CN109912296A - A kind of preparation method of low-temperature type water-permeable brick - Google Patents
A kind of preparation method of low-temperature type water-permeable brick Download PDFInfo
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Abstract
The present invention relates to a kind of preparation methods of low-temperature type water-permeable brick, belong to water-permeable brick technical field.Present invention preparation has the elastomeric material of excellent resistance to low temperature and fills into material hole, since elastomer steric hindrance is big, reduce the crystallization of soft segment under cryogenic in elastomer, it is made to be not susceptible to bursting by freezing, so effectively improving the resistance to low temperature of material；The present invention is that raw material prepares porous alumina ceramic material by aluminium oxide and talcum powder, the excellent hole and cellular structure having by it, suction-operated is effectively carried out with porous form surface, mixture elastomeric material can be adsorbed and enhance elastomer mixture gather materials between adhesiveness, reduce the direct contact gathered materials with moisture；Thicker elastomeric overmold layer can also be formed in surface of aggregate, moisture is reduced and enters inside mixture, to improve the ability that the compound mixture of elastomer particles resists freeze-thaw damage, effectively improve the resistance to low temperature of material.
Description
Technical field
The present invention relates to a kind of preparation methods of low-temperature type water-permeable brick, belong to water-permeable brick technical field.
Background technique
With the quickening of urbanization process, the waterproof regional percentage of urban surface is increased substantially, and gives urban environment and people
Live and bring huge negative effect, the construction in sponge city is extremely urgent.And cavernous body road surface water-permeable brick is as a kind of
New green environment protection building materials can effectively absorb infiltration rainwater because of its excellent storage water permeability, and recharge of groundwater resource is filled
Ground alleviation urban heat land effect and city is divided to see extra large phenomenon.
From material and production technology, it is other with ceramic water-permeable brick two major classes that water-permeable brick can be divided into baking-free water-permeable brick.It
Permeable mechanism be all using inside configuration hole carry out water storage, it is permeable.Baking-free water-permeable brick is predominantly main with cement
Cementing agent is aggregate with coarse sand granule or solid waste, compression moulding after raw material plus water are mixed, most afterwards can be straight after conserving
It connecing and comes into operation, this water-permeable brick porosity generally can achieve 20% or so, and simple process, cost is relatively low, practicability is stronger,
But durability and frost resistance are barely satisfactory.And ceramic water-permeable brick is fired through high temperature, has plenty of addition pore creating material method, pore creating material
Occupy certain volume in green body, can automatically remove or generate gas after firing processing, the sky for occupying its script
Between become stomata.Such as carbon granules, carbon dust, sawdust, lime stone, flyash etc. at high temperature can oxygenolysis or generation volume change
Substance；Another is with granulation mass area method, i.e., with red mud, gold tailings, waste ceramic, the solid waste such as building waste
For primary raw material, high temperature cosolvent is added after broken, screening, is realized after high temperature sintering by the gap between particle packing saturating
Water.Ceramic water-permeable brick intensity is high, benefits from that the service life is long, and wearability is good, has a wide range of application, but need to carry out high temperature firing, for burning
Knot equipment has certain requirement, and the consumption energy becomes larger and increases cost.
Water-permeable brick is upper in its performance and application, and the advantage for having entity brick body not have is mainly reflected in the following aspects:
(1) rainwater resource is rationally utilized, underground water is protected；Effective connected holes, can make to be deposited in ground when heavy rain inside water-permeable brick
Face rainwater rapidly penetrates into underground, and rainwater unserviceable in former city is added in underground water, underground water is prevented
On the one hand exhaustion alleviates the pressure of municipal drainage and flood control, on the one hand effectively stores rainwater resource and it is made to obtain benefit
With turning waste into wealth.
