CN106830790B - A kind of epoxy resin mortar and preparation method thereof of carbon nanotubes graft-polyamide - Google Patents
A kind of epoxy resin mortar and preparation method thereof of carbon nanotubes graft-polyamide Download PDFInfo
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- CN106830790B CN106830790B CN201710034242.6A CN201710034242A CN106830790B CN 106830790 B CN106830790 B CN 106830790B CN 201710034242 A CN201710034242 A CN 201710034242A CN 106830790 B CN106830790 B CN 106830790B
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/022—Agglomerated materials, e.g. artificial aggregates agglomerated by an organic binder
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00008—Obtaining or using nanotechnology related materials
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of epoxy resin mortar and preparation method thereof of carbon nanotubes graft-polyamide, the following steps are included: the multi-walled carbon nanotube of acidification is added in DMF solution, ultrasonic disperse is uniform, sequentially add ethylenediamine, methanol, methyl acrylate, it stirs under nitrogen atmosphere, obtains carbon nanotube graft-polyamide；Carbon nanotube graft-polyamide is added in methanol, silver-colored presoma is added, low-temperature reduced-pressure distillation obtains the carbon nanotube graft-polyamide containing nano silver；Zinc nitrate aqueous solution is slowly dropped in sodium hydrate aqueous solution, heating is vigorously stirred, and after being added dropwise, nano zine oxide is obtained by filtration in heat preservation；Carbon nanotube graft-polyamide containing nano silver is mixed with epoxy resin, cement, regenerated building aggregate, glass fibre, nano zine oxide and water-reducing agent, forms the epoxy resin mortar of carbon nanotubes graft-polyamide.Mortar each component prepared by the present invention is uniformly dispersed, and mechanical performance is excellent, wear-resisting, ageing-resistant, antibacterial.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of epoxy resin of carbon nanotubes graft-polyamide
Mortar and preparation method thereof.
Background technique
Concrete material is world today's purposes most one of wide, the maximum construction material of dosage, with modern concrete work
Enlargement, large, the continuous expansion for onlapping hydridization and concrete material application field of engineering-environment of journey, people couple
The requirement of concrete material is also higher and higher.However concrete structure receives environmental load effect, fatigue effect in use
It answers, the influence of the unfavorable factors such as corrosion effect and material aging, inevitably generates damage, degradation resistance, fatigue crack etc.
Problem directly affects the safety of the work and life of people.
Nano material is particle size in nanoscale super-fine material, and nano material is mainly by nanocrystal and crystal grain boundary
Composition, particularity in nanometer material structure and in thermodynamically extremely unstable state, therefore have quantum size effect,
Small-size effect, surface and interfacial effect, macro quanta tunnel effect, Dielectric confinement effect etc..Of common cement itself
Grain partial size is usually between 7-200 microns, but wherein 700% hydrated product hydrated calcium silicate gel size is in nanoscale model
It encloses, therefore concrete is actually the primary nano material as made of agglomerating based on hydrated calcium silicate gel, but this primary is received
The nanostructure of rice material is quite unordered, therefore other nano materials are added in concrete, is expected to original in concrete
New network is established on the basis of network structure, assigns concrete new functionality.
Currently, carbon nanotube, nano metal powder, nano-metal-oxide etc. are in concrete using relatively broad.In
A kind of aluminium oxide/zinc oxide composite thermal insulation mortar disclosed in state patent CN103848599B and preparation method thereof, the thermal insulation mortar
In contain cement, alunite, dolomite, waste sludge from paper mill, β-semi-hydrated gypsum, redispersable latex powder, aluminium oxide, zinc oxide, bamboo
Carbon fibe, calcium lignosulfonate and auxiliary agent joined waste sludge from paper mill in the thermal insulation mortar, and contain aluminium oxide and zinc oxide gold
Belong to oxide, while reducing production cost, assigns mortar heat preservation, heat-insulated, waterproof, fire-retardant performance.Chinese patent CN
A kind of carbon nanotube/polyvinyl alcohol high tenacity intelligent cement mortar and its preparation disclosed in 106007553A, in the cement mortar
It is to disperse carbon nanotube in poly- second containing carbon nanotube, polyvinyl alcohol colloidal solution, portland cement, sand, water and defoaming agent
The mixing of enol colloidal solution is used as composite modifier after carrying out in-situ polymerization, then is mixed to form mortar with other components, the mortar
It can be changed by internal resistance and reflect that substrate internal stress changes, and had excellent performance in terms of fracture toughness, but carbon is received
Mitron is only simply mixed with polyvinyl alcohol colloidal solution, and carries out chemical graft, therefore point of the carbon nanotube in mortar
Scattered property is simultaneously bad, be easy to cause the performance of concrete uneven.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of epoxy resin mortar of carbon nanotubes graft-polyamide and
Preparation method grafts on carbon nanotube and nano silver in polyamide, and epoxy resin then is added with columnar nanometer zinc oxide
In mortar, the composite mortar mechanical performance of formation is excellent, wear-resisting, ageing-resistant, antibacterial.
