CN105001577A - Thermal insulation and fire retardation material and preparation method thereof - Google Patents
Thermal insulation and fire retardation material and preparation method thereof Download PDFInfo
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- CN105001577A CN105001577A CN201510430617.1A CN201510430617A CN105001577A CN 105001577 A CN105001577 A CN 105001577A CN 201510430617 A CN201510430617 A CN 201510430617A CN 105001577 A CN105001577 A CN 105001577A
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Abstract
The present invention discloses a thermal insulation and fire retardation material and a preparation method thereof, wherein the thermal insulation and fire retardation material comprises a polyethylene resin, epichlorohydrin, silicate, polyethylene glycol, an inorganic colloid, a polymer, diatomaceous earth, silica, toluene diisocyanate, dibutyl tin dilaurate, and hydroxypropyl methyl cellulose, wherein acrylamide, water, acrylic acid, ammonium persulfate, calcium oxide, diethylenetriamine, dodecyl fatty acid and plant fibers are subjected to a polymerization reaction to obtain the polymer. The preparation method comprises mixing the components, carrying out a heating reaction, carrying out vacuum heating, and calendaring so as to prepare the thermal insulation and fire retardation material. According to the present invention, the fire retardation performance of the thermal insulation and fire retardation material achieves the national grade A, the thermal conductivity achieves less than or equal to 0.012 W/m.K, the compressive strength achieves more than or equal to 12 MPa, and the thermal insulation and fire retardation material has characteristics of excellent acid resistance, excellent alkali resistance, excellent neutral salt spray resistance, and wide application prospect.
Description
Technical field
The invention belongs to heat preserving and insulating material preparation field, particularly a kind of heat insulation flame-retardant material and preparation method thereof.
Background technology
The ratio that the current energy for building accounts for world energy sources wastage in bulk or weight is very large, and about about 27%, the use of external-wall heat-insulation material can be saved huge energy and reduce CO
2quantity discharged, from then in angle, external wall outer insulation material can be described as green energy resource.Use thermal insulation material one of best approach becoming save energy in construction industry.For energy-intensive today, the good external-wall heat-insulation material of exploitation over-all properties is extremely urgent.
At present on China's external-wall heat-insulation material market, EPS (polystyrene foam), XPS (extruded polystyrene foam) and polyurethane foam board are most widely used.But this different materials also has unavoidable shortcoming as wall heat insulation material, namely their burning grade is B level, and be combustible matl, security is not good.Usual civilian lagging material should use A level non-combustible material, but just sees in the market, and A level lagging material only has glass wool, rock cotton board, multicellular glass, glass bead several.
Inorganic building material weight at present for exterior wall is large, and insulation, fire resistance are poor, easily come off, can not meet the requirement of modern architecture.And the fire-retardant heat-insulation material of organic, fire prevention, humidity resistance is poor, and weathering resistance is poor, and compressive property is not good, and construction process complexity.Application number be 201310177498.4 Chinese patent disclose a kind of lagging material and preparation method thereof, this lagging material mixes by being added water by mica, vinyl alcohol, plastic of poly vinyl acetate, polyvinyl alcohol, cement, saponite, butyronitrile, epoxy resin, Vltra tears, sodium dodecyl benzenylsulfonate, dibutyl phthalate, polyacrylamide and starch ethers.It can play certain heat-blocking action, but its effect of heat insulation is more limited, and weathering resistance is general; Application number be 201510122827.0 Chinese patent disclose a kind of composite heat insulatant thermal insulation material, it is made up of sepiolite, perlite, the lagging material such as pearl, pure aluminium silicate component of wafing, its thermal conductivity reaches 0.018-0.019W/mk, and it is high temperature resistant, but its crushing resistance is poor, and be prepared into veriform product, as brick, plate, felt etc. can produce certain impact to its performance.
Summary of the invention
The object of the invention is to provide a kind of heat insulation flame-retardant material and preparation method thereof to overcome above the deficiencies in the prior art, making material have good fire-retardant and insulation effect, there is the performances such as good resistance to compression and erosion resistance simultaneously.
