CN109250954A - A kind of heat-insulating and fire-proof environment-friendly sheet and preparation method thereof - Google Patents
A kind of heat-insulating and fire-proof environment-friendly sheet and preparation method thereof Download PDFInfo
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- CN109250954A CN109250954A CN201811212136.3A CN201811212136A CN109250954A CN 109250954 A CN109250954 A CN 109250954A CN 201811212136 A CN201811212136 A CN 201811212136A CN 109250954 A CN109250954 A CN 109250954A
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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
- C04B26/16—Polyurethanes
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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
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/06—Acrylates
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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
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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
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention belongs to plate manufacturing technology fields, more particularly to a kind of heat-insulating and fire-proof environment-friendly sheet and preparation method thereof, heat-insulating and fire-proof environment-friendly sheet of the invention is made of the raw material of following parts by weight: modified 10-15 parts of agronomic crop fibre powder, 3-5 parts of adhesive, 8-10 parts of modification infusorial earth, 10-15 parts of surface modified fibre element nanocrystal, 8-10 parts of modified kaolin and 15-20 parts of water；The preparation method of heat-insulating and fire-proof environment-friendly sheet of the present invention comprises the steps of: (1) taking the raw material of above-mentioned parts by weight to be added in blender and stir, uniform mixed slurry is made；(2) by pressed sizing after the heating of uniform mixed slurry；(3) it polishes after drying the plate of pressed sizing.The present invention is by using all kinds of modified feedstocks, so that heat-insulating and fire-proof environment-friendly sheet prepared by the present invention has excellent fire-retardant and thermal insulation property, and preparation method is simply scientific and efficient.
Description
Technical field
The invention belongs to plate manufacturing technology fields, and in particular to a kind of heat-insulating and fire-proof environment-friendly sheet and preparation method thereof.
Background technique
With the development of economy and the improvement of people's living standards, living conditions gradually improve, and house fitting-up is more and bolder and more unconstrained
China.In house fitting-up, indoor wall decorative plate is essential important component, be can bring it is convenient and easypro
The ornament materials of suitable sense, the quality of performance directly affect decorative effect.
Common plate mainly uses wooden structures, although wooden structures decorative panel have the characteristics that it is light-weight, however, its
Perishable, aging and expansion in moist more water environments, are also harassed vulnerable to worm ant.With increasingly poor, the decoration of the forest reserves
Plate is gradually made the transition from single conventional wooden structural plate to other types plate.In commercially available other types plate
In, using oxidation siliceous material, aoxidize calcareous material, the decoration that the slurry that asbestos and water are mixed in a certain ratio is prepared
Plate is relatively conventional, wherein oxidation siliceous material generallys use silica flour, and the cost is relatively high, and asbestos have certain poison
Property, environment is polluted, and decorative panel intensity is inadequate, and the demand of certain occasions is not achieved.
Common plate material disclosed in the prior art mostly uses the adhesive of formaldehyde and urea synthesizing to reach adhesive effect, although
Bonding property is excellent, but the formaldehyde that wherein dissociates can cause indoor air quality to deteriorate, and cause to the health of human body serious
Harm.People's Long Term Contact low concentration formaldehyde can cause chronic respiratory disease, nasopharyngeal carcinoma, colon cancer, the cancer of the brain, nucleus base
Because of mutation, pregnancy syndrome, leukaemia, memory and intelligence decline etc..Concentration of formaldehyde Gao Shike causes constitution to decline, immunity
Decline, be easy to flu, alopecia, appetite fall sharply, weight loss, it is weak all over, have a headache, angina pectoris and insomnia, serious person can also draw
Play cell nucleus gene mutation, the crosslinking of DNA singly-bound and DNA and protein cross and the reparation for resisting DNA damage.
Plate is other than needing preferable visual effect, it is also necessary to have fire-retardant, excellent in mechanical performance, it is anti-radiation, every
The performances such as sound, environmental protection, and often performance is single for plate in the prior art, is unable to satisfy actual demand.
