CN102815890A - Method for producing artificial stones with low resin content - Google Patents
Method for producing artificial stones with low resin content Download PDFInfo
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- CN102815890A CN102815890A CN 201110155236 CN201110155236A CN102815890A CN 102815890 A CN102815890 A CN 102815890A CN 201110155236 CN201110155236 CN 201110155236 CN 201110155236 A CN201110155236 A CN 201110155236A CN 102815890 A CN102815890 A CN 102815890A
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Abstract
The invention discloses a method for producing artificial stones with low resin content. The method includes the following steps: crushing crushed aggregates of natural stones to obtain natural stone granules in different size, and screening natural stone granules into large granules and small granules; mixing resin and curing agent; adding the mixed resin and curing agent into a mixer, adding the small granules of the natural stone granules into the mixer, stirring to form a small-granule mixture, and pouring the small-granule mixture into a mould; adding the mixed resin and curing agent into the mixer, adding the large granules of the natural stone granules into the mixer, stirring to form a large-granule mixture, and pouring the large-granule mixture into the mould to cover on the small-granule mixture; curing the small -granule mixture and the large-granule mixture; demoulding the curing formed mixture and polishing edges to form the artificial stone. Low amount of resin accounting for less than 5% of total mass of the artificial stone is utilized, surfaces of the artificial stone are covered by large granules of the natural stone granules, and hardness of the artificial stones is hardly different from that of natural stones.
Description
Technical field
The present invention relates to the rostone ME, relate in particular to a kind of making method of low resin content rostone.
Background technology
Rostone is a kind of novel composite material, is to mix with filler, pigment with resin, adds a small amount of initiator, processes through certain work program.In manufacturing processed, being equipped with different colorants can be made into and have the goods that beautiful in colour, gloss such as jade exactly like natural marble.Because of it has nontoxicity, "dead", flame retardant resistance, sticking oil, does not ooze dirt, antibacterial and mouldproof, wear-resisting, shock-resistant, be prone to maintenance, advantages such as splicing is seamless, any moulding, just progressively become the new lover on the finishing building materials market.
At present, resin type rostone market quality is uneven.Early stage product mainly is the fine particle product, and fine particle product not only fastness to rubbing is defective, and the amount of resin of using when producing is also big, ground is installed scratches easily, and after installation, arch camber, cracking phenomena emerge in an endless stream.Causes market to talk artificial stone and become, but natural stone is can not be in the production-goods source eventually that the research of qualified rostone is necessary.
Discover, cause that the rostone surface is prone to scratch, the major cause of arch camber, problems of crack is resin and the usage ratio of filler, pigment is incorrect.Perhaps because too high the causing of resin content stirs inequality.In the rostone matrix, resin should be able to make filler retention at uniform suspended state, up to resin gel.If it is bad that filler suspends in the rostone matrix, deposit to the bottom of casting matrix, can cause the difference of casting matrix upper and lower part filler distribution.Because the upper strata resin is many, during cure shrinkage heat release many, shrink big; Lower-layer resin is few, and heat release is few during curing, contraction is little, and the result causes the warpage or the cracking of goods.The resin usage quantity is excessive to cause that easily the suspension of rostone matrix is bad.Therefore, if can reduce resin demand, serve as the main rostone made from the stone material particle, should overcome above-mentioned defective.
Summary of the invention
The present invention is intended to propose the low resin content of a kind of making, and surface coverage has the rostone of macrobead stone material.
According to the present invention, a kind of making method of low resin content rostone is proposed, comprise following step:
The lithotome particle is pulverized, formed the lithotome particle that varies in size, the lithotome particle screen selecting is become macrobead and small-particle;
Resin and solidifying agent are mixed;
Mixed resin and solidifying agent are put into stirrer, add short grained lithotome particle and stir formation small-particle compound, the small-particle compound is poured in the mould;
Mixed resin and solidifying agent are put into stirrer, add oarse-grained lithotome particle and stir formation macrobead compound, the macrobead compound is poured in the mould, be covered in said small-particle compound top;
Solidify said small-particle compound and macrobead compound;
With the compound demoulding of curing molding, sharpened edge forms rostone.
In one embodiment, macrobead is meant the lithotome particle of diameter more than or equal to 0.5mm, and small-particle is meant the lithotome particle of diameter less than 0.5mm.
