WO2013118930A1 - Method for manufacturing biodegradable board and biodegradable board manufactured thereby - Google Patents
Method for manufacturing biodegradable board and biodegradable board manufactured thereby Download PDFInfo
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- WO2013118930A1 WO2013118930A1 PCT/KR2012/001154 KR2012001154W WO2013118930A1 WO 2013118930 A1 WO2013118930 A1 WO 2013118930A1 KR 2012001154 W KR2012001154 W KR 2012001154W WO 2013118930 A1 WO2013118930 A1 WO 2013118930A1
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- biodegradable
- biodegradable resin
- board
- wood pulp
- resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/16—Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
Definitions
- the present invention relates to a method for manufacturing a biodegradable board (Board) and to a biodegradable board manufactured therefrom, more specifically, the biodegradability and the secondary molding upon heating at the same time can be a variety of industrial products that require a three-dimensional structure
- the present invention relates to a method for manufacturing a biodegradable board that can be used as a material, and a biodegradable board made therefrom.
- thermosetting resin such as melamine resin and urea resins
- thermosetting resin served as an adhesive for bonding wood pulp to each other.
- the board manufactured by the conventional method as described above is not biodegradable and not environmentally friendly because it uses a thermosetting resin as an adhesive, and can not be transformed into various three-dimensional structures by heating the manufactured board, that is, secondary molding is There is a problem that can not be used as parts of the industrial field that requires a variety of three-dimensional structure because it is impossible to use only as a flooring material.
- An object of the present invention is to provide a method for producing a board that is excellent in biodegradability and capable of secondary molding into various three-dimensional structures, and a biodegradable board made therefrom.
- 100 parts by weight of wood pulp and 1 to 100 parts by weight of biodegradable resin having thermoplasticity with a melting temperature of 100 to 170 ° C. are mixed and dispersed to prepare a mixture of wood pulp and the biodegradable resin. Then, the prepared mixture of wood pulp and biodegradable resin is introduced into a mold and then pressurized at a temperature above the melting temperature of the biodegradable resin to form a board.
- the biodegradable resin used is in the form of a powder or fibrous form.
- the board manufactured according to the present invention is composed of only biodegradable resin and wood pulp to express biodegradability, which is environmentally friendly, and includes three-dimensional forms having various bends in a heated state, including biodegradable resins having thermoplastics instead of conventional thermosetting resins. Secondary molding is possible, so it is useful not only for building flooring but also for automotive parts such as door trim and headline.
- Method for producing a biodegradable board according to the present invention is (i) wood pulp and the biodegradable resin by mixing and dispersing 100 parts by weight of wood pulp and 1 to 100 parts by weight of a biodegradable resin having a thermoplastic melt temperature of 100 ⁇ 170 °C Preparing a mixture of; And (ii) injecting the prepared mixture of wood pulp and biodegradable resin into a mold and then applying a pressure at a temperature equal to or higher than the melting temperature of the biodegradable resin to form a board.
- 100 parts by weight of wood pulp and 1 to 100 parts by weight of a biodegradable resin having a thermoplastic melt temperature of 100 to 170 ° C. are mixed and dispersed to prepare a mixture of wood pulp and the biodegradable resin.
- a dispersion facility is used for mixing and dispersing the wood pulp and the biodegradable resin.
- Melting temperature of the biodegradable resin is 100 ⁇ 170 °C, more preferably 100 ⁇ 150 °C it is good to reduce the energy consumption in the molding process and the secondary processing process.
- the biodegradable polymer is polylactic acid, polybutylene succinate, polyethylene succinate, polyhydroxybutylate, polycaprolactone, or the like.
- the biodegradable resin When the biodegradable resin is less than 1 part by weight with respect to 100 parts by weight of wood pulp, the role of the adhesive is weak, making board molding difficult, and when it exceeds 100 parts by weight, the rigidity of the manufactured board is lowered, and the appearance of the product after the secondary molding is lowered. do.
- the biodegradable resin is in powder or fibrous form, and more preferably in fibrous form.
- the manufacturing cost is reduced, but the amount of use of the board is increased because the biodegradable resin cannot serve as an adhesive and a binder at the same time.
- the biodegradable resin is in the fibrous form, the cost of manufacturing the fibrous form is increased, but can act as an adhesive and a binder at the same time to reduce the amount used during the manufacture of the board, the final board production cost is reduced.
- the biodegradable polymer in powder form may be prepared by pulverizing the biodegradable polymer in a grinder.
- the fibrous biodegradable polymer is melt-extruded from the biodegradable polymer in the form of yarn through a nozzle, quenched the spinning yarn, and then stretched at a draw ratio of 1.1 to 5.5 times and then drawn to the yarn using a crimper. After giving a crimp (Crimp), heat treatment with hot air of 60 ⁇ 150 °C to evaporate the moisture, it can be prepared by cutting to a certain length.
