KR20170066938A

KR20170066938A - A method for manufacturing crunch chip, crunch chip manufactured by thereof and artificial marble comprising the crunch chip

Info

Publication number: KR20170066938A
Application number: KR1020150173187A
Authority: KR
Inventors: 최한성; 이용훈
Original assignee: (주)엘지하우시스
Priority date: 2015-12-07
Filing date: 2015-12-07
Publication date: 2017-06-15
Also published as: KR102035887B1

Abstract

The present invention relates to a method for producing a cured product, which comprises a first mixing step of mixing a first resin and a chip, a first curing step of curing the first mixture in which the first resin and the chips are mixed, And a crushing chip comprising the crunch chip and the artificial marble comprising the crunch chip.
The crunch chip manufacturing method of the present invention, the crunch chip manufactured by the method, and the artificial marble comprising the crunch chip of the present invention can be applied to a crunch chip having a layered and broken- The marble can be provided, which can improve the problem of the edges of the artificial marble appearing empty.

Description

TECHNICAL FIELD The present invention relates to a crunch chip manufacturing method, a crunch chip manufactured by the method, and artificial marble comprising the same. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crunch chip,

The present invention relates to a crunch chip manufacturing method, a crunch chip manufactured thereby, and an artificial marble comprising the same. More particularly, the present invention relates to a crunch chip comprising a first mixing step of mixing a first resin and a chip, A first curing step of curing the first mixture and And a first crushing step of crushing a first cured product obtained by curing the first mixture, a crunch chip produced thereby, and an artificial marble comprising the same.

Natural marble has a high surface hardness and is attracting attention as a building material due to its excellent appearance. However, it has a limitation in popularization due to its low impact resistance, difficult processing, and high price. Due to these limitations, artificial marble has a high strength and a variety of images, patterns, and colors compared to natural marble, and its demand is increasing due to many advantages such as excellent workability and excellent weatherability.

In general, artificial marble made of an acrylic resin is widely used as a counter table and various interior materials because of its excellent appearance and excellent workability, light weight and superior strength compared with natural marble.

Acrylic artificial marble is generally manufactured by adding a filler such as aluminum hydroxide, calcium carbonate, silica or the like to a syrup obtained by mixing monomers such as methylmethacrylate with polymethyl methacrylate, And a curing agent, followed by molding in a mold and a continuous steel belt, followed by curing.

In this case, as a means of indicating the shape and color, a raw material called a pigment and a chip is used. The main component of the chip is usually the same as artificial marble, but a thermoplastic resin such as polyvinyl chloride (PVC), polystyrene Or a thermosetting resin such as an epoxy resin or an unsaturated polyester resin may be used. One or more pigments are added to produce a flat panel in the same process as that of artificial marble and then pulverized into various sizes.

Transparent chip, which is one type of chip, is intended to realize various patterns of artificial marble, and appearance realized by transparent chip has the greatest influence on the product value. Artificial marble using transparent chips that have been commercialized to date is manufactured by using poly methyl methacrylate resin or unsaturated polyester resin as a transparent chip.

In particular, transparent chips that give a quartz feel in artificial marble were made into a plate material at the time of manufacture and then crushed into chip type. Such a transparent chip is generally manufactured using epoxy, and such a transparent chip has a problem that there is not a rich depth feeling as if it is layered or broken by simple high transparency.

Korean Patent Registration No. 10-0553603 discloses a chip which is a chip having chips of various colors in one chip, but a chip with a rich depth can not be presented.

Domestic Registration No. 10-0553603 (Notification Date July 6, 2004)

Accordingly, the present inventors have made intensive studies to solve the above-mentioned problems, and as a result, they have found that a first mixing step of mixing a first resin and a chip, a first curing step of curing the first mixture of the first resin and the chips, And a first crushing step of crushing the first cured product obtained by curing the first mixture, and a crushing chip produced by the crushing method, thereby realizing the present invention Respectively.

Accordingly, the present invention provides a crunch chip manufacturing method realizing a depth feeling similar to the appearance of natural marble, a crunch chip manufactured thereby, and an artificial marble including a crunch chip that realizes a depth feeling similar to the appearance of natural marble to provide.

In order to achieve the above-mentioned object, the present invention provides a method of manufacturing a semiconductor device comprising a first mixing step of mixing a first resin and a chip, a first curing step of curing the first mixture in which the first resin and the chip are mixed, And a first crushing step of crushing the cured first cured product, and a crunch chip produced by the method.

The present invention also provides an artificial marble comprising the crunch chip.

