KR101432206B1 - Lung clothing-assisted artificial wood and its manufacturing method - Google Patents

Abstract

The present invention relates to a synthetic wood using waste clothing and a method to manufacture the same, which recycles waste clothing to prevent environmental pollution. The method in the present invention comprises the steps of: taking out pure waste clothing; inducing heating by a friction force between the waste clothing taken out; forcibly evaporating moisture by a friction force and a rotating force; grinding the waste clothing by a rotating blade; a waste clothing polymer grinding step of preparing a chip or pellet-state material; mixing wood flour (saw dust), waste clothing, and any one of a thermoplastic polypropylene (PP) and a polyethylene (PE) and an additive subsidiary material; and manufacturing a synthetic wood by extruding a mixed composition.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial wood,

The present invention relates to an artificial wood using waste garments and a method of manufacturing the same. More particularly, the present invention relates to an artificial wood comprising wood flour of artificial wood as a main component and recycled waste clothes having excellent physical and chemical properties, And to a method of manufacturing the artificial wood.

Generally, construction materials for walking are installed in the hiking trails, walking trails, walkways or yards of single-family houses. Stone, wood, concrete, bricks and the like are used for such building materials.

However, such building materials are difficult to mass-produce, and in the case of stone or wood, it is difficult to secure materials for mass production, and since the outer shape is not uniform, separate dimensioning is required for standardization.

The most commonly used wood for decking wood is wood, which is a kind of pine tree, Hamlock or Hamper, which is mainly used for wood.

As for the preservative wood, the general wood is produced as a preservative as it goes through the preservative liquid treatment process, and the preservative wood which has been subjected to the non-acid treatment process such as chromization is mainly composed of CCA (Cromated Copper Arsenate).

The antiseptic used in the anticorrosive is a non-perishable drug that prevents the microorganisms from habitat and is intended to kill if the insects living on the wood digest it. It contains a toxic substance. And plants and the like.

Since the substances contained in the above-mentioned anticorrosive materials contain chromium, arsenic and copper, toxic substances harmful to nature and human body are released, so that the legal regulations on these substances are being strengthened.

WPC (Wood Plastic Composite), which uses conventional wood powder, has been used as artificial wood in order to replace this anticorrosive wood. However, this has also been exposed to the disadvantages such as surface hardness, (LDPE), polypropylene (PP), polystyrene (PS), or polyvinyl chloride (PVC) resin in order to make environmentally friendly products.

However, since the general-purpose resins have a weak surface hardness after molding and an abnormal shrinkage rate as temperature changes and a viscosity ratio of wood flour is insufficient, the mixing ratio for increasing the bonding strength with resin is 1: 1 or more It was possible to mold.

In fact, almost all artificial wood (WPC) uses wood powder rather than wood fiber and wood powder is made by grinding recycled materials such as chips, shaving, and sawdust into fine powder form, so that it is often difficult to process wood fibers. It is often used as a reinforcing agent rather than as an additive.

On the other hand, in the United States, it has designated more than 25 manufacturing facilities and 30 RDF-coal mixed power plants based on RDF production technology spreading in Europe, stipulating waste as an important renewable energy. It has started replacing the incinerator with the RDF production facility and currently operates 57 RDF production facilities and 5 RDF power plants.

In keeping with this trend of advanced countries in the environment, Korea has installed RDF manufacturing facilities since 2006, and currently produces about 40 tons of RDF using about 80 tons of waste per day. RDF is produced by cement factory and paper factory It is supplied as an auxiliary fuel. In addition, the government is striving to improve the production and use of RDF, and to do its best to provide financial support for the expansion of the waste energy system in the municipality. To this end, the criteria for waste energy recovery and RDF quality Renewal of standards, permission to use RDF in clean fuel use areas, and strengthening landfill standards to induce waste energy.

By 2012, the total investment of KRW 1.9 trillion in total will be spent on landfill, solid fuel, and private sector investment. Based on this, 20 RDF facilities capable of generating 1.75 million tons of municipal solid waste per year, The company plans to expand 10 power generating facilities that can use the RDF produced here. In addition, the Ministry of Environment expects to achieve economic benefits of W804.9bn per annum (reducing waste disposal costs, replacing crude oil and securing carbon emission rights) by 2012 when the business of solidification of combustible waste solid fuel is proceeding successfully. In addition, the new installation of landfill and incineration facilities is restrained, thereby reducing the secondary environmental impacts caused by leachate and odor, and reducing the amount of waste landfill to one-fifth of the present level. Is expected to do.

