KR100928702B1 - Synthetic wood composition and preparing method thereof - Google Patents

Abstract

PURPOSE: An environment-friendly synthetic timber and a fabrication method thereof are provided to emit far-infrared rays for health improvement. CONSTITUTION: An environment-friendly synthetic timber comprises: pulverized natural wood powder; polypropylene(PP) or high density polyethylene(HDPE); maleic anhydride PP as a binder; phosphate-based antioxidant and calcium stearate; bis-2,2,6,6-tetramethyl-4-piperidil as a photostabilizer; 2-(2'-hydroxy-3'-tert-butyl-5'-methyl-phenyl)-5-chlorobenzotriazol as a UV-absorber; polyethylene wax or polypropylene wax; one or more selected from the group consisting of jade, germanium, hardwood charcoal, loess, magnesium oxide, calcium oxide, aluminium oxide, and ferric oxide; and inorganic pigment.

Description

Environment-friendly synthetic wood composition and method for producing synthetic wood using same {Synthetic wood composition and preparing method

The present invention relates to an environmentally friendly synthetic wood composition and a method for producing a synthetic wood using the same,

In a synthetic wood composition composed of wood powder and synthetic resins used as exterior materials or interior materials of buildings such as floorboards, ceiling boards, doors, door frames, windows, and FENCE;

Due to the synthetic wood composition of the composition of the present invention and a method for producing a synthetic wood using the same,

Water resistance, impact strength, flexural strength and weather resistance properties are enhanced compared to prior art wood or synthetic wood;

In particular, environmentally friendly materials are not generated, and far-infrared materials are radiated to reduce the costs by improving the health of the human body and using them as renewable raw materials.

The present invention relates to an eco-friendly synthetic wood composition and a method for producing a synthetic wood using the same, having an excellent natural texture effect, and easy to manufacture, thereby improving workability.

In general, natural wood is mainly used as exterior materials or interior materials of buildings such as floorboards, ceiling boards, doors, door frames, windows and fences.

The reason why natural wood is mainly used as interior and exterior materials of the building is because the consumer's preference for wood and aesthetics due to natural texture are improved.

However, the interior and exterior materials of the building using the natural wood is a problem of environmental damage due to forest damage and the release of harmful substances in the event of fire,

In particular, the water resistance, heat resistance, impact strength, flexural strength, dimensional stability, flame retardancy, weather resistance, antibacterial properties due to the inherent properties of wood is reduced, making it difficult to use as a building exterior material,

The antimicrobial activity of the wood material is reduced to shorten the life, and the copper, arsenic, and chromium-based antiseptics (called CCA preservatives) for the purpose of enhancing the antimicrobial properties are mixed and used.

Therefore, when a fire occurs, toxic substances caused by the combustion of the preservatives of the copper, arsenic, and chromium systems are discharged and are harmful to the human body.

In order to solve the above problems, recently synthetic wood having a texture and appearance similar to natural wood is widely used as interior and exterior materials of buildings;

The synthetic wood is a powdered wood flour powdered by grinding the fiber, such as wood or crest, corn stalk, pulp,

Synthetic wood compositions having a composition in which wood polyvinyl chloride (PVC) resin, which is a representative thermoplastic resin having excellent workability, are mixed, are manufactured and used as interior and exterior materials by extrusion processing.

Synthetic wood composed of the composition as described above is used as the interior and exterior materials of the building, water and heat resistance, dimensional stability, flame retardancy, antibacterial properties are improved compared to natural wood, and the price is cheaper, there is an effect of reducing the manufacturing cost,

When the building processed with the composition is installed outdoors, the weather resistance property due to the material properties is degraded, and the natural texture effect is reduced because the surface layer of the processed building is composed of an artificial wood pattern layer. Hazardous substances are generated when installed and used as interior and exterior materials of buildings, sick house syndrome, and chlorine gas is discharged to the outside during a fire, which is harmful to the human body.

Therefore, compared with the natural wood or synthetic wood of the prior art, water resistance, impact strength, bending strength, weather resistance properties are enhanced, and no harmful substances are generated in an environmentally friendly manner, and far-infrared materials are radiated to improve the health of the human body and recycled materials. Synthetic wood composition and composition that can be used to reduce the cost,

There is an urgent need to develop a method for producing synthetic wood having excellent natural texture effect and easy manufacturing thereof, thereby improving workability.

