CN105622165A - Artificial stone rough block curing process - Google Patents
Artificial stone rough block curing process Download PDFInfo
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- CN105622165A CN105622165A CN201410629315.2A CN201410629315A CN105622165A CN 105622165 A CN105622165 A CN 105622165A CN 201410629315 A CN201410629315 A CN 201410629315A CN 105622165 A CN105622165 A CN 105622165A
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Abstract
The present invention discloses an artificial stone rough block curing process, which artificial stone rough block is subjected to spraying curing treatment by using a liquid medium with a temperature of higher than a normal temperature after pressing and before cutting, and then normal temperature curing is performed. According to the present invention, the pressed artificial stone rough block is cured, the traditional normal temperature curing way is changed, the way sequentially comprising heating curing through the spraying of the liquid medium with the temperature of higher than the normal temperature and the normal temperature curing is used, and through the spraying heating curing process, the reaction of the unsaturated polyester resin can be complete, the relatively stable product performance can be achieved on the original basis, and the quality problems of internal cracking, easy product deformation generation, easy product warping generation and the like of the artificial stone rough block can be reduced.
Description
Technical field
The present invention relates to artificial stone technical field, specifically a kind of raw artificial stone maintaining process.
Background technology
In prior art, the product on resinoid bond type artificial stone market has two big classes, respectively using quartz powder and marble powder as main stuffing, and the former commodity quartz by name, the latter's commodity hilllock by name stone; Additionally, actually there is also the product that both main stuffing suitably blend each other, under most occasions, it is the quartz sand mixing filler weight 10%��20% in stone kind on duty. No matter which kind of above-mentioned artificial stone, it is all unsaturated polyester resin that filler is bonded as an integrally-built binding agent.
Due to traditional unsaturated polyester resin as binding agent, to have thermal arrest on the low side, the defect that the coefficient of expansion is bigger, so being added with the waste material that this binding agent is formed, after compacting, maintenance, opening Jie, unsaturated polyester resin is not still reacted fully in artificial stone, making resin contained in raw artificial stone unstable, also there is cracking phenomena in the waste material of part; After opening Jie, owing to resin is not reacted fully, causing the big plate of artificial stone yielding, after paving process and paving, there is warpage in various degree, deformation in floor.
As can be seen here, how avoiding the deformation of artificial stone, this is that those skilled in the art are presently required and solve the technical problem that.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of raw artificial stone maintaining process, the artificial stone prepared can be made to be unlikely to deform.
For solving above-mentioned technical problem, the technical scheme is that
A kind of raw artificial stone maintaining process, by raw artificial stone after pressing, open Jie before carry out spray solidification process with the liquid medium higher than room temperature, then carry out room temperature maintenance.
Preferably, when described spray solidification processes, the temperature of liquid medium is 60 DEG C��99 DEG C.
Preferably, the time that described spray solidification processes is 3 hours��48 hours.
Preferably, after compacting completes, at once the mould with raw artificial stone is placed in spray column and carries out spray solidification process.
Preferably, described liquid medium is water or aqueous solution or oil.
Preferably, the time of described room temperature maintenance is 3 days��15 days.
Preferably, the raw material that described raw artificial stone is used when preparing includes building stones, as the unsaturated polyester resin of binding agent and as modifying agent, unsaturated polyester resin is implemented modified alkaline earth oxide and/or alkaline earth metal hydroxide.
Preferably, described alkaline-earth metal is Mg and/or Ca.
Preferably, described modifying agent content in described raw material is: account for the 0.1%��18.61% of unsaturated polyester resin weight.
Preferably, described raw material is made up of main body base material and auxiliary agent, and described main body base material is made up of the building stones that percentage by weight is 75%��94.5% and unsaturated polyester resin that percentage by weight is 5.5%��25%; Described auxiliary agent include accounting for firming agent that described unsaturated polyester resin percentage by weight is 0.3%��3.0%, 0.03%��3.0% accelerator, 0.1%��18.61% modifying agent.
Preferably, described modifying agent is magnesium oxide, accounts for the 0.1%��7% of unsaturated polyester resin weight.
