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

A foam material, flame retardant and thermal insulation technology, which is applied in the field of flame retardant thermal insulation and environmentally friendly polymeric foam materials, can solve problems such as poor fire resistance and poor thermal insulation performance, and achieve long aging resistance, good environmental protection performance and good waterproof performance. Effect

Inactive Publication Date: 2015-01-28
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 performance
Inorganic thermal insulation materials have good fire performance, but poor thermal insulation performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0028] First put 200kg of 37% formaldehyde, 1.5g of polyvinyl alcohol 1788 and 20kg of glycerin into the reactor in turn, stir and raise the temperature to 40°C, adjust the pH to 4.0 with 30% formic acid, and the reaction time is 20 minutes, then add 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 ; Use ammonium chloride to adjust the pH to 5.0, then add calcium lignosulfonate to react at 80°C, then use a Tu-4 viscosity cup to measure the viscosity at 25°C, and the viscosity is 20-25 seconds as the end point; then adjust with 30% NaOH To pH = 7.5, add 10kg of urea and 5kg of thiourea, keep at 80°C for 30 minutes, then adjust to pH = 7.5 with 25% ammonia water, react at 60°C for 20 minutes, cool down to below 40°C and discharge;

[0029] Preparation of foaming agen...

Embodiment 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°C, adjust the pH to 4.0 with 30% formic acid, and the reaction time is 20 minutes, then add 70kg of Urea, react at 50°C for 40 minutes; then add 6kg 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 ; Use ammonium chloride to adjust to pH = 5.0, then add sodium lignosulfonate to react at 80°C, then use a Tu-4 viscosity cup to measure the viscosity at 25°C, and the viscosity is 20-25 seconds as the end point; then adjust with 30% NaOH To pH = 7.5, add 10kg of urea and 6kg of thiourea, keep at 80°C for 30 minutes, then adjust to pH = 7.5 with 25% ammonia water, react at 60°C for 20 minutes, cool down to below 40°C and discharge;

[0034] Preparation of foaming agent: ...

Embodiment 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°C, adjust the pH to 4.0 with 30% formic acid, and the reaction time is 20 minutes, 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 the pH to 5.0 with ammonium chloride, then add ammonium lignosulfonate and react at 80°C, then measure the viscosity with a Tu-4 viscosity cup at 25°C and the end point is 20-25 seconds; then adjust with 30% NaOH To pH = 7.5, add 14kg of urea and 8kg of thiourea, keep at 80°C for 30 minutes, then adjust to pH = 7.5 with 25% ammonia water, react at 60°C for 20 minutes, cool down to below 40°C and discharge;

[0039] Preparation of foaming agent: first add 45kg of ...

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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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Patent Type & Authority Patents(China)
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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