In a synthetic wood composition consisting of wood powder and synthetic resin mixed;

Due to the synthetic wood composition of the composition of the present invention and a method for producing a synthetic wood using the same,

Water resistance, impact strength, flexural strength, weather resistance properties are enhanced compared to the prior art wood or synthetic wood,

In particular, environmentally friendly toxic substances are not generated, the far-infrared substance is radiated to improve the health of the human body, and the processed product processed with the composition of the present invention can be used as recycled raw materials after use, eco-friendly composition of cost saving Synthetic wood composition;

It is an object of the present invention and the subject of the present invention to provide a method for producing an environmentally friendly synthetic wood of an excellent natural texture effect, and its composition is easy to improve the workability.

The above object is solved by the environmentally-friendly synthetic wood composition and the manufacturing method of the synthetic wood using the same which consist of this invention.

Due to the eco-friendly synthetic wood composition of the composition of the present invention and a method for producing a synthetic wood using the same,

Water resistance, impact strength, flexural strength and weather resistance properties are enhanced compared to prior art wood or synthetic wood;

In particular, environmentally friendly toxic substances are not generated, the far-infrared substance is radiated to improve the health of the human body, and the processed product processed by the composition of the present invention can be used as a regenerated raw material after use, thereby reducing the cost,

It is a very useful invention that brings about an excellent natural texture effect and easy production thereof, resulting in an improved workability.

The present invention relates to an environmentally friendly synthetic wood composition and a method for producing a synthetic wood using the same, wood flour and synthetic resin, which is used as exterior materials or interior materials of buildings such as floorboards, ceiling boards, doors, door frames, windows, fences (FENCE) In a synthetic wood composition composed of;

Due to the eco-friendly synthetic wood composition of the composition of the present invention and a method for producing a synthetic wood using the same,

Water resistance, impact strength, flexural strength, weather resistance properties are enhanced compared to the synthetic wood or wood of the prior art,

In particular, environmentally friendly VOC (Volatile Organic Compounds) and HCHO (formaldehyde), which are toxic substances that cause the development of bird concentration, are not generated, and far-infrared materials are radiated to enhance the health of the human body and process the composition of the present invention. As the processed product can be used as recycled raw material after use, it can reduce the cost,

The present invention relates to an environmentally friendly synthetic wood composition and a method for producing a synthetic wood using the same, having an excellent natural texture effect, and easy to manufacture, thereby improving workability.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the environment-friendly synthetic wood composition and a method for producing a synthetic wood using the same.

1 is a perspective drawing photograph of the drawing of a fence that is a building processed with the synthetic wood composition of the present invention,

Figure 2 is a flow-sheet illustrating the synthetic wood composition of the present invention and a method for producing synthetic wood step by step,

Figure 3 is a schematic diagram showing a manufacturing method and apparatus for producing a synthetic wood composition of the present invention in a ferret,

Figure 4 is a schematic diagram showing a manufacturing method and apparatus for manufacturing the base material of the synthetic wood of the present invention,

5 is a schematic view showing a manufacturing method and apparatus for producing a surface layer on a substrate.

As shown in Figure 1;

Environmentally friendly synthetic wood compositions of the present invention (hereinafter referred to as synthetic wood compositions), used as exterior or interior materials for buildings such as floorboards, ceiling boards, doors, door frames, windows and fences;

Based on 100% by weight of the primary composition,

35 to 80% by weight of wood powder, which is a hardwood or coniferous tree, selected from natural wood, pulverized to a particle size of 60 to 150mesh and a water content of 3 to 8%;

Melt index 0.5-30, Flexural modulus 13,000-15,000, Impact strength 3-10kg / cm2, Heat deformation temperature 90-130 ℃, Polypropylene (PP) or high density polyethylene (HDPE) 18 with softening point 130-170 ℃ To 45 weight percent;

1.5 to 15% by weight of MALEIC ANHYDRIDE PP as a binder;

0.1 to 0.5% by weight of antioxidants of the PHOSPHATE family and 0.1 to 2% by weight of calcium stearate;

0.1 to 0.5% by weight of a light stabilizer, Bis 2.2.6.6 tetramethyl-4 piperidil;

0.1 to 0.5% by weight of 2- (2'-hydroxy-3'-tert-butyl-5'-methyl-phenyl) -5-chlorobenzotriazol of the benzotriazole family of ultraviolet absorbers;

The primary composition is composed of 0.1 to 1.5% by weight of lubricant, polyethylene wax or polypropylene wax.

In addition, based on 100 parts by weight of the primary composition,

1 to 15 parts by weight of a mixed melt of one or more selected from powdered jade or germanium, a charcoal, ocher, magnesium oxide, calcium oxide, aluminum oxide and iron oxide, which are far-infrared radiation materials;

1 to 5 parts by weight of an inorganic pigment which is a pigment is added; The synthetic wood composition of the present invention is formulated.

