CN103059336B - High-flame-retardance composite heat-insulating foam material and preparation method thereof - Google Patents

High-flame-retardance composite heat-insulating foam material and preparation method thereof Download PDF

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CN103059336B
CN103059336B CN201210588759.7A CN201210588759A CN103059336B CN 103059336 B CN103059336 B CN 103059336B CN 201210588759 A CN201210588759 A CN 201210588759A CN 103059336 B CN103059336 B CN 103059336B
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parts
flame
fire
retardant
inorganic combustion
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CN201210588759.7A
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CN103059336A (en
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曾首元
傅选泽
黄嗣立
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龙利钜能国际贸易有限公司
海口粤盛海汕包装制品有限公司
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Abstract

The invention relates to the technical field of polystyrene foam materials, in particular to a high-flame-retardance composite heat-insulating foam material and a preparation method thereof. The high-flame-retardance composite heat-insulating foam material comprises polystyrene foaming particles with the density of 18 to 20 g/L and a flame-retardant composite layer wrapped on the surface of the polystyrene foaming particles, wherein the flame-retardant composite layer consists of a flame-retardant binder of 5 to 50 g/L and an inorganic flame retardant of 5 to 75 g/L. Compared with the prior art, the invention optimizes the formula of the flame retardant and adopts environment-friendly, non-toxic and low-price organic and inorganic flame retardants. The prepared composite heat-insulating material has low production cost. After the product is combusted, the product has the advantages of alveolate skeleton structure, no melted drop, low smoke output quantity, no combustion dripping substance and no particle, so the flame-retardant performance and the flame-retardant grade of the product are obviously improved and the product has wide development prospect in the heat insulation field of buildings such as roofs and walls.

Description

A kind of high flame retardant complex heat-preservation foam materials and preparation method thereof
Technical field
The present invention relates to polystyrene foamed material technical field, be specifically related to a kind of high flame retardant complex heat-preservation foam materials and preparation method thereof.
Background technology
In the heat insulation field of wall thermal insulating, widely the lagging material of application is Expandable Polystyrene (EPS) at present, but due to Expandable Polystyrene (EPS) self have inflammable, the amount of being fuming is large, dropping is many, burning after be the drawbacks such as amorphous viscous liquid, affect the application in the heat insulation field of wall thermal insulating, because Expandable Polystyrene (EPS) burning grade is not high, its application in the heat insulation field of wall thermal insulating and popularization have greatly been limited simultaneously.In prior art, for example, by adding halogen containing flame-retardant (: hexabromocyclododecane) to play flame retardant effect in Expandable Polystyrene (EPS), but halogen containing flame-retardant burning time produces a large amount of smog, dropping is many, does not still meet environmental requirement.
The Chinese invention patent CN1491254A of Styrophen International Pty Ltd. of Australia discloses a kind of polymeric composite foam, in its technical scheme, adopt phenolic aldehyde or the furane resin method as the compound Expandable Polystyrene (EPS) of external phase, phenolic aldehyde or the good flame retardant properties of furane resin are formed to compound insulating material in conjunction with the heat-insulating property group of Expandable Polystyrene (EPS), it is a kind of solution preferably, but there is following defect in practical application: conjugation and adaptation in preparation technology between polystyrene foaming granule are inadequate, thereby cause the decline of the physicalies such as product strength, affect the application of goods as lagging material, simultaneously, due to phenolic aldehyde or furane resin, system is formed by polycondensations such as phenol, formaldehyde or furfuryl alcohol or furfurals, inevitably residual free monomer is in a large number such as formaldehyde, phenol etc., thereby while causing production application, toxicity is large, organic volatile is many, cause environmental pollution, also greatly affected operator's Occupational health.
