CN103510670A - Light cement heat-preserving decorative plate with high-level fire resistance and rain resistance characteristics - Google Patents
Light cement heat-preserving decorative plate with high-level fire resistance and rain resistance characteristics Download PDFInfo
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- CN103510670A CN103510670A CN201210200160.1A CN201210200160A CN103510670A CN 103510670 A CN103510670 A CN 103510670A CN 201210200160 A CN201210200160 A CN 201210200160A CN 103510670 A CN103510670 A CN 103510670A
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Abstract
The invention discloses a light cement heat-preserving decorative plate with the high-level fire resistance and rain resistance characteristics, and belongs to the field of cement decorative plates of construction materials. Compared with an original light cement decorative plate, the light cement heat-preserving decorative plate has the advantages that the bending strength is improved by 2-3 times, the compression strength is improved by 2 times, the fire resistance characteristic (fire resistant time is prolonged) is improved by 10-20 times, the rain resistance characteristic is improved by 3-5 times, and the light cement heat-preserving decorative plate is light in weight and good in heat preserving, heat insulating, sound absorbing and water preventing characteristics. The light cement heat-preserving decorative plate comprises a concave aluminum plate protecting and decorating component, a cement decorative plate core plate layer and an adhesive buffering layer, wherein the core plate layer is composed of ordinary portland cement, high-alumina cement, waste foam plastic, quartz sand, fine aggregate, a glass fiber grid pad, condensing regulators and vinylon non-woven fabric, the adhesive buffering layer is composed of low-module water glass, ordinary portland cement and spherical glass beads, and the condensing regulators are composed of sodium tartrate and disodium hydrogen phosphate; glass fibers and glass fiber grid fabric are sewn with a sewing machine to form the glass fiber grid pad.
Description
Technical field
The present invention relates to a kind of cement decorative plate, particularly a kind of light body cement heat preserving decorative panel with high-grade fireproof, rain resistance characteristic, belongs to the cement decorative plate technical field of constructional materials.Compare with the glass magnesium decorative board of present market fast sale, common light body cement decorative plate etc., its bending strength is high can improve 2～3 times, compressive strength is high can improve 2 times of left and right, fire performance (resistance to combustion time) improves 10～20 times, rain resistance characteristic strengthens 3～5 times, and lightweight, insulation, heat insulation, sound absorption, fire resistance characteristic are good.Therefore, not only can be used as the high-end product of inner wall decoration plate, and quite suitable to decoration of exterior wall panel products.
Background technology
The cement decorative plate of most and glass magnesium fireproof decoration plate are all good decorative material for internal wall.They have high temperature resistant, fire-retardant, sound absorption, shockproof, insect protected, the characteristic such as nontoxic, tasteless, and its intensity is higher, has certain toughness, but everything divides into two, and they also exist some fatal shortcoming:
1, owing to there is hole in cement decorative plate and glass magnesium decorative board, easily water suction, and most cement decorative plates does not carry out hydrophobic processing or waterproofing work, when ambient humidity is large, equilibrium moisture content as the cement decorative plate of exterior wall increases, the thermal conductivity of water is more much bigger than still air, thereby coefficient of thermal conductivity declines, and insulation heat-insulating property declines.
2, after cement decorative plate sclerosis, its surface texture is subject to the impact of environment temperature, and particularly, under cryogenic conditions, because coefficient of thermal expansion does not mate, decorative panel surface is easy to crack.In addition, some cement decorative plate or glass magnesium plate due to formula and internal construction not good, while using as decorative plate of outer wall, be subject to the impact of environment and the effect of injurious factor, decorative panel itself by generation shrink, neutralisation or react with aggregate gradually, the injurious factor (CO in environment
2, O
2, H
2o, Cl ion) will invade decorative panel inside, further corrode the central layer of decorative panel, make it produce larger crackle, crack or local shedding.When meeting naked light, efflorescence and decomposition sometimes, causes completely losing mechanical strength.
3, prior art is merely pursued mechanical strength or the toughness of cement decorative plate or glass magnesium decorative board conventionally.On most of cement decorative plates, glass magnesium decorative board, be difficult to see the product of high mechanical properties or the perfect adaptation of good mechanical toughness.Therefore its scope of application is not wide at present, and practicality is not good enough.
