CN106542774A - A kind of polyacrylonitrile fibre strengthens crack resistance type diatom mud material and preparation method thereof - Google Patents

A kind of polyacrylonitrile fibre strengthens crack resistance type diatom mud material and preparation method thereof Download PDF

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CN106542774A
CN106542774A CN201610945915.9A CN201610945915A CN106542774A CN 106542774 A CN106542774 A CN 106542774A CN 201610945915 A CN201610945915 A CN 201610945915A CN 106542774 A CN106542774 A CN 106542774A
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polyacrylonitrile fibre
diatom mud
crack resistance
powder
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李绍龙
唐世家
吴沁
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Dongguan Environmental Protection Technology Co Ltd
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Dongguan Environmental Protection Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/28Polysaccharides or derivatives thereof
    • C04B26/285Cellulose or derivatives thereof, e.g. starch
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00025Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52Sound-insulating materials

Abstract

The invention discloses a kind of polyacrylonitrile fibre strengthens crack resistance type diatom mud material and preparation method thereof, the polyacrylonitrile fibre strengthens crack resistance type diatom mud material to be included according to mass fraction:15~35 parts of kieselguhr, 20~40 parts of ground calcium carbonate, 8~20 parts of sierozem powers, 8~20 parts of quartz sands, 2~5 parts of nano titanium oxides, 1~4 part of anion powder, 0.5~2.5 part of cellulose ether, 0.1~0.5 part of pre-gelatinized starch and 0.1~2 part of polyacrylonitrile fibre.Biological binding agent of the application by addition safety and environmental protection, with reference to the polyacrylonitrile fibre for strengthening cracking resistance, so as to play water conservation moisturizing, the effect of adhesion strength is increased substantially, and the toughness and cracking resistance of wall material are enhanced, is conducive to improving surface of wall intensity, is difficult dry linting.

Description

A kind of polyacrylonitrile fibre strengthens crack resistance type diatom mud material and preparation method thereof
Technical field
The present invention relates to building material technical field, and in particular to a kind of polyacrylonitrile fibre strengthens crack resistance type diatom ooze material Material and preparation method thereof.
Background technology
Diatom mud material enjoys pursuing for finishing owner because of its excellent environmental-protecting performance, and its interior porosity is up to 90%, moisturizing, absorption particulate in air and toxic and harmful can be played a part of, how diatom ooze is played to greatest extent The advantage performance of material, while strengthen its intensity, adhesive force, is ground with meeting the increasingly diversified house ornamentation market of demand and becoming industry The emphasis studied carefully.
The Chinese patent literature of Publication No. CN105399369A disclose a kind of environment-friendly and energy-efficient diatom ooze coating and its Preparation method, the environment-friendly and energy-efficient diatom ooze coating is by sierozem power, titanium dioxide, quartz sand, nano titanium oxide, kieselguhr, hydroxyl Propyl methocel, carboxymethyl starch sodium, EVA rubber powders, appropriate toner, antifungus agent, heat insulating reflecting functional material composition, although Accomplish environmental protection, but EVA rubber powders have easily blocked micropore, made diatom ooze lose breath effect, in addition cannot in the material The change of temperature in work progress is adapted to, it is easily cracking.
The Chinese patent literature of Publication No. CN101704656A discloses a kind of inner-wall coating composition, the interior wall coating Compositionss are made up of kieselguhr, curing materials, function auxiliary material, framework material, flaxen fiber and titanium dioxide, wherein curing materials Using conch meal or the mixture of conch meal and 4A zeolite powders;The casein and Sargassum rubber powder of function auxiliary material breathability it is mixed Compound;Framework material is dolomite sand, although be made up of natural materials completely, but its poor durability, adhesive strength are low, while nothing Method adapts to the change of temperature in work progress, fold and cracking easily occurs.