The Chinese invention patent CN102391588A of Chinese Academy of Sciences's process engineering research application discloses a kind of high-flame-retardant low-smoke-density polystyrene foam compound heat insulating material, resol and fire retardant expansible black lead in its technical scheme, are applied, capsule red phosphorus, nano-aluminum hydroxide is as coating, by this applying coating on expandable polystyrene particle surface, then through the processing method of compression molding, but in actual applications due to expansible black lead, the price of capsule red phosphorus is comparatively expensive, affect the cost performance of product, in addition, because the fire-retardant principle of red phosphorus is to utilize phosphorus and oxygen oxidizing fire to generate Vanadium Pentoxide in FLAKES (P 2o5), reach spreading of fire-retardant flame, play fire retardation, but the drawback of the method is the Vanadium Pentoxide in FLAKES (P producing 2o5) thus can further absorb airborne moisture content become phosphoric acid, thereby make material production acidity, further produce the corrosion to matrix building materials (such as rivet, metal fixing etc.), on the other hand, in preparation method, resol and solidifying agent and expansible black lead, capsule red phosphorus and nano-aluminum hydroxide are stirred and become functional paint in high-speed mixer, and then polystyrene foaming granule and functional paint are stirred to the technique applying, due to the curing characteristics of resol, in the time of production application, once this functional paint preparation too much, tend to be solidified into soon piece, cannot continue to use, mixing functions coating has adopted the equipment of high-speed mixing simultaneously, make this process energy consumption larger, be unfavorable for the reduction of production cost.
The Chinese invention patent CN1906236A of Polma Co., Ltd. of Korea S discloses a kind of expanded polystyrene bead with functional skin layer, in its technical scheme, adopt vinyl acetate resin as functional skin layer, compound interpolation fire retardant is made flame-retardant polystyrene goods again, but its shortcoming is polyvinyl acetate must adopt dissolve with methanol to become solution, and due to the easy adhesion of granules of polystyrene, must in the time stirring, spray ethylene glycol stripper and just can make polystyrene become independently particle; Meanwhile, because polyvinyl acetate does not have in heating or adds the performance that solidifying agent just can be curing, thereby its function ratio as the addition of fire retardant be very limited, it is deteriorated that product can produce moulding when molded, cannot in conjunction with or curing molding; In addition, when production, use poisonous, inflammable methyl alcohol, ethylene glycol etc. to have the difficult problem of solvent evaporates as solvent or stripper, very unfavorable for environmental protection and Occupational safety.
Chinese invention patent application CN102807683A discloses a kind of preparation method of flame-retardant anti-dropping molded polystyrene foam materials, in the method, mention the surface that adopts expansible black lead to do fire retardant to be coated on polystyrene foaming granule, this method has certain help to improving flame retardant resistance, but the fire-retardant principle that its most important shortcoming is expansible black lead is to produce and expand in the time meeting fire, thereby carbonization is fire-retardant, therefore in expansion carbonization process, the skeleton of coating layer is destroyed, produce powder phenomenon-tion, secondly while expansion, can produce micronic dust, particulate and slag-off phenomenon, even also produce Mars, according to GB GB8624-2011 requirement, it is the very disadvantageous combustion phenomena of one that burning has dropping and particulate, therefore this foam materials is applied to building heat preservation field and still has potential safety hazard.
Therefore,, for above-mentioned the deficiencies in the prior art, need badly and provide that a kind of flame retardant properties is good, Environmental Safety, high flame retardant complex heat-preservation foam materials that cost is low and preparation method thereof.
Summary of the invention
One of object of the present invention be to avoid weak point of the prior art and provide that a kind of flame retardant properties is good, Environmental Safety, high flame retardant complex heat-preservation foam materials that cost is low.
Two of object of the present invention is to avoid weak point of the prior art and preparation method that the high flame retardant complex heat-preservation foam materials that a kind of technique is simple, energy consumption is low, production efficiency is high, cost is low is provided.
Object of the present invention is achieved through the following technical solutions:
A kind of high flame retardant complex heat-preservation foam materials is provided, comprises that particle diameter is 1~10mm, the density polystyrene foaming granule that is 18~20g/L and the fire-retardant composite bed that is wrapped in described polystyrene foaming granule surface;
Described fire-retardant composite bed, taking the volume of described polystyrene foaming granule as benchmark, is made up of following raw material:
Fire-resistant binder 5~50g/L;
Inorganic combustion inhibitor 5~75g/L;
Wherein:
Described fire-resistant binder is made up of the raw material of following weight part:
50~80 parts of terpolycyantoamino-formaldehyde resins;
5~20 parts, solidifying agent;
5~10 parts of flame-retardant plasticizers;
5~10 parts, resol;
Described inorganic combustion inhibitor is the mixture of the two or more arbitrary proportion in nanoclay, polynite, sodium aluminium silicate, silicomanganese aluminium sodium stone, talcum powder, polysiloxane, wilkinite, kaolin, antimonous oxide, micro powder graphite, aluminium hydroxide, magnesium hydroxide, zinc borate, boric acid, ammonium polyphosphate, melamine pyrophosphate, trimeric cyanamide urate, boric acid three cyanamides, polyphosphoric acid melamine.
