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High-flame-retardant low-smoke-density polystyrene foam compound heat insulating material and preparation method thereof

A polystyrene foam, thermal insulation technology, applied in the direction of fireproof coatings, coatings, etc., can solve the problems of poor processability, low smoke density, easy pulverization, etc., achieve good compatibility, solve flammable, disperse Uniform and stable effect

Active Publication Date: 2012-03-28
INST OF PROCESS ENG CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Phenolic foamed plastics can be used for a long time at 150°C, much higher than the use temperature of polystyrene, and have high heat insulation performance, flame retardancy, carbonization in case of fire, self-extinguishing when leaving fire, and low smoke density (<3% = and other excellent properties, it is an important flame retardant and smoke suppression material, but the disadvantages of poor mechanical properties and easy pulverization of phenolic resin foam lead to poor processing performance, which limits the large-scale application in building insulation materials

Method used

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  • High-flame-retardant low-smoke-density polystyrene foam compound heat insulating material and preparation method thereof
  • High-flame-retardant low-smoke-density polystyrene foam compound heat insulating material and preparation method thereof
  • High-flame-retardant low-smoke-density polystyrene foam compound heat insulating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] With 100 parts of resole phenolic resin as the base material, 4 parts of silicone DC-193 surfactant, 8 parts of n-pentane foaming agent, and 10 parts of expandable graphite (125 mesh) were added under mechanical stirring at 1400 rpm. and continue to stir until uniformly dispersed; after that, add 8 parts of curing agent and stir evenly to obtain the flame-retardant phenolic-based coating for subsequent use; measure 10L pre-foamed particles, and add 268g of the above-mentioned flame-retardant phenolic under the mechanical stirring of the rotating speed of 800rpm The coating is then continuously stirred until the coating is uniform, wherein the mass ratio of the base material of polystyrene foam particles and the phenolic polymer-based coating is 1:1.7. The obtained mixture is transferred into a hot-pressing mold, the mold is closed, hot steam is introduced, the pressure is increased to 0.05MPa, and the pressure is kept for 40 seconds, and then the pressure is released. A...

Embodiment 2

[0053] With 100 parts of resole phenolic resin as the base material, 5 parts of silicone DC-193 surfactant, 10 parts of n-pentane foaming agent, and 5 parts of expandable graphite (125 mesh) were added under mechanical stirring at 1600 rpm. and continue to stir until uniformly dispersed; after that, add 10 parts of curing agent and stir evenly to obtain a flame-retardant phenolic-based coating for subsequent use; measure 10L pre-foamed particles, and add 204g of the above-mentioned flame-retardant phenolic under mechanical stirring at a speed of 900rpm The coating is then continuously stirred until the coating is uniform, wherein the mass ratio of the base material of polystyrene foam particles and the phenolic polymer-based coating is 1:1.3. The obtained mixture was transferred to a hot-pressing mold, the mold was closed, hot steam was fed in, the pressure was increased to 0.06MPa, and the pressure was kept for 45 seconds, and then the pressure was released. After cooling for...

Embodiment 3

[0055] With 100 parts of resole phenolic resin as the base material, 3 parts of silicone DC-193 surfactant, 10 parts of n-pentane foaming agent, and 15 parts of expandable graphite (125 mesh) were added under mechanical stirring at a speed of 1600 rpm. and continue to stir until uniformly dispersed; after that, add 10 parts of curing agent and stir evenly to obtain a flame-retardant phenolic-based coating for subsequent use; measure 10L pre-foamed particles, and add 345g of the above-mentioned flame-retardant phenolic under mechanical stirring at a speed of 900rpm The coating is then continuously stirred until the coating is uniform, wherein the mass ratio of the base material of polystyrene foam particles and the phenolic polymer-based coating is 1:2.2. The obtained mixture was transferred to a hot-pressing mold, the mold was closed, hot steam was introduced, the pressure was increased to 0.04MPa, and the pressure was kept for 45 seconds, and then the pressure was released. A...

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Abstract

The invention relates to the field of preparation of heat insulating materials, in particular to a high-flame-retardant low-smoke-density polystyrene foam compound heat insulating material and a preparation method thereof. The compound heat insulating material comprises a polystyrene foam particle substrate and a polymer-based coating into which flame-retardant functional components are dispersed, wherein the polymer-based coating into which the flame-retardant functional components are dispersed comprises phenolic resin and expandable graphite, or comprises phenolic resin, the expandable graphite and capsule red phosphorus; and the mass ratio of the polystyrene foam particle substrate to the polymer-based coating is 1:1.3-2.2. The heat insulating material prepared with the method has good flame retardant and smoke suppression effects, and has the characteristics of no melting drop in case of strong fire, difficulty in combusting and low fuming; and the defects of flammability, melting drop, dense smoke and the like existing in the conventional polystyrene foam heat insulating material are overcome effectively.

Description

technical field [0001] The invention relates to the field of heat preservation material preparation, in particular, the invention relates to a polystyrene foam composite heat insulation material with high flame retardancy and low smoke density and a preparation method thereof. Background technique [0002] Polystyrene foam material is formed by heating expandable polystyrene masterbatch to form foam beads with rigid closed-cell structure. After aging and drying, hot steam molding or extrusion molding is formed to form various polystyrene foam materials. Polystyrene foam material has the advantages of low specific gravity, good water resistance, and excellent heat insulation and sound insulation performance. It has been widely used in energy-saving building materials, packaging materials, refrigeration and other industries. However, as a polymer material, polystyrene foam has the biggest disadvantages of being flammable and not fireproof, and emitting unpleasant toxic smoke w...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L61/10C08K13/06C08K7/24C08K3/04C08K9/10C08K3/02C09D161/10C09D5/18C09D7/12
Inventor 陈运法武晓峰赵峰叶军
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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