(2) living environment for improving cities and towns, improves quality of life；Not only there are connected holes inside water-permeable brick, also
There is the hole of semi-closed, the hole of these semi-closed imparts the good water retention property of water-permeable brick.Whenever rainy, laying it is big
Area water-permeable brick is equivalent to a huge reservoir, can build by a part of rainwater storage on ground surface compared to city
For building, the specific heat capacity of water is very big, when the moisture stored in water-permeable brick starts to warm up evaporation, can absorb a large amount of thermal energy, from
And the temperature for effectively slowing down city increases, and improves " tropical island effect ".(3) trade waste, protection ring are efficiently used
The recycling of resource is realized in border；Most of raw material that water-permeable brick uses at present from industrial waste, these waste materials it
Preceding most processing mode is all emergency burial, this can cause to seriously endanger to soil, causes the pollution of soil environment.And it is saturating
The development of water brick but gets up these for the garbage utilization of waste material, and waste is rationally on the one hand utilized, avoids discarded
Object burial is endangered caused by soil, and the use of water-permeable brick is on the other hand taken inherently to replace the use of other similar building materials,
Other raw materials of industry have been saved indirectly, have been played the role of at the aspect that economizes on resources no small.In addition these waste materials are substantially
By high-temperature process, make when sintering water-permeable brick into again, there will be no the generation of pernicious gas substantially, reduces indirectly useless
Abandon pollution.
Summary of the invention
The technical problems to be solved by the invention: for the problem that existing water-permeable brick resistance to low temperature is poor, one is provided
The preparation method of kind low-temperature type water-permeable brick.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) according to parts by weight, 45~50 parts of aluminium oxide, 10~15 part of 50 mesh talcum powder, 10~15 parts of modified height are weighed respectively
Ridge soil material, 6~8 parts of cornstarch and 45~50 parts of deionized waters are stirred and are placed in mortar, and grinding distribution is simultaneously collected
Disperse slurries, filter and collect filtrate, obtain filtrate and be poured into mold, be stirred juxtaposition and stand solidification at room temperature, demoulds
And blank is collected, and after blank drying, heating heating, heat preservation calcining 1~, standing is cooled to room temperature, and is crushed and is ground up, sieved, obtains
Porous matrix powder；
(2) according to parts by weight, respectively weigh 55~60 parts of dimethyl terephthalate (DMT)s, 15~20 parts of M-phthalic acids, 10~
15 parts of Isosorbide-5-Nitrae-butanediols and 10~15 parts of polytetramethylene glycols and 0.5~1.0 part of antioxidant 1010 are placed in three-necked flask, lead to nitrogen row
Except air, after the completion of being passed through, it is stirred and insulation reaction, heating heating keeps the temperature oil bath, reduced pressure treatment is stirred simultaneously
1~2h of insulation reaction, obtains reaction solution；
(3) in mass ratio 1: 3, porous matrix powder is added in deionized water, ultrasonic disperse, slurries must be dispersed and by quality
Than 1: 10, reaction solution is added in dispersion slurries while hot, is stirred and stands and be cooled to room temperature, filter and collect filter cake,
Vacuum freeze drying is simultaneously ground up, sieved, and obtains modified particles；
(4) according to parts by weight, 45~50 parts of ferronickel slags, 10~15 parts of modified particles, 3~8 parts of kaolin, 6 are weighed respectively
~8 parts of polyvinyl alcohol and 65~80 parts of deionized waters are placed in blender, are stirred juxtaposition ageing mixture at room temperature, collect ageing mixture
Slurries are placed in brick machine, compression moulding, after being dried at room temperature for, then are formed by a firing, and can be prepared into described low temperature resistant
Type water-permeable brick.
Blank drying temperature described in step (1) is 100~110 DEG C.
Heating described in step (1), which is heated to be, is warming up to 1250~1300 DEG C by 5 DEG C/min.
Filtering described in step (1) is using 0.5~0.8 μm of sieve.
It is 25~30mL/min that nitrogen described in step (2), which is passed through rate,.
Reduced pressure treatment pressure described in step (2) is 55~65Pa.
Compression moulding pressure described in step (2) is 80~100MPa.
The modified kaolin material preparation step are as follows:
(1) take Kaolin Tailings dry dried feed and ball milling dispersion, heating heating, heat preservation calcining, standing is cooled to room temperature, and receives
Collect calcining particle；
(2) in mass ratio 1: 15, calcining particle is added in hydrochloric acid, simultaneously insulation reaction is stirred, then be centrifugated, washes
It washs and dries, obtain modified kaolin material；
The ball milling dispersion rate is 250~300r/min.
