CN107502074A - Curing compound containing modified pineapple flaxen fiber and preparation method thereof and application - Google Patents
Curing compound containing modified pineapple flaxen fiber and preparation method thereof and application Download PDFInfo
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- CN107502074A CN107502074A CN201710641295.4A CN201710641295A CN107502074A CN 107502074 A CN107502074 A CN 107502074A CN 201710641295 A CN201710641295 A CN 201710641295A CN 107502074 A CN107502074 A CN 107502074A
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- flaxen fiber
- pineapple flaxen
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- pineapple
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- 239000000835 fiber Substances 0.000 title claims abstract description 138
- 235000007119 Ananas comosus Nutrition 0.000 title claims abstract description 137
- 150000001875 compounds Chemical class 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 244000099147 Ananas comosus Species 0.000 title claims description 30
- 241000234671 Ananas Species 0.000 claims abstract description 107
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 28
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000292 calcium oxide Substances 0.000 claims abstract description 22
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000839 emulsion Substances 0.000 claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 20
- 239000010703 silicon Substances 0.000 claims abstract description 20
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims abstract description 17
- 239000011259 mixed solution Substances 0.000 claims abstract description 16
- PRPAGESBURMWTI-UHFFFAOYSA-N [C].[F] Chemical compound [C].[F] PRPAGESBURMWTI-UHFFFAOYSA-N 0.000 claims abstract description 15
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 claims abstract description 15
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000013530 defoamer Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 230000004048 modification Effects 0.000 claims description 27
- 238000012986 modification Methods 0.000 claims description 27
- 238000010306 acid treatment Methods 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 15
- 239000000243 solution Substances 0.000 claims description 15
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 11
- 230000018044 dehydration Effects 0.000 claims description 7
- 238000006297 dehydration reaction Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 4
- 241000233805 Phoenix Species 0.000 claims description 2
- 241000220324 Pyrus Species 0.000 claims description 2
- 235000021017 pears Nutrition 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 239000002518 antifoaming agent Substances 0.000 claims 2
- VAJVDSVGBWFCLW-UHFFFAOYSA-N 3-Phenyl-1-propanol Chemical compound OCCCC1=CC=CC=C1 VAJVDSVGBWFCLW-UHFFFAOYSA-N 0.000 claims 1
- DYUQAZSOFZSPHD-UHFFFAOYSA-N Phenylpropyl alcohol Natural products CCC(O)C1=CC=CC=C1 DYUQAZSOFZSPHD-UHFFFAOYSA-N 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 33
- 238000005336 cracking Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 9
- 239000004567 concrete Substances 0.000 description 34
- 238000012360 testing method Methods 0.000 description 32
- 206010016807 Fluid retention Diseases 0.000 description 14
- 238000012423 maintenance Methods 0.000 description 11
- 239000007921 spray Substances 0.000 description 10
- 238000005507 spraying Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 229920002125 Sokalan® Polymers 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 239000004584 polyacrylic acid Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007761 roller coating Methods 0.000 description 2
- 239000003125 aqueous solvent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 238000004347 surface barrier Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4994—Organo-phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/64—Compounds having one or more carbon-to-metal of carbon-to-silicon linkages
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses a kind of curing compound containing modified pineapple flaxen fiber and preparation method thereof and application, the sealing compound to be made up according to mass percent meter of following components：It is modified the water of pineapple flaxen fiber 25~32%, styrene-acrylic emulsion 48~55%, dibutyl dicarboxylic acid esters 2.3~2.7%, fluorine-carbon modified polyacrylate flow agent 0.45~0.78%, organic silicon defoamer 0.12~0.18%, tributyl phosphate 0.18~0.22% and surplus；Modified pineapple flaxen fiber is made up of pineapple flaxen fiber, Ludox, concentrated hydrochloric acid, nano calcium oxide and vinyltrimethoxy silane.Modified pineapple flaxen fiber and the water of formula ratio half are taken in proportion, and mixing stirs evenly, and obtains the first mixed solution；Remaining component is weighed in proportion, and mixing stirs evenly, and obtains the second mixed solution；Merge the first mixed solution and the second mixed solution, fully stir evenly, produce a kind of curing compound with high water retention and cracking resistance Reduce shrinkage effect.
Description
The application is application number 2016100521258, the applying date 2016 year 01 month 25, denomination of invention " containing modified pineapple
The divisional application of curing compound of flaxen fiber and preparation method thereof and application ".
Technical field
The present invention relates to the conservation technology field of concrete, specifically a kind of concrete curing containing modified pineapple flaxen fiber
Agent and preparation method thereof and application.
