CN108003796B - Hot-melt adhesive for stone - Google Patents
Hot-melt adhesive for stone Download PDFInfo
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- CN108003796B CN108003796B CN201711202020.7A CN201711202020A CN108003796B CN 108003796 B CN108003796 B CN 108003796B CN 201711202020 A CN201711202020 A CN 201711202020A CN 108003796 B CN108003796 B CN 108003796B
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- stone
- binder
- powder
- bonding
- melt adhesive
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- 239000004575 stone Substances 0.000 title claims abstract description 79
- 239000004831 Hot glue Substances 0.000 title abstract description 31
- 239000000853 adhesive Substances 0.000 claims abstract description 22
- 230000001070 adhesive effect Effects 0.000 claims abstract description 22
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 239000011230 binding agent Substances 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 10
- 239000002612 dispersion medium Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000012065 filter cake Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 2
- 239000001273 butane Substances 0.000 claims description 2
- 239000000084 colloidal system Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims 1
- 239000003063 flame retardant Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000004566 building material Substances 0.000 abstract description 2
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000007767 bonding agent Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- 229920001223 polyethylene glycol Polymers 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 229910014472 Ca—O Inorganic materials 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 238000005411 Van der Waals force Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004200 deflagration Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 229910018084 Al-Fe Inorganic materials 0.000 description 1
- 229910018192 Al—Fe Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910001051 Magnalium Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- DTPCFIHYWYONMD-UHFFFAOYSA-N decaethylene glycol Polymers OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO DTPCFIHYWYONMD-UHFFFAOYSA-N 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J1/00—Adhesives based on inorganic constituents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/304—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to the field of building materials, in particular to a hot-melt adhesive for stone. The hot melt adhesive for stones comprises: 25-40 parts of magnesium powder, 10-15 parts of aluminum powder, 45-85 parts of silicon dioxide powder, 50-65 parts of calcium carbonate powder, 8-10 parts of iron oxide powder and 2-5 parts of potassium chlorate. The hot-melt adhesive for stone has good bonding effect, is convenient and simple to use, and does not need to carry out special treatment on the bonding surface of the stone. The adhesive has high bonding speed, convenient and safe operation, and can be used for bonding and repairing cracks or damages. The preparation method of the hot-melt adhesive for the stone is simple, and the product is easy to store and transport.
Description
Technical Field
The invention relates to the field of building materials, in particular to a hot-melt adhesive for stone.
Background
The stone is a common raw material in the fields of building and decoration, and has the advantages of strong weather resistance, elegant appearance and the like. However, during the transportation or long-term use of the stone, the stone is stressed by various factors such as vibration, moisture absorption deformation, extrusion and impact, and inevitably cracks or even breaks.
For cracks or damages of the stone, cement and the like are generally adopted for filling, but the cement and the stone have great difference in physical and chemical properties and color textures, so that not only can effective adhesion be realized, but also the appearance of the cement cannot meet the actual requirements. In view of the above, various types of stone adhesives (CN1145389A, CN103409077B) have been disclosed in the prior art in order to improve the adhesion effect. However, these stone adhesives are considered to be improved by cement from various viewpoints such as the kind of active ingredients, the surface treatment for application, and the manner of using the adhesives. The stone bonding agents disclosed in the prior art generally require polishing of the bonding surface of the stone, then applying the bonding agent to the bonding surface, and waiting for a period of time for curing, and the bonding agent and the stone still rely on van der waals forces and hydrogen bonding forces as the basis for bonding, without modifying the bonding agent and the stone at the level of chemical reaction. On the other hand, since van der waals force and hydrogen bonding force are relied upon, and effective contact between the adhesive and the bonding surface needs to be ensured, the stone surface needs to be finely polished to prevent poor bonding caused by gas hidden by surface unevenness, which adds an additional process. In a third aspect, the adhesive and the stone still have a great difference in composition, and even though the prior art discloses stone powder as a raw material adhesive, the stone powder is "suspended and dispersed" in the adhesive layer through a matrix substance instead of being used as the adhesive layer by itself, so that the adhesive layer and the stone cannot be converged in physical and chemical properties and apparent properties.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the hot-melt adhesive for the stone, which is convenient to use and firm in bonding, and the bonded components of the adhesive are closer to the real components of the stone.