In one embodiment, resin is a unsaturated polyester resin, and such as phthalic acid-Ucar 35 type resin, and solidifying agent is a methylethyl ketone peroxide.
Also comprise when in one embodiment, resin and solidifying agent being mixed and add promotor.
In one embodiment, the lithotome particle screen selecting become macrobead and small-particle after, also in macrobead and short grained lithotome particle, add lime carbonate or aluminium-hydroxide powder.
In order to reduce the bubble in the compound, stirrer stirs the small-particle compound and the macrobead compound is under negative pressure state, to carry out.
Solidify small-particle compound and macrobead compound and comprise small-particle compound and macrobead compound are heated, such as being heated to 50 ℃-80 ℃.
In one embodiment, the macrobead compound is poured into waited at least 20 minutes behind the mould and begin again to solidify.
The amount of resin that the making method of low resin content rostone of the present invention is used is low, can be less than 5% of total mass, and simultaneously, the surface of rostone is covered by macrobead lithotome particle, and hardness is almost as broad as long with lithotome.Owing to reduced resin demand, reduced back arch camber, the rimose problem of installing.
Description of drawings
Fig. 1 has disclosed the schema according to the making method of the low resin content rostone of one embodiment of the invention.
Embodiment
With reference to shown in Figure 1, the present invention has disclosed a kind of making method of low resin content rostone, comprises following step:
S101. the lithotome particle is pulverized, formed the lithotome particle that varies in size, the lithotome particle screen selecting is become macrobead and small-particle.In one embodiment, macrobead is meant the lithotome particle of diameter more than or equal to 0.5mm, and small-particle is meant the lithotome particle of diameter less than 0.5mm.In certain embodiments, in order to obtain the rostone of different-effect, after the lithotome particle screen selecting is become macrobead and small-particle, also in macrobead and short grained lithotome particle, add lime carbonate or aluminium-hydroxide powder.Add calcium carbonate powders and form opaque rostone, form transparent rostone and add aluminium-hydroxide powder.
S102. resin and solidifying agent are mixed.In one embodiment, the resin of use is a unsaturated polyester resin, and such as phthalic acid-Ucar 35 type resin, the solidifying agent of use is a methylethyl ketone peroxide.Phthalic acid-Ucar 35 type resin satisfies 500 round-robin requirements of CMI (U.S. artificial marble association) heat shock resistance; Steam at zero(ppm) water that color remains unchanged basically under the 48 hours conditions of boiling; Anti-spending in vain; Resistance to blistering can be all better in certain embodiments, also comprises when resin and solidifying agent are mixed adding promotor.
S103. mixed resin and solidifying agent are put into stirrer, add short grained lithotome particle and stir formation small-particle compound, the small-particle compound is poured in the mould.
S104. mixed resin and solidifying agent are put into stirrer, add oarse-grained lithotome particle and stir formation macrobead compound, the macrobead compound is poured in the mould, be covered in small-particle compound top.
Step 103 and step 104 need operation in order, and like this, in the rostone of making, the macrobead lithotome can be positioned at the upper strata of rostone and the position on surface, helps improving the surface hardness of rostone.In one embodiment, stirrer stirring small-particle compound and macrobead compound are under negative pressure state, to carry out in step 103 and the step 104.The main purpose that under negative pressure state, stirs is the bubble that possibly exist in the compound in order to eliminate.Exist the major cause of bubble following in the compound: 1) the raw material water ratio exceeds normal index.2) in the whipping process air is brought into.3) ratio of resin and solidifying agent and/or initiator is improper, causes bubble in time to discharge.In the process that stirs, remain negative pressure state and can make compound keep boiling basically, the bubble that helps producing in chemical reaction and the whipping process is got rid of.
S105. solidify small-particle compound and macrobead compound.In one embodiment, solidify small-particle compound and macrobead compound and comprise small-particle compound and macrobead compound are heated, such as said small-particle compound and macrobead compound are heated to 50 ℃-80 ℃.Before being heating and curing, need to give small-particle compound and the certain shaping time of macrobead compound, in one embodiment, the macrobead compound poured into wait at least 20 minutes behind the mould and begin curing again.