Background technology
Concrete curing is an important step of concrete construction, must during initial set after concrete cast
It need be conserved, that is, keep necessary humidity and temperature, make it there is enough moisture to ensure that hydration reaction is carried out；It is suitable to support
Protect the performances such as the durability that can increase substantially concrete, intensity, wearability, volume stability.Traditional maintenance process has
Bag maintenance, plastic sheeting maintenance and watering maintenance are littered, these methods are time-consuming, take a lot of work and serious waste water resource.
Method using film forming sealing compound curing concrete is long-standing.At present, common sealing compound can divide on the market
For two kinds of organic sealing compound and inorganic sealing compound.Inorganic sealing compound is generally silicates sealing compound, can be in coagulation after spraying
Native surface forms one layer of entringite colloidal film, can play a part of completely cutting off air reduction vapor evaporation.But its shortcoming is
Film-formation result is bad, and water retention is low.Organic sealing compound has two kinds of resin type and emulsion-type, the wherein general Water-saving effect ratio of resin type
Preferably, but it is typically can not to meet very much modern construction green ring greatly as dispersed phase, toxicity and volatility from organic solvent
The requirement of guarantor.Emulsion type curing agent is one of focus of latest developments.Wherein paraffin wax type emulsion sealing compound is commonplace to be somebody's turn to do
The sealing compound water retention of type is high, easily removing, and shortcoming is that cost is higher, therefore is subject to certain restrictions.Another emulsion
Type sealing compound is prepared with macromolecular organic compounds such as styrene-acrylic emulsions, can form one layer continuously in concrete surface
Barrier film, it has many merits such as cheap, easy to use, green, the easy removing of cost, but its water retention compares always
Low, water retention is typically below 60% within 72 hours.
The content of the invention
It is an object of the invention to provide a kind of there is high water retention, containing for cracking resistance Reduce shrinkage effect to be modified pineapple flaxen fiber
Curing compound and preparation method thereof and application.
To achieve the above object, the present invention provides following technical scheme：
Curing compound containing modified pineapple flaxen fiber, according to mass percent meter, is made up of following components：Modified phoenix
Pears flaxen fiber 25~32%, styrene-acrylic emulsion 48~55%, dibutyl dicarboxylic acid esters 2.3~2.7%, fluorine-carbon modified polyacrylate
Levelling agent 0.45~0.78%, organic silicon defoamer 0.12~0.18%, the water of tributyl phosphate 0.18~0.22% and surplus；
Described modification pineapple flaxen fiber in parts by weight, is made up of following raw material：100 parts of pineapple flaxen fiber, Ludox 14~
18 parts, mass concentration be 12~18% 15~20 parts of concentrated hydrochloric acid, particle diameter be 20~45nm 30~48 parts of nano calcium oxide and
4~7 parts of vinyltrimethoxy silane, its preparation method comprises the following steps：
1) pretreatment of pineapple flaxen fiber：Pineapple flaxen fiber is cut to 2~3mm of length chopped pineapple flaxen fiber, it is standby；
2) decentralized processing：Take 100 parts of chopped pineapple flaxen fibers of step 1), under high-speed stirred, add 6~10 parts thereto
Ludox, and appropriate deionized water, its solid-to-liquid ratio ＜ 10% is controlled, chopped pina fiber solution is made；
3) acid treatment：It is 12~18% that 15~20 parts of mass concentrations are added into the chopped pina fiber solution of step 2)
Concentrated hydrochloric acid, be slowly stirred, carry out 22~30min of acid treatment, then vacuum suction filter be dehydrated, rinsing, obtain short after acid treatment
Cut pineapple flaxen fiber；
4) modification：At normal temperatures, added into the chopped pineapple flaxen fiber of step 3) 30~48 parts of particle diameters be 20~
45nm nano calcium oxide, 4~7 parts of vinyltrimethoxy silanes, remaining Ludox and appropriate deionized water, control
Its solid-to-liquid ratio ＜ 10%, is slowly stirred, and after being modified 1.5~2.5h of processing, stands 24h, dehydration；
5) drying process：After being dried under the conditions of temperature≤85 DEG C, grinding, 80~100 mesh sieves are crossed, obtain described modification
Pineapple flaxen fiber.