The wood powder is composed of 35 to 80% by weight of wood powder powder, pulverized and processed to a particle size of 60 to 150mesh, moisture content of 3 to 8%, mixed with one or more selected from hardwood or coniferous, bamboo, ,

The synthetic resin, polypropylene (PP) or high-density polyethylene (melting index of 0.5 to 30, flexural modulus of 13,000 to 15,000, impact strength of 3 to 10 kg / cm 2, heat deformation temperature of 90 to 130 ° C, softening point of 130 to 170 ° C) HDPE) 18 to 45% by weight,

The wood powder of the composition and a mixture of polypropylene (PP) or high density polyethylene (HDPE), which are synthetic resins within the above-described physical properties, have a higher water resistance and impact than natural wood or synthetic wood of the prior art when processed into synthetic wood as a processed product. Strength, bending strength and physical properties are strengthened,

The wood flour and polypropylene (PP) or high density polyethylene (HDPE) is a non-toxic material, and it is an environmentally friendly composition because VOC (volatile organic compounds) and HCHO (formaldehyde), which are toxic substances that cause the development of bird concentration, are not generated. Consists of.

The binder, wood flour of the composition and polypropylene (PP) or high-density polyethylene (HDPE) of the composition is easy to combine when mixing and for the purpose of constituting a firm bond structure, MALEIC ANHYDRIDE polypropylene (MALEIC ANHYDRIDE) PP) 1.5 to 15% by weight is used.

The antioxidant, 0.1 to 0.5% by weight of the PHOSPHATE-based antioxidant and 0.1 to 2% by weight of calcium stearate are used for thermal stabilization and weather resistance of the composition processing process of the present invention;

The light stabilizer is used for light stabilization by light of the processed product processed with the composition of the present invention, Bis (2.2.6.6-tetra methyl-4 piperidil) 0.1 to 0.5% by weight is used;

The ultraviolet absorber is for the purpose of absorbing ultraviolet rays by sunlight,

0.1 to 0.5% by weight of Benzotriazole 2- (2'-hydroxy-3'-tert-butyl-5'-methyl-phenyl) -5-chlorobenzotriazol is used;

By the light stabilizer and the ultraviolet absorbent of the above composition, the weather resistance of the processed product processed with the composition of the present invention is composed of a composition further enhanced;

With 0.1 to 1.5% by weight of lubricant polyethylene or polypropylene wax, the primary composition of the present invention is formulated.

In addition, based on 100 parts by weight of the primary composition,

1 to 15 parts by weight of a mixed melt of one or more selected from powdered jade or germanium, a charcoal, ocher, magnesium oxide, calcium oxide, aluminum oxide, and iron oxide, which are far-infrared radiating materials, is added, and the composition of the present invention is added. It is composed of a composition that prevents pharmacological effects and bacterial contamination due to far-infrared radiation of processed products processed by the;

1 to 5 parts by weight of an inorganic pigment that is a pigment for coloring is added; The synthetic wood composition of the present invention is formulated.

In addition, the synthetic wood composition of the configuration, if necessary, may be composed only of the primary composition of the composition without the far-infrared radiation material and pigment;

0.2 to 0.5 parts by weight of the zeolite-based antimicrobial agent, which is an antimicrobial agent, may be added to 100 parts by weight of the primary composition, thereby forming a synthetic wood composition having improved antibacterial function.

Hereinafter, a method for manufacturing a synthetic wood using an environmentally friendly synthetic wood composition of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2;

Synthetic wood 100 using an environmentally friendly synthetic wood composition of the present invention is manufactured by the manufacturing method of the following steps S1 to S6.

S1 step; Primary composition preparation step

35 to 80% by weight of wood powder pulverized to a particle size of 80 to 150mash was added to a blender, and first stirred at 90 to 110 ° C for 10 to 20 minutes to form a water content of 3 to 8%. 18 to 45% by weight of propylene or high density polyethylene resin was added to the blender, followed by secondary agitation at a temperature of 60 to 100 ° C. for 2 to 10 minutes, and 1.5 to 15% by weight of a binder of Marik enhydride polypropylene and PHOSPHATE system. 0.1 to 0.5% by weight of antioxidant, 0.1 to 2% by weight of calcium stearate, 0.1 to 0.5% by weight of light stabilizer Bis (2.2.6.6-tetra methyl-4 piperidil), and Benzotriazole 2- (2) '-hydroxy-3'-tert-butyl-5'-methyl-phenyl) -5-chlorobenzotriazol in an amount of 0.1 to 0.5% by weight, and 0.1 to 1.5% by weight of a lubricant polyethylene wax or a polypropylene wax, and a temperature of 50 to 100 ° C. 5 to 10 minutes at It is stirred to produce a third primary composition.