In order to solve the above technical problems, the technical scheme is that
A kind of epoxy resin mortar of carbon nanotubes graft-polyamide, the epoxy of the carbon nanotubes graft-polyamide
Resin mortar include carbon nanotube graft-polyamide containing nano silver, epoxy resin, cement, regenerated building aggregate, glass fibre,
Nano zine oxide and water-reducing agent, the carbon nanotube graft-polyamide containing nano silver are the carbon nanotube grafting polyamides that will be acidified
Then in-situ reducing forms what nano silver obtained to amine again, and the regenerated building aggregate is that building concrete and brick slag vibrate through hammering
It crushes washing drying to obtain, the water-reducing agent is western card Polycarboxylic Superplasticizer, and the nano zine oxide is that partial size is 50-
The columnar nanometer zinc oxide of 80nm.
As a preferred embodiment of the above technical solution, the component of the epoxy resin mortar of the carbon nanotubes graft-polyamide,
By weight, comprising: 30-40 parts of 10-20 parts of carbon nanotube graft-polyamide, epoxy resin, cement 100 containing nano silver
Part, 80-90 parts of regenerated building aggregate, 20-30 parts of glass fibre, 5-10 parts of nano zine oxide and 3-8 parts of water-reducing agent.
The present invention also provides a kind of preparation method of the epoxy resin mortar of carbon nanotubes graft-polyamide, including it is following
Step:
(1) multi-walled carbon nanotube of acidification being added in DMF solution, ultrasonic disperse is uniform, carbon nano tube dispersion liquid is obtained,
Ethylenediamine, methanol, methyl acrylate are sequentially added, magnetic agitation for 24 hours, removes extra monomer and molten under nitrogen atmosphere
Agent obtains carbon nanotube graft-polyamide；
(2) the carbon nanotube graft-polyamide by step (1) preparation is added in methanol, adds silver-colored presoma, stirring is extremely
It is completely dissolved, low-temperature reduced-pressure distillation removal methanol obtains the carbon nanotube graft-polyamide containing nano silver；
(3) zinc nitrate aqueous solution is slowly dropped in sodium hydrate aqueous solution, is added dropwise on one side, on one side at 60-90 DEG C
Heating is vigorously stirred, and after being added dropwise, is kept the temperature 2h, is separated by filtration washing, drying obtains nano zine oxide at 60 DEG C；
(4) the carbon nanotube graft-polyamide containing nano silver prepared by step (2) is built with epoxy resin, cement, regeneration
Aggregate, glass fibre, the nano zine oxide of step (3) preparation and water-reducing agent mixing are built, carbon nanotubes graft-polyamide is formed
Epoxy resin mortar.
As a preferred embodiment of the above technical solution, in the step (1), the mass parts of carbon nanotube in carbon nano tube dispersion liquid
Number is 2-3%.
As a preferred embodiment of the above technical solution, in the step (1), carbon nano tube dispersion liquid, ethylenediamine, methanol and propylene
The volume ratio of sour methyl esters is 2:1:2:2.
As a preferred embodiment of the above technical solution, it in the step (2), is received in the carbon nanotube graft-polyamide containing nano silver
The mass fraction of meter Yin is 1-3%.
As a preferred embodiment of the above technical solution, in the step (3), nitre in zinc nitrate aqueous solution and sodium hydrate aqueous solution
The mass ratio of sour zinc and sodium hydroxide is 1.5:0.4.
