Anti-flaming thermal-insulation environmentally-friendly polymeric foaming material and method for producing the same

A foaming material, flame retardant and thermal insulation technology, applied in the field of flame retardant thermal insulation polymer foaming material, can solve the problems of poor thermal insulation performance, poor fireproof performance, etc., and achieve good environmental protection performance, long aging resistance, and stable void structure Effect

Inactive Publication Date: 2012-06-27
王喆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic thermal insulation materials have good thermal insulation performance, but poor fireproof performan

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1

[0027] Preparation of urea-formaldehyde resin foam adhesive:

[0028] First, 200kg of 37% formaldehyde, 1.5g of polyvinyl alcohol 1788 and 20kg of glycerin were put into the reactor in turn, stirred and heated to 40℃, adjusted to pH=4.0 with 30% formic acid, and the reaction time was 20 minutes, and then added 70kg of Urea, react at 50°C for 40 minutes; then add 5kg of hexamethylenetetramine, adjust to pH=6.5 with 30% NaOH, add 20kg of urea, heat up to 90°C within 30 minutes, and react for 30-50 minutes ; Adjust the pH to 5.0 with ammonium chloride, then add calcium lignosulfonate to react at 80°C, that is, use a Tu-4 viscosity cup to measure the viscosity at 25°C as the end point; then adjust with 30% NaOH To pH=7.5, add 10kg urea and 5kg thiourea and keep at 80℃ for 30 minutes, then adjust to pH=7.5 with 25% ammonia water and react at 60℃ for 20 minutes, then cool to below 40℃ and discharge;

[0029] Preparation of foaming agent: first add 46kg of water int...

Example Embodiment

[0031] Example 2

[0032] Preparation of urea-formaldehyde resin foam adhesive:

[0033] First put 180kg of 37% formaldehyde, 1.2g of polyvinyl alcohol 2088 and 17kg of glycerin into the reactor in turn, stir and raise the temperature to 40℃, adjust to pH=4.0 with 30% formic acid, reaction time for 20 minutes, and then add 70kg of Urea, react at 50℃ for 40 minutes; then add 6kg of hexamethylenetetramine, then adjust to pH=6.5 with 30% NaOH, add 20kg of urea, heat up to 90℃ within 30 minutes, and react for 30-50 minutes ; Adjust to pH=5.0 with ammonium chloride, then add sodium lignosulfonate to react at 80°C, that is, use a Tu-4 viscosity cup to measure the viscosity at 25°C as the end point; then adjust with 30% NaOH To pH=7.5, add 10kg urea and 6kg thiourea and keep it at 80℃ for 30 minutes, then adjust to pH=7.5 with 25% ammonia water and react at 60℃ for 20 minutes, then cool to below 40℃ and discharge;

[0034] Preparation of foaming agent: first add 47kg of water into th...

Example Embodiment

[0036] Example 3

[0037] Preparation of urea-formaldehyde resin foam adhesive:

[0038] First put 220kg of 37% formaldehyde, 1.7g of polyvinyl alcohol 1799 and 23kg of glycerin into the reactor in turn, stir and raise the temperature to 40℃, adjust to pH=4.0 with 30% formic acid, reaction time for 20 minutes, and then add 98kg of Urea, react at 50°C for 40 minutes; then add 7kg of hexamethylenetetramine, adjust to pH=6.5 with 30% NaOH, add 28kg of urea, heat up to 90°C within 30 minutes, and react for 30-50 minutes ; Adjust to pH=5.0 with ammonium chloride, then add ammonium lignosulfonate to react at 80°C, that is, at 25°C, use a Tu-4 viscosity cup to measure the viscosity for 20-25 seconds as the end point; then adjust with 30% NaOH To pH=7.5, add 14kg of urea and 8kg of thiourea and keep at 80℃ for 30 minutes, then adjust to pH=7.5 with 25% ammonia water and react at 60℃ for 20 minutes, then cool to below 40℃ and discharge;

[0039] Preparation of foaming agent: first put ...

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PUM

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Abstract

The invention discloses an anti-flaming thermal-insulation environmentally friendly polymeric foaming material and a method for producing the material. The method comprises the following steps: preparing a urea resin foam adhesive by successively adding 37 % of formaldehyde, polyvinyl alcohol and glycerin in a reaction kettle and stirring to heat up and then adding urea, hexamethylene tetramine, stabilizer and thiourea, preparing a foaming agent by firstly adding water in a stirring tank, successively adding nekal and nonylphenol polyoxylethylene ether with stirring, heating up for completely dissolving, and then adding phosphoric acid, glycerin and sodium phosphate, uniformly stirring until completely dissolving, and discharging and packaging, and preparing a foamed product by taking the urea resin adhesive, urea and the foaming agent, mixing and stirring uniformly, putting in a foaming machine to foam, and carrying out foaming, extrusion molding, drying and packaging. The invention can be widely applied in thermal insulation of building facilities, thermal insulation of venue decoration, shock absorption, replacement of benzene plate flexible package without anti-flaming property, and the like.

Description

technical field [0001] The invention belongs to the technical field of macromolecule chemical industry, and in particular relates to a flame-retardant, heat-preserving and environment-friendly polymer foaming material and a production method thereof. Background technique [0002] The current foam insulation materials mostly use polyurethane, phenolic resin, and urea-formaldehyde resin foam insulation materials. With the progress of polymer resin synthesis technology and plastic processing and modification technology, many new foam insulation materials have appeared in foam insulation materials. Because of its light weight, high specific strength, high specific modulus, heat insulation, insulation, sound insulation and shock absorption, and simple molding process, it is widely used in construction and packaging industries. However, currently used polyurethane foam, phenolic foam, styrene and other building material foam plastics have disadvantages such as high cost, volatile ...

Claims

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Application Information

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IPC IPC(8): C08L61/24C08L97/02C08K3/26C08K3/34C08J9/04C08G12/12
Inventor 王喆王学谦赵涛吴吉恒
Owner 王喆
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