Technical scheme of the present invention is as follows:
A kind of heat insulation flame-retardant material, comprise in components by weight percent: polyvinyl resin 3-8 part, epoxy chloropropane 5-8 part, silicate 5-10 part, polyoxyethylene glycol 5-10 part, mineral colloid 6-12 part, polymer 8-15 part, diatomite 5-10 part, silicon-dioxide 2-7 part, tolylene diisocyanate 2-6 part, dibutyl tin laurate 1-3 part, hypromellose 1-4 part; Wherein said polymer is for be obtained by polyreaction by acrylamide, water, vinylformic acid, ammonium persulphate, calcium oxide, diethylenetriamine, dodecyl lipid acid and vegetable fibre.
Described heat insulation flame-retardant material, can preferably comprise in components by weight percent: polyvinyl resin 4-7 part, epoxy chloropropane 6-8 part, silicate 7-9 part, polyoxyethylene glycol 6-8 part, mineral colloid 7-10 part, polymer 11-14 part, diatomite 8-10 part, silicon-dioxide 4-6 part, tolylene diisocyanate 3-5 part, dibutyl tin laurate 2-3 part, hypromellose 2-4 part.
Described heat insulation flame-retardant material, described polymeric preparation process is for join in reactor by vinylformic acid and water, then under the condition stirred, calcium oxide is added, after question response mixed solution bleach, with sodium hydroxide, system pH is transferred to 7-9, then acrylamide is added, stirring makes acrylamide dissolve, add dodecyl lipid acid again, vegetable fibre, system is warming up to 40-50 DEG C, add ammonium persulphate and diethylenetriamine, 4-5 hour is stirred under keeping temperature-resistant condition, obtain polymer, again by polymer shear granulation, and dry pulverizing, obtained polymer finished product.
Above-described heat insulation flame-retardant material, in described polymeric preparation process, the amount that each material adds can be following parts by weight: acrylamide 30-40 part, water 120-150 part, vinylformic acid 15-20 part, ammonium persulphate 2-6 part, calcium oxide 3-8 part, diethylenetriamine 1-4 part, dodecyl lipid acid 20-30 part, vegetable fibre 8-15 part.
Above-described heat insulation flame-retardant material, in described polymeric preparation process, bake out temperature is 120-130 DEG C, and the particle diameter after pulverizing is 60-80 order.
Above-described heat insulation flame-retardant material, described silicate is the one in water glass, potassium silicate, Calucium Silicate powder, pure aluminium silicate or Magnesium Silicate q-agent; Described polyoxyethylene glycol is Polyethylene Glycol-600, the one in polyethylene glycol-800 or Macrogol 2000.
Above-described heat insulation flame-retardant material, described mineral colloid is siliceous colloid, Al (OH)
3colloid and Fe (OH)
3one in colloid.
The preparation method of the heat insulation flame-retardant material described in more than one, comprises following preparation process:
Step one, takes each component according to weight part;
Step 2, by polyvinyl resin, silicate, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose stir in stirrer for mixing, obtain mixture one;
Step 3, is transferred in reactor by mixture one, adds polyoxyethylene glycol, epoxy chloropropane, be heated to 60-70 DEG C, stirs 30-50 minute, then adds mineral colloid, continues to stir 20-30 minute, obtains mixture two;
Step 4, joins polymer in mixture two, is heated to 60-70 DEG C under vacuum, stirs 30-50 minute, then keep vacuum tightness, cool the temperature to 40-50 DEG C, add dibutyl tin laurate, continue to stir 60-80 minute, be down to room temperature, obtain mixture three;
Step 5, crosses rolling press calendering formation by mixture threeway, obtains heat insulation flame-retardant material.
The preparation method of described heat insulation flame-retardant material, in step 4, the vacuum tightness of vacuum condition is 0.01-0.04MPa.
The preparation method of described heat insulation flame-retardant material, in step 5, rolling temperature is 100-120 DEG C.