- the diameter of the powder is preferably 0.01 to 1,000 ⁇ m.
- the diameter is less than 0.01 ⁇ m, the energy consumption is too high and economic efficiency is lowered. If the diameter is more than 1,000 ⁇ m, the role of the adhesive is lowered.
- the diameter of the fiber is 5 to 500 ⁇ m
- the length is 1 to 76 mm
- the fiber length to fiber diameter ratio (L / D ratio) is preferably 5 to 2,500.
- the diameter of the fiber is less than 5 mu m, the fiber manufacturing cost increases, and when the diameter is more than 500 mu m, the fiber is not uniformly dispersed in the wood pulp during board production, and the effect as an adhesive is lowered.
- the fiber manufacturing cost increases, and when the length of the fiber exceeds 76 mm, the fibers are entangled with each other so that the fiber is not uniformly dispersed in the wood pulp during board production, thereby reducing the effect as an adhesive.
- the role as a binder is insufficient as in a powder state.
- the fiber exceeds 2,500, the fibers are entangled with each other during board production, so that the fibers are not uniformly dispersed in the wood pulp.
- a mixture of the wood pulp and biodegradable resin prepared is introduced into a mold and then pressurized at a temperature equal to or higher than the melting temperature of the biodegradable resin to form a board.
- Board according to the present invention is composed of 100 parts by weight of wood pulp and 1 to 100 parts by weight of a biodegradable resin having a thermoplastic temperature of 100 ⁇ 170 °C.
- the biodegradable resin is polylactic acid, polybutylene succinate, polyethylene succinate, polyhydroxybutylate, polycaprolactone, etc., and the melting temperature is more preferably 100 to 150 ° C. Do.
- the manufactured board is excellent in biodegradability, and may be secondarily formed into various three-dimensional structures with thermoplastics and applying heat when necessary.
- melt-extruded polylactic acid (biodegradable resin) having a melting temperature of 167 ° C, melt-spun into a yarn form through a nozzle, and then, after spinning the spun yarn, it is drawn at a draw ratio of 2.3 times and then crimped. After giving a crimp, heat-treated with hot air at 80 ° C., and cut to prepare a polylactic acid fiber having a diameter of 20 ⁇ m, a fineness of 2.06 denier, a length of 3 mm, and an L / D ratio of 150.
- the mixture of wood pulp and polylactic acid fiber prepared above was put into a mold having a width of 10 cm, a length of 10 cm, and a height of 15 cm, and then covered with a cover at a temperature of 210 ° C. and a pressure of 60 bar. After preparing the board by pressing for 120 seconds, the result was measured for 24 hours at 25 ° C. and 60% humidity atmosphere.
- PLA is polylactic acid and PBS is polybutylene succinate.
- the secondary moldability was placed on the bottom of the mold having a U-shaped bend having a depth of 30 mm and a radius of curvature of 10 mm. While pressing for 2 minutes with a temperature of 210 ° C. and a pressure of 3 bar, each board is changed to a U shape and then cooled, and a bursting phenomenon is observed by visually observing whether there is any bursting of the board part deformed into a U shape. If there were any defects, and if there was no bursting, they were evaluated as good.
- the board manufactured according to the present invention is composed of only biodegradable resin and wood pulp to express biodegradability, which is environmentally friendly, and includes three-dimensional forms having various bends in a heated state, including biodegradable resins having thermoplastics instead of conventional thermosetting resins. Secondary molding is possible, so it is useful not only for building flooring but also for automotive parts such as door trim and headline.
Abstract
According to the present invention, a biodegradable board is made of wood pulp and a thermoplastic biodegradable resin having a melting point of 100 to 170°C, wherein the content of the biodegradable resin is 1 to 100 parts by weight relative to 100 parts by weight of wood pulp. The method for manufacturing a biodegradable board according to the present invention comprises mixing and dispersing 100 parts by weight of wood pulp and 1 to 100 parts by weight of a thermoplastic biodegradable resin having a melting point of 100 to 170°C so as to obtain a mixture of the wood pulp and biodegradable resin, injecting the mixture of the wood pulp and biodegradable resin into a mold, and pressurizing the mixture at a temperature higher than the melting point of the biodegradable resin so as to mold a board. The board manufactured by the method of the present invention is made of only a biodegradable resin and wood pulp so as to be biodegradable and thus eco-friendly. The board manufactured by the method of the present invention comprises a thermoplastic biodegradable resin instead of conventional thermosetting resins, and enables, when the mixture is heated, secondary molding for transforming the board into a three-dimensional shape having various curvatures. Thus, the board of the present invention can be effectively used as a building flooring material and a vehicle component material such as a door trim and a headline.