As the further scheme of the present invention：According to mass percent meter, it is made up of following components：Modified pineapple flaxen fiber
28~31%, styrene-acrylic emulsion 50~54%, dibutyl dicarboxylic acid esters 2.4~2.6%, fluorine-carbon modified polyacrylate flow agent
0.55~0.62%, the water of organic silicon defoamer 0.14~0.16%, tributyl phosphate 0.19~0.20% and surplus；Described
Modified pineapple flaxen fiber in parts by weight, is made up of following raw material：100 parts of pineapple flaxen fiber, 15~16 parts of Ludox, matter
Measure concentration be 13~15% 16~18 parts of concentrated hydrochloric acid, particle diameter be 20~45nm 35~42 parts of nano calcium oxide and vinyl three
5~6 parts of methoxy silane.
As the further scheme of the present invention：According to mass percent meter, it is made up of following components：Modified pineapple flaxen fiber
30%th, styrene-acrylic emulsion 52%, dibutyl dicarboxylic acid esters 2.5%, fluorine-carbon modified polyacrylate flow agent 0.58%, organosilicon disappear
The water of infusion 0.15%, tributyl phosphate 0.19% and surplus；Described modification pineapple flaxen fiber in parts by weight, by with
Lower raw material composition：16 parts of concentrated hydrochloric acid that 100 parts of pineapple flaxen fiber, 15 parts of Ludox, mass concentration are 15%, particle diameter be 20~
6 parts of 38 parts of 45nm nano calcium oxide and vinyltrimethoxy silane.
The preparation method of the described curing compound containing modified pineapple flaxen fiber, comprises the following steps：
(1) according to above-mentioned mass percent, the water of the half of modified pineapple flaxen fiber and formula ratio is weighed, is mixed, stirring
Uniformly, the first mixed solution is obtained；
(2) according to above-mentioned mass percent, styrene-acrylic emulsion, dibutyl dicarboxylic acid esters, fluorine-carbon modified polyacrylate are weighed
Levelling agent, organic silicon defoamer, tributyl phosphate and remaining water, mixing, stir, obtain the second mixed solution；
(3) the first mixed solution of step (1) is merged with the second mixed solution of step (2), stirs, obtain
To the curing compound containing modified pineapple flaxen fiber.
Application of the described curing compound containing modified pineapple flaxen fiber in concrete curing.
The application method of sealing compound of the present invention：Prepared by concentration, it is not necessary to dilute；After concrete initial set
Use, it is 0.15~0.2kg/m that can use mode, the usage amounts such as spraying, brushing, roller coating2。
Compared with prior art, the beneficial effects of the invention are as follows：
The modification pineapple flaxen fiber of the present invention, first carry out acid treatment with inorganic acid, then with nano calcium oxide and silane coupled
Agent is modified processing to it simultaneously, and nano calcium oxide and silane coupler modified effect are mainly shown as：Nano calcium oxide
Particle expands micropore, then silane coupler is in pineapple flaxen fiber table by inserting the inside of pina fiber pore structure
Face, weak electric field can be formed with pineapple flaxen fiber, be easier the organic matter with functional group adsorbed, and then improve pina
Hydrophobicity of the fiber in aqueous solvent, makes it have slower rate of water absorption.
By the present invention in that with the modification pineapple flaxen fiber with slower rate of water absorption, its imbibition ability is over time
Extend and absorb water less as far as possible in the trend being slowly increased, early stage, reduce the influence to workability of concrete, and the later stage has necessarily
Water absorbing capacity, guarantee there is enough water to conserve concrete.
Compared with existing styrene-acrylic emulsion, curing compound of the present invention has advantages below：
1) high water retention and cracking resistance Reduce shrinkage effect：Sealing compound of the present invention has inorganic sealing compound film layer concurrently simultaneously
Fine and close hard, organic sealing compound good water-retaining property dual premium properties, inside concrete is entered by infiltration and diffusion
Promote hydration reaction, dense skin structure, while can be combined with hydrated product and the crosslinking of top layer silicon oxygen bond, form rigid hydrophobic film
Layer, blocking concrete top layer hole prevent moisture evaporation, play a part of infiltration maintenance, water conservation autotrophy.Will be of the present invention
Sealing compound is coated in concrete surface, and rate of film build is fast, compact structure, and water retention has obtained significantly being lifted, and water retention can reach
88.7~98.4%, concrete crushing strength, cracking resistance can be effectively improved and reduce volume contraction, there is well weather-proof
Property.
