CN1792987A - Silicon magnesium fibre energy saving high strengthening composite building board of decoration and preparation process thereof - Google Patents
Silicon magnesium fibre energy saving high strengthening composite building board of decoration and preparation process thereof Download PDFInfo
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- CN1792987A CN1792987A CNA2005101009409A CN200510100940A CN1792987A CN 1792987 A CN1792987 A CN 1792987A CN A2005101009409 A CNA2005101009409 A CN A2005101009409A CN 200510100940 A CN200510100940 A CN 200510100940A CN 1792987 A CN1792987 A CN 1792987A
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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
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- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
A high-strength energy-saving building plate used for wall plate, floor plate and table plate is proportionally prepared from magnesium oxide, magnesium chloride, modifier, filler, water, reinforcing material, tributyl phosphate, and adhesive ''801'' through proportional mixing, moulding, curing and drying. Its advantages are light weight, high heat and sound insulation, and high resistance to fire, water and earthquake.
Description
Technical field the present invention relates to a kind of composite building board and manufacture method thereof, more particularly, relates to a kind of exempt to decorate silicon magnesium fibre energy saving high composite building board and manufacture method thereof.
Background technology in the prior art, existing various silicon magnesium base composite material, patent application CN1600730A, CN1541971A, CN1544224A disclose production method, the light wall board that a kind of light composite material, comprehensive silicon magnesium plant fibre meet wallboard respectively and have become walling unit and manufacture method thereof, because magnesian active ingredient is unqualified, cause the real reaction amount of magnesium oxide and magnesium chloride improper, all have the problems such as halogen, scum and distortion of returning; In addition, above-mentioned matrix material all has the defective of structure less stable, and the product physical mechanical mechanical property after the moulding reduces, and water resistance is not good enough yet; Especially: the body of wall product of making of above-mentioned materials need carry out secondary decoration or decoration; Panel structure adopts earlier and is placed on the middle cast product again of wallboard mould, easy fracture behind the prefabricated median septum; In addition, owing to there are the problems such as halogen, scum and distortion of returning, it is used because of being restricted can not reach widely and uses.
Summary of the invention the object of the present invention is to provide a kind of being particularly suitable for as exempting to decorate silicon magnesium fibre energy saving high composite building board and manufacture method thereof, and employed raw material mostly is utilization of waste material, has excellent results such as environmental protection and energy saving, high-strength light.
In order to achieve the above object, the present invention has adopted following technical scheme: develop a kind of silicon magnesium fibre energy saving high composite building board of exempting to decorate, mixture for multiple components, wherein the solid composition is micro mist or particulate, the composition of composite building board and the parts by weight of content are: 100 parts in magnesium oxide, 30～50 parts in magnesium chloride, 30～60 parts of properties-correcting agent, 20～50 parts of packing materials, all the other are water, described magnesium oxide is that to contain the activated magnesia weight percentage be 50%～70% magnesium oxide, described properties-correcting agent is phosphoric acid, silicoorganic compound, the weight ratio of vinylformic acid first/butyl ester and mica powder is 0.05～1.0: 1～5: 1～5: 2～12 mixture, described packing material is the mixture of silicon magnesium powder and vegetable fibre two class arbitrary proportions, and the consumption of water is each solid composition fully to be run through rise and stirred by stirrer the amount that is soup compound.Wherein, silicon magnesium powder is the mixture of any one or a few arbitrary proportion of flyash, stone flour, coal gangue, slag, sand or its analogue, and vegetable fibre is the straw of plant, and plant comprises farm crop and shrub, trees etc.
