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Ammonium polyphosphate microcapsule, polyurethane elastomer composite material and preparation method thereof

A technology of polyurethane elastomer and ammonium polyphosphate is applied in the field of polyurethane elastomer composite material and its preparation, and achieves the effects of mild reaction conditions, improved flexibility and hydrophobicity, and uniform shell layer

Inactive Publication Date: 2019-10-29
CHINESE PEOPLES ARMED POLICE FORCE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of the existing flame-retardant polyurethane elastomers, and provide a kind of ammonium polyphosphate microcapsules, polyurethane elastomer composite materials and preparation methods thereof, which can efficiently flame-retardant and have excellent mechanical properties

Method used

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  • Ammonium polyphosphate microcapsule, polyurethane elastomer composite material and preparation method thereof

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Effect test

Embodiment 1

[0034] The preparation method of polyurethane elastomer composite material of the present invention comprises the following steps:

[0035] (1) Preparation of ammonium polyphosphate microcapsules

[0036] Add 100g of boron-containing resin bisphenol A boron phenolic resin into 1150g of ethanol, fully stir and dissolve to make 8% bisphenol A boron phenolic resin solution; then add 1000g ammonium polyphosphate (APP) and 30g OP-10 emulsifier, Stir until the emulsification is uniform; then dropwise add 150g of 6% ethylenediamine ethanol solution to carry out cross-linking reaction, continue to react for 1h after the dropwise addition is completed, filter, wash, dry and grind in sequence after the reaction, and finally heat-treat in an oven at 180°C for 2h, The core-shell ammonium polyphosphate microcapsules were prepared with bisphenol A boron phenolic resin as the shell material and ammonium polyphosphate (APP) as the core material.

[0037] (2) Preparation of polyurethane elast...

Embodiment 2

[0040] (1) Preparation of ammonium polyphosphate microcapsules

[0041] Add 120g of boron-containing resin tung oil phenolic boron phenolic resin into 2880g propanol, fully stir and dissolve to make 4% tung oil phenolic boron phenolic resin solution; add 1000g ammonium polyphosphate (APP) and 30g OP-10 emulsifier subsequently, normal temperature Stir until the emulsification is uniform; then start to drop 180g of hexamethylenetetramine ethanol chloroform mixture with a concentration of 8.3% to carry out cross-linking reaction, continue to react for 1h after the addition is completed, and filter, wash, dry and grind in sequence after the reaction , and finally heat-treated in an oven at 160°C for 3 hours to prepare core-shell ammonium polyphosphate microcapsules with tung oil phenolic boron phenolic resin as the shell material and ammonium polyphosphate (APP) as the core material.

[0042] (2) Preparation of polyurethane elastomer composite materials

[0043] With 89g of polyu...

example 3

[0045] (1) Preparation of ammonium polyphosphate microcapsules

[0046] Add 80g of boron-containing resin tung oil phenolic boron phenolic resin into 3920g ethanol, fully stir and dissolve to make 2% tung oil phenolic boron phenolic resin solution, add 1000g ammonium polyphosphate (APP) and 30g OP-10 emulsifier subsequently, normal temperature Stir until emulsified evenly. Then start to drop 120g concentration of 6% hexamethylenetetramine ethanol chloroform mixed liquid solution to carry out cross-linking reaction, continue to react for 1h after the dropwise addition is completed, then add 10g of inorganic hydroxide nano-silicon hydroxide to continue to react for 0.5h , after the reaction is completed, filter, wash, dry and grind in sequence. Finally, heat treatment at 200° C. for 2 hours in an oven to prepare core-shell ammonium polyphosphate microcapsules with silicon-boron composite as the shell material and ammonium polyphosphate (APP) as the core material. The above-men...

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Abstract

The invention relates to a preparation method of an ammonium polyphosphate microcapsule, a polyurethane elastomer composite material and a preparation method of the composite material. The preparationmethod of the ammonium polyphosphate microcapsule comprises the following steps: adding ammonium polyphosphate and an OP-10 emulsifier into a boron-containing resin solution, and performing stirringat normal temperature until uniform emulsification is reached; dropwise adding an organic amine solution, and performing a cross-linking reaction on organic amine and boron resin; sequentially performing filtration, washing, drying and grinding after the reaction ends; and performing high-temperature heat treatment on the obtained ground product to obtain the core-shell type ammonium polyphosphatemicrocapsule. The flame-retardant polyurethane elastomer composite material prepared by using the above microcapsule flame retardant prepared through the preparation method of the ammonium polyphosphate microcapsule has the advantage of high flame resistance and excellent mechanical performances, and the microcapsule has the advantages of simple preparation process, low cost, and adaption to demands of fire safety and engineering application.

Description

technical field [0001] The invention relates to a flame-retardant material and a preparation method thereof, in particular to a polyurethane elastomer composite material and a preparation method thereof. Background technique [0002] Polyurethane elastomer is a kind of polyurethane material family, also known as polyurethane rubber, is a block polymer in which soft segments and hard segments are alternately arranged to form repeating structural units. Due to the different polarities of the hard segment and the soft segment, polyurethane elastomers are prone to separation, forming soft segment microphase domains and hard segment microphase domains. The hard segment with strong polarity and a large number of hydrogen bonds acts as a reinforcing filler inside the soft segment, so that the polyurethane elastomer has the characteristics of high strength and high elasticity. Due to its superior performance and wide variety, polyurethane elastomers are widely used in many fields s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/10C08K3/32C08L75/04
CPCC08K3/32C08K9/10C08K2003/323C08L75/04
Inventor 高维英李建华赵敏
Owner CHINESE PEOPLES ARMED POLICE FORCE ACAD
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