Specifically, the hot melt adhesive for stones includes:
the hot-melt adhesive for stone disclosed by the invention takes silicon dioxide and calcium carbonate as main components, and is closer to the real components of stone. The invention is different from the adhesive disclosed in the prior art, the adhesive is a 'hot melt type' skin, the magnesium powder and the aluminum powder in the formula are added for the function, the basic principle is that silicon dioxide and calcium carbonate are heated to viscous state or even molten state at extremely high temperature generated by magnalium thermal reaction, the stone bonding surface is fused to a certain degree, so that a viscous flow molten state interface 'stone bonding surface-silicon calcium powder matrix' is obtained, after the interface is condensed, a physical-chemical doped stone-adhesive layer integrated structure is obtained, and the two phases are bonded by physical force and form more effective bonding depending on intermolecular chemical action, so that the extremely high bonding strength is achieved.
Magnesium, aluminum and iron oxide are not heat source substances of magnesium-aluminum thermal reaction, and elements of the magnesium-aluminum thermal reaction participate in the formation of the stone-adhesive layer integrated structure in the reaction process, so that the adhesive layer is toughened to a certain extent, and the repaired stone is prevented from being damaged again in situ (an adhesive interface) under the same use condition due to the same stress. It is speculated that the iron element can participate in the crystal lattice of the Si-Ca-O crystal and be matched with magnesium and aluminum to form Mg-Al-Fe alloy, so that the extremely high brittleness of the Si-Ca-O crystal is reduced, and the toughening effect is further achieved.
The exothermic reaction of magnesium and aluminum is of limited duration despite the extremely high temperature and can be controlled by adjusting the amount of magnesium aluminum powder used. By adopting the using amount of the magnesium-aluminum powder, the heat release time of the hot-melt adhesive for stone can be ensured to be enough to form the interface in viscous flow molten state, and other problems caused by uneven stone heating due to excessive heat generation can be avoided; in addition, the exothermic reaction of magnesium and aluminum can be realized by simply igniting magnesium powder (mainly igniting magnesium powder and then igniting aluminum powder), and the operation is very convenient.
The dosage of the iron oxide powder is not excessive, otherwise, the effective proceeding of the magnesium-aluminum exothermic reaction is influenced on one hand, and the potential problem of poor oxidation resistance exists on the other hand.
The hot-melt adhesive for stone can be used for bonding stone, is also suitable for a small range of stone defects, for example, the defect can be repaired after the adhesive is filled in the defect and ignited and cooled.
Preferably, the magnesium powder has an average particle size of 50 to 100 μm, preferably 60 to 78 μm. The combustion temperature of the magnesium powder is extremely high, but the magnesium powder has the defect of easy oxidation, and if the particle size of the magnesium powder is too small, deflagration is easily caused, so that the hot-melt adhesive for the stone has potential safety hazards in use; and the ignition is difficult when the particle size of the magnesium powder is too large.
Preferably, the average particle size of the aluminum powder is 5-10 μm, and preferably 8-8.5 μm. The combustion temperature of the aluminum powder is slightly lower than that of the magnesium powder, and the combustion temperature and the combustion rate of the hot-melt adhesive for the stone are adjusted to be beneficial to melting of other materials in addition to providing aluminum element to form a desired alloy and/or crystal; the aluminum powder with too small particle size can cause too violent combustion reaction and too short time, and the molten mass can not fully infiltrate the surface of the stone; if the particle size of the aluminum powder is too large, the burning time is undesirably prolonged, which may cause continuous dissipation of heat and failure to melt other inorganic materials effectively, and may cause cracking of the bonded stone due to uneven heating.
The average particle size of the iron oxide powder is not particularly limited, but is generally 50 to 60 μm for the purpose of uniform mixing or the like.
The average particle diameters of the silica powder and the calcium carbonate powder are not particularly limited, and are preferably 100-200 μm, more preferably 120-150 μm, from the viewpoint of easy dispersion and mixing and easy melting.
Further, the hot melt adhesive for stones further comprises 8-15 parts, preferably 8-10 parts of an organic binder. By introducing the organic adhesive, a gelatinous product can be prepared, the problems of dust pollution and the like are avoided, and the glue is convenient to apply. The type of the organic binder is not particularly limited as long as the inorganic powders can be bonded to form a hot melt adhesive for pasty stone. Examples thereof include polyvinyl alcohol, polyethylene glycol, polyvinyl pyrrolidone, polyolefin, polyvinyl chloride, EVA, starch, and chitosan. From the viewpoint of environmental protection for reducing VOC emission, a water-soluble polymer is preferably used as the hot melt adhesive. The amount of the organic binder should not be too large, otherwise it generates a large amount of gas during combustion of the hot-melt binder for stone, and tends to cause defects such as undesirable voids in the binder layer.