Preferably, described flame-retardant plasticizer is one or more the mixture in dimethyl methyl phosphonate, diphenyl phosphate, triethyl phosphate, tributyl phosphate, triisooctyl phosphate, phosphotriester, diphenyl 2 ethylhexyl phosphate, phosphate diphenyl isodecyl ester, triphenylphosphate, di(2-ethylhexyl)phosphate benzene toluene ester, phosphoric acid hexichol isopropyl benzene ester, tetraphenyl (bisphenol-A) bisphosphate, tetraphenyl resorcinol diphosphate;
Described solidifying agent is the composite curing agent that 30~40% phosphoric acid, 30~40% phenylformic acid and 20~40% water mix by weight percent.
Preferably, described fire-retardant composite bed is made up of following raw material:
Fire-resistant binder 20~40g/L;
Inorganic combustion inhibitor 30~65g/L;
The weight ratio of described fire-resistant binder and described inorganic combustion inhibitor is 1:1.2~1:1.5;
Described flame-retardant plasticizer is the mixture of triethyl phosphate, tributyl phosphate and triphenylphosphate.
Preferably, described inorganic combustion inhibitor is made up of the raw material of following weight part:
5~10 parts of polynites;
50~80 parts, aluminium hydroxide;
30~60 parts of zinc borates;
10~30 parts of ammonium polyphosphates;
1~5 part of melamine pyrophosphate;
1~5 part of trimeric cyanamide urate.
Preferably, described inorganic combustion inhibitor is made up of the raw material of following weight part:
10~30 parts of sodium aluminium silicates;
10~20 parts, silicomanganese aluminium sodium stone;
10~20 parts of talcum powder;
30~70 parts of magnesium hydroxides;
10~20 parts of boric acid three cyanamides;
5~20 parts of melamine pyrophosphates.
Preferably, described inorganic combustion inhibitor is made up of the raw material of following weight part:
10~20 parts of polysiloxane;
20~40 parts of kaolin;
30~70 parts, aluminium hydroxide;
10~20 parts of boric acid three cyanamides;
10~20 parts of ammonium polyphosphates;
10~20 parts of polyphosphoric acid melamines.
Preferably, described inorganic combustion inhibitor is made up of the raw material of following weight part:
20~30 parts of polysiloxane;
25~50 parts of wilkinites;
25~70 parts, aluminium hydroxide;
10~30 parts of boric acid three cyanamides;
10~30 parts of trimeric cyanamide urates.
Preferably, described inorganic combustion inhibitor is made up of the raw material of following weight part:
20~50 parts of nanoclays;
5~20 parts of micro powder graphites;
10~50 parts of zinc borates;
30~60 parts, aluminium hydroxide;
10~50 parts of ammonium polyphosphates;
5~20 parts of melamine pyrophosphates.
Preferably, the density of described high flame retardant complex heat-preservation foam materials is 30~80g/L.