S2 step; Synthetic Wood Composition

Mixture melt 1 to 15 selected from one or more selected from one or more selected from powdered jade or germanium, charcoal, ocher, magnesium oxide, calcium oxide, aluminum oxide and iron oxide, which are 100 parts by weight of the primary composition. 4 parts by weight and 1-5 parts by weight of an inorganic pigment are added thereto, followed by quaternary stirring at a temperature of 50 to 100 ° C. for 5 to 10 minutes to prepare a synthetic wood composition of the present invention.

S3 step; PELLET MANUFACTURING STEP

As shown in Figure 3, the synthetic wood composition 10 is put into the hopper 210 of the ferret extruder 200, the The synthetic wood composition 10 has a heating temperature of 180 to 240 ° C. of the screw front part 220, a heating temperature of 170 to 200 ° C. of the screw central part 230, and a heating temperature of 140 to 170 ° C. of the screw rear part 240. Transferred to the ferret production die 250, after the ferret 20 is manufactured at the ferret production die heating temperature 140 to 180 ℃, the ferret is dried at room temperature.

S4 step; Substrate Manufacturing Step of Synthetic Wood

As shown in FIG. 4, the dried ferret 20 is introduced into the hopper 310 of the base material extruder 300 of synthetic wood, and the heating temperature of the first screw 320 of the extruder 300 is 180 to 240. ℃, the second screw 330 heating temperature 170 to 200 ℃ and after the vacuum gas is discharged to the outside from the vacuum gas discharge unit 360, the third screw 340 heating temperature 140 to 170 ℃, fourth The ferret 20 is transferred to the substrate manufacturing die 370 at a heating temperature of 150 to 180 ° C. with a screw 350, and extruded into a synthetic wood substrate at a heating temperature of 140 to 180 ° C. of the substrate manufacturing die 370, followed by a cooling bath. After cooling at 380, it is cut with a cutter to produce a base of synthetic wood.

S5 step; Surface layer generation step of synthetic wood substrate

As shown in Fig. 5, in the first and second surface processing machines 410 and 420 of the surface layer manufacturing apparatus 400, the surface of the synthetic wood base material is 0.3 to 0.7 mm (the surface of the base material is cut 0.3 to 0.7 mm). After the treatment), the substrate is transferred to the primary preheating unit 430 preheated to a heating temperature of 150 to 180 ° C. at a feed rate of 1 to 2 m / min, and the surface temperature of the substrate is preheated to 110 to 120 ° C., and the heating temperature. After the embossing on the surface of the substrate at a pressure of 1 to 5 kg / ㎠ with an intaglio or embossed embossing roll 450 preheated to 150 to 250 ℃ to produce a surface layer, the second pre-heat preheated to a heating temperature of 125 to 150 ℃ The polypropylene or high-density polyethylene resin is melted on the outside of the surface layer by a preheating of the surface temperature of the substrate on which the surface layer is generated and the surface layer is formed at a conveying speed of 0.5 to 1 m / min to the portion 440, thereby forming a resin film. The surface layer of the synthetic wood substrate is produced.

S6 step; Attaching protective film to substrate, manufacturing and loading of finished product

The protective film is attached to the outside of the substrate on which the surface layer is formed, and the production of the finished synthetic wood 100 is completed and loaded in the loading box 460.

In addition, the wood flour of the step S1, one or more selected from hardwood or coniferous, bamboo, particle size 60 to 150mesh, crushed to a powder content of 3 to 8%, the powdered wood powder 35 to 80 weight In%,

The synthetic resin, polypropylene (PP) or high-density polyethylene (melting index of 0.5 to 30, flexural modulus of 13,000 to 15,000, impact strength of 3 to 10 kg / cm 2, heat deformation temperature of 90 to 130 ° C, softening point of 130 to 170 ° C) HDPE) 18 to 45% by weight,

The wood powder of the composition and a mixture of polypropylene (PP) or high density polyethylene (HDPE), which are synthetic resins within the above-described physical properties, have a higher water resistance and impact than natural wood or synthetic wood of the prior art when processed into synthetic wood as a processed product. Manufacturing method to strengthen the strength and bending strength properties,

The primary composition is sufficiently stirred by the first to third agitation sequentially in the above temperature range (first agitation at 90 to 110 ° C., second agitation at 60 to 100 ° C., third agitation at 50 to 100 ° C.) It is composed of a manufacturing method that prevents defective rate;

In the step S2, at least one selected from powder jade or germanium, charcoal, ocher, magnesium oxide, calcium oxide, aluminum oxide, iron oxide, 100 parts by weight of the primary composition prepared in step S1 1 to 15 parts by weight of this mixed melt mixed melt and 1 to 5 parts by weight of an inorganic pigment are added and stirred for 5 to 10 minutes at a temperature of 50 to 100 ° C. to produce a synthetic wood composition.