Implement in the process of the present invention concrete, magnesium oxide can be used for the raw material of potting porcelain, magnesia brick, crucible etc., be used for having effects such as adiabatic and polishing when of the present invention, described activated magnesia is meant the magnesium oxide that can participate in the effective ingredient that material of the present invention reacts to each other directly, W-response is thermopositive reaction, the effective ingredient amount of activated magnesia is quite important, and activated magnesia of the present invention is meant at normal temperatures i.e. 10 ℃-35 ℃ magnesium oxide that hydration reaction takes place.Because contain the MgO composition of burning MgO and underburnt in magnesium oxychloride, the former shows as and MgCl
2Hydration reaction react slowly or not, the latter shows as previous and water reaction and generation Mg (OH)
2, cause MgCl
2Reaction incomplete.Boil with hydrochloric acid and heat can both be dissolved analyzing but as the magnesium oxide of burning and underburnt, can both be magnesian content by the EDTA titrimetry, it is active content of magnesia that MgO content in Here it is the magnesia powder is not equal to, as the MgO that has just dispatched from the factory is the light-burning magnesium powder of 80%-85%, the content of its activated magnesia mostly is 65 ± 2%, if must be to cause MgCl with the MgO content in the manufacturer's standard light burnt powder as the mol basis of proportioning
2The consumption surplus; Essential definite its active quantities when selective oxidation magnesium, its measuring method and calculation formula: adopt the hydration method:
, active MgO %=(W
1-W)/and 0.45 * W, in the formula: W
1Sample is heavy after the-aquation, and sample is heavy before the W-aquation, the 0.45-reduction factor; Magnesium chloride is a magnesium chloride, and heating then dehydration simultaneously becomes magnesium oxide with hydrogenchloride, magnesium chloride solution with become magnesium cement after magnesium oxide mixes.Properties-correcting agent of the present invention is described as follows: phosphoric acid can absorb airborne moisture, to prevent product return halogen and scum has better effect, its add-on is lower, because the acidity of phosphoric acid also has the effect of the alkalescence of other alkali components that neutralizes between strong acid and weak acid; Vinylformic acid first/butyl ester is the most common acrylate, can be used as coating, tackiness agent or tackiness agent, is used for improving the intensity of the degree of compactness of product structure with main raising product; Mica powder has excellent dielectric properties and resistance toheat, can be used to form material field shape crystal, can be used as insulating material, heat-resisting decorations layer material and light building material etc., thereby importance and its good technical effect of adding mica powder in the properties-correcting agent are well imagined; Silicon magnesium powder of the present invention comprises flyash, stone flour, coal gangue, slag, sand or its analogue, all contain the refuse waste material or the non-refuse waste material of silicon magnesium to described analogue as the ore that contains the silicon magnesium salts, ceramics powder, wilkinite etc., this is an inexhaustible source, and this resource China is first of the world; Vegetable fibre mainly is the straw of plant, plant comprises farm crop and xylophyta etc., their fiber can be as the raw material of making product of the present invention, the straw of the wheat in the cereal grass, rice and millet for example, cotton bar leaf, the bar branches of high Beam and corn etc., limb of trees and sawdust etc. all have been raw materials.In concrete enforcement, use aforesaid silicon magnesium powder and vegetable fibre two roughly the same better simultaneously with effect, two roughly the same the time spent can be the mixture of arbitrary proportion.
Properties-correcting agent silicoorganic compound of the present invention can be the mixtures of any one or its several arbitrary proportions of silane, halogenated silanes, silanol or silicon ether.Silicoorganic compound and organic carbon compound are different, have only singly-bound between silicon-Siliciumatom in its molecule, constitute with a pair of shared electron between two atoms, do not have two keys and triple bond, have a lot of special functions, for example poly(silicon aether) has good thermotolerance, water tolerance and electrical insulating property.
Mica powder in the properties-correcting agent of the present invention is sericite (Sericite) powder preferably, sericite is the subspecies that white mica is compact shape crystallite aggregate, normal band canescence or yellow-green colour, has satin luster, use the effectively compactness of improved products color, gloss and product physical mechanics structure of sericite, than other mica powder better effects if.
In the embodiment of this invention, normally used silicoorganic compound have: silicomethane, tetramethyl-silicomethane, dimethyldichlorosilane, trimethyl silicane methyl alcohol and hexamethyl silicon ether etc., and these products are common to be easy to get, and can use separately, the use of also can arranging in pairs or groups arbitrarily all can be played effect preferably.