As a preferred embodiment of the above technical solution, in the step (3), nano zine oxide is columnar nanometer zinc oxide, nanometer
The draw ratio of zinc oxide is 6-3.5:1, partial size 50-80nm.
As a preferred embodiment of the above technical solution, in the step (4), regenerated building aggregate is building concrete and brick slag warp
Hammering, which vibrates to crush to wash to dry, to be obtained, and water-reducing agent is western card Polycarboxylic Superplasticizer.
As a preferred embodiment of the above technical solution, in the step (4), the asphalt mixtures modified by epoxy resin of the carbon nanotubes graft-polyamide
The component of rouge mortar, by weight, comprising: 10-20 parts of carbon nanotube graft-polyamide, epoxy resin 30- containing nano silver
40 parts, 100 parts of cement, 80-90 parts of regenerated building aggregate, 20-30 parts of glass fibre, 5-10 parts of nano zine oxide and water-reducing agent 3-
8 parts.
Compared with prior art, the invention has the following advantages:
(1) contain carbon nanotube and nanometer in the epoxy resin mortar of carbon nanotubes graft-polyamide prepared by the present invention
Silver, carbon nanotube and nano silver all graft in polyamide, by the dispersibility of polyamide, improve carbon nanotube and nano silver
Dispersion performance, is more advantageous to each to uniformity of epoxy resin mortar, and carbon nanotube can in epoxy resin mortar shape
At skeleton, promote the formation of new network, significantly improve the mechanical performance and scratch-resistant performance of epoxy resin mortar, improves epoxy
The endurance quality of resin mortar, and the nano silver added not only can be further improved the intensity of epoxy resin mortar and tough
Property, and the property of mortar electromagnetic shielding can be assigned, expand the application field of epoxy resin mortar.
(2) it is aoxidized in the epoxy resin mortar of carbon nanotubes graft-polyamide prepared by the present invention containing columnar nanometer
Zinc, the uvioresistant and anti-microbial property of columnar nanometer zinc oxide are more excellent, and columnar nano zine oxide is easier in asphalt mixtures modified by epoxy resin
Skeleton is formed in rouge mortar, promotes the formation of new network, further increases the mechanical property, antibacterial and ageing resistance of mortar
Energy.
(3) contain regenerated building aggregate in the epoxy resin mortar of carbon nanotubes graft-polyamide prepared by the present invention,
By promoting concrete and brick slag recycling and reusing recycling for construction material resource, improving the economic valence of construction material
Value, reduces the production cost of epoxy resin mortar.
(4) epoxy resin mortar of carbon nanotubes graft-polyamide prepared by the present invention has excellent resistance to compression, tension
Ability, and wear-resisting, ageing-resistant, antibacterial, anti-electromagnetic wave, excellent combination property, can be used for multiple fields, the market competitiveness
It is good.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail, herein illustrative examples and explanation of the invention
For explaining the present invention, but it is not as a limitation of the invention.
Embodiment 1:
(1) multi-walled carbon nanotube of acidification is added in the DMF solution of 20ml, ultrasonic disperse is uniform, obtains mass fraction
For 2% carbon nano tube dispersion liquid, the methyl acrylate of the ethylenediamine of 10ml, the methanol of 20ml, 20ml are sequentially added, in nitrogen
Atmosphere encloses lower magnetic agitation for 24 hours, removes extra monomer and solvent, obtains carbon nanotube graft-polyamide.
(2) carbon nanotube graft-polyamide is added in the methanol of 20ml, adds silver nitrate, stirring to being completely dissolved,
Low-temperature reduced-pressure distillation removal methanol, obtains the carbon nanotube graft-polyamide containing nano silver, wherein the carbon nanotube containing nano silver
The mass fraction of nano silver is 1% in graft-polyamide.
(3) zinc nitrate aqueous solution is slowly dropped in sodium hydrate aqueous solution, wherein zinc nitrate aqueous solution and hydroxide
The mass ratio of zinc nitrate and sodium hydroxide is 1.5:0.4 in sodium water solution, is added dropwise on one side, heats at 60 DEG C acutely stir on one side
It mixes, after being added dropwise, keeps the temperature 2h, be separated by filtration washing, drying obtains the columnar nanometer zinc oxide that partial size is 50nm at 60 DEG C.