Description
본 발명은 생분해성 보드(Board)의 제조방법 및 이로 제조된 생분해성 보드에 관한 것으로서, 보다 구체적으로는 생분해성과 동시에 가열시 2차 성형도 가능하여 3차원적 구조가 요구되는 다양한 산업분야 제품의 소재로도 사용이 가능한 생분해성 보드의 제조방법 및 이로 제조된 생분해성 보드에 관한 것이다.The present invention relates to a method for manufacturing a biodegradable board (Board) and to a biodegradable board manufactured therefrom, more specifically, the biodegradability and the secondary molding upon heating at the same time can be a variety of industrial products that require a three-dimensional structure The present invention relates to a method for manufacturing a biodegradable board that can be used as a material, and a biodegradable board made therefrom.
보드(Board)를 제조하는 종래방법으로는 목재펄프인 기재에 멜라민 수지, 요소수지 들과 같은 열경화성 수지를 용매에 녹인 액상 수지를 스프레이 또는 도포한 다음, 이를 고온 및 고압 조건하에서 압착하여 보드를 제조하는 방법이 사용되어 왔다.Conventional methods of manufacturing boards include spraying or applying a liquid resin in which a thermosetting resin, such as melamine resin and urea resins, is dissolved in a solvent to a substrate which is wood pulp, and then compressing them under high temperature and high pressure to manufacture a board. Method has been used.
상기 종래기술에서 열경화성 수지는 목재펄프들을 서로 접착시키는 접착제의 역할을 하였다.In the prior art, the thermosetting resin served as an adhesive for bonding wood pulp to each other.
상기와 같은 종래방법으로 제조된 보드는 열경화성 수지를 접착제로 사용하기 때문에 생분해성이 없고 친환경적이지 못한 뿐만 아니라 제조된 보드를 가열하여 다양한 3차원적 구조로 변형시킬 수 없어서, 다시 말해 2차 성형이 불가능하여 3차원적의 다양한 구조가 요구되는 산업분야 부품으로는 사용될 수 없고 단지 바닥재 등으로만 사용이 가능한 문제점이 있었다.The board manufactured by the conventional method as described above is not biodegradable and not environmentally friendly because it uses a thermosetting resin as an adhesive, and can not be transformed into various three-dimensional structures by heating the manufactured board, that is, secondary molding is There is a problem that can not be used as parts of the industrial field that requires a variety of three-dimensional structure because it is impossible to use only as a flooring material.
본 발명의 과제는 생분해성이 뛰어나며 다양한 3차원적 구조로 2차 성형이 가능한 보드를 제조하는 방법 및 이로 제조된 생분해성 보드를 제공하는 것이다.An object of the present invention is to provide a method for producing a board that is excellent in biodegradability and capable of secondary molding into various three-dimensional structures, and a biodegradable board made therefrom.
이와 같은 과제를 달성하기 위해서 본 발명에서는 목재 펄프 100중량부와 용융온도가 100~170℃로서 열가소성을 갖는 생분해성 수지 1~100중량부를 혼합, 분산하여 목재펄프와 상기 생분해성 수지의 혼합물을 제조한 다음, 제조된 상기 목재펄프와 생분해성 수지의 혼합물을 금형내에 투입한 다음 상기 생분해성 수지의 용융온도 이상의 온도에서 압력을 가하여 보드를 성형한다.In order to achieve the above object, in the present invention, 100 parts by weight of wood pulp and 1 to 100 parts by weight of biodegradable resin having thermoplasticity with a melting temperature of 100 to 170 ° C. are mixed and dispersed to prepare a mixture of wood pulp and the biodegradable resin. Then, the prepared mixture of wood pulp and biodegradable resin is introduced into a mold and then pressurized at a temperature above the melting temperature of the biodegradable resin to form a board.
이때, 사용되는 생분해성 수지는 분말형태 또는 섬유상 형태이다.At this time, the biodegradable resin used is in the form of a powder or fibrous form.
본 발명으로 제조된 보드는 생분해성 수지와 목재펄프만으로 구성되어 생분해성을 발현하여 친환경적이며, 종래 열경화성 수지 대신에 열가소성을 갖는 생분해성 수지를 포함하여 가열된 상태에서 여러가지 굴곡을 가지는 3차원적 형태로 변형시키는 2차 성형이 가능하여 건물 바닥재뿐만 아니라 도어트림, 헤드라인 등과 같은 자동자 부품소재 등으로 유용하다.The board manufactured according to the present invention is composed of only biodegradable resin and wood pulp to express biodegradability, which is environmentally friendly, and includes three-dimensional forms having various bends in a heated state, including biodegradable resins having thermoplastics instead of conventional thermosetting resins. Secondary molding is possible, so it is useful not only for building flooring but also for automotive parts such as door trim and headline.