The heating, which is heated to be, is warming up to 450~550 DEG C by 5 DEG C/min.
The present invention is compared with other methods, and advantageous effects are:
(1) technical solution of the present invention preparation has the elastomeric material of excellent resistance to low temperature and fills into material hole, by
It is big in elastomer steric hindrance, reduce the crystallization of soft segment under cryogenic in elastomer, exists to increase elastomer
Recoverability under cryogenic conditions, so that synthesized elastomer polymer shows better cold snap-back performance, this is low
Small part hydrone under temperature state cannot be introduced into material hole, and the volume after other parts hydrone freezes becomes larger, elasticity
Body effectively provides the support of micro-structure, it is made to be not susceptible to bursting by freezing, so effectively improving the resistance to low temperature of material；
(2) technical solution of the present invention is that raw material prepares porous alumina ceramic material by aluminium oxide and talcum powder, is had by it
The excellent hole and cellular structure having effectively carries out suction-operated with porous form surface, can adsorb mixture elastomer
Material and enhance elastomer mixture gather materials between adhesiveness, reduce the direct contact gathered materials with moisture；It can also be in the table that gathers materials
Face forms thicker elastomeric overmold layer, reduces moisture and enters inside mixture, supports to improve the compound mixture of elastomer particles
The ability that freeze thawing resistance destroys, effectively improves the resistance to low temperature of material；
(3) technical solution of the present invention uses modified kaolin material for raw material, since kaolin is a kind of the most abundant mineral money
Source has good absorption due to its unique layer structure, surface silicon oxygen groups abundant and strong ion-exchange capacity
Performance and reactivity, calcination make Coaseries kaolin slough the group in its trick oxygen octahedra, make the coordination of atom in kaolinite
By becoming to make the acid reactivity in metakaolinite or, form amorphous, the amorphous substance metakaolinite of high activity, due to
The active tetrahedron formed after calcination has acid reactivity, it is caused easily to carry out acid-leaching reaction with acidic materials, anti-with acid
During answering and the leaching of impurity etc. to form calcined coal kaolin particle surface more porous, to reach change, it compares table
The purpose of area, while Kaolin Tailings, by the modified part metakaolin formed, wherein the aluminium oxide of greater activity makes
It is reacted with hydrated product rapidly with rear, the entringite with Volumetric expansion is generated, when compensating for the sintering of permeable brick
Contraction, be conducive to the volume stability for mentioning permeable brick.
Specific embodiment
Take Kaolin Tailings be placed at 100~110 DEG C dry 20~for 24 hours, obtain dried feed and be placed in ball milling in ball mill
Disperse 2~3h, control ball milling speed is 250~300r/min, after the completion of ball milling, collects ball milling particle and presses 5 DEG C/min liter
Temperature is to 450~550 DEG C, and after 1~2h of heat preservation calcining, standing is cooled to room temperature, and is collected calcining particle and in mass ratio 1: 15, will be forged
It burns particle to be added in 0.8mol/L hydrochloric acid, is stirred and is placed in 1~2h of insulation reaction at 90~95 DEG C, then 1500~
It is centrifugated 10~15min under 2000r/min, washs and dry, obtains modified kaolin material；According to parts by weight, claim respectively
Measure 45~50 parts of aluminium oxide, 10~15 part of 50 mesh talcum powder, 10~15 parts of modified kaolin materials, 6~8 parts of cornstarch and 45
~50 parts of deionized waters are stirred and are placed in mortar, and grinding distribution simultaneously collects dispersion slurries, will dispersion slurries with 0.5~
0.8 μm of the screen to filtrate simultaneously collects filtrate, obtains filtrate and is poured into mold, be stirred juxtaposition stand at room temperature solidification 20~
For 24 hours, blank is demoulded and collected, blank is placed at 100~110 DEG C after 15~20min of drying, then is warming up to by 5 DEG C/min
1250~1300 DEG C, heat preservation 1~2h of calcining, standing is cooled to room temperature, and broken and ground 500 mesh obtains porous matrix powder；
According to parts by weight, 55~60 parts of dimethyl terephthalate (DMT)s, 15~20 parts of M-phthalic acids, 10~15 parts of Isosorbide-5-Nitraes-are weighed respectively