(4) by weight, the carbon nanotube graft-polyamide by 10 parts containing nano silver and 30 parts of epoxy resin,
100 parts of cement, 80 parts of regenerated building aggregate, 20 parts of glass fibre, 5 parts of nano zine oxide and 3 parts of the poly- carboxylic of west card
The mixing of acids high efficiency water reducing agent, forms the epoxy resin mortar of carbon nanotubes graft-polyamide.
Embodiment 2:
(1) multi-walled carbon nanotube of acidification is added in the DMF solution of 20ml, ultrasonic disperse is uniform, obtains mass fraction
For 3% carbon nano tube dispersion liquid, the methyl acrylate of the ethylenediamine of 10ml, the methanol of 20ml, 20ml are sequentially added, in nitrogen
Atmosphere encloses lower magnetic agitation for 24 hours, removes extra monomer and solvent, obtains carbon nanotube graft-polyamide.
(2) carbon nanotube graft-polyamide is added in the methanol of 20ml, adds silver nitrate, stirring to being completely dissolved,
Low-temperature reduced-pressure distillation removal methanol, obtains the carbon nanotube graft-polyamide containing nano silver, wherein the carbon nanotube containing nano silver
The mass fraction of nano silver is 3% in graft-polyamide.
(3) zinc nitrate aqueous solution is slowly dropped in sodium hydrate aqueous solution, wherein zinc nitrate aqueous solution and hydroxide
The mass ratio of zinc nitrate and sodium hydroxide is 1.5:0.4 in sodium water solution, is added dropwise on one side, heats at 90 DEG C acutely stir on one side
It mixes, after being added dropwise, keeps the temperature 2h, be separated by filtration washing, drying obtains the columnar nanometer zinc oxide that partial size is 80nm at 60 DEG C.
(4) by weight, the carbon nanotube graft-polyamide by 20 parts containing nano silver and 40 parts of epoxy resin,
100 parts of cement, 90 parts of regenerated building aggregate, 30 parts of glass fibre, 10 parts of nano zine oxide and 8 parts of the poly- carboxylic of west card
The mixing of acids high efficiency water reducing agent, forms the epoxy resin mortar of carbon nanotubes graft-polyamide.
Embodiment 3:
(1) multi-walled carbon nanotube of acidification is added in the DMF solution of 20ml, ultrasonic disperse is uniform, obtains mass fraction
For 2.5% carbon nano tube dispersion liquid, the methyl acrylate of the ethylenediamine of 10ml, the methanol of 20ml, 20ml are sequentially added,
Magnetic agitation for 24 hours, removes extra monomer and solvent, obtains carbon nanotube graft-polyamide under nitrogen atmosphere.
(2) carbon nanotube graft-polyamide is added in the methanol of 20ml, adds silver nitrate, stirring to being completely dissolved,
Low-temperature reduced-pressure distillation removal methanol, obtains the carbon nanotube graft-polyamide containing nano silver, wherein the carbon nanotube containing nano silver
The mass fraction of nano silver is 1.5% in graft-polyamide.
(3) zinc nitrate aqueous solution is slowly dropped in sodium hydrate aqueous solution, wherein zinc nitrate aqueous solution and hydroxide
The mass ratio of zinc nitrate and sodium hydroxide is 1.5:0.4 in sodium water solution, is added dropwise on one side, heats at 70 DEG C acutely stir on one side
It mixes, after being added dropwise, keeps the temperature 2h, be separated by filtration washing, drying obtains the columnar nanometer zinc oxide that partial size is 65nm at 60 DEG C.
(4) by weight, the carbon nanotube graft-polyamide by 13 parts containing nano silver and 34 parts of epoxy resin,
100 parts of cement, 88 parts of regenerated building aggregate, 23 parts of glass fibre, 6 parts of nano zine oxide and 5 parts of the poly- carboxylic of west card
The mixing of acids high efficiency water reducing agent, forms the epoxy resin mortar of carbon nanotubes graft-polyamide.
Embodiment 4:
(1) multi-walled carbon nanotube of acidification is added in the DMF solution of 20ml, ultrasonic disperse is uniform, obtains mass fraction
For 2.3% carbon nano tube dispersion liquid, the methyl acrylate of the ethylenediamine of 10ml, the methanol of 20ml, 20ml are sequentially added,
Magnetic agitation for 24 hours, removes extra monomer and solvent, obtains carbon nanotube graft-polyamide under nitrogen atmosphere.