Also there are some adsorb the diatom mud material of harmful substance in air at this stage on the market, but general strength is inclined Low, poor water retention property, easy shedding, are difficult to promote.Therefore, it is badly in need of a kind of adhesive strength height, durability is strong, adapt to the change of temperature Algae mud material.
The content of the invention
It is an object of the invention to provide a kind of cementability is high, durability is strong, poly- without harmful substance and free formaldehyde Dralon strengthens crack resistance type diatom mud material and preparation method thereof, while having preferable toughness, can alleviate and become because of temperature The diatom ooze internal stress changed and change, increased the function of the cracking resistance of material, and its performance indications meets JC/T 2177-2013 《Diatom ooze decorative wall material》Requirement.
For achieving the above object, the invention provides a kind of polyacrylonitrile fibre strengthens crack resistance type diatom mud material.Specifically Ground, the polyacrylonitrile fibre strengthens crack resistance type diatom mud material to be included according to mass fraction:15~35 parts of kieselguhr, 20~40 Part ground calcium carbonate, 8~20 parts of sierozem powers, 8~20 parts of quartz sand, 2~5 parts of nano titanium oxides, 1~4 part of anion powder, 0.5~2.5 part of cellulose ether, 0.1~0.5 part of pre-gelatinized starch and 0.1~2 part of polyacrylonitrile fibre.
Preferably, the polyacrylonitrile fibre strengthens crack resistance type diatom mud material and includes according to mass fraction:20~30 parts Kieselguhr, 25~35 parts of ground calcium carbonate, 14~18 parts of sierozem powers, 14~16 parts of quartz sand, 3~4 parts of nano titanium oxides, 2 ~3 parts of anion powder, 1~2 part of cellulose ether, 0.2~0.4 part of pre-gelatinized starch and 0.15~0.8 part of polyacrylonitrile fibre.
Preferably, the polyacrylonitrile fibre strengthens crack resistance type diatom mud material and includes according to mass fraction:28 portions of diatoms Soil, 30 parts of ground calcium carbonate, 18 parts of sierozem powers, 16 parts of quartz sands, 3 parts of nano titanium oxides, 3 parts of anion powder, 1.5 parts of fibers Plain ether, 0.3 part of pre-gelatinized starch and 0.15 part of polyacrylonitrile fibre.
Preferably, in the kieselguhr, dioxide-containing silica is no less than 90%.
Preferably, the ground calcium carbonate particle diameter be 23~150 μm, the sierozem power particle diameter be 23~150 μm;The stone Sand particle diameter is 150~830 μm;The anion powder particle diameter is 3.3~13 μm;The pre-gelatinized starch particle diameter is less than 160 μm; The viscosity of cellulose ether is 20000~200000;The polyacrylonitrile fibre is a diameter of 5~80 μm, and length is 5~20mm.
Preferably, the nano titanium oxide is rutile-type or the one kind in anatase titanium dioxide.
Preferably, the nano titanium oxide is powder body or liquid.
Preferably, the cellulose ether be carboxymethyl starch sodium, sodium carboxymethyl cellulose, in hydroxypropyl methyl cellulose One or more.
Preferably, the pre-gelatinized starch is the one kind in potato starch, corn starch or Maninot esculenta crantz. pre-gelatinized starch.
Second aspect present invention provides a kind of polyacrylonitrile fibre strengthens the preparation method of crack resistance type diatom mud material.Tool Body ground, the method comprising the steps of:
Step one, prepare mixed-powder:By kieselguhr, ground calcium carbonate, sierozem power, quartz sand, anion powder, cellulose Ether and pre-gelatinized starch are full and uniform, and mixed-powder is obtained;
Step 2, prepare nano titanium oxide mixed solution:After by nano titanium oxide and water mixing, in 30~60KHz Ultrasonic disperse is to uniform;
Step 3, prepare mixed slurry:Mixed-powder in step one is added to into nanometer obtained in step 2 while stirring In titanium dioxide mixed solution, fully mix, mixed slurry is obtained;
Step 4, polyacrylonitrile fibre monofilament is scatter, in adding mixed slurry, stir 1~5min, that is, be obtained poly- third Alkene nitrile fibre-reinforced anti-crack type diatom mud material;
Wherein, in the step 2, water and the mass ratio of mixed-powder in step 3 are 1:1~2.