In implementing process of the present invention, the composition of matrix material and the parts by weight of content are preferably: 100 parts in magnesium oxide, 35～40 parts in magnesium chloride, 35～50 parts of properties-correcting agent, 30～40 parts of packing materials.Undoubtedly: magnesium oxide is that to contain the activated magnesia weight percentage be 50%～70% magnesium oxide, i.e. six water magnesium oxide, wherein the activated magnesia weight percentage should be to remove crystal water to calculate, properties-correcting agent is that the weight ratio of phosphoric acid, silicoorganic compound, vinylformic acid first/butyl ester and mica powder is 0.05～1.0: 1～5: 1～5: 2～12 mixture, packing material are silicon magnesium powder or vegetable fibre.The properties-correcting agent consumption is 35～50 parts, and the packing material consumption is 30～40 parts, and in this scope, the comprehensive physical and mechanical properties of product is preferable.
In implementing process of the present invention, can in matrix material, add strongthener, should be as the auxiliary composition of strongthener, content is 0.3～3 part/100 parts magnesium oxide, strongthener is the mixture of one or more arbitrary proportions of staple fibre of bamboo fibers, glass fibre or man-made fiber.The length of various fibers should be specific in 1～20mm, and man-made fiber can be nylon fibre, polyster fibre etc., and kind is unimportant, all is fine as long as intensity height and price are low.Add above-mentioned various fiber, can effectively improve intensity, especially resistance to impact shock, breaking tenacity and the tensile strength etc. of product.There is no need to add more strongthener,, and exceeded the several times of country-level standard because the strength of wall body of manufacturing of the present invention not only can reach country-level standard.Because the material that meets of the present invention has extensive use, adds the application that a certain amount of strongthener can satisfy special requirement.
The present invention can also add the mixture of any one or the two arbitrary proportion of auxiliary composition tributyl phosphate, 801 glue, and its content is 0.1～0.6 part/100 parts magnesium oxide.Tributyl phosphate is commonly used for tackiness agent, coating, defoamer and heat exchange medium, 801 glue then are tackiness agent and the coating of using always, add the two or wherein a kind of, can improve the structure density of the product of manufacturing with matrix material of the present invention and the intensity of corresponding raising product, because tributyl phosphate can be commonly used for defoamer and heat exchange medium, therefore, in making composite material, can promote that also temperature of reaction system is even and eliminate foaming.
In the embodiment of this invention, usually the silicoorganic compound that adopt have: silicomethane, tetramethyl-silicomethane, dimethyldichlorosilane, trimethyl silicane methyl alcohol and hexamethyl silicon ether etc., these compounds are common to be easy to get, and can use the use of also can arranging in pairs or groups arbitrarily separately.
The manufacture method of composite building board of the present invention: comprise the steps: that (1) get the raw materials ready by weight; solid material is crushed to particulate or micro mist more than granularity 100 orders; (2) place magnesium chloride the mixing tank of band stirrer and add the water stirring and dissolving again; (3) are with magnesium oxide then; properties-correcting agent and packing material place the band stirrer mixing tank that magnesium chloride brine is housed; normal temperature stirred 10 minutes down at least; stir; each composition is fully run through and moisten and rise to being soup compound; (4) select multifunctional plate former mould then; check and correction size and horizontal positioned; evenly apply releasing agent in the mould; smooth again laying layer of plastic film; for the first time get half soup compound and tamp mold bottom; pour into the separator strip base plate of sheet material; (5) are propped up on the good separator strip base plate of cast and are put on the inner formword of former mould again; pour for the second time second half soup compound into; tamp on the mould inner mould plate of having good positioning; floating surface layer is also laid plastics film; matched moulds; then (6) normal temperature begins maintenance, opens the louvre of former both mold ends during maintenance, keeps normal temperature maintenance at least 2 hours; get dry sheet material, last (7) demoulding.Described multi-functional former mould is an application number: the technology of the patent application " a kind of shaped device of silicon magnesium plant fibre composite hollow wallboard " of 200510034962.X (applying date is on June 2nd, 2005); Described mixing tank can be still or the jar that band stirs, and also can be pond or bucket.