이하, 본 발명을 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.
본 발명에 따른 생분해성 보드의 제조방법은 (i) 목재 펄프 100중량부와 용융온도가 100~170℃로서 열가소성을 갖는 생분해성 수지 1~100중량부를 혼합, 분산하여 목재펄프와 상기 생분해성 수지의 혼합물을 제조하는 공정; 및 (ii) 제조된 상기 목재펄프와 생분해성 수지의 혼합물을 금형내에 투입한 다음 상기 생분해성 수지의 용융온도 이상의 온도에서 압력을 가하여 보드를 성형하는 공정;을 포함한다.Method for producing a biodegradable board according to the present invention is (i) wood pulp and the biodegradable resin by mixing and dispersing 100 parts by weight of wood pulp and 1 to 100 parts by weight of a biodegradable resin having a thermoplastic melt temperature of 100 ~ 170 ℃ Preparing a mixture of; And (ii) injecting the prepared mixture of wood pulp and biodegradable resin into a mold and then applying a pressure at a temperature equal to or higher than the melting temperature of the biodegradable resin to form a board.
구체적으로, 본 발명에서는 먼저 목재 펄프 100중량부와 용융온도가 100~170℃로서 열가소성을 갖는 생분해성 수지 1~100중량부를 혼합, 분산하여 목재펄프와 상기 생분해성 수지의 혼합물을 제조한다.Specifically, in the present invention, 100 parts by weight of wood pulp and 1 to 100 parts by weight of a biodegradable resin having a thermoplastic melt temperature of 100 to 170 ° C. are mixed and dispersed to prepare a mixture of wood pulp and the biodegradable resin.
이때, 목재펄프와 상기 생분해성 수지의 혼합, 분산을 위해 분산설비를 사용한다.At this time, a dispersion facility is used for mixing and dispersing the wood pulp and the biodegradable resin.
상기 생분해성 수지의 용융온도는 100~170℃, 보다 바람직하기로는 100~150℃인 것이 성형공정 및 2차 가공 공정에서 에너지 소비량을 감소하는데 좋다.Melting temperature of the biodegradable resin is 100 ~ 170 ℃, more preferably 100 ~ 150 ℃ it is good to reduce the energy consumption in the molding process and the secondary processing process.
상기 생분해성 고분자는 폴리락틱산(Polylactic acid), 폴리부틸렌석시네이트(Polybuthylene succinate), 폴리에틸렌석시네이트, 폴리히드록시부틸레이트, 폴리카프로락톤 등이다.The biodegradable polymer is polylactic acid, polybutylene succinate, polyethylene succinate, polyhydroxybutylate, polycaprolactone, or the like.
목재펄프 100중량부에 대하여 상기 생분해성 수지가 1중량부 미만이면 접착제 역할이 미약하여 보드 성형이 어렵게 되고, 100중량부를 초과하게 되면 제조된 보드의 강성이 낮아져 2차 성형후 제품의 외관이 저하된다.When the biodegradable resin is less than 1 part by weight with respect to 100 parts by weight of wood pulp, the role of the adhesive is weak, making board molding difficult, and when it exceeds 100 parts by weight, the rigidity of the manufactured board is lowered, and the appearance of the product after the secondary molding is lowered. do.
상기 생분해성 수지는 분말 형태 또는 섬유상 형태이며, 보다 바람직하기로는 섬유상 형태인 것이 좋다.The biodegradable resin is in powder or fibrous form, and more preferably in fibrous form.
상기 생분해성 수지가 분말형태인 경우에는 제조비용은 절감되나 접착제와 바인더 역할을 동시에 할 수 없어서 보드 제조시 사용량이 증가하게 된다.When the biodegradable resin is in powder form, the manufacturing cost is reduced, but the amount of use of the board is increased because the biodegradable resin cannot serve as an adhesive and a binder at the same time.
한편, 생분해성 수지가 섬유상 형태인 경우에는 섬유상 형태로 제조하는 비용은 증가하나 접착제와 바인더 역할을 동시에 할 수 있어서 보드 제조시 사용량이 감소하게되어 최종 보드 생산비용은 절감된다.On the other hand, if the biodegradable resin is in the fibrous form, the cost of manufacturing the fibrous form is increased, but can act as an adhesive and a binder at the same time to reduce the amount used during the manufacture of the board, the final board production cost is reduced.