It consists of a synthetic wood composition of the present invention and a manufacturing method to prevent pharmacological effects and bacterial contamination due to far-infrared radiation of processed products processed with the composition;

In the step S3, the synthetic wood composition 10 is put into the ferret production extruder 200, when the synthetic wood composition 10 is transferred from the screw front portion 220 of the extruder to the central portion 230, the rear portion 240 The screw front portion 220, the central portion 230, the temperature of the heating temperature is sequentially lowered from high temperature to low temperature (screw front portion 180 to 240 ℃, screw center portion 170 to 200 ℃, screw rear portion 140 to 170 ℃), Consists of the temperature range of the rear portion 240, the ferret manufacturing mold 250 is made of a manufacturing method that is easy to manufacture ferrets;

In the step S4, the ferret 20 is put into the base material extruder 300 of synthetic wood, the ferret is transferred to the first screw 320, the second screw 330, the third screw 340 of the extruder The first screw 320 and the second screw of which the heating temperature is sequentially lowered from a high temperature to a low temperature (first screw 180 to 240 ℃, second screw 170 to 200 ℃, third screw 140 to 170 ℃) 330, the temperature range of the third screw 340, and finally heated to 150 to 180 ° C. in the fourth screw 350, and then transferred to the substrate manufacturing mold 370, thereby forming the synthetic wood substrate in the mold 370. It is composed of a manufacturing method that is easy to extrusion work during extrusion.

In the step S5, the surface treatment of the surface layer manufacturing apparatus 400, the first and second surface processing machine (410, 420) by performing a processing to scrape the surface of the substrate 0.3 to 0.7mm, thereby maintaining the flatness of the substrate It is composed of a manufacturing method that facilitates the generation of the surface layer on the outside,

The substrate is heated to 110 to 120 ℃ in the primary preheating unit 430 preheated to 150 to 180 ℃, embossed by the embossed or embossed roll 450 preheated to 150 to 250 ℃, the substrate The surface layer is easily generated on the outside of the

When the substrate on which the surface layer is formed is heated to 125 to 140 ° C. in the secondary preheating unit 440 preheated to 125 to 150 ° C., a polypropylene or a high density polyethylene resin is melted outside the surface layer to form a resin film. By the method, a resin film is easily formed on the intaglio embossing portion and the resin surface layer which generated the surface layer by the intaglio embossing roll 450, thereby enhancing the water resistance and weather resistance of the finished synthetic wood, and the surface layer is scratched by scratching. It is comprised by the manufacturing method which is prevented and the surface layer is protected.

Hereinafter, the present invention will be described in more detail with reference to Examples.

An embodiment is a fence (FANCE) processed the synthetic wood composition of the present invention prepared by the manufacturing method of step S1 to S6 mentioned in FIG. 2 to FIG. 5;

Comparative Example 1 is a fence made of natural wood that is commercially available and manufactured from natural wood;

Comparative Example 2 is a fence made of synthetic wood material commercially distributed with synthetic wood compositions composed of wood flour and vinyl chloride resin, which is a synthetic resin, and the main physical property analysis results of Examples 1 and 2 are shown in Table 1 below. And in Table 2.

EXAMPLE

56% by weight of crushed wood powder with a particle size of 80 mash, 30% by weight of polypropylene resin, 10% by weight of mareik enhydride polypropylene as a binder, 0.5% by weight of antioxidant of PHOSPHATE system as an antioxidant, 1.5% by weight of calcium stearate %, Light stabilizer Bis

(2.2.6.6-tetra methyl-4 piperidil) 0.5 wt%, 2- (2 '-hydroxy -3'-tert-butyl-5 '-methyl-phenyl) -5

-0.5 wt% of chlorobenzotriazol, 1.0 wt% of the lubricant polyethylene wax 1 to 3 times at the temperature and stirring time of the step S1 in a blender to prepare a primary composition,