The principle of heat insulation flame-retardant material provided by the invention is by by polyvinyl resin, silicate, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose are as matrix, by adding polyoxyethylene glycol, epoxy chloropropane, mineral colloid, the reaction successively of polymer and dibutyl tin laurate, define fine and close structure, polymer serves the effect of excitation material function wherein simultaneously, wherein polymer to temperature and psychromatic ratio more responsive, when envrionment temperature is more than 40 DEG C, this polymer can show certain volume-diminished and progressively semi-fluid, there is certain micro-structure change in the material internal that can make like this, there is some negative pressure holes in short period of time, further enhancing the heat insulating effect of material.
Heat insulation flame-retardant material provided by the invention beneficial effect is compared with prior art as follows:
(1) flame retardant properties of heat insulation flame-retardant material provided by the invention reaches national A level, thermal conductivity reaches below 0.012W/mK, ultimate compression strength reaches more than 12MPa, it is without exception that acid resistance reaches more than 2200h, it is without exception that alkaline resistance properties reaches more than 2100h, it is without exception that resistance to neutral salt spray performance reaches more than 2600h, has the performance of the corrosion such as good fire-retardant, insulation, resistance to compression and antiacid alkali.
(2) polymer is introduced in heat insulation flame-retardant material provided by the invention, this polymer to temperature and psychromatic ratio more responsive, when envrionment temperature is more than 40 DEG C, this polymer can show certain volume-diminished and progressively semi-fluid, there is certain micro-structure change in the material internal that can make like this, there is some negative pressure holes in short period of time, further enhancing the heat insulating effect of material.
(3) heat insulation flame-retardant material provided by the invention is shaping finally by the method for calendering, different thickness can be prepared into as required, be applied in building thermal insulation material and effectively can reduce Conventional insulation and need certain thickness just can play the defect of heat insulation effect, simultaneously material environment-friendly light more compared with Conventional insulation, is convenient to the application of field of thermal insulation.
Embodiment:
Embodiment 1
A kind of heat insulation flame-retardant material, comprise in components by weight percent: polyvinyl resin 3 parts, epoxy chloropropane 5 parts, water glass 5 parts, Polyethylene Glycol-600 5 parts, siliceous colloid 6 parts, polymer 8 parts, 5 parts, diatomite, silicon-dioxide 2 parts, tolylene diisocyanate 2 parts, dibutyl tin laurate 1 part, hypromellose 1 part.
Wherein said polymeric preparation process is as follows:
According to weight part, 15 parts, vinylformic acid and 120 parts, water are joined in reactor, then under the condition stirred, 3 parts, calcium oxide is added, after question response mixed solution bleach, with sodium hydroxide, system pH is transferred to 7, then acrylamide 30 parts is added, stirring makes acrylamide dissolve, add 20 parts, dodecyl lipid acid again, 8 parts, vegetable fibre, system is warming up to 40 DEG C, add ammonium persulphate 2 parts and diethylenetriamine 1 part, stir 4 hours under keeping temperature-resistant condition, obtain polymer, again by polymer shear granulation, and ovendry power is broken to 60 orders under 120 DEG C of conditions, obtained polymer finished product.
The preparation method of above-described heat insulation flame-retardant material, comprises following preparation process:
Step one, takes each component according to weight part;
Step 2, by polyvinyl resin, water glass, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose stir in stirrer for mixing, obtain mixture one;
Step 3, is transferred in reactor by mixture one, adds polyoxyethylene glycol, epoxy chloropropane, is heated to 60 DEG C, stirs 30 minutes, then adds siliceous colloid, continues stirring 20 minutes, obtains mixture two;
Step 4, joins in mixture two by polymer, in vacuum tightness be the heated under vacuum of 0.04MPa to 60 DEG C, stir 30 minutes, then keep vacuum tightness, cool the temperature to 40 DEG C, add dibutyl tin laurate, continue stirring 60 minutes, be down to room temperature, obtain mixture three;
Step 5, crosses rolling press calendering formation by mixture threeway, and wherein rolling temperature is 100 DEG C, obtains heat insulation flame-retardant material.
Embodiment 2
A kind of heat insulation flame-retardant material, comprises in components by weight percent: polyvinyl resin 4 parts, epoxy chloropropane 6 parts, potassium silicate 7 parts, polyethylene glycol-800 6 parts, Al (OH)
37 parts, colloid, polymer 11 parts, 8 parts, diatomite, silicon-dioxide 4 parts, tolylene diisocyanate 3 parts, dibutyl tin laurate 2 parts, hypromellose 2 parts.