분말 상태의 생분해성 고분자는 생분해성 고분자를 분쇄기에 넣은 후 분쇄하여 제조할 수 있다. 섬유상 생분해성 고분자는 생분해성 고분자를 용융압출 시켜서 노즐을 통해 실 형태로 용융방사한 다음, 방사된 실을 급냉시킨 후 1.1~5.5배의 연신비로 연신한 다음, 계속해서 크림퍼를 이용해서 실에 크림프(Crimp)를 부여한 다음, 60~150℃의 열풍으로 열처리하여 수분을 증발시킨 다음, 일정길이로 절단하여 제조할 수 있다.The biodegradable polymer in powder form may be prepared by pulverizing the biodegradable polymer in a grinder. The fibrous biodegradable polymer is melt-extruded from the biodegradable polymer in the form of yarn through a nozzle, quenched the spinning yarn, and then stretched at a draw ratio of 1.1 to 5.5 times and then drawn to the yarn using a crimper. After giving a crimp (Crimp), heat treatment with hot air of 60 ~ 150 ℃ to evaporate the moisture, it can be prepared by cutting to a certain length.
생분해성 고분자가 분말 상태인 경우 분말의 직경은 0.01~1,000㎛인 것이 바람직하다.When the biodegradable polymer is in a powder state, the diameter of the powder is preferably 0.01 to 1,000 μm.
상기 직경이 0.01㎛ 미만인 경우에는 에너지 소모가 너무 많아져 경제성이 떨어지고, 1,000㎛를 초과하는 경우에는 접착제의 역할이 저하된다.If the diameter is less than 0.01 μm, the energy consumption is too high and economic efficiency is lowered. If the diameter is more than 1,000 μm, the role of the adhesive is lowered.
생분해성 고분자가 섬유 형태인 경우 섬유의 직경은 5~500㎛이고, 길이가 1~76㎜이고, 섬유 길이 : 섬유 직경비(L/D비)가 5~2,500인 것이 바람직하다.When the biodegradable polymer is in the form of a fiber, the diameter of the fiber is 5 to 500 μm, the length is 1 to 76 mm, and the fiber length to fiber diameter ratio (L / D ratio) is preferably 5 to 2,500.
섬유의 직경이 5㎛ 미만인 경우에는 섬유 제조비용이 상승하고, 500㎛를 초과하는 경우에는 보드 제조시 섬유가 목재펄프내에 균일하게 분산되지 않아 접착제로서의 효과가 저하된다.When the diameter of the fiber is less than 5 mu m, the fiber manufacturing cost increases, and when the diameter is more than 500 mu m, the fiber is not uniformly dispersed in the wood pulp during board production, and the effect as an adhesive is lowered.
섬유의 길이 1㎜미만인 경우에는 섬유 제조비용이 상승하고, 섬유 길이가 76㎜를 초과하는 경우에는 상기 섬유들이 서로 엉켜서 보드 제조시 섬유가 목재펄프내에 균일하게 분산되지 않아 접착제로서의 효과가 저하된다.When the length of the fiber is less than 1 mm, the fiber manufacturing cost increases, and when the length of the fiber exceeds 76 mm, the fibers are entangled with each other so that the fiber is not uniformly dispersed in the wood pulp during board production, thereby reducing the effect as an adhesive.
섬유의 L/D비가 5 미만인 경우에는 분말 상태와 같이 바인더로서의 역할이 미흡하게 되고, 2,500을 초과하는 경우에는 보드 제조시 섬유끼리 엉키는 현상이 발생되어 목재펄프 내에 섬유가 균일하게 분산되지 않게 된다.When the L / D ratio of the fiber is less than 5, the role as a binder is insufficient as in a powder state. When the fiber exceeds 2,500, the fibers are entangled with each other during board production, so that the fibers are not uniformly dispersed in the wood pulp.
다음으로, 본 발명에서는 제조된 상기 목재펄프와 생분해성 수지의 혼합물을 금형내에 투입한 다음 상기 생분해성 수지의 용융온도 이상의 온도에서 압력을 가하여 보드를 성형한다.Next, in the present invention, a mixture of the wood pulp and biodegradable resin prepared is introduced into a mold and then pressurized at a temperature equal to or higher than the melting temperature of the biodegradable resin to form a board.
본 발명에 따른 보드는 목재펄프 100중량부와 용융온도가 100~170℃이며 열가소성을 갖는 생분해성 수지 1~100중량부로 이루어진다. 상기 생분해성 수지는 폴리락틱산(Polylactic acid), 폴리부틸렌석시네이트(Polybuthylene succinate), 폴리에틸렌석시네이트, 폴리히드록시부틸레이트, 폴리카프로락톤 등이며 용융온도가 100~150℃인 것이 보다 바람직하다. 그로 인해 제조된 보드는 생분해성이 우수하게 되고, 열가소성을 구비하여 필요시 열을 가하면서 다양한 3차원적 구조로 2차 성형될 수 있다.Board according to the present invention is composed of 100 parts by weight of wood pulp and 1 to 100 parts by weight of a biodegradable resin having a thermoplastic temperature of 100 ~ 170 ℃. The biodegradable resin is polylactic acid, polybutylene succinate, polyethylene succinate, polyhydroxybutylate, polycaprolactone, etc., and the melting temperature is more preferably 100 to 150 ° C. Do. As a result, the manufactured board is excellent in biodegradability, and may be secondarily formed into various three-dimensional structures with thermoplastics and applying heat when necessary.