However, in spite of the government's support to date, many waste resources that can be processed as solidified fuel have been incinerated, and the production of solidified fuel to waste clothing (fiber) is extremely insufficient. The incineration amount of waste synthetic fiber is about 649,418 tons per year, with the amount of fiber per capita being 25Kg per capita compared to about 50 million people in Korea in 2010, and the amount of waste incinerated per capita is 13Kg. In addition, incineration is inconvenient because incineration of waste synthetic fiber is not performed well and incineration is not easy. In the case of the Ministry of National Defense, waste incineration costs amount to 180,000 ~ 230,000 won per ton. Therefore, it is very urgent to develop a solidified fuel using such a garment.

As described above, the conventional waste clothes are very limited in their recycling, and even when they are recycled, they are reproduced as solidified fuel for incineration again, or waste garments are incinerated in the incineration plant as they are, causing environmental pollution or being recycled at a very low cost The productivity and the recycling effect are insignificant.

Invention Patent No. 10-0917375 (registered on 09. 08. 2009) Patent No. 0439391 (registered on April 04, 2008) Utility Model No. 20-1998-011405 (disclosed on May 25, 1998) Patent Registration No. 10-0933358 (Registered on December 14, 2009)

Accordingly, a solution to the problems of the prior art is to provide a method for manufacturing artificial wood by mixing synthetic resin in wood powder and pulverizing and mixing pulverized clothes mixed with various physical properties to produce artificial wood And to provide a recyclable product through improvement of various functions.

The present invention relates to a method for removing garbage from a waste garment,
Rotating the waste clothes taken out at 1000 to 1400 RPM to induce the heat generated by the frictional force between the garments to be 150 to 180 DEG C;
A forced moisture evaporation step of the garment to be impregnated into the fibrous tissue by the frictional force and the rotational force between the garments and forcibly evaporating the moisture;
And the pulverized garment is pulverized to a size of 10 to 25 mm through a rotating bladder with a physical impact when the heat generation temperature reaches the melting start point of the pulp garment;
Pulverized clothes are extruded through a transfer screw at a temperature of 120 to 250 캜 and polymerized to a size of 5 to 10 탆 by fusion to prepare a material in the form of chips or pellets;
30 to 70% by weight of common wood powder (sawdust), 20 to 60% by weight of waste clothes obtained in the step of pulverizing the waste garment polymer, 5 to 20% by weight of any one of thermoplastic polypropylene (PP) and polyethylene %, And 5 to 20% by weight of an additive for additives are mixed and mixed using a cooling mixer; And
A step of extruding the mixed composition into spherical or cylindrical pellets, and a step of producing artificial wood by extrusion molding using a mold.

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(A) 30 to 70% by weight of common wood flour (sawdust)
(b) The waste garment from which the foreign matter is removed is rotated at 1000 to 1400 RPM to induce a heat of 150 to 180 DEG C due to the frictional force between the garments, When the temperature of the heating reaches the melting point of the garment, the powder is pulverized to a size of 10 to 25 mm by adding a physical impact, and then extruded at a temperature of 120 to 250 캜, 20 to 60% by weight of pulp garment obtained by pulverizing polymer into a size of 20 to 60% by weight,
(c) 5 to 20% by weight of any one of thermoplastic polypropylene (PP) and polyethylene (PE)
(d) 5 to 20% by weight of an auxiliary material for additives,
(e) 30 to 70% by weight of the conventional wood powder (sawdust), 20 to 60% by weight of pulp garment obtained by pulverizing the polymer, 5 to 50% by weight of any one of the thermoplastic polypropylene (PP) 20% by weight, and 5% to 20% by weight of the auxiliary material for additives are mixed and mixed using a cooling mixer,
(f) extruding the mixed composition into spherical or cylindrical pellets, and extruding the mixture by a mold.

