阅读说明：本技术 一种导电无机人造石及其制备方法 (Conductive inorganic artificial stone and preparation method thereof ) 是由 赵宝军 吴琛 曾正详 谭鹏 王俊 张宗军 王琼 王健 任明宇 刘新伟 于 2021-07-23 设计创作，主要内容包括：本申请涉及室内建筑材料的领域,具体公开了一种导电无机人造石及其制备方法。导电无机人造石包括导电层和绝缘层,导电层包括以下重量份的组分：石英砂33-39份、水泥15-18份、水3-5份、减水剂0.3-0.6份、增韧剂0.6-1.8份、导电介质1-15份,还包括占水泥质量0.1%-0.4%的分散剂；绝缘层包括以下重量份的组分：石英砂5-15份、水泥2-8份、水0.5-3份、减水剂0.05-0.2份；其制备方法为：分别配制导电层混合料和绝缘层混合料,然后将导电层进行初步压制成型后,将绝缘层原材料均匀铺设于导电层原材料上表面,真空振动压制成型得到毛板,最后对毛板进行蒸汽养护、定厚抛光得到导电无机人造石。本申请中的导电无机人造石可用于室内供暖,其具有成本低、安装简单、产热效率高的优点。(The application relates to the field of indoor building materials, and particularly discloses a conductive inorganic artificial stone and a preparation method thereof. The conductive inorganic artificial stone comprises a conductive layer and an insulating layer, wherein the conductive layer comprises the following components in parts by weight: 33-39 parts of quartz sand, 15-18 parts of cement, 3-5 parts of water, 0.3-0.6 part of water reducing agent, 0.6-1.8 parts of toughening agent, 1-15 parts of conductive medium and a dispersing agent accounting for 0.1-0.4% of the mass of the cement; the insulating layer comprises the following components in parts by weight: 5-15 parts of quartz sand, 2-8 parts of cement, 0.5-3 parts of water and 0.05-0.2 part of water reducing agent; the preparation method comprises the following steps: respectively preparing a conducting layer mixture and an insulating layer mixture, then, preliminarily pressing and forming the conducting layer, uniformly paving the insulating layer raw material on the upper surface of the conducting layer raw material, carrying out vacuum vibration pressing and forming to obtain a rough plate, and finally, carrying out steam curing and fixed-thickness polishing on the rough plate to obtain the conductive inorganic artificial stone. The electrically conductive inorganic rostone in this application can be used to indoor heating, and it has with low costs, the installation is simple, the efficient advantage of heat production.)

1. The conductive inorganic artificial stone comprises a conductive layer and is characterized in that the conductive layer is prepared from the following raw materials in parts by weight: 33-39 parts of quartz sand, 15-18 parts of cement, 3-5 parts of water, 0.3-0.6 part of water reducing agent, 0.6-1.8 parts of toughening agent, 1-15 parts of conductive medium and a dispersing agent accounting for 0.1-0.4% of the mass of the cement.

2. An electrically conductive inorganic artificial stone according to claim 1, wherein: the conductive medium is one or more of graphite, carbon fiber and nano carbon black.

3. An electrically conductive inorganic artificial stone according to claim 1 or 2, further comprising an insulating layer adhered to the electrically conductive layer, wherein the insulating layer is made of raw materials comprising, by weight: 5-15 parts of quartz sand, 2-8 parts of cement, 0.5-3 parts of water and 0.05-0.2 part of water reducing agent.

4. A method for producing an electrically conductive inorganic artificial stone according to any one of claims 1 to 3, comprising the steps of:

preparing a conducting layer mixture, and uniformly mixing raw materials of the conducting layer according to a ratio;

preparing an insulating layer mixture, and uniformly mixing the raw materials of the insulating layer according to the proportion;

pressing and forming, namely uniformly paving the mixture of the conducting layers in a mould for prepressing, pressing irregular sawtooth-shaped grooves on the upper surfaces of the conducting layers, uniformly paving the raw materials of the insulating layers above the prepressed conducting layers, then performing vacuum vibration pressing and forming, and immediately demolding after pressing and forming to obtain a rough board;

and (4) curing, namely performing steam curing on the rough plate, and performing fixed-thickness polishing after the curing is finished to obtain the conductive inorganic artificial stone.