이하, 실시예를 통하여 본 발명을 보다 구체적으로 살펴본다.Hereinafter, the present invention will be described in more detail with reference to Examples.
그러나, 본 발명의 보호범위는 하기 실시예만으로 한정되는 것은 아니다.However, the protection scope of the present invention is not limited only to the following examples.
실시예 1Example 1
용융온도가 167℃인 폴리락틱산(생분해성 수지)를 용융압출하여 노즐을 통해 실 형태로 용융방사한 다음, 방사된 실을 급행시킨 후 2.3배의 연신비로 연신한 다음, 크림퍼를 이용하여 크림프를 부여한 다음 80℃의 열풍으로 열처리한 후 절단하여 직경이 20㎛이고 섬도가 2.06데니어이고, 길이가 3㎜이고, L/D비가 150인 폴리락틱산 섬유를 제조하였다.Melt-extruded polylactic acid (biodegradable resin) having a melting temperature of 167 ° C, melt-spun into a yarn form through a nozzle, and then, after spinning the spun yarn, it is drawn at a draw ratio of 2.3 times and then crimped. After giving a crimp, heat-treated with hot air at 80 ° C., and cut to prepare a polylactic acid fiber having a diameter of 20 μm, a fineness of 2.06 denier, a length of 3 mm, and an L / D ratio of 150.
다음으로, 배치형 믹서내에 목재펄프 100g과 위에서 제조된 폴리락틱산 섬유 20g을 투입한 후 혼합 및 분산시켜 목재펄프와 폴리락틱산 섬유의 혼합물을 제조하였다.Next, 100 g of wood pulp and 20 g of polylactic acid fiber prepared above were added to a batch mixer, followed by mixing and dispersing to prepare a mixture of wood pulp and polylactic acid fiber.
다음으로, 위에서 제조된 목재펄프와 폴리락틱산 섬유의 혼합물 가로 10㎝, 세로 10㎝ 및 높이 15㎝ 크기의 금형내에 투입한 다음, 덮개를 덮고 210℃의 온도 및 60바(bar)의 압력으로 120초 동안 압력하여 보드를 제조한 후 25℃, 60%습도 분위기에서 24시간 보관한 후 물성을 측정한 결과는 표 2와 같았다.Next, the mixture of wood pulp and polylactic acid fiber prepared above was put into a mold having a width of 10 cm, a length of 10 cm, and a height of 15 cm, and then covered with a cover at a temperature of 210 ° C. and a pressure of 60 bar. After preparing the board by pressing for 120 seconds, the result was measured for 24 hours at 25 ° C. and 60% humidity atmosphere.
실시예 2 내지 실시예 5Examples 2-5
제조조건을 표 1과 같이 변경한 것을 제외하고는 실시예 1과 동일하게 보드를 제조한 후 25℃, 60% 습도 분위기에서 24시간 보관한 후 물성을 측정한 결과는 표 2와 같았다.Except for changing the manufacturing conditions as shown in Table 1, after manufacturing the board in the same manner as in Example 1 and stored in 25 ℃, 60% humidity atmosphere for 24 hours after measuring the physical properties were shown in Table 2.
