CN101417871B - EPS plate and preparation method thereof - Google Patents
EPS plate and preparation method thereof Download PDFInfo
- Publication number
- CN101417871B CN101417871B CN2008101614700A CN200810161470A CN101417871B CN 101417871 B CN101417871 B CN 101417871B CN 2008101614700 A CN2008101614700 A CN 2008101614700A CN 200810161470 A CN200810161470 A CN 200810161470A CN 101417871 B CN101417871 B CN 101417871B
- Authority
- CN
- China
- Prior art keywords
- board
- adhesive
- benzene
- benzene adhesive
- cement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000002360 preparation method Methods 0.000 title claims description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 103
- 230000001070 adhesive effect Effects 0.000 claims abstract description 103
- 239000004568 cement Substances 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000000843 powder Substances 0.000 claims abstract description 44
- 229920001971 elastomer Polymers 0.000 claims abstract description 40
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 314
- 239000003110 molding sand Substances 0.000 claims description 52
- 230000008719 thickening Effects 0.000 claims description 29
- 229920002522 Wood fibre Polymers 0.000 claims description 26
- -1 polyethylene Polymers 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 17
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- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 7
- 229910052791 calcium Inorganic materials 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 37
- 238000000034 method Methods 0.000 abstract description 16
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- 230000000052 comparative effect Effects 0.000 description 4
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
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- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 description 1
- XUHVCHNJCBBXMP-UHFFFAOYSA-M sodium;10-[(2-hydroxybenzoyl)amino]decanoate Chemical compound [Na+].OC1=CC=CC=C1C(=O)NCCCCCCCCCC([O-])=O XUHVCHNJCBBXMP-UHFFFAOYSA-M 0.000 description 1
- RROSXLCQOOGZBR-UHFFFAOYSA-N sodium;isothiocyanate Chemical compound [Na+].[N-]=C=S RROSXLCQOOGZBR-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- FQFILJKFZCVHNH-UHFFFAOYSA-N tert-butyl n-[3-[(5-bromo-2-chloropyrimidin-4-yl)amino]propyl]carbamate Chemical compound CC(C)(C)OC(=O)NCCCNC1=NC(Cl)=NC=C1Br FQFILJKFZCVHNH-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- 229960004418 trolamine Drugs 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a polystyrene board adhesive comprising components with the following weight ratios: 1 to 5 portions of rubber powders, 0.1 to 0.8 portion of thickeners, 25 to 45 portions of cements, 0.1 to 1 portion of reinforcing fibers and 50 to 70 portions of wasted molding sands. As the components of the wasted molding sands are mainly waste materials which is formed after molding sands including quartz sands, caking agents and hardeners are poured at high temperature, mud content is nearly zero and the surface of the quartz sands is a polyhedron each face of which is rugged, the rugged faces are suitable for increasing the contact area of quartz sands and cements, and the bond strength can be increased during the hardening process. As the polystyrene board adhesive uses cheap wasted molding sands as main materials, the cost of polystyrene board adhesives is effectively reduced and the recycling problem of wasted molding sands is also solved.
Description
Technical field
The present invention relates to material of construction, be specifically related to a kind of benzene adhesive for board and preparation method thereof.
Background technology
Be accompanied by fast development of national economy, energy shortage and environmental pollution problems become increasingly conspicuous, and the green economy of development energy-conserving and environment-protective is emphasis of various countries' Economic development, therefore, also are the important component parts of green economy to the recycling of industrial waste product.In foundry enterprise, useless molding sand is huge as the major industry waste product output of this class enterprise, and its handling problem is the insoluble always problem of business and government always.In the prior art, the treatment process of useless molding sand is generally landfill or directly discharging, but owing to contain impurity such as non-ferrous metal in the useless molding sand, it is handled and discharge process can cause severe contamination to environment.
In order to solve the second stage employ of useless molding sand, people propose to adopt chemical process to reclaim useless molding sand, but in chemically treated process, the application of chemical reagent also can cause secondary pollution to environment, and chemical treating process is costly, cost is too high, is difficult to be applied in practice.
In building field, adopting energy-efficient material of construction is the necessary trend of building industry development.The benzene plate is an abbreviation of sending out the property polystyrol plastic foam plate, and it is to be base-material with the polystyrene resin, adds subsidiary material such as the whipping agent heating of doses and the hard polystyrene foam plastic heat-insulating board with fine closed pore structure that makes.Because the benzene plate has superior thermal and insulating performance, favorable waterproof property, Wind-Pressure Resistance and shock resistance, can solve the be full of cracks and the leakage problem of body of wall effectively, the application of extensively having been sent out as material of construction.When using the benzene plate, after building body is finished, utilize benzene adhesive for board that the benzene plate is pasted on the building body.