The present invention is using this cold water instant dissolving of pre-gelatinized starch, adhesion strength be high, cheap and good-quality pure natural plant green Adhesive, obtains novel inorganic gelling system with cellulose ether compounding;Polyacrylonitrile fibre is chosen simultaneously as reinforcing fiber, is gathered Interfacial Adsorption bonding force and mechanical interlocking between Dralon and diatom ooze base material etc. increased the crack resistance of material, fine Dimension dispersibles the energy of contraction, enhances the toughness of wall material, while the diatom ooze internal stress that temperature change causes is alleviated, from And avoid the probability of cracking and fold in work progress.
The invention has the advantages that:
1st, polyacrylonitrile fibre of the invention strengthens crack resistance type diatom mud material, does not contain any noxious substance, by adding Enter the biorenewable cellulose ether and pre-gelatinized starch of safety and environmental protection, and with reference to the advantage of the two, so as to reach water conservation moisturizing, Increase substantially the effect of adhesion strength.
2nd, the present invention is without harmful VOC and free formaldehyde, simple production process, with fire-retardant and The advantage of environmental protection, and the diatom ooze internal stress that temperature change causes is alleviated by polyacrylonitrile fibre, so as to avoid The probability of cracking and fold in work progress, its combination property are better than existing diatom mud material.
3rd, polyacrylonitrile fibre of the invention strengthens crack resistance type diatom mud material, with kieselguhr, ground calcium carbonate, grey calcium Powder, quartz sand, nano titanium oxide, anion powder and polyacrylonitrile fibre are raw material, reproducible gluing with reference to nonhazardouss Agent cellulose ether and pre-gelatinized starch, with simple production process, reaction condition is gentle, the characteristics of low production cost, it is easy to big Scale popularization and application.
Specific embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment 1
The polyacrylonitrile fibre of the present embodiment strengthens the preparation method of crack resistance type diatom mud material, prepares according to the following steps:
Step one, prepare mixed-powder:By kieselguhr that 28 parts of silicone contents are 90%, the heavy carbonic acid of 45 μm of 30 parts of particle diameters Calcium, the sierozem power of 23 μm of 18 parts of particle diameters, 16 parts of particle diameters, 450 μm of quartz sands, the anion powder of 12 μm of 3 parts of particle diameters, 0.5 part of viscosity are 80000 carboxymethyl starch sodium, 1 part of viscosity are the corn starch of 150 μm of 200000 hydroxypropyl methyl celluloses and 0.3 part of particle diameter It is full and uniform, mixed-powder is obtained;
Step 2, prepare nano titanium oxide mixed solution:3 parts of nanometer anatase titania powder body and water are mixed Afterwards, in 60KHz ultrasonic disperses to uniform;
Step 3, prepare mixed slurry:Mixed-powder in step one is added to into nanometer obtained in step 2 while stirring In titanium dioxide mixed solution, fully mix, mixed slurry is obtained;
Step 4, by 0.2 part a diameter of 13 μm, length scatter for the polyacrylonitrile fibre monofilament of 12mm, adds mixing 1min is stirred in slurry, that is, polyacrylonitrile fibre is obtained strengthens crack resistance type diatom mud material;
Wherein, in the step 2, water and the mass ratio of mixed-powder in step 3 are 1:2.