The Chinese invention patent of Publication No. CN108249949A discloses a kind of heat preservation and soundproof plate for building, the plate
Actual demand is still not achieved in the heat insulation effect of material.
Therefore, it develops that a kind of mechanics mechanical performance is excellent, is provided simultaneously with good fire-retardant and thermal insulation property multi-functional ring
It is imperative to protect plate plate.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of heat-insulating and fire-proof environment-friendly sheet and its preparation sides
Method, the heat-insulating and fire-proof environment-friendly sheet have excellent heat preservation and flame retardant property, and the raw material of use is environmentally protective, and preparation method letter
It is single scientific and efficient.
To achieve the above object, the present invention adopts the following technical scheme:
The present invention provides a kind of heat-insulating and fire-proof environment-friendly sheets, are made of the raw material of following parts by weight: modified agronomic crop fibre powder
10-15 parts, 3-5 parts of adhesive, 8-10 parts of modification infusorial earth, 10-15 parts of surface modified fibre element nanocrystal, modified kaolin
8-10 parts and water 15-20 parts.
Preferably, a kind of heat-insulating and fire-proof environment-friendly sheet, is made of the raw material of following parts by weight: modified crops are fine
Tie up 12 parts of powder, 4 parts of adhesive, 9 parts of modification infusorial earth, 12 parts of surface modified fibre element nanocrystal, 9 parts of modified kaolin and water
18 parts.
Preferably, the modified agronomic crop fibre powder is by rice straw, broomcorn straw, wheat stalk according to weight ratio 4:
2:3 is added in pulverizer after drying and crushes, and takes out after adding the hydrogen peroxide dipping 40min that mass fraction is 5%, clear water rinses
It 3 times, is sent into drying box and dries, add the sodium hydrate aqueous solution that mass fraction is 7%, under the conditions of 60 DEG C, insulated and stirred
20-30min, filtering wash filter residue to neutrality with clear water, and then drying is made.
Preferably, the binder is one of polyurethane resin, acrylic resin or phenolic resin.
Preferably, the modification infusorial earth is that former diatomite, distilled water and dilute sulfuric acid are added according to weight ratio 15:10:1
It in reaction vessel, is put into drying box after sealing, 180-200min is reacted under conditions of 150-160 DEG C, takes out and puts after cooling
Enter in blender, distilled water is added, setting speed of agitator is 80-100r/min, stirs 60-80min, then filters, and washs 3
It is secondary, it is transferred in dryer, dries 60-80min under the conditions of 100 DEG C, be transferred in calcining furnace, calcine 80-100min, calcining
After natural cooling be made.
Preferably, the surface modified fibre element nanocrystal is that benzene two (first) acylimino methyl-phosphoric acid dimethyl ester is molten
In high boiling solvent, the heating stirring at 85-95 DEG C is added nano cellulose crystal after it is completely dissolved, is stirred to react
6-8h, obtains crude product after then removing solvent with Rotary Evaporators, grind into powder is made.
Preferably, the modified kaolin is calcining 3h under being placed in kaolin in Muffle furnace under the conditions of 700-800 DEG C,
And furnace cooling, take calcined product to react 8-12h under the conditions of 80-100 DEG C of water bath with thermostatic control with active carbon and aluminum sulfate, to anti-
Mixed solution is centrifuged when should terminate, is washed, dry 10-13h, ground 150-200 at 100-130 DEG C
Mesh is made.
The present invention also provides a kind of preparation methods of heat-insulating and fire-proof environment-friendly sheet, are made of following preparation step:
Step 1: based on raw material weight number, taking the following raw material: modified agronomic crop fibre powder, adhesive, modification infusorial earth, surface
Modified cellulose nanocrystal, modified kaolin and water；
Step 2: modified agronomic crop fibre powder, adhesive, modification infusorial earth, surface modified fibre element nanocrystal, modified kaolinite
Blender stirring is added after soil and water mixing, first stirs at low speed 30-60min, then high-speed stirred 30-60min, obtains mixed slurry A；
Step 3: mixture A being added in extruder and heats 30-60min, temperature is 60-80 DEG C, obtains mixed slurry B；
Step 4: intermixture B being squeezed out into plate modular system, compression moulding；
Step 5: the plate of step 4 compression moulding being put into dry kiln drying, temperature is 60-65 DEG C, time 8-10h, when containing
When water weight is less than 3.5%, become semi-finished product；
Step 6: semi-finished product polish flat after drying, and surface is smooth to get environment-friendly sheet.