Butanediol and 10~15 parts of polytetramethylene glycols and 0.5~1.0 part of antioxidant 1010 are placed in three-necked flask, are led to nitrogen and are excluded air,
It is that 25~30mL/min is stirred after the completion of being passed through and is placed in insulation reaction at 75~80 DEG C that control nitrogen, which is passed through rate,
15~20min is heated to 210~220 DEG C by 2 DEG C/min heating, after keeping the temperature 1~2h of oil bath, is decompressed to 55~65Pa, stirring is mixed
Merge 1~2h of insulation reaction, obtains reaction solution；In mass ratio 1: 3, porous matrix powder is added in deionized water, 200~
Under 300W after 10~15min of ultrasonic disperse, slurries and in mass ratio 1: 10 must be dispersed, reaction solution is added to dispersion slurries while hot
In, it is stirred and stands and be cooled to room temperature, filter and collect filter cake, vacuum freeze drying and ground 200 mesh, obtain modification
Particle；According to parts by weight, 45~50 parts of ferronickel slags, 10~15 parts of modified particles, 3~8 parts of kaolin, 6~8 are weighed respectively
Part polyvinyl alcohol and 65~80 parts of deionized waters are placed in blender, are stirred juxtaposition ageing mixture 20~for 24 hours at room temperature, are collected
Ageing mixture slurries are placed in brick machine, the compression moulding at 80~100MPa, be dried at room temperature for 20~for 24 hours after, then 1150
It is formed by a firing at~1200 DEG C, the low-temperature type water-permeable brick can be prepared into.
It takes Kaolin Tailings to be placed at 100 DEG C dry 20h, obtains dried feed and be placed in ball milling dispersion 2h, control in ball mill
Ball milling speed processed is 250r/min, after the completion of ball milling, collects ball milling particle and is warming up to 450 DEG C by 5 DEG C/min, heat preservation calcining
After 1h, standing is cooled to room temperature, and collects calcining particle and in mass ratio 1: 15, calcining particle is added to 0.8mol/L hydrochloric acid
In, it is stirred and is placed in insulation reaction 1h at 90 DEG C, then be centrifugated 10min at 1500r/min, wash and dry, obtain
Modified kaolin material；According to parts by weight, 45 parts of aluminium oxide, 10 part of 50 mesh talcum powder, 10 parts of modified kaolins are weighed respectively
Material, 6 parts of cornstarch and 45 parts of deionized waters are stirred and are placed in mortar, and grinding distribution simultaneously collects dispersion slurries, will
Dispersion slurries with 0.5 μm of the screen to filtrate and collect filtrate, obtain filtrate and are poured into mold, are stirred juxtaposition and stand at room temperature
Solidify 20h, demould and collect blank, blank is placed at 100 DEG C after drying 15min, then be warming up to 1250 DEG C by 5 DEG C/min,
Heat preservation calcining 1h, standing are cooled to room temperature, and broken and ground 500 mesh obtains porous matrix powder；According to parts by weight, divide
Also known as measure 55 parts of dimethyl terephthalate (DMT)s, 15 parts of M-phthalic acids, 10 parts of Isosorbide-5-Nitrae-butanediols and 10 parts of polytetramethylene glycols and 0.5 part
Antioxidant 1010 is placed in three-necked flask, is led to nitrogen and is excluded air, it is 25mL/min that control nitrogen, which is passed through rate, is completed wait be passed through
Afterwards, it is stirred and is placed in insulation reaction 15min at 75 DEG C, be heated to 210 DEG C by 2 DEG C/min heating, after keeping the temperature oil bath 1h, subtract
It is depressed into 55Pa, simultaneously insulation reaction 1h is stirred, obtains reaction solution；In mass ratio 1: 3, porous matrix powder is added to deionization
In water, at 200W after ultrasonic disperse 10min, slurries and in mass ratio 1: 10 must be dispersed, reaction solution is added to dispersion while hot
It in slurries, is stirred and stands and be cooled to room temperature, filter and collect filter cake, vacuum freeze drying and ground 200 mesh, obtain
Modified particles；According to parts by weight, 45 parts of ferronickel slags, 10 parts of modified particles, 3 parts of kaolin, 6 parts of polyvinyl alcohol are weighed respectively
It is placed in blender with 65 parts of deionized waters, is stirred juxtaposition ageing mixture 20h at room temperature, collected ageing mixture slurries and be placed in pressure brick
In machine, the compression moulding at 80MPa after being dried at room temperature for 20h, then is formed by a firing at 1150 DEG C, can be prepared into described
Low-temperature type water-permeable brick.