The present invention also provides the preparation method of above-mentioned high flame retardant complex heat-preservation foam materials, comprises following preparation process:
1, pre-frothing:
It is the polystyrene foaming granule that 1~10mm, density are 18~20g/L that Expandable Polystyrene (EPS) raw material is become to particle diameter through prefoaming machine foaming;
2, preparation fire-resistant binder
By above-mentioned formula by terpolycyantoamino-formaldehyde resin, solidifying agent, flame-retardant plasticizer at normal temperatures mixing speed be under 80~120rpm condition, mix after, obtain liquid fire-resistant binder;
3, prepare inorganic combustion inhibitor
By above-mentioned formula, material is mixed at normal temperatures to the inorganic combustion inhibitor of rear acquisition powdery;
4, preparation has the polystyrene foaming granule of fire-retardant composite bed
The polystyrene foaming granule that step 1 is obtained is transferred in the mixing equipment with agitating function, open and stir, then the fire-resistant binder of being prepared by step 2 is sprayed in mixing equipment, it is fully contacted with the surface of polystyrene foaming granule, add again inorganic combustion inhibitor prepared by step 3 and continue to stir, mixing speed is 80~150RPM, make fire-resistant binder and inorganic combustion inhibitor be attached to the surface of polystyrene foaming granule, form the polystyrene foaming granule equably with fire-retardant composite bed;
5, dry
The polystyrene foaming granule with fire-retardant composite bed prepared by step 4 is through fluidised bed drying, and drying temperature is 35~65 degree, and acquisition particle is dry and soft, the polystyrene foaming granule of good fluidity;
6, molded
The polystyrene foaming granule of step 5 is transported to carrying out steam heating moulding in the forming machine of mould, and vapor pressure is 0.08~0.12Mpa, and heat-up time, 10~30s, after cooling 130~165s sizing, obtained high flame retardant complex heat-preservation foam materials.
the invention has the beneficial effects as follows:
A kind of high flame retardant complex heat-preservation foam materials of the present invention, comprise that particle diameter is 1~10mm, the density polystyrene foaming granule that is 18~20g/L and the fire-retardant composite bed that is wrapped in polystyrene foaming granule surface, fire-retardant composite bed is made up of fire-resistant binder 5~50g/L, inorganic combustion inhibitor 5~75g/L, wherein, polystyrene foaming granule is as heat insulating base material, play function of heat insulation, fire-resistant binder is for adhering to inorganic combustion inhibitor on the surface of polystyrene foaming granule, fire-resistant binder is by 50~80 parts of terpolycyantoamino-formaldehyde resins, 5~20 parts, solidifying agent, 5~10 parts of flame-retardant plasticizers, 5~10 parts of compositions of resol, it is a kind of resin of environmental protection the most as the terpolycyantoamino-formaldehyde resin of main raw material, the content of its free formaldehyde can be low to moderate below 0.1%, resol adopts the resol of low formaldehyde content type, inorganic combustion inhibitor is pulverulent mixture, there is the characteristic of oil suction, can play and be dried and make polystyrene foaming granule dry and soft, there is good mobility and be beneficial to the effect of carrying, and this inorganic combustion inhibitor environment-protecting asepsis, cheap, processing is simple, compared with prior art, the present invention has optimized fire retardant formula, combine phosphorus system, silicon, aluminium, magnesium, fire-retardant advantage and the effect of boron system and organic fire-retardant, after first adding fire-resistant binder in preparation process and being uniformly mixed, adding inorganic combustion inhibitor to stir once completes again, there is operation short, energy consumption is low, the feature that efficiency is higher, prepared complex heat-preservation foam production cost is lower, and have aspect fire-retardant fire-retardant, press down cigarette, low toxicity, the feature of environmental protection, after burning, there is cellular skeleton structure, have without melting simultaneously and drip, low-smoke, without the advantage of burning dropping and particulate, flame retardant properties and the flame resistance grade of goods are significantly promoted, thereby on roof, the building heat preservation fields such as body of wall have vast potential for future development.
Embodiment
Below principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Following examples all adopt the polystyrene foaming granule of 60L to test.