In the prior art, the main raw material of preparation benzene adhesive for board is river sand or river sand, adds supplementary additive in addition, because river sand or river sand price are higher, has increased enterprise cost.Also the someone has adopted other feedstock production benzene adhesive for board, for example Chinese invention patent CN1115368C discloses a kind of benzene adhesive for board and preparation method thereof, the benzene adhesive for board that this method provides comprises pitch 4～6 by ratio of weight and the number of copies, ACRYLIC EMULSION 4～6, polyvinyl acetate emulsion 18～23, casting fine sand 22～28, No. 425 cement 39～52, sticking power improving agent 0.4～0.6, mould inhibitor makes 0.4～0.5, casting wherein is a main component with fine sand and No. 425 cement, other is a supplementary additive, though the benzene adhesive for board that this method is made has very high cohesive strength, but use fine sand as raw material than river sand or the taller casting of river sand owing to adopted price, not only make enterprise's manufacturing cost significantly increase, and wasted limited resources, be unfavorable for using in practice.
The inventor finds, because useless molding sand has special structure, if add a part of supplementary additive in addition then can prepare the higher benzene adhesive for board of performance as main body material with useless molding sand, and effectively reduces the cost of benzene adhesive for board.
Summary of the invention
The technical problem that the present invention solves is, a kind of high-performance, benzene adhesive for board and preparation method thereof cheaply are provided.
In order to solve above technical problem, the invention provides a kind of benzene adhesive for board, comprise following components by weight proportion:
Rubber powder: 1～5 part;
Thickening material: 0.1～0.8 part;
Cement: 25～45 parts;
Fortifying fibre: 0.1～1 part;
Useless molding sand: 50～70 parts.
Preferably, described benzene adhesive for board comprises following components by weight proportion:
Rubber powder: 1.5～3 parts;
Thickening material: 0.2～0.5 part;
Fortifying fibre: 0.2～1 part;
Useless molding sand: 55～70 parts;
Preferably, described benzene adhesive for board comprises following components by weight proportion:
Cement: 30～35 parts;
Fortifying fibre: 0.2～0.5 part;
Useless molding sand: 55～65 parts.
Preferably, described benzene adhesive for board also comprises hardening accelerator, 1～5% of the weight by mass of cement of described hardening accelerator.
Preferably, described rubber powder comprises polyvinyl alcohol and polyethylene.
Preferably, the weight percent of polyvinyl alcohol is 10%～40% in the described rubber powder.
Preferably, described thickening material comprises Walocel MT 20.000PV.
Preferably, described hardening accelerator comprises organic acid salt.
Preferably, described organic acid salt is a calcium formiate.
The present invention also provides a kind of preparation method of benzene adhesive for board, will comprise that the raw material of above composition mixes, stirring obtains benzene adhesive for board.
The invention provides a kind of benzene adhesive for board and preparation method thereof.Benzene adhesive for board provided by the invention has useless molding sand as main raw material, also comprises auxiliary materials such as cement, rubber powder, thickening material, hardening accelerator, wood fibre.In the preparation process of molding sand, quartz sand surface after selected coats for bonded dose and forms adhesive film, after the high temperature casting, volatile substances in the adhesive film falls in that high temperature is volatilized, film after the surface of useless molding sand forms one deck curing, this film not only has certain viscosity under alkaline condition, and has certain water resistance.Because useless molding sand has irregular surface, therefore have bigger contact area with auxiliary material such as cement, increased the cohesive strength of benzene adhesive for board.
Raw material is stirred and the process of setting of benzene adhesive for board in, cement generation aquation and sclerous reaction, during cement generation oxidizing reaction, can constantly discharge the calcium hydroxide of alkalescence, therefore useless molding sand is in the environment of alkalescence, therefore the film on useless molding sand surface can take place softening and present viscosity, makes between the material agglutinating more abundant.Along with slowing down of aquation, sclerous reaction, the minimizing of the amount of the calcium hydroxide of release, the alkalescence in the environment constantly reduces, and the film behind the soft ring solidifies again, has increased cohesive strength between the material.
