CN107739167A - A kind of bamboo scraps flyash composite plate - Google Patents
A kind of bamboo scraps flyash composite plate Download PDFInfo
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- CN107739167A CN107739167A CN201710977190.6A CN201710977190A CN107739167A CN 107739167 A CN107739167 A CN 107739167A CN 201710977190 A CN201710977190 A CN 201710977190A CN 107739167 A CN107739167 A CN 107739167A
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- bamboo scraps
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- flyash
- scraps
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/12—Condensation polymers of aldehydes or ketones
- C04B26/122—Phenol-formaldehyde condensation polymers
-
- 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
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
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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
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
- C04B18/26—Wood, e.g. sawdust, wood shavings
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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
- C04B20/00—Use 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
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a kind of bamboo scraps flyash composite plate, belong to building material technical field.The present invention dries bamboo scraps, obtains dry bamboo scraps；Gained drying bamboo scraps are stirred with turpentine oil, soaked, are filtered, dries, produces single treatment bamboo scraps；Gained single treatment bamboo scraps are soaked by being stirred with tetraethyl orthosilicate, filtering, obtain after-treatment bamboo scraps；Gained after-treatment bamboo scraps are stirred with isocyanates, soaked, filtering, obtain modified bamboo scraps；Bamboo scraps, activating fly ash, phenolic resin will be modified, curing agent, water, polyvinyl alcohol liquid, silane coupler, surfactant are placed in batch mixer, are stirred, mixed slurry is obtained, releasing agent is sprayed into mould, then note mixed slurry is injected in mould, then mould is placed in hot press, it is hot-forming, the demoulding, produce bamboo scraps flyash composite plate.Bamboo scraps flyash composite plate provided by the invention has excellent mechanical property.
Description
Technical field
The invention discloses a kind of bamboo scraps flyash composite plate, belong to building material technical field.
Background technology
Flyash is the solid waste of coal-burning power plant's discharge, and the maximum solid industrial of discharge capacity gives up in industrial circle
Gurry, China are coal producers maximum in the world, and up to 2,000,000,000 t, wherein most is used to generate electricity annual producing coal amount, the discharge of power plant's year
The t of flyash 3~400,000,000.A large amount of soils are not only occupied in the discharge of flyash, and seriously pollute environment, to ecology and environment structure
Dual destruction, therefore, the comprehensive utilization for carrying out flyash have important strategic importance.Flyash be crystalline solid, vitreum with
And the baroque complex of a small amount of unburned carbon contained composition, gray or canescence in drying regime, it is in when water content is big
Grey black.The chemical composition of thermal power plant's flyash is：SiO238%~54%, Al2O323%~38%, Fe2O34%~6%, CaO3%~
10%th, MgO0.5%~4%, SO30.1%~1.2%.With the development of power industry, the flyash discharge capacity of coal-burning power plant increases year by year
Add, turn into one of larger industrial residue of the current discharge capacity in China.Substantial amounts of flyash is untreated, will produce airborne dust, pollutes
Air；River can be caused to silt up if being discharged into water system, and toxic chemical substance therein can also damage to human body and biology.
But flyash resourcebility utilizes, and flyash is in building industry, building materials industry, agricultural, chemical industry etc. at present
Aspect is developed.Flyash is added in construction material, flyash composite plate can be made, had in building engineering field
Also be present the problem of mechanical property is bad in preferable application prospect, still, flyash composite plate traditional at present, therefore, also need
Experimental study is carried out to it, is developed for flyash in terms of composite and reference is provided.