(2) carbon nanotube graft-polyamide is added in the methanol of 20ml, adds silver nitrate, stirring to being completely dissolved,
Low-temperature reduced-pressure distillation removal methanol, obtains the carbon nanotube graft-polyamide containing nano silver, wherein the carbon nanotube containing nano silver
The mass fraction of nano silver is 2% in graft-polyamide.
(3) zinc nitrate aqueous solution is slowly dropped in sodium hydrate aqueous solution, wherein zinc nitrate aqueous solution and hydroxide
The mass ratio of zinc nitrate and sodium hydroxide is 1.5:0.4 in sodium water solution, is added dropwise on one side, heats at 80 DEG C acutely stir on one side
It mixes, after being added dropwise, keeps the temperature 2h, be separated by filtration washing, drying obtains the columnar nanometer zinc oxide that partial size is 73nm at 60 DEG C.
(4) by weight, the carbon nanotube graft-polyamide by 14 parts containing nano silver and 36 parts of epoxy resin,
100 parts of cement, 83 parts of regenerated building aggregate, 26 parts of glass fibre, 7 parts of nano zine oxide and 5 parts of the poly- carboxylic of west card
The mixing of acids high efficiency water reducing agent, forms the epoxy resin mortar of carbon nanotubes graft-polyamide.
Embodiment 5:
(1) multi-walled carbon nanotube of acidification is added in the DMF solution of 20ml, ultrasonic disperse is uniform, obtains mass fraction
For 2.8% carbon nano tube dispersion liquid, the methyl acrylate of the ethylenediamine of 10ml, the methanol of 20ml, 20ml are sequentially added,
Magnetic agitation for 24 hours, removes extra monomer and solvent, obtains carbon nanotube graft-polyamide under nitrogen atmosphere.
(2) carbon nanotube graft-polyamide is added in the methanol of 20ml, adds silver nitrate, stirring to being completely dissolved,
Low-temperature reduced-pressure distillation removal methanol, obtains the carbon nanotube graft-polyamide containing nano silver, wherein the carbon nanotube containing nano silver
The mass fraction of nano silver is 2.9% in graft-polyamide.
(3) zinc nitrate aqueous solution is slowly dropped in sodium hydrate aqueous solution, wherein zinc nitrate aqueous solution and hydroxide
The mass ratio of zinc nitrate and sodium hydroxide is 1.5:0.4 in sodium water solution, is added dropwise on one side, heats at 70 DEG C acutely stir on one side
It mixes, after being added dropwise, keeps the temperature 2h, be separated by filtration washing, drying obtains the columnar nanometer zinc oxide that partial size is 63nm at 60 DEG C.
(4) by weight, the carbon nanotube graft-polyamide by 14 parts containing nano silver and 36 parts of epoxy resin,
100 parts of cement, 85 parts of regenerated building aggregate, 22 parts of glass fibre, 8 parts of nano zine oxide and 5 parts of the poly- carboxylic of west card
The mixing of acids high efficiency water reducing agent, forms the epoxy resin mortar of carbon nanotubes graft-polyamide.
Embodiment 6:
(1) multi-walled carbon nanotube of acidification is added in the DMF solution of 20ml, ultrasonic disperse is uniform, obtains mass fraction
For 2.9% carbon nano tube dispersion liquid, the methyl acrylate of the ethylenediamine of 10ml, the methanol of 20ml, 20ml are sequentially added,
Magnetic agitation for 24 hours, removes extra monomer and solvent, obtains carbon nanotube graft-polyamide under nitrogen atmosphere.
(2) carbon nanotube graft-polyamide is added in the methanol of 20ml, adds silver nitrate, stirring to being completely dissolved,
Low-temperature reduced-pressure distillation removal methanol, obtains the carbon nanotube graft-polyamide containing nano silver, wherein the carbon nanotube containing nano silver
The mass fraction of nano silver is 2.4% in graft-polyamide.
(3) zinc nitrate aqueous solution is slowly dropped in sodium hydrate aqueous solution, wherein zinc nitrate aqueous solution and hydroxide
The mass ratio of zinc nitrate and sodium hydroxide is 1.5:0.4 in sodium water solution, is added dropwise on one side, heats at 75 DEG C acutely stir on one side
It mixes, after being added dropwise, keeps the temperature 2h, be separated by filtration washing, drying obtains the columnar nanometer zinc oxide that partial size is 55nm at 60 DEG C.