The invention further provides a preparation method of the hot melt adhesive for the stone, which comprises the following steps:
s01, preparing raw materials according to the formula;
s02, adding a dispersion medium into a mixing kettle with a stirring device, and starting stirring;
s03, adding the raw materials under stirring and mixing;
and S04, filtering, collecting a filter cake, and drying to obtain the hot melt adhesive for the stone.
The dispersion medium is not particularly limited as long as it can provide a dispersion, suspension environment, and the like, for example, water, chloroform, ethanol, carbon tetrachloride, and the like. From the viewpoint of rapid drying, ethanol is preferred; from the viewpoint of environmental protection, water is preferred.
Further, the hot melt adhesive for stones further comprises 8-15 parts, preferably 8-10 parts of an organic binder; the step of S02 includes:
s02-1, adding a dispersion medium into a mixing kettle with a stirring device, and starting stirring;
s02-2, adding the organic adhesive into the mixing kettle to dissolve or disperse the organic adhesive.
Preferably, the dispersion medium is selected from water, and the organic binder is selected from one or more of polyvinyl alcohol, polyethylene glycol and polyvinylpyrrolidone.
The invention further provides the application of the hot-melt adhesive for stone on stone bonding.
Further, the use may be achieved by:
s11, blowing the stone bonding surface to be bonded;
s12, applying the stone hot-melt adhesive to one surface of the stone binding surface according to the thickness of 1-2.5 cm;
s13, butting the two bonding surfaces of the stone material, so that the stone material is extruded between the two bonding surfaces by the hot-melt adhesive;
and S14, igniting the stone material hot melt adhesive, and cooling to obtain the stone material.
The invention has the beneficial effects that:
1. the provided hot melt adhesive for stone has good bonding effect, is convenient and simple to use, and does not need to carry out special treatment on the bonding surface of the stone.
2. The adhesive has high bonding speed, convenient and safe operation, and can be used for bonding and repairing cracks or damages.
3. The preparation method of the hot-melt adhesive for the stone is simple, and the product is easy to store and transport.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Preparing raw materials according to the following formula:
preparing a 5L mixing kettle with a stirring device, adding 1L ethanol, starting stirring, adding the above raw materials, mixing at 100rpm for 30min, and filtering; and drying the filter cake at 100 ℃ for 30min to obtain the powdery hot melt adhesive for stone.
Example 2
Preparing raw materials according to the following formula:
preparing a 5L mixing kettle with a stirring device, adding 1L of purified water, starting stirring, adding 10g of polyethylene glycol-500 (Mn ═ 500), dissolving, adding the above raw materials, mixing at 150rpm for 30min, and filtering; drying the filter cake at 50 deg.C for 1h to obtain gel-like hot melt adhesive for stone.
Comparative example 1
Based on example 1, the amount of magnesium powder was adjusted to 50 parts, and the remainder was unchanged.
Comparative example 2
In addition to example 2, magnesium powder having an average particle size of 30 μm was used, and the remainder was unchanged.
Comparative example 3
Referring to example 3 of CN103409077B, a stone adhesive repair agent was prepared as comparative example 3.
Examples of the experiments
A square-sided prism-shaped marble sample strip having a length of 20cm, a square interface, and a side length of 1cm was prepared. Breaking off the glass at the middle position. And purging the cross section for later use.
The stone materials of examples 1 to 2 and comparative examples 1 to 2 were applied onto the cross section of the sample bar in a thickness of 1.5cm, and then the colloid was ignited by a snap-fire gun equipped with compressed butane, and was allowed to burn and cool.
The stone adhesive repair agent of comparative example 3 was applied on the cross section of the sample bar and left to stand for 24 hours.
The samples were tested for breaking strength using a DR-501B tensile tester, and the results are shown in Table 1.
TABLE 1
As can be seen from Table 1, the hot melt adhesive for stone material of the present invention can achieve a tensile strength of more than 0.8MPa, which is higher than 0.3MPa declared by CN103409077B, and is also higher than the corresponding national standard.