The content of the invention
The present invention solves the technical problem of：For traditional flyash composite plate mechanics performance it is bad the problem of, carry
A kind of bamboo scraps flyash composite plate is supplied.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of bamboo scraps flyash composite plate, is made up of the raw material of following parts by weight：30~40 parts of modified bamboo scraps, 30~40 parts
Activating fly ash, 30~40 parts of phenolic resin, 8~10 parts of curing agent, 10~20 parts of water, 10~20 parts of polyvinyl alcohol liquid, 8~10
Part silane coupler, 3~5 parts of surfactants；
The modification procedure of the modified bamboo scraps is：
（1）Bamboo scraps are dried, obtain dry bamboo scraps；
（2）Above-mentioned gained is dried into bamboo scraps and turpentine oil in mass ratio 1：50~1：100 are stirred, and soak, and filter, and dry,
Produce single treatment bamboo scraps；
（3）By above-mentioned gained single treatment bamboo scraps and tetraethyl orthosilicate in mass ratio 1：50~1：100 are stirred, immersion, mistake
Filter, obtains after-treatment bamboo scraps；
（4）By above-mentioned gained after-treatment bamboo scraps and isocyanates in mass ratio 1：50~1：100 are stirred, and soak, filtering,
Bamboo scraps must be modified；
The preparation process of the bamboo scraps flyash composite plate is：Each raw material is weighed by raw material composition, by modified bamboo scraps, activates fine coal
Ash, phenolic resin, curing agent, water, polyvinyl alcohol liquid, silane coupler, surfactant are stirred, and injection molding is hot-forming,
The demoulding, produces bamboo scraps flyash composite plate.
The modifying process of the activating fly ash is：By flyash ball mill grinding, sieving, refinement flyash is obtained；By weight
Number meter, flyash is refined by 10~20 parts, 40~50 parts of hydrogen peroxide, 40~50 parts of liquor potassic permanganate mixing, sulfuric acid is added dropwise
PH to 5.2~5.5 is adjusted, heating stirring mixing, filters, dries, produce activating fly ash.
The phenolic resin is phenolic resin 2123, any one in phenolic resin 2130 or phenolic resin 2127.
The curing agent is ethylenediamine, any one in hexamethylene diamine or diethylenetriamine.
The preparation process of the polyvinyl alcohol liquid is：By polyvinyl alcohol and water in mass ratio 1：50~1：100 mixing swellings
Afterwards, heating stirring dissolves, and produces polyvinyl alcohol liquid.
The silane coupler is silane resin acceptor kh-550, in silane coupler KH-560 or Silane coupling reagent KH-570
Any one.
The surfactant is polyethylene glycol, any one in APG or neopelex.
Step（4）The isocyanates is toluene di-isocyanate(TDI), methyl diphenylene diisocyanate or trimethyl cyclohexane
Any one in diisocyanate.
The beneficial effects of the invention are as follows：
（1）The present invention first, soaks through turpentine oil by adding modified bamboo scraps, removes most vegetable wax in bamboo scraps, enhancing
The penetrating power of bamboo scraps cell, then the immersion by tetraethyl orthosilicate and isocyanates so that tetraethyl orthosilicate and isocyanates
Penetrate into cell, and reacted in cell interior residual moisture, wherein tetraethyl orthosilicate and water reaction generation silica,
The silica of generation is adsorbed by bamboo scraps cell membrane inwall, so as to improve cell intensity, product mechanical property is realized from cell
The lifting of rank, and isocyanates can generate a certain amount of carbon dioxide and methylamine with water reaction, during hot-forming,
Gas, which is pressurized, in cell overflows expansion, makes cell rupture, the methylamine penetrated can promote phenolic resin to be crosslinked, and form three dimensional network
Network, the mechanical property of system is lifted, while the silica that cell membrane inwall adsorbs after rupture is exposed, the dioxy exposed
SiClx participates in pulverized burned coal ash hydration process, forms three-dimensional network, interspersed to be crosslinking in phenolic resin curing and be cross-linked to form in three-dimensional network,
The crosslink density of enhancing system, further lift the mechanical property of system；
（2）The present invention is by adding activating fly ash and polyvinyl alcohol liquid, first, by the way that flyash is crushed, lifts flyash
Activity, secondly, the immersion through hydrogen peroxide and liquor potassic permanganate, the activity of system is further enhanced, in hot-forming process
In, on the one hand, flyash is activated so that the bond strength of system is lifted, so as to lift the mechanical property of system, separately
On the one hand, sylvite ionization generation potassium ion in generation structure, potassium ion can promote polyvinyl alcohol crosslinked, and the three-dimensional network of formation is entered
The interspersed crosslinking of one step, meanwhile, polyvinyl alcohol has good absorption property, the flyash of adsorbable system, makes its dispersed
In system, the cross-linked network that the three-dimensional network of pulverized burned coal ash hydration formation is formed with polyvinyl alcohol interts, and further enhances system
Crosslink density, further lifted system mechanical property.