embodiment 1
A kind of high flame retardant complex heat-preservation foam materials, comprises following preparation process:
A, Expandable Polystyrene (EPS) raw material is foamed into the polystyrene foaming granule that density is 18g/L through prefoaming machine;
B, get 900 grams of terpolycyantoamino-formaldehyde resins, add 50 grams, solidifying agent, then add 50 grams, resol, 25 grams of triethyl phosphates, 25 grams of triphenylphosphates, at normal temperatures, stirring in the mixing device of mixing speed 100rpm is mixed into the liquid flame-proof binding agent of 1050 grams;
C, the polystyrene foaming granule that is 60L by volume are put into the mixing machine with agitating function, then open and stir, and mixing speed 80rpm, adds liquid flame-proof binding agent, mixes;
2000 grams of D, configuration inorganic combustion inhibitors, then, under whipped state, join mixing machine by inorganic combustion inhibitor, after stirring, obtain having the polystyrene foaming granule of fire-retardant composite bed, then through fluidised bed drying, drying temperature is 40 DEG C;
Concrete, inorganic combustion inhibitor is made up of the raw material of following weight part:
5~10 parts of polynites;
50~80 parts, aluminium hydroxide;
30~60 parts of zinc borates;
10~30 parts of ammonium polyphosphates;
1~5 part of melamine pyrophosphate;
1~5 part of trimeric cyanamide urate;
In this step, fluidized-bed also can adopt the equipment with natural draft drying function to replace;
E, the polystyrene foaming granule with fire-retardant composite bed is input in forming mould, carry out steam heating moulding, vapor pressure 0.08~0.12Mpa, heat-up time 30s, after cooling 150s sizing, making density is the high flame retardant complex heat-preservation foam materials of 60g/L.
Molding device in this step can use general EPS automatic molder, native machine, semi automatic machine, the large plate machine of EPS etc.;
The high flame retardant complex heat-preservation foam materials that moulding prepares, can adopt the modes such as nichrome wire cutting, electric saw cutting, is processed into difform goods;
As preferred embodiment, in the present embodiment, the solidifying agent in step B, also can reduce its consumption and even not use, by the polystyrene foaming granule with fire-retardant composite bed of preparation is sent into dry solidification in drying room.
The interpolation of fire-resistant binder, can adopt the metered injection pumping with high pressure spraying function to realize;
The interpolation of inorganic combustion inhibitor, can adopt to have the feed intake cast feeder of function of continuous and quantitative and realize;
Fire-resistant binder also can first be mixed with inorganic combustion inhibitor, is prepared into and has after bonding and the mixture of anti-flaming function, then join the surface of mixing with polystyrene foaming granule in mixing machine and be attached to polystyrene foaming granule and form fire-retardant composite bed.
embodiment 2
The main technical schemes of the present embodiment is identical with embodiment 1, and difference is:
A kind of high flame retardant complex heat-preservation foam materials, comprises following preparation process:
A, Expandable Polystyrene (EPS) raw material is foamed into the polystyrene foaming granule that density is 18g/L through prefoaming machine;
B, get 670 grams of terpolycyantoamino-formaldehyde resins, add 30 grams, solidifying agent, then add 60 grams, resol, 100 grams of tributyl phosphates, at normal temperatures, stirring in the mixing device of mixing speed 100rpm is mixed into the liquid flame-proof binding agent of 860 grams;
C, the polystyrene foaming granule that is 60L by volume are put into the mixing machine with agitating function, then open and stir, and mixing speed 80rpm, adds liquid flame-proof binding agent, mixes;
1500 grams of D, configuration inorganic combustion inhibitors, then, under whipped state, join mixing machine by inorganic combustion inhibitor, after stirring, obtain having the polystyrene foaming granule of fire-retardant composite bed, then through fluidised bed drying, drying temperature is 50 DEG C;
Concrete, inorganic combustion inhibitor is made up of the raw material of following weight part:
10~30 parts of sodium aluminium silicates;
10~20 parts, silicomanganese aluminium sodium stone;
10~20 parts of talcum powder;
30~70 parts of magnesium hydroxides;
10~20 parts of boric acid three cyanamides;
5~20 parts of melamine pyrophosphates;
E, the polystyrene foaming granule with fire-retardant composite bed is input in forming mould, carry out steam heating moulding, vapor pressure 0.08~0.12Mpa, heat-up time 20s, after cooling 130s sizing, making density is the high flame retardant complex heat-preservation foam materials of 50g/L.