2) it is green：Sealing compound of the present invention has no irritating odor, without it is poisonous and to concrete be harmful into
Point, it is good with concrete affinity, no matter all without discharging pernicious gas in work progress or after the completion of constructing；Prepare work
Skill is simple, cheap, and per kilogram sealing compound can apply 5~6.7m2。
3) it is applied widely：Sealing compound of the present invention is applied to the horizontal structures such as highway, airfield runway, bridge pavement
Architectural engineering, the large area concrete in the area such as arid, anhydrous, hot that is particularly suitable for use in, or be difficult to be supported with conventional method
The concrete of shield.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, the curing compound containing modified pineapple flaxen fiber, according to mass percent meter, by following
Component is made：Modified pineapple flaxen fiber 25%, styrene-acrylic emulsion 55%, dibutyl dicarboxylic acid esters 2.7%, fluorine-carbon modified polyacrylic acid
Ester levelling agent 0.78%, organic silicon defoamer 0.18%, the water of tributyl phosphate 0.22% and surplus；Described modification pina
Fiber in parts by weight, is made up of following raw material：100 parts of pineapple flaxen fiber, 14 parts of Ludox, mass concentration are 12%
20 parts of concentrated hydrochloric acid, 4 parts of 30 parts of the nano calcium oxide and vinyltrimethoxy silane that particle diameter is 20~45nm, its preparation method bag
Include following steps：
1) pretreatment of pineapple flaxen fiber：Pineapple flaxen fiber is cut to 2~3mm of length chopped pineapple flaxen fiber, it is standby；
2) decentralized processing：Take 100 parts of chopped pineapple flaxen fibers of step 1), under high-speed stirred, it is molten to add 6 parts of silicon thereto
Glue, and appropriate deionized water, its solid-to-liquid ratio ＜ 10% is controlled, chopped pina fiber solution is made；
3) acid treatment：The dense salt that 20 parts of mass concentrations are 12% is added into the chopped pina fiber solution of step 2)
Acid, it is slowly stirred, carries out acid treatment 22min, then vacuum suction filter is dehydrated, rinsing, obtains the fibre of the chopped pina after acid treatment
Dimension；
4) modification：At normal temperatures, it is 20~45nm 30 parts of particle diameters to be added into the chopped pineapple flaxen fiber of step 3)
Nano calcium oxide, 4 parts of vinyltrimethoxy silanes, remaining Ludox and appropriate deionized water, control its solid-liquid
Than ＜ 10%, it is slowly stirred, after being modified processing 1.5h, stands 24h, dehydration；
5) drying process：After being dried under the conditions of temperature≤85 DEG C, grinding, 80~100 mesh sieves are crossed, obtain described modification
Pineapple flaxen fiber.
The preparation method of the described curing compound containing modified pineapple flaxen fiber, comprises the following steps：
(1) according to above-mentioned mass percent, the water of the half of modified pineapple flaxen fiber and formula ratio is weighed, is mixed, stirring
Uniformly, the first mixed solution is obtained；
(2) according to above-mentioned mass percent, styrene-acrylic emulsion, dibutyl dicarboxylic acid esters, fluorine-carbon modified polyacrylate are weighed
Levelling agent, organic silicon defoamer, tributyl phosphate and remaining water, mixing, stir, obtain the second mixed solution；
(3) the first mixed solution of step (1) is merged with the second mixed solution of step (2), stirs, obtain
To the curing compound containing modified pineapple flaxen fiber.
Embodiment 2
In the embodiment of the present invention, the curing compound containing modified pineapple flaxen fiber, according to mass percent meter, by following
Component is made：Modified pineapple flaxen fiber 32%, styrene-acrylic emulsion 48%, dibutyl dicarboxylic acid esters 2.3%, fluorine-carbon modified polyacrylic acid
Ester levelling agent 0.45%, organic silicon defoamer 0.12%, the water of tributyl phosphate 0.18% and surplus；Described modification pina
Fiber in parts by weight, is made up of following raw material：100 parts of pineapple flaxen fiber, 18 parts of Ludox, mass concentration are 18%
15 parts of concentrated hydrochloric acid, 7 parts of 48 parts of the nano calcium oxide and vinyltrimethoxy silane that particle diameter is 20~45nm, its preparation method bag
Include following steps：
1) pretreatment of pineapple flaxen fiber：Pineapple flaxen fiber is cut to 2~3mm of length chopped pineapple flaxen fiber, it is standby；
2) decentralized processing：Take 100 parts of chopped pineapple flaxen fibers of step 1), under high-speed stirred, add 10 parts of silicon thereto
Colloidal sol, and appropriate deionized water, its solid-to-liquid ratio ＜ 10% is controlled, chopped pina fiber solution is made；
3) acid treatment：The dense salt that 15 parts of mass concentrations are 18% is added into the chopped pina fiber solution of step 2)
Acid, it is slowly stirred, carries out acid treatment 30min, then vacuum suction filter is dehydrated, rinsing, obtains the fibre of the chopped pina after acid treatment
Dimension；
4) modification：At normal temperatures, it is 20~45nm 48 parts of particle diameters to be added into the chopped pineapple flaxen fiber of step 3)
Nano calcium oxide, 7 parts of vinyltrimethoxy silanes, remaining Ludox and appropriate deionized water, control its solid-liquid
Than ＜ 10%, it is slowly stirred, after being modified processing 2.5h, stands 24h, dehydration；
5) drying process：After being dried under the conditions of temperature≤85 DEG C, grinding, 80~100 mesh sieves are crossed, obtain described modification
Pineapple flaxen fiber.