According to the crunch chip manufacturing method of the present invention and the crunch chip manufactured thereby, it is possible to provide crunch chips and artificial marble including the crunch chips, which are layered and broken like quartz, Thereby improving the appearance of the corners of the artificial marble and improving the quality of the product by realizing a rich appearance.

1 is a photograph showing artificial marble using a conventional transparent chip. Conventional transparent chips use only high-transparency epoxy chips, which causes a problem of visibility.
FIG. 2 shows a first mixing step (S10) of mixing the first resin and a chip of the present invention, a first curing step (S20) of curing the first mixture in which the first resin and the chips are mixed, And a first crushing step (S30) of crushing the cured first cured product.
3 is a perspective view of the crunch chip 100 manufactured by the manufacturing method of the present invention.
4 is an actual photograph of the crunch chip 100 of the present invention according to the first embodiment.
5 is an enlarged photograph of the crunch chip portion of the artificial marble according to the third embodiment of the present invention.
6 is an enlarged photograph of the crunch chip portion of the artificial marble according to the fourth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings.

As a first aspect of the present invention, there is provided a method of manufacturing a semiconductor device, comprising a first mixing step (S10) of mixing a first resin and a chip, a first curing step (S20) of curing the first mixture in which the first resin and the chip are mixed, And a first crushing step (S30) of crushing the first cured material of the mixture (see Fig. 2).

The crunch chip of the present invention is one of the kinds of chips to be mixed in the production of artificial marble. The crunch chip means a chip manufactured by making a flat plate and crushing the chip to manufacture chips, putting the chip into resin, The crunch chip can be added to the process of manufacturing artificial marble to provide a natural appearance mixed with various minerals such as natural marble.

As described later, the crunch chip 100 of the present invention may be irregularly distributed on the inner surface or the surface of the transparent layer 110 including the first resin.

The first mixing step (S10) of the present invention may include mixing the first resin and the chips.

The first resin of the first mixing step (S10) of the present invention may be an acrylic resin, an unsaturated polyester resin, an epoxy resin, a polyvinyl chloride, a polystyrene, a polycarbonate, a polyethylene terephthalate, and a styrene- But it is not limited to such a transparent resin. The first resin may be at least one selected from a brominated epoxy and a brominated epoxy acrylate so that the first resin forms a transparent layer 110 and a chip irregularly distributed on the inner surface or the surface of the transparent layer can be seen. The form of the first resin may be mixed in a known form, but may be mixed, preferably in the form of a liquid or powder type.

In addition, the first mixture in which the first resin and the chip are mixed in the first mixing step (S10) may further include a crosslinking agent and a polymerization initiator.

The cross-linking agent is a multifunctional acrylic monomer having a double bond capable of copolymerization with the first resin, and is selected from the group consisting of ethylene glycol dimethacrylate (EDMA), diethylene glycol dimethacrylate (2EDMA), triethylene glycol Dimethacrylate (3EDMA), tetraethylene glycol dimethacrylate (4EDMA), trimethylolpropane trimethacrylate (TMPMA), 1,6-hexanediol dimethacrylate, polybutylene glycol dimethacrylate , Neopentyl glycol dimethacrylate, and the like, or a mixture of two or more thereof. Of these, ethylene glycol dimethacrylate is particularly preferable. If the crosslinking agent is not used or if the crosslinking agent is used in an excessively small amount, unevenness of the surface will occur, the bonding force between the raw materials will be lowered, and the heat resistance and heat discoloration will be deteriorated. When the cross-linking agent is used in too much amount, phase separation of the chips occurs. Therefore, the amount of the crosslinking agent used is preferably 0.1 to 10 parts by weight based on 100 parts by weight of the resin syrup.

The polymerization initiator serves to carry out the polymerization and curing of the resin composition. As the organic peroxide, diacyl peroxide such as benzoyl peroxide, dicumyl peroxide, butyl hydroperoxide, hydroperoxide such as cumyl hydroperoxide, t- Butyl hydroperoxide, t-butyl hydroperoxy butyrate, acetyl peroxide, lauroyl peroxide, azobisisobutyronitrile, azobisdimethyl valeronitrile, t-butyl peroxy neo Decanoate, t-amylperoxy 2-ethylhexanoate, and the like, or a mixture of two or more thereof. In addition, a mixture of peroxide and sulfonic acid of amine or a mixture of peroxide and cobalt compound can be used to effect polymerization and curing at room temperature. The content of the polymerization initiator is preferably 0.1 to 10 parts by weight based on 100 parts by weight of the resin syrup, and is generally used together with a polymerization accelerator. If the amount of the polymerization initiator used is too small, the curing rate is slow and sufficient curing does not occur. On the other hand, if the amount is too large, the curing rate may be delayed and partial uncracking may occur.