embodiment 3
The main technical schemes of the present embodiment is identical with embodiment 1, and difference is:
A kind of high flame retardant complex heat-preservation foam materials, comprises following preparation process:
A, Expandable Polystyrene (EPS) raw material is foamed into the polystyrene foaming granule that density is 18g/L through prefoaming machine;
B, get 950 grams of terpolycyantoamino-formaldehyde resins, add 90 grams, solidifying agent, then add 80 grams, resol, 40 grams of triethyl phosphates, 60 grams of triphenylphosphates, at normal temperatures, stirring in the mixing device of mixing speed 100rpm is mixed into the liquid flame-proof binding agent of 1220 grams;
C, the polystyrene foaming granule that is 60L by volume are put into the mixing machine with agitating function, then open and stir, and mixing speed 120rpm, adds liquid flame-proof binding agent, mixes;
2250 grams of D, configuration inorganic combustion inhibitors, then, under whipped state, join mixing machine by inorganic combustion inhibitor, after stirring, obtain having the polystyrene foaming granule of fire-retardant composite bed, then through fluidised bed drying, drying temperature is 65 DEG C;
Concrete, inorganic combustion inhibitor is made up of the raw material of following weight part:
10~20 parts of polysiloxane;
20~40 parts of kaolin;
30~70 parts, aluminium hydroxide;
10~20 parts of boric acid three cyanamides;
10~20 parts of ammonium polyphosphates;
10~20 parts of polyphosphoric acid melamines;
E, the polystyrene foaming granule with fire-retardant composite bed is input in forming mould, carry out steam heating moulding, vapor pressure 0.08~0.12Mpa, heat-up time 18s, after cooling 165s sizing, making density is the high flame retardant complex heat-preservation foam materials of 71g/L.
embodiment 4
The main technical schemes of the present embodiment is identical with embodiment 1, and difference is:
A kind of high flame retardant complex heat-preservation foam materials, comprises following preparation process:
A, Expandable Polystyrene (EPS) raw material is foamed into the polystyrene foaming granule that density is 18g/L through prefoaming machine;
B, get 880 grams of terpolycyantoamino-formaldehyde resins, add 100 grams, solidifying agent, then add 35 grams, resol, 15 grams of triethyl phosphates, 30 grams of tributyl phosphates, at normal temperatures, stirring in the mixing device of mixing speed 100rpm is mixed into the liquid flame-proof binding agent of 1060 grams;
C, the polystyrene foaming granule that is 60L by volume are put into the mixing machine with agitating function, then open and stir, and mixing speed 120rpm, adds liquid flame-proof binding agent, mixes;
1750 grams of D, configuration inorganic combustion inhibitors, then, under whipped state, join mixing machine by inorganic combustion inhibitor, after stirring, obtain having the polystyrene foaming granule of fire-retardant composite bed, then through fluidised bed drying, drying temperature is 45 DEG C;
Concrete, inorganic combustion inhibitor is made up of the raw material of following weight part:
20~30 parts of polysiloxane;
25~50 parts of wilkinites;
25~70 parts, aluminium hydroxide;
10~30 parts of boric acid three cyanamides;
10~30 parts of trimeric cyanamide urates;
E, the polystyrene foaming granule with fire-retardant composite bed is input in forming mould, carry out steam heating moulding, vapor pressure 0.08~0.12Mpa, heat-up time 28s, after cooling 143s sizing, making density is the high flame retardant complex heat-preservation foam materials of 63g/L.
embodiment 5
The main technical schemes of the present embodiment is identical with embodiment 1, and difference is:
A kind of high flame retardant complex heat-preservation foam materials, comprises following preparation process:
A, Expandable Polystyrene (EPS) raw material is foamed into the polystyrene foaming granule that density is 18g/L through prefoaming machine;
B, get 1250 grams of terpolycyantoamino-formaldehyde resins, add 120 grams, solidifying agent, then add 110 grams of triphenylphosphates, 80 grams of tributyl phosphates, at normal temperatures, stirring in the mixing device of mixing speed 100rpm is mixed into the liquid flame-proof binding agent of 1560 grams;
C, the polystyrene foaming granule that is 60L by volume are put into the mixing machine with agitating function, then open and stir, and mixing speed 120rpm, adds liquid flame-proof binding agent, mixes;
2200 grams of D, configuration inorganic combustion inhibitors, then, under whipped state, join mixing machine by inorganic combustion inhibitor, after stirring, obtain having the polystyrene foaming granule of fire-retardant composite bed, then through fluidised bed drying, drying temperature is 45 DEG C;
Concrete, inorganic combustion inhibitor is made up of the raw material of following weight part:
20~50 parts of nanoclays;
5~20 parts of micro powder graphites;
10~50 parts of zinc borates;
30~60 parts, aluminium hydroxide;
10~50 parts of ammonium polyphosphates;
5~20 parts of melamine pyrophosphates;
In above-mentioned formula, can make polystyrene foaming granule become black gray expandable owing to being added with micro powder graphite, can improve product appearance and further reduce the effect of thermal conductivity;
E, the polystyrene foaming granule with fire-retardant composite bed is input in forming mould, carry out steam heating moulding, vapor pressure 0.08~0.12Mpa, heat-up time 23s, after cooling 135s sizing, the outward appearance of making density and be 78g/L is the high flame retardant complex heat-preservation foam materials of black gray expandable.
