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Polyphosphazene microsphere-based phenolic resin molding plastic additive and preparation method thereof

A phenolic resin and molding compound technology, which is applied in the field of phenolic resin molding compound additives based on polyphosphazene microspheres and phenolic resin molding compound additives, can solve problems such as poor compatibility and easy agglomeration of microspheres, and achieve increased compatibility. properties and adhesion, improved mechanical properties, improved heat resistance and flame retardancy

Active Publication Date: 2016-03-16
JIANGNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such rigid polyphosphazene microspheres are poorly compatible with epoxy resins, leading to easy agglomeration of the microspheres

Method used

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  • Polyphosphazene microsphere-based phenolic resin molding plastic additive and preparation method thereof
  • Polyphosphazene microsphere-based phenolic resin molding plastic additive and preparation method thereof
  • Polyphosphazene microsphere-based phenolic resin molding plastic additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 0.2g of hexachlorocyclotriphosphazene and 0.37g of 4,4'-dihydroxybenzophenone, put them in a 250mL round bottom flask, add 100mL of acetonitrile solvent, ultrasonically in a water bath for about 5min until completely dissolved, then add 1mL of triethyl Amines were reacted with ultrasound (200W, 40kHz) in a water bath at 50°C for 5 hours. After the reaction, the solvent was removed by centrifugation, and the precipitate was alternately washed three times with deionized water and acetone, and then the product was dried in a vacuum oven at 45° C. for 24 hours to obtain a white solid powder.

[0025] Put the obtained microspheres into a 250mL round-bottomed flask with a stirring bar, add 100mL of methanol, ultrasonicate the water bath for about 5min until the white powder is uniformly dispersed, then weigh 2g of sodium borohydride, add in batches, and react at room temperature for 24h . After the reaction, the solvent was removed by centrifugation, the precipitate wa...

Embodiment 2

[0029] Weigh 0.2g of hexachlorocyclotriphosphazene and 0.37g of 4,4'-dihydroxybenzophenone, put them in a 250mL round bottom flask, add 100mL of acetone solvent, ultrasonicate in a water bath for about 5min until completely dissolved, then add 1mL of triethyl Amines were reacted with ultrasound (200W, 40kHz) in a water bath at 50°C for 5 hours. After the reaction, the solvent was removed by centrifugation, and the precipitate was alternately washed three times with deionized water and acetone, and then the product was dried in a vacuum oven at 45° C. for 24 hours to obtain a white solid powder.

[0030] Put the obtained microspheres into a 250mL round-bottomed flask with a stirring bar, add 100mL of methanol, ultrasonicate the water bath for about 5min until the white powder is uniformly dispersed, then weigh 2g of sodium borohydride, add in batches, and react at room temperature for 24h . After the reaction, the solvent was removed by centrifugation, the precipitate was wash...

Embodiment 3

[0034] Weigh 0.2g of hexachlorocyclotriphosphazene and 0.37g of 4,4'-dihydroxybenzophenone, put them in a 250mL round bottom flask, add 100mL of acetonitrile solvent, ultrasonicate in a water bath for about 5min until completely dissolved, then add 1mL of tributyl Amines were reacted with ultrasound (200W, 40kHz) in a water bath at 50°C for 5 hours. After the reaction, the solvent was removed by centrifugation, and the precipitate was alternately washed three times with deionized water and acetone, and then the product was dried in a vacuum oven at 45° C. for 24 hours to obtain a white solid powder.

[0035] Put the obtained microspheres into a 250mL round-bottomed flask with a stirring bar, add 100mL of methanol, ultrasonicate the water bath for about 5min until the white powder is uniformly dispersed, then weigh 2g of sodium borohydride, add in batches, and react at room temperature for 24h . After the reaction, the solvent was removed by centrifugation, the precipitate was...

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Abstract

The invention provides a polyphosphazene microsphere-based phenolic resin molding plastic additive and a preparation method thereof, and belongs to the technical field of preparation of phenolic resin molding plastic additivs. The preparation method of the phenolic resin molding plastic additive comprises the following steps: 1, carrying out a condensation polymerization reaction on phosphonitrilic chloride trimer and 4,4'-dihydroxybenzophenone in an organic solvent in the presence of an acid binding agent to obtain a solution; 2, separating a solid product from the solution to obtain microspheres; 3, reducing the microspheres under certain conditions to obtain microspheres with surfaces containing hydroxyl groups; and 4, grafting the surfaces of the microspheres with polycaprolactone under certain conditions to modify the microspheres in order to obtain microspheres with polycaprolactone grafted surfaces. The phenolic resin molding plastic additive has a highly crosslinked polyphosphazene and a smooth polycaprolactone shell, has strong bonding force to the phenolic resin matrix, and can improve the impact strength, the tensile strength, the heat resistance and the flame resistance of phenolic resin molding plastics.

Description

technical field [0001] The invention relates to a phenolic resin molding compound additive, in particular to a phenolic resin molding compound additive based on polyphosphazene microspheres. The present invention further relates to a preparation method of the phenolic resin molding compound additive. The invention belongs to the technical field of preparation of additives for phenolic resin molding compounds. Background technique [0002] Aldehyde resin is the first synthetic resin to be industrialized in the world. Since its first industrial production in 1910, it has a history of nearly 100 years. Phenolic resin has the advantages of easy to obtain raw materials, low price, simple production process and equipment, and its products have relatively excellent mechanical properties, heat resistance, cold resistance, electrical insulation, dimensional stability, molding processability and flame retardancy , so phenolic resin has become an indispensable material in the industr...

Claims

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Application Information

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IPC IPC(8): C08G79/04C08G63/06C08L61/06C08L85/02C08K13/04C08K7/14C08K3/22C08K3/38
CPCC08G63/06C08G79/04C08L61/06C08L2201/02C08L2201/08C08L85/02C08K13/04C08K7/14C08K2003/2224C08K2003/387C08K2003/2227
Inventor 魏玮叶苇韬翁根元费小马刘娜刘晓亚
Owner JIANGNAN UNIV
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