Embodiment
Flyash is placed in ball mill, under the conditions of rotating speed is 500~600r/min, ball mill grinding, crosses 300~400
Purpose is sieved, and obtains refinement flyash；To count in parts by weight, flyash are refined by 10~20 parts, 40~50 parts of mass fractions are 20~
30% hydrogen peroxide, the liquor potassic permanganate that 40~50 parts of mass fractions are 20~30% are added in single-necked flask, then use rubber head
The sulphur acid for adjusting pH that mass fraction is 8~10% is added dropwise into three-necked flask and is placed in number to 5.2~5.5, and by single-necked flask for dropper
It it is 60~80 DEG C in temperature, under the conditions of rotating speed is 200~300r/min, heating stirring is anti-in the aobvious constant temperature blender with magnetic force that tests the speed
1~2h is answered, obtains reaction solution, then by gained reacting liquid filtering, obtains filter residue, then filter residue is placed in vacuum freezing drying oven by gained
In, 1~2h is dried, produces activating fly ash；By polyvinyl alcohol and water in mass ratio 1：50~1：100 add in No. 1 beaker, use
After glass bar is stirred 20~30min, 3~4h of swelling is stood, then No. 1 beaker is moved into digital display and tested the speed temperature constant magnetic stirring
Device, it is 95~100 DEG C in temperature, under the conditions of rotating speed is 400~500r/min, heating stirring dissolves 40~50min, produces poly- second
Enol liquid；It is 4~8% that bamboo scraps are placed in into drying to moisture content in baking oven, obtains dry bamboo scraps, gained is dried into bamboo scraps and turpentine oil
In mass ratio 1：50~1：100 are placed in No. 2 beakers, in rotating speed be 200~300r/min under the conditions of, be stirred immersion 1~
2h, soak is obtained, then filter gained soak, obtain filter cake, then gained filter cake is placed in vacuum freezing drying oven, dried
1~2h, produce single treatment bamboo scraps；By gained single treatment bamboo scraps and tetraethyl orthosilicate in mass ratio 1：50~1：100 are placed in 3
In number beaker, under the conditions of rotating speed is 300~400r/min, after being stirred 1~2h of immersion, filtering, after-treatment bamboo scraps are obtained；
By gained after-treatment bamboo scraps and isocyanates in mass ratio 1：50~1：100 are placed in No. 4 beakers, in rotating speed be 300~
Under the conditions of 400r/min, after being stirred 1~2h of immersion, filtering, modified bamboo scraps are obtained；Count in parts by weight, 30~40 parts are changed
Property bamboo scraps, 30~40 parts of activating fly ash, 30~40 parts of phenolic resin, 8~10 parts of curing agent, 10~20 parts of water, 10~20 parts
Polyvinyl alcohol liquid, 8~10 parts of silane couplers, 3~5 parts of surfactants are placed in batch mixer, in rotating speed be 1200~
Under the conditions of 1300r/min, high-speed stirred mixes 30~50min, obtains mixed slurry, and releasing agent is sprayed into mould, then will mixing
Slurry injection mould in, then mould is placed in hot press, in temperature be 130~150 DEG C, pressure be 3~5MPa under the conditions of,
After hot-forming, the demoulding, bamboo scraps flyash composite plate is produced.The phenolic resin is phenolic resin 2123, phenolic resin 2130
Or any one in phenolic resin 2127.The curing agent is ethylenediamine, any one in hexamethylene diamine or diethylenetriamine.
The silane coupler is silane resin acceptor kh-550, any one in silane coupler KH-560 or Silane coupling reagent KH-570
Kind.The surfactant is polyethylene glycol, any one in APG or neopelex.The isocyanic acid
Ester is toluene di-isocyanate(TDI), any one in methyl diphenylene diisocyanate or trimethylhexane diisocyanate.Institute
Releasing agent is stated as emulsification methyl-silicone oil, any one is obtained in silicones or silicone grease.