Embodiment 2
The polyacrylonitrile fibre of the present embodiment strengthens the preparation method of crack resistance type diatom mud material, prepares according to the following steps:
Step one, prepare mixed-powder:By kieselguhr that 15 parts of silicone contents are 93%, the heavy carbonic acid of 23 μm of 35 parts of particle diameters Calcium, the sierozem power of 150 μm of 16 parts of particle diameters, the quartz sand of 800 μm of 20 parts of particle diameters, the anion powder of 8 μm of 2 parts of particle diameters, 1 part of viscosity are The hydroxypropyl that sodium carboxymethyl cellulose that 60000 carboxymethyl starch sodium, 0.5 part of viscosity are 120000,0.5 part of viscosity are 100000 The Maninot esculenta crantz. pre-gelatinized starch of 120 μm of ylmethyl cellulose and 0.5 part of particle diameter is full and uniform, and mixed-powder is obtained;
Step 2, prepare nano titanium oxide mixed solution:3 parts of rutile-type nano titania powders and water are mixed Afterwards, in 30KHz ultrasonic disperses to uniform;
Step 3, prepare mixed slurry:Mixed-powder in step one is added to into nanometer obtained in step 2 while stirring In titanium dioxide mixed solution, fully mix, mixed slurry is obtained;
Step 4, by 0.8 part a diameter of 5 μm, length scatter for the polyacrylonitrile fibre monofilament of 5mm, adds mixing slurry 2min is stirred in material, that is, polyacrylonitrile fibre is obtained strengthens crack resistance type diatom mud material;
Wherein, in the step 2, water and the mass ratio of mixed-powder in step 3 are 1:1.8.
Embodiment 3
The polyacrylonitrile fibre of the present embodiment strengthens the preparation method of crack resistance type diatom mud material, prepares according to the following steps:
Step one, prepare mixed-powder:By kieselguhr that 18 parts of silicone contents are 92%, the heavy carbon of 150 μm of 40 parts of particle diameters Sour calcium, the sierozem power of 90 μm of 12 parts of particle diameters, the quartz sand of 830 μm of 10 parts of particle diameters, the anion powder of 10 μm of 1 part of particle diameter, 0.2 part glue Spend 100 μm of hydroxypropyl methyl cellulose that the carboxymethyl starch sodium for 80000,0.3 part of viscosity are 80000 and 0.1 part of particle diameter Potato starch is full and uniform, and mixed-powder is obtained;
Step 2, prepare nano titanium oxide mixed solution:5 parts of rutile-type nano titania powders and water are mixed Afterwards, in 45KHz ultrasonic disperses to uniform;
Step 3, prepare mixed slurry:Mixed-powder in step one is added to into nanometer obtained in step 2 while stirring In titanium dioxide mixed solution, fully mix, mixed slurry is obtained;
Step 4, by 2 parts a diameter of 60 μm, length scatter for the polyacrylonitrile fibre monofilament of 20mm, adds mixing slurry 5min is stirred in material, that is, polyacrylonitrile fibre is obtained strengthens crack resistance type diatom mud material;
Wherein, in the step 2, water and the mass ratio of mixed-powder in step 3 are 1:1.
Embodiment 4
The polyacrylonitrile fibre of the present embodiment strengthens the preparation method of crack resistance type diatom mud material, prepares according to the following steps:
Step one, prepare mixed-powder:By kieselguhr that 30 parts of silicone contents are 95%, the heavy carbonic acid of 80 μm of 22 parts of particle diameters Calcium, the sierozem power of 60 μm of 20 parts of particle diameters, the quartz sand of 600 μm of 8 parts of particle diameters, the anion powder of 3.3 μm of 4 parts of particle diameters, 0.8 part of viscosity Sodium carboxymethyl cellulose and 1 part of particle diameter, 130 μm of potato starch for 20000 is full and uniform, and mixed-powder is obtained;
Step 2, prepare nano titanium oxide mixed solution:4 parts of rutile-type nano titania powders and water are mixed Afterwards, in 50KHz ultrasonic disperses to uniform;
Step 3, prepare mixed slurry:Mixed-powder in step one is added to into nanometer obtained in step 2 while stirring In titanium dioxide mixed solution, fully mix, mixed slurry is obtained;
Step 4, by 1.3 parts a diameter of 50 μm, length scatter for the polyacrylonitrile fibre monofilament of 16mm, adds mixing 4min is stirred in slurry, that is, polyacrylonitrile fibre is obtained strengthens crack resistance type diatom mud material;
Wherein, in the step 2, water and the mass ratio of mixed-powder in step 3 are 1:1.4.
