KR101287249B1 - Construction Interior Material Using Ramie Stem - Google Patents

Abstract

The present invention provides an environmentally friendly building materials using ramie stem. Eco-friendly building interior material using ramie stem according to the invention is characterized in that the ramie stem board as a base.
According to the eco-friendly building interior material using ramie stem of the present invention, stable basic properties compared to plywood is secured, excellent price competitiveness compared to plywood through the wide production of ramie raw materials and the use of waste ramie stem, and secured supply and demand safety of raw materials. In addition, the use of environmentally friendly materials, such as ramie stems, does not generate VOC (volatile organic compounds) and HCHO (formaldehyde), which are toxic substances that cause sick house syndrome, and is environmentally friendly due to its excellent far-infrared radiation effect and surface texture. .

Description

Construction Interior Material Using Ramie Stem}

The present invention relates to an eco-friendly building interior material using ramie stems, and more particularly, to an environment-friendly building interior material using ramie stems that can secure a price competitiveness with excellent quality, environment-friendly, supply and demand stability.

As a conventional building interior material, gypsum board manufactured by mixing cement and gypsum powder asbestos as a tension material is mainly used. However, the gypsum board is sucked into the organs such as the lungs through the respiratory tract of the person living in the building using the gypsum board as the interior material as the gypsum powder is scattered in the hands or powdered state when handling according to the installation, bronchitis, etc. Asbestos, which is a carcinogen, is oxidized over time and scattered into the air, causing lung cancer and various cancers.

Therefore, wood, plywood, composite board (MDF, HDF) wood-based materials have been used in recent years, but the wood and plywood are tightening regulations on bumblebee trees as the concern about environmental destruction on the increase of carbon dioxide due to wood felling is amplified. There is a problem that supply and demand is unstable, there is a concern that the cost increase and resource depletion in the future, synthetic boards MDF, HDF has a high absorption thickness expansion rate and poor dimensional stability for the moisture, and because of the release of formaldehyde contained in the adhesive It is regarded as a typical building material causing the syndrome.

Accordingly, there is a need for a substrate to cope with the plywood, and as a requirement for the alternative substrate, the price must be lower than that of the plywood and the physical properties should be at the plywood level. In addition, the development of environmentally friendly building interior materials that complement the absorption thickness expansion rate and dimensional stability presented as a problem of composite boards (MDF, HDF) and to prevent harmful substances are urgently required.

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems,

The object of the present invention is to adopt an eco-friendly building interior material using linen stems that can improve the living environment by overcoming the shortcomings of synthetic boards and by eliminating harmful substances by adopting a reinforcement layer using linen stems to secure absorption thickness expansion rate and dimensional safety. To provide.

Another object of the present invention is to provide an environmentally friendly building interior material using a linen stem having excellent price competitiveness, safety of supply and demand of raw materials, and plywood level properties.

Environment-friendly building interior material using a ramie stem according to the present invention provided to achieve the above object is based on a ramie stem board, the printing layer and a variety of patterns printed on the substrate, the durability and wear resistance of the surface of the product, A surface treatment layer is laminated to improve scratchability, and a glass fabric layer for imparting heat resistance is formed between the printing layer and the surface treatment layer.

And, the substrate is characterized in that the fiber board is included. The fiber board is characterized in that the medium density fiberboard (MDF: Medium Density Fiberboard) or high density fiberboard (HDF: High Density Fiberboard).

In addition, the substrate is characterized in that the end plate is included.

Here, the ramie stem board is characterized in that the modified ramie stem powder and synthetic resin is mixed.

In addition, the ramie stem board is characterized in that 50 to 84 parts by weight of synthetic resin, 10 to 20 parts by weight of the additive is mixed with respect to 6 to 30 parts by weight of modified ramie stem powder.

In addition, the ramie stem board is characterized in that the modified ramie stems 6 to 30 parts by weight, synthetic resin 40 to 74 parts by weight, lime 10 to 20 parts by weight, additives 4 to 16 parts by weight.

The modified ramie stem powder is prepared by spraying 1 to 2 parts by weight of surface modifier with respect to 100 parts by weight of ramie stem powder at a temperature of 90 to 110 ℃, the surface modifier is silane KH550 or titanate NDZ-101: anhydrous alcohol = 1: characterized in that diluted to a weight ratio of 2 to 4.