The preparation method of the described curing compound containing modified pineapple flaxen fiber is same as Example 1.
Embodiment 3
In the embodiment of the present invention, the curing compound containing modified pineapple flaxen fiber, according to mass percent meter, by following
Component is made：Modified pineapple flaxen fiber 28%, styrene-acrylic emulsion 54%, dibutyl dicarboxylic acid esters 2.6%, fluorine-carbon modified polyacrylic acid
Ester levelling agent 0.62%, organic silicon defoamer 0.16%, the water of tributyl phosphate 0.20% and surplus；Described modification pina
Fiber in parts by weight, is made up of following raw material：100 parts of pineapple flaxen fiber, 15 parts of Ludox, mass concentration are 13%
18 parts of concentrated hydrochloric acid, 5 parts of 35 parts of the nano calcium oxide and vinyltrimethoxy silane that particle diameter is 20~45nm, its preparation method bag
Include following steps：
1) pretreatment of pineapple flaxen fiber：Pineapple flaxen fiber is cut to 2~3mm of length chopped pineapple flaxen fiber, it is standby；
2) decentralized processing：Take 100 parts of chopped pineapple flaxen fibers of step 1), under high-speed stirred, it is molten to add 6 parts of silicon thereto
Glue, and appropriate deionized water, its solid-to-liquid ratio ＜ 10% is controlled, chopped pina fiber solution is made；
3) acid treatment：The dense salt that 18 parts of mass concentrations are 13% is added into the chopped pina fiber solution of step 2)
Acid, it is slowly stirred, carries out acid treatment 22min, then vacuum suction filter is dehydrated, rinsing, obtains the fibre of the chopped pina after acid treatment
Dimension；
4) modification：At normal temperatures, it is 20~45nm 35 parts of particle diameters to be added into the chopped pineapple flaxen fiber of step 3)
Nano calcium oxide, 5 parts of vinyltrimethoxy silanes, remaining Ludox and appropriate deionized water, control its solid-liquid
Than ＜ 10%, it is slowly stirred, after being modified processing 1.5h, stands 24h, dehydration；
5) drying process：After being dried under the conditions of temperature≤85 DEG C, grinding, 80~100 mesh sieves are crossed, obtain described modification
Pineapple flaxen fiber.
The preparation method of the described curing compound containing modified pineapple flaxen fiber is same as Example 1.
Embodiment 4
In the embodiment of the present invention, the curing compound containing modified pineapple flaxen fiber, according to mass percent meter, by following
Component is made：Modified pineapple flaxen fiber 31%, styrene-acrylic emulsion 50%, dibutyl dicarboxylic acid esters 2.4%, fluorine-carbon modified polyacrylic acid
Ester levelling agent 0.55%, organic silicon defoamer 0.14%, the water of tributyl phosphate 0.19% and surplus；Described modification pina
Fiber in parts by weight, is made up of following raw material：100 parts of pineapple flaxen fiber, 16 parts of Ludox, mass concentration are 15%
16 parts of concentrated hydrochloric acid, 6 parts of 42 parts of the nano calcium oxide and vinyltrimethoxy silane that particle diameter is 20~45nm, its preparation method bag
Include following steps：
1) pretreatment of pineapple flaxen fiber：Pineapple flaxen fiber is cut to 2~3mm of length chopped pineapple flaxen fiber, it is standby；
2) decentralized processing：Take 100 parts of chopped pineapple flaxen fibers of step 1), under high-speed stirred, add 10 parts of silicon thereto
Colloidal sol, and appropriate deionized water, its solid-to-liquid ratio ＜ 10% is controlled, chopped pina fiber solution is made；
3) acid treatment：The dense salt that 16 parts of mass concentrations are 15% is added into the chopped pina fiber solution of step 2)
Acid, it is slowly stirred, carries out acid treatment 30min, then vacuum suction filter is dehydrated, rinsing, obtains the fibre of the chopped pina after acid treatment
Dimension；
4) modification：At normal temperatures, it is 20~45nm 42 parts of particle diameters to be added into the chopped pineapple flaxen fiber of step 3)
Nano calcium oxide, 6 parts of vinyltrimethoxy silanes, remaining Ludox and appropriate deionized water, control its solid-liquid
Than ＜ 10%, it is slowly stirred, after being modified processing 2.5h, stands 24h, dehydration；
5) drying process：After being dried under the conditions of temperature≤85 DEG C, grinding, 80~100 mesh sieves are crossed, obtain described modification
Pineapple flaxen fiber.