In addition, because the film after solidifying has again been blocked the connection of pore in the brick, the pore quantity of sealing increases, and open pore quantity greatly reduces, and has reduced the water-absorbent of benzene adhesive for board, has strengthened the frost resistance of benzene adhesive for board.
Embodiment
The invention provides a kind of benzene adhesive for board, the adhesive material of conduct bonding benzene plate in building field.In benzene adhesive for board provided by the invention, with the major ingredient of useless molding sand as raw material, because river sand/river sand price height, and also has certain silt content in river sand/river sand, argillous existence is unfavorable for increasing the cohesive strength of benzene adhesive for board, river sand/river sand surface shape mostly is round in addition, and faceted pebble is few and smooth, and is little with the contact area of other batchings.With river sand/river sand facies ratio, the composition of useless molding sand mainly is by the fertilizer after the molding sand high temperature cast that comprises quartz sand, binding agent and stiffening agent, silt content is almost nil, and quartz sand surface is that polyhedron and each face are uneven, rough face helps increasing the contact area of quartz sand and cement, in process of setting, can increase cohesive strength.
Useless molding sand of the present invention is meant and utilizes molding sand to carry out the light grey or auburn solid powder that gives off after the sand mold casting, described molding sand is meant and is used for the material of moulding in the sand mold casting, mixed according to a certain percentage by selected quartz sand, sand mold binding agent, described molding sand can be clay-bonded sand, resin sand, water glass sand.During the preparation benzene adhesive for board, the molding sand that will give up earlier screens and obtains thin molding sand, and for method for screening, the present invention is also without particular limitation, can adopt vibratory screening apparatus, roller screen or common sieve to screen.The size range of useless molding sand is 10 orders～100 orders, and is preferred, and the size range of useless molding sand is 20 orders～40 orders.
Rubber powder of the present invention uses as tackiness agent in benzene adhesive for board, has advantages of good caking property in order to make rubber powder, and rubber powder can be the polymkeric substance made by the ethylenic unsaturated unit and the mixture of polyvinyl alcohol.The polymkeric substance of being made by the ethylenic unsaturated unit can be polyolefine, polyethylene for example, polypropylene, polyisobutene; Perhaps be polyalkenyl halides, for example polyvinyl chloride, polyvinylidene chloride, fluorinated ethylene propylene, polyvinylidene difluoride (PVDF); Polyvinyl ester, for example polyvinyl formate, polyvinyl acetate, polyvinyl proprionate; Perhaps be polyacrylic acid and polyacrylic ester, for example polymethyl acrylate, polyethyl acrylate, polyacrylic acid n-propyl, polyacrylic acid isopropyl ester, the positive butyl ester of polyacrylic acid, polyisobutyl acrylate, the polyacrylic acid tert-butyl ester, polyacrylic acid-2-ethylhexyl, polyacrylic acid dodecane ester, polyacrylic acid octadecane ester; Perhaps be polymethyl acrylic acid and polymethacrylate, for example polymethylmethacrylate, polyethyl methacrylate, poly-n-propyl methacrylate, polyisopropyl methacrylate, Vinalac 5920; Perhaps be polymkeric substance, for example polyacrylonitrile, the polymethacrylonitrile of nitrile; The poly-allylat compound, for example poly-allyl acetate, polyene propyl chloride; Can also be polystyrene, poly alpha methylstyrene.More than various materials can use separately to mix and make rubber powder with polyvinyl alcohol, also can mix to use to mix and make rubber powder with polyvinyl alcohol.
In order to make benzene adhesive for board have good cohesive strength, the polymkeric substance that comprises the ethylenic unsaturated unit in the rubber powder is preferably the polyethylene hydrocarbon, and is preferred, is polyethylene.In rubber powder, the content of polyvinyl alcohol is 10wt (weight percent) %～40wt%, and preferred, the content of polyvinyl alcohol is 15wt%～30wt%, and is preferred, and the content of polyvinyl alcohol is 22wt%～28wt%.Preparation method for rubber powder, the present invention is also without particular limitation, polyvinyl alcohol and polyethylene can be made and carry out the exsiccant method after the emulsion and obtain rubber powder, for example adopt spray-dired method to obtain rubber powder, the making method of these rubber powders all is a content well known to those skilled in the art.