To 100 parts by weight of the primary composition, 10 parts by weight of powdery jade, which is a far-infrared radiation material, and 3 parts by weight of inorganic pigment were added and stirred for 10 minutes at a temperature of 50 to 100 ° C. to prepare a synthetic wood composition;

After putting the synthetic wood composition into the hopper of the ferret production extruder, the screw front end temperature 180 ℃, the central temperature 200 ℃, the rear temperature at 170 ℃ transfer, the mold temperature at 180 ℃ after drying the ferret at room temperature,

The ferret is introduced into the hopper of the synthetic wood manufacturing extruder, the first screw temperature is 190 ° C., the second screw temperature is 170 ° C., and the vacuum gas is discharged to the vacuum gas outlet, and the third screw temperature is 140 ° C. and the fourth screw temperature. Transferred to 180 ° C., extruded in a 180 ° C. mold, the substrate was cooled in a production cooling bath, and cut with a cutter to prepare a synthetic wood substrate;

After cutting the surface of the synthetic wood substrate by 0.5 mm with the first and second surface processors, the substrate was heated to 120 ° C. with a primary preheating unit having a temperature of 150 ° C., and then embossed at a pressure of 3 kg / cm 2 with a negative embossing roll having a temperature of 230 ° C. After the surface layer was formed, the substrate was heated to 130 ° C. with a secondary preheating unit having a temperature of 140 ° C., and thus a synthetic wood of the present invention having a polypropylene resin film 0.3 mm thick on the outside of the substrate was manufactured. Processed with a fence

Comparative Example 1

Natural wooden fences made of natural wood were purchased on the market.

Comparative Example 2

A fence made of synthetic wood, which was processed with a synthetic wood composition composed of 40% by weight of wood flour and 60% by weight of a vinyl chloride resin as an additive and an additive, was commercially available.

Test Items Test Methods Reference value Example Comparative Example 1 Comparative Example 2 Impact strength (mm) GR F-2016 15 or less in diameter 7 16 9 Flexural strength (kg / ㎠) ASTM D-4761 More than 180 240 200 198 Water absorption rate (%) GR F- 2016 3.0 or less 1.3 21 1.3 Far Infrared Effect Relative Evaluation by Material Occurrence U radish radish Wood surface texture Surface layer relative evaluation - Great Great Lowering Cost Reduction Relative Evaluation by Material - 1x Twice 1.5 times productivity Relative Evaluation by Manufacturing Method - Great Lowering Good

-GR standard: Korean wood recycling standard

Weathering test

According to the Hyunwoo test method standard "HW-05-03-117 weather resistance test method" to measure the deterioration of the product, after stabilizing the specimen in ATLAS UVCON TEST for 100 to 500 hours, remove the specimen from the tester Using a color difference meter of the DATACOLOR SPECTRAFLASH SF600, a measuring device, dichroic phenomena were measured. The results of weather resistance properties are shown in Table 2.

division Example 1 Comparative Example 1 Comparative Example 2 100 HRS ΔE = 0.74 ΔE = 1.35 ΔE = 1.40 200 HRS ΔE = 1.43 ΔE = 1.87 ΔE = 1.98 300 HRS ΔE = 1.89 ΔE = 2.40 ΔE = 2.65 500 HRS ΔE = 1.90 ΔE = 2.45 ΔE = 3.79

As can be seen in Table 1 and Table 2, Comparative Example 1 is a fence processed with a synthetic wood composition of the present invention composition is a fence processed with natural wood of the prior art, and vinyl chloride resin mixture composition of the prior art The impact strength, flexural strength, weather resistance, and water absorption rate (water resistance) were the best compared to the fence processed with the synthetic wood.

In particular, the embodiment of a fence processed from a synthetic wood composition of the present invention is environmentally friendly at the time of burning, since VOC (volatile organic compounds) and HCHO (formaldehyde), which are toxic substances that cause the generation of bird concentration, are not generated. No chlorine gas is generated, the far-infrared radiation effect and the surface texture are excellent, and it can be used as a renewable raw material, it has been found that the productivity is improved by the cost reduction and the manufacturing method of the present invention;

Comparative Example 1, the water absorption rate (water resistance) is weak, impact strength, bending strength, weather resistance properties are deteriorated, harmful to the human body by the discharge of arsenic, copper, chromium harmful substances due to the use of preservatives, the embodiment 1 times As a standard, it has been found to have a problem in use by doubling the cost of natural wood materials;

In Comparative Example 2, the water absorption rate (water resistance), impact strength, and bending strength properties are satisfied, but the weather resistance is remarkably deteriorated, and it is harmful to the human body due to the discharge of chlorine gas during combustion due to the use of a vinyl chloride resin mixture. As gas increased, decomposition started at over 100 ℃. As the temperature increased, pyrolysis products such as ethyl chloride, phosgene, vinyl chloride monomer, and carbon pyrolyzed from toxic oxides, which caused sick house syndrome. Its content was less than 40%, and the surface texture artificially degraded in appearance, which proved to be a problem in use.