In addition, the synthetic resin is characterized by consisting of at least one material selected from low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP).

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According to the eco-friendly building interior materials using ramie stem of the present invention, stable basic properties compared to the plywood is secured, excellent price competitiveness compared to plywood through the wide production of ramie raw materials and the use of waste ramie stem, and secured supply and demand safety of raw materials have.

In addition, the use of environmentally friendly materials, such as ramie stems, does not generate VOC (volatile organic compounds) and HCHO (formaldehyde), which are toxic substances that cause sick house syndrome, and is environmentally friendly due to its excellent far-infrared radiation effect and surface texture. It works,

In addition, there is an effect of realizing the comprehensive use of ramie raw materials, solving the problem of disposal of agricultural waste to improve the added value of agricultural products.

1 is a cross-sectional view showing an environmentally friendly building interior using a ramie stem according to an embodiment of the present invention.
2 to 4 are cross-sectional views showing other embodiments of the substrate layer of FIG.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. Hereinafter, with reference to the accompanying drawings will be described in detail the environmentally friendly building interior materials using a linen stem according to an embodiment of the present invention. For the purposes of this specification, like reference numerals in the drawings denote like parts unless otherwise indicated.

1 is a cross-sectional view showing an eco-friendly building interior material using a ramie stem according to an embodiment of the present invention, Figures 2 (a) to (d) to 4 (a) to 4 (b) are described in FIG. A cross-sectional view showing other embodiments of the layer is shown.

As shown in Figure 1, the building interior material according to an embodiment of the present invention is composed of a printed layer 200, a glass fabric layer 300, a surface treatment layer 400 is laminated on the base layer 100, Alternatively, the printed layer 200, the glass fabric layer 300, and the surface treatment layer 400 may be stacked on the substrate layer 100.

The base layer 100 is made of a ramie stem board (110).

The ramie stem board 110 is manufactured in the form of a board using a ramie stem.

The ramie stems are a waste of ramie fibers obtained from ramie grass, which are ground into fine powder or a slight coarse mesh. The ramie stem powder is preferably pulverized to a particle size of 20 to 100 mesh (mesh), it is preferable that the moisture content to be within 3% by removing the water of the milled ramie stem powder.

The ramie fiber is 6-20 cm in length, and the chewy is 4 times flax and 8 times more than cotton. Most of the ramie fibers are used as bast fiber part of the ramie as the upper fiber raw material of the textile, and the ramie stem and the epidermal part after peeling the ramie grass are treated as waste. As the wastes treated in this way occupy about two-thirds of the length of the wastes, they cause not only environmental pollution but also wasted resources. This line of discarded ramie stems are mostly made of fiber, among which is a ditch hollow steel, and the pipe wall has many holes. It is thin, long and durable, light in material, and quick to absorb and disperse moisture. Therefore, it is of sufficient value as a raw material to replace wood. It also plays an important role in improving the added value of agricultural products by utilizing agricultural resources and solving agricultural waste disposal problems, and lowering the cost of products due to the wide range of production and low price of raw materials.

The ramie stem board 110 is preferably manufactured by mixing a synthetic resin in the ramie stem powder. However, the ramie stems are plant fibers, and the plant fibers have a strong polarity and are incompatible with plastics.

Therefore, in order to solve the compatibility problem of the ramie stem powder and synthetic resin, a modified ramie stem powder is prepared by spraying 1 to 2 parts by weight of the surface modifier with respect to 100 parts by weight of ramie stem powder at a temperature of 90 ℃ to 110 ℃. Here, the surface modification agent is diluted in a weight ratio of silane KH550 or titanate NDZ-101: anhydrous alcohol = 1: 2 to 4.
Here, the silane KH550 is the chemical name of 3-aminopropyltriethoxysilane, CAS NO: 919-30-2, molecular formula: NH2 (CH2) 3Si (OC2H5) 3, excellent adhesion improving agent and latex and amino silicone oil. Used to produce. This product is referred to in the art as silane KH550 for the use of coatings, adhesives and sealants.
In addition, the titanate surface modification agent NDZ-101 is a titanate base coupling agent and refers to isopropyl dioleic acid (dioctyl phosphate) titanate as one type of tetrabutyl titanate.