comparative example 1
The common flame retardant type Expandable Polystyrene (EPS) that comparative example 1 is 18g/L for density, does not add fire-resistant binder of the present invention and inorganic combustion inhibitor in its formula, as shown in table 1 in every flame retardant properties test result.
detect and analyze
The high flame retardant complex heat-preservation foam materials of embodiment 1~5 preparation is carried out to every flame retardant properties test and compares with comparative example 1, comparing result (indices in table 1 is all according to GB8624-2006 standard detection) as shown in table 1:
Table 1. the flame retardant properties test of embodiment 1~5 high flame retardant complex heat-preservation foam materials of preparation and the common flame retardant type Expandable Polystyrene (EPS) of comparative example 1
From the correlation data of table 1, the high flame retardant complex heat-preservation foam materials of embodiment 1~5 preparation has a distinct increment aspect oxygen index, and all decline to a great extent at aspects such as combustion heat value, heat release rate, the amounts of being fuming, after burning, there is cellular skeleton structure, have advantages of without melting simultaneously drip, low-smoke, without burning dropping and particulate, the flame retardant properties and the flame resistance grade that have significantly promoted product, be applied to building thermal insulation material, and the safety performance of product is ensured.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (8)

1. a high flame retardant complex heat-preservation foam materials, is characterized in that: comprise that particle diameter is 1~10mm, the density polystyrene foaming granule that is 18~20g/L and the fire-retardant composite bed that is wrapped in described polystyrene foaming granule surface;
Described fire-retardant composite bed, taking the volume of described polystyrene foaming granule as benchmark, is made up of following raw material:
Fire-resistant binder 5~50g/L;
Inorganic combustion inhibitor 5~75g/L;
Wherein:
Described fire-resistant binder is made up of the raw material of following weight part:
50~80 parts of terpolycyantoamino-formaldehyde resins;
5~20 parts, solidifying agent;
5~10 parts of flame-retardant plasticizers;
5~10 parts, resol;
Described inorganic combustion inhibitor is the mixture of the two or more arbitrary proportion in nanoclay, polynite, sodium aluminium silicate, talcum powder, polysiloxane, wilkinite, kaolin, antimonous oxide, micro powder graphite, aluminium hydroxide, magnesium hydroxide, zinc borate, boric acid, ammonium polyphosphate, melamine pyrophosphate, trimeric cyanamide urate, boric acid trimeric cyanamide, polyphosphoric acid melamine;
Described flame-retardant plasticizer is one or more the mixture in dimethyl methyl phosphonate, diphenyl phosphate, triethyl phosphate, tributyl phosphate, triisooctyl phosphate, diphenyl 2 ethylhexyl phosphate, phosphate diphenyl isodecyl ester, triphenylphosphate, di(2-ethylhexyl)phosphate benzene toluene ester, phosphoric acid hexichol isopropyl benzene ester, tetraphenyl (bisphenol-A) bisphosphate, tetraphenyl resorcinol diphosphate;
Described solidifying agent is the composite curing agent that 30~40% phosphoric acid, 30~40% phenylformic acid and 20~40% water mix by weight percent;
Described resol is the resol of low formaldehyde content type.
2. a kind of high flame retardant complex heat-preservation foam materials as claimed in claim 1, is characterized in that: described fire-retardant composite bed is made up of following raw material:
Fire-resistant binder 20~40g/L;
Inorganic combustion inhibitor 30~65g/L;
The weight ratio of described fire-resistant binder and described inorganic combustion inhibitor is 1:1.2~1:1.5;
Described flame-retardant plasticizer is the mixture of triethyl phosphate, tributyl phosphate and triphenylphosphate.
