KR20130104390A - Wall panel using poly lactic acid resin - Google Patents

Wall panel using poly lactic acid resin Download PDF

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Publication number
KR20130104390A
KR20130104390A KR1020120025840A KR20120025840A KR20130104390A KR 20130104390 A KR20130104390 A KR 20130104390A KR 1020120025840 A KR1020120025840 A KR 1020120025840A KR 20120025840 A KR20120025840 A KR 20120025840A KR 20130104390 A KR20130104390 A KR 20130104390A
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KR
South Korea
Prior art keywords
layer
weight
parts
pla resin
covering material
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KR1020120025840A
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Korean (ko)
Inventor
김지웅
Original Assignee
(주)엘지하우시스
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Priority to KR1020120025840A priority Critical patent/KR20130104390A/en
Publication of KR20130104390A publication Critical patent/KR20130104390A/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0866—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements composed of several layers, e.g. sandwich panels or layered panels

Abstract

The present invention protects the environment by using a PLA resin, which is an environmentally friendly material, relates to a closet material having a soft touch and excellent workability, the base layer; A surface layer consisting of a reinforcing layer, a printing layer, and a transparent layer is laminated on the upper surface of the base layer, and these surface layers are composed of PLA resin, and the reinforcing layer and the transparent layer constituting the surface layer are molded of PLA resin, It is a technical feature that one or more of phthalate-based plasticizers, fillers, lubricants, chain extenders, hydrolysis agents are added.

Description

Wall panel using poly lactic acid resin

The present invention relates to a closet installed in the interior of a building structure, and more particularly, to protect the environment using PLA resin, which is an environmentally friendly material, and to a closet that has a soft touch and excellent workability.

In general, the wallboard is an interior material that is prefabricated in the interior of the building by implementing a pattern of marble, wood, brick, etc. on one side of MDF, HDF or wood.

Unlike wall papers, such wallboard materials can be constructed without using adhesives, which is convenient to work with, and has the advantage of suppressing the discharge of harmful substances. In particular, in recent years, photocatalyst and silver nano are used to suppress the occurrence of sick house syndrome and atopy. Added products are also being developed.

However, conventional closet materials still have many problems.

For example, the accompanying Figure 1 illustrates a conventional closet. This closet 10 uses a high density fiber board (HDF) or a medium density fiber board (MDF) as the base layer 12, and has a melamine impregnated paper 14 on its upper surface, and the upper surface of this paper 14 The melamine impregnated overlay sheet layer 16 is laminated on the back, and the melamine impregnated base layer 18 is provided on the bottom of the base layer 12 for balance.

However, thermosetting melamine resins are sensitive to moisture and have a strong cold feeling rather than a warm feeling, and have partial disadvantages such as being easily broken or taken when an impact is applied by a certain load or a sharp object.

In addition, the surface is expressed in an artificial printing form is a lot of texture, there is a problem to pollute the environment at the time of disposal.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is a wall covering material using a PLA resin that can improve a natural texture by forming a surface layer adhered to an upper surface of a base layer of HDF or MDF with a natural resin, that is, a PLA resin. To provide.

Another object of the present invention is made of HDF or MDF, and has the advantages of abrasion resistance, durability, fouling resistance, processability and excellent base layer, nature-friendly and there is no heterogeneity, to minimize the generation of harmful substances during disposal to prevent secondary environmental pollution It is to provide a closet material that can at the same time obtain the advantages of PLA resin.

In addition, the present invention is to provide a closet material that is resistant to moisture and has a natural printed layer and at the same time convenient in construction and easy to manufacture.

The present invention is a closet installed on the interior wall of the building, the base layer; A surface layer consisting of a reinforcing layer, a printing layer, and a transparent layer is laminated on the upper surface of the base layer, and these surface layers are composed of PLA resin, and the reinforcing layer and the transparent layer constituting the surface layer are molded of PLA resin, It is a technical feature that one or more of phthalate-based plasticizers, fillers, lubricants, chain extenders, hydrolysis agents are added.