The modified ramie stems thus prepared are mixed with synthetic resin.

Here, the synthetic resin is selected from polypropylene (PP, Polypropylene), polyethylene (PE, Poly Ethylene), polystyrene (PS, Polystyrene), polyethylene derephthalate (PET, Poly Ethylene Terephthalate), ABS (Acrylonitrile Butadiene Styrene resin) or Use two or more materials.

The synthetic resin enhances physical properties such as water resistance, heat resistance, impact strength, flexural strength when mixed with the modified ramie stem.

The material of the ramie stem board 110 may further include an additive. In more detail, it is preferable that 50-84 weight part of synthetic resins, and 10-20 weight part of additives mix with respect to 6-30 weight part of modified ramie stem powders.

Here, the additives include a compatibilizer, a lubricant, an antioxidant, a flame retardant, and the like, and include at least one functional material selected from charcoal, red earth, silver, elvan, germanium, magnetite, jade, fungicide, and insect repellent.

In addition, the material of the ramie stem board 110 may further include lime. More specifically, it is preferable that 40 to 74 parts by weight of synthetic resin, 10 to 20 parts by weight of lime, and 4 to 16 parts by weight of additives are mixed with 6 to 30 parts by weight of modified ramie stem powder.

The lime improves the water problem contained in the ramie stem. When a certain amount of the lime is used, a separate work or process for removing moisture is unnecessary, and the problem of reabsorbing moisture in the air after drying can be solved. In addition, the non-combustible effect and durability are increased and are less affected by temperature.

The method of manufacturing the ramie stem board 110 comprises the steps of grinding the ramie stems with ramie stems of 20 to 100 mesh, drying the water content of the milled ramie stems to be within 3% and drying synthetic resin separately, Putting the dried ramie stem powder into a kneader and spraying a surface modifier and kneading at a temperature of 90 ° C. to 110 ° C. for 40 to 60 minutes, and putting the kneaded ramie stem into a high-speed mixer and mixing it for 15 to 20 minutes. Preparing a stem, mixing 50 to 84 parts by weight of the dried synthetic resin, 4 to 16 parts by weight of additives, and 10 to 20 parts by weight of lime, based on 6 to 30 parts by weight of the modified modified ramie stem, the mixed composite material It is made to extrude.

The ramie stem board manufactured by the above method is environmentally friendly by using eco-friendly materials that are ramie stems, which is environmentally friendly, has low absorption thickness expansion rate, high dimensional stability, excellent physical properties, low raw material cost, and recyclable circulation. It is possible.

As shown in FIG. 2, the base layer formed of the ramie stem board 110 may include a fiber board 120.

As the fiber board 120, a medium density fiber board (MDF) or a high density fiber board (HDF) is used, and particularly, a high density fiber board (HDF) is preferably used. The fiber plate 120 complements the rigidity and physical properties of the ramie stem board 110, has no orientation, and is very inexpensive compared to plywood.

Therefore, the base layer 100 may be made of a ramie stem board 110, a fiber board 120, as shown in Figure 2a, a ramie stem board 110, a fiber board 120 as shown in Figure 2b ), May be made of a ramie stem board 110, it may be made of a fiber plate 120, a ramie stem board 110, a fiber plate 120 as shown in FIG.

In addition, the base layer consisting of the ramie stem board may include a single plate 130.

As the end plate 130, a veneer end plate used for plywood is used, and the end plate is usually cut to a thickness of 1.2 to 4.8 mm, but may be adjusted to an appropriate thickness according to the structure of a specific building interior material.

The end plate 130 is cheaper than plywood, complements the rigidity and physical properties of the ramie stem board 110, and improves dimensional stability and absorption thickness expansion rate.

Thus, the base layer 100 may be made of a ram stem board 110, a single plate 130, as shown in Figure 3a, a ram stem board 110, a single plate 130 as shown in Figure 3b It may be made of a ramie stem board 110, it may be made of a end plate 130, a ramie stem board 110, a end plate 130 as shown in FIG.

