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Hybridization catalyst for curing cyanate ester and preparing method thereof

A kind of technology of cyanate ester and catalyst, applied in graphene oxide-manganese-based metal-organic framework hybrid material and preparation field thereof

Active Publication Date: 2015-03-25
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its catalytic effect on CE is far less than that of transition metal organic compounds

Method used

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  • Hybridization catalyst for curing cyanate ester and preparing method thereof
  • Hybridization catalyst for curing cyanate ester and preparing method thereof
  • Hybridization catalyst for curing cyanate ester and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Add 1.1g of potassium hydroxide, 0.68g of imidazole, 2.64g of 4,4’-dicarboxydiphenyl ether and 0.18g of graphene oxide into 70mL of deionized water, and ultrasonically disperse at 60°C for 30min to obtain solution A.

[0031] Solution B was obtained by dissolving 2.45 g of manganese acetate tetrahydrate in 10 mL of deionized water.

[0032] Add solution A dropwise to solution B, stir and react at 75°C for 24 hours, filter, wash and dry to obtain a graphene oxide-manganese-based metal-organic framework hybrid catalyst, in which graphene oxide and manganese-based metal-organic framework The mass fractions of framework materials are 5wt% and 95wt%, respectively. The X-ray diffraction figure of this catalyst, the infrared spectrum figure, the scanning electron microscope figure of magnification 5,000 times refer to appendix respectively figure 1 , 2 and 3.

Embodiment 2

[0064] Add 1.1g of potassium hydroxide, 0.66g of 2-methylimidazole, 2.53g of 4,4'-dicarboxydiphenyl ether, and 0.034g of graphene oxide into 65mL of deionized water, and ultrasonically disperse at 60°C for 33 minutes to obtain solution A ;Dissolve 2.46g manganese acetate tetrahydrate in 15mL deionized water to obtain solution B; then add solution A dropwise to solution B, stir and react at 80°C for 20h, filter with suction, wash, and dry to obtain oxidized Graphene-manganese-based metal-organic framework hybrid catalyst, wherein the mass fractions of graphene oxide and manganese-based metal-organic framework materials are 1wt% and 99wt%, respectively.

Embodiment 3

[0066] Add 1.1g of potassium hydroxide, 0.69g of imidazole, 2.55g of 4,4'-dicarboxydiphenyl ether, and 0.15g of graphene oxide into 75mL of deionized water, and ultrasonically disperse at 58°C for 35 minutes to obtain solution A; Dissolve manganese acetate tetrahydrate in 5mL deionized water to obtain solution B; then add solution A dropwise to solution B, stir and react at 74°C for 25h, filter with suction, wash, and dry to obtain graphene oxide-manganese Based metal-organic framework hybrid catalyst, wherein the mass fractions of graphene oxide and manganese-based metal-organic framework materials are 4wt% and 96wt%, respectively.

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Abstract

The invention discloses a hybridization catalyst for curing cyanate ester and a preparing method of the hybridization catalyst. The prepared hybridization catalyst is a hybridization material composed of oxidized graphene and a manganese base metal organic skeleton. The manganese base metal organic skeleton is formed by manganous ions and organic ligand through the coordinate bond combination effect. The preparing method for the hybridization catalyst comprises the steps that oxidized graphene, potassium hydroxide, an imidazole compound and the organic ligand are dissolved into deionized water, and dispersed in an ultrasonic mode to form mixed liquid; the obtained mixed liquid are slowly dripped into a manganous acetate tetrahy water solution, and reacts for 20-25 hours under the condition that the temperature ranges from 70 DEG C to 80 DEG C; a product is filtered, washed and dried to obtain the oxidized graphene and manganese base metal organic skeleton hybridization material which is used as a hybridization catalyst for curing the cyanate ester. The source of raw materials of the hybridization catalyst is wide, and the preparing method has the advantages of being simple in process and easy to control.

Description

technical field [0001] The invention belongs to the technical field of hybrid materials and their preparation, and in particular relates to a graphene oxide-manganese-based metal-organic framework hybrid material used for cyanate ester curing catalysis and a preparation method thereof. Background technique [0002] Cyanate ester (CE) resin is a kind of high-performance resin developed in the 1980s. It has excellent comprehensive properties, such as outstanding electrical properties, high mechanical properties and good processability. Therefore, it is used in electronic information, insulation Fields such as electrical and aerospace show great application prospects. However, with the rapid development of industry, more requirements are put forward for CE resins, and good flame retardancy has become a new requirement, and most organic polymers do not have good flame retardancy. In addition, CE has a high curing temperature (generally exceeding 220°C), which often leads to lar...

Claims

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Application Information

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IPC IPC(8): C08G73/06
Inventor 梁国正王宏顾嫒娟袁莉
Owner SUZHOU UNIV
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