-bottomed flask equipped with a mechanical stirrer, condenser and gas absorption device, and quickly add 0.32 mol of phosphorus trichloride, and start stirring. The reaction was stirred at room temperature for 30 min, then the temperature was slowly raised to 210 °C, and the reaction was continued to stir for 7 h. After cooling to room temperature, nitrogen gas was introduced to remove residual hydrogen chloride and phosphorus trichloride in the reaction flask to obtain a b...

Embodiment 2~5

[0067] Embodiment 2~5 flame retardant epoxy resin material

[0068] The compound DPPA-HPM prepared in Example 1 was applied to the epoxy resin material to prepare the flame retardant epoxy resin material. According to the weight percentage ratio in Table 1, the epoxy resin prepolymer E-51, the compound (flame retardant) DPPA-HPM, and the curing accelerator triphenylphosphine were stirred at 165 ºC for 1.5 h to obtain a homogeneous liquid. Then when the temperature of the system drops to 80 ºC, add 4,4'-diaminodiphenylmethane. After it dissolves, pour the sample into a preheated mold, place it in a vacuum drying oven to degas, and then put it in In the programmed blast drying oven, thermal curing was carried out according to the preset heating program of 80°C for 1 h, 150°C for 2 h, 180°C for 2 h, and 200°C for 2 h. Then cool naturally to room temperature, demould to obtain a flame retardant epoxy cured sample, and then polish the sample to a standard size to prepare the cured...

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Abstract

The invention relates to a composition containing a phosphorus-doped azine group and a maleinimide group, an epoxy resin material and a preparation method and application thereof. The composition is 1-(4-hydroxyphenyl)-3-(10-oxa-5-hydro-phosphorus-doped azine group-10-group)pyrrolidine-2,5-diketone, and the structural formula of the composition is shown in the formula (I). The composition providedby the invention has the high flame retardant efficiency, can serve as a high-efficiency phosphorus and nitrogen containing reaction type flame retardant of the epoxy resin material, the flame retardant effect at the UL 94 V-0 level can be reached by adding a small amount of the composition, and meanwhile, the influence on the thermal performance and the mechanical performance of the epoxy resinmaterial is small. The flame retardant epoxy resin material provided by the invention has a relatively good flame retardant property, maintains the relatively good thermal performance and mechanical performance, and has excellent comprehensive properties.

Description

technical field [0001] The invention relates to the technical field of flame retardant polymer materials, and more specifically, to a compound containing a phosphaazine group and a maleimide group, an epoxy resin material and a preparation method and application thereof. Background technique [0002] Epoxy resin material has excellent comprehensive properties and various varieties, so it has become one of the most widely used engineering plastics in modern industry, but its high flammability greatly limits its application in many fields , including the electrical and electronic industries. In the past few decades, halogen-containing flame-retardant epoxy resin materials have been developed to meet fire protection requirements. For example, bromine-containing flame-retardant epoxy resin materials are widely used in printed circuit boards and packaging of semiconductor chips and devices. However, in recent years, due to the successive promulgation of the Stockholm Convention,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/5397C08L63/00C07F9/6584
CPCC07F9/6584C08K5/5397C08L2201/02C08L2201/08C08L63/00
Inventor 罗琴琴孙玉林
Owner 北京国化新材料技术研究院有限公司
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