It takes Kaolin Tailings to be placed at 105 DEG C dry 22h, obtains dried feed and be placed in ball milling dispersion 2h, control in ball mill
Ball milling speed processed is 275r/min, after the completion of ball milling, collects ball milling particle and is warming up to 500 DEG C by 5 DEG C/min, heat preservation calcining
After 1h, standing is cooled to room temperature, and collects calcining particle and in mass ratio 1: 15, calcining particle is added to 0.8mol/L hydrochloric acid
In, it is stirred and is placed in insulation reaction 1h at 92 DEG C, then be centrifugated 12min at 1750r/min, wash and dry, obtain
Modified kaolin material；According to parts by weight, 47 parts of aluminium oxide, 12 part of 50 mesh talcum powder, 12 parts of modified kaolins are weighed respectively
Material, 7 parts of cornstarch and 47 parts of deionized waters are stirred and are placed in mortar, and grinding distribution simultaneously collects dispersion slurries, will
Dispersion slurries with 0.6 μm of the screen to filtrate and collect filtrate, obtain filtrate and are poured into mold, are stirred juxtaposition and stand at room temperature
Solidify 22h, demould and collect blank, blank is placed at 105 DEG C after drying 18min, then be warming up to 1275 DEG C by 5 DEG C/min,
Heat preservation calcining 1h, standing are cooled to room temperature, and broken and ground 500 mesh obtains porous matrix powder；According to parts by weight, divide
Also known as measure 58 parts of dimethyl terephthalate (DMT)s, 18 parts of M-phthalic acids, 12 parts of Isosorbide-5-Nitrae-butanediols and 12 parts of polytetramethylene glycols and 0.8 part
Antioxidant 1010 is placed in three-necked flask, is led to nitrogen and is excluded air, it is 28mL/min that control nitrogen, which is passed through rate, is completed wait be passed through
Afterwards, it is stirred and is placed in insulation reaction 18min at 78 DEG C, be heated to 215 DEG C by 2 DEG C/min heating, after keeping the temperature oil bath 1h, subtract
It is depressed into 60Pa, simultaneously insulation reaction 1h is stirred, obtains reaction solution；In mass ratio 1: 3, porous matrix powder is added to deionization
In water, at 250W after ultrasonic disperse 12min, slurries and in mass ratio 1: 10 must be dispersed, reaction solution is added to dispersion while hot
It in slurries, is stirred and stands and be cooled to room temperature, filter and collect filter cake, vacuum freeze drying and ground 200 mesh, obtain
Modified particles；According to parts by weight, 47 parts of ferronickel slags, 12 parts of modified particles, 5 parts of kaolin, 7 parts of polyvinyl alcohol are weighed respectively
It is placed in blender with 75 parts of deionized waters, is stirred juxtaposition ageing mixture 22h at room temperature, collected ageing mixture slurries and be placed in pressure brick
In machine, the compression moulding at 90MPa after being dried at room temperature for 22h, then is formed by a firing at 1175 DEG C, can be prepared into described
Low-temperature type water-permeable brick.
