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A preparation method and application of polyhydric synergistic flame retardant polymer polyol for preparing polyurethane

A synergistic flame retardant and polyol technology, applied in the fields of polymer chemistry, building insulation materials, and reactive flame retardants, can solve the problems that the flame retardant ability cannot meet the use requirements, etc., and achieve easy operation, mild preparation reaction, and low raw material cost low effect

Inactive Publication Date: 2017-04-19
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The flame retardant ability of polyurethane insulation materials prepared by a single flame retardant element often cannot meet the requirements of use. For this reason, research and development of reactive polymer flame retardants with multiple synergistic flame retardant effects and industrial application value, for flame retardant polyurethane technology The development of the field is of great significance

Method used

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  • A preparation method and application of polyhydric synergistic flame retardant polymer polyol for preparing polyurethane

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Example 1 A preparation method of polyhydric synergistic flame retardant polymer polyol for preparing polyurethane

[0041] Add 130g of phosphorus pentoxide to the reactor, start stirring, add 23g of water within 4min, raise the temperature, keep the temperature at 70°C for 30min; add 390g of propylene oxide, catalyst tetraethylammonium bromide 2.3 within 10min g, reflux reaction for 90 minutes; add 7g of isocyanuric acid and 7g of melamine, raise the reaction temperature to 130°C, and keep warm for 60 minutes; add 120g of tetrabromophthalic anhydride, keep warm for 150min; cool, discharge; the product is a reddish-brown transparent liquid , the acid value is 5.4 mgKOH / g, and the viscosity is 8513 mPa.s.

Embodiment 2

[0042] Example 2 A preparation method of polyhydric synergistic flame retardant polymer polyol for preparing polyurethane

[0043] Add 130g of phosphorus pentoxide to the reactor, start stirring, add 30g of water within 6min, raise the temperature, keep the temperature at 80°C for 60min; add 500g of epichlorohydrin, catalyst benzyltriethyl chloride within 15min Ammonium chloride 2.6g, reflux reaction for 60 minutes; add 12g of isocyanuric acid and melamine 12g, increase the reaction temperature to 140°C, keep the reaction for 60 minutes; add 150 of tetrabromophthalic anhydride, keep the reaction for 120 minutes; cool, discharge; the color is reddish brown Transparent liquid with an acid value of 3.1mgKOH / g and a viscosity of 8690 mPa.s.

Embodiment 3

[0044] Example 3 A method for preparing a multi-component synergistic flame-retardant polymer polyol for preparing polyurethane

[0045] Add 130g of phosphorus pentoxide to the reactor, start stirring, add 26g of water within 5min, raise the temperature, keep the temperature at 75°C for 45min; add 440g of epichlorohydrin, catalyst benzyltrimethyl chloride within 13min Ammonium chloride 2.5g, reflux reaction for 75 minutes; add 9.5g of isocyanuric acid and 9g of melamine, increase the reaction temperature to 135°C, keep the reaction for 60 minutes; add 130 of tetrabromophthalic anhydride, keep the reaction for 135 minutes; cool, discharge; It is a reddish brown transparent liquid with an acid value of 5.4 mgKOH / g and a viscosity of 9725 mPa.s.

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Abstract

The invention discloses a preparation method for preparing multi-element synergic flame-retarding polymer polyalcohol of polyurethane and application and belongs to the technical field of high polymer chemistry, reaction type fire retardants and building heat-preservation materials. The multi-element synergic flame-retarding polyalcohol is prepared by taking phosphorus pentoxide, water, epoxy chloropropane, isocyanuric acid, melamine and tetrabromophthalic anhydride to react. The multi-element synergic flame-retarding polymer polyalcohol is used for preparing a flame-retarding polyurethane foam material.

Description

technical field [0001] The present invention relates to a preparation method and application of a multi-component synergistic flame-retardant polymer polyol for preparing polyurethane, in particular to a preparation method for a flame-retardant polymer polyol used to prepare flame-retardant polyurethane foam, which belongs to the macromolecule Chemistry, reactive flame retardants, and building insulation materials. Background technique [0002] Polyurethane foam is a low-density microporous urethane polymer material produced by the reaction of polyester or polyether polyols with isocyanate. It has light weight, low water absorption, good heat insulation, strong weather resistance, and low thermal conductivity. As well as good mechanical properties and chemical corrosion resistance, and has strong bond strength with various materials, it is widely used as thermal insulation materials for petrochemical pipelines, refrigeration equipment, transportation equipment and buildings....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/26C08G18/50C08G18/76C08G18/18C08G101/00
Inventor 王志玲张书香刘志连崔玉杨小风郑鲁沂
Owner UNIV OF JINAN