Both comparative example 1 and comparative example 2 caused the chipping of the sample strips during the burning of the hot melt adhesive for stone. Comparative example 1 adopts excessive magnesium powder, which causes excessive heat release of the adhesive during combustion and damages of the sample due to uneven heating; comparative example 2 using magnesium powder with too small a particle size, although it did not cause deflagration under the protection of organic binder (polyethylene glycol), the combustion was still too vigorous, again resulting in the sample bar being cracked due to uneven heating.
Comparative example 3 exhibited a lower breaking strength, mainly because the sample strip was not subjected to the necessary surface treatment according to example 3 thereof. On the other hand, in the embodiments 1 to 2, the expected bonding strength can be obtained without surface treatment, which proves that the hot-melt adhesive for stone of the present invention is limited in usability.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (3)
1. A binder for stone, comprising:
the average grain diameter of the magnesium powder is 60-78 mu m; the average grain diameter of the aluminum powder is 8-8.5 mu m; the average particle size of the iron oxide powder is 50-60 mu m; the average particle size of the silicon dioxide powder and the calcium carbonate powder is 120-150 mu m;
the preparation method of the binder for the stone comprises the following steps:
s01, preparing raw materials according to the formula;
s02, adding a dispersion medium into a mixing kettle with a stirring device, and starting stirring;
s03, adding the raw materials under stirring and mixing;
s04, filtering, collecting a filter cake, and drying to obtain the stone binder;
the use of the stone binder for stone bonding comprises the following steps:
s11, blowing the stone bonding surface to be bonded;
s12, applying the stone binder to one surface of the stone binding surface according to the thickness of 1-2.5 cm;
s13, butting the two bonding surfaces of the stone, so that the stone is extruded between the two bonding surfaces by the adhesive;
and S14, igniting the colloid by using a buckle flame gun provided with compressed butane, and cooling to obtain the flame-retardant rubber.
2. The binder for stone as claimed in claim 1, further comprising 8 to 10 parts of an organic binder.
3. The binder for stone as claimed in claim 1, further comprising 8-10 parts of an organic binder; the step of S02 includes: s02-1, adding a dispersion medium into a mixing kettle with a stirring device, and starting stirring;
s02-2, adding the organic adhesive into the mixing kettle to dissolve or disperse the organic adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711202020.7A CN108003796B (en) | 2017-11-27 | 2017-11-27 | Hot-melt adhesive for stone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711202020.7A CN108003796B (en) | 2017-11-27 | 2017-11-27 | Hot-melt adhesive for stone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108003796A CN108003796A (en) | 2018-05-08 |
| CN108003796B true CN108003796B (en) | 2020-12-15 |
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| CN201711202020.7A Active CN108003796B (en) | 2017-11-27 | 2017-11-27 | Hot-melt adhesive for stone |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4030549A (en) * | 1976-01-26 | 1977-06-21 | Cities Service Company | Recovery of geothermal energy |
| HU195753B (en) * | 1985-07-15 | 1988-07-28 | Franz Dakay | Process for producing noble artificial stone shaped bodys and platelike products containing polyester binding material |
| CN1145389A (en) * | 1996-04-08 | 1997-03-19 | 淄博希凯建材有限公司 | Method for prepn. of high quality stone material binder |
| CN1541778A (en) * | 2003-11-07 | 2004-11-03 | 西安交通大学 | Manufacturing method of composite nozzle with ceramic lining |
| CN101704171B (en) * | 2009-09-18 | 2011-07-20 | 江阴东大新材料研究院 | surfacing-welding method for restoring ceramic composite steel pipe using ceramic surfacing electrode |
| CN103409077B (en) * | 2013-08-26 | 2014-06-04 | 河北省建筑科学研究院 | Stone bonding repairing agent |
-
2017
- 2017-11-27 CN CN201711202020.7A patent/CN108003796B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108003796A (en) | 2018-05-08 |
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Effective date of registration: 20240520 Address after: 250408 North side of National Highway 220, Ancheng Township, Pingyin County, Jinan City, Shandong Province, China Patentee after: Jinan Drake sealing material Co.,Ltd. Country or region after: China Address before: 11-1-2301, Jinyuan Xintiandi, No. 1269, Binhong East Road, Jindong District, Jinhua City, Zhejiang Province, 321015 Patentee before: Ma Shuangbin Country or region before: China |