CN108892404A - A kind of thermal insulation mortar aeroge-basalt composite fibre and preparation method thereof - Google Patents

A kind of thermal insulation mortar aeroge-basalt composite fibre and preparation method thereof Download PDF

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Publication number
CN108892404A
CN108892404A CN201810747934.XA CN201810747934A CN108892404A CN 108892404 A CN108892404 A CN 108892404A CN 201810747934 A CN201810747934 A CN 201810747934A CN 108892404 A CN108892404 A CN 108892404A
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basalt
halloysite nanotubes
thermal insulation
added
fibre
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胡万伟
孙连军
郭胡健
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Anhui Province Shen Zhou Building Materials Science And Technology Ltd
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Anhui Province Shen Zhou Building Materials Science And Technology 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
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02Treatment
    • C04B20/023Chemical treatment
    • 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
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38Fibrous materials; Whiskers
    • C04B14/46Rock wool ; Ceramic or silicate fibres
    • C04B14/4643Silicates other than zircon
    • 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
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10Coating or impregnating
    • C04B20/12Multiple coating or impregnating

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention discloses a kind of thermal insulation mortar aeroge-basalt composite fibres and preparation method thereof, when the composite fibre of preparation is applied to thermal insulation mortar, not only compression strength, flexural strength are higher, has the function of phase transformation temperature storage simultaneously, thermal insulation property, anti-freezing property are preferable, improve the single-function of fiber;Halloysite nanotubes are pre-processed, its active site is sufficiently activated, promote its attachment on basalt fibre;Basalt fibre is modified using polypropylene lotion, halloysite nanotubes, on the basalt fibre for the halloysite nanotubes of nano-scale being adhered to for meter ruler cun, not only increase the adsorption area and adsorption capacity of basalt fibre, staggered network structure is formed with basalt fibre simultaneously, the bending resistance compressive property of basalt fibre is enhanced, mechanical strength is greatly improved.

Description

A kind of thermal insulation mortar aeroge-basalt composite fibre and preparation method thereof
Technical field
The invention belongs to building material technical fields, and in particular to a kind of thermal insulation mortar compound fibre of aeroge-basalt Dimension and preparation method thereof.
Background technique
Basalt fibre is a kind of novel inorganic fibers, is a kind of Black Warrior of the glassy state formed by volcano eruption A kind of rock and ore high performance mineral fibres made of Defect after high-temperature fusion.It is small with thermal coefficient, elasticity modulus is high, Tensile strength is big, good dispersion, it is good and at low cost, from a wealth of sources with the compatibility of cement-based material the advantages that.Currently, the Black Warrior Rock fiber has been used for the performance for improving conventional cement mortar, concrete, thermal insulation mortar.
But basalt fibre, when application is with thermal insulation mortar, there is also thermal insulation properties, and not good enough, mechanical strength needs to be mentioned High problem.
Summary of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of good heat insulating, mechanical strength are high, light.
The invention is realized by the following technical scheme:
A kind of thermal insulation mortar aeroge-basalt composite fibre, which is characterized in that be made of raw material from the following weight:
Basalt fibre 20-30, halloysite nanotubes 10-15, atoleine 5-10, Tween-80 1-2, calcium chloride solution 30- 40, carbonate solution 30-40, sodium silicate solution 40-50, dilute hydrochloric acid solution 20-30, silane coupling agent ethanol solution 50-100, Polypropylene lotion 8-15.