Preferably, it is 600-800r/min that revolving speed is stirred at low speed described in step 2.
Preferably, high agitation revolving speed described in step 2 is 1200-1400r/min.
The invention has the following beneficial effects:
(1) modified agronomic crop fibre powder is used in the raw material of environment-friendly sheet of the present invention, a large amount of agricultural wastes is utilized, both
It reduces costs, and solves the problems, such as the processing of agricultural stalk, saved forest resourceies, protected environment；Furthermore to stalk into
Modified operation is gone, it is therefore an objective to allow its cellulosic material to be sufficiently precipitated, eliminate other impurities, enable stalk and other substances
Good cross-linking effect is generated, the tensile strength and fracture resistance of the plate of preparation are substantially increased.
(2) raw material of environment-friendly sheet of the present invention introduces Cellulose nanocrystal body structure, is conducive to improve plate mechanical property
Energy, chemical stability and processing fluidity；It is modified by benzene two (first) acylimino methyl-phosphoric acid dimethyl ester on its surface, it introduces
N, P and conjugated structure effectively increase the anti-flammability of decorative panel；On the one hand, be conducive to the dispersion of Cellulose nanocrystal body；It is another
Aspect is conducive to improve water-wetted surface, decorative panel water absorbing capacity is reduced, to effectively prevent its mildew.
(3) raw material of environment-friendly sheet of the present invention uses modification infusorial earth, and modification infusorial earth is mentioned to former diatomite
It is pure, it also include the organic impurities being much wrapped in diatom body surface face and gap in former diatomite other than containing diatom body,
These organic impurities oxygenolysis under conditions of high-temperature calcination removes, so that the purity of diatomite is promoted, modification infusorial earth energy
Enough preferably adjusting air humidities, avoid indoor environment mouldy, rotten；Modification infusorial earth can be adsorbed effectively and decompose harmful
Learn substance such as formaldehyde, benzene, dimethylbenzene, trichloro ethylene, ether-ether class, propylene cyanogen etc. and absorption pet body odor, smoking and life rubbish
Peculiar smell caused by rubbish etc. can effectively keep indoor cleaning；Non-conductor of the modification infusorial earth as heat, also has insulation
Good characteristic.
(4) modified kaolin is added in the raw material of environment-friendly sheet of the present invention, modified kaolin solves between each raw material
The poor problem of binding performance, to improve the mechanical strength of environment-friendly sheet.
Specific embodiment
Present invention will be further explained below with reference to specific examples.These embodiments are merely to illustrate the present invention and do not have to
In limiting the scope of the invention.
Embodiment 1
The heat-insulating and fire-proof environment-friendly sheet of the present embodiment, is made of the raw material of following parts by weight: modified 10 parts of agronomic crop fibre powder gathers
3 parts of urethane resin, 8 parts of modification infusorial earth, 10 parts of surface modified fibre element nanocrystal, 8 parts of modified kaolin and 18 parts of water.
The modification agronomic crop fibre powder of the present embodiment is by rice straw, broomcorn straw, wheat stalk according to weight ratio 4:
2:3 is added in pulverizer after drying and crushes, and takes out after adding the hydrogen peroxide dipping 40min that mass fraction is 5%, clear water rinses
It 3 times, is sent into drying box and dries, add the sodium hydrate aqueous solution that mass fraction is 7%, under the conditions of 60 DEG C, insulated and stirred
20min, filtering wash filter residue to neutrality with clear water, and then drying is made.