5. The method for preparing an electrically conductive inorganic artificial stone according to claim 4, wherein: the preparation steps of the conducting layer mixture are as follows:

s1, weighing 60% of water, adding a dispersing agent into the water, uniformly stirring, then adding a water reducing agent, a toughening agent and a conductive medium, and uniformly stirring until uniformly mixing to obtain a mixture A;

and S2, adding the cement into the residual 40% of water, uniformly mixing, adding into the mixture A, uniformly mixing, adding quartz sand, and uniformly stirring to obtain a conductive layer mixture.

6. The method for preparing an electrically conductive inorganic artificial stone according to claim 5, wherein: and step S1, adding a conductive medium, and stirring at a constant speed for 1-2 min at a stirring frequency of 6-10 Hz.

7. The method of claim 4, wherein the insulating layer mixture is prepared by the steps of: firstly, adding the water reducing agent into water, stirring and mixing uniformly, then adding the cement, stirring and mixing uniformly, and finally adding the quartz sand, stirring and mixing uniformly.

8. The method for preparing an electrically conductive inorganic artificial stone according to claim 4, wherein: when the vacuum vibration pressing molding is carried out, the absolute vacuum degree is 0.1-0.15 MPa, the pressure is 250 tons, the vibration frequency is 45-50 Hz, and the pressing time is 5-8 min.

9. The method for preparing an electrically conductive inorganic artificial stone according to claim 4, wherein: and during steam curing, the temperature is 70-80 ℃, and the curing time is 7-10 days.

Technical Field

The application relates to the field of building decoration materials, in particular to a conductive inorganic artificial stone and a preparation method thereof.

Background

With the improvement of the material level, the requirement of people on the comfort level of the home environment is increasingly improved, and the building heating becomes the essential requirement for most people to live through the cold winter. As an indoor heating material, it is required to satisfy requirements of comfort, safety, greenness, environmental protection, energy saving, etc., and based on this, ground radiant heating is gradually appearing before people, and is considered as the most comfortable heating manner.

At present, the ground radiation heating is mostly realized by paving heating materials below the ground to release heat, the heating materials paved below the ground mainly comprise heating cables, electrothermal films and the like, after the heating and the electric heating are installed, a layer of concrete needs to be poured on the heating materials, then a decorative layer is paved, and the electrothermal films are also paved below the decorative layer.

In view of the above-mentioned related technologies, the inventor thinks that through the mode of laying heating cable and electric heat membrane heating, the measure of troubleshooting maintenance is not considered in whole work progress, when breaking down, need all destroy whole decorative layer, cause the wasting of resources to the cost is very high.

Disclosure of Invention

In order to reduce the resource waste in the indoor heating process and reduce the cost of indoor heating materials, the application provides the conductive inorganic artificial stone and the preparation method thereof.

In a first aspect, the present application provides a conductive inorganic artificial stone, which adopts the following technical scheme:

the conductive inorganic artificial stone comprises a conductive layer, wherein the conductive layer is prepared from the following raw materials in parts by weight: 33-39 parts of quartz sand, 15-18 parts of cement, 3-5 parts of water, 0.3-0.6 part of water reducing agent, 0.6-1.8 parts of toughening agent, 1-15 parts of conductive medium and a dispersing agent accounting for 0.1-0.4% of the mass of the cement.

Through adopting above-mentioned technical scheme, electrically conductive inorganic rostone in this application makes the conducting layer have electric conductive property through adding conductive medium, and the inorganic rostone can generate heat after circular telegram for the conducting layer, and the heat of production gives off indoor being used for the heating. The inorganic artificial stone prepared by the technical scheme has good compressive strength and breaking strength, and meanwhile, the conducting layer has good conductivity. Be applied to indoor heating with inorganic rostone in this application, need not additionally lay the material that generates heat, only need change rostone panel when carrying out the maintenance by failure, effectively reduced indoor heating device's construction cost, reduced the wasting of resources among the troubleshooting process.

Preferably, the conductive medium is one or more of graphite, carbon fiber and nano carbon black.

Preferably, the conductive layer further comprises an insulating layer adhered to the conductive layer, wherein the insulating layer is prepared from the following raw materials in parts by weight: 5-15 parts of quartz sand, 2-8 parts of cement, 0.5-3 parts of water and 0.05-0.2 part of water reducing agent.

By adopting the technical scheme, the insulating layer is adhered on the conducting layer, so that the conducting layer is separated from the indoor environment, safety accidents such as electric leakage and the like are prevented, and the safety and reliability of the product are improved.