(4) by weight, by 10-20 parts of the carbon nanotube graft-polyamide and 35 parts of asphalt mixtures modified by epoxy resin containing nano silver
Rouge, 100 parts of cement, 90 parts of regenerated building aggregate, 20 parts of glass fibre, 6 parts of nano zine oxide and 4 parts of west card are poly-
The mixing of carboxylic acid analog high efficiency water reducing agent, forms the epoxy resin mortar of carbon nanotubes graft-polyamide.
Comparative example:
By weight, by 1 part of nano silver, 9 parts of carbon nanotube, 30 parts of epoxy resin, 100 parts of cement, 80 parts
Regenerated building aggregate, 20 parts of glass fibre, 5 parts of nano zine oxide and 3 parts of western card Polycarboxylic Superplasticizer it is mixed
It closes, forms epoxy resin mortar.
Through detecting, the epoxy resin mortar and the prior art of the carbon nanotubes graft-polyamide of embodiment 1-6 preparation
The mechanical performance of epoxy resin mortar, the result of anti-microbial property and electromagnetic shielding performance it is as follows:
As seen from the above table, the mechanical property of the epoxy resin mortar of carbon nanotubes graft-polyamide prepared by the present invention is excellent
It is different, also there is antibacterial and electro-magnetic screen function.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of epoxy resin mortar of carbon nanotubes graft-polyamide, it is characterised in that: the carbon nanotubes grafting is poly-
The epoxy resin mortar of amide includes carbon nanotube graft-polyamide, epoxy resin, cement, regenerated building bone containing nano silver
Material, glass fibre, nano zine oxide and water-reducing agent, the carbon nanotube graft-polyamide containing nano silver is to receive the carbon of acidification
Then in-situ reducing forms what nano silver obtained to mitron graft-polyamide again, and the regenerated building aggregate is building concrete and brick
Slag, which vibrates to crush to wash to dry through hammering, to be obtained, and the water-reducing agent is western card Polycarboxylic Superplasticizer, described nano oxidized
Zinc is the columnar nanometer zinc oxide that partial size is 50-80nm；
The preparation method of the epoxy resin mortar of the carbon nanotubes graft-polyamide, comprising the following steps:
(1) multi-walled carbon nanotube of acidification being added in DMF solution, ultrasonic disperse is uniform, obtain carbon nano tube dispersion liquid, then according to
Secondary addition ethylenediamine, methanol, methyl acrylate, magnetic agitation for 24 hours, removes extra monomer and solvent, obtains under nitrogen atmosphere
To carbon nanotube graft-polyamide；
(2) the carbon nanotube graft-polyamide by step (1) preparation is added in methanol, adds silver-colored presoma, stirs to complete
Dissolution, low-temperature reduced-pressure distillation removal methanol, obtains the carbon nanotube graft-polyamide containing nano silver；
(3) zinc nitrate aqueous solution is slowly dropped in sodium hydrate aqueous solution, is added dropwise on one side, heated at 60-90 DEG C on one side
It is vigorously stirred, after being added dropwise, keeps the temperature 2h, be separated by filtration washing, drying obtains nano zine oxide at 60 DEG C；
(4) by the carbon nanotube graft-polyamide and epoxy resin, cement, regenerated building bone containing nano silver of step (2) preparation
Material, glass fibre, the nano zine oxide of step (3) preparation and water-reducing agent mixing, form the ring of carbon nanotubes graft-polyamide
Oxygen resin mortar.
2. a kind of epoxy resin mortar of carbon nanotubes graft-polyamide according to claim 1, it is characterised in that: institute
The component of the epoxy resin mortar of carbon nanotubes graft-polyamide is stated, by weight, comprising: the carbon nanotube containing nano silver
10-20 parts of graft-polyamide, 30-40 parts of epoxy resin, 100 parts of cement, 80-90 parts of regenerated building aggregate, glass fibre 20-30
Part, 5-10 parts of nano zine oxide and 3-8 parts of water-reducing agent.