Further, preparation method includes the following steps:
(1)It is to impregnate 2-3h in the dilute hydrochloric acid solution of 4-6% by the mass concentration that basalt fibre is placed in 10-20 times of its volume, Then filtration and washing is placed in vacuum tank to neutrality, is evacuated to 0.08-0.09MPa, be then heated to 120-170 DEG C, incite somebody to action Drying to constant weight for basalt fibre, and is milled to length≤20 μm;
(2)By step(1)Gained basalt fibre is modified using halloysite nanotubes;
(3)By step(2)Gained treated basalt fiber is added in the deionized water of 30-50 times of its volume, 300-400rpm Under be uniformly dispersed, be then heated to 60-70 DEG C, atoleine, Tween-80 be added, accelerates to 800-1000rpm, emulsion dispersion After 30-40min, the calcium chloride solution of 20-30% is added thereto, continues to emulsify 1-2h, it is molten that carbonate is then added dropwise while stirring Liquid, after being added dropwise, reduction of speed to 600-800rpm stirs 2-3h, is cooled to room temperature, and filters, and is subsequently placed at 40-50 DEG C and does It is dry;
(4)By step(3)Gains are added in the sodium silicate solution of 20-50%, are warming up to 30-40 DEG C, ultrasonic disperse 20- 30min, is then added the dilute hydrochloric acid solution of 3-5%, and 2-4h is stirred to react at 200-300rpm, after standing 3-5h, filtering, Gains are alternately rinsed with distilled water and ethyl alcohol, are repeated 4-6 times, drying in -40~-48 DEG C of freeze drying box is then placed in, Crushed after being dried to granularity is 10-50 μm.
Further, step(2)It is described to be using halloysite nanotubes treated basalt fiber concrete operation method:
By step(1)Gained basalt fibre is added in the silane coupling agent ethanol solution of 2-6%, under 80-100Hz at ultrasound 30-40min is managed, polypropylene lotion, halloysite nanotubes is then added, is warming up to 70-80 DEG C, continues to be ultrasonically treated 1-2h, so After filter, in 100-120 DEG C of air dry oven dry.
Further, step(3)The calcium chloride solution mass concentration is 30-40%.
Further, step(3)The carbonate solution mass concentration is 10-30%, and the carbonate is sodium carbonate, carbon One of sour ammonium, potassium carbonate.
Further, the halloysite nanotubes pass through following pretreatment:Halloysite nanotubes are successively passed through to 3-8%'s Dilute hydrochloric acid, the sodium hydroxide solution of 2-5%, dehydrated alcohol, acetone, distilled water immersion, are aided with the stir process of 200-300rpm, All benefits are washed with distilled water 3-5 times after impregnating every time, are dried, and are repeated aforesaid operations 2-3 times.
Further, the halloysite nanotubes partial size is 50-1000nm, internal diameter 10-20nm.
Further, the silane coupling agent is one of silane resin acceptor kh-550, KH-560.
Further, the polypropylene emulsion solid content is 30-40%.
Beneficial effects of the present invention:Thermal insulation mortar prepared by the present invention is applied to protect with aeroge-basalt composite fibre When warm mortar, not only compression strength, flexural strength are higher, while having the function of phase transformation temperature storage, thermal insulation property, anti-freezing property compared with It is good, improve the single-function of fiber;Halloysite nanotubes are pre-processed, its active site is sufficiently activated, promotes it Attachment on basalt fibre;Basalt fibre is modified using polypropylene lotion, halloysite nanotubes, makes a nanometer ruler Very little halloysite nanotubes are adhered on the basalt fibre for meter ruler cun, not only increase basalt fibre adsorption area and Adsorption capacity, while staggered network structure is formed with basalt fibre, enhance the bending resistance compressive property of basalt fibre, power Intensity is learned to be greatly improved;Atoleine is adsorbed using by halloysite nanotubes modified basalt fibre, The function of making it have phase transformation temperature storage enhances its thermal insulation property, improves its frost resistance;Calcium chloride and carbonate solution is recycled to exist Its surface forms calcium carbonate cladding, on the one hand effectively prevents leaking for phase-change material, guarantees its stability, on the other hand, shape At calcium carbonate shell also promote dispersibility of the modified basalt in subsequent aerosil, guarantee that its dispersion is equal It is even, realize the uniform cladding of aerosil;It is coated, is further improved multiple in outermost layer using aerosil The thermal insulation property of condensating fiber, while preparing for the subsequent application in thermal insulation mortar, improve its dispersion performance and interface cohesion Performance.
Specific embodiment
Illustrate the present invention with specific embodiment below, but is not limitation of the present invention.