In a second aspect, the application provides a method for preparing a conductive inorganic artificial stone, which adopts the following technical scheme:

a preparation method of the conductive inorganic artificial stone comprises the following steps:

preparing a conducting layer mixture, and uniformly mixing raw materials of the conducting layer according to a ratio;

preparing an insulating layer mixture, and uniformly mixing the raw materials of the insulating layer according to the proportion;

pressing and forming, namely uniformly paving the mixture of the conducting layers in a mould for prepressing, pressing irregular sawtooth-shaped grooves on the upper surfaces of the conducting layers, uniformly paving the raw materials of the insulating layers above the prepressed conducting layers, finally performing vacuum vibration pressing and forming, and immediately demolding after pressing and forming to obtain a rough board;

and (4) maintaining, namely performing steam maintenance on the rough plate, and performing fixed-thickness polishing after the maintenance is finished to obtain the inorganic artificial stone.

By adopting the technical scheme, the conducting layer and the insulating layer are adhered together through the adhesive force between the materials, and the irregular sawtooth-shaped grooves are pressed on the upper surface of the conducting layer through the special pressing plate during pressing, so that the contact area between the conducting layer and the insulating layer is larger, the adhesive force between the conducting layer and the insulating layer is improved, and the product after press forming is prevented from layering.

Preferably, the preparation steps of the conductive layer mixture are as follows:

s1, weighing 60% of water, adding a dispersing agent into the water, uniformly stirring, then adding a water reducing agent, a toughening agent and a conductive medium, and uniformly stirring until uniformly mixing to obtain a mixture A;

and S2, adding the cement into the residual 40% of water, uniformly mixing, adding into the mixture A, uniformly mixing, adding quartz sand, and uniformly stirring to obtain a conductive layer mixture.

By adopting the technical scheme, the dispersing agent is firstly dispersed in water, and then the conductive medium is added, so that the conductive medium can be better dispersed in water, the dispersion uniformity of the conductive medium in a product is improved, and the conductivity of the product is improved. The quartz sand is finally added into the mixture, so that the quartz sand can be uniformly distributed in the mixture, the uniformity of each part in the mixture is better, and the prepared inorganic artificial stone has better adhesive property and mechanical property.

Preferably, when the conductive medium is added in the step S1 and then stirred at a constant speed, the stirring frequency is 6-10 Hz, and the stirring time is 1-2 min.

Preferably, the preparation steps of the insulating layer mixture are as follows: firstly, adding the water reducing agent into water, stirring and mixing uniformly, then adding the cement, stirring and mixing uniformly, and finally adding the quartz sand, stirring and mixing uniformly.

Preferably, when the vacuum vibration pressing molding is carried out, the absolute vacuum degree is 0.1-0.15 MPa, the pressure is 250 tons, the vibration frequency is 45-50 Hz, and the pressing time is 5-8 min.

Preferably, the steam curing temperature of the rough board is 70-80 ℃, and the curing time is 7-10 days.

Through adopting above-mentioned technical scheme, bond conducting layer and insulating layer together through vacuum vibration pressing, because the conducting layer has irregular cockscomb structure recess with the insulating layer contact surface, so the adhesion between conducting layer and the insulating layer is inseparabler. Through vacuum vibration pressing, the bonding between each part in the conductive inorganic artificial stone is tighter, and the internal strength of the conductive inorganic artificial stone is enhanced. The strength and durability of the conductive inorganic artificial stone are improved through steam curing.

In summary, the present application has the following beneficial effects:

the conductive inorganic artificial stone is prepared by adding the conductive medium, and heat generation of the conductive inorganic artificial stone is realized by electrifying the conductive inorganic artificial stone, so that compared with the existing floor radiant heating, the conductive inorganic artificial stone can be made thinner to reduce the occupation of indoor space; during installation, a troubleshooting mechanism can be made in advance so as to find out a fault position for maintenance, and pipelines do not need to be installed, so that heat loss in the transmission process of various pipelines is avoided. And the preparation process of the conductive inorganic artificial stone is simple, the cost is low, and mass production can be realized.

Detailed Description

The present application will be described in further detail with reference to examples thereof.