The modification infusorial earth of the present embodiment is that former diatomite, distilled water and dilute sulfuric acid are added according to weight ratio 15:10:1
It in reaction vessel, is put into drying box after sealing, 180min is reacted under conditions of 150 DEG C, is taken out after cooling and is put into blender
In, distilled water is added, setting speed of agitator is 80r/min, stirs 60min, then filters, and wash 3 times, is transferred to dryer
In, 60min is dried under the conditions of 100 DEG C, is transferred in calcining furnace, 80min is calcined, natural cooling is made after calcining.
The surface modified fibre element nanocrystal of the present embodiment is that benzene two (first) acylimino methyl-phosphoric acid dimethyl ester is molten
In high boiling solvent, the heating stirring at 85 DEG C is added nano cellulose crystal after it is completely dissolved, is stirred to react 6h,
Then crude product is obtained after solvent being removed with Rotary Evaporators, grind into powder is made.
The modified kaolin of the present embodiment is calcining 3h under being placed in kaolin in Muffle furnace under the conditions of 700 DEG C, and with
Furnace is cooling, and calcined product is taken to react 8h under the conditions of 80 DEG C of water bath with thermostatic control with active carbon and aluminum sulfate, will when reaction terminating
Mixed solution is centrifuged, washing, and the dry 10h at 100 DEG C ground 150 meshes and is made.
The preparation method of the present embodiment heat-insulating and fire-proof environment-friendly sheet, is made of following preparation step:
Step 1: based on raw material weight number, take the following raw material: modified agronomic crop fibre powder, polyurethane resin, modification infusorial earth,
Surface modified fibre element nanocrystal, modified kaolin and water；
Step 2: modified agronomic crop fibre powder, adhesive, modification infusorial earth, surface modified fibre element nanocrystal, modified kaolinite
Blender stirring is added after soil and water mixing, first with the 30min that stirs at low speed of 600r/min, then with the high-speed stirring of 1200r/min
30min is mixed, mixed slurry A is obtained；
Step 3: mixture A being added in extruder and heats 30min, temperature is 60 DEG C, obtains mixed slurry B；
Step 4: intermixture B being squeezed out into plate modular system, compression moulding；
Step 5: the plate of step 4 compression moulding being put into dry kiln drying, temperature is 60 DEG C, and time 8h works as wet weight
When less than 3.5%, become semi-finished product；
Step 6: semi-finished product polish flat after drying, and surface is smooth to get environment-friendly sheet.
Embodiment 2
The heat-insulating and fire-proof environment-friendly sheet of the present embodiment, is made of the raw material of following parts by weight: modified 12 parts of agronomic crop fibre powder, third
4 parts of olefin(e) acid resin, 9 parts of modification infusorial earth, 12 parts of surface modified fibre element nanocrystal, 9 parts of modified kaolin and 18 parts of water.
The modification agronomic crop fibre powder of the present embodiment is by rice straw, broomcorn straw, wheat stalk according to weight ratio 4:
2:3 is added in pulverizer after drying and crushes, and takes out after adding the hydrogen peroxide dipping 40min that mass fraction is 5%, clear water rinses
It 3 times, is sent into drying box and dries, add the sodium hydrate aqueous solution that mass fraction is 7%, under the conditions of 60 DEG C, insulated and stirred
25min, filtering wash filter residue to neutrality with clear water, and then drying is made.
The modification infusorial earth of the present embodiment is that former diatomite, distilled water and dilute sulfuric acid are added according to weight ratio 15:10:1
It in reaction vessel, is put into drying box after sealing, 190min is reacted under conditions of 155 DEG C, is taken out after cooling and is put into blender
In, distilled water is added, setting speed of agitator is 90r/min, stirs 70min, then filters, and wash 3 times, is transferred to dryer
In, 70min is dried under the conditions of 100 DEG C, is transferred in calcining furnace, 90min is calcined, natural cooling is made after calcining.
The surface modified fibre element nanocrystal of the present embodiment is that benzene two (first) acylimino methyl-phosphoric acid dimethyl ester is molten
In high boiling solvent, the heating stirring at 90 DEG C is added nano cellulose crystal after it is completely dissolved, is stirred to react 7h,
Then crude product is obtained after solvent being removed with Rotary Evaporators, grind into powder is made.