Embodiment 1
A kind of thermal insulation mortar aeroge-basalt composite fibre, which is characterized in that be made of raw material from the following weight:
Basalt fibre 20, halloysite nanotubes 10, atoleine 5, Tween-80 1, calcium chloride solution 30, carbonate solution 30, sodium silicate solution 40, dilute hydrochloric acid solution 20, silane coupling agent ethanol solution 50, polypropylene lotion 8.
Further, preparation method includes the following steps:
(1)Basalt fibre is placed in the dilute hydrochloric acid solution that the mass concentration of 10 times of its volume is 4%, impregnates 2h, then filter It rinses to neutrality, is placed in vacuum tank, is evacuated to 0.08MPa, be then heated to 120 DEG C, basalt fibre is dried to Constant weight, and it is milled to length≤20 μm;
(2)By step(1)Gained basalt fibre is modified using halloysite nanotubes;
(3)By step(2)Gained treated basalt fiber is added in the deionized water of 30 times of its volume, is dispersed under 300rpm equal It is even, be then heated to 60 DEG C, atoleine, Tween-80 be added, accelerate to 800rpm, after emulsion dispersion 30min, thereto plus The calcium chloride solution for entering 20% continues to emulsify 1h, carbonate solution is then added dropwise while stirring, after being added dropwise, reduction of speed is extremely 600rpm stirs 2h, is cooled to room temperature, and filters, and is subsequently placed at 40 DEG C dry;
(4)By step(3)Gains are added in 20% sodium silicate solution, are warming up to 30 DEG C, ultrasonic disperse 20min, then plus Enter 3% dilute hydrochloric acid solution, and be stirred to react 2h at 200 rpm, after standing 3h, filtering is alternately rinsed with distilled water and ethyl alcohol Gains are repeated 4 times, and are then placed in drying in -40 DEG C of freeze drying box, and crushed after being dried to granularity is 10 μm.
Further, step(2)It is described to be using halloysite nanotubes treated basalt fiber concrete operation method:
By step(1)Gained basalt fibre is added in the silane coupling agent ethanol solution of 2-6%, is ultrasonically treated under 80Hz Then 30min is added polypropylene lotion, halloysite nanotubes, is warming up to 70 DEG C, continue to be ultrasonically treated 1h, then filter, It is dried in 100 DEG C of air dry oven.
Further, step(3)The calcium chloride solution mass concentration is 30%.
Further, step(3)The carbonate solution mass concentration is 10%, and the carbonate is sodium carbonate, carbonic acid One of ammonium, potassium carbonate.
Further, the halloysite nanotubes pass through following pretreatment:Halloysite nanotubes are successively passed through 3% it is dilute Hydrochloric acid, 2% sodium hydroxide solution, dehydrated alcohol, acetone, distilled water immersion, are aided with the stir process of 200rpm, impregnate every time All benefit is washed with distilled water 3 times afterwards, and drying repeats aforesaid operations 2 times.
Further, the halloysite nanotubes partial size is 50nm, internal diameter 10nm.
Further, the silane coupling agent is one of silane resin acceptor kh-550, KH-560.
Further, the polypropylene emulsion solid content is 30%.
Embodiment 2
A kind of thermal insulation mortar aeroge-basalt composite fibre, which is characterized in that be made of raw material from the following weight:
Basalt fibre 25, halloysite nanotubes 12, atoleine 7, Tween-80 2, calcium chloride solution 35, carbonate solution 35, sodium silicate solution 45, dilute hydrochloric acid solution 25, silane coupling agent ethanol solution 70, polypropylene lotion 10.