On the premise of advocating "passive building", as indoor heating material, need satisfy demands such as comfortable, safety, green, energy-conservation, environmental protection, based on this, ground radiant heating appears in people's front, and ground radiant heating is also regarded as the most comfortable a heating mode. In conventional floor radiant heating, heat is generated by laying a heating material under a base plate, and the heat is radiated to the indoor through the base plate to raise the indoor temperature. However, the heating material is large in investment in the early stage, energy consumption is serious, and later-stage overhaul and maintenance are not facilitated. Based on this, in recent years, some scholars at home and abroad propose a novel building material, namely a conductive cement-based material, and a large number of researches show that the electric heating performance of the conductive cement-based material can be applied to the actual projects of ice melting and snow removing of roads and bridge pavements, but the conductive cement-based material is mostly thick plates exceeding 5cm in the actual generation process and is not suitable for indoor heating installation. Therefore, there is a need for a safe, energy-saving and environment-friendly material, which can satisfy the indoor heating requirement and has the characteristics of thin thickness, easy installation, low cost and the like.

The sources of the raw materials in the examples of the application are as follows:

the cement is selected from P.W 52.5.5 white Portland cement produced by Jiangxi silver fir white cement GmbH;

the water reducing agent is selected from a polycarboxylic acid high-efficiency water reducing agent produced by Zhongjiao fourth aviation engineering administration Limited company, the model is HSP-V, and the solid content is 30 percent;

the toughening agent is selected from butylbenzene emulsion produced by Shanghai Xin special Ma chemical Co., Ltd, the type is 5840, and the solid content is 50%;

the dispersing agent is a mixture of sodium polyacrylate and triethanolamine according to a mass ratio of 45: 55;

the conductive medium can be one or more of conventional inorganic conductive media graphite, carbon fiber and nano carbon black, and the conductive medium in the embodiment of the application is selected from high-temperature conductive graphite, carbon fiber tubes and nano carbon black produced by Guangdong Sha chemical industry and technology Limited.

Examples

The main difference between examples 1 to 6 is the ratio of the conductive medium in the raw material of the conductive layer.

The main difference between examples 7 to 10 is the thickness of the insulating layer in the prepared conductive inorganic artificial stone.

The main difference between examples 11 to 13 is the method for preparing the conductive inorganic artificial stone.

Example 1

The embodiment of the application discloses electrically conductive inorganic rostone, including conducting layer and insulating layer, the conducting layer contains the following parts by weight's raw and other materials component: 33 kg of quartz sand, 18 kg of cement, 4 kg of water, 0.4 kg of polycarboxylic acid high-efficiency water reducer, 1.2 kg of styrene-butadiene emulsion, 0.1 kg of dispersant and 1 kg of graphite; the insulation layer comprises the following raw material components in weight percent: 5 kg of quartz sand, 3 kg of cement, 0.5 kg of water and 0.05 kg of polycarboxylic acid high-efficiency water reducing agent.

The preparation method comprises the following steps:

firstly, preparing a conducting layer mixture, comprising the following steps:

s1, weighing 19.8 kg of prepared water in the raw materials of the conducting layer, adding the dispersing agent into the water, stirring for 1min, uniformly mixing, then sequentially adding the polycarboxylic acid high-efficiency water reducing agent, the styrene-butadiene emulsion and the graphite into the water, and uniformly stirring for 2min at a stirring frequency of 8Hz to obtain a mixture A;

s2, adding the cement into the remaining 13.2 kg of water, and uniformly stirring for 5min at a stirring frequency of 10Hz to obtain a mixture B;

s3, adding the mixture B into the mixture A, and uniformly stirring for 5min at a stirring frequency of 8Hz to obtain a mixture C;

and S4, adding the quartz sand into the mixture C, and uniformly stirring for 10min at a stirring frequency of 15Hz to obtain a conductive layer mixture.

Secondly, preparing an insulating layer mixture, comprising the following steps:

s1, adding a water reducing agent into water, and stirring at a constant speed of 6Hz for 1min to obtain a mixture D;

s2, adding the cement into the mixture D, and uniformly stirring for 3min at a stirring frequency of 8Hz to obtain a mixture E;

and S3, adding the quartz sand into the mixture E, and uniformly stirring for 10min at a stirring frequency of 15Hz to obtain an insulating layer mixture.