Implement in the process of the present invention concrete: the purpose that adds water is fully to run through and moisten rise solid micro-powder or particulate, make soup compound by stirring, amount of water there is no strict demand, as long as be soup compound, being convenient to casting gets final product, amount of water can be because of the composition of matrix material, the addition of each composition, factors vary such as the water capacity of the water-retaining capacity of each composition and their itself and changing, in general, by proportioning raw materials of the present invention, its amount of water empirical Calculation, disposable amount of water is that 45-65 part/100 part magnesium oxide (weight) are feasible when the dissolving magnesium chloride, in case of necessity, add in the time of also can regulating slurry concentration in the back, its effect is the same.
In the manufacturing processed of product of the present invention, when adding strongthener, if use the staple fibre of bamboo fibers, glass fibre or the man-made fiber of 1～20mm length, add in process (3) with magnesium oxide, properties-correcting agent and packing material, that is to say, they are placed in the reaction system, mix through stirrer, make the intensity of whole composite building board even.
In the manufacturing processed of product of the present invention, when adding when strongthener, if use cloth, after process (4) for the first time gets half soup compound to tamp mold bottom and/or process (5) smooth laying cloth when pouring second half soup compound into for the second time, that is to say, cloth is positioned at or approaches the middle part of pouring piece, has effect preferably to improving its bulk strength.
The application of matrix material of the present invention, the building inside and outside wall plate and the flooring thermal baffle that are widely used in manufacturing are to exempt from secondary decorating wall and flooring thermal baffle, because the intensity height of matrix material, pouring piece any surface finish such as jade can be used as simultaneously and make kitchen range, sanitary ware, household utensils and artwork etc.In other words, every desired strength height, bright and clean as beautiful article all can use matrix material of the present invention as pottery on the surface.
Compared with prior art, the present invention has following tangible advantage: 1, technique effect is good, intensity is high: every environmental protection index, the physical and mechanical property index of the body of wall of making of this magnesium plant fibre composits material are higher than latest national standards JG/T169-2005, and concrete data see Table 1:
Table 1 magnesium plant fibre composits material wallboard physical and mechanical property table
| Test item | Area density Kg/m 2 | Bending resistance load KN | The shock resistance degree | Sound insulation DB | Fire endurance H | Single-point is hung N | The water tolerance sky | Surface halide accumulation resistance | Water-intake rate % | Drying shrinkage value mm/m 2 |
| Up-to-date GB | ≤85 | 〉=1.5 times of plates are heavy | Sandbag dashes 5 times | ≥35 | 1 grade 60 minutes | 1000 hang 24n | Steep 7 days no changes | The no globule does not have and gets damp | ≤10 | ≤0.6 |
| Silicon-magnesium wall slabstone | ≤45 | ≥6.3 | ≥16 | ≥42 | ≥120 | ≥1300 | Steep 7 days no changes | The no globule does not have and gets damp | ≤10 | ≤0.6 |
2, save energy: whole process of production has only the stirrer of unlatching need consume small amount of electrical energy, there are not other any energy consumptions, with the combined wall board is example: through measuring and calculating, use 10,000 square metres of combined wall boards, can increase by 100 square metres of building usable floor areas, save 2 tons in coal, save electricity 1000 degree, save one mu in soil; 3, save building cost: can save steel, cement and sandstone, be the unit measuring and calculating with every square metre: multi-storey building is saved 100 yuan, and the small sized multiple story building thing is saved 200 yuan, and high-rise is saved 300 yuan; 4, the production raw material is utilization of waste material, has environmental protection, lightweight, sound insulation, insulation, back-fire relief, waterproof, shockproof, anti-aging, can change the disadvantage of the fertile beam of existing building, fat post, deep foundation; 5, technology is simple, and the raw material scientific allocation is reasonable, and various products do not have problems such as the halogen of returning, scum, buckling deformation and crackle; 6, applied range: can be widely used in and make building inside and outside wall plate and flooring thermal baffle, kitchen range, sanitary ware, household utensils and artwork, thereby this matrix material is a kind of material with all multi-usages.