Further, preparation method includes the following steps:
(1)Basalt fibre is placed in the dilute hydrochloric acid solution that the mass concentration of 15 times of its volume is 5%, impregnates 3h, then filter It rinses to neutrality, is placed in vacuum tank, is evacuated to 0.085MPa, be then heated to 150 DEG C, basalt fibre is dried to Constant weight, and it is milled to length≤20 μm;
(2)By step(1)Gained basalt fibre is modified using halloysite nanotubes;
(3)By step(2)Gained treated basalt fiber is added in the deionized water of 40 times of its volume, is dispersed under 350rpm equal It is even, be then heated to 65 DEG C, atoleine, Tween-80 be added, accelerate to 900rpm, after emulsion dispersion 35min, thereto plus The calcium chloride solution for entering 25% continues to emulsify 2h, carbonate solution is then added dropwise while stirring, after being added dropwise, reduction of speed is extremely 700rpm stirs 3h, is cooled to room temperature, and filters, and is subsequently placed at 45 DEG C dry;
(4)By step(3)Gains are added in 30% sodium silicate solution, are warming up to 35 DEG C, ultrasonic disperse 25min, then plus Enter 4% dilute hydrochloric acid solution, and be stirred to react 3h at 250rpm, after standing 4h, filtering is alternately rinsed with distilled water and ethyl alcohol Gains are repeated 5 times, and are then placed in drying in -45 DEG C of freeze drying box, and crushed after being dried to granularity is 30 μm.
Further, step(2)It is described to be using halloysite nanotubes treated basalt fiber concrete operation method:
By step(1)Gained basalt fibre is added in 4% silane coupling agent ethanol solution, is ultrasonically treated under 90Hz Then 35min is added polypropylene lotion, halloysite nanotubes, is warming up to 75 DEG C, continue to be ultrasonically treated 2h, then filter, It is dried in 110 DEG C of air dry oven.
Further, step(3)The calcium chloride solution mass concentration is 35%.
Further, step(3)The carbonate solution mass concentration is 20%, and the carbonate is sodium carbonate, carbonic acid One of ammonium, potassium carbonate.
Further, the halloysite nanotubes pass through following pretreatment:Halloysite nanotubes are successively passed through 5% it is dilute Hydrochloric acid, 4% sodium hydroxide solution, dehydrated alcohol, acetone, distilled water immersion, are aided with the stir process of 250rpm, impregnate every time All benefit is washed with distilled water 4 times afterwards, and drying repeats aforesaid operations 3 times.
Further, the halloysite nanotubes partial size is 100nm, internal diameter 15nm.
Further, the silane coupling agent is one of silane resin acceptor kh-550, KH-560.
Further, the polypropylene emulsion solid content is 35%.
Embodiment 3
A kind of thermal insulation mortar aeroge-basalt composite fibre, which is characterized in that be made of raw material from the following weight:
Basalt fibre 30, halloysite nanotubes 15, atoleine 10, Tween-80 2, calcium chloride solution 40, carbonate solution 40, sodium silicate solution 50, dilute hydrochloric acid solution 30, silane coupling agent ethanol solution 100, polypropylene lotion 15.
Further, preparation method includes the following steps:
(1)Basalt fibre is placed in the dilute hydrochloric acid solution that the mass concentration of 20 times of its volume is 6%, impregnates 3h, then filter It rinses to neutrality, is placed in vacuum tank, is evacuated to 0.09MPa, be then heated to 170 DEG C, basalt fibre is dried to Constant weight, and it is milled to length≤20 μm;
(2)By step(1)Gained basalt fibre is modified using halloysite nanotubes;
(3)By step(2)Gained treated basalt fiber is added in the deionized water of 50 times of its volume, is dispersed under 400rpm equal It is even, be then heated to 70 DEG C, atoleine, Tween-80 be added, accelerate to 1000rpm, after emulsion dispersion 40min, thereto plus The calcium chloride solution for entering 30% continues to emulsify 2h, carbonate solution is then added dropwise while stirring, after being added dropwise, reduction of speed is extremely 800rpm stirs 3h, is cooled to room temperature, and filters, and is subsequently placed at 50 DEG C dry;
(4)By step(3)Gains are added in 50% sodium silicate solution, are warming up to 40 DEG C, ultrasonic disperse 30min, then plus Enter 5% dilute hydrochloric acid solution, and be stirred to react 4h at 300 rpm, after standing 5h, filtering is alternately rinsed with distilled water and ethyl alcohol Gains are repeated 6 times, and are then placed in drying in -48 DEG C of freeze drying box, and crushed after being dried to granularity is 50 μm.