And thirdly, pressing and forming. Uniformly paving the mixture of the conducting layer obtained in the first step in a mould, pre-pressing the mixture by a special pressing plate, preliminarily pressing the conducting layer to form by pre-pressing, wherein irregular sawtooth-shaped bulges are arranged on the special pressing plate, and irregular sawtooth-shaped grooves can be pressed on the upper surface of the conducting layer. And after preliminary pressing, uniformly paving the insulating layer mixture prepared in the second step above the conductive layer, then integrally performing vacuum vibration pressing molding, and immediately demolding after pressing molding to obtain the rough board. Wherein the absolute vacuum degree of vacuum vibration pressing is 0.1MPa, the pressure is 250 tons, the vibration frequency is 48Hz, and the pressing time is 8 min.

And fourthly, maintaining. And (4) performing steam curing on the rough board prepared in the third step at the temperature of 80 ℃ for 7 days, and performing fixed-thickness polishing after the curing is completed to obtain the conductive inorganic artificial stone.

In the conductive inorganic artificial stone prepared in the embodiment, the thickness of the insulating layer is about 3 mm.

Example 2

The difference from example 1 is that: in the raw materials of the conducting layer, 39 kg of quartz sand, 15 kg of cement and 5 kg of graphite are used.

Example 3

The difference from example 1 is that: in the raw materials of the conducting layer, 36 kg of quartz sand, 16 kg of cement and 8 kg of graphite are used.

Example 4

The difference from example 1 is that: in the raw materials of the conducting layer, 36 kg of quartz sand, 16 kg of cement and 10 kg of graphite are used.

Example 5

The difference from example 1 is that: in the raw materials of the conducting layer, 36 kg of quartz sand, 16 kg of cement and 15 kg of graphite are used.

Example 6

The difference from example 1 is that: in the raw materials of the conducting layer, 36 kg of quartz sand and 18 kg of cement are adopted, and the conducting medium is a mixture of graphite, carbon fibers and nano carbon black, wherein 4 kg of graphite, 3 kg of carbon fibers and 3 kg of nano carbon black are adopted.

Example 7

The difference from example 4 is that: in the insulating layer material, 8 kg of quartz sand and 5 kg of cement are adopted, and the thickness of the insulating layer is 8 mm.

Example 8

The difference from example 4 is that: in the insulating layer material, 12 kg of quartz sand and 6 kg of cement are contained, and the thickness of the insulating layer is 10 mm.

Example 9

The difference from example 4 is that: in the insulating layer material, 15 kg of quartz sand and 5 kg of cement are contained, and the thickness of the insulating layer is 15 mm.

Example 10

The difference from example 4 is that: in the insulating layer material, 20 kg of quartz sand and 5 kg of cement are contained, and the thickness of the insulating layer is 20 mm.

Example 11

The difference from example 8 is that: the conducting layer uses ordinary clamp plate when carrying out preliminary pressing, and the conducting layer upper surface does not have irregular cockscomb structure recess.

Example 12

The difference from example 11 is that: during compression molding, the conducting layer is not pre-compressed, the conducting layer mixture is firstly uniformly laid in a mold, then the insulating layer mixture is uniformly laid above the conducting layer mixture, and finally vacuum vibration compression molding is carried out together.

Example 13

The difference from example 8 is that: when the conductive inorganic artificial stone is pressed and formed, the conventional vacuum pressurization pressing and forming is adopted, and the vacuum vibration pressing and forming is not adopted, wherein the absolute vacuum degree is 0.1MPa, the pressure is 250 tons, and the pressing time is 8 min.

Comparative example

Comparative example 1

The difference from example 4 is that: 42 kg of quartz sand, 22 kg of cement, 7 kg of water, 0.5 kg of polycarboxylic acid high-efficiency water reducing agent, 1.2 kg of styrene-butadiene emulsion, 0.1 kg of dispersing agent and no conductive medium added in the raw materials.

Comparative example 2

The difference from example 8 is that: in the insulating layer material, 25 kg of quartz sand and 8 kg of cement are adopted, and the thickness of the insulating layer is 25 mm.

Performance test

The inorganic artificial stone prepared in examples 1 to 13 and comparative examples 1 and 2 was subjected to the test of compressive strength and flexural strength properties with reference to GB/T35160-. The results are shown in Table 1.