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The present invention relates to a method for manufacturing artificial wood by mixing synthetic resin in wood powder and collecting waste clothes mixed with various physical properties and fusing them by pulverization and then mixing them with polymer raw material for artificial wood by pulverizing polymer to produce artificial wood, It is possible to recycle using clothing, prevent environmental pollution, and improve various functionalities.

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

(a) 30 to 70% by weight of common wood flour (sawdust)

(b) 20 to 60% by weight of pulverized garments collected by pulverization, polymerized by fusion,

(c) 5 to 20% by weight of any one of thermoplastic polypropylene (PP) and polyethylene (PE)

(d) 5 to 20% by weight of auxiliary materials for additives.

The above materials are mixed, extruded to form pellets, cooled, and then artificial wood is produced by extrusion, injection molding, compression molding and the like.

The artificial wood of the present invention comprises 30 to 70% by weight of wood powder, 20 to 60% by weight of pulp garment, 5 to 20% by weight of any one of thermoplastic polypropylene (PP) and polyethylene (PE) %.

The wood flour (sawdust) can be used as wood flour, wood flour, roots and the like as grits, and it is possible to utilize sawdust discharged from a wood shop or the like.

Wood flour is used to make artificial wood to show the tactile qualities or characteristics of wood, and if the wood is less than 30% by weight, the finished wood does not show the characteristics of the wood and has the same feel as plastic lumps. If it is 70% by weight or more, the ratio is high and the bond strength with other raw materials is lowered, and the durability is weak, and preferably 40 to 60% by weight is suitable.

The waste garment includes a step of removing pure garment from which foreign matter has been removed;

Rotating the waste garment to induce heat generation due to frictional force between the garments;

Allowing the moisture to be forcedly evaporated into the fibrous tissue by the frictional force and the rotational force between the closed garments;

Grinding the garment to a size of 10 to 25 mm by adding a physical impact when the heating temperature of the garment reaches a melting start point of the garment;

Extruding the pulverized garment at a temperature of 120 to 250 캜 and pulverizing the polymer into a size of 5 to 10 탆 by fusion.

Polypropylene (PP) is a thermoplastic synthetic resin which can be used as a substitute for polyethylene (LDPE, HDPE). It can also be used as a mixture of polypropylene and polyethylene. When it is less than 5% by weight, And when it is higher than 20% by weight, the characteristics of the wood are not shown well, and preferably 10% by weight is suitable.

It is economical and environment-friendly that the recycled resin produced from pellets after collecting, cleaning and melting waste scrap of the waste product of the polypropylene and polyethylene is used or a predetermined amount is mixed with the new resin.

The artificial wood is mixed with 30 to 70% by weight of wood powder, 20 to 60% by weight of waste garment, 5 to 20% by weight of any one of thermoplastic polypropylene (PP) and polyethylene (PE), and 5 to 20% To prepare a pellet.

It is preferable that the additive material is mixed with 10% by weight based on the total weight of the composite material, and it is possible to maximize the inherent properties of the pulverized garment and the thermoplastic polypropylene by adding a small amount of auxiliary material to the conventional synthetic wood (WPC) To provide the most suitable rate for the user.

Polymethyl methacrylate (PMMA) is used as the shrinkage preventing agent, which is one of additives for additives, preferably 2 to 5 wt%.

It is preferable to use a glass fiber reinforcing agent as the reinforcing agent, which is one of the additives for additives, and is used in the form of a long fiber, and it is preferably used in an amount of 1 to 5% by weight although it has no significant effect on the weight. When the composition is less than 1% by weight, the reinforcing effect is lowered, and when it is more than 5% by weight, the synergistic effect of reinforcement is insignificant.

The synthetic pellets are supplied to produce artificial wood through extrusion, injection molding, compression molding or the like.

Next, the process for producing artificial wood using the artificial wood composition will be described in detail.

end. Take-out stage of waste clothing

The foreign matter of the collected garment is removed, and the purely lung garment is taken out.

I. Step of inducing heating of garment

The waste garment taken out is rotated at 1000 to 1400 RPM, preferably at 1200 RPM, so that heat generated by the frictional force between the garments is induced by rotation.

The heat generated by the frictional force is about 150 to 180 캜.