It takes Kaolin Tailings to be placed in drying at 110 DEG C for 24 hours, to obtain dried feed and be placed in ball milling dispersion 3h, control in ball mill
Ball milling speed processed is 300r/min, after the completion of ball milling, collects ball milling particle and is warming up to 550 DEG C by 5 DEG C/min, heat preservation calcining
After 2h, standing is cooled to room temperature, and collects calcining particle and in mass ratio 1: 15, calcining particle is added to 0.8mol/L hydrochloric acid
In, it is stirred and is placed in insulation reaction 2h at 95 DEG C, then be centrifugated 15min at 2000r/min, wash and dry, obtain
Modified kaolin material；According to parts by weight, 50 parts of aluminium oxide, 15 part of 50 mesh talcum powder, 15 parts of modified kaolins are weighed respectively
Material, 8 parts of cornstarch and 50 parts of deionized waters are stirred and are placed in mortar, and grinding distribution simultaneously collects dispersion slurries, will
Dispersion slurries with 0.8 μm of the screen to filtrate and collect filtrate, obtain filtrate and are poured into mold, are stirred juxtaposition and stand at room temperature
Solidification for 24 hours, demoulds and collects blank, blank is placed at 110 DEG C after drying 20min, then be warming up to 1300 DEG C by 5 DEG C/min,
Heat preservation calcining 2h, standing are cooled to room temperature, and broken and ground 500 mesh obtains porous matrix powder；According to parts by weight, divide
Also known as measure 60 parts of dimethyl terephthalate (DMT)s, 20 parts of M-phthalic acids, 15 parts of Isosorbide-5-Nitrae-butanediols and 15 parts of polytetramethylene glycols and 1.0 parts
Antioxidant 1010 is placed in three-necked flask, is led to nitrogen and is excluded air, it is 30mL/min that control nitrogen, which is passed through rate, is completed wait be passed through
Afterwards, it is stirred and is placed in insulation reaction 20min at 80 DEG C, be heated to 220 DEG C by 2 DEG C/min heating, after keeping the temperature oil bath 2h, subtract
It is depressed into 65Pa, simultaneously insulation reaction 2h is stirred, obtains reaction solution；In mass ratio 1: 3, porous matrix powder is added to deionization
In water, at 300W after ultrasonic disperse 15min, slurries and in mass ratio 1: 10 must be dispersed, reaction solution is added to dispersion while hot
It in slurries, is stirred and stands and be cooled to room temperature, filter and collect filter cake, vacuum freeze drying and ground 200 mesh, obtain
Modified particles；According to parts by weight, 50 parts of ferronickel slags, 15 parts of modified particles, 8 parts of kaolin, 8 parts of polyvinyl alcohol are weighed respectively
It is placed in blender with 80 parts of deionized waters, being stirred juxtaposition, ageing mixture for 24 hours, collects ageing mixture slurries and is placed in pressure brick at room temperature
In machine, the compression moulding at 100MPa after being dried at room temperature for for 24 hours, then is formed by a firing at 1200 DEG C, can be prepared into described
Low-temperature type water-permeable brick.
Reference examples: the water-permeable brick of Dongguan company production.
The water-permeable brick that example and reference examples are prepared is detected, specific detection is as follows:
Flexural strength: flexural strength is measured using 3 bending methods.
Coefficient of permeability: according to GB/T25993-2010 " permeable pavement brick and porous pavement plate " standard, using stablizing hydraulic pressure
Method measures coefficient of permeability.
Freezing and thawing performance: sample is placed in testing machine, and the interval of sample and sample should be greater than 20mm, this experiment uses
Freeze thawing resistance experimental machine be TDS-300 type freezing-thawing test machine, experiment can be automatically performed, setting solidification point is -15 DEG C, is freezed
Time 3h, thaw temperature are 15 DEG C, melt time 2h, and cycle-index is 25 times；After completing circulation, sample is taken out, with being in
The wet towel of water suction saturation state wipes the attached water of specimen surface, checks and records the defect situation of sample, advance therewith
Row compares.
Specific test result such as table 1.
1 performance characterization contrast table of table
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| Flexural strength/MPa | 49.9 | 49.0 | 47.8 | 30 |
| Coefficient of permeability/10-2cm/s | 2.89 | 2.88 | 2.76 | 1.31 |
| Compression strength loss rate/% | 7.28 | 7.49 | 7.83 | 24.93 |
As shown in Table 1, water-permeable brick prepared by the present invention has good lower temperature resistance, mechanical property and coefficient of permeability.