Table 1: flexural strength, compressive strength and resistivity detection data

	Flexural strength/MPa	Compressive strength/MPa	Resistivity/Ω · m	Heat dissipation efficiency/min
					Example 1	17.8	113.3	87.34	/
Example 2	17.3	112.5	11.65	/
					Example 3	16.1	111.1	1.31	12
Example 4	14.3	106.4	0.21	5
					Example 5	11.5	98.2	0.01	/
Example 6	9.6	77.9	0.19	5
					Example 7	16.5	111.8	0.18	11
Example 8	17.1	112.5	0.21	19
					Example 9	17.4	112.7	0.20	25
Example 10	16.8	111.4	0.18	35
					Example 11	16.3	111.5	/	/
Example 12	17.6	113.8	0.78	/
					Example 13	13.3	97.5	/	/
Comparative example 1	21.7	115.3	/	/
					Comparative example 2	20.3	110.9	0.23	57

By combining examples 1-6 and comparative example 1 and the data in table 1, it can be seen that the compressive strength and the flexural strength of the conductive inorganic artificial stone and the non-conductive inorganic artificial stone prepared by the same material ratio have no obvious difference. The resistivity of the conducting layer is reduced along with the gradual increase of the proportion of the graphite in the conducting inorganic artificial stone, but the compressive strength and the flexural strength of the conducting inorganic artificial stone are also reduced, and when the proportion of the graphite is increased after the proportion of the graphite in the raw materials of the conducting layer exceeds 15%, the compressive strength and the flexural strength of the prepared conducting inorganic artificial stone are obviously reduced, and the reduction amplitude is obviously increased.

It can be seen from the data of examples 4, 7 to 10, comparative example 2 and table 1 that, when the thickness of the insulating layer is increased, there is no significant difference in the flexural strength and compressive strength of the prepared conductive inorganic artificial stone, but, when the performance test is performed, the conductive inorganic artificial stone prepared in example 4 is separated from the insulating layer when the test sample is crushed in the pressure test, and thus a significant delamination phenomenon occurs, a slight delamination phenomenon occurs in example 7, and no delamination occurs in examples 8 to 10. It can be seen that when the thickness of the insulating layer is relatively thin, the adhesion between the insulating layer and the conductive layer is poor, and although the compressive strength and the flexural strength of the entire product are high, delamination and detachment between the insulating layer and the conductive layer are likely to occur. In addition, when the thickness of the insulating layer is too thick, the heat generated by the conducting layer can be isolated by the insulating layer and cannot be well radiated indoors, so that the heat dissipation efficiency of the product can be influenced.

It can be seen from the data in examples 8 and 13 and table 1 that when the irregular saw-toothed groove is not formed between the insulating layer and the conductive layer, the bending strength and the compressive strength of the insulating layer and the conductive layer are not changed significantly, but when the sample is crushed by pressurization during performance detection, the insulating layer and the conductive layer are layered significantly.

It can be seen from the data in examples 8 and 12 and table 1 that, when the conductive layer is not pre-pressed during the press molding, the compressive strength and the flexural strength of the conductive inorganic artificial stone obtained by vacuum vibration press molding of the conductive layer and the insulating layer material are not significantly different from those of the conductive inorganic artificial stone obtained by pre-pressing the conductive layer in example 8, but the resistivity is increased to some extent. It is found that, in the press molding, the conductive layer material is pre-pressed and then press-molded under vacuum vibration, so that the conductivity of the conductive inorganic artificial stone can be maintained more effectively.

By combining the data in example 8, example 13 and table 1, the compressive strength and the flexural strength of the conductive crisis artificial stone obtained by conventional vacuum pressure pressing are obviously reduced during pressing and forming. Therefore, the combination of all parts in the artificial stone can be more compact by adopting vacuum vibration pressing molding, and the compressive strength of the breaking strength of the product can be effectively improved.

In conclusion, when the proportion of the graphite in the raw materials of the conductive layer is close to 15%, the resistivity of the conductive layer and the breaking strength and the compressive strength of the conductive inorganic artificial stone are all excellent, and the prepared conductive inorganic artificial stone has good electric heating performance and can also keep good mechanical performance. When the thickness of the insulating layer is 10-20 mm, the bonding performance between the insulating layer and the conducting layer is good, the prepared conducting inorganic artificial stone is free from layering, and meanwhile good heat dissipation performance can be maintained. In addition, when the conductive inorganic artificial stone is pressed and formed, irregular sawtooth-shaped grooves are pre-pressed between the conductive layer and the insulating layer, and the bonding force between the insulating layer and the conductive layer is increased by increasing the contact area between the insulating layer and the conductive layer.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.