Preferably, described modifying agent is magnesium hydroxide, accounts for the 0.14%��10.13% of unsaturated polyester resin weight.
Preferably, described modifying agent is calcium oxide, accounts for the 0.14%��9.74% of unsaturated polyester resin weight.
Preferably, described modifying agent is calcium hydroxide, accounts for the 0.27%��18.61% of unsaturated polyester resin weight.
Compared with prior art, due to the fact that and the raw artificial stone after compacting is carried out maintenance, change traditional room temperature maintenance method, but by first being heated solidifying with liquid medium spray, again by the mode of room temperature maintenance, through the maintaining process that this spray is heating and curing, can make to react comparatively abundant as the unsaturated polyester resin of binding agent, original basis reaches relatively stable properties of product, making waste material reduce internal cleavage, product is not likely to produce the quality problems such as deformation, warpage;
Further, for adopting unsaturated polyester resin to add the raw artificial stone that modifying agent prepares, after adopting the maintaining process of the present invention, it is possible to reach better properties of product effect so that raw artificial stone occurs without internal cleavage, sheet material occurs without the quality problems such as deformation, warpage.
Accompanying drawing explanation
Fig. 1 is the spray structure schematic diagram used by raw artificial stone maintaining process of the present invention.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below by specific embodiment, the present invention is described in further detail.
Referring to Fig. 1, the flow process of the raw artificial stone maintaining process of the present invention is as follows:
1, raw artificial stone is suppressed under vacuum;
2, the raw artificial stone after compacting is placed on spray region and is heated solidification;
Particularly as follows: shower nozzle 1 sprays hot water 2, the raw artificial stone 4 that hot water 2 is opposite in mould 3 sprays, and the time is 3 hours��48 hours, and the temperature of hot water is: 60 DEG C��99 DEG C;
After spray, the warm water overflowed is recycled, is heated to predetermined temperature, then sprays in raw artificial stone mould, recycle in cistern 5;
3, maintenance again under room temperature state;
Raw artificial stone after being heating and curing being proceeded room temperature maintenance, namely stands under room temperature, the time is 3 days��15 days;
4, then by raw artificial stone demoulding, after demoulding, raw artificial stone cuts (opening Jie), sanding and polishing through gang saw, go-on-go is packed.
A kind of raw artificial stone maintaining process of the present invention, it is applied to traditional raw artificial stone, unsaturated polyester resin reaction in raw artificial stone can also be made comparatively abundant, original basis reaches relatively stable properties of product, such as: raw artificial stone reduces internal cleavage, product and the quality problems such as deformation, warpage not easily occurs;
A kind of raw artificial stone maintaining process of the present invention, also apply be applicable to add the raw artificial stone that unsaturated polyester resin is modified by modifying agent, better properties of product effect can be reached, such as: raw artificial stone occurs without internal cleavage, sheet material occurs without the quality problems such as deformation, warpage.
Specifically, the raw artificial stone that unsaturated polyester resin is modified by this interpolation modifying agent, raw materials used building stones, the unsaturated polyester resin as binding agent of including, unsaturated polyester resin is implemented the modified alkaline earth oxide to reduce coefficient of expansion ��, simultaneously raising thermal arrest Tt and/or alkaline earth metal hydroxide as modifying agent by raw materials used also including.
Wherein, the modifying function in described alkaline earth oxide and alkaline earth metal hydroxide is the residual carboxylate radical generation saponification with unsaturated polyester resin, and described alkaline-earth metal is Mg and/or Ca; The concentration range of described oxide and hydroxide thereof is: the order pure unsaturated polyester resin slurry weight without firming agent and accelerator is 100g, with the MgO weight counted for magnesium oxide by the conversion of mole proportionate relationship for 0.1g��7g; That is, for modifying agent MgO, CaO, Ca (OH)2With Mg (OH)2No matter any, the MgO weight as corresponding after above-mentioned conversion is 0.1g��7g. Such as certain occasion proportioning is Ca (OH)2: 52.6g/440g virgin resin serosity, corresponding to the pure unsaturated polyester resin serosity of MgO:6.5g/100g after converting such as said method. Modifier concentration is big nonsensical again, due to the fact that the residual carboxylate radical concentration of unsaturated polyester resin is limited, in the scope of the pure unsaturated polyester resin serosity of above-mentioned MgO0.1g��7g/100g, the MgO role in quite big interval is in that, only it is to speed up response speed and promotes described saponification as far as possible close to terminal, also tending to fully saponification by residual carboxylate radical and consume.