Claims (10)
1. a kind of preparation method of low-temperature type water-permeable brick, it is characterised in that specific preparation step are as follows:
(1) according to parts by weight, 45~50 parts of aluminium oxide, 10~15 part of 50 mesh talcum powder, 10~15 parts of modified height are weighed respectively
Ridge soil material, 6~8 parts of cornstarch and 45~50 parts of deionized waters are stirred and are placed in mortar, and grinding distribution is simultaneously collected
Disperse slurries, filter and collect filtrate, obtain filtrate and be poured into mold, be stirred juxtaposition and stand solidification at room temperature, demoulds
And blank is collected, and after blank drying, heating heating, heat preservation calcining 1~, standing is cooled to room temperature, and is crushed and is ground up, sieved, obtains
Porous matrix powder；
(2) according to parts by weight, respectively weigh 55~60 parts of dimethyl terephthalate (DMT)s, 15~20 parts of M-phthalic acids, 10~
15 parts of Isosorbide-5-Nitrae-butanediols and 10~15 parts of polytetramethylene glycols and 0.5~1.0 part of antioxidant 1010 are placed in three-necked flask, lead to nitrogen row
Except air, after the completion of being passed through, it is stirred and insulation reaction, heating heating keeps the temperature oil bath, reduced pressure treatment is stirred simultaneously
1~2h of insulation reaction, obtains reaction solution；
(3) in mass ratio 1: 3, porous matrix powder is added in deionized water, ultrasonic disperse, slurries must be dispersed and by quality
Than 1: 10, reaction solution is added in dispersion slurries while hot, is stirred and stands and be cooled to room temperature, filter and collect filter cake,
Vacuum freeze drying is simultaneously ground up, sieved, and obtains modified particles；
(4) according to parts by weight, 45~50 parts of ferronickel slags, 10~15 parts of modified particles, 3~8 parts of kaolin, 6 are weighed respectively
~8 parts of polyvinyl alcohol and 65~80 parts of deionized waters are placed in blender, are stirred juxtaposition ageing mixture at room temperature, collect ageing mixture
Slurries are placed in brick machine, compression moulding, after being dried at room temperature for, then are formed by a firing, and can be prepared into described low temperature resistant
Type water-permeable brick.
2. a kind of preparation method of low-temperature type water-permeable brick according to claim 1, it is characterised in that: step (1) is described
Blank drying temperature be 100~110 DEG C.
3. a kind of preparation method of low-temperature type water-permeable brick according to claim 1, it is characterised in that: step (1) is described
Heating be heated to be and be warming up to 1250~1300 DEG C by 5 DEG C/min.
4. a kind of preparation method of low-temperature type water-permeable brick according to claim 1, it is characterised in that: step (1) is described
Filtering using 0.5~0.8 μm of sieve.
5. a kind of preparation method of low-temperature type water-permeable brick according to claim 1, it is characterised in that: step (2) is described
Nitrogen be passed through rate be 25~30mL/min.
6. a kind of preparation method of low-temperature type water-permeable brick according to claim 1, it is characterised in that: step (2) is described
Reduced pressure treatment pressure be 55~65Pa.
7. a kind of preparation method of low-temperature type water-permeable brick according to claim 1, it is characterised in that: step (2) is described
Compression moulding pressure be 80~100MPa.
8. a kind of preparation method of low-temperature type water-permeable brick according to claim 1, it is characterised in that: step (1) is described
Modified kaolin material preparation step are as follows:
(1) take Kaolin Tailings dry dried feed and ball milling dispersion, heating heating, heat preservation calcining, standing is cooled to room temperature, and receives
Collect calcining particle；
(2) in mass ratio 1: 15, calcining particle is added in hydrochloric acid, simultaneously insulation reaction is stirred, then be centrifugated, washes
It washs and dries, obtain modified kaolin material.
9. a kind of preparation method of low-temperature type water-permeable brick according to claim 8, it is characterised in that: the ball milling point
Dissipating rate is 250~300r/min.
10. a kind of preparation method of low-temperature type water-permeable brick according to claim 8, it is characterised in that: the heating
It is heated to be and is warming up to 450~550 DEG C by 5 DEG C/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910136949.7A CN109912296A (en) | 2019-02-25 | 2019-02-25 | A kind of preparation method of low-temperature type water-permeable brick |
Applications Claiming Priority (1)
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| CN114561168A (en) * | 2022-03-18 | 2022-05-31 | 东营市银丰进出口有限公司 | Glutinous rice cake mud for building and preparation method thereof |
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