All. Waste clothing moisture evaporation phase

As described above, when heat is generated at a temperature of 150 to 180 DEG C due to the frictional force generated by the rotation, the fibers are infiltrated into the fibrous tissue by frictional force and rotational force between the pulmonary clothes, thereby forcibly evaporating moisture.

la. Waste garment crushing step

When the heating temperature of the garment reaches the melting start point of the garment, the garment is pulverized to a size of 10 to 25 mm through the rotating blades with a physical impact.

hemp. Waste Clothing Polymer Crushing Step

The pulverized clothes are extruded through a transfer screw at a temperature of 120 to 250 캜, and polymerized to a size of 5 to 10 탆 by fusion to prepare a material in the form of chips or pellets.

bar. Mixing of the composition

30 to 70% by weight of common wood powder (sawdust), 20 to 60% by weight of waste clothing, 5 to 20% by weight of any one of thermoplastic polypropylene (PP) and polyethylene (PE) % By weight of the composition are mixed and mixed using a cooling mixer.

Such a mixed composition enhances the productivity of the product by increasing the cohesion and cohesion, which are factors necessary for obtaining the improvement of the processing speed in the extrusion molding and the precision and dimensional stability of the molding.

four. Manufacture of artificial wood

Extruding the mixed composition into spherical or cylindrical pellets, and then producing artificial wood by any one of extrusion molding, injection molding and extrusion molding with a die.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims. It will be understood that the invention may be varied and changed without departing from the scope of the invention.

The present invention provides a composition made of wood pulp, waste plastic, thermoplastic polyethylene and additives, and is manufactured by injection molding, extrusion molding, and the like, and can be used for various purposes such as interior / exterior materials for construction, replacement of anticorrosion, outdoor deck, pagoda, bench, And decorative structures, and the like.

Claims (2)

Removing the foreign matter of the collected garment to take out the pure garment;
Rotating the waste clothes taken out at 1000 to 1400 RPM to induce the heat generated by the frictional force between the garments to be 150 to 180 DEG C;
A forced moisture evaporation step of the garment to be impregnated into the fibrous tissue by the frictional force and the rotational force between the garments and forcibly evaporating the moisture;
And the pulverized garment is pulverized to a size of 10 to 25 mm through a rotating bladder with a physical impact when the heat generation temperature reaches the melting start point of the pulp garment;
Pulverized clothes are extruded through a transfer screw at a temperature of 120 to 250 캜 and polymerized to a size of 5 to 10 탆 by fusion to prepare a material in the form of chips or pellets;
30 to 70% by weight of common wood powder (sawdust), 20 to 60% by weight of waste clothes obtained in the step of pulverizing the waste garment polymer, 5 to 20% by weight of any one of thermoplastic polypropylene (PP) and polyethylene %, And 5 to 20% by weight of an additive for additives are mixed and mixed using a cooling mixer; And
A step of extruding the mixed composition into a spherical or cylindrical pellet, and a step of producing an artificial wood by extrusion molding using a mold.
(a) 30 to 70% by weight of common wood flour (sawdust)
(b) The waste garment from which the foreign matter is removed is rotated at 1000 to 1400 RPM to induce a heat of 150 to 180 DEG C due to the frictional force between the garments, When the temperature of the heating reaches the melting point of the garment, the powder is pulverized to a size of 10 to 25 mm by adding a physical impact, and then extruded at a temperature of 120 to 250 캜, 20 to 60% by weight of pulp garment obtained by pulverizing polymer into a size of 20 to 60% by weight,
(c) 5 to 20% by weight of any one of thermoplastic polypropylene (PP) and polyethylene (PE)
(d) 5 to 20% by weight of an auxiliary material for additives,
(e) 30 to 70% by weight of the conventional wood powder (sawdust), 20 to 60% by weight of pulp garment obtained by pulverizing the polymer, 5 to 50% by weight of any one of the thermoplastic polypropylene (PP) 20% by weight, and 5% to 20% by weight of the auxiliary material for additives are mixed and mixed using a cooling mixer,
(f) Artificial wood using waste garment, wherein the mixed composition is extrusion-molded into a spherical or cylindrical pellet and molded by a die.