Embodiment 5
The polyacrylonitrile fibre of the present embodiment strengthens the preparation method of crack resistance type diatom mud material, prepares according to the following steps:
Step one, prepare mixed-powder:By kieselguhr that 35 parts of silicone contents are 91%, the heavy carbon of 120 μm of 20 parts of particle diameters Sour calcium, the sierozem power of 70 μm of 8 parts of particle diameters, the quartz sand of 150 μm of 17 parts of particle diameters, the anion powder of 13 μm of 3 parts of particle diameters, 2.5 parts glue Spend for 40000 hydroxypropyl methyl cellulose and 90 μm of 2 parts of particle diameters corn starch it is full and uniform, mixed-powder is obtained;
Step 2, prepare nano titanium oxide mixed solution:2 parts of nanometer anatase titania powder body and water are mixed Afterwards, in 40KHz ultrasonic disperses to uniform;
Step 3, prepare mixed slurry:Mixed-powder in step one is added to into nanometer obtained in step 2 while stirring In titanium dioxide mixed solution, fully mix, mixed slurry is obtained;
Step 4, by 0.1 part a diameter of 40 μm, length scatter for the polyacrylonitrile fibre monofilament of 10mm, adds mixing 3min is stirred in slurry, that is, polyacrylonitrile fibre is obtained strengthens crack resistance type diatom mud material;
Wherein, in the step 2, water and the mass ratio of mixed-powder in step 3 are 1:1.2.
Prior art has been usually added into virulent organic latex powder to ensure adhesion strength, gluing used by the present invention Agent is bio-renewable cellulose ether and pre-gelatinized starch, combines the advantage of the two, reach water conservation after safety and environmental protection, and compounding Moisturizing, increases substantially the effect of adhesion strength;In addition, choosing polyacrylonitrile fibre as reinforcing fiber, polyacrylonitrile fibre Be road engineering it is the most frequently used two it is big strengthen one of anti-crack fibers, elastic modelling quantity and tensile strength are higher, fast light and corrosion resistance It is good, it is particularly suitable for high alkalinity diatom mud material.Interfacial Adsorption bonding force and mechanical engagement between fiber and diatom ooze base material Power etc. increased the crack resistance of material, and fiber dispersibles the energy of contraction, enhances the toughness of wall material, while alleviating temperature change The diatom ooze internal stress that change causes, so as to avoid the probability of cracking and fold in work progress.
The polyacrylonitrile fibre prepared by each group distribution ratio in embodiment 1~5 and method strengthens crack resistance type diatom ooze material Material, by national JC/T 2177-2013《Diatom ooze decorative wall material》Standard requires to be dried its condition in container, application property, initial stage Crack resistance (6h), surface drying time, alkali resistance (48h), adhesive strength, moisture resistance properties, diatom composition, humidity, purifying formaldehyde Performance, purifying formaldehyde effect persistence, mould proof performance, mould proof endurance quality, VOC total amount, benzene class contain Amount, free formaldehyde content, soluble heavy metal content etc. are tested, and the results are shown in Table 1, table 2 and table 3.
Table 1 is that polyacrylonitrile fibre strengthens crack resistance type diatom mud material all technical
From table 1 it follows that polyacrylonitrile fibre strengthens crack resistance type diatom mud material all technical reaching JC/T 2177-2013《Diatom ooze decorative wall material》Regulation.Jing tests are not added with certain formula diatom ooze of fiber in alkali resistance (48h) occur slight crack, the phenomenon come off with dissolution in testing, and after adding polyacrylonitrile fibre, surface is without foaming, crackle, stripping Fall, without substantially discoloration, so as to meet JC/T 2177-2013《Diatom ooze decorative wall material》Requirement to alkali resistance.Jing test additions The adhesive strength standard conditionss of certain formula diatom ooze of pre-gelatinized starch have brought up to 0.61MPa by 0.40MPa, after immersion by 0.23MPa has brought up to 0.48MPa, so as to meet JC/T 2177-2013《Diatom ooze decorative wall material》Adhesive strength is wanted Ask.