In addition, the base layer 100 formed of the ramie stem board 110 may include both the fiber plate 120 and the end plate 130.

That is, as shown in Figure 5a from the top may be made of a ram stem board 110, a fiber plate 120, a end plate 130, as shown in Figure 5b a fiber board 120, a ram stem board (from above) 110, may be made of end plate 130, it may be made of a top plate 130, a ramie stem board 110, a fiber plate 120 from above as shown in FIG.

The print layer 200 may be formed on the base layer 100 having the above configuration.

The print layer 200 is a layer for decorative decoration of the building interior material, is formed by printing a variety of patterns on the calendering synthetic resin sheet. The printing may be formed by gravure coating, nip coating, bar coating, silk screen printing, or transfer printing.

In addition, the print layer 200 may be formed by forming a primer layer for imparting printability on the base layer 110, by printing a variety of patterns on the primer layer. The primer layer may be a corona discharge treatment layer or a transparent coating layer coated with a synthetic resin composition, and the synthetic resin composition may be a composition based on polyurethane or acrylic synthetic resin.

In addition, a glass fabric layer 300 may be formed on the printed layer 200.

The glass fabric layer 300 is manufactured by fusing a filament of 0.5 to 10 denier thickness by heat melting spinning a glass material and twisting it into several strands to produce a glass yarn, and then weaving it into a continuous fabric and then forming a PVC sol. It is used as a binder and thermo-plywooded with a PVC substrate. The glass fabric layer 300 serves to impart heat resistance.

 In addition, a surface treatment layer 400 may be formed on the glass fabric layer 300.

The surface treatment layer 400 is a layer for improving durability, abrasion resistance, and scratch resistance of the surface of the product, and is formed by applying a urethane acrylate-based UV-curable resin having a strong stain resistance to the surface of the product, followed by ultraviolet curing. Or it is formed by applying melamine resin, urea resin, acrylic resin and heat curing.

[Example]

From above, the ramie stem board 110, the fiber board 120, the ramie stem board 110 were integrated to form a base material 100 for building interior materials. At this time, the ramie stem board 110 is applied to the upper layer and the lower layer has a specific gravity of 0.9, a thickness of 3.5mm, a water content of 2.5%, the fiber board 120 has a specific gravity of 0.7, a water content of 5%, a thickness of 3mm. Was used, and the adhesive used melamine resin. The substrate 100 was laminated with each layer, and then integrated using a press having a pressure of 7 kgf / cm 2, a press time of 7 minutes, and a hot plate temperature of 120 ° C.

Comparative Example 1

Building interior materials based on plywood.

Comparative Example 2

Building interior materials based on HDF.

[Test Example]

Dimensional stability and absorption thickness expansion ratio were measured for the building interior materials of Examples and the building interior materials of Comparative Examples 1 and 2, and the results are shown in Table 1.

The absorption expansion rate of the building interior materials prepared in Examples was superior to those of the building interior materials of Comparative Examples 1 and 2. In addition, the dimensional stability measured the dimensional change before and after 48 hours in the immersion conditions in the room temperature water bath and oven drying conditions of high temperature (80 ℃).

Here, the absorption thickness expansion rate was measured by comparing the thickness before and after immersion in 20 ℃ water for 24 hours, 70 ℃ water for 2 hours in a constant temperature bath according to KSF 3200 standard.

        Test Items  Example  Comparative Example 1  Comparative Example 2 size
stability

Cold water immersion
48 hours  width   0.20   0.22   0.26  Length   0.10   0.11   0.18 High temperature (80 ℃)
48 hours of drying  width  -0.18  -0.26  -0.48  Length  -0.16  -0.20  -0.36 Absorption Thickness Expansion Rate 20 ℃ 24 hours   6.35   7.73   32.02 70 ℃ 2 hours   18.12   28.64  148.04

The dimensional stability shows better results as the temperature nears zero for both immersion and high temperature drying conditions. That is, in the case of Example, physical properties similar to Comparative Example 1 were shown in the normal temperature immersion width direction and the longitudinal direction, and showed better results than Comparative Example 2. And the Example showed the best result in high temperature drying conditions.