4, traditional cement decorative plate covers kraft, polyvinyl chloride plastic film, sealed polyethylene plastic etc. and prevents that moisture content from infiltrating decorative panel inside on its surface, to avoid volume expansion or the contraction due to the variation generation of environment temperature and humidity, cause the buckling deformation of decorative panel.(northeast, northwest, North China) area in China three Norths especially, summer in winter, the temperature difference are round the clock very large, and the distortion of cement decorative plate of outer wall is larger.This has seriously affected outward appearance and the application life of cement decorative plate of outer wall.
5, the common thickness of traditional cement decorative plate is thicker, and area is larger, and weight is heavier, and poor toughness is easily out of shape when producing and scene is installed, and the difficulty of production and assembling is larger.Reduced thickness, its mechanical strength can not meet again the requirement of producing and assembling.
6, traditional cement decorative plate is for elevating mechanism intensity and toughness, and some glass fiber of some interpolations, normally do not process, and directly in cement, adds glass fiber.The broken end of its glass fiber is contaminated environment not only, and infringement operating personnel's is healthy, and it is attractive in appearance at the exposed glass fiber of decoration of cement panel edges, to have a strong impact on cement decorative plate, also easily injures decorative panel installation personnel.
7, traditional light body cement decorative plate, for weight reduction, often adds the porous materials such as some polystyrene foam plasticss at cement decorative plate, but brings again fire prevention to bring problem: during breaking out of fire, will emit a large amount of harmful, toxic gases.
In order to overcome above-mentioned shortcoming, a lot of technician disclose innovative technology, such as: the patent that application number is 200710015397.1 adopts cement bonded sand oar, wire, glass fiber, water-soluble resin, pigment etc.Publication number is that the patent of CN201649520 adopts adhesive sticking glass fabric (flooding through suspension injecting tetrafluoroethylene emulsion) to make the impact strength of the fortifying fibre cement decorative plate of same thickness improve 4～5 times at the cement decorative plate back side, but the contact angle of polytetrafluoroethylene (PTFE) and water and most mortars is very little, belong to non-infiltration, moreover their coefficient of thermal expansion does not mate, therefore the easy layering of long-term use comes off, durability is not good enough, and application life is short.Application number be the patent of CN200610047877.1 and CN03137065.9 by adding vermiculite, flyash in formula, float the performance that pearl etc. promotes bodies of wall, but because its formula is not best, in other words, reasonably be not added on the ionic component material that can form ionic bond between material of main part and aglite, therefore effect is not clearly, does not more show the excellent specific property of some functional material in formula.Obviously, existing most ordinary Portland cement decorative panel and glass magnesium plate are all difficult to reach the requirement of country or industry standard simultaneously at aspects such as rupture strength, contract with dry rate, bulking factor, noninflammability, rain resistance, heat insulating ability, light body, anti-blown sand abrasivity, lower temperature resistances, also not too easily meet the inner, external wall of various buildings completely as the instructions for use of decorative panel
Summary of the invention
The object of this invention is to provide a kind of light body cement heat preserving decorative panel with high-grade fireproof, rain resistance characteristic, not only mechanical strength is high, toughness is good for it, lightweight, there is good fire prevention, insulation, heat insulation, sound absorption, waterproof, fire resistance, and can rain resistance, work simplification, substantially can meet in all directions the inner, external wall instructions for use of various buildings.
The object of the present invention is achieved like this: the light body cement heat preserving decorative panel with high-grade fireproof, rain resistance characteristic comprises the protection of spill aluminium sheet decoration element, cement decorative plate core layer and adhesive cushion coat.Wherein, spill aluminium sheet protection decoration element is that four blocks of side plates by a base plate and its periphery form; in spill aluminium sheet protection decoration element, have cement decorative plate core layer, adhesive cushion coat, and adhesive cushion coat is between cement decorative plate core layer and the base plate of spill aluminium sheet protection decoration element and between four side plates and cement decorative plate core layer.
Described spill aluminium sheet protection decoration element is to be 0.8～1.2mm by thickness, and 1.0mm aluminium sheet preferably utilizes the processing and manufacturing of sheet metal technique, and only four side plates of its base plate and periphery consist of aluminium sheet.The top of its four side plates is processed into respectively to the short flanging of level that becomes an angle of 90 degrees with side plate plane; its four short flangings of level launch to the inner side of spill aluminium sheet protection decoration element body respectively; and the normal parallel with this side plate plane; in addition the miter angle of being convenient to docking is processed into respectively on the adjacent contact limit of its four short flangings of level, smooth to guarantee to dock each other.In other words, at aluminium sheet protection decoration element upper surface, four inner skirt have inwardly been formed.In addition, on each aluminium lateral plate, process respectively more than 2 manholes, to increase they and the bonded area of aluminium lateral plate, the bond strength of lifting decorative panel core layer and aluminium lateral plate while making cement decorative plate core layer.