Further, step(2)It is described to be using halloysite nanotubes treated basalt fiber concrete operation method:
By step(1)Gained basalt fibre is added in 6% silane coupling agent ethanol solution, is ultrasonically treated under 100Hz Then 40min is added polypropylene lotion, halloysite nanotubes, is warming up to 80 DEG C, continue to be ultrasonically treated 2h, then filter, It is dried in 120 DEG C of air dry oven.
Further, step(3)The calcium chloride solution mass concentration is 40%.
Further, step(3)The carbonate solution mass concentration is 30%, and the carbonate is sodium carbonate, carbonic acid One of ammonium, potassium carbonate.
Further, the halloysite nanotubes pass through following pretreatment:Halloysite nanotubes are successively passed through 8% it is dilute Hydrochloric acid, 5% sodium hydroxide solution, dehydrated alcohol, acetone, distilled water immersion, are aided with the stir process of 300rpm, impregnate every time All benefit is washed with distilled water 5 times afterwards, and drying repeats aforesaid operations 3 times.
Further, the halloysite nanotubes partial size is 1000nm, internal diameter 20nm.
Further, the silane coupling agent is one of silane resin acceptor kh-550, KH-560.
Further, the polypropylene emulsion solid content is 40%.
Comparative example 1
The addition of halloysite nanotubes is omitted compared to embodiment 1 in this comparative example, all phases of method and step in addition to this Together.
Comparative example 2
The addition of atoleine is omitted compared to embodiment 1 in this comparative example, and method and step in addition to this is all identical.
Comparative example 3
The addition of calcium chloride, carbonate solution is omitted compared to embodiment 1 in this comparative example, method step in addition to this It is rapid all identical.
Comparative example 4
The addition of sodium silicate solution is omitted compared to embodiment 1 in this comparative example, all phases of method and step in addition to this Together.
Experiment:
Room temperature tensile is carried out to composite fibre obtained by each group respectively using WDW3020 micro-control electronic universal tester, compresses and cuts Mechanics Performance Testing is cut, test result is as shown in table 1:
Table 1
As can be seen from Table 1, aeroge prepared by the present invention-basalt composite fibre tensile strength with higher, compressive strength and Shear strength, mechanical property are preferable.
Guarantor is made with identical proportion with cement, glass bead, rubber powder, cellulose ether respectively in composite fibre obtained by each group Warm mortar, and chemical conversion type is supported, then carry out following test:
Resistance to compression, flexural strength test:By GB/T 17671-1999《Test method for strength of hydraulic cement mortar(ISO method)》It is surveyed Examination, the sample dimensions mm × 160 of 40 mm × 40 mm;
Frost resistance test:Referring to GB/T 20473-2006《Building heat-insulating mortar》It carries out, being led with freezing-thawing strength damage indicates it Anti-freezing property.
Thermal insulation property test:Thermal insulation property is better, and thermal coefficient is lower.Thermal coefficient reference《Technology of Steady State Thermal Resistance of Thermal Insulating Material And the measurement Guarded hot plate in relation to characteristic》GB/T10294-2008 measurement;
Test data is as shown in table 1:
Table 2
As can be seen from Table 2, thermal insulation mortar prepared by the present invention is applied to thermal insulation mortar with aeroge-basalt composite fibre When, not only compression strength, flexural strength are higher, while having thermal insulation property, anti-freezing property preferable, improve the function list of fiber One property.

Claims (9)

1. a kind of thermal insulation mortar aeroge-basalt composite fibre, which is characterized in that be made of raw material from the following weight:
Basalt fibre 20-30, halloysite nanotubes 10-15, atoleine 5-10, Tween-80 1-2, calcium chloride solution 30- 40, carbonate solution 30-40, sodium silicate solution 40-50, dilute hydrochloric acid solution 20-30, silane coupling agent ethanol solution 50-100, Polypropylene lotion 8-15.