Example 1
Flyash is placed in ball mill, under the conditions of rotating speed is 600r/min, ball mill grinding, the sieve of 400 mesh is crossed, obtains refinement powder
Coal ash；Count in parts by weight, refine flyash, the hydrogen peroxide that 50 parts of mass fractions are 30% by 20 parts, 50 parts of mass fractions are
30% liquor potassic permanganate is added in single-necked flask, and it is 10% that mass fraction is then added dropwise into three-necked flask with rubber head dropper
Single-necked flask is placed in digital display and tested the speed in constant temperature blender with magnetic force by sulphur acid for adjusting pH to 5.5, is 80 DEG C in temperature, rotating speed is
Under the conditions of 300r/min, heating stirring reaction 2h, reaction solution is obtained, then by gained reacting liquid filtering, obtain filter residue, then gained will filter
Slag is placed in vacuum freezing drying oven, is dried 2h, is produced activating fly ash；By polyvinyl alcohol and water in mass ratio 1：100 add 1
In number beaker, after being stirred 30min with glass bar, swelling 4h is stood, then No. 1 beaker is moved into the digital display constant temperature magnetic force that tests the speed and stirred
Device is mixed, is 100 DEG C in temperature, under the conditions of rotating speed is 500r/min, heating stirring dissolving 50min, produces polyvinyl alcohol liquid；By bamboo
It is 8% that bits, which are placed in baking oven and dried to moisture content, obtains dry bamboo scraps, and gained is dried into bamboo scraps and turpentine oil in mass ratio 1：100 put
In No. 2 beakers, under the conditions of rotating speed is 300r/min, immersion 2h is stirred, soak is obtained, then by gained soak mistake
Filter, obtains filter cake, then gained filter cake is placed in vacuum freezing drying oven, dries 2h, produces single treatment bamboo scraps；By gained once
Handle bamboo scraps and tetraethyl orthosilicate in mass ratio 1：100 are placed in No. 3 beakers, and under the conditions of rotating speed is 400r/min, stirring is mixed
After closing immersion 2h, filtering, after-treatment bamboo scraps are obtained；By gained after-treatment bamboo scraps and isocyanates in mass ratio 1：100 are placed in 4
In number beaker, under the conditions of rotating speed is 400r/min, after being stirred immersion 2h, filtering, modified bamboo scraps are obtained；In parts by weight
Meter, by 40 parts of modified bamboo scraps, 40 parts of activating fly ash, 40 parts of phenolic resin, 10 parts of curing agent, 20 parts of water, 20 parts of polyvinyl alcohol
Liquid, 10 parts of silane couplers, 5 parts of surfactants are placed in batch mixer, under the conditions of rotating speed is 1300r/min, high-speed stirred
50min is mixed, obtains mixed slurry, releasing agent is sprayed into mould, then mixed slurry is injected in mould, is then placed in mould
In hot press, it is 150 DEG C in temperature, under the conditions of pressure is 5MPa, after hot-forming, the demoulding, produces bamboo scraps flyash composite plate.
The phenolic resin is phenolic resin 2123.The curing agent is ethylenediamine.The silane coupler is silane coupler KH-
550.The surfactant is polyethylene glycol.The isocyanates is toluene di-isocyanate(TDI).The releasing agent is emulsification first
Base silicone oil.