In the case of the absorption thickness expansion ratio, the examples showed the best values at 20 ° C 24 hours and 70 ° C 2 hours.

As described above, the present invention uses the ramie stem board 110 as the base material 100, thereby securing stable basic physical properties compared to the plywood, and is excellent in price competitiveness compared to plywood due to the wide production of ramie raw materials and the utilization of waste ramie stems. Supply and demand safety is secured.

In addition, since it is made of linen stem, which is an environmentally friendly material, VOC (volatile organic compound) and HCHO (formaldehyde), which are toxic substances that cause sick house syndrome, are not generated, and far infrared rays are radiated to improve living environment.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. That is, those skilled in the art to which the present invention pertains can make many changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications Equivalents should be considered to be within the scope of the present invention.

100: base layer 110: ramie stem board
120: fiber board 130: single plate
200: printed layer 300: glass fabric layer
400: surface treatment layer

Claims (15)

It is based on a ramie stem board, and a printed layer on which various patterns are printed, and a surface treatment layer are laminated on the substrate to improve durability, wear resistance and scratch resistance of the product surface, and between the print layer and the surface treatment layer. An eco-friendly building interior material using ramie stems, characterized in that the glass fabric layer is formed to give heat resistance. The method of claim 1,
Eco-friendly building interior material using a ramie stem, characterized in that the substrate includes a fiberboard. The method of claim 1,
Eco-friendly building interior materials using linen stems, characterized in that the base plate is included in the base material. The method according to any one of claims 1 to 3,
The ramie stem board is an eco-friendly building interior material using ramie stems, characterized in that the modified ramie stem and synthetic resin is mixed. 5. The method of claim 4,
The modified ramie stem powder is prepared by spraying 1 to 2 parts by weight of surface modifier with respect to 100 parts by weight of ramie stem powder at a temperature of 90 to 110 ℃, the surface modifier is silane KH550 or titanate NDZ-101: anhydrous alcohol = 1: Eco-friendly building interior materials using linen stems, characterized in that diluted to a weight ratio of 2 to 4. 5. The method of claim 4,
The synthetic resin is environmentally friendly building interior material using linen stem, characterized in that made of at least one material selected from low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP). The method according to any one of claims 1 to 3,
The ramie stem board is an environmentally friendly building interior material using ramie stems, characterized in that 50 to 84 parts by weight of synthetic resin, 10 to 20 parts by weight of additives are mixed with respect to 6 to 30 parts by weight of modified ramie stem powder. The method of claim 7, wherein
The modified ramie stem powder is prepared by spraying 1 to 2 parts by weight of surface modifier with respect to 100 parts by weight of ramie stem powder at a temperature of 90 to 110 ℃, the surface modifier is silane KH550 or titanate NDZ-101: anhydrous alcohol = 1: Eco-friendly building interior materials using linen stems, characterized in that diluted to a weight ratio of 2 to 4. The method of claim 7, wherein
The synthetic resin is environmentally friendly building interior material using linen stem, characterized in that made of at least one material selected from low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP). The method according to any one of claims 1 to 3,
The ramie stem board is an environment-friendly construction using a ramie stem, characterized in that the modified ramie stems 6 to 30 parts by weight, synthetic resin 40 to 74 parts by weight, lime 10 to 20 parts by weight, additives 4 to 16 parts by weight are mixed Interior materials. 11. The method of claim 10,
The modified ramie stem powder is prepared by spraying 1 to 2 parts by weight of surface modifier with respect to 100 parts by weight of ramie stem powder at a temperature of 90 to 110 ℃, the surface modifier is silane KH550 or titanate NDZ-101: anhydrous alcohol = 1: Eco-friendly building interior materials using linen stems, characterized in that diluted to a weight ratio of 2 to 4. 11. The method of claim 10,
The synthetic resin is environmentally friendly building interior material using linen stem, characterized in that made of at least one material selected from low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP). 3. The method of claim 2,
The fiberboard is an eco-friendly building interior material using a ramie stem, characterized in that the medium density fiberboard (MDF: Medium Density Fiberboard) or high density fiberboard (HDF: High Density Fiberboard). delete delete

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