Described adhesive cushion coat is to consist of adhesive (low modulus water glass glue), Portland cement and spherical glass microballon; it can promote the dispersion efficiency of some stress between the base plate and cement decorative plate core layer and periphery Si Ge side and cement decorative plate core layer of aluminium sheet protection decoration element.This stress comprises the expansion that produces due to material moisture absorption, dehumidification in shrinkage stress that cement heat preserving decorative panel installs stress, cement decorative plate drying technology process and produce, use procedure, shrinkage stress and due to the variation of environment temperature and humidity and the thermal stress of not mating generation of cement board and aluminium sheet coefficient of thermal expansion etc.In addition, in adhesive cushion coat due to the interaction of water glass adhesive and portland cement, generate water-fast calcium silicates, and carry out gelation, therefore immersion that can anti-sealing, promote the water proofing property of decoration of cement plated construction, and can prevent the neutralisation of cement decorative plate, extend its application life.Its reason is as follows:
As everyone knows, the forfeiture of cement component alkalescence---neutralisation in decorative panel, mean the aging of cement decorative plate, and the viscosity of low modulus water glass glue in adhesive cushion coat and Portland cement is all larger, and can show compared with high alkalinity (pH value is up to 12 left and right), obviously when they coordinate with spherical glass microballon, not only can prevent the neutralisation of cement decorative plate, but also generation peptizaiton and cushioning effect that can be to some stress of cement decorative plate, prevent formation and the expansion of crackle, promote the structural strength of decoration of cement plated construction, improve waterproof ability and effect of heat insulation.
In described cement decorative plate, be provided with by Portland cement, high alumina cement, waste foam plastics particulate material (its maximum gauge should be less than cement decorative plate central layer thickness 1/5th), white quartz sand (as settling promotor, diameter is 0.1～0.8 μ m, SiO
2amount should be higher than 90%), fines is (such as river sand, zeolite, vermiculite etc., its diameter is that the bulky grain of 800 μ m answers no more than 5%, and moisture content is less than 1.5%), the cement solidification mixed layer that forms such as fiberglass gridding pad, the mediator agent that condenses (take sodium hydrogen phosphate and sodium tartrate as key component), vinylon fiber nonwoven layer.Its vinylon fiber nonwoven layer is arranged on the upper surface of described cement decorative plate central layer.
The formula of cement decorative plate core layer is as follows: by weight, Portland cement is 15%～25%, high alumina cement is 40%～55%, waste foam plastics particulate material is 1.5%～4.0%, white quartz sand is 3.0%～12.0%, and fines is 8.0%～16.0%, and fiberglass gridding pad is 4.5%～18.0%, the mediator agent that condenses is 0.1%～6.0%, and vinylon fiber nonwoven layer is 0.01%～0.09%.Select cement decorative plate core layer to there is the reasons are as follows of above-mentioned composition:
As everyone knows, it is rigid that high alumina cement has good potential speed; It has extremely strong refractoriness, resistance to chemical attack after condensing, in addition, because comprised the blast-furnace slag composition with potential hydraulicity in high alumina cement, so there are extremely strong fire line, resistance to chemical attack, water proofing property, long-life, anti-aging property etc. after condensing, therefore as decorative plate of outer wall, use, have much attractive, but slightly height is a bit for its cost ratio Portland cement.Obviously, from material cost angle, consider, preferably the ratio of Portland cement component accounts for more, but after cement decorative plate condenses, its surface texture is subject to the impact of environment temperature, particularly under cryogenic conditions, because coefficient of thermal expansion does not mate, decorative panel surface is easy to crack.Therefore, must add moderate high alumina cement, white quartz sand, fines, glass fiber and the mediator agent etc. that condenses.
Many in common knowledge, the kind of the combination formula of different labels cement, the granularity of fines and moisture content, additive and adding conditional and operating condition (particularly processing temperature) are very large on the impact of decorative panel characteristic.Obviously, for cement decorative plate is shaped, guarantee the stability of size, guarantee surface smoothing, Bu Ta limit, edge, and when high temperature, low temperature neither cracking, must find out optimum formula and optimization process.We found through experiments: and organic retarding agent of only utilization routine (such as: sodium tartrate, citric acid, gluconate, hydroxycarboxylic acid etc.) be difficult to achieve the above object.For example, even if the inorganic retarder that employing people know (: zinc oxide), can not meet above-mentioned requirements.Therefore the present invention utilizes white quartz sand (as settling promotor) and the mediator agent that condenses (to consist of sodium tartrate and sodium hydrogen phosphate, by weight, the latter is 0.05%～3.0%, the former is 0.32%～4.0%) mixed liquor, regulate rate of set, address the above problem, thereby improved technique operability, improved product quality and output, and also improved and tend to crack after former cement setting and the defect such as whiting.