It below the description of drawings description of drawings of the present invention
Fig. 1 is multi-functional wallboard former mould.
Among the figure, the 1st, mould housing, the 2nd, adjustable plate, the 3rd, patrix, the 4th, counterdie, the 5th, adjustable plate pilot hole, the 6th, louvre.
With reference to Fig. 1, the board dimension of cast can be regulated by adjustable plate 2, adjustable plate 2 by adjustable plate pilot hole 5 by the screw location, louvre 6 be positioned at housing 1 vertical two ends near interior location.
By specific embodiment the present invention is carried out more detailed description below the embodiment:
Embodiment 1 manufactured size is 2.6M * 0.6M * 0.1M (long * wide * thick) (as follows) diplopore hollow wall plate
(1) is equipped with various raw materials by following parts by weight: contain the activated magnesia weight percentage and be 100 parts in 60% magnesium oxide, 50 parts in magnesium chloride, 3.5 parts of phosphoric acid, 4.5 parts of dimethyldichlorosilane(DMCS)s, 15 parts of butyl acrylates, 7 parts of white mica powders, 20 parts in flyash, 5 parts of iron ore slags, 5 parts of sawdust ashes, 0.1 part of tributyl phosphate, wherein: add up to 30 parts of properties-correcting agent, the weight ratio of four kinds of compositions is 1: 1.29: 4.29: 2, adding up to packing material is 42 parts, magnesium oxide: magnesium chloride: properties-correcting agent: packing material=100: 50: 30: 20, above-mentioned solid material sieves respectively after crushed, gets 150 mesh sieve blankings;
(2) magnesium chloride being placed band stirrer rotating speed is 50 rev/mins mixing tank, adds 50 parts in water under the normal temperature and stirs and all dissolved to magnesium chloride in 3 minutes;
(3) the mixture adding of process (1) is equipped with in the mixing tank of magnesium chloride brine, turn on agitator, meter stirred 10 minutes, got the moderate soup compound of denseness;
(4) select multifunctional plate former mould, proofreaded size and horizontal positioned, evenly applying no silicon in the mould does not have oil-based release agent, smooth again laying one deck PVC plastics film, then
(5) get about 1/2 soup compound and tamp mold bottom, smooth laying layer of glass cloth pours into the separator strip base plate of sheet material;
(6) prop up the inner formword of putting the former mould on the good separator strip base plate of cast, smooth laying one deck nylon fiber cloth is poured second half soup compound into for the second time, tamp on the mould inner mould plate of having good positioning, and floating surface layer, and lay PVC plastics film, matched moulds;
(7) be 20 ℃ of beginning maintenances in room temperature, open the louvre of former both mold ends during maintenance, keep normal temperature (20～30 ℃) maintenance 6 hours, finally demould.
After tested: area density (Kg/m
2): 40, bending resistance load (KN): 8.9, shock resistance degree (inferior): sandbag dashes 20 times, sound insulation DB:56, fire endurance H:1 level 180 minutes, single-point is hung: hang 24n, 1700, N water tolerance: steep 10 days no changes, surface halide accumulation resistance: the no globule does not have and gets damp, water-intake rate (%): 3, drying shrinkage value (mm/m
2): 0.2.