Table 2 is that polyacrylonitrile fibre strengthens crack resistance type diatom mud material various functions index
From Table 2, it can be seen that polyacrylonitrile fibre strengthens crack resistance type diatom mud material various functions index reaching JC/T 2177-2013《Diatom ooze decorative wall material》Regulation, the far super existing product of performance.
Table 3 is that polyacrylonitrile fibre strengthens crack resistance type diatom mud material harmful substance release index
Note:The detection limit value of content of volatile organic compound is 1g/kg;Benzene, toluene, ethylbenzene, the inspection of dimethylbenzene summation Go out limit value for 50mg/kg;The detection limit value of free formaldehyde is 5mg/kg;The detection limit value of soluble heavy metal is 10mg/kg.
From table 3 it is observed that polyacrylonitrile fibre strengthens crack resistance type diatom mud material, its VOC contains Amount, free formaldehyde, soluble heavy metal and benzene, toluene, ethylbenzene equal size, meet state compulsory standard JC/T 2177- 2013《Diatom ooze decorative wall material》The indices of regulation, are qualified diatom ooze decorative wall materials.
The polyacrylonitrile fibre that embodiment 1~5 is prepared strengthens crack resistance type diatom mud material and existing product difference After the completion of construction, body of wall and surface of wall are warming up to into 40 DEG C, 50 DEG C and 60 DEG C constant temperature 1h, as a result such as table 4.
Table 4 is that the polyacrylonitrile fibre that embodiment 1~5 is prepared strengthens crack resistance type diatom mud material at 40~60 DEG C Cracking test result
As can be seen from Table 4, apply the polyacrylonitrile fibre that example 1~5 prepares and strengthen crack resistance type diatom mud material and exist It is warming up in the range of 40~50 DEG C without significant change, slight fold occurs when temperature rises to 60 DEG C, and 50 DEG C of existing product goes out Existing fold, 60 DEG C there is crackle, peel off.Illustrate the application polyacrylonitrile fibre strengthen crack resistance type diatom mud material, to by Temperature change causes material surface fold and cracking, with good resistance, facilitates construction.Additionally, preparation side of the invention Method is simple to operate, the inexpensive environmental protection of raw material, it is easy to accomplish industrialization.Obtained polyacrylonitrile fibre strengthens crack resistance type diatom mud material Act on humidity, sound insulation and noise reduction, fire protection flame retarding, purify air, good for health etc. is adjusted.
Although the present invention is described in detail above to have used general explanation and specific embodiment, at this On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore, These modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.

Claims (10)

1. a kind of polyacrylonitrile fibre strengthens crack resistance type diatom mud material, it is characterised in that:The polyacrylonitrile fibre strengthens anti- Splitting type diatom mud material includes according to mass fraction:15~35 parts of kieselguhr, 20~40 parts of ground calcium carbonate, 8~20 parts of grey calcium Powder, 8~20 parts of quartz sand, 2~5 parts of nano titanium oxides, 1~4 part of anion powder, 0.5~2.5 part of cellulose ether, 0.1~ 0.5 part of pre-gelatinized starch and 0.1~2 part of polyacrylonitrile fibre.
2. polyacrylonitrile fibre according to claim 1 strengthens crack resistance type diatom mud material, it is characterised in that:Described poly- third Alkene nitrile fibre-reinforced anti-crack type diatom mud material includes according to mass fraction:20~30 parts of kieselguhr, 25~35 parts of heavy carbonic acid Calcium, 14~18 parts of sierozem powers, 14~16 parts of quartz sands, 3~4 parts of nano titanium oxides, 2~3 parts of anion powder, 1~2 part of fiber Plain ether, 0.2~0.4 part of pre-gelatinized starch and 0.15~0.8 part of polyacrylonitrile fibre.