As it has been described above, the principles of chemistry that the present invention modifiies are in that, described residual carboxylate radical is by alkaline-earth metal, that is the oxide of Mg and/or Ca and/or hydroxide saponification generate corresponding salt; A) for alkaline-earth metal Mg, MgO and/or Mg (OH)2No matter each individually or described saponification can occur in the two mixing use, then result also just all has so that described unsaturated polyester resin finally obtains the modified effect that the while that the coefficient of expansion significantly reducing, thermal arrest Tt significantly raises; B) in like manner substitute A with alkaline-earth metal Ca) described in element, Mg in oxide and/or hydroxide, also still can there is described saponification and finally obtain coefficient of expansion �� to described unsaturated polyester resin and significantly reduce the modified effect that thermal arrest Tt significantly raises simultaneously; C) owing to the respective oxide of alkaline-earth metal Mg and/or Ca and/or hydroxide alkalescence are much like, then the respective oxide of above-mentioned Mg and/or Ca and/or hydroxide kind amount up to four kinds, no matter these four is each used alone, still it is combined into mutually the compositions containing two kinds, three kinds or four kinds of above-claimed cpds to use, described resin can finally obtain coefficient of expansion �� and significantly reduce the modified effect that thermal arrest Tt significantly raises simultaneously, and concrete condition is referring to related embodiment. D) for above-mentioned C) in " compositionss containing two kinds, three kinds or four kinds of above-claimed cpds " talked about, each of which kind compound is MgO each through mole conversion, and each the corresponding MgO after so obtained conversion always adds resultant all in the scope of 0.1g��7g/100g unsaturated polyester resin.
The preparation method of the raw artificial stone of aforesaid interpolation modifying agent comprises the steps:
Unsaturated polyester resin as binding agent is mixed with building stones with after curative systems stirring again, then the artificial stone pug obtained inserts die for molding, and blending in described artificial stone pug has the alkaline earth oxide as modifying agent and/or alkaline earth metal hydroxide.
Specifically include following steps:
1) by unsaturated polyester resin and curative systems stirring;
2) graded stuffing building stones stirring;
3) by step 1), step 2) the material mix and blend that each obtains, form artificial stone pug;
4) by step 3) the artificial stone pug cloth that obtains expects in mould;
5) artificial stone pug is in a mold through vacuum vibration die mould, forms raw artificial stone;
Wherein, the addition manner of the modifying agent of described alkaline earth oxide or hydroxide form has two kinds, one is: in step 1) in be doped in the stirring mixed serum after the stirring of unsaturated polyester resin and curative systems, it two is: in step 2) in be doped among graded stuffing building stones stirring thing, each of which all can reach the effect above of the present invention.
Wherein, described alkaline-earth metal is Mg and/or Ca. That is, the modifying agent in the present invention is any one or two or more mixture in magnesium oxide, calcium oxide, magnesium hydroxide, calcium hydroxide.
Inorganic filler building stones (marble, quartz) in the artificial stone of the present invention under the temperature conditions that above-mentioned preparation process experiences are inertia all the time and keep intrinsic property, this artificial stone neutrality mass-energy is altered just as the unsaturated polyester resin of binding agent, above-mentioned modified the coefficient of expansion �� of unsaturated polyester resin is reduced, thermal arrest Tt raising.
In machinery used by process above flow process, pug blender can be selected for suitable machinery on the market, but may also preferably be cement mortar mixer, and concrete cement mortar mixer structure and function are prior art, repeat no more herein. Vacuum vibration forming press used during vacuum vibration die mould can be selected for machinery suitable in prior art, it also may be preferable for for artificial stone plate press, concrete artificial stone plate press is prior art, repeats no more herein.