Embodiment 2 manufactured sizes are 3.0M * 0.6M * 0.12M diplopore hollow wall plate
(1) is equipped with various raw materials by following parts by weight: contain the activated magnesia weight percentage and be 100 parts in 69% magnesium oxide, 40 parts in magnesium chloride, 3.2 parts of phosphoric acid, 5 parts of trimethyl silicane methyl alcohol, 5 parts in hexamethyl silicon ether, 10 parts of methyl acrylates, 20 parts of sericites in powder, 30 parts of stone quarry stone flours, 12 parts of sorghum rods, 1.5 parts in 801 glue, wherein: add up to 40.2 parts of properties-correcting agent, the weight ratio of four kinds of compositions is 0.1: 5: 5: 10, adding up to packing material is 42 parts, magnesium oxide: magnesium chloride: properties-correcting agent: packing material=100: 40: 40.2: 42, and above-mentioned solid material sieves respectively after crushed, get 120 mesh sieve blankings, and add 3 parts of the useless nylon wire tougheners that length is 10mm;
(2) magnesium chloride being placed band stirrer rotating speed is 50 rev/mins mixing tank, adds 45 parts in water under the normal temperature and stirs and all dissolved to magnesium chloride in 4 minutes;
(3) the mixture adding of process (1) is equipped with in the mixing tank of magnesium chloride brine, turn on agitator, meter stirred 12 minutes, added 20 parts in water during the stirring, got evenly moderate soup compound of denseness;
(4) select multifunctional plate former mould, proofreaded size and horizontal positioned, evenly applying no silicon in the mould does not have oil-based release agent, smooth again laying one deck PVC plastics film, then
(5) get about 1/2 soup compound and tamp mold bottom, smooth laying layer of glass cloth pours into the separator strip base plate of sheet material;
(6) on the good separator strip base plate of cast, prop up the inner formword of putting the former mould, pour second half soup compound into for the second time, tamp on the mould inner mould plate of having good positioning, floating surface layer, and lay PVC plastics film, matched moulds;
(7) be 18 ℃ of beginning maintenances in room temperature, open the louvre of former both mold ends during maintenance, keep normal temperature (18～30 ℃) maintenance 3 hours, finally demould.
After tested: area density (Kg/m
2): 46, bending resistance load (KN): 8.3, shock resistance degree (inferior): sandbag dashes 18 times, sound insulation DB:52, fire endurance H:1 level 170 minutes, single-point is hung: hang 24n, 1600, N water tolerance: steep 10 days no changes, surface halide accumulation resistance: the no globule does not have and gets damp, water-intake rate (%): 4, drying shrinkage value (mm/m
2): 0.3.
Embodiment 3 manufactured sizes are the three hole flooring thermal baffles of 2.5M * 0.6M * 0.06M
(1) is equipped with various raw materials by following parts by weight: contain the activated magnesia weight percentage and be 100 parts in 50% magnesium oxide, 30 parts in magnesium chloride, phosphatase 11 .4 part, 1.5 parts of silicomethanes, 12 parts of tetramethylsilanes, 2.7 parts of methyl acrylates, 32 parts of white mica powders, 30 parts of quartz sands, 20 parts of straw, wherein: add up to 49.6 parts of properties-correcting agent, the weight ratio of four kinds of compositions is 0.5: 5: 1: 12, and adding up to packing material is 50 parts, magnesium oxide: magnesium chloride: properties-correcting agent: packing material=100: 30: 49.6: 50, above-mentioned solid material sieves respectively after crushed, gets 150 mesh sieve blankings;
(2) magnesium chloride being placed band stirrer rotating speed is 50 rev/mins mixing tank, adds 60 parts in water under the normal temperature and stirs and all dissolved to magnesium chloride in 4 minutes;
(3) the mixture adding of process (1) is equipped with in the mixing tank of magnesium chloride brine, turn on agitator, meter stirred 12 minutes, got evenly moderate soup compound of denseness;
(4) select multifunctional plate former mould, proofreaded size and horizontal positioned, evenly applying no silicon in the mould does not have oil-based release agent, smooth again laying one deck PVC plastics film, then
(5) get about 1/2 soup compound and tamp mold bottom, pour into the separator strip base plate of sheet material;
(6) on the good separator strip base plate of cast, prop up the inner formword of putting the former mould, pour second half soup compound into for the second time, tamp on the mould inner mould plate of having good positioning, floating surface layer, and lay PVC plastics film, matched moulds;
(7) be 17 ℃ of beginning maintenances in room temperature, open the louvre of former both mold ends during maintenance, keep normal temperature (17～30 ℃) maintenance 7 hours, finally demould.
