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High-molecular flame-retardant foam material and preparation method thereof

A technology of foaming materials and polymers, which is applied in the field of preparation of polymer flame-retardant foaming materials, can solve the problems of poor flame-retardant effect, poor thermal insulation effect, and good thermal insulation effect, and achieve good thermal insulation effect and flame-retardant performance. Good, strong effect

Inactive Publication Date: 2013-11-27
南通南京大学材料工程技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are good flame retardant and thermal insulation materials in the market, but there are some common problems, such as good thermal insulation effect, poor flame retardant effect, or good flame retardant performance but poor thermal insulation effect.

Method used

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  • High-molecular flame-retardant foam material and preparation method thereof
  • High-molecular flame-retardant foam material and preparation method thereof
  • High-molecular flame-retardant foam material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The urea-formaldehyde resin, magnesium oxide, and sorbitan monostearate in a weight ratio of 100:4:1 were mixed for 25 minutes at a stirring rate of 300 rpm at 40°C to prepare an organic flame-retardant adhesive. The organic flame-retardant adhesive and hydrochloric acid are stirred and mixed at 1000 rpm for 5 minutes and then added to the polystyrene foam particles with a particle size of 5 mm, and the polymer flame-retardant foam material is prepared by rapid hot pressing at 80°C. Polystyrene foam particles can be replaced by polypropylene foam particles.

Embodiment 2

[0028] Under the conditions of 80°C and 300 revolutions per minute, the epoxy resin, ammonium polyphosphate and sorbitan monostearate in a weight ratio of 80:2:1 were mixed for 20 minutes to prepare an organic flame-retardant adhesive . The organic flame-retardant adhesive and ethylenediamine were stirred and mixed at 500 rpm for 5 minutes, then added to the 0.5mm polystyrene foam particles, and the polymer flame-retardant hair was prepared by rapid hot pressing at 140°C. Bubble material.

Embodiment 3

[0030] The urea-formaldehyde resin, melamine and sorbitan monooleate in a weight ratio of 120:3:1 were mixed for 25 minutes under the condition of a stirring rate of 1200 rpm at 40°C to prepare an organic flame-retardant adhesive. The organic flame-retardant adhesive and hydrochloric acid are stirred and mixed at 1500 rpm for 5 minutes and then added to the polystyrene foam particles with a particle size of 1 mm, and the polymer flame-retardant foam material is prepared by rapid hot pressing at 180°C. Polystyrene foam particles can be replaced by polypropylene foam particles.

[0031] The preferred solution is that the flame retardant is two or more selected from the group consisting of aluminum oxide, magnesium oxide, zinc borate, melamine, ammonium polyphosphate, trimethyl phosphite and trimethyl phosphate A mixture of substances. Alumina, magnesia and ammonium polyphosphate are also mixed with good effects, especially when alumina or magnesia is mixed with trimethyl phosphite...

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Abstract

The invention provides a high-molecular flame-retardant foam material which is prepared by mixing the following components in parts by weight: 83.5 to 97.5 parts of polymer resin, 1.8 to 8.8 parts of flame retardant, 0.4 to 4.2 parts of surface active agent and 2 to 15 parts of polystyrene foam particles. The preparation method of the high-molecular flame-retardant foaming heat insulating material comprises the following steps: the polymer resin, the flame retardant and the surface active agent are mixed uniformly to prepare a high-molecular organic flame-retardant adhesive, then after being mixed, the high-molecular organic flame-retardant adhesive and a curing agent are added into the polystyrene foam particles, and the high-molecular flame-retardant foaming heat insulating material can be formed quickly through hot pressing. The high-molecular flame-retardant foam material provided by the invention synthesizes the characteristic of low heat conductivity coefficient of the foam particles and efficient flame-retardant effect of the high-molecular organic flame-retardant adhesive, really achives integration of flame retardance and heat preservation, and uses various flame-retardant compounds for mixing to form the flame retardant, and the prepared high-molecular flame-retardant foaming heat insulating material is better in flame retardant property, better in thermal insulation effect, and higher in oxygen indexes.

Description

Technical field [0001] The invention relates to the field of flame-retardant foamed thermal insulation materials, in particular to a preparation method of a polymer flame-retardant foamed material, which has broad application prospects in the fields of external wall external thermal insulation and vehicle thermal insulation. Background technique [0002] External wall insulation is an insulation method that puts the insulation layer outside the main wall material. Because it can reduce the influence of cold bridges, and protect the main wall material from much temperature deformation stress, it has become the most widely used insulation method. It is also the heat preservation practice strongly advocated by the country. Due to the occurrence of many building insulation fire incidents in recent years, people from all walks of life have thought about insulation and fire protection. The unprecedented fire protection performance of insulation materials has attracted great attention f...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08L63/00C08L61/24C08L61/28C08L25/06C08K3/22C08K5/524C08J9/00
Inventor 陆洪彬高扬之唐伟张秋香陈浩陆玉
Owner 南通南京大学材料工程技术研究院
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