Unlike the prior art, for the weight that increases heat insulation effect and alleviate cement decorative plate, the present invention adopts light material methods such as adding waste foam plastics particulate material, glass fiber, glass fiber grid cloth, vinylon fiber nonwoven, reduces the bulk density of described cement decorative plate core and improves heat insulation (cold) effect.This not only can not reduce its mechanical strength, and can improve significantly its toughness, improves the repeatability of operability and technique.
Although comprised a small amount of organic matter---waste foam plastics particulate material, sodium tartrate in above-mentioned formula, owing to having used the extremely excellent high alumina cement of some fire-resistance properties in formula, and adopted suitable structure and technique, therefore also can make described cement decorative plate core there is excellent fire performance.
In the glass fiber adding technique of existing cement decorative plate core, conventionally glass fiber is not carried out to special disposal, directly in cement, add glass fiber.The broken end of its glass fiber is contaminated environment not only, and infringement operating personnel's is healthy, and it is attractive in appearance at the exposed glass fiber of decoration of cement panel edges, to have a strong impact on cement decorative plate, also easily injures decorative panel installation personnel and porter.Different from conventional art, the glass fiber that the present invention adds in cement decorative plate core, glass fiber grid cloth are not to adopt extensive method, but make fiberglass gridding pad---glass fiber, glass fiber grid cloth are utilized industrial sewing machine to make and formed.The method has been improved environment protecting significantly, and good looking appearance is generous.By weight, the proportioning of fiberglass gridding pad is glass fiber 3%～10.0%, glass fiber grid cloth 1.0%～9.0%.Owing to adopting this structure, can produce following effect:
When cement slurry immerses fiberglass gridding pad, enter each composition of glass fiber mesh pad inside along with each component particle size in formula produces different selective distributions, it is the bosom that minimum grain size component particle enters fiberglass gridding pad inside, component particle penetration depth compared with small particle diameter takes second place, and the large component particle of particle diameter is difficult to enter fiberglass gridding pad inside.As a result, be positioned at fiberglass gridding pad outside, the overwhelming majority is light weight aggregate component structure layer, and what be positioned at grid pad inside is mostly the component structure layer that mechanical strength is high.Obviously, the former has undertaken insulation layer effect, wet and moisture-keeping function thoroughly, and the latter can play the core supporting role of similar Steel Bars in Concrete Structure.Therefore, be easy to realize each component particle in formula cycle in described cement decorative plate core to repeat distribution effect, not only make cement decorative plate core mechanical strength large, and cause the good heat-insulation effect of plate core, thoroughly wet strong with moisture-keeping function, density is little, and cost is low.The function of this structure is quite similar to people's skin function: extraneous moisture almost can not infiltrate insulation and decoration intralamellar part, and in the globule of heat insulating decorative board internal condensation, but easily vaporization, become steam, by heat insulating decorative board top layer, be dispersed into the external world, prevented drum distortion, stop leak and crackle.
In order to increase the content of each component particle in fiberglass gridding pad in the cement decorative plate core with fiberglass gridding pad, conventionally utilize roller to carry out roll extrusion to the cement decorative plate core not yet condensing, when this pressure is cancelled, to there is elastic recoil in the decorative panel core with fiberglass gridding pad, almost can recover its original thickness by Enough, thereby in the cement slurry that causes condensing not yet completely, occurred that a lot of inside approaches the hole of vacuum state in fiber mesh pad, therefore after cement decorative plate core condenses completely, can improve significantly thermal insulation and the toughness of decoration of cement board finished product, reduce its density.
In addition, for when promoting cement decorative plate core mechanical strength, improve its thermal insulation and toughness, reduce its density, should increase significantly the microporosity of cement decorative plate core, and reduce as far as possible its through-hole rate.Obviously, the processing dimension of glass fiber is also quite very learned: test and show, diameter is the glass fiber of 100 μ m, and it is more suitable that its length is processed as 30mm left and right.When being greater than 45mm, glass fiber is easily crooked, in the shaping of plate core, glass fiber section often will produce each other overlapping or overlap, slurry can not fully enter and between glass fiber section, carry out filling, thereby form space or the cavity of many large-sizes, and in the formed body of glass fiber section and slurry, glass fiber section is longer, more easily form through hole.