Wherein said polymeric preparation process is as follows:
According to weight part, 17 parts, vinylformic acid and 130 parts, water are joined in reactor, then under the condition stirred, 4 parts, calcium oxide is added, after question response mixed solution bleach, with sodium hydroxide, system pH is transferred to 7, then acrylamide 33 parts is added, stirring makes acrylamide dissolve, add 25 parts, dodecyl lipid acid again, 10 parts, vegetable fibre, system is warming up to 44 DEG C, add ammonium persulphate 3 parts and diethylenetriamine 2 parts, stir 4 hours under keeping temperature-resistant condition, obtain polymer, again by polymer shear granulation, and ovendry power is broken to 60 orders under 128 DEG C of conditions, obtained polymer finished product.
The preparation method of above-described heat insulation flame-retardant material, comprises following preparation process:
Step one, takes each component according to weight part;
Step 2, by polyvinyl resin, potassium silicate, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose stir in stirrer for mixing, obtain mixture one;
Step 3, is transferred in reactor by mixture one, adds polyethylene glycol-800, epoxy chloropropane, is heated to 62 DEG C, stirs 36 minutes, then adds Al (OH)
3colloid, continues stirring 22 minutes, obtains mixture two;
Step 4, joins in mixture two by polymer, in vacuum tightness be the heated under vacuum of 0.01MPa to 65 DEG C, stir 38 minutes, then keep vacuum tightness, cool the temperature to 45 DEG C, add dibutyl tin laurate, continue stirring 65 minutes, be down to room temperature, obtain mixture three;
Step 5, crosses rolling press calendering formation by mixture threeway, and wherein rolling temperature is 105 DEG C, obtains heat insulation flame-retardant material.
Embodiment 3
A kind of heat insulation flame-retardant material, comprises in components by weight percent: polyvinyl resin 6 parts, epoxy chloropropane 7 parts, pure aluminium silicate 8 parts, polyethylene glycol-800 7 parts, Fe (OH)
38 parts, colloid, polymer 13 parts, 9 parts, diatomite, silicon-dioxide 5 parts, tolylene diisocyanate 4 parts, dibutyl tin laurate 3 parts, hypromellose 3 parts.
Wherein said polymeric preparation process is as follows:
According to weight part, 18 parts, vinylformic acid and 140 parts, water are joined in reactor, then under the condition stirred, 6 parts, calcium oxide is added, after question response mixed solution bleach, with sodium hydroxide, system pH is transferred to 8, then acrylamide 36 parts is added, stirring makes acrylamide dissolve, add 25 parts, dodecyl lipid acid again, 12 parts, vegetable fibre, system is warming up to 48 DEG C, add ammonium persulphate 4 parts and diethylenetriamine 3 parts, stir 5 hours under keeping temperature-resistant condition, obtain polymer, again by polymer shear granulation, and ovendry power is broken to 80 orders under 125 DEG C of conditions, obtained polymer finished product.
The preparation method of above-described heat insulation flame-retardant material, comprises following preparation process:
Step one, takes each component according to weight part;
Step 2, by polyvinyl resin, pure aluminium silicate, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose stir in stirrer for mixing, obtain mixture one;
Step 3, is transferred in reactor by mixture one, adds polyethylene glycol-800, epoxy chloropropane, is heated to 68 DEG C, stirs 40 minutes, then adds Fe (OH)
3colloid, continues stirring 25 minutes, obtains mixture two;
Step 4, joins in mixture two by polymer, in vacuum tightness be the heated under vacuum of 0.02MPa to 65 DEG C, stir 42 minutes, then keep vacuum tightness, cool the temperature to 46 DEG C, add dibutyl tin laurate, continue stirring 70 minutes, be down to room temperature, obtain mixture three;
Step 5, crosses rolling press calendering formation by mixture threeway, and wherein rolling temperature is 110 DEG C, obtains heat insulation flame-retardant material.