3. polyacrylonitrile fibre according to claim 2 strengthens crack resistance type diatom mud material, it is characterised in that:Described poly- third Alkene nitrile fibre-reinforced anti-crack type diatom mud material includes according to mass fraction:28 parts of kieselguhr, 30 parts of ground calcium carbonate, 18 parts it is grey Calcium powder, 16 parts of quartz sands, 3 parts of nano titanium oxides, 3 parts of anion powder, 1.5 parts of cellulose ethers, 0.3 part of pre-gelatinized starch and 0.15 part of polyacrylonitrile fibre.
4. polyacrylonitrile fibre according to claim 1 strengthens crack resistance type diatom mud material, it is characterised in that:The diatom In soil, dioxide-containing silica is no less than 90%.
5. polyacrylonitrile fibre according to claim 1 strengthens crack resistance type diatom mud material, it is characterised in that:The heavy Calcium Carbonate particle diameter is 23~150 μm, the sierozem power particle diameter is 23~150 μm;The quartz sand particle size is 150~830 μm;Institute Anion powder particle diameter is stated for 3.3~13 μm;The pre-gelatinized starch particle diameter is less than 160 μm;The viscosity of cellulose ether is 20000 ~200000;The polyacrylonitrile fibre is a diameter of 5~80 μm, and length is 5~20mm.
6. polyacrylonitrile fibre according to claim 1 strengthens crack resistance type diatom mud material, it is characterised in that:The nanometer Titanium dioxide is rutile-type or the one kind in anatase titanium dioxide.
7. polyacrylonitrile fibre according to claim 1 strengthens crack resistance type diatom mud material, it is characterised in that:The nanometer Titanium dioxide is powder body or liquid.
8. polyacrylonitrile fibre according to claim 1 strengthens crack resistance type diatom mud material, it is characterised in that:The fiber Plain ether is one or more in carboxymethyl starch sodium, sodium carboxymethyl cellulose or hydroxypropyl methyl cellulose.
9. polyacrylonitrile fibre according to claim 1 strengthens crack resistance type diatom mud material, it is characterised in that:The pre- paste Change starch is the one kind in potato starch, corn starch or Maninot esculenta crantz. pre-gelatinized starch.
10. a kind of polyacrylonitrile fibre as described in any one of claim 1-9 strengthens the preparation side of crack resistance type diatom mud material Method, it is characterised in that:The preparation method is comprised the following steps:
Step one, prepare mixed-powder:By kieselguhr, ground calcium carbonate, sierozem power, quartz sand, anion powder, cellulose ether and Pre-gelatinized starch is full and uniform, and mixed-powder is obtained;
Step 2, prepare nano titanium oxide mixed solution:It is after by nano titanium oxide and water mixing, ultrasonic in 30~60KHz It is dispersed to uniform;
Step 3, prepare mixed slurry:Mixed-powder in step one is added to into nano-silica obtained in step 2 while stirring Change in titanium mixed solution, fully mix, mixed slurry is obtained;
Step 4, polyacrylonitrile fibre monofilament is scatter, in adding mixed slurry, stir 1~5min, that is, polyacrylonitrile is obtained Fibre-reinforced anti-crack type diatom mud material;
Wherein, in the step 2, water and the mass ratio of mixed-powder in step 3 are 1:1~2.
CN201610945915.9A 2016-11-02 2016-11-02 A kind of polyacrylonitrile fibre strengthens crack resistance type diatom mud material and preparation method thereof Pending CN106542774A (en)

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CN106046905A (en) * 2016-08-14 2016-10-26 谢新莉 Environment-friendly anti-crack material for wall decoration and preparation method thereof

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Application publication date: 20170329