Below according to the flow process shown in Fig. 1, further describe the present invention by specific embodiment.
Embodiment one
Raw artificial stone maintaining process in the present embodiment comprises the steps:
1, raw artificial stone is vibrated under vacuum compressing;
2, the raw artificial stone after compacting is placed on spray region and is heated solidification;
Particularly as follows: raw artificial stone is sprayed with hot water, the time is 3 hours, and the temperature of hot water is 99 DEG C;
After spray, the warm water overflowed in cistern is recycled, be heated to predetermined temperature, then spray is in famine material mould, recycles;
3, maintenance again under room temperature state;
Raw artificial stone after being heating and curing being proceeded room temperature maintenance, namely stands under room temperature, the time is 15 days;
4, then by raw artificial stone demoulding, after demoulding, raw artificial stone cuts (opening Jie), sanding and polishing through gang saw, go-on-go is packed.
What the present embodiment was applied is traditional raw artificial stone, i.e. raw artificial stone of the prior art.
Embodiment two
Raw artificial stone maintaining process in the present embodiment comprises the steps:
1, raw artificial stone is vibrated under vacuum compressing;
2, the raw artificial stone after compacting is placed on spray region and is heated solidification;
Specifically: with hot water, raw artificial stone is sprayed, the time is 15 hours, and the temperature of hot water is 90 DEG C;
After spray, the warm water overflowed is recycled, is heated to predetermined temperature, then sprays in raw artificial stone mould, recycle in cistern;
3, maintenance again under room temperature state;
Raw artificial stone after being heating and curing being proceeded room temperature maintenance, namely stands under room temperature, the time is 8 days;
4, then by raw artificial stone demoulding, after demoulding, raw artificial stone cuts (opening Jie), sanding and polishing through gang saw, go-on-go is packed.
What the present embodiment was applied is traditional raw artificial stone, i.e. raw artificial stone of the prior art.
Embodiment three
Raw artificial stone maintaining process in the present embodiment comprises the steps:
1, raw artificial stone is vibrated under vacuum compressing;
2, the raw artificial stone after compacting is placed on spray region and is heated solidification;
Specifically: with hot water, raw artificial stone is sprayed, the time is 48 hours, and the temperature of hot water is 60 DEG C;
After spray, the warm water overflowed is recycled, is heated to predetermined temperature, then sprays in raw artificial stone mould, recycle in cistern;
3, maintenance again under room temperature state
Raw artificial stone after being heating and curing being proceeded room temperature maintenance, namely stands under room temperature, the time is 15 days;
4, then by raw artificial stone demoulding, after demoulding, raw artificial stone cuts (opening Jie), sanding and polishing through gang saw, go-on-go is packed.
What the present embodiment was applied is traditional raw artificial stone, i.e. raw artificial stone of the prior art.
Embodiment four
Raw artificial stone maintaining process in the present embodiment comprises the steps:
1, raw artificial stone is vibrated under vacuum compressing;
2, the raw artificial stone after compacting is placed on spray region and is heated solidification;
Specifically: with hot water, raw artificial stone is sprayed, the time is 24 hours, and the temperature of hot water is 80 DEG C;
After spray, the warm water overflowed is recycled, is heated to predetermined temperature, then sprays in raw artificial stone mould, recycle in cistern;
3, maintenance again under room temperature state;
Raw artificial stone after being heating and curing being proceeded room temperature maintenance, namely stands under room temperature, the time is 12 days;
4, then by raw artificial stone demoulding, after demoulding, raw artificial stone cuts (opening Jie), sanding and polishing through gang saw, go-on-go is packed.
What the present embodiment was applied is modified raw artificial stone, and this raw artificial stone is made up of the raw material in table 1 below:
What table 1 provided is the white artificial stone formula with typicality. In table 1, each raw material can be selected for existing convenient source on the market.
In the present embodiment, methyl ethyl ketone peroxide selected by firming agent, in other embodiments, it is possible to select other kinds of firming agent, how to select firming agent, and this is ordinary skill in the art means, repeats no more herein.