S106. with the compound demoulding of curing molding, sharpened edge forms rostone.After sloughing mould,, just can form the product rostone to the modification of polishing of the edge of rostone.The surface of this rostone is formed by the macrobead lithotome, and ten minutes is near the performance of lithotome.
The amount of resin that the making method of low resin content rostone of the present invention is used is low, can be less than 5% of total mass, and simultaneously, the surface of rostone is covered by macrobead lithotome particle, and hardness is almost as broad as long with lithotome.Owing to reduced resin demand, reduced back arch camber, the rimose problem of installing.
Claims (10)
1. the making method of a low resin content rostone is characterized in that, comprising:
The lithotome particle is pulverized, formed the lithotome particle that varies in size, the lithotome particle screen selecting is become macrobead and small-particle;
Resin and solidifying agent are mixed;
Mixed resin and solidifying agent are put into stirrer, add short grained lithotome particle and stir formation small-particle compound, the small-particle compound is poured in the mould;
Mixed resin and solidifying agent are put into stirrer, add oarse-grained lithotome particle and stir formation macrobead compound, the macrobead compound is poured in the mould, be covered in said small-particle compound top;
Solidify said small-particle compound and macrobead compound;
With the compound demoulding of curing molding, sharpened edge forms rostone.
2. the making method of low resin content rostone as claimed in claim 1 is characterized in that, said macrobead is meant the lithotome particle of diameter more than or equal to 0.5mm, and small-particle is meant the lithotome particle of diameter less than 0.5mm.
3. the making method of low resin content rostone as claimed in claim 1 is characterized in that,
Said resin is a unsaturated polyester resin, and said solidifying agent is a methylethyl ketone peroxide.
4. the making method of low resin content rostone as claimed in claim 3 is characterized in that,
Said resin is phthalic acid-Ucar 35 type resin.
5. the making method of low resin content rostone as claimed in claim 3 is characterized in that,
Also comprise when resin and solidifying agent are mixed and add promotor.
6. the making method of low resin content rostone as claimed in claim 1; It is characterized in that; After the lithotome particle screen selecting become macrobead and small-particle, also in said macrobead and short grained lithotome particle, add lime carbonate or aluminium-hydroxide powder.
7. the making method of low resin content rostone as claimed in claim 1 is characterized in that,
Stirrer stirs the small-particle compound and the macrobead compound is under negative pressure state, to carry out.
8. the making method of low resin content rostone as claimed in claim 1 is characterized in that,
Solidifying said small-particle compound and macrobead compound comprises said small-particle compound and macrobead compound is heated.
9. the making method of low resin content rostone as claimed in claim 8 is characterized in that,
Solidifying said small-particle compound and macrobead compound comprises said small-particle compound and macrobead compound is heated to 50 ℃-80 ℃.
10. the making method of low resin content rostone as claimed in claim 1 is characterized in that,
Said macrobead compound poured into wait at least 20 minutes behind the mould and begin again to solidify.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110155236 CN102815890A (en) | 2011-06-09 | 2011-06-09 | Method for producing artificial stones with low resin content |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110155236 CN102815890A (en) | 2011-06-09 | 2011-06-09 | Method for producing artificial stones with low resin content |
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| CN102815890A true CN102815890A (en) | 2012-12-12 |
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| CN 201110155236 Pending CN102815890A (en) | 2011-06-09 | 2011-06-09 | Method for producing artificial stones with low resin content |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109096738A (en) * | 2018-07-12 | 2018-12-28 | 宁波蒙曼生物科技有限公司 | A kind of novel tree epoxy-type artificial stone and preparation method thereof |
| CN115321903A (en) * | 2022-08-02 | 2022-11-11 | 中建海龙科技有限公司 | Inorganic artificial stone plate and preparation method thereof |
-
2011
- 2011-06-09 CN CN 201110155236 patent/CN102815890A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109096738A (en) * | 2018-07-12 | 2018-12-28 | 宁波蒙曼生物科技有限公司 | A kind of novel tree epoxy-type artificial stone and preparation method thereof |
| CN109096738B (en) * | 2018-07-12 | 2021-03-16 | 福建鹏翔实业有限公司 | Resin type artificial stone and preparation method thereof |
| CN115321903A (en) * | 2022-08-02 | 2022-11-11 | 中建海龙科技有限公司 | Inorganic artificial stone plate and preparation method thereof |
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Application publication date: 20121212 |