Embodiment 4
A kind of heat insulation flame-retardant material, comprises in components by weight percent: polyvinyl resin 7 parts, epoxy chloropropane 8 parts, Calucium Silicate powder 9 parts, Macrogol 2000 8 parts, Al (OH)
310 parts, colloid, polymer 14 parts, 10 parts, diatomite, silicon-dioxide 6 parts, tolylene diisocyanate 5 parts, dibutyl tin laurate 3 parts, hypromellose 4 parts.
Wherein said polymeric preparation process is as follows:
According to weight part, 20 parts, vinylformic acid and 140 parts, water are joined in reactor, then under the condition stirred, 7 parts, calcium oxide is added, after question response mixed solution bleach, with sodium hydroxide, system pH is transferred to 9, then acrylamide 38 parts is added, stirring makes acrylamide dissolve, add 30 parts, dodecyl lipid acid again, 14 parts, vegetable fibre, system is warming up to 46 DEG C, add ammonium persulphate 6 parts and diethylenetriamine 3 parts, stir 5 hours under keeping temperature-resistant condition, obtain polymer, again by polymer shear granulation, and ovendry power is broken to 60 orders under 125 DEG C of conditions, obtained polymer finished product.
The preparation method of above-described heat insulation flame-retardant material, comprises following preparation process:
Step one, takes each component according to weight part;
Step 2, by polyvinyl resin, Calucium Silicate powder, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose stir in stirrer for mixing, obtain mixture one;
Step 3, is transferred in reactor by mixture one, adds Polyethylene Glycol-600, epoxy chloropropane, is heated to 70 DEG C, stirs 45 minutes, then adds Al (OH)
3colloid, continues stirring 20 minutes, obtains mixture two;
Step 4, joins in mixture two by polymer, in vacuum tightness be the heated under vacuum of 0.01MPa to 70 DEG C, stir 46 minutes, then keep vacuum tightness, cool the temperature to 48 DEG C, add dibutyl tin laurate, continue stirring 72 minutes, be down to room temperature, obtain mixture three;
Step 5, crosses rolling press calendering formation by mixture threeway, and wherein rolling temperature is 110 DEG C, obtains heat insulation flame-retardant material.
Embodiment 5
A kind of heat insulation flame-retardant material, comprise in components by weight percent: polyvinyl resin 8 parts, epoxy chloropropane 8 parts, Magnesium Silicate q-agent 10 parts, Polyethylene Glycol-600 8 parts, siliceous colloid 11 parts, polymer 13 parts, 10 parts, diatomite, silicon-dioxide 7 parts, tolylene diisocyanate 6 parts, dibutyl tin laurate 3 parts, hypromellose 4 parts.
Wherein said polymeric preparation process is as follows:
According to weight part, 20 parts, vinylformic acid and 147 parts, water are joined in reactor, then under the condition stirred, 7 parts, calcium oxide is added, after question response mixed solution bleach, with sodium hydroxide, system pH is transferred to 9, then acrylamide 40 parts is added, stirring makes acrylamide dissolve, add 30 parts, dodecyl lipid acid again, 13 parts, vegetable fibre, system is warming up to 46 DEG C, add ammonium persulphate 4 parts and diethylenetriamine 4 parts, stir 5 hours under keeping temperature-resistant condition, obtain polymer, again by polymer shear granulation, and ovendry power is broken to 80 orders under 130 DEG C of conditions, obtained polymer finished product.
The preparation method of above-described heat insulation flame-retardant material, comprises following preparation process:
Step one, takes each component according to weight part;
Step 2, by polyvinyl resin, Magnesium Silicate q-agent, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose stir in stirrer for mixing, obtain mixture one;
Step 3, is transferred in reactor by mixture one, adds polyethylene glycol-800, epoxy chloropropane, is heated to 70 DEG C, stirs 50 minutes, then adds siliceous colloid, continues stirring 30 minutes, obtains mixture two;
Step 4, joins in mixture two by polymer, in vacuum tightness be the heated under vacuum of 0.03MPa to 68 DEG C, stir 50 minutes, then keep vacuum tightness, cool the temperature to 50 DEG C, add dibutyl tin laurate, continue stirring 73 minutes, be down to room temperature, obtain mixture three;
Step 5, crosses rolling press calendering formation by mixture threeway, and wherein rolling temperature is 120 DEG C, obtains heat insulation flame-retardant material.