In the present embodiment, accelerator selects cobalt naphthenate, in other embodiments, it is possible to select other kinds of accelerator; How selecting accelerator, this is ordinary skill in the art means, repeats no more herein.
In the present embodiment, the preparation section of raw artificial stone is as follows:
1) various raw material has been weighed according to the formula of table 1,3. unsaturated polyester resin is contained in 1000ml plastic beaker, 5. accelerator cobalt naphthenate is joined in beakers, stir 15 seconds, add firming agent methyl ethyl ketone peroxide 4. again immediately, after stirring 1 minute, modifying agent MgO powder is added into, more continuously stirred 3 minutes, unsaturated polyester resin, curative systems, modifying agent three's homogenizing serosity; So while completing the stirring of unsaturated polyester resin and firming agent, accelerator, also achieve the modifying agent MgO purpose joining in resin grout liquid;
2) 1. 100 order marble powders are charged first in a mixing bowl, then add 400 order marble powders 2., stir 5 minutes;
3) by step 1) unsaturated polyester resin that obtains, curative systems, modifying agent three's homogenizing serosity be poured into from plastic beaker and be loaded with step 2) in a mixing bowl of grating stone powder that obtains, more continuously stirred 5 minutes, obtain artificial stone pug;
4) each inner surface of compacting tool set groove complete take precautions against bonding kraft paper, with by artificial stone pug toward uniform distribution in mould, smooth pug surface, finally cover lid layer kraft paper again at pug end face;
5) mould of good for cloth artificial stone pug is loaded onto vacuum vibration forming press through vacuum vibration die mould, reach vacuum degassing abundant densifying effects, finally obtain raw artificial stone.
Embodiment five
Preparation method relative to the raw artificial stone of aforesaid interpolation modifying agent, with embodiment four the difference is that: in embodiment four, the addition of modifying agent MgO powder is in step 1) in carry out, in the present embodiment then by MgO powder in step 2) in add, that is, modifying agent MgO is added so that it is be uniformly distributed in the grating stone powder of gained before graded stuffing stone powder stirs or during stirring;
Raw artificial stone maintaining process in the present embodiment comprises the steps:
1, raw artificial stone is vibrated under vacuum compressing;
2, the raw artificial stone after compacting is placed on spray region and is heated solidification;
Particularly as follows: raw artificial stone is sprayed with hot water, the time is 18 hours, and the temperature of hot water is 70 DEG C;
After spray, the warm water overflowed is recycled, is heated to predetermined temperature, then sprays in raw artificial stone mould, recycle in cistern;
3, maintenance again under room temperature state;
Raw artificial stone after being heating and curing being proceeded room temperature maintenance, namely stands under room temperature, the time is 6 days;
4, then by raw artificial stone demoulding, after demoulding, raw artificial stone cuts (opening Jie), sanding and polishing through gang saw, go-on-go is packed.
In the present embodiment, the consumption of the modifying agent MgO in formula table is 2.2g, accounts for the 0.5% of unsaturated polyester resin weight.
All the other are all identical with embodiment four, repeat no more herein.
Embodiment six
With embodiment four the difference is that, in the present embodiment:
Step 2) in, when carrying out described " mode of spray is heated solidifying ", process conditions are: continue 7h at the temperature of 66 DEG C;
Step 3) in, maintenance again under room temperature state, namely stand under room temperature, the time is 9 days;
Modifying agent MgO consumption in formula table 1 is 30.8g, accounts for the 7% of unsaturated polyester resin weight.
All the other are all identical with embodiment four, repeat no more herein.
Embodiment seven
With embodiment four the difference is that, in the present embodiment:
Step 2) in, when carrying out described " mode of spray is heated solidifying ", process conditions are: continue 40h at the temperature of 99 DEG C;
Step 3) in, maintenance again under room temperature state, namely stand under room temperature, the time is 3 days;
Step 1) in the consumption of modifying agent MgO in citation formula table 1 be 19.8g, account for the 4.5% of unsaturated polyester resin weight.
All the other are all identical with embodiment four, repeat no more herein.