In the present invention, the base layer is composed of HDF or MDF, which has high wear resistance, durability, and stain resistance and is excellent in workability, and at the same time obtains the natural texture of the surface layer, and is an environmentally friendly closet material.

In addition, the present invention by using the PLA resin to reduce the discharge of harmful substances when discarded to prevent secondary environmental pollution, improve the surface strength, the feel is soft, there is an effect that can improve the interlayer noise.

In addition, the present invention can be constructed in a prefabricated manner without using an adhesive, the construction is convenient, there is an effect that can reduce the cost and feel intimacy using a natural resin.

1 is a cross-sectional view showing an example of a conventional closet,
2 is an exploded cross-sectional view of a closet according to the present invention;
3 is a cross-sectional view of the closet according to the invention,
4 is an enlarged cross-sectional view of main parts of a closet according to the present invention;
5 is a cross-sectional view showing another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the attached Figure 2 is an exploded cross-sectional view of the closet according to the invention, Figure 3 is a cross-sectional view of the closet according to the invention, Figure 4 shows an enlarged cross-sectional view of the main part of the closet according to the invention, Figure 5 Another embodiment of the invention is shown.

In the drawing, the wall covering material 10 of the present invention is constructed by using a high density fiber board (HDF) or a medium density fiber board (MDF) as the base layer 100 and stacking the surface layer 200 on the upper surface of the base layer 100. In addition, the surface layer 200, the reinforcing layer 210, the printing layer 220, the transparent layer 230 is composed of PLA resin or at least one of them is composed of PLA resin, in another embodiment, A surface treatment layer 240 stacked on the upper surface of the transparent layer 230 may be provided, and a base layer provided on the bottom surface of the base layer 100 may be provided, and these may be made of PLA resin. This will be described later.

The closet 10 of the present invention basically includes a base layer 100, an adhesive layer 202, a reinforcement layer 210, a print layer 220, and a transparent layer 230.

The base layer 100 is composed of one of MDF, HDF or plywood, and double MDF and HDF are made of plywood by mixing wood glue and flattening them into flat powder as already known.

MDF has a uniform fiber distribution over the entire thickness and a dense texture, enabling complex machining operations without face or side rupture. Its solid and smooth surface makes it ideal for overlaying or painting decorative films, veneers, etc., and because of its excellent stability, machinability, and high strength, the cabinets, cabinet rails, mirror frames, moldings, as well as closets like the present invention. Can be used as ash.

HDF is a high-density fiberboard with a density of 900kg / m or more, which is much higher than MDF in terms of strength, and is widely used as a substitute for plywood, and is widely used for furniture, flooring, and closet materials.

In addition, the PLA (Polylactic acid) resin constituting the surface layer 200, such as the adhesive layer 202, reinforcement layer 210, transparent layer 230 of the present invention is a thermoplastic polyester of lactide or lactic acid, starch extracted from corn, potato, etc. It is produced by polymerizing lactic acid produced by fermentation.

The characteristics of the PLA resin can be regenerated as much as possible to solve the problems caused by exhaustion of petroleum resources, and even in the process of disposal, the emission of environmentally harmful substances is much lower than other resins such as vinyl chloride, and has a fast decomposition speed.

The PLA resin may be classified into a crystalline PLA (c-PLA) resin and an amorphous PLA (a-PLA) resin, in the case of the crystalline PLA resin plasticizers may flow to the surface of the sheet may occur, so the amorphous PLA in the present invention Resin is used.

In the case of using an amorphous PLA resin, it is preferable to use an 100% amorphous PLA resin, but if necessary, a PLA resin in which crystalline and amorphous coexists may be used.

The PLA resin may include an acrylic copolymer, calcium carbonate, silica gel, and titanium oxide as a non-phthalate plasticizer or a filler to reinforce melt strength when molded.

The plasticizer is an additive used to exhibit physical properties suitable for use, such as processability and flexibility according to resin molding. In particular, in the present invention, a nonphthalate plasticizer is used that is not harmful to the human body.