The modified kaolin of the present embodiment is calcining 3h under being placed in kaolin in Muffle furnace under the conditions of 750 DEG C, and with
Furnace is cooling, and calcined product is taken to react 10h under the conditions of 90 DEG C of water bath with thermostatic control with active carbon and aluminum sulfate, will when reaction terminating
Mixed solution is centrifuged, washing, and the dry 12h at 115 DEG C ground 180 meshes and is made.
The preparation method of the present embodiment heat-insulating and fire-proof environment-friendly sheet, is made of following preparation step:
Step 1: based on raw material weight number, take the following raw material: modified agronomic crop fibre powder, acrylic resin, modification infusorial earth,
Surface modified fibre element nanocrystal, modified kaolin and water；
Step 2: modified agronomic crop fibre powder, adhesive, modification infusorial earth, surface modified fibre element nanocrystal, modified kaolinite
Blender stirring is added after soil and water mixing, first with the 45min that stirs at low speed of 700r/min, then with the high-speed stirring of 1000r/min
45min is mixed, mixed slurry A is obtained；
Step 3: mixture A being added in extruder and heats 45min, temperature is 70 DEG C, obtains mixed slurry B；
Step 4: intermixture B being squeezed out into plate modular system, compression moulding；
Step 5: the plate of step 4 compression moulding being put into dry kiln drying, temperature is 62 DEG C, and time 9h works as wet weight
When less than 3.5%, become semi-finished product；
Step 6: semi-finished product polish flat after drying, and surface is smooth to get environment-friendly sheet.
Embodiment 3
The heat-insulating and fire-proof environment-friendly sheet of the present embodiment, is made of the raw material of following parts by weight: modified 15 parts of agronomic crop fibre powder, phenol
5 parts of urea formaldehyde, 10 parts of modification infusorial earth, 15 parts of surface modified fibre element nanocrystal, 10 parts of modified kaolin and 18 parts of water.
The modification agronomic crop fibre powder of the present embodiment is by rice straw, broomcorn straw, wheat stalk according to weight ratio 4:
2:3 is added in pulverizer after drying and crushes, and takes out after adding the hydrogen peroxide dipping 40min that mass fraction is 5%, clear water rinses
It 3 times, is sent into drying box and dries, add the sodium hydrate aqueous solution that mass fraction is 7%, under the conditions of 60 DEG C, insulated and stirred
30min, filtering wash filter residue to neutrality with clear water, and then drying is made.
The modification infusorial earth of the present embodiment is that former diatomite, distilled water and dilute sulfuric acid are added according to weight ratio 15:10:1
It in reaction vessel, is put into drying box after sealing, 200min is reacted under conditions of 160 DEG C, is taken out after cooling and is put into blender
In, distilled water is added, setting speed of agitator is 100r/min, stirs 80min, then filters, and wash 3 times, is transferred to drying
In machine, 80min is dried under the conditions of 100 DEG C, is transferred in calcining furnace, calcine 100min, natural cooling is made after calcining.
The surface modified fibre element nanocrystal of the present embodiment is that benzene two (first) acylimino methyl-phosphoric acid dimethyl ester is molten
In high boiling solvent, the heating stirring at 95 DEG C is added nano cellulose crystal after it is completely dissolved, is stirred to react 8h,
Then crude product is obtained after solvent being removed with Rotary Evaporators, grind into powder is made.
The modified kaolin of the present embodiment is calcining 3h under being placed in kaolin in Muffle furnace under the conditions of 800 DEG C, and with
Furnace is cooling, takes calcined product to react 12h under the conditions of 100 DEG C of water bath with thermostatic control with active carbon and aluminum sulfate, when reaction terminating
Mixed solution is centrifuged, is washed, the dry 13h at 130 DEG C ground 200 meshes and is made.