3. a kind of preparation method of the epoxy resin mortar of carbon nanotubes graft-polyamide, which is characterized in that including following step
It is rapid:
(1) multi-walled carbon nanotube of acidification being added in DMF solution, ultrasonic disperse is uniform, obtain carbon nano tube dispersion liquid, then according to
Secondary addition ethylenediamine, methanol, methyl acrylate, magnetic agitation for 24 hours, removes extra monomer and solvent, obtains under nitrogen atmosphere
To carbon nanotube graft-polyamide；
(2) the carbon nanotube graft-polyamide by step (1) preparation is added in methanol, adds silver-colored presoma, stirs to complete
Dissolution, low-temperature reduced-pressure distillation removal methanol, obtains the carbon nanotube graft-polyamide containing nano silver；
(3) zinc nitrate aqueous solution is slowly dropped in sodium hydrate aqueous solution, is added dropwise on one side, heated at 60-90 DEG C on one side
It is vigorously stirred, after being added dropwise, keeps the temperature 2h, be separated by filtration washing, drying obtains nano zine oxide at 60 DEG C；
(4) by the carbon nanotube graft-polyamide and epoxy resin, cement, regenerated building bone containing nano silver of step (2) preparation
Material, glass fibre, the nano zine oxide of step (3) preparation and water-reducing agent mixing, form the ring of carbon nanotubes graft-polyamide
Oxygen resin mortar.
4. a kind of preparation method of the epoxy resin mortar of carbon nanotubes graft-polyamide according to claim 3,
Be characterized in that: in the step (1), the mass fraction of carbon nanotube is 2-3% in carbon nano tube dispersion liquid.
5. a kind of preparation method of the epoxy resin mortar of carbon nanotubes graft-polyamide according to claim 3,
Be characterized in that: in the step (1), carbon nano tube dispersion liquid, ethylenediamine, methanol and methyl acrylate volume ratio be 2:1:2:
2。
6. a kind of preparation method of the epoxy resin mortar of carbon nanotubes graft-polyamide according to claim 3,
Be characterized in that: in the step (2), the mass fraction of nano silver is 1-3% in the carbon nanotube graft-polyamide containing nano silver.
7. a kind of preparation method of the epoxy resin mortar of carbon nanotubes graft-polyamide according to claim 3,
It is characterized in that: in the step (3), the mass ratio of zinc nitrate and sodium hydroxide in zinc nitrate aqueous solution and sodium hydrate aqueous solution
For 1.5:0.4.
8. a kind of preparation method of the epoxy resin mortar of carbon nanotubes graft-polyamide according to claim 3,
Be characterized in that: in the step (3), nano zine oxide is columnar nanometer zinc oxide, and the draw ratio of nano zine oxide is 6-3.5:
1, partial size 50-80nm.
9. a kind of preparation method of the epoxy resin mortar of carbon nanotubes graft-polyamide according to claim 3,
Be characterized in that: in the step (4), regenerated building aggregate is building concrete and brick slag dries through hammering crushing washing of vibrating
It arrives, water-reducing agent is western card Polycarboxylic Superplasticizer.
10. a kind of preparation method of the epoxy resin mortar of carbon nanotubes graft-polyamide according to claim 3,
It is characterized in that: in the step (4), the component of the epoxy resin mortar of the carbon nanotubes graft-polyamide, by weight
Meter, comprising: 100 parts of 30-40 parts of 10-20 parts of carbon nanotube graft-polyamide, epoxy resin, cement, regeneration containing nano silver are built
Build 80-90 parts of aggregate, 20-30 parts of glass fibre, 5-10 parts of nano zine oxide and 3-8 parts of water-reducing agent.
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| CN1718614A (en) * | 2005-07-14 | 2006-01-11 | 上海交通大学 | In situ synthesis polyimide grafted carbon nano-tube and its preparation method |
| CN104387005A (en) * | 2014-10-30 | 2015-03-04 | 苏州莱特复合材料有限公司 | Carbon nanotube/cement composite material and preparation method thereof |
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| CN1718614A (en) * | 2005-07-14 | 2006-01-11 | 上海交通大学 | In situ synthesis polyimide grafted carbon nano-tube and its preparation method |
| CN104387005A (en) * | 2014-10-30 | 2015-03-04 | 苏州莱特复合材料有限公司 | Carbon nanotube/cement composite material and preparation method thereof |
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