표 1 제조조건
Table 1 Manufacture conditions
| 구분 | 실시예 | |||||
| 1 | 2 | 3 | 4 | 5 | ||
| 생분해성수지 | 종류 | PLA | PLA | PLA | PBS | PLA |
| 형태 | 섬유 | 섬유 | 섬유 | 분말 | 분말 | |
| 용융온도(℃) | 167 | 130 | 130 | 167 | 130 | |
| 혼합비율 | 목재펄프 | 100 | 100 | 100 | 100 | 100 |
| 생분해성수지분말 | - | - | - | 80 | 60 | |
| 생분해성수지섬유 | 20 | 10 | 100 | - | - | |
| 섬유 | 직경(㎛) | 20 | 5 | 5 | - | - |
| 데니어 | 2.06 | 0.1 | 0.1 | - | - | |
| 길이(㎜) | 3 | 12 | 3 | - | - | |
| L/D 비 | 150 | 2,400 | 600 | - | - | |
| 분말직경(㎛) | - | - | - | 8 | 60 | |
| 성형조건 | 온도(℃) | 210 | 180 | 160 | 180 | 170 |
| 압력(bar) | 60 | 60 | 40 | 60 | 30 | |
| 시간(초) | 120 | 120 | 180 | 250 | 210 | |
| division | Example | |||||
| One | 2 | 3 | 4 | 5 | ||
| Biodegradable Resin | Kinds | PLA | PLA | PLA | PBS | PLA |
| shape | fiber | fiber | fiber | powder | powder | |
| Melting temperature (℃) | 167 | 130 | 130 | 167 | 130 | |
| Mixing ratio | Wood pulp | 100 | 100 | 100 | 100 | 100 |
| Biodegradable Resin Powder | - | - | - | 80 | 60 | |
| Biodegradable Resin Fiber | 20 | 10 | 100 | - | - | |
| fiber | Diameter (μm) | 20 | 5 | 5 | - | - |
| Denier | 2.06 | 0.1 | 0.1 | - | - | |
| Length (mm) | 3 | 12 | 3 | - | - | |
| L / D ratio | 150 | 2,400 | 600 | - | - | |
| Powder diameter (㎛) | - | - | - | 8 | 60 | |
| Molding conditions | Temperature (℃) | 210 | 180 | 160 | 180 | 170 |
| Pressure (bar) | 60 | 60 | 40 | 60 | 30 | |
| Time in seconds | 120 | 120 | 180 | 250 | 210 | |
* 표 1에서 PLA는 폴리락틱산이고, PBS는 폴리부틸렌석시네이트 이다.In Table 1, PLA is polylactic acid and PBS is polybutylene succinate.
표 2 보드 물성평가 결과
TABLE 2 Board property evaluation result
| 구분 | 두께 | 빈도 | 2차 성형성 |
| 실시예 1 | 12 | 0.62 | 양호(터짐 없음) |
| 실시예 2 | 9 | 0.72 | 양호(터짐 없음) |
| 실시예 3 | 12 | 0.4 | 양호(터짐 없음) |
| 실시예 4 | 6 | 0.52 | 양호(터짐 없음) |
| 실시예 5 | 8 | 0.35 | 양호(터짐 없음) |
| division | thickness | frequency | 2nd formability |
| Example 1 | 12 | 0.62 | Good (no burst) |
| Example 2 | 9 | 0.72 | Good (no burst) |
| Example 3 | 12 | 0.4 | Good (no burst) |
| Example 4 | 6 | 0.52 | Good (no burst) |
| Example 5 | 8 | 0.35 | Good (no burst) |
표 2에서 2차 성형성은 깊이가 30㎜이고 곡율반경이 10㎜인 U자형 굴곡을 가지는 금형 하단에 실시예 1 내지 실시예 5로 제조한 보드(20㎜×20㎜) 각각을 올려놓고 금형 상판으로 2분 동안 눌러주면서 210℃의 온도 및 3bar의 압력을 가하여 상기 보드 각각을 U자형으로 변경시킨 후 냉각하고, U자형으로 변형된 보드 부분의 터짐현상이 있는지 여부를 육안으로 관찰하여 터짐현상이 있으면 불량, 터짐현상이 없으면 양호로 각각 평가하였다.In Table 2, the secondary moldability was placed on the bottom of the mold having a U-shaped bend having a depth of 30 mm and a radius of curvature of 10 mm. While pressing for 2 minutes with a temperature of 210 ° C. and a pressure of 3 bar, each board is changed to a U shape and then cooled, and a bursting phenomenon is observed by visually observing whether there is any bursting of the board part deformed into a U shape. If there were any defects, and if there was no bursting, they were evaluated as good.
본 발명으로 제조된 보드는 생분해성 수지와 목재펄프만으로 구성되어 생분해성을 발현하여 친환경적이며, 종래 열경화성 수지 대신에 열가소성을 갖는 생분해성 수지를 포함하여 가열된 상태에서 여러가지 굴곡을 가지는 3차원적 형태로 변형시키는 2차 성형이 가능하여 건물 바닥재뿐만 아니라 도어트림, 헤드라인 등과 같은 자동자 부품소재 등으로 유용하다.The board manufactured according to the present invention is composed of only biodegradable resin and wood pulp to express biodegradability, which is environmentally friendly, and includes three-dimensional forms having various bends in a heated state, including biodegradable resins having thermoplastics instead of conventional thermosetting resins. Secondary molding is possible, so it is useful not only for building flooring but also for automotive parts such as door trim and headline.