The chip of the first mixing step (S10) of the present invention comprises a second mixing step of mixing the second resin and the inorganic filler, a second curing step of curing the second mixture of the second resin and the inorganic filler, And a second crushing step of crushing the second cured material that has cured the second mixture.

The second mixing step of the present invention comprises mixing the second resin and the inorganic filler.

Wherein the second resin in the second mixing step is selected from the group consisting of an acrylic resin, an unsaturated polyester resin, an epoxy resin, a polyvinyl chloride, a polystyrene, a polycarbonate, a polyethylene terephthalate, and a styrene-methyl methacrylate copolymer But may be colored or colorless, including, but not limited to, one or more resins. Preferably, the second resin may be composed of an unsaturated polyester resin having a refractive index similar to that of the inorganic filler and capable of giving a translucent effect when cured, and the second resin is of liquid type.

The inorganic filler in the second mixing step may be any of inorganic powders commonly used in the art such as aluminum hydroxide, magnesium hydroxide, calcium aluminate, calcium carbonate, silica powder and alumina, and may be used singly or in admixture of two or more Can be used. The inorganic filler may be contained in an amount of 100 to 200 parts by weight, and preferably 120 to 180 parts by weight, based on 100 parts by weight of the second resin. Inorganic fillers are mixed with resin to adjust the specific gravity and maintain the strength of the molding. In many cases, the filler becomes opaque due to its inherent hue. However, when the refractive index of the resin and filler is similar, it is possible to obtain a translucent color which is not completely opaque.

Further, the second mixture obtained by mixing the second resin and the inorganic filler in the second mixing step may further comprise the above-mentioned crosslinking agent and polymerization initiator.

The second curing step of the present invention comprises curing the second mixture of the second resin and the inorganic filler.

The method of curing the second mixture in which the second resin and the inorganic filler are mixed can be cured by a known method. Preferably one or more curing methods selected from a casting method, a pressing method and a UV curing method. More preferably, it can be cured by a continuous casting method.

The second mixture of the second resin and the inorganic filler in the second curing step may be cured in a form well known to those skilled in the art and preferably in order to facilitate processes such as transport and subsequent crushing steps And can be hardened in the form of a plate.

The second milling step of the present invention comprises milling the second cured product of the second mixture. The second cured product may be pulverized by a known pulverizer.

The second cured product obtained by curing the second mixture may be pulverized to have a size of 2.5 to 100 mesh. The mesh is a unit representing the size of a hole or particle of a sieve, and is a unit expressed by the number of graduations contained in a length of 1 inch according to a Tyler Standard Sieve. When the crushed second cured material is less than 2.5 mesh, the particle size of the chip is increased to make it difficult to have a sense of depth such as natural stone. When the crushed second cured material is larger than 100 mesh, it is difficult to obtain a feeling of broken like natural stone.

In the first mixing step (S10), 20 parts by weight to 200 parts by weight of chips may be mixed with 100 parts by weight of the first resin, preferably 100 parts by weight of the first resin and 30 parts by weight to 150 parts by weight of the chips have. If the weight is out of the above range, the specific gravity of the crunch chip may become too large or small.

The first curing step (S20) of the present invention comprises curing the first mixture of the first resin and the chips. As the method of curing the first mixture, a known curing method may be used, and preferably one or more curing methods selected from a casting method, a pressing method and a UV curing method may be cured, and more preferably, It can be cured by casting curing method.

The first mixture in the first curing step S20 may be cured in a form well known to those skilled in the art and is preferably in the form of a sheet material to facilitate the ease of transport and the subsequent first crushing step S30, Lt; / RTI >

The first crushing step (S30) of the present invention comprises crushing the first cured material of the first mixture. The method of crushing the cured product may be carried out by a known crushing apparatus.

The first crushing step (S30) can crush the first cured material to 3 to 35 mesh, and preferably to 3.5 to 30 mesh. If the size of the crushed first crushed product is more than 35 mesh, it is difficult for the consumer to feel a layered and broken feeling like a natural stone. If the size of crushed chips is less than 3 mesh, an artificial feeling may be felt when applied to artificial marble.

3 is a perspective view of the crunch chip 100 manufactured by the manufacturing method of the present invention.

As a second aspect of the present invention, there is provided a crunch chip manufactured by any one of the above manufacturing methods.

In the crunch chip 100 of the present invention, the chip 120 may be irregularly distributed on the inner surface or the surface of the transparent layer 110 including the first resin. Preferably, an opaque, unsaturated polyester chip may be irregularly distributed on the inner surface or the surface of the transparent layer containing the transparent epoxy resin.