Embodiment eight
With embodiment four the difference is that, in the present embodiment:
Step 2) in, when carrying out described " mode of spray is heated solidifying ", process conditions are: continue 36h at the temperature of 78 DEG C;
Step 3) in, maintenance again under room temperature state, namely stand under room temperature, the time is 11 days;
Step 1) in the consumption of modifying agent MgO in citation formula table 1 be 28.6g, account for the 6.5% of unsaturated polyester resin weight.
All the other are all identical with embodiment four, repeat no more herein.
Embodiment nine
With embodiment four the difference is that, in the present embodiment:
Step 2) in, when carrying out described " mode of spray is heated solidifying ", process conditions are: continue 29h at the temperature of 85 DEG C;
Step 3) in, maintenance again under room temperature state, namely stand under room temperature, the time is 7 days;
Modifying agent in recited formula table 1 is Mg (OH)2, its consumption is 12.8g, accounts for the 2.9% of unsaturated polyester resin weight.
All the other are all identical with embodiment four, repeat no more herein.
Embodiment ten
With embodiment four the difference is that, in the present embodiment:
Step 2) in, when carrying out described " mode of spray is heated solidifying ", process conditions are: continue 12h at the temperature of 95 DEG C;
Step 3) in, maintenance again under room temperature state, namely stand under room temperature, the time is 5 days;
Step 1) modifying agent in recited formula table 1 is Mg (OH)2, consumption is 31.7g, accounts for the 7.2% of unsaturated polyester resin weight.
All the other are all identical with embodiment four, repeat no more herein.
Embodiment 11
With embodiment four the difference is that, in the present embodiment:
Modifying agent in recited formula table 1 adopts CaO, and consumption is 6.1g, accounts for the 1.4% of unsaturated polyester resin weight;
Modifying agent CaO powder is in step 2) middle heating addition, that is, interpolation modifying agent CaO before graded stuffing building stones stir or during stirring so that it is be uniformly distributed in the grating building stones of gained;
Step 2) in, when carrying out described " mode of spray is heated solidifying ", process conditions are: continue 33h at the temperature of 75 DEG C;
Step 3) in, maintenance again under room temperature state, namely stand under room temperature, the time is 14 days;
All the other are all identical with embodiment four, repeat no more herein.
Embodiment 12
With embodiment four the difference is that, in the present embodiment:
Modifying agent in recited formula table 1 adopts the binary composition of CaO and MgO, and CaO consumption is 9.68g, accounts for the 2.2% of unsaturated polyester resin weight, corresponds to the MgO of account for unsaturated polyester resin weight 1.58% by mole after converting; MgO consumption is 10.56g, accounts for the 2.4% of unsaturated polyester resin weight; This binary combination modifying agent corresponds to, after converting according to mole, the MgO accounting for unsaturated polyester resin weight 3.98%.
Step 1) in, replace the MgO in embodiment one with the binary composition of described CaO and MgO.
Step 2) in, when carrying out described " mode of spray is heated solidifying ", process conditions are: continue 11h at the temperature of 68 DEG C;
Step 3) in, maintenance again under room temperature state, namely stand under room temperature, the time is 13 days;
All the other are all identical with embodiment four, repeat no more herein.
Embodiment 13
With embodiment four the difference is that, in the present embodiment:
Modifying agent in recited formula table 1 adopts Mg (OH)2, CaO and Ca (OH) 2 ternary composition, Mg (OH)2Consumption 11.0g, accounts for the 2.5% of unsaturated polyester resin weight, and after converting by mole, correspondence accounts for the MgO of the 1.73% of unsaturated polyester resin weight; CaO consumption is 9.24g, accounts for the 2.1% of unsaturated polyester resin weight, the corresponding MgO accounting for unsaturated polyester resin weight 1.51% after converting by mole; Ca (OH)2Consumption is 14.08g, accounts for the 3.2% of unsaturated polyester resin weight, the corresponding MgO accounting for unsaturated polyester resin weight 1.74% after converting by mole; This triple combination modifying agent is equivalent to account for the MgO of unsaturated polyester resin weight 4.98% after converting according to mole.