3. a kind of high flame retardant complex heat-preservation foam materials as claimed in claim 1, is characterized in that: described inorganic combustion inhibitor is made up of the raw material of following weight part:
5~10 parts of polynites;
50~80 parts, aluminium hydroxide;
30~60 parts of zinc borates;
10~30 parts of ammonium polyphosphates;
1~5 part of melamine pyrophosphate;
1~5 part of trimeric cyanamide urate.
4. a kind of high flame retardant complex heat-preservation foam materials as claimed in claim 1, is characterized in that: described inorganic combustion inhibitor is made up of the raw material of following weight part:
10~20 parts of polysiloxane;
20~40 parts of kaolin;
30~70 parts, aluminium hydroxide;
10~20 parts of boric acid trimeric cyanamides;
10~20 parts of ammonium polyphosphates;
10~20 parts of polyphosphoric acid melamines.
5. a kind of high flame retardant complex heat-preservation foam materials as claimed in claim 1, is characterized in that: described inorganic combustion inhibitor is made up of the raw material of following weight part:
20~30 parts of polysiloxane;
25~50 parts of wilkinites;
25~70 parts, aluminium hydroxide;
10~30 parts of boric acid trimeric cyanamides;
10~30 parts of trimeric cyanamide urates.
6. a kind of high flame retardant complex heat-preservation foam materials as claimed in claim 1, is characterized in that: described inorganic combustion inhibitor is made up of the raw material of following weight part:
20~50 parts of nanoclays;
5~20 parts of micro powder graphites;
10~50 parts of zinc borates;
30~60 parts, aluminium hydroxide;
10~50 parts of ammonium polyphosphates;
5~20 parts of melamine pyrophosphates.
7. high flame retardant complex heat-preservation foam materials as claimed in claim 1, is characterized in that: the density of described high flame retardant complex heat-preservation foam materials is 30~80g/L.
8. the preparation method of the high flame retardant complex heat-preservation foam materials described in claim 1 to 7 any one, is characterized in that: comprise following preparation process:
1, pre-frothing:
It is the polystyrene foaming granule that 1~10mm, density are 18~20g/L that Expandable Polystyrene (EPS) raw material is become to particle diameter through prefoaming machine foaming;
2, preparation fire-resistant binder
By above-mentioned formula by terpolycyantoamino-formaldehyde resin, solidifying agent, flame-retardant plasticizer at normal temperatures stirring velocity be under 80~120RPM condition, mix after, obtain liquid fire-resistant binder;
3, prepare inorganic combustion inhibitor
By above-mentioned formula, material is mixed at normal temperatures to the inorganic combustion inhibitor of rear acquisition powdery;
4, preparation has the polystyrene foaming granule of fire-retardant composite bed
The polystyrene foaming granule that step 1 is obtained is transferred in the mixing equipment with agitating function, open and stir, then the fire-resistant binder of being prepared by step 2 is sprayed in mixing equipment, it is fully contacted with the surface of polystyrene foaming granule, add again inorganic combustion inhibitor prepared by step 3 and continue to stir, mixing speed is 80~150RPM, make fire-resistant binder and inorganic combustion inhibitor be attached to the surface of polystyrene foaming granule, form the polystyrene foaming granule equably with fire-retardant composite bed;
5, dry
The polystyrene foaming granule with fire-retardant composite bed prepared by step 4 is through fluidised bed drying, and drying temperature is 35~65 degree, and acquisition particle is dry and soft, the polystyrene foaming granule of good fluidity;
6, molded
The polystyrene foaming granule of step 5 is transported to carrying out steam heating moulding in the forming machine of mould, and vapor pressure is 0.08~0.12Mpa, and heat-up time, 10~30s, after cooling 130~165s sizing, obtained high flame retardant complex heat-preservation foam materials.
CN201210588759.7A 2012-12-31 2012-12-31 High-flame-retardance composite heat-insulating foam material and preparation method thereof CN103059336B (en)

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