Embodiment 6
A kind of heat insulation flame-retardant material, comprise in components by weight percent: polyvinyl resin 8 parts, epoxy chloropropane 8 parts, Magnesium Silicate q-agent 10 parts, polyethylene glycol-800 10 parts, siliceous colloid 12 parts, polymer 15 parts, 10 parts, diatomite, silicon-dioxide 7 parts, tolylene diisocyanate 6 parts, dibutyl tin laurate 3 parts, hypromellose 4 parts.
Wherein said polymeric preparation process is as follows:
According to weight part, 20 parts, vinylformic acid and 150 parts, water are joined in reactor, then under the condition stirred, 8 parts, calcium oxide is added, after question response mixed solution bleach, with sodium hydroxide, system pH is transferred to 9, then acrylamide 40 parts is added, stirring makes acrylamide dissolve, add 30 parts, dodecyl lipid acid again, 15 parts, vegetable fibre, system is warming up to 50 DEG C, add ammonium persulphate 6 parts and diethylenetriamine 4 parts, stir 5 hours under keeping temperature-resistant condition, obtain polymer, again by polymer shear granulation, and ovendry power is broken to 80 orders under 130 DEG C of conditions, obtained polymer finished product.
The preparation method of above-described heat insulation flame-retardant material, comprises following preparation process:
Step one, takes each component according to weight part;
Step 2, by polyvinyl resin, Magnesium Silicate q-agent, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose stir in stirrer for mixing, obtain mixture one;
Step 3, is transferred in reactor by mixture one, adds polyethylene glycol-800, epoxy chloropropane, is heated to 70 DEG C, stirs 50 minutes, then adds siliceous colloid, continues stirring 30 minutes, obtains mixture two;
Step 4, joins in mixture two by polymer, in vacuum tightness be the heated under vacuum of 0.03MPa to 70 DEG C, stir 50 minutes, then keep vacuum tightness, cool the temperature to 50 DEG C, add dibutyl tin laurate, continue stirring 80 minutes, be down to room temperature, obtain mixture three;
Step 5, crosses rolling press calendering formation by mixture threeway, and wherein rolling temperature is 120 DEG C, obtains heat insulation flame-retardant material.
Reference examples 1
A kind of heat insulation flame-retardant material, comprises in components by weight percent: polyvinyl resin 6 parts, epoxy chloropropane 7 parts, pure aluminium silicate 8 parts, polyethylene glycol-800 7 parts, Fe (OH)
38 parts, colloid, 9 parts, diatomite, silicon-dioxide 5 parts, tolylene diisocyanate 4 parts, dibutyl tin laurate 3 parts, hypromellose 3 parts.
The preparation method of above-described heat insulation flame-retardant material, comprises following preparation process:
Step one, takes each component according to weight part;
Step 2, by polyvinyl resin, pure aluminium silicate, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose stir in stirrer for mixing, obtain mixture one;
Step 3, is transferred in reactor by mixture one, adds polyethylene glycol-800, epoxy chloropropane, is heated to 68 DEG C, stirs 40 minutes, then adds Fe (OH)
3colloid, continues stirring 25 minutes, obtains mixture two;
Step 4, by mixture two in vacuum tightness be the heated under vacuum of 0.02MPa to 65 DEG C, stir 42 minutes, then keep vacuum tightness, cool the temperature to 46 DEG C, add dibutyl tin laurate, continue stirring 70 minutes, be down to room temperature,
To mixture three;
Step 5, crosses rolling press calendering formation by mixture threeway, and wherein rolling temperature is 110 DEG C, obtains heat insulation flame-retardant material.
Reference examples 2
A kind of heat insulation flame-retardant material, comprises in components by weight percent: polyvinyl resin 6 parts, epoxy chloropropane 7 parts, pure aluminium silicate 8 parts, polyethylene glycol-800 7 parts, Fe (OH)
38 parts, colloid, polymer 13 parts, 9 parts, diatomite, silicon-dioxide 5 parts, tolylene diisocyanate 4 parts, dibutyl tin laurate 3 parts, hypromellose 3 parts.