After tested: area density (Kg/m
2): 36, bending resistance load (KN): 9.1, shock resistance degree (inferior): sandbag dashes 21 times, sound insulation DB:56, fire endurance H:1 level 180 minutes, single-point is hung: hang 24n, 1540, N water tolerance: steep 10 days no changes, surface halide accumulation resistance: the no globule does not have and gets damp, water-intake rate (%): 2, drying shrinkage value (mm/m
2): 0.2.
Embodiment 4 manufactured sizes are 2.6M * 0.6M * 0.15M three hole hollow exterior wall plates
(1) is equipped with various raw materials by following parts by weight: contain the activated magnesia weight percentage and be 100 parts in 58% magnesium oxide, 40 parts in magnesium chloride, 0.2 part of phosphoric acid, 4.2 parts in hexamethyl silicon ether, 21 parts of butyl acrylates, 34 parts of sericites in powder, 20 parts of colliery slags, 10 parts of corn stalks, wherein: add up to 59.2 parts of properties-correcting agent, the weight ratio of four kinds of compositions is 0.05: 1.05: 5.25: 8.5, adding up to packing material is 3 parts, magnesium oxide: magnesium chloride: properties-correcting agent: packing material=100: 40: 59.2: 30, and above-mentioned solid material sieves respectively after crushed, get 150 mesh sieve blankings, and add 0.3 part of the useless nylon wire toughener that length is 10mm;
(2) magnesium chloride being placed band stirrer rotating speed is 50 mixing tanks that change part, adds 55 parts in water under the normal temperature and stirs and all dissolved to magnesium chloride in 2 minutes;
(3) the mixture adding of process (1) is equipped with in the mixing tank of magnesium chloride brine, turn on agitator, meter stirred 12 minutes, got evenly moderate soup compound of denseness;
(4) select multifunctional plate former mould, proofreaded size and horizontal positioned, evenly applying no silicon in the mould does not have oil-based release agent, smooth again laying one deck PVC plastics film;
(5) get about 1/2 soup compound and tamp mold bottom, pour into the separator strip base plate of sheet material;
(6) on the good separator strip base plate of cast, prop up the inner formword of putting the former mould, pour second half soup compound into for the second time, tamp on the mould inner mould plate of having good positioning, floating surface layer, and lay PVC plastics film, matched moulds;
(7) be 24 ℃ of beginning maintenances in room temperature, open the louvre of former both mold ends during maintenance, keep normal temperature (24～30 ℃) maintenance 5 hours, finally demould.
After tested: area density (Kg/m
2): 66, bending resistance load (KN): 7.7, shock resistance degree (inferior): sandbag dashes 17 times, sound insulation DB:50, fire endurance H:1 level 145 minutes, single-point is hung: hang 24n, 1600, N water tolerance: steep 10 days no changes, surface halide accumulation resistance: the no globule does not have and gets damp, water-intake rate (%): 3, drying shrinkage value (mm/m
2): 0.3.
Claims (10)
1, a kind ofly exempt to decorate the silicon magnesium fibre energy saving high composite building board, be the mixture of multiple components, wherein the solid composition is micro mist or particulate, it is characterized in that: the parts by weight of its composition and content are:
100 parts in magnesium oxide
30～50 parts in magnesium chloride
30～60 parts of properties-correcting agent
20～50 parts of packing materials
All the other are water,
Described magnesium oxide is that to contain the activated magnesia weight percentage be 50%～70% magnesium oxide, described properties-correcting agent is phosphoric acid, silicoorganic compound, the weight ratio of vinylformic acid first/butyl ester and mica powder is 0.05～1.0: 1～5: 1～5: 2～12 mixture, described packing material is the mixture of silicon magnesium powder and vegetable fibre two class arbitrary proportions, wherein, silicon magnesium powder is a flyash, stone flour, coal gangue, slag, the mixture of any one or a few arbitrary proportion of sand or its analogue, vegetable fibre is the straw of plant, and the consumption of water is each solid composition fully to be run through rise and stir through stirrer the amount that is soup compound.