The preparation method of the described curing compound containing modified pineapple flaxen fiber is same as Example 1.
Embodiment 5
In the embodiment of the present invention, the curing compound containing modified pineapple flaxen fiber, according to mass percent meter, by following
Component is made：Modified pineapple flaxen fiber 30%, styrene-acrylic emulsion 52%, dibutyl dicarboxylic acid esters 2.5%, fluorine-carbon modified polyacrylic acid
Ester levelling agent 0.58%, organic silicon defoamer 0.15%, the water of tributyl phosphate 0.19% and surplus；Described modification pina
Fiber in parts by weight, is made up of following raw material：100 parts of pineapple flaxen fiber, 15 parts of Ludox, mass concentration are 15%
16 parts of concentrated hydrochloric acid, 6 parts of 38 parts of the nano calcium oxide and vinyltrimethoxy silane that particle diameter is 20~45nm, its preparation method bag
Include following steps：
1) pretreatment of pineapple flaxen fiber：Pineapple flaxen fiber is cut to 2~3mm of length chopped pineapple flaxen fiber, it is standby；
2) decentralized processing：Take 100 parts of chopped pineapple flaxen fibers of step 1), under high-speed stirred, it is molten to add 8 parts of silicon thereto
Glue, and appropriate deionized water, its solid-to-liquid ratio ＜ 10% is controlled, chopped pina fiber solution is made；
3) acid treatment：The dense salt that 16 parts of mass concentrations are 15% is added into the chopped pina fiber solution of step 2)
Acid, it is slowly stirred, carries out acid treatment 28min, then vacuum suction filter is dehydrated, rinsing, obtains the fibre of the chopped pina after acid treatment
Dimension；
4) modification：At normal temperatures, it is 20~45nm 38 parts of particle diameters to be added into the chopped pineapple flaxen fiber of step 3)
Nano calcium oxide, 6 parts of vinyltrimethoxy silanes, remaining Ludox and appropriate deionized water, control its solid-liquid
Than ＜ 10%, it is slowly stirred, after being modified processing 2h, stands 24h, dehydration；
5) drying process：After being dried under the conditions of temperature≤85 DEG C, grinding, 80~100 mesh sieves are crossed, obtain described modification
Pineapple flaxen fiber.
The preparation method of the described curing compound containing modified pineapple flaxen fiber is same as Example 1.
Comparative example 1
Modification pineapple flaxen fiber in embodiment 5 is replaced with into styrene-acrylic emulsion, remaining component and preparation method and embodiment 5
It is identical.
The application method of sealing compound of the present invention：Prepared by concentration, it is not necessary to dilute；After concrete initial set
Use, it is 0.15~0.2kg/m that can use mode, the usage amounts such as spraying, brushing, roller coating2。
Sealing compound made from embodiment 1~5 and comparative example 1 is deployed into spray test in C35 and C60 concrete respectively.Examination
Test middle C35 and C60 concrete mixs and be shown in Table 1.
The concrete mix of table 1
The spraying method of sealing compound：After fresh concrete specimen molding, light smooth out surface is received, treats concrete surface final set
Before, sprayed when touching surface without free moisture with hand, quantity for spray 0.18kg/m2, spraying should be uniform.To improve maintenance effect
Fruit, spraying can be carried out in two stages：The 70% of first stage spraying total amount, after just one-step film forming；Operated again with the first stage
Vertical direction spray remaining sealing compound.Wherein spray sealing compound made from embodiment 1~5 test specimen to number respectively be 1~
5, it is 6 to spray sealing compound test specimen numbering made from comparative example 1.