In step 1) in, without modifying agent, corresponding change sees below.
In step 2) the described Mg of middle addition (OH)2, CaO and Ca (OH)2Triple combination modifying agent powder, that is, add described ternary modifying agent powder before graded stuffing stone powder stirs or during stirring so that it is be uniformly distributed in the grating stone powder of gained.
Step 2) in, when carrying out described " mode of spray is heated solidifying ", process conditions are: continue 27h at the temperature of 93 DEG C;
Step 3) in, maintenance again under room temperature state, namely stand under room temperature, the time is 4 days;
All the other are all identical with embodiment four, repeat no more herein.
Embodiment 14
With embodiment four the difference is that, in the present embodiment:
Modifying agent in recited formula table 1 adopts MgO, Mg (OH)2, CaO and Ca (OH)2Four-tuple compound, MgO consumption is 11.0g, accounts for the 2.5% of unsaturated polyester resin weight; Mg (OH)2Consumption is 7.92g, accounts for the 1.8% of unsaturated polyester resin weight, the corresponding MgO accounting for unsaturated polyester resin weight 1.24% after converting by mole; CaO consumption is 7.04g, accounts for the 1.6% of unsaturated polyester resin weight, and after converting by mole, correspondence accounts for the MgO of the 1.15% of unsaturated polyester resin weight; Ca (O)2Consumption is 12.76g, accounts for the 2.9% of unsaturated polyester resin weight, and after converting by mole, correspondence accounts for the MgO of the 1.58% of unsaturated polyester resin weight; This four-place combination modifying agent is equivalent to account for the MgO of unsaturated polyester resin weight 6.47% after converting according to mole.
Step 1) in, with described MgO, Mg (OH)2, CaO and Ca (OH)2Four-tuple compound replace the MgO in embodiment one.
Step 2) in, when carrying out described " mode of spray is heated solidifying ", process conditions are: continue 27h at the temperature of 93 DEG C;
Step 3) in, maintenance again under room temperature state, namely stand under room temperature, the time is 4 days;
All the other are all identical with embodiment four, repeat no more herein.
With embodiment four the difference is that, in the present embodiment:
Step 1) in, the modifying agent in recited formula table 1 is Ca (OH)2, consumption is 16.2g, accounts for the 3.7% of unsaturated polyester resin weight;
This Ca (OH)2Powder is in step 2) middle addition, that is, step 2) in, after obtaining the graded stuffing building stones of homogenizing, add this Ca (OH)2Modifying agent;
Step 2) in, when carrying out described " mode of spray is heated solidifying ", process conditions are: continue 45h at the temperature of 82 DEG C;
Step 3) in, maintenance again under room temperature state, namely stand under room temperature, the time is 14 days; All the other are all identical with embodiment one, repeat no more herein.
Reference examples one
With previous embodiment one the difference is that, the raw artificial stone in this reference examples, the technique only carrying out room temperature maintenance after adopting compacting, all the other are all identical with embodiment one, repeat no more herein.
Reference examples two
With previous embodiment four the difference is that, the raw artificial stone in this reference examples, the technique only carrying out room temperature maintenance after adopting compacting, and its formula is the formula in aforementioned table 1.
All the other are all identical with embodiment four, repeat no more herein.
The thermal arrest Tt and linear expansion coefficient �� (30 DEG C-60 DEG C) of artificial stone above example one��14 obtained contrasts with artificial stone sample in reference examples one, two, and result is referring to table 2 below.
The contrast of the artificial stone that artificial stone thermal arrest Tt that table 2 embodiment of the present invention obtains and linear expansion coefficient �� (30 DEG C-60 DEG C) and reference examples obtain
By the data of upper table it can be seen that compared with reference examples, the artificial stone that maintaining process of the present invention prepares, thermal arrest Tt significantly improves and linear expansion coefficient �� significantly reduces.
It is pointed out that in above example, although the liquid medium of spray is all water, but actually, the aqueous solution or the oil that have blended additive can realize the purpose of the present invention, as long as namely have the liquid of uniform temperature, can serve as the liquid medium of spray.