Beneficial functional of the present invention is as follows:
The spill aluminium sheet protection decoration element with the light body cement heat preserving decorative panel of high-grade fireproof, rain resistance characteristic, good looking appearance not only, but also the assurance of rain resistance and high mechanical properties can be further provided.In cement decorative plate core layer, by Portland cement, high alumina cement, waste foam plastics particulate material, (its diameter should be less than 1/5th of cement decorative plate central layer thickness.), (as settling promotor, diameter is 0.1～0.8 μ m to white quartz sand, Si0
2containing ratio be more than 90%), (diameter is that the bulky grain of 800 μ m is no more than 5% to fines, and moisture content is less than 1.5%.Such as river sand, zeolite, vermiculite, slag etc.), the cement solidification mixed layer of the formation such as fiberglass gridding pad, the mediator agent that condenses (sodium hydrogen phosphate and sodium tartrate are key component) and bending strength, compressive strength, fire line, the water resistance that vinylon fiber nonwoven layer not only can improve decorative panel significantly, increase thermal insulation, thoroughly wet and moisture retention, alleviate its bulk density, and product shaping is good, dimensionally stable, outer surface smoother, Bu Ta limit, edge, and neitherly when high temperature, low temperature easily crack.The function of this structure is quite similar to people's skin function: extraneous moisture almost can not infiltrate insulation and decoration intralamellar part, and in the globule of heat insulating decorative board internal condensation, but easily vaporization, become steam, by heat insulating decorative board top layer, be dispersed into the external world, prevented drum distortion, stop leak and crackle.The described mediator agent that condenses is to consist of sodium tartrate and sodium hydrogen phosphate, and by weight, wherein sodium hydrogen phosphate is 0.05%～3.0%, and sodium tartrate is 0.32%～4.0%.
Especially it may be noted that: it is quite characteristic that the present invention adds the method for fiberglass gridding pad in cement decorative plate core.Although the method is simple, effect is remarkable, and this structure can produce following effect:
When cement slurry immerses fiberglass gridding pad, enter each composition of glass fiber mesh pad inside along with each component particle size in formula produces different selective distributions, it is the bosom that minimum grain size component particle enters glass fiber mesh pad inside, compared with small particle diameter component particle penetration depth, take second place, and the large component particle of particle diameter is difficult to enter fiberglass gridding pad inside.Result, the overwhelming majority who is positioned at fiberglass gridding pad outside is light weight aggregate component structure layer, what be positioned at grid pad inside is the component structure layer that mechanical strength is high, and the former is equivalent to be incubated structure layer, wet and moisture-keeping function layer thoroughly, and the latter plays the reinforcing bar effect of concrete structure.Obviously, be easy to realize each component particle in formula cycle in described cement decorative plate core repeat to distribute, not only mechanical strength is large, and good heat-insulation effect, and density is little, and cost is low.In brief, fiberglass gridding pad played the part of the distributor of cement slurry, the leak-proof device of the mechanical damping device of decorative panel core, glass fiber disintegrating slag, the role of the mechanical strength reinforcing device of decorative panel.
In a word, have the combination of above-mentioned some structure of the cement decorative plate of high mechanical properties, low-density, high tenacity, rain resistance, high-grade fireproof characteristic, make that described function is supplemented mutually, stack, beneficial functional is more outstanding.
The technical characteristic of typical sample of the present invention detects as follows:
The detection of A, proportion
The proportion of measuring cement heat preserving decorative panel shows, natural silica Sand---the proportion (with respect to water) of the light body cement heat preserving decorative panel of river sand is 1.8～2.1 in tradition employing, and the proportion (with respect to water) of light body cement heat preserving decorative panel of the present invention is 1.1～1.4.Obviously, in weight, the light body cement heat preserving decorative panel that the present invention has high-grade fireproof, a rain resistance characteristic is lighter than the light body cement heat preserving of the routine decorative panel of same size far away.
The detection of B, mechanical strength and fire performance
Utilize material mechanical parameter tester and gas furnace, mechanical strength and the fire performance of test cement heat insulating decorative board.Using traditional cement heat preserving decorative panel that Portland cement and foam grain material be main component and light body cement heat preserving decorative panel sample of the present invention respectively as trial target.The appearance and size of 2 kinds of trial targets is all 900 (Long) * 900 (Wide) * 80mm (height).