Strength test：Test cube is individually placed to indoor and outdoor be exposed to the sun, conserve under the conditions of standard curing.Wherein, spray
The test cube test group 1~5 for applying sealing compound made from embodiment 1~5 is individually placed to indoor and outdoors and is exposed to the sun lower maintenance, spray
The test cube control group 1 for applying sealing compound made from comparative example 1 is individually placed to indoor and outdoors and is exposed to the sun lower maintenance, does not spray foster
The contrast test cube control group 2 of shield agent conserves under the conditions of being individually placed to above-mentioned three kinds, and surface does not spray but covered thin in addition
The test cube control group 3 of film is put to be conserved in room conditions, totally 8 class reference block；Compressive strength rate test reference
JC901-2002《Cement concrete curing agent》Carry out, contrast 3d, 28d compression strength.It is each per class test block to reduce test error
Age is molded 2 groups, in addition to the 24h demouldings after the contrast test cube shaping for placing standard curing room maintenance, other contrasts cube
The equal curing in the mold of body test block is to corresponding age.
Water retention test is carried out with reference to building material industry standard JC-901-2002.
Cracking resistance test reference CCES01-2004《Durability design and construction guidbook》In flat band method
Carry out, test the cracking situation that each concrete 2d after sealing compound sprays is tested under the conditions of being exposed to the sun in outdoor, calculate cracking face
Product, is as a result represented with cracking resistance grade.
Shrinkage test is carried out using non-contact concrete deformation tester.Blank test specimen is that nature is open, contrast
Test specimen uses the totally-enclosed covering of film, test test specimen spraying sealing compound, is uniformly measured after to be filmed, and environment temperature is 20 ±
2 DEG C, humidity is 50~60%.
The 72h water retentions test of concrete progress after being conserved to above-mentioned each group, strength test, cracking resistance test, receipts
Contracting performance test result is shown in Table 2, table 3, table 4 and table 5 respectively.
The 72h water retention test results of each group of table 2
| Project | C35 72h water retentions/% | C60 72h water retentions/% |
| 1 | 89.6 | 88.7 |
| 2 | 92.3 | 91.5 |
| 3 | 95.9 | 93.7 |
| 4 | 96.2 | 93.8 |
| 5 | 98.4 | 95.5 |
| 6 | 74.2 | 72.8 |
The compressive strength rate test result of 3 each example of table
The cracking resistance test result of 4 each example of table
The contraction test result of 5 each example of table
Above-described embodiment result shows that sealing compound of the present invention can significantly lift the water retention of concrete, water conservation
Rate is up to 88.7~98.4%, improves the compression strength of concrete；Contrast the performance of two kinds of concrete, it can be seen that the present invention
Described sealing compound advantageously in the growth of C35 late strength of concrete, and it is outdoor be exposed to the sun under the conditions of maintenance effect be slightly better than
One raises.In addition, sealing compound of the present invention has preferable cracking resistance Reduce shrinkage effect, the anticracking decrement effect of embodiment 3~5 is more
Substantially.It can be absolutely proved from above test data, the sealing compound possesses water conservation, maintenance, cracking resistance, decrement multi-efficiency, its performance
More current like product improves a lot, and has preferable application potential.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (3)
1. the preparation method of the curing compound containing modified pineapple flaxen fiber, it is characterised in that described fine containing modified pina
The curing compound of dimension, according to mass percent meter, it is made up of following components：Modified pineapple flaxen fiber 25~32%, phenylpropyl alcohol
Emulsion 48~55%, dibutyl dicarboxylic acid esters 2.3~2.7%, fluorine-carbon modified polyacrylate flow agent 0.45~0.78%, have
The water of machine silicon defoaming agent 0.12~0.18%, tributyl phosphate 0.18~0.22% and surplus；Described modification pineapple flaxen fiber
In parts by weight, it is made up of following raw material：100 parts of pineapple flaxen fiber, 14~18 parts of Ludox, mass concentration be 12~
18% 15~20 parts of concentrated hydrochloric acid, 30~48 parts of the nano calcium oxide and vinyltrimethoxy silane 4 that particle diameter is 20~45nm
~7 parts, its preparation method comprises the following steps：