The crunch chip 100 can be manufactured by using two materials having different transparency. The crunch chip 100 provides a crunch chip 100 having a layered and cracked depth sense like a natural stone that can not be realized in a conventional chip Therefore, it is possible to improve the quality of the product by improving the appearance of the edges of the artificial marble and realizing a rich appearance.

The transparent layer 110 including the first resin may have a transparency of 80% to 100%, and preferably a transparency of 85% to 95%. This is to allow the chip 120 to be seen irregularly distributed on the inside or on the surface of the transparent layer 110.

If the transparency of the transparent layer 110 is less than 80%, chips scattered irregularly on the inner surface or the surface of the transparent layer 110 can not be seen, and a crunch chip having a layer like natural stone and having a sense of depth can not be provided.

The chip 120 may have a transparency of 30% to 80%, preferably 40% to 60%. In addition, the difference in transparency between the first resin and the chip may be 0% to 70%, and preferably 25% to 45%. If the transparency difference exceeds 70%, an artificial feeling may result.

The crunch chip of the present invention may have a specific gravity of 1.0 to 2.0, preferably 1.3 to 1.7, more preferably 1.65. When the specific gravity of the crunch chip is more than 2.0 less than 1.0, crunch chips are distributed only on one side of the slurry when the artificial marble including the following crunch chips is produced, which may cause the artificial marble to become unnatural.

As a third aspect of the present invention, there is provided an artificial marble comprising the crunch chip.

The artificial marble of the present invention is manufactured to solve the problems of natural marble, and has advantages of existing artificial marble such as high strength and various images, patterns, colors and the like, excellent workability and excellent weather resistance, By including the chip, it is possible to realize a rich depth feeling such as natural stone which is not realized in conventional artificial marble, such as layered and broken.

Specifically, the artificial marble comprises crunch chips 2 to 3 per 100 parts by weight of the artificial marble raw material including 100 parts by weight of the base resin syrup, 50 to 250 parts by weight of the inorganic filler, 0.1 to 10 parts by weight of the crosslinking agent, and 0.1 to 10 parts by weight of the polymerization initiator. 60 parts by weight.

As the base resin used for the artificial marble, thermosetting resins such as polyvinyl chloride (PVC), polystyrene (PS) and the like, epoxy resins and unsaturated polyesters can be used, and acrylic resins are particularly preferable as base resins .

The inorganic fillers used in the artificial marble are those conventionally used in artificial marble such as aluminum hydroxide, magnesium hydroxide, calcium aluminate, calcium carbonate, silica powder and alumina, and aluminum hydroxide is most preferable. The amount to be used is 50 to 250 parts by weight, and particularly preferably 100 to 200 parts by weight. When the content is below the lower limit, the viscosity tends to be too low and the hardness and surface hardness of the cured product tend to be lowered. At above the upper limit, the viscosity becomes high, which makes the work harder.

The amount of the crunch chips may vary depending on the size, but is preferably 2 to 60 parts by weight, and when the amount is less than 2 parts by weight, the appearance frequency on the surface is low, There is a tendency that problems such as increase of viscosity and deformation are caused and generation of bubbles on the back surface is increased.

The preferred viscosity of the artificial marble raw material is 30 to 100 Poise, but it is not particularly limited as it can be controlled by the use of an acrylic resin, especially a monomer having a low viscosity, or an additive, as well as the amount of the inorganic material and the chip to be used.

The artificial marble can be manufactured by a known artificial marble manufacturing method. Preferably, the artificial marble is produced by mixing a base resin, an additive and a crunch chip of the present invention, a base resin, an additive, and a crunch chip of the present invention, And a processing step of processing the cured mixture.

Hereinafter, the present invention will be described in detail with reference to specific examples. The examples are given for the purpose of helping understanding of the present invention, and the present invention is not limited to the examples.

[Example]

Manufacturing example 1: 2.5 to 3.5 / 6 - 10mesh Crunchy Produce

The crunch chip according to an embodiment of the present invention is prepared by mixing 100 parts by weight of a brominated epoxy resin as a first resin, 100 parts by weight of an unsaturated polyester resin and 160 parts by weight of aluminum hydroxide as chips, 50 parts by weight of a chip having a size of 3.5 mesh was mixed and then cured in a sheet form using a cell casting method and pulverized using a crusher.

The produced crunch chip had a size of 2 mm to 3.36 mm, the transparency of the transparent layer was 93%, the transparency of the chip was 60%, and the specific gravity was 1.65.