2, composite building board according to claim 1 is characterized in that: the silicoorganic compound in the properties-correcting agent are mixtures of any one or a few arbitrary proportion of silane, halogenated silanes, silanol or silicon ether.
3, composite building board according to claim 1 is characterized in that: the mica powder in the properties-correcting agent is a sericite in powder.
4, composite building board according to claim 1 is characterized in that: the composition of matrix material and the parts by weight of content are:
100 parts in magnesium oxide
35～40 parts in magnesium chloride
35～50 parts of properties-correcting agent
30～40 parts of packing materials
All the other are water.
5, matrix material according to claim 1, it is characterized in that: contain auxiliary composition as strongthener, its content is 0.3～3 part/100 parts magnesium oxide, and strongthener is the mixture of one or more arbitrary proportions of staple fibre of bamboo fibers, glass fibre or man-made fiber or their cloth.
6, matrix material according to claim 1 is characterized in that: contain the mixture of any one or the two arbitrary proportion of auxiliary composition tributyl phosphate, 801 glue, its content is 0.1～1.6 part/100 parts magnesium oxide.
7, composite building board according to claim 2 is characterized in that: the silicoorganic compound in the properties-correcting agent are silicomethane, tetramethylsilane, dimethyldichlorosilane(DMCS), trimethyl silicane methyl alcohol or hexamethyl silicon ether.
8, the manufacture method of the described composite building board of claim 1: it is characterized in that: comprise the steps:
(1) gets the raw materials ready by weight, solid material is crushed to particulate or micro mist more than granularity 100 orders, again
(2) magnesium chloride is placed the band stirrer mixing tank and add the water stirring and dissolving, then
(3) magnesium oxide, properties-correcting agent and packing material are placed the band stirrer mixing tank that magnesium chloride brine is housed, normal temperature stirred 10 minutes down at least, stirred, and each composition is fully run through and moisten and rise to being soup compound, then
(4) select multifunctional plate former mould, check and correction size and horizontal positioned evenly apply releasing agent in the mould, and smooth again laying layer of plastic film is got half soup compound for the first time and tamped mold bottom, pours into the separator strip base plate of sheet material, again
(5) put on the inner formword of former mould on the good separator strip base plate of cast, pour second half soup compound into for the second time, tamp on the mould inner mould plate of having good positioning, floating surface layer is also laid plastics film, matched moulds, then
(6) normal temperature begins maintenance, opens the louvre of former both mold ends during maintenance, keeps normal temperature maintenance at least 2 hours, gets dry sheet material, and is last
(7) demoulding.
9, manufacture method according to claim 8 is characterized in that: when adding strongthener, use the staple fibre of bamboo fibers, glass fibre or the man-made fiber of 1～20mm length, add in process (3) with magnesium oxide, properties-correcting agent and packing material.
10, manufacture method according to claim 8, it is characterized in that: add when strongthener, use cloth, after process (4) gets half soup compound to tamp mold bottom for the first time and/or process (5) smooth laying cloth when pouring second half soup compound into for the second time.
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| CNB2005101009409A CN100358829C (en) | 2005-11-09 | 2005-11-09 | Silicon magnesium fibre energy saving high strengthening composite building board of decoration and preparation process thereof |
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| CNB2005101009409A CN100358829C (en) | 2005-11-09 | 2005-11-09 | Silicon magnesium fibre energy saving high strengthening composite building board of decoration and preparation process thereof |
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