In addition, the reinforcing layer 210 and the transparent layer 230 constituting the present invention, at the time of molding, at least one or more lubricant, chain extender, hydrolysis agent, etc. may be added to the PLA resin.

In this case, the lubricant is hydrocarbon, polyethylene, silicone fluid, as well as environmentally friendly higher fatty acids, but one example is stearic acid, a higher fatty acid having 18 carbon atoms.

Hydrolysis agents may be used carbodiimide or oxane sleepy or polycarbodiimide.

In other words, 5 to 70 parts by weight of a nonphthalate plasticizer is used for the reinforcement layer 210 and the transparent layer 230, and 100 parts by weight of the PLA resin, and the filler is 100 parts by weight of the calcium carbonate or titanium oxide or acrylic copolymer. It is preferably mixed at a ratio of 1 to 20 parts by weight, and a lubricant is used at 0.01 to 5 parts by weight based on 100 parts by weight of the PLA resin.

In addition, the chain extender and the hydrolysis agent may optionally be used 0.01 to 10 parts by weight based on 100 parts by weight of the PLA resin.

Preferably, the base layer 100 is preferably 10 to 90 mm, the reinforcing layer 210 is 0.1 to 20 mm, and the printed layer 220, the transparent layer 230 is a surface treatment layer 240 added to another embodiment Is preferably produced in 0.01 to 10mm.

The adhesive layer 202 bonding the base layer 100 and the surface layer 200 is based on a PLA resin, and in some cases, a thermosetting melamine resin may be used, and an application amount of 50 to 200 g / m 2 is preferable.

In the present invention, the print layer 220 may be used in various ways such as gravure printing, rotary printing, transfer printing.

Meanwhile, the present invention may have a surface treatment layer 240 on an upper surface of the transparent layer 230. The surface treatment layer 240 is used to prevent scratches or surface contamination. Like other surface layers described above, a PLA resin or a thermosetting or UV curable UV composition is used, and silica, clay minerals, ceramics, etc. This may be included. The ratio at this time may be included in a ratio of 0.1 to 20 parts by weight based on 100 parts by weight of the composition.

The following is an embodiment of the present invention.

The closet 10 of the present invention is composed of one of HDF, MDF or plywood, and is produced by pressing the surface layer 200 made of PLA resin on the upper surface of the base layer 100.

Example 1

The base layer 100 is constituted by MDF having a thickness of 80 mm, and an adhesive layer 202 is formed by applying a PLA resin adhesive in an amount of 150 g / m 2 on the upper surface of the base layer 100.

The reinforcing layer 210 adhered to the upper surface of the adhesive layer 202 is 15 parts by weight of a nonphthalate plasticizer, 7 parts by weight of an acrylic copolymer, 0.03 parts by weight of stearic acid, 0.01 part by weight of a chain extender, and 100 parts by weight of PLA resin. In a structure in which 0.02 parts by weight of the body imide is mixed, the thickness is 5 mm and supplied to the rolling rollers arranged over the primary and secondary parts and pressed.

The printing layer 220 of the upper surface of the reinforcing layer 210 is made of a gravure printing method, the transparent layer 230 is 1mm thickness 20 parts by weight of non-phthalate plasticizer, 100 parts by weight of PLA resin, 2 parts by weight of calcium carbonate, oxidation 8 parts by weight of titanium, 0.03 part by weight of stearic acid, 0.01 part by weight of a chain extender, and 0.01 part by weight of carbodiamide are mixed and molded, and are also pressed and supplied by a rolling roller.

Example 2

The base layer 100 is composed of 85 mm thick HDF, and an adhesive layer 202 is formed by applying an adhesive of melamine resin in an amount of 150 g / m 2 on the upper surface of the base layer 100.

The reinforcing layer 210 adhered to the upper surface of the adhesive layer 202 is 10 parts by weight of non-phthalate plasticizer, 7 parts by weight of acrylic copolymer, 0.02 parts by weight of stearic acid, 0.01 parts by weight of chain extender, and 100 parts by weight of PLA resin. 0.01 weight part of body imides are mixed, it is 4 mm in thickness, it is supplied to a rolling roller, and it presses.