1 is a perspective drawing of the drawing substitute of a fence that is a building processed with the present invention synthetic wood composition,

Figure 2 is a flow-sHEET showing the synthetic wood composition of the present invention and a method for producing synthetic wood step by step,

Figure 3 is a schematic diagram showing a manufacturing method and apparatus for producing a synthetic wood composition of the present invention in a ferret,

Figure 4 is a schematic diagram showing a manufacturing method and apparatus for manufacturing the base material of the present invention synthetic wood,

5 is a schematic view showing a manufacturing method and apparatus for producing a surface layer on a substrate.

<Description of the symbols for the main parts of the drawings>

100: synthetic wood

10: synthetic wood composition

20: Ferret

200: Ferret Manufacturing Extruder

210: Hopper

220,230,240: Screw front part, center part, rear part

250: Ferret Manufacturing Mold

300: substrate manufacturing extruder

310: Hopper

320, 330, 340, 350: 1, 2, 3, 4 screws

360: vacuum gas discharge unit 370: base material manufacturing mold

380: cooling tank

400: surface layer manufacturing apparatus

410, 420: first and second surface processing machine 430: primary preheating unit

440: second preheating unit 450: embossing roll

460: loading box

Claims (4)

Synthetic wood composition, used as exterior materials or interior materials of buildings; Based on 100% by weight of the primary composition, Natural wood, either hardwood, softwood or bamboo, 35 to 80% by weight of wood powder, on powder ground to a particle size of 60 to 150mesh, moisture content of 3 to 8%; Melt index 0.5-30, Flexural modulus 13,000-15,000, Impact strength 3-10kg / cm2, Heat deformation temperature 90-130 ℃, Polypropylene (PP) or high density polyethylene (HDPE) 18 with softening point 130-170 ℃ To 45 weight percent; 1.5 to 15% by weight of MALEIC ANHYDRIDE PP as a binder; 0.1 to 0.5% by weight of antioxidants of the PHOSPHATE family and 0.1 to 2% by weight of calcium stearate; 0.1 to 0.5% by weight of a light stabilizer, Bis 2.2.6.6 tetramethyl-4 piperidil; 0.1 to 0.5% by weight of 2- (2'-hydroxy-3'-tert-butyl-5'-methyl-phenyl) -5-chlorobenzotriazol of the benzotriazole family of ultraviolet absorbers; The primary composition is composed of 0.1 to 1.5% by weight of a lubricant polyethylene wax or polypropylene wax; For 100 parts by weight of the primary composition, 1 to 15 parts by weight of a mixed melt of one or more selected from powdered jade or germanium, a charcoal, ocher, magnesium oxide, calcium oxide, aluminum oxide and iron oxide, which are far-infrared radiation materials; 1 to 5 parts by weight of the inorganic pigment which is a pigment; Eco-friendly synthetic wood composition, characterized in that the composition is added. Synthetic wood composition, used as exterior materials or interior materials of buildings, Based on 100% by weight of the total composition, 35 to 80% by weight of wood powder, which is a hardwood or coniferous tree, selected from natural wood, pulverized to a particle size of 60 to 150mesh and a water content of 3 to 8%; Melt index 0.5-30, Flexural modulus 13,000-15,000, Impact strength 3-10kg / cm2, Heat deformation temperature 90-130 ℃, Polypropylene (PP) or high density polyethylene (HDPE) 18 with softening point 130-170 ℃ To 45 weight percent; 1.5 to 15% by weight of MALEIC ANHYDRIDE PP as a binder; 0.1 to 0.5% by weight of antioxidants of the PHOSPHATE family and 0.1 to 2% by weight of calcium stearate; 0.1 to 0.5% by weight of a light stabilizer, Bis 2.2.6.6 tetramethyl-4 piperidil; 0.1 to 0.5% by weight of 2- (2'-hydroxy-3'-tert-butyl-5'-methyl-phenyl) -5-chlorobenzotriazol of the benzotriazole family of ultraviolet absorbers; Eco-friendly synthetic wood composition, characterized in that the composition is composed of 0.1 to 1.5% by weight of the lubricant polyethylene wax or polypropylene wax. The eco-friendly synthetic wood composition according to claim 1 or 2, wherein 0.2 to 0.5 parts by weight of the zeolite-based antimicrobial agent is added to 100 parts by weight of the primary composition. Method of manufacturing synthetic wood, characterized in that manufactured by the manufacturing method of the following steps S1 to S6 used as exterior materials or interior materials of buildings S1 step; Primary composition preparation step 35 to 80% by weight of wood powder pulverized to a particle size of 80 to 150mash was added to a blender, and first stirred at 90 to 110 ° C for 10 to 20 minutes to form a water content of 3 to 8%. 