Manufacturing example 2: 10 to 16 / 16mesh or less Crunchy Produce

The crunch chip according to an embodiment of the present invention is prepared by mixing 100 parts by weight of a brominated epoxy resin as a first resin, 100 parts by weight of an unsaturated polyester resin with 160 parts by weight of aluminum hydroxide as a chip, 50 parts by weight of a chip having a size of 16 mesh was mixed, and the mixture was cured in a sheet form using a cell casting method and pulverized using a pulverizer.

The prepared crunch chip had a size of 1.19 mm, the transparency of the transparent layer was 93%, the transparency of the chip was 60%, and the specific gravity was 1.65.

Manufacturing example 3: Production of artificial marble according to the present invention

50 parts by weight of the crunch collector prepared in Preparation Example 1, 100 parts by weight of methylmethacrylate as a base resin, 0.01 part by weight of a dye, and 135 parts by weight of aluminum hydroxide as an inorganic filler were mixed and cured in a sheet form by a cell casting method, Artificial marble was fabricated using a processing machine, which is shown in Fig.

Manufacturing example 4: Manufacture of artificial marble according to the present invention

50 parts by weight of the crunch collector prepared in Preparation Example 2, 100 parts by weight of methyl methacrylate as a base resin, 0.01 part by weight of a coloring matter, and 135 parts by weight of aluminum hydroxide as an inorganic filler were cured in a sheet form by a cell casting method, Artificial marble was fabricated using a processing machine, which is shown in Fig.

S10: first mixing step
S20: First curing step
S30: First crushing step
100: Crunch chip
110: transparent layer
120: Chip

Claims

A first mixing step of mixing the first resin and the chip;
A first curing step of curing the first mixture in which the first resin and the chips are mixed; And
A first crushing step of crushing the first cured material of the first mixture;
Wherein the crunch chip is formed of a metal.

The method according to claim 1,
Wherein the first resin in the first mixing step is selected from the group consisting of an acrylic resin, an unsaturated polyester resin, an epoxy resin, a polyvinyl chloride, a polystyrene, a polycarbonate, a polyethylene terephthalate, and a styrene-methyl methacrylate copolymer Wherein the transparent resin is a transparent resin including at least one of the transparent resin and the transparent resin.

The method according to claim 1,
Wherein the first resin in the first mixing step is a transparent epoxy resin.

The method of claim 3,
Wherein the transparent epoxy resin comprises at least one selected from the group consisting of brominated epoxy and brominated epoxy acrylate.

The method according to claim 1,
Wherein the first resin in the first mixing step is of liquid or powder type.

The method of claim 1, wherein the chip of the first mixing step
A second mixing step of mixing the second resin and the inorganic filler;
A second mixing step of curing the second mixture in which the second resin and the inorganic filler are mixed; And
A second crushing step of crushing the second cured material of the second mixture;
The method of manufacturing a crunch chip according to claim 1,

The method according to claim 6,
Wherein the second resin in the second mixing step is selected from the group consisting of an acrylic resin, an unsaturated polyester resin, an epoxy resin, a polyvinyl chloride, a polystyrene, a polycarbonate, a polyethylene terephthalate, and a styrene-methyl methacrylate copolymer Wherein the resin is a colorless or colorless resin containing at least one of the above-mentioned resins.

The method according to claim 6,
And the second resin in the second mixing step is an unsaturated polyester resin.

The method according to claim 6,
And the second resin in the second mixing step is a liquid type.

The method according to claim 6,
Wherein the inorganic filler in the second mixing step is mixed in an amount of 100 to 200 parts by weight.

The method according to claim 6,
Wherein the chip of the second milling step is pulverized to have a size of 2.5 to 100 mesh.

The method according to claim 1,
Wherein the first mixing step comprises adding 20 parts by weight to 200 parts by weight of chips to 100 parts by weight of the first resin.

The method according to claim 1,
Wherein the curing method of the first mixture in the first curing step includes at least one curing method selected from a casting method, a pressing method, a vibration vibration method, and a UV curing method.

The method according to claim 1,
Wherein the first crushing step comprises grinding the first cured material to 3 to 35 mesh.

A crunch chip produced by the manufacturing method according to any one of claims 1 to 14.

16. The method of claim 15,
Wherein the crunch chip includes irregular chips on the inner surface or the surface of the transparent layer including the first resin.

The method of claim 16, wherein
Wherein the crunch chip has a difference in transparency between the transparent layer and the chip of 0% to 70%.

16. The method of claim 15,
Wherein the crunch chip has a specific gravity of 1.0 to 2.0.

An artificial marble comprising the crunch chip of claim 15.