Wherein said polymeric preparation process is as follows:
According to weight part, 18 parts, vinylformic acid and 140 parts, water are joined in reactor, then under the condition stirred, 6 parts, calcium oxide is added, after question response mixed solution bleach, with sodium hydroxide, system pH is transferred to 8, then acrylamide 36 parts is added, stirring makes acrylamide dissolve, add 25 parts, dodecyl lipid acid again, 12 parts, vegetable fibre, system is warming up to 48 DEG C, add ammonium persulphate 4 parts and diethylenetriamine 3 parts, stir 5 hours under keeping temperature-resistant condition, obtain polymer, again by polymer shear granulation, and ovendry power is broken to 80 orders under 125 DEG C of conditions, obtained polymer finished product.
The preparation method of above-described heat insulation flame-retardant material, comprises following preparation process:
Step one, takes each component according to weight part;
Step 2, by polyvinyl resin, pure aluminium silicate, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose stir in stirrer for mixing, obtain mixture one;
Step 3, is transferred in reactor by mixture one, adds polyethylene glycol-800, epoxy chloropropane, is heated to 68 DEG C, stirs 40 minutes, then adds Fe (OH)
3colloid, continues stirring 25 minutes, obtains mixture two;
Step 4, joins polymer in mixture two, is heated to 65 DEG C, stirs 42 minutes, then cools the temperature to 46 DEG C, add dibutyl tin laurate, continues stirring 70 minutes, is down to room temperature, obtains mixture three;
Step 5, crosses rolling press calendering formation by mixture threeway, and wherein rolling temperature is 110 DEG C, obtains heat insulation flame-retardant material.
Performance test is carried out to the heat insulation flame-retardant material that above embodiment and reference examples prepare, according to the heat insulation flame-retardant material described in above embodiment and reference examples preparation, and eventually passing through rolling press, to be rolled into material thickness be 15mm, carry out the mensuration of property indices, concrete outcome is as follows:
As can be seen from the above results, heat insulation flame-retardant material provided by the invention has excellent properties, wherein flame retardant properties reaches national A level, thermal conductivity reaches below 0.012W/mK, ultimate compression strength reaches more than 12MPa, it is without exception that acid resistance reaches more than 2200h, and it is without exception that alkaline resistance properties reaches more than 2100h, and resistance to neutral salt spray performance reaches more than the 2600h performance therefore with corrosion such as good fire-retardant, insulation, resistance to compression and antiacid alkali without exception.
Reference examples 1 and reference examples 2 are the further proving tests carried out on the basis of embodiment 3, wherein do not add polymer in reference examples 1, other processes are identical with embodiment 3, result can be found out, the thermal conductivity of the finished product has had great rising, heat-proof quality reduces, ultimate compression strength simultaneously, acid resistance, alkali resistance, resistance to neutral salt spray performance has decline in various degree, can draw, the thermal and insulating performance of the finished product greatly can be strengthened for polymeric introducing, this be due to polymer provided by the invention to temperature and psychromatic ratio more responsive, when envrionment temperature is more than 40 DEG C, this polymer can show certain volume-diminished and progressively semi-fluid, there is certain micro-structure change in the material internal that can make like this, there is some negative pressure holes in short period of time, further enhancing the heat insulating effect of material.In the middle of preparation process four, vacuum condition is not adopted in reference examples 2, other conditions are identical with embodiment 3, result can be found out, the thermal conductivity of the finished product has and comparatively significantly raises, and ultimate compression strength has obvious reduction, acid resistance simultaneously, alkali resistance, the decline of resistance to neutral salt spray performance all clearly, therefore can illustrate, in the process of preparation heat insulation flame-retardant material of the present invention, for very necessary during the vacuum condition adopted in step 4, under this condition, each component can interact to greatest extent, produce synergy, the properties of common raising the finished product.