The preparation method of the present embodiment heat-insulating and fire-proof environment-friendly sheet, is made of following preparation step:
Step 1: based on raw material weight number, taking the following raw material: modified agronomic crop fibre powder, phenolic resin, modification infusorial earth, table
Face modified cellulose nanocrystal, modified kaolin and water；
Step 2: modified agronomic crop fibre powder, adhesive, modification infusorial earth, surface modified fibre element nanocrystal, modified kaolinite
Blender stirring is added after soil and water mixing, first with the 60min that stirs at low speed of 800r/min, then with the high-speed stirring of 1400r/min
60min is mixed, mixed slurry A is obtained；
Step 3: mixture A being added in extruder and heats 60min, temperature is 80 DEG C, obtains mixed slurry B；
Step 4: intermixture B being squeezed out into plate modular system, compression moulding；
Step 5: the plate of step 4 compression moulding being put into dry kiln drying, temperature is 65 DEG C, time 10h, when aqueous heavy
When amount is less than 3.5%, become semi-finished product；
Step 6: semi-finished product polish flat after drying, and surface is smooth to get environment-friendly sheet.
Control group is set, and control group uses a kind of thermal insulation separation for building of the patent disclosure of Publication No. CN108249949A
Soundboard material.The plate of embodiment 1, embodiment 2, embodiment 3 and control group is tested for the property: according to national standards
GB5454-85 measures oxygen index (OI) with HC-1 type oxygen index measurer；Thermal coefficient is tested using JTKD conductometer；Formaldehyde
Purifying rate is that the plate that side length is 1200mm is placed in the 10m for being passed through formaldehyde 1mg3Closed container in, tested with formaldehyde
Instrument test place front and back as a result, the formaldehyde amount of decomposition is measured than total formaldehyde.Compression strength, thermal coefficient and the first surveyed
Aldehyde purifying rate data are as shown in table 1.
Table 1
| Oxygen index (OI) | Thermal coefficient W/(mK) | Purifying formaldehyde rate | |
| Embodiment 1 | 59 | 0.071 | 70.1% |
| Embodiment 2 | 60 | 0.068 | 70.7% |
| Embodiment 3 | 62 | 0.065 | 71.3% |
| Control group | 42 | 0.137 | 46.2% |
As it can be seen from table 1 the oxygen index (OI) of embodiment 1, embodiment 2 and embodiment 3 higher than control group 40.5%, 42.9% and respectively
47.6%, illustrate that the flame retardant property of plate of the present invention has a distinct increment than the prior art.Embodiment 1, embodiment 2 and embodiment 3
Thermal coefficient is respectively 51.8%, 49.6% and the 47.4% of control group, illustrates that the heat preservation heart infarction of plate of the present invention has than the prior art
Larger promotion.The purifying formaldehyde rate of embodiment 1, embodiment 2 and embodiment 3 improves 23.9%, 24.5% and than control group respectively
25.1%, illustrate that plate of the present invention has a distinct increment compared with prior art to the absorption of indoor formaldehyde and decomposability.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (10)
1. a kind of heat-insulating and fire-proof environment-friendly sheet, which is characterized in that be made of the raw material of following parts by weight: modified agronomic crop fibre powder
10-15 parts, 3-5 parts of adhesive, 8-10 parts of modification infusorial earth, 10-15 parts of surface modified fibre element nanocrystal, modified kaolin
8-10 parts and water 15-20 parts.
2. a kind of heat-insulating and fire-proof environment-friendly sheet according to claim 1, which is characterized in that by the raw material group of following parts by weight
At: modified 12 parts of agronomic crop fibre powder, 9 parts of modification infusorial earth, 12 parts of surface modified fibre element nanocrystal, changes 4 parts of adhesive
Property 9 parts of kaolin and 18 parts of water.
3. a kind of heat-insulating and fire-proof environment-friendly sheet according to claim 1 or 2, it is characterised in that: the modified crops are fine
Dimension powder be after rice straw, broomcorn straw, wheat stalk are dried according to weight ratio 4:2:3 be added pulverizer in crush, then plus
It is taken out after entering the hydrogen peroxide dipping 40min that mass fraction is 5%, clear water rinses 3 times, is sent into drying box and dries, adds matter
The sodium hydrate aqueous solution that score is 7% is measured, under the conditions of 60 DEG C, insulated and stirred 20-30min, filtering washes filter residue with clear water
It washs to neutrality, then drying is made.