Actual measurement shows, compare with the light body cement heat preserving decorative panel of present market sale, the bending strength with the light body cement heat preserving decorative panel of high-grade fireproof, rain resistance characteristic of the present invention can improve 2～3 times, compressive strength is high can be improved more than 2 times, fire performance (resistance to combustion time) can improve 10～20 times, and rain resistance characteristic strengthens 3～5 times.In addition, with naked-eye observation, measure and find, sample is shaped, dimensionally stable, and outer surface smoother, flawless, Bu Ta limit, edge, and when high temperature, low temperature, do not produce the crackle that naked-eye observation can observe yet.Through test, its bending strength can reach 3.6N/mm<sup TranNum="93">2</sup>, compressive strength is 18N/mm<sup TranNum="94">2</sup>left and right.Thickness of the present invention is the cement heat preserving decorative panel typical sample of 70mm, in 2011 according to GB8624-2006<constructional materials and goods classification system for fire performance>GB, through fixedly the go out fire retarding component quality supervision and test center that unifies of country, be up to the standards, check its combustibility to reach A1 level.Through national building materials test center, radionuclide specific activity (Bq/Kg), internal radiation index, external exposure index are tested, meet the requirement of GB6566-2010 " radioactive material nucleic is limited the quantity of " standard completely.
Accompanying drawing explanation
Fig. 1 is the structural profile schematic diagram with the light body cement heat preserving decorative panel of high-grade fireproof rain resistance characteristic.
Fig. 2 is the schematic top plan view with the light body cement heat preserving decorative board structure of high-grade fireproof rain resistance characteristic.
The specific embodiment
Below in conjunction with accompanying drawing 1 and accompanying drawing 2 and embodiment, the present invention is described further; The present embodiment is implemented take technical solution of the present invention under prerequisite, provided detailed embodiment, but protection scope of the present invention is not limited to following embodiment.As depicted in figs. 1 and 2, of the present invention have a high-grade fireproof, the light body cement heat preserving decorative panel 1 of rain resistance characteristic, it is by spill aluminium sheet protection decoration element 2, cement decorative plate core layer 3 and adhesive cushion coat 4 form, difference with the prior art is: the described light body cement heat preserving decorative panel 1 with high-grade fireproof rain resistance characteristic is provided with a spill aluminium sheet protection decoration element 2, in spill aluminium sheet protection decoration element 2, there are cement decorative plate core layer 3 and adhesive cushion coat 4, and adhesive cushion coat 4 is between the base plate 6 of cement decorative plate core layer 3 and spill aluminium sheet protection decoration element 2 and four side plates 7, 8, 9, 10 and cement decorative plate core layer 3 between.
Described spill aluminium sheet protection decoration element 2 is that 1.0mm aluminium sheet forms by thickness; and only four side plates the 7,8,9, the 10th of its lower shoe 6 and periphery, consist of aluminium sheet; at its four side plates, 7,8,9 ,10 tops; processing becomes the short flanging 11 of level of an angle of 90 degrees with side plate respectively; the short flanging 11 of its four levels launches to the inside of spill aluminium sheet protection decoration element 2 respectively; and miter angle is processed into respectively in the adjacent contact limit of four short flangings 11 of level, smooth to guarantee to dock each other.In other words, at aluminium sheet protection decoration element upper surface, four inner skirt 11 have inwardly been formed.In addition, on each aluminium lateral plate 7,8,9,10, process respectively more than 2 manholes 5, to increase they and the bonded area of aluminium lateral plate 7,8,9,10, lifting bond strength while making cement decorative plate core layer 3.
Described adhesive cushion coat 4 is to consist of low modulus water glass adhesive, Portland cement and spherical glass microballon; it can promote the dispersion efficiency of some stress between aluminium sheet protection decoration element base plate 6 and four side plates 7,8,9,10 of periphery and the base plate 6 of cement decorative plate core layer 3 and four side plates 7,8,9,10.Described stress comprises the mechanical stress that produces due to material moisture absorption, dehumidification in mechanical stress that cement heat preserving decorative panel installs stress, produces due to cement board drying technology process, use procedure and due to the thermal stress of not mating generation of variation, cement board and the aluminium sheet coefficient of thermal expansion of environment temperature and humidity etc.In addition, because water glass and portland cement effect cause the gelation of water glass, can also promote the water proofing property of decoration of cement plated construction, prevent the neutralisation of cement decorative plate, extend its application life.