Example 2
Flyash is placed in ball mill, under the conditions of rotating speed is 600r/min, ball mill grinding, the sieve of 400 mesh is crossed, obtains refinement powder
Coal ash；Count in parts by weight, refine flyash, the hydrogen peroxide that 50 parts of mass fractions are 30% by 20 parts, 50 parts of mass fractions are
30% liquor potassic permanganate is added in single-necked flask, and it is 10% that mass fraction is then added dropwise into three-necked flask with rubber head dropper
Single-necked flask is placed in digital display and tested the speed in constant temperature blender with magnetic force by sulphur acid for adjusting pH to 5.5, is 80 DEG C in temperature, rotating speed is
Under the conditions of 300r/min, heating stirring reaction 2h, reaction solution is obtained, then by gained reacting liquid filtering, obtain filter residue, then gained will filter
Slag is placed in vacuum freezing drying oven, is dried 2h, is produced activating fly ash；By polyvinyl alcohol and water in mass ratio 1：100 add 1
In number beaker, after being stirred 30min with glass bar, swelling 4h is stood, then No. 1 beaker is moved into the digital display constant temperature magnetic force that tests the speed and stirred
Device is mixed, is 100 DEG C in temperature, under the conditions of rotating speed is 500r/min, heating stirring dissolving 50min, produces polyvinyl alcohol liquid；By weight
Number meter is measured, by 40 parts of bamboo scraps, 40 parts of activating fly ash, 40 parts of phenolic resin, 10 parts of curing agent, 20 parts of water, 20 parts of polyethylene
Alcohol liquid, 10 parts of silane couplers, 5 parts of surfactants are placed in batch mixer, under the conditions of rotating speed is 1300r/min, high-speed stirring
Mixing 50min is mixed, obtains mixed slurry, releasing agent is sprayed into mould, then mixed slurry is injected in mould, then puts mould
In hot press, it is 150 DEG C in temperature, under the conditions of pressure is 5MPa, after hot-forming, the demoulding, it is compound produces bamboo scraps flyash
Plate.The phenolic resin is phenolic resin 2123.The curing agent is ethylenediamine.The silane coupler is silane coupler
KH-550.The surfactant is polyethylene glycol.The isocyanates is toluene di-isocyanate(TDI).The releasing agent is emulsification
Methyl-silicone oil.
Example 3
Flyash is placed in ball mill, under the conditions of rotating speed is 600r/min, ball mill grinding, the sieve of 400 mesh is crossed, obtains refinement powder
Coal ash；It is 8% that bamboo scraps are placed in into drying to moisture content in baking oven, obtains dry bamboo scraps, and gained is dried into bamboo scraps and presses quality with turpentine oil
Than 1：100 are placed in No. 2 beakers, under the conditions of rotating speed is 300r/min, is stirred immersion 2h, soak is obtained, then by institute
Soak filtering is obtained, obtains filter cake, then gained filter cake is placed in vacuum freezing drying oven, 2h is dried, produces single treatment bamboo scraps；
By gained single treatment bamboo scraps and tetraethyl orthosilicate in mass ratio 1：100 are placed in No. 3 beakers, in rotating speed be 400r/min conditions
Under, after being stirred immersion 2h, filtering, obtain after-treatment bamboo scraps；By gained after-treatment bamboo scraps and isocyanates in mass ratio
1：100 are placed in No. 4 beakers, under the conditions of rotating speed is 400r/min, after being stirred immersion 2h, filtering, obtain modified bamboo scraps；Press
Parts by weight meter, by 40 parts of modified bamboo scraps, 40 parts of refinement flyash, 40 parts of phenolic resin, 10 parts of curing agent, 20 parts of water, 10 parts
Silane coupler, 5 parts of surfactants are placed in batch mixer, under the conditions of rotating speed is 1300r/min, high-speed stirred mixing
50min, mixed slurry is obtained, releasing agent is sprayed into mould, then mixed slurry is injected in mould, mould is then placed in hot pressing
In machine, it is 150 DEG C in temperature, under the conditions of pressure is 5MPa, after hot-forming, the demoulding, produces bamboo scraps flyash composite plate.It is described
Phenolic resin is phenolic resin 2123.The curing agent is ethylenediamine.The silane coupler is silane resin acceptor kh-550.Institute
It is polyethylene glycol to state surfactant.The isocyanates is toluene di-isocyanate(TDI).The releasing agent is emulsification methyl-silicone oil.
Comparative example：The flyash composite plate of Hebei Building Materials Factory production.