Thickening material of the present invention, claim protective material again, be used for further improving the dispersiveness of benzene adhesive for board composition, can select water-soluble high-molecular substance for use: as the unsaturated carboxylic acid polymers such as sodium salt of polyacrylic acid (sodium), polymethyl acrylic acid (sodium), polymaleic acid (sodium), vinylformic acid-maleic acid; Perhaps as polyoxyethylene or the polymkeric substance of polyoxypropylene or their multipolymers such as polyoxyethylene glycol, polypropylene glycols; Perhaps nonionic cellulose etherses such as methylcellulose gum, ethyl cellulose, Walocel MT 20.000PV, Natvosol, carboxymethyl cellulose, carboxyethyl cellulose, hydroxypropylcellulose; The perhaps polysaccharide that produces as microbial fermentations such as yeast glucan, xanthan gum, pachyman, Sclerotium gums; Perhaps starch, starch-phosphate, sodiun alginate, gelatin and contain amino acrylic copolymer etc.Preferably, thickening material is selected from nonionic cellulose ether, and is preferred, and thickening material is selected from TYLOSE 30000.
Benzene adhesive for board among the present invention can also optionally add hardening accelerator, especially when benzene adhesive for board uses under the lower situation of cold or temperature, in order to improve the dispersive ability of benzene adhesive for board composition in water, and when smearing and hardening this benzene adhesive for board, quicken benzene adhesive for board in low temperature sclerosis at present.The addition of hardening accelerator is relevant with cement content in the benzene adhesive for board, and is preferred, and 1～5% of the weight by mass of cement of hardening accelerator is preferred, 2～5% of the weight by mass of cement of hardening accelerator.Hardening accelerator can be selected mineral compound and organic compound for use, and mineral compound can be muriate, for example calcium chloride, Repone K, magnesium chloride and iron(ic) chloride; Nitrite, for example calcium nitrite, Sodium Nitrite and potassium nitrite; Nitrate, nitrocalcite for example, SODIUMNITRATE and saltpetre; Vitriol, for example calcium sulfate, sodium sulfate and vitriolate of tartar; Thiosulphate, calcium thiosulfate for example, Sulfothiorine and Potassium Thiosulphate; Isothiocyanate, for example sodium isothiocyanate; Alkali, for example sodium hydroxide and potassium hydroxide; Carbonate, for example lime carbonate, yellow soda ash and salt of wormwood; Calcium halide, for example Calcium Bromide and calcium iodide.Hardening accelerator also can be selected following organic compound for use: amine, for example diethanolamine and trolamine; Organic acid calcium salt, for example calcium formiate and lime acetate etc.Preferably, hardening accelerator uses the calcium salt that is dissolved in easily in the water, for example calcium chloride, calcium nitrite, nitrocalcite, calcium thiosulfate, Calcium Bromide, calcium iodide, potassium acid calcium and lime acetate.Preferred, the calcium formiate of selecting no corrosive nature for use is as hardening accelerator.
For described cement herein, the present invention is also without particular limitation, can be (common for various silicate cements, high early strong, superelevation is early strong), various mixed cement (portland blast-furnace slag cements, silicon-dioxide cement, pulverized fuel ash cement), white portland cement, alundum cement, the hypervelocity hardened cement, Grouting Cement, oil well cement, low heat value cement is (than the low heat value portland blast-furnace slag cement, powder mix coal ash low heat value portland blast-furnace slag cement, the Senior Two calcium silicate cement), preferably, select ordinary Portland cement for use, preferred, select normal silicate 325 for use, 325,425, the cement of models such as 425R.
Described fortifying fibre can be organic fibres such as inorganic fibres such as glass fibre, carbon fiber and paper pulp, waste paper, tynex, trevira, polypropylene fibre, polyvinyl alcohol fiber, wood fibre, these fibers can be used alone, and also can use two or more simultaneously.Preferably, select wood fibre for use, described wood fibre is meant the fibrous material that obtains through mechanical process processing with timber, because the capillary action of fibrous texture, be used for benzene adhesive for board, can make the moisture uniform distribution in the benzene adhesive for board, help improving the cohesive strength of benzene adhesive for board, and the dimensional stability of wood fibre and thermostability have played good thermal-insulating and anti-cracking effect in benzene adhesive for board.For the length of wood fibre, can be 100 μ m～1000 μ m, preferred, the length of wood fibre is 200 μ m～1000 μ m, and is preferred, the length of wood fibre is 400 μ m～600 μ m.