In described cement decorative plate core layer 3, be provided with by Portland cement, high alumina cement, waste foam plastics particulate material (its diameter should be less than cement decorative plate central layer thickness 1/5th), white quartz sand (as settling promotor, diameter is 0.1～0.8 μ m, by weight, the SiO comprising
2be not less than 90%), fines is (such as river sand etc., by weight, diameter is that the bulky grain of 800 μ m is no more than 5%, and moisture content is less than 1.5%), the mediator agent that condenses (sodium hydrogen phosphate and sodium tartrate are key component) bed of material 14, fiberglass gridding pad 12, the vinylon fiber nonwoven layer 13 that form.In other words, cement decorative plate core layer 3 is to consist of the bed of material 14, the fiberglass gridding pad 12 of periodically overlapping making and the vinylon fiber nonwoven layer 13 that is arranged on the outmost surface of described cement decorative plate central layer 3.
Their formula is as follows: by weight, Portland cement is 15%～25%, high alumina cement 40%～55%, waste foam plastics particulate material 1.5%～4.0%, fiberglass gridding pad 12 is 4.5%～18.0%, white quartz sand 3.0%～12.0%, fines 8.0%～16.0%, the mediator agent 0.1%～6.0% that condenses, vinylon fiber nonwoven layer 13 is 0.01%～0.09%.
Select described cement solidification mixed layer to there is the reasons are as follows of above-mentioned composition:
As everyone knows, it is rigid that high alumina cement has potential speed, has extremely strong refractoriness, resistance to chemical attack after it condenses.In addition, because comprised the blast-furnace slag composition with potential hydraulicity in high alumina cement, so it is ageing-resistant to have extremely strong fire line, resistance to chemical attack, long-life after condensing, therefore have much attractive, but slightly height is a bit for its cost ratio Portland cement.Obviously, from material cost angle, consider, the ratio that preferably Portland cement component accounts for is more, but after cement decorative plate condenses, its surface texture is subject to the impact of environment temperature, particularly under cryogenic conditions, because coefficient of thermal expansion does not mate, decorative panel surface is easy to crack.High alumina cement, white quartz sand, fines, glass fiber and the retarding agent that therefore, must add.Many in common knowledge, the kind of the combination formula of different labels cement, the granularity of fines and water absorption rate, additive and adding conditional and operating condition (particularly processing temperature) are of great impact to decorative panel characteristic.Obviously, for cement decorative plate is shaped, guarantee the stability of size, guarantee surface smoothing, Bu Ta limit, edge, and when high temperature, low temperature neither cracking, must adopt optimum formula and optimization process.We found through experiments: and organic retarding agent of only utilization routine (such as: sodium tartrate, citric acid, gluconate, hydroxycarboxylic acid etc.) be difficult to achieve the above object.For example, even if the inorganic retarder that employing people know (: zinc oxide), can not meet above-mentioned requirements.Therefore white quartz sand (as settling promotor) and condense mediator agent (sodium tartrate and sodium hydrogen phosphate are usingd in the present invention, wherein sodium hydrogen phosphate is 0.05%～3.0%, sodium tartrate is 0.32%～4.0%) combination of mixed liquor, regulate suitable time of setting, rate of set, address the above problem.Thereby improve technique operability, improve product quality and yield, and also improved and tend to crack after former cement setting and the defect such as whiting.
Unlike the prior art, for the weight that increases heat insulation effect and alleviate cement decorative plate, the present invention adopts light material methods such as adding waste foam plastics particulate material, glass fiber, glass fiber grid cloth, vinylon fiber nonwoven, reduces the bulk density of described cement decorative plate central layer and improves heat insulation (cold) effect.This not only can not reduce its mechanical strength, and can improve significantly its toughness, improves the repeatability of operability and technique.By weight, the proportioning of fiberglass gridding pad is glass fiber dimension 3%～10.0%, glass fiber grid cloth 1.0%～9.0%.
When adding glass fiber, prior art is not processed conventionally especially, directly in cement, adds glass fiber.The broken end of its glass fiber is contaminated environment not only, and infringement operating personnel's is healthy, and it is attractive in appearance at the exposed glass fiber of decoration of cement panel edges, to have a strong impact on cement decorative plate, also easily injures decorative panel transportation, installation personnel.Different from traditional handicraft, the glass fiber that the present invention adds in cement decorative plate core layer, glass fiber grid cloth are not to adopt extensive method, but make fiberglass gridding pad---glass fiber, glass fiber grid cloth are utilized industrial sewing machine to make and formed.The method has been improved environment protecting significantly, and good looking appearance is generous.