The printing layer 220 of the upper surface of the reinforcing layer is made of a gravure printing method, the transparent layer 230 having a thickness of 1mmm is 20 parts by weight of a non-phthalate plasticizer, 2 parts by weight of calcium carbonate, 8 parts by weight of titanium oxide based on 100 parts by weight of PLA resin To this, 0.03 part by weight of stearic acid, 0.01 part by weight of a chain extender, and 0.01 part by weight of carbodiamide are mixed and molded, which is also pressed and supplied by a rolling roller.

The surface treatment layer 240 was applied to the upper surface of the transparent layer 230, but the urethane acryl-based UV curable composition was applied to complete the wall covering.

10: closet 100: base layer
200: surface layer 210: reinforcement layer
220: printed layer 230: transparent layer
240: surface treatment layer

Claims (8)

As a wall covering material to be installed on the interior wall of a building,
Base layer;
Wall covering material using a PLA resin, characterized in that the surface layer consisting of a reinforcing layer, a printing layer, a transparent layer laminated on the upper surface of the base layer, these surface layers are composed of PLA resin. The reinforcing layer and the transparent layer constituting the surface layer are formed of a PLA resin, wherein at least one of a nonphthalate plasticizer, a filler, a lubricant, a chain extender, and a hydrolysis agent is added to the PLA resin. Enclosure using PLA resin. According to claim 1, wherein the reinforcing layer and the transparent layer is PLA resin, characterized in that 5 to 70 parts by weight of non-phthalate plasticizer, 1 to 20 parts by weight of filler, 0.01 to 5 parts by weight of lubricant based on 100 parts by weight of PLA resin Used closet. The method of claim 1, wherein the reinforcing layer and the transparent layer is mixed with 0.01 to 10 parts by weight of lubricant, 0.01 to 5 parts by weight of chain extender, 0.01 to 10 parts by weight of hydrolysis agent, and squeezed the rolling roller Wall cabinet using PLA resin, characterized in that molded. According to claim 1, wherein the base layer is composed of MDF, to which a reinforcing layer is adhered by applying an adhesive at 150g / ㎡, this reinforcing layer is 15 parts by weight of the non-phthalate plasticizer, acrylic air 7 parts by weight of a mixture, 0.03 parts by weight of stearic acid, 0.01 parts by weight of a chain extender, 0.02 parts by weight of carbodiimide, a wall covering material using a PLA resin. The printing layer of the upper surface of the reinforcing layer is a gravure printing method, the transparent layer is 20 parts by weight of a non-phthalate plasticizer, 2 parts by weight of calcium carbonate, 8 parts by weight of titanium oxide, stearic acid based on 100 parts by weight of PLA resin 0.03 part by weight, 0.01 part by weight of a chain extender, 0.01 part by weight of carbodiamide is molded, the wall covering material using a PLA resin characterized in that the molded. The wall covering material using PLA resin according to claim 1, wherein a surface treatment layer is provided on an upper surface of the transparent layer, and the surface treatment layer is coated with a urethane acryl-based UV curable composition. The wall covering material using PLA resin according to claim 1, wherein the base layer is one of MDF, HDF or plywood.
KR1020120025840A 2012-03-14 2012-03-14 Wall panel using poly lactic acid resin KR20130104390A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110722861A (en) * 2019-11-09 2020-01-24 安徽丰原乳酸聚酯材料有限公司 Alkali lignin polylactic acid resin composite environment-friendly board and preparation method thereof
GB2584110A (en) * 2019-05-21 2020-11-25 Vtec Group Ltd Warp resistant covering

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2584110A (en) * 2019-05-21 2020-11-25 Vtec Group Ltd Warp resistant covering
CN110722861A (en) * 2019-11-09 2020-01-24 安徽丰原乳酸聚酯材料有限公司 Alkali lignin polylactic acid resin composite environment-friendly board and preparation method thereof

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