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Foamed polystyrene resin with high flame retardancy and preparation method thereof

A foamed polystyrene, high flame retardant technology, applied in the field of building thermal insulation materials, can solve the problems to be improved, the flame retardant effect is not ideal, etc.

Inactive Publication Date: 2014-01-15
胥明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame-retardant effect of the current flame-retardant expanded polystyrene resin is not ideal, and the best flame-retardant expanded polystyrene resin material is Class B
[0003] Therefore, the current method for preparing flame-retardant expanded polystyrene resin still needs to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Preparation and Performance Testing of High Flame Retardant Expanded Polystyrene Resin

[0021]First, add 1 part by weight of sodium pyrosulfate, 0.5 parts by weight of calcium phosphate, 0.04 parts by weight of sodium dodecyl sulfonate and 240 parts by weight of deionized water in a reaction kettle at 70±1°C, and adjust the After heating up to make the above reagent fully dissolved, add flame retardant (0.1 weight part of hexabromocyclododecane, 0.03 weight part of antimony trioxide, 0.1 weight part of magnesium hydroxide, 0.05 weight part of red Phosphorus), 100 parts by weight of styrene monomer dissolved with 0.4 parts by weight of BPO and 0.9 parts by weight of graphite was added into the reactor, and then the temperature began to rise and finally kept at 90±1°C. After reacting for 3-5 hours, take a small amount of material from the reactor every 30 minutes and put it into a watch glass for observation to check its particle shape and hardness. When it ha...

Embodiment 2

[0026] Example 2: Preparation and Performance Testing of High Flame Retardant Expanded Polystyrene Resin

[0027] First, add 0.4 parts by weight of sodium pyrosulfate, 0.6 parts by weight of calcium phosphate, 0.035 parts by weight of sodium dodecyl sulfonate and 280 parts by weight of deionized water in a reaction kettle at 70±1°C, and adjust the After heating up to make the above reagent fully dissolved, add flame retardants (0.24 parts by weight of hexabromocyclododecane, 0.1 parts by weight of antimony trioxide, 0.3 parts by weight of magnesium hydroxide, 0.1 parts by weight of red Phosphorus), 100 parts by weight of styrene monomer dissolved with 0.6 parts by weight of BPO and 1.2 parts by weight of graphite was added to the reactor, and then the temperature began to rise and finally kept at 90±1°C. After reacting for 3-5 hours, take a small amount of material from the reactor every 30 minutes and put it into a watch glass for observation to check its particle shape and h...

Embodiment 3

[0032] Example 3: Preparation and Performance Testing of High Flame Retardant Expanded Polystyrene Resin

[0033] First, add 0.6 parts by weight of cellulose, 0.6 parts by weight of calcium phosphate, 0.045 parts by weight of sodium dodecyl sulfonate and 300 parts by weight of deionized water in a reaction kettle at 70±1°C to adjust the appropriate Stirring speed, heat up to fully dissolve the above reagents, add flame retardants (0.2 parts by weight of hexabromocyclododecane, 0.1 parts by weight of antimony trioxide, 0.15 parts by weight of magnesium hydroxide, 0.15 parts by weight of red phosphorus ), adding 100 parts by weight of styrene monomer dissolved with 0.5 parts by weight of BPO and 0.85 parts by weight of graphite into the reactor, then began to heat up and finally maintained at 90±1°C. After reacting for 3-5 hours, take a small amount of material from the reactor every 30 minutes and put it into a watch glass for observation to check its particle shape and hardnes...

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PUM

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Abstract

The invention relates to a foamed polystyrene resin with high flame retardancy and a preparation method thereof. The method for preparing the foamed polystyrene resin with high flame retardancy comprises the following steps of: in a reaction kettle at 69-71 DEG C, mixing and dissolving 0.3-1 weight parts of sodium pyrosulfate or cellulose, 0.25-0.6 weight parts of calcium phosphate, 0.02-0.05 weight parts of sodium dodecylbenzenesulfonate and 180-300 weight parts of deionized water to obtain a first mixture; adding a fire retardant and 100 weight parts of styrene monomers into the first mixture, and allowing the reaction to take place at 89-91 DEG C for 3-5 hours to obtain a second mixture; when the second mixture becomes hard, heating up to 95 DEG C and curing for 30 min to obtain polystyrene resin particles; and performing foaming treatment on the polystyrene resin particles to obtain foamed polystyrene resin with high flame retardancy. The foamed polystyrene resin with high flame retardancy, prepared by the method, has good flame retardancy, low thermal conductivity and high strength.

Description

technical field [0001] The invention relates to the technical field of building thermal insulation materials. Specifically, the present invention relates to a highly flame-retardant expanded polystyrene resin and a preparation method thereof. Background technique [0002] Expandable polystyrene (expandable polystyrene, EPS), also known as expanded polystyrene resin, is a foam material with excellent low density and thermal insulation properties first invented by BASF in the early 1940s. . Expanded polystyrene resin has a wide range of uses. Due to its high strength, light weight, excellent thermal insulation performance and high energy absorption capacity, it can be used as a variety of instruments, valuables, precision instruments, vegetables and fruits and aquatic products. and other packaging materials; and because of its excellent characteristics such as low thermal conductivity, low water absorption, good electrical insulation, sound insulation, moisture resistance, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F112/08C08K13/02C08K5/02C08K3/22C08K3/02C08K3/04C08L25/06C08J9/14
Inventor 胥明
Owner 胥明
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