Additionally, it is also pointed out that, the building stones mentioned in the present invention refer to stone powder or rubble or the mixture of the two.
Below being only the preferred embodiment of the present invention, it is noted that above-mentioned preferred implementation is not construed as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range. For those skilled in the art, without departing from the spirit and scope of the present invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a raw artificial stone maintaining process, it is characterised in that by raw artificial stone after pressing, open Jie before carry out spray solidification process with the liquid medium higher than room temperature, then carry out room temperature maintenance.
2. raw artificial stone maintaining process as claimed in claim 1, it is characterised in that when described spray solidification processes, the temperature of liquid medium is 60 DEG C��99 DEG C.
3. raw artificial stone maintaining process as claimed in claim 1, it is characterised in that the time that described spray solidification processes is 3 hours��48 hours.
4. raw artificial stone maintaining process as claimed in claim 1, it is characterised in that after compacting completes, at once the mould with raw artificial stone is placed in spray column and carries out spray solidification process.
5. raw artificial stone maintaining process as claimed in claim 1, it is characterised in that described liquid medium is water or aqueous solution or oil.
6. raw artificial stone maintaining process as claimed in claim 1, it is characterised in that the time of described room temperature maintenance is 3 days��15 days.
7. raw artificial stone maintaining process as claimed in claim 1, it is characterized in that, described raw artificial stone raw material used when preparing includes building stones, as the unsaturated polyester resin of binding agent and as modifying agent, unsaturated polyester resin is implemented modified alkaline earth oxide and/or alkaline earth metal hydroxide.
8. raw artificial stone maintaining process as claimed in claim 7, it is characterised in that described alkaline-earth metal is Mg and/or Ca.
9. raw artificial stone maintaining process as claimed in claim 7, it is characterised in that described modifying agent content in described raw material is: account for the 0.1%��18.61% of unsaturated polyester resin weight.
10. raw artificial stone maintaining process as claimed in claim 7, it is characterized in that, described raw material is made up of main body base material and auxiliary agent, and described main body base material is made up of the building stones that percentage by weight is 75%��94.5% and unsaturated polyester resin that percentage by weight is 5.5%��25%; Described auxiliary agent include accounting for firming agent that described unsaturated polyester resin percentage by weight is 0.3%��3.0%, 0.03%��3.0% accelerator, 0.1%��18.61% modifying agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629315.2A CN105622165A (en) | 2014-11-07 | 2014-11-07 | Artificial stone rough block curing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629315.2A CN105622165A (en) | 2014-11-07 | 2014-11-07 | Artificial stone rough block curing process |
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| CN105622165A true CN105622165A (en) | 2016-06-01 |
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| CN201410629315.2A Pending CN105622165A (en) | 2014-11-07 | 2014-11-07 | Artificial stone rough block curing process |
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Citations (4)
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| CN101486218A (en) * | 2008-01-14 | 2009-07-22 | 天津市河东区盛隆化工厂 | Method for producing natural stone-imitating pattern artificial stone product |
| CN101671135A (en) * | 2009-09-25 | 2010-03-17 | 武汉理工大学 | Curing method of industrial waste gypsum |
| CN101913806A (en) * | 2010-07-26 | 2010-12-15 | 刘龙诚 | Cement-based artificial stone and production process thereof |
| CN103408252A (en) * | 2013-07-29 | 2013-11-27 | 广东中旗新材料科技有限公司 | High-impact toughness man-made quartzite slab and preparation method thereof |
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| CN101486218A (en) * | 2008-01-14 | 2009-07-22 | 天津市河东区盛隆化工厂 | Method for producing natural stone-imitating pattern artificial stone product |
| CN101671135A (en) * | 2009-09-25 | 2010-03-17 | 武汉理工大学 | Curing method of industrial waste gypsum |
| CN101913806A (en) * | 2010-07-26 | 2010-12-15 | 刘龙诚 | Cement-based artificial stone and production process thereof |
| CN103408252A (en) * | 2013-07-29 | 2013-11-27 | 广东中旗新材料科技有限公司 | High-impact toughness man-made quartzite slab and preparation method thereof |
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