The gained flyash composite plate of example 1 to 3 and comparative example product are subjected to performance detection, specific detection method is as follows：
MOR：Examined by GB/T17657 test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels 4.8 regulation
Survey；Tensile property：Tested by GB/T1040.2, sample is dumb-bell shape, draw speed 50mm/min；Impact strength：By GB/
T1843 is tested, and specimen size is 10mm × 15mm × 120mm.
Specific testing result is as shown in table 1：
Table 1
From the testing result of table 1, present invention gained bamboo scraps flyash composite plate has excellent mechanical property.
Claims (8)
- A kind of 1. bamboo scraps flyash composite plate, it is characterised in that：It is made up of the raw material of following parts by weight：30~40 parts of modifications Bamboo scraps, 30~40 parts of activating fly ash, 30~40 parts of phenolic resin, 8~10 parts of curing agent, 10~20 parts of water, 10~20 parts poly- Vinyl alcohol liquid, 8~10 parts of silane couplers, 3~5 parts of surfactants；The modification procedure of the modified bamboo scraps is：（1）Bamboo scraps are dried, obtain dry bamboo scraps；（2）Above-mentioned gained is dried into bamboo scraps and turpentine oil in mass ratio 1：50~1：100 are stirred, and soak, and filter, and dry, Produce single treatment bamboo scraps；（3）By above-mentioned gained single treatment bamboo scraps and tetraethyl orthosilicate in mass ratio 1：50~1：100 are stirred, immersion, mistake Filter, obtains after-treatment bamboo scraps；（4）By above-mentioned gained after-treatment bamboo scraps and isocyanates in mass ratio 1：50~1：100 are stirred, and soak, filtering, Bamboo scraps must be modified；The preparation process of the bamboo scraps flyash composite plate is：Each raw material is weighed by raw material composition, by modified bamboo scraps, activates fine coal Ash, phenolic resin, curing agent, water, polyvinyl alcohol liquid, silane coupler, surfactant are stirred, and injection molding is hot-forming, The demoulding, produces bamboo scraps flyash composite plate.
- A kind of 2. bamboo scraps flyash composite plate according to claim 1, it is characterised in that：The activating fly ash was modified Cheng Wei：By flyash ball mill grinding, sieving, refinement flyash is obtained；Count in parts by weight, by 10~20 parts refine flyash, 40 ~50 parts of hydrogen peroxide, 40~50 parts of liquor potassic permanganate mixing, dropwise addition sulphur acid for adjusting pH to 5.2~5.5, heating stirring mixing, Filtering, dry, produce activating fly ash.
- A kind of 3. bamboo scraps flyash composite plate according to claim 1, it is characterised in that：The phenolic resin is phenolic resin 2123, any one in phenolic resin 2130 or phenolic resin 2127.
- A kind of 4. bamboo scraps flyash composite plate according to claim 1, it is characterised in that：The curing agent is ethylenediamine, oneself Any one in diamines or diethylenetriamine.
- A kind of 5. bamboo scraps flyash composite plate according to claim 1, it is characterised in that：The preparation of the polyvinyl alcohol liquid Cheng Wei：By polyvinyl alcohol and water in mass ratio 1：50~1：After 100 mixing swellings, heating stirring dissolving, polyvinyl alcohol liquid is produced.
- A kind of 6. bamboo scraps flyash composite plate according to claim 1, it is characterised in that：The silane coupler is that silane is even Join agent KH-550, any one in silane coupler KH-560 or Silane coupling reagent KH-570.
- A kind of 7. bamboo scraps flyash composite plate according to claim 1, it is characterised in that：The surfactant is poly- second two Any one in alcohol, APG or neopelex.
- A kind of 8. bamboo scraps flyash composite plate according to claim 1, it is characterised in that：Step（4）The isocyanates is Any one in toluene di-isocyanate(TDI), methyl diphenylene diisocyanate or trimethylhexane diisocyanate.
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| CN108608530A (en) * | 2018-05-18 | 2018-10-02 | 赵顺全 | A kind of preparation method of bending resistance bamboo fiberboard |
| CN109280324A (en) * | 2018-08-31 | 2019-01-29 | 郭迎庆 | A kind of impact resistance light weight composite floor |
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