1) pretreatment of pineapple flaxen fiber：Pineapple flaxen fiber is cut to 2~3mm of length chopped pineapple flaxen fiber, it is standby；
2) decentralized processing：Take 100 parts of chopped pineapple flaxen fibers of step 1), under high-speed stirred, it is molten to add 6~10 parts of silicon thereto
Glue, and appropriate deionized water, its solid-to-liquid ratio ＜ 10% is controlled, chopped pina fiber solution is made；
3) acid treatment：Added into the chopped pina fiber solution of step 2) 15~20 parts of mass concentrations be 12~18% it is dense
Hydrochloric acid, it is slowly stirred, carries out 22~30min of acid treatment, then vacuum suction filter is dehydrated, and rinsing, obtains the chopped phoenix after acid treatment
Pears flaxen fiber；
4) modification：At normal temperatures, it is 20~45nm 30~48 parts of particle diameters to be added into the chopped pineapple flaxen fiber of step 3)
Nano calcium oxide, 4~7 parts of vinyltrimethoxy silanes, remaining Ludox and appropriate deionized water, control it solid
Liquor ratio ＜ 10%, is slowly stirred, and after being modified 1.5~2.5h of processing, stands 24h, dehydration；
5) drying process：After being dried under the conditions of temperature≤85 DEG C, grinding, 80~100 mesh sieves are crossed, obtain described modification pineapple
Flaxen fiber；
The preparation method of the described curing compound containing modified pineapple flaxen fiber, it is characterised in that comprise the following steps：
(1) according to above-mentioned mass percent, the water of the half of modified pineapple flaxen fiber and formula ratio is weighed, mixing, is stirred,
Obtain the first mixed solution；
(2) according to above-mentioned mass percent, styrene-acrylic emulsion, dibutyl dicarboxylic acid esters, fluorine-carbon modified polyacrylate levelling are weighed
Agent, organic silicon defoamer, tributyl phosphate and remaining water, mixing, stir, obtain the second mixed solution；
(3) the first mixed solution of step (1) is merged with the second mixed solution of step (2), stirs, obtain institute
The curing compound containing modified pineapple flaxen fiber stated.
2. the preparation method of the curing compound according to claim 1 containing modified pineapple flaxen fiber, it is characterised in that
The curing compound containing modified pineapple flaxen fiber, according to mass percent meter, is made up of following components：Modified pina
Fiber 28~31%, styrene-acrylic emulsion 50~54%, dibutyl dicarboxylic acid esters 2.4~2.6%, fluorine-carbon modified polyacrylate levelling
Agent 0.55~0.62%, organic silicon defoamer 0.14~0.16%, the water of tributyl phosphate 0.19~0.20% and surplus；It is described
Modification pineapple flaxen fiber in parts by weight, be made up of following raw material：100 parts of pineapple flaxen fiber, 15~16 parts of Ludox,
35~42 parts of the nano calcium oxide and vinyl that 16~18 parts of the concentrated hydrochloric acid that mass concentration is 13~15%, particle diameter are 20~45nm
5~6 parts of trimethoxy silane.
3. the preparation method of the curing compound according to claim 1 containing modified pineapple flaxen fiber, it is characterised in that
The curing compound containing modified pineapple flaxen fiber, according to mass percent meter, is made up of following components：Modified pina
It is fiber 30%, styrene-acrylic emulsion 52%, dibutyl dicarboxylic acid esters 2.5%, fluorine-carbon modified polyacrylate flow agent 0.58%, organic
The water of silicon defoaming agent 0.15%, tributyl phosphate 0.19% and surplus；Described modification pineapple flaxen fiber in parts by weight,
It is made up of following raw material：16 parts of concentrated hydrochloric acid that 100 parts of pineapple flaxen fiber, 15 parts of Ludox, mass concentration are 15%, particle diameter 20
6 parts of 38 parts of~45nm nano calcium oxide and vinyltrimethoxy silane.
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| CN103601404B (en) * | 2013-11-07 | 2016-03-23 | 江苏苏博特新材料股份有限公司 | A kind of curing compound and preparation method thereof |
| CN104446123A (en) * | 2014-11-24 | 2015-03-25 | 洪其祥 | Curing agent for curing concrete |
| CN104844266A (en) * | 2015-04-30 | 2015-08-19 | 马健 | High-cracking-resistance concrete curing agent |
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| US6324324B1 (en) * | 2000-01-12 | 2001-11-27 | Lucent Technologies Inc. | Communication cable having reduced jacket shrinkage |
| EP1339650A2 (en) * | 2000-11-06 | 2003-09-03 | Institute of Paper Science and Technology | Fiber reinforced mineral-based materials and methods of making the same |
| CN103073220A (en) * | 2013-01-16 | 2013-05-01 | 江苏博特新材料有限公司 | Emulsion type concrete curing agent |
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| CN105693281B (en) | 2018-01-16 |
| CN107502074B (en) | 2019-12-24 |
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