Polystyrene syntactic foam and preparation method thereof

A composite foam and polystyrene foam technology, which is applied in the field of flame retardant materials, can solve difficult problems such as polystyrene foam dripping, and achieve the effects of solving burning dripping, high flame retardancy, and excellent performance

Inactive Publication Date: 2014-01-01
林百川
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods all greatly improve the flammability of polystyrene foam and improve the fire safety performance, but it is difficult to solve the dripping problem of polystyrene foam

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of curable flame retardant adhesive: take 100 parts of urea-formaldehyde modified phenolic resin as the base material, add 50 parts of expanded vermiculite and 10 parts of ammonium octamolybdate under stirring, stir well and set aside;

[0036] Preparation of curing agent: Take 40 parts of p-toluenesulfonic acid, 30 parts of sulfuric acid, 10 parts of phosphoric acid, and 20 parts of water, stir and dissolve for later use;

[0037] Uniform coating of polystyrene foam particles: Take 10L of polystyrene foam particle base material (density 16g / L), add 260g of the above-mentioned curable flame-retardant glue, stir evenly, add 30g of the above-mentioned curing agent, and continue stirring until Obtain uniformly coated polystyrene foam particles;

[0038] Molding: Add the above-mentioned polystyrene foam particles uniformly coated with curable flame-retardant adhesive into the steam hot-pressing mold, close the mold, feed high-pressure steam with a pressure of 0....

Embodiment 2

[0040] Preparation of curable flame retardant adhesive: take 100 parts of melamine modified phenolic resin as the base material, add 80 parts of expanded graphite and 10 parts of aluminum hydroxide under stirring, stir well and set aside;

[0041] Preparation of curing agent: take 50 parts of benzenesulfonic acid, 20 parts of sulfuric acid, and 30 parts of water, stir and dissolve for later use;

[0042] Uniform coating of polystyrene foam particles: Take 10L of polystyrene foam particle base material (16g / L), add 380g of the above-mentioned curable flame-retardant adhesive, stir evenly, add 60g of the above-mentioned curing agent, and continue stirring until a uniform Coated polystyrene foam particles;

[0043] Molding: Add the above-mentioned polystyrene foam particles evenly coated with curable flame-retardant adhesive into the steam hot-pressing mold, close the mold, feed high-pressure steam with a pressure of 0.05MPa, keep the pressure for 37s, and release the pressure ,...

Embodiment 3

[0045] Preparation of curable flame retardant adhesive: take 100 parts of furan modified phenolic resin as the base material, add 10 parts of hexabromocyclododecane and 10 parts of ferric oxide under stirring, stir well and set aside;

[0046] Preparation of curing agent: take 50 parts of p-toluenesulfonic acid, 20 parts of phosphoric acid, and 30 parts of water, stir and dissolve for later use;

[0047] Uniform coating of polystyrene foam particles: Take 10L of polystyrene foam particle base material (20g / L), add 130g of the above-mentioned curable flame-retardant glue, stir evenly, add 30g of the above-mentioned curing agent, and continue stirring until uniform Coated polystyrene foam particles;

[0048] Molding: Add the above-mentioned polystyrene foam particles uniformly coated with curable flame-retardant adhesive into the steam hot-pressing mold, close the mold, feed high-pressure steam with a pressure of 0.03MPa, and keep the pressure for 50 seconds, then release the pres...

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Abstract

The invention relates to polystyrene syntactic foam and a preparation method of the polystyrene syntactic foam, and belongs to the field of flameresistant materials. According to the formula, the polystyrene syntactic foam comprises polystyrene foam particles, inflaming retarding glue capable of being cured and curing agents, wherein the inflaming retarding glue capable of being cured is modified phenolic resin, and smoke suppression agents and / or fire retardants commonly used in the field of foam plastics can also be added. The preparation method of the polystyrene syntactic foam comprises the following steps that the inflaming retarding glue capable of being cured is evenly coated on the surface of the polystyrene particles which have risen, and then the polystyrene syntactic foam is prepared at appropriate temperature and pressure. The polystyrene syntactic foam is high in flame retardant property, low in smoke generation amount, low in cost and good in performance, completely resolves the problem of burning falling of polystyrene, and provides a new choice for heat-insulation materials of an outer wall.

Description

technical field [0001] The invention relates to a polystyrene composite foam plastic and a preparation method thereof, belonging to the field of flame retardant materials. Background technique [0002] Polystyrene foam has a closed-cell structure, low water absorption, and excellent water resistance; low density, generally 0.015-0.03; good mechanical strength, excellent cushioning performance; good processability, easy to mold; good coloring, It has strong temperature adaptability, excellent radioactivity resistance, high dimensional accuracy, and uniform structure; in addition, polystyrene foam is cheap and is currently the most widely used external wall insulation material in the world. However, polystyrene foam is extremely flammable and produces a large amount of dense smoke, and it is easy to drip when burning, which accelerates the spread of fire and brings great hidden dangers to fire safety. Therefore, improving the flammability of polystyrene foam and improving the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L61/14
Inventor 林百川刘洪瑞
Owner 林百川
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