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Loop-line-shaped phosphazene epoxide resin and synthetic method thereof

A nitrile epoxy resin and phosphazene-shaped technology, which is applied in the field of epoxy resin and its synthesis, can solve the problems of unsatisfactory thermal properties and physical and mechanical properties, and achieve the effect of excellent flame retardancy

Inactive Publication Date: 2012-09-19
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of the molecular structure of the above materials, their thermal properties and physical and mechanical properties are still unsatisfactory.

Method used

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  • Loop-line-shaped phosphazene epoxide resin and synthetic method thereof
  • Loop-line-shaped phosphazene epoxide resin and synthetic method thereof
  • Loop-line-shaped phosphazene epoxide resin and synthetic method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0042] When the structure of R is C 6 H 4 C(CH 3 ) 2 C 6 H 4 The synthetic process route of the ring linear phosphazene epoxy resin CLPN-EP1 is as follows figure 1 shown.

[0043] The synthetic embodiment of CLPN-EP1 is as follows:

[0044]

[0045] n is an integer of 0-10.

[0046] In step 1, under the protection of nitrogen atmosphere, phenol is dissolved in tetrahydrofuran, then sodium hydride is added, and the reaction is carried out at room temperature for 2 hours to obtain a corresponding reaction mixture solution. The reaction mixture solution was added dropwise to a solution of hexachlorocyclotriphosphazene dissolved in tetrahydrofuran, wherein the molar ratio of phenol to hexachlorocyclotriphosphazene was 4.2:1, and the reaction was carried out at room temperature for 12 hours, and compound N was obtained after purification. 3 P 3 (OC 6 H 5 ) 4 Cl 2 . Wherein each mole of phenol is dissolved in 100 ml of tetrahydrofuran, and each mole of hexachloroc...

example 2

[0060] When the structure of R is C 6 H 4 CH 2 C 6 H 4 , the structural formula of the synthesized cyclic linear phosphazene epoxy resin CLPN-EP2 is:

[0061]

[0062] n is an integer between 0-10.

[0063] The synthetic embodiment of CLPN-EP2 is as follows:

[0064] In step 1, under the protection of argon atmosphere, phenol is dissolved in tetrahydrofuran and reacted with sodium hydride at room temperature for 2 hours to obtain a corresponding reaction mixture solution. The reaction mixture solution was added dropwise to a solution of hexachlorocyclotriphosphazene dissolved in tetrahydrofuran, wherein the molar ratio of phenol to hexachlorocyclotriphosphazene was 4.3:1, and the reaction was carried out at room temperature for 12 hours to obtain compound N after purification. 3 P 3 (OC 6 H 5 ) 4 Cl 2 . Wherein each mole of phenol is dissolved in 100 ml of tetrahydrofuran, and each mole of hexachlorocyclotriphosphazene is dissolved in 120 ml of tetrahydrofuran...

example 3

[0071] When the structure of R is C 6 H 4 SO 2 C 6 H 4, the structural formula of the synthesized cyclic linear phosphazene epoxy resin CLPN-EP3 is:

[0072]

[0073] n is an integer of 0-10.

[0074] The synthetic embodiment of CLPN-EP3 is as follows:

[0075] In step 1, under the protection of argon atmosphere, phenol is dissolved in tetrahydrofuran and reacted with sodium hydride at room temperature for 2 hours to obtain a corresponding reaction mixture solution. The reaction mixture solution was added dropwise to a solution of hexachlorocyclotriphosphazene dissolved in tetrahydrofuran, wherein the molar ratio of phenol to hexachlorocyclotriphosphazene was 4.1:1, and the reaction was carried out at room temperature for 13 hours to obtain compound N after purification. 3 P 3 (OC 6 H 5 ) 4 Cl 2 . Wherein each mole of phenol is dissolved in 100 ml of tetrahydrofuran, and each mole of hexachlorocyclotriphosphazene is dissolved in 120 ml of tetrahydrofuran.

[...

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Abstract

The invention discloses loop-line-shaped phosphazene epoxide resin and a synthetic method thereof and belongs to the technical field of flame-retarded resin. The resin structure is that under the inert gas protection, phenol is reacted with phosphonitrilic chloride trimer in the presence of an acid-binding agent, and 1, 1, 3, 5- tetraphenoxy-3, 5-dichlorocyclotriphosphazene (N3P3 (OC6H5)4C12) is obtained; HOROH is reacted with the N3P3 (OC6H5)4C12, two remaining helium atoms are substituted, and a compound N3P3 (OC6H5) 4 (OROH) 2 is obtained; and under the action of 28.43wt.% of sodium hydroxide aqueous solution and catalysts, the N3P3 (OC6H5) 4 (OROH) 2 is reacted with epoxy chloropropane, the epoxide resin is obtained, and the main chain of the epoxide resin contains a loop-line-shaped phosphazene structure. After the loop-line-shaped phosphazene epoxide resin and a curing agent are cured, the obtained thermosetting resin is good in heat resistance, thermal stability and fire resistance.

Description

technical field [0001] The invention relates to an epoxy resin with a ring linear phosphazene structure and a synthesis method thereof, belonging to the technical field of flame retardant resins. Background technique [0002] Epoxy resin is one of the most important functional polymer materials, due to its excellent high temperature resistance, chemical solvent corrosion resistance, low moisture absorption, and good mechanical properties, dielectric properties, stability and good for most materials. It is widely used in advanced composite materials, surface coatings, semiconductor packaging, copper clad laminates and printed circuit board manufacturing. [0003] When epoxy resins are used in high-tech fields such as electrical, electronic and microelectronics, they are usually required to have good flame retardancy to reduce or avoid fire hazards; at the same time, related epoxy resins are also required to have high resistance to Thermal and thermal stability. The introduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/06C07F9/6593
Inventor 汪晓东柏永伟武德珍
Owner BEIJING UNIV OF CHEM TECH
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