All the components ratio mentioned in this article is weight ratio, has high cohesive strength in order to make benzene adhesive for board, in benzene adhesive for board provided by the invention, by weight, rubber powder is 1～5 part, and thickening material is 0.1～0.8 part, cement is 25～45 parts, and fortifying fibre is 0.1～1 part, and useless molding sand is 50～70 parts.Low excessively as pectin powder amount and amount of thickener, then be unfavorable for the cement in the benzene adhesive for board, useless molding sand are well adhered to each other, too high as pectin powder and amount of thickener, other component concentrations can reduce, and can reduce the cohesive strength of benzene adhesive for board.In benzene adhesive for board provided by the invention, the amount of cement is 25～45 parts, helps making benzene adhesive for board to keep good cohesive strength so most, and the content of useless molding sand is 50～70 parts, too much useless molding sand will reduce the content of cement, therefore can not well play adhesive attraction.Preferably, in benzene adhesive for board provided by the invention, by weight, rubber powder is 1.5～3, and thickening material is 0.1～0.8 part, and cement is 30～40 parts of branches, and useless molding sand is 55～70 parts, and fortifying fibre is 0.2～0.8 part; Preferred, in benzene adhesive for board provided by the invention, by weight, rubber powder is 1.5～3 parts, and thickening material is 0.2～0.5 part, and cement is 30～35 parts, and useless molding sand is 55～65 parts, and fortifying fibre is 0.2～0.8 part; Useless molding sand is 55～70 parts; Preferred, in benzene adhesive for board provided by the invention, by weight, rubber powder is 1.5～3 parts, and thickening material is 0.2～0.5 part, and cement is 30～35 parts, and useless molding sand is 55～65 parts, and fortifying fibre is 0.2～0.5 part; Useless molding sand is 55～70 parts.
Above-mentioned raw materials being stirred when making benzene adhesive for board, for stirring method, can use methods well known to those skilled in the art such as mechanical stirring, hand mixing, the present invention is also without particular limitation.In the process of using, after building body is finished, brush benzene adhesive for board on the wall, the thickness of benzene adhesive for board can be 2mm～10mm, preferred, the thickness of benzene adhesive for board is 2mm～5mm.After brushing benzene adhesive for board,, then the benzene plate is pasted on the wall, after the benzene adhesive for board sclerosis benzene plate is fixed on the wall the benzene adhesive for board levelling.
In order further to understand the present invention, below in conjunction with specific embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just to further specifying the features and advantages of the present invention, rather than the restriction of claim of the present invention.
For better relatively invention effect, the present invention adopts following raw material to carry out the contrast experiment of embodiment and comparative example:
Rubber powder is that Dalian, Taiwan chemistry limited-liability company produces, and model is DA-1420, and main component is polyvinyl alcohol and polyethylene;
Thickening material is that Bayer produces, and model is MW40000PFV, and main component is a hydroxypropyl methyl cellulose ether;
Cement is normal silicate 425 cement;
Wood fibre is that safe wood fibre company limited of Qingdao unit produces, and model is B-500;
Hardening accelerator is the calcium formiate that Shandong Bao Yuan chemical industry company limited produces;
Useless moulding snad composition is SiO
260%, water glass and iron powder after solidifying, it is the useless molding sand of 20 orders～40 purposes that the useless molding sand of screening obtains particle diameter.
The JC/T992-2006 standard is adopted in the benzene adhesive for board Mechanics Performance Testing.
Embodiment 1
Get rubber powder 15kg, thickening material 2kg, cement 300kg, wood fibre 2kg, the useless molding sand 650kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board.Measure the results of property of benzene adhesive for board and list in table 1.
Embodiment 2
Get rubber powder 30kg, thickening material 3kg, cement 320kg, wood fibre 5kg, the useless molding sand 600kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board.Measure the benzene adhesive for board results of property and list in table 1.
Embodiment 3
Get rubber powder 20kg, thickening material 4kg, cement 350kg, wood fibre 3kg, the useless molding sand 580kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board, measure the benzene adhesive for board results of property and list in table 1.
Embodiment 4
Get rubber powder 25kg, thickening material 5kg, cement 350kg, wood fibre 4kg, the useless molding sand 550kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board.Measure the benzene adhesive for board results of property and list in table 1.
Embodiment 5
Get rubber powder 40kg, thickening material 5kg, cement 350kg, wood fibre 4kg, the useless molding sand 550kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board, measure the benzene adhesive for board results of property and list in table 1.
Embodiment 6
Get rubber powder 20kg, thickening material 8kg, cement 350kg, wood fibre 3kg, the useless molding sand 580kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board, measure the results of property of benzene adhesive for board and list in table 1.