Claims (10)
1. a heat insulation flame-retardant material, is characterized in that, comprises in components by weight percent: polyvinyl resin 3-8 part, epoxy chloropropane 5-8 part, silicate 5-10 part, polyoxyethylene glycol 5-10 part, mineral colloid 6-12 part, polymer 8-15 part, diatomite 5-10 part, silicon-dioxide 2-7 part, tolylene diisocyanate 2-6 part, dibutyl tin laurate 1-3 part, hypromellose 1-4 part; Wherein said polymer is for be obtained by polyreaction by acrylamide, water, vinylformic acid, ammonium persulphate, calcium oxide, diethylenetriamine, dodecyl lipid acid and vegetable fibre.
2. heat insulation flame-retardant material according to claim 1, is characterized in that, comprises in components by weight percent: polyvinyl resin 4-7 part, epoxy chloropropane 6-8 part, silicate 7-9 part, polyoxyethylene glycol 6-8 part, mineral colloid 7-10 part, polymer 11-14 part, diatomite 8-10 part, silicon-dioxide 4-6 part, tolylene diisocyanate 3-5 part, dibutyl tin laurate 2-3 part, hypromellose 2-4 part.
3. heat insulation flame-retardant material according to claim 1, it is characterized in that, described polymeric preparation process is for join in reactor by vinylformic acid and water, then under the condition stirred, calcium oxide is added, after question response mixed solution bleach, with sodium hydroxide, system pH is transferred to 7-9, then acrylamide is added, stirring makes acrylamide dissolve, add dodecyl lipid acid again, vegetable fibre, system is warming up to 40-50 DEG C, add ammonium persulphate and diethylenetriamine, 4-5 hour is stirred under keeping temperature-resistant condition, obtain polymer, again by polymer shear granulation, and dry pulverizing, obtained polymer finished product.
4. heat insulation flame-retardant material according to claim 3, it is characterized in that, in described polymeric preparation process, the amount that each material adds is following parts by weight: acrylamide 30-40 part, water 120-150 part, vinylformic acid 15-20 part, ammonium persulphate 2-6 part, calcium oxide 3-8 part, diethylenetriamine 1-4 part, dodecyl lipid acid 20-30 part, vegetable fibre 8-15 part.
5. heat insulation flame-retardant material according to claim 3, is characterized in that, in described polymeric preparation process, bake out temperature is 120-130 DEG C, and the particle diameter after pulverizing is 60-80 order.
6. heat insulation flame-retardant material according to claim 1, is characterized in that, described silicate is the one in water glass, potassium silicate, Calucium Silicate powder, pure aluminium silicate or Magnesium Silicate q-agent; Described polyoxyethylene glycol is Polyethylene Glycol-600, the one in polyethylene glycol-800 or Macrogol 2000.
7. heat insulation flame-retardant material according to claim 1, is characterized in that, described mineral colloid is siliceous colloid, Al (OH)
3colloid and Fe (OH)
3one in colloid.
8. a preparation method for heat insulation flame-retardant material according to claim 1, is characterized in that, comprises following preparation process:
Step one, takes each component according to weight part;
Step 2, by polyvinyl resin, silicate, diatomite, silicon-dioxide, tolylene diisocyanate and hypromellose stir in stirrer for mixing, obtain mixture one;
Step 3, is transferred in reactor by mixture one, adds polyoxyethylene glycol, epoxy chloropropane, be heated to 60-70 DEG C, stirs 30-50 minute, then adds mineral colloid, continues to stir 20-30 minute, obtains mixture two;
Step 4, joins polymer in mixture two, is heated to 60-70 DEG C under vacuum, stirs 30-50 minute, then keep vacuum tightness, cool the temperature to 40-50 DEG C, add dibutyl tin laurate, continue to stir 60-80 minute, be down to room temperature, obtain mixture three;
Step 5, crosses rolling press calendering formation by mixture threeway, obtains heat insulation flame-retardant material.
9. the preparation method of heat insulation flame-retardant material according to claim 8, is characterized in that, in step 4, the vacuum tightness of vacuum condition is 0.01-0.04MPa.
10. the preparation method of heat insulation flame-retardant material according to claim 8, is characterized in that, in step 5, rolling temperature is 100-120 DEG C.
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