Claims (8)
1. the light body cement heat preserving decorative panel with high-grade fireproof rain resistance characteristic comprises the protection of spill aluminium sheet decoration element, cement decorative plate core layer and adhesive cushion coat; it is characterized in that: cement decorative plate core layer and adhesive cushion coat are placed in the inside of spill aluminium sheet protection decoration element; its spill aluminium sheet protection decoration element consists of four blocks of side plates of a base plate and its periphery, and adhesive cushion coat is protected at cement decorative plate core layer and spill aluminium sheet between the base plate of decoration element and four side plates and cement decorative plate core layer between.
2. the light body cement heat preserving decorative panel with high-grade fireproof rain resistance characteristic according to claim 1, it is characterized in that: described spill aluminium sheet protection decoration element only four side plates respectively with 2 above manholes of its base plate and periphery is to consist of aluminium sheet, at the top of four side plates, be processed into respectively the short flanging of level that becomes an angle of 90 degrees with side plate plane, its four short flangings of level are launched to the inner side of spill aluminium sheet protection decoration element body respectively, normal parallel with self side plate, and the miter angle of being convenient to smooth docking is processed into respectively in the adjacent contact limit of four short flangings of level.
3. the light body cement heat preserving decorative panel with high-grade fireproof rain resistance characteristic according to claim 1, is characterized in that: described adhesive cushion coat is to consist of low modulus water glass adhesive, Portland cement and spherical glass microballon.
4. the light body cement heat preserving decorative panel with high-grade fireproof rain resistance characteristic according to claim 1, its cement decorative plate core layer consists of Portland cement, high alumina cement, waste foam plastics particulate material, white quartz sand, fines, fiberglass gridding pad, the mediator agent that condenses, vinylon fiber nonwoven layer, it is characterized in that: the diameter of waste foam plastics particulate material should be less than 1/5th of cement decorative plate central layer thickness, the diameter of white quartz sand is 0.1～0.8 μ m, by weight, the SiO that quartz sand comprises
2be not less than 90%, in fines, diameter is that the bulky grain of 800 μ m is no more than 5%, and moisture content is less than 1.5%.
5. according to claim 1 and the light body cement heat preserving decorative panel with high-grade fireproof rain resistance characteristic claimed in claim 4, it is characterized in that: count by weight ratio, Portland cement is 15%～25%, high alumina cement is 40%～55%, waste foam plastics particulate material is 1.5%～4.0%, white quartz sand is 3.0%～12.0%, fines is 8.0%～16.0%, fiberglass gridding pad is 4.5%～18.0%, the mediator agent that condenses is 0.1%～6.0%, and vinylon fiber nonwoven layer is 0.01%～0.09%.
6. according to claim 1 and the light body cement heat preserving decorative panel with high-grade fireproof rain resistance characteristic claimed in claim 5, it is characterized in that: the described mediator agent that condenses is comprised of sodium tartrate and sodium hydrogen phosphate, by weight, sodium hydrogen phosphate is 0.05%～3.0%, and sodium tartrate is 0.32%～4.0%.
7. according to claim 1 and the light body cement heat preserving decorative panel with high-grade fireproof rain resistance characteristic claimed in claim 5, it is characterized in that: fiberglass gridding pad is that glass fiber, glass fiber grid cloth are utilized industrial sewing machine to make and formed.
8. according to claim 1 and the light body cement heat preserving decorative panel with high-grade fireproof rain resistance characteristic claimed in claim 7, it is characterized in that: by weight, the proportioning of fiberglass gridding pad is glass fiber 3%～10.0%, glass fiber grid cloth 1.0%～9.0%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210200160.1A CN103510670A (en) | 2012-06-18 | 2012-06-18 | Light cement heat-preserving decorative plate with high-level fire resistance and rain resistance characteristics |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210200160.1A CN103510670A (en) | 2012-06-18 | 2012-06-18 | Light cement heat-preserving decorative plate with high-level fire resistance and rain resistance characteristics |
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| CN103510670A true CN103510670A (en) | 2014-01-15 |
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| CN111302757A (en) * | 2020-03-19 | 2020-06-19 | 江苏朗悦新材料科技有限公司 | High-whiteness MGO substrate, preparation method and decorative plate with substrate |
| CN111512464A (en) * | 2017-12-21 | 2020-08-07 | H.K.O.绝缘-纺织技术股份有限公司 | Multi-layer thermal insulation element for a battery |
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