Embodiment 7
Get rubber powder 10kg, thickening material 3kg, cement 400kg, wood fibre 5kg, the useless molding sand 580kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board, measure the benzene adhesive for board results of property and list in table 1.
Embodiment 8
Get rubber powder 30kg, thickening material 1kg, cement 450kg, wood fibre 5kg, the useless molding sand 600kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board, measure the benzene adhesive for board results of property and list in table 1.
Embodiment 9
Get rubber powder 20kg, thickening material 4kg, cement 350kg, wood fibre 8kg, the useless molding sand 700kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board, measure the benzene adhesive for board results of property and list in table 1.
Embodiment 10
Get rubber powder 15kg, thickening material 2kg, cement 300kg, fortifying fibre 2kg, hardening accelerator 3.5kg, the useless molding sand 650kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board, measure the benzene adhesive for board results of property and list in table 1.
Embodiment 11
Get rubber powder 30kg, thickening material 3kg, cement 320kg, wood fibre 5kg, hardening accelerator 4kg, the useless molding sand 600kg of 20 orders～40 purposes, above raw material is mixed to stir obtaining benzene adhesive for board, measure the benzene adhesive for board results of property and list in table 1.
Comparative example 1
Get rubber powder 15kg, thickening material 2kg, cement 300kg, wood fibre 5kg, 20 orders～40 purpose river sand 650kg, above raw material is mixed to stir obtaining benzene adhesive for board.Measure the results of property of benzene adhesive for board and list in table 1.
Comparative example 2
Get rubber powder 30kg, thickening material 3kg, cement 320kg, wood fibre 5kg, 20 orders～40 purpose river sand 600kg, above raw material is mixed to stir obtaining benzene adhesive for board.Measure the benzene adhesive for board results of property and list in table 1.
Comparative example 3
Get rubber powder 20kg, thickening material 4kg, cement 350kg, wood fibre 3kg, 20 orders～40 purpose river sand 580kg, above raw material is mixed to stir obtaining benzene adhesive for board, measure the benzene adhesive for board results of property and list in table 1.
Table 1 benzene adhesive for board The performance test results (unit, MPa)
Continuous table 1 benzene adhesive for board The performance test results (unit, MPa)
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. benzene adhesive for board comprises following components by weight proportion:
Rubber powder: 1～5 part;
Thickening material: 0.1～0.8 part;
Cement: 25～45 parts;
Wood fibre: 0.1～1 part;
Useless molding sand: 50～70 parts.
2. benzene adhesive for board according to claim 1 is characterized in that comprising following components by weight proportion:
Rubber powder: 1.5～3 parts;
Thickening material: 0.2～0.5 part
Wood fibre: 0.2～1 part;
Useless molding sand: 55～70 parts.
3. benzene adhesive for board according to claim 1 is characterized in that comprising following components by weight proportion:
Cement: 30～35 parts;
Wood fibre: 0.2～0.5 part;
Useless molding sand: 55～65 parts.
4. according to each described benzene adhesive for board of claim 1 to 3, it is characterized in that also comprising hardening accelerator, 1～5% of the weight by mass of cement of described hardening accelerator.
5. according to each described benzene adhesive for board of claim 1 to 3, it is characterized in that described rubber powder comprises polyvinyl alcohol and polyethylene.
6. benzene adhesive for board according to claim 5, the weight percent that it is characterized in that polyvinyl alcohol in the described rubber powder is 10%～40%.
7. according to each described benzene adhesive for board of claim 1 to 3, it is characterized in that described thickening material comprises Walocel MT 20.000PV.
8. benzene adhesive for board according to claim 4 is characterized in that described hardening accelerator comprises organic acid salt.
9. benzene adhesive for board according to claim 8 is characterized in that described organic acid salt is a calcium formiate.
10. a preparation method who prepares each described benzene adhesive for board of claim 1 to 9 comprises that the raw material stirring that will contain above composition is even, obtains benzene adhesive for board.
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| CN104556878A (en) * | 2015-01-06 | 2015-04-29 | 安徽省无为县泉塘预制厂 | Novel frost-resistant concrete |
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| CN101195529A (en) * | 2007-12-17 | 2008-06-11 | 重庆大学 | Anti-cracking mortar for external wall insulation |
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| CN101195529A (en) * | 2007-12-17 | 2008-06-11 | 重庆大学 | Anti-cracking mortar for external wall insulation |
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