2. a kind of thermal insulation mortar according to claim 1 aeroge-basalt composite fibre, which is characterized in that it is made Preparation Method includes the following steps:
(1)It is to impregnate 2-3h in the dilute hydrochloric acid solution of 4-6% by the mass concentration that basalt fibre is placed in 10-20 times of its volume, Then filtration and washing is placed in vacuum tank to neutrality, is evacuated to 0.08-0.09MPa, be then heated to 120-170 DEG C, incite somebody to action Drying to constant weight for basalt fibre, and is milled to length≤20 μm;
(2)By step(1)Gained basalt fibre is modified using halloysite nanotubes;
(3)By step(2)Gained treated basalt fiber is added in the deionized water of 30-50 times of its volume, 300-400rpm Under be uniformly dispersed, be then heated to 60-70 DEG C, atoleine, Tween-80 be added, accelerates to 800-1000rpm, emulsion dispersion After 30-40min, the calcium chloride solution of 20-30% is added thereto, continues to emulsify 1-2h, it is molten that carbonate is then added dropwise while stirring Liquid, after being added dropwise, reduction of speed to 600-800rpm stirs 2-3h, is cooled to room temperature, and filters, and is subsequently placed at 40-50 DEG C and does It is dry;
(4)By step(3)Gains are added in the sodium silicate solution of 20-50%, are warming up to 30-40 DEG C, ultrasonic disperse 20- 30min, is then added the dilute hydrochloric acid solution of 3-5%, and 2-4h is stirred to react at 200-300rpm, after standing 3-5h, filtering, Gains are alternately rinsed with distilled water and ethyl alcohol, are repeated 4-6 times, drying in -40~-48 DEG C of freeze drying box is then placed in, Crushed after being dried to granularity is 10-50 μm.
3. a kind of thermal insulation mortar according to claim 2 aeroge-basalt composite fibre preparation method, feature exist In step(2)It is described to be using halloysite nanotubes treated basalt fiber concrete operation method:
By step(1)Gained basalt fibre is added in the silane coupling agent ethanol solution of 2-6%, under 80-100Hz at ultrasound 30-40min is managed, polypropylene lotion, halloysite nanotubes is then added, is warming up to 70-80 DEG C, continues to be ultrasonically treated 1-2h, so After filter, in 100-120 DEG C of air dry oven dry.
4. a kind of thermal insulation mortar according to claim 2 aeroge-basalt composite fibre preparation method, feature exist In step(3)The calcium chloride solution mass concentration is 30-40%.
5. a kind of thermal insulation mortar according to claim 2 aeroge-basalt composite fibre preparation method, feature exist In step(3)The carbonate solution mass concentration is 10-30%, and the carbonate is sodium carbonate, in ammonium carbonate, potassium carbonate It is a kind of.
6. according to claim 3 utilize halloysite nanotubes treated basalt fiber method, which is characterized in that described angstrom Lip river stone nanotube passes through following pretreatment:Dilute hydrochloric acid, the sodium hydroxide of 2-5% that halloysite nanotubes are successively passed through to 3-8% are molten Liquid, dehydrated alcohol, acetone, distilled water immersion are aided with the stir process of 200-300rpm, and distillation washing is all utilized after impregnating every time It washs 3-5 times, dries, repeat aforesaid operations 2-3 times.
7. according to claim 3 utilize halloysite nanotubes treated basalt fiber method, which is characterized in that described angstrom Lip river stone nanotube partial size is 50-1000nm, internal diameter 10-20nm.
8. according to claim 3 utilize halloysite nanotubes treated basalt fiber method, which is characterized in that the silicon Alkane coupling agent is one of silane resin acceptor kh-550, KH-560.
9. according to claim 3 utilize halloysite nanotubes treated basalt fiber method, which is characterized in that described poly- Acrylic acid emulsion solid content is 30-40%.
CN201810747934.XA 2018-07-10 2018-07-10 A kind of thermal insulation mortar aeroge-basalt composite fibre and preparation method thereof Pending CN108892404A (en)

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