4. a kind of heat-insulating and fire-proof environment-friendly sheet according to claim 1 or 2, it is characterised in that: the binder is poly- ammonia
One of ester resin, acrylic resin or phenolic resin.
5. a kind of heat-insulating and fire-proof environment-friendly sheet according to claim 1 or 2, it is characterised in that: the modification infusorial earth is
Former diatomite, distilled water and dilute sulfuric acid are added in reaction vessel according to weight ratio 15:10:1, are put into drying box after sealing,
180-200min is reacted under conditions of 150-160 DEG C, takes out and is put into blender after cooling, and distilled water, setting stirring is added
Revolving speed is 80-100r/min, stirs 60-80min, then filters, and is washed 3 times, is transferred in dryer, in 100 DEG C of conditions
Lower drying 60-80min, is transferred in calcining furnace, calcines 80-100min, and natural cooling is made after calcining.
6. a kind of heat-insulating and fire-proof environment-friendly sheet according to claim 1 or 2, it is characterised in that: the surface modified fibre
Plain nanocrystal is that benzene two (first) acylimino methyl-phosphoric acid dimethyl ester is dissolved in high boiling solvent, is heated at 85-95 DEG C
Stirring, is added nano cellulose crystal after it is completely dissolved, is stirred to react 6-8h, then remove solvent with Rotary Evaporators
After obtain crude product, grind into powder is made.
7. a kind of heat-insulating and fire-proof environment-friendly sheet according to claim 1 or 2, it is characterised in that: the modified kaolin is
Calcine 3h under kaolin is placed in Muffle furnace under the conditions of 700-800 DEG C, and furnace cooling, take calcined product and active carbon and
Aluminum sulfate reacts 8-12h under the conditions of 80-100 DEG C of water bath with thermostatic control, and mixed solution is centrifuged when reaction terminating,
Washing, the dry 10-13h at 100-130 DEG C, ground 150-200 mesh and was made.
8. a kind of preparation method of heat-insulating and fire-proof environment-friendly sheet according to claim 1 or claim 2, which is characterized in that by following system
Standby step forms:
Step 1: based on raw material weight number, taking the following raw material: modified agronomic crop fibre powder, adhesive, modification infusorial earth, surface
Modified cellulose nanocrystal, modified kaolin and water；
Step 2: modified agronomic crop fibre powder, adhesive, modification infusorial earth, surface modified fibre element nanocrystal, modified kaolinite
Blender stirring is added after soil and water mixing, first stirs at low speed 30-60min, then high-speed stirred 30-60min, obtains mixed slurry A；
Step 3: mixture A being added in extruder and heats 30-60min, temperature is 60-80 DEG C, obtains mixed slurry B；
Step 4: intermixture B being squeezed out into plate modular system, compression moulding；
Step 5: the plate of step 4 compression moulding being put into dry kiln drying, temperature is 60-65 DEG C, time 8-10h, when containing
When water weight is less than 3.5%, become semi-finished product；
Step 6: semi-finished product polish flat after drying, and surface is smooth to get environment-friendly sheet.
9. a kind of preparation method of heat-insulating and fire-proof environment-friendly sheet according to claim 8, it is characterised in that: described in step 2
Stirring at low speed revolving speed is 600-800r/min.
10. a kind of preparation method of heat-insulating and fire-proof environment-friendly sheet according to claim 8, it is characterised in that: described in step 2
High-speed stirred revolving speed is 1200-1400r/min.
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| CN112123501A (en) * | 2020-09-18 | 2020-12-25 | 湖南竹海炭生源生物科技有限公司 | Preparation method of novel environment-friendly bamboo charcoal board for decoration |
| CN113045265A (en) * | 2021-03-23 | 2021-06-29 | 辽宁美诚装饰建材有限公司 | Moisture-proof, water-resistant, flame-retardant and environment-friendly multifunctional diatom board and preparation method thereof |
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