18 to 45% by weight of propylene or high density polyethylene resin was added to the blender, followed by secondary agitation at a temperature of 60 to 100 ° C. for 2 to 10 minutes, and 1.5 to 15% by weight of a binder of Marik enhydride polypropylene and PHOSPHATE system. 0.1 to 0.5% by weight of antioxidant, 0.1 to 2% by weight of calcium stearate, 0.1 to 0.5% by weight of light stabilizer Bis (2.2.6.6-tetra methyl-4 piperidil), and Benzotriazole 2- (2) '-hydroxy-3'-tert-butyl-5'-methyl-phenyl) -5-chlorobenzotriazol in an amount of 0.1 to 0.5% by weight, and 0.1 to 1.5% by weight of a lubricant polyethylene wax or a polypropylene wax, and a temperature of 50 to 100 ° C. 5 to 10 minutes at It is stirred to produce a third primary composition. S2 step; Synthetic Wood Composition Mixture melt 1 to 15 selected from one or more selected from one or more selected from powdered jade or germanium, charcoal, ocher, magnesium oxide, calcium oxide, aluminum oxide and iron oxide, which are 100 parts by weight of the primary composition. 4 parts by weight and 1-5 parts by weight of an inorganic pigment are added thereto, followed by quaternary stirring at a temperature of 50 to 100 ° C. for 5 to 10 minutes to prepare a synthetic wood composition of the present invention. S3 step; PELLET MANUFACTURING STEP The synthetic wood composition 10 is put into the hopper 210 of the ferret extruder 200, the The heating temperature of the screw front portion 220 to 180 to 240 ℃, the heating temperature of 170 to 200 ℃ of the screw central portion 230, the heating temperature of 140 to 170 ℃ of the screw rear portion 240, the synthetic wood composition 10 is ferret The ferret is dried at room temperature after being transferred to the manufacturing mold 250 and the ferret 20 is manufactured at the ferret manufacturing mold heating temperature 140 to 180 ° C. S4 step; Substrate Manufacturing Step of Synthetic Wood The dried ferret 20 is introduced into the hopper 310 of the base material extruder 300 of synthetic wood, the first screw 320 heating temperature of the extruder 300 180 to 240 ℃, the second screw 330 After the transfer to the heating temperature of 170 to 200 ℃, the vacuum gas discharged from the vacuum gas discharge unit 360 to the outside, the third screw 340 heating temperature 140 to 170 ℃, the fourth screw 350 heating temperature 150 to The ferret 20 is transferred to the substrate manufacturing mold 370 at 180 ° C, extruded into a synthetic wood substrate at a heating temperature of 140 to 180 ° C of the substrate manufacturing mold 370, and then cooled in a cooling tank 380, and then a cutter. Cut to produce a substrate of synthetic wood. S5 step; Surface layer generation step of synthetic wood substrate In the first and second surface processing machines 410 and 420 of the surface layer manufacturing apparatus 400, the surface of the synthetic wood substrate is 0.3 to 0.7 mm processing (work to shave the surface of the substrate 0.3 to 0.7 mm), the heating temperature It is transferred to the primary preheater 430 preheated to 150 to 180 ° C at a feed rate of 1 to 2 m / min, the surface temperature of the substrate is preheated to 110 to 120 ° C and intaglio preheated to a heating temperature of 150 to 250 ° C Or embossed on the surface of the substrate at a pressure of 1 to 5 kg / ㎠ with an embossing roll 450 to produce a surface layer, and then transfer to the secondary preheating unit 440 preheated to a heating temperature of 125 to 150 ℃ 0.5 The surface layer of the synthetic wood substrate is formed by melting polypropylene or a high density polyethylene resin on the outside of the surface layer by preheating the surface temperature of the substrate on which the surface layer is formed to be transported at 1 to 1 m / min. . S6 step; Attaching protective film to substrate, manufacturing and loading of finished product The protective film is attached to the outside of the substrate on which the surface layer is formed, and the production of the finished synthetic wood 100 is completed and loaded in the loading box 460.

Images