Claims (10)
- (i) 목재 펄프 100중량부와 용융온도가 100~170℃로서 열가소성을 갖는 생분해성 수지 1~100중량부를 혼합, 분산하여 목재펄프와 상기 생분해성 수지의 혼합물을 제조하는 공정; 및(i) mixing 100 parts by weight of wood pulp with 1-100 parts by weight of a biodegradable resin having a thermoplastic melt temperature of 100-170 ° C. to produce a mixture of wood pulp and the biodegradable resin; And(ii) 제조된 상기 목재펄프와 생분해성 수지의 혼합물을 금형내에 투입한 다음 상기 생분해성 수지의 용융온도 이상의 온도에서 압력을 가하여 보드를 성형하는 공정;을 포함하는 것을 특징으로 하는 생분해성 보드의 제조방법.(ii) injecting the prepared mixture of wood pulp and biodegradable resin into a mold and then applying a pressure at a temperature equal to or higher than the melting temperature of the biodegradable resin to form a board; Manufacturing method.
- 제1항에 있어서, 생분해성 수지의 용융온도가 100~150℃인 것을 특징으로 하는 생분해성 보드의 제조방법.The method for producing a biodegradable board according to claim 1, wherein the melting temperature of the biodegradable resin is 100 to 150 ° C.
- 제1항에 있어서, 생분해성 수지는 폴리락틱산(Polylactic acid), 폴리히드록시부틸레이트, 폴리카프로락톤, 폴리에틸렌석시네이트 및 폴리부틸렌석시네이트(Polybuthylene succinate) 중에서 선택된 1종의 수지인 것을 특징으로 하는 생분해성 보드의 제조방법.The method of claim 1, wherein the biodegradable resin is one resin selected from polylactic acid, polyhydroxybutylate, polycaprolactone, polyethylene succinate and polybutylene succinate. Method for producing a biodegradable board characterized in that.
- 제1항에 있어서, 상기 생분해성 수지는 분말 형태인 것을 특징으로 하는 생분해성 보드의 제조방법.The method of claim 1, wherein the biodegradable resin is in powder form.
- 제4항에 있어서, 분말형태인 생분해성 수지의 직경이 0.01~1,000㎛인 것을 특징으로 하는 생분해성 보드의 제조방법.The method of claim 4, wherein the diameter of the biodegradable resin in powder form is 0.01 ~ 1,000㎛.
- 제1항에 있어서, 상기 생분해성 수지는 섬유 형태인 것을 특징으로 하는 생분해성 보드의 제조방법.The method of claim 1, wherein the biodegradable resin is in the form of a fiber.
- 제6항에 있어서, 섬유형태인 생분해성 수지는 직경이 5~500㎛이고, 길이가 1~76㎜이고, 길이/직경(L/D)비가 5~2,500인 것을 특징으로 하는 생분해성 보드의 제조방법.The biodegradable resin according to claim 6, wherein the fibrous biodegradable resin has a diameter of 5 to 500 µm, a length of 1 to 76 mm, and a length / diameter (L / D) ratio of 5 to 2,500. Manufacturing method.
- 목재펄프와 용융온도가 100~170℃로서 열가소성을 갖는 생분해성 수지로 구성되며, 상기 생분해성 수지의 함량은 목재펄프 100중량부에 대해 1~100중량부인 것을 특징으로 하는 생분해성 보드.Biodegradable board comprising a wood pulp and a biodegradable resin having a thermoplastic melting temperature of 100 ~ 170 ℃, the content of the biodegradable resin is 1 to 100 parts by weight based on 100 parts by weight of wood pulp.
- 제8항에 있어서, 생분해성 수지의 용융온도가 100~150℃인 것을 특징으로 하는 생분해성 보드.The biodegradable board according to claim 8, wherein the melting temperature of the biodegradable resin is 100 to 150 ° C.
- 제1항에 있어서, 생분해성 수지는 폴리락틱산(Polylactic acid), 폴리히드록시부틸레이트, 폴리카프로락톤, 폴리에틸렌석시네이트 및 폴리부틸렌석시네이트(Polybuthylene succinate) 중에서 선택된 1종의 수지인 것을 특징으로 하는 생분해성 보드.The method of claim 1, wherein the biodegradable resin is one resin selected from polylactic acid, polyhydroxybutylate, polycaprolactone, polyethylene succinate and polybutylene succinate. Biodegradable board characterized by.
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| KR10-2012-0013516 | 2012-02-10 | ||
| KR10-2012-0013519 | 2012-02-10 | ||
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| KR20120013516 | 2012-02-10 |
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|---|---|---|---|---|
| JPH07119098A (en) * | 1993-10-14 | 1995-05-09 | Showa Highpolymer Co Ltd | Biodegradable board and molded article |
| JP2001258399A (en) * | 2000-03-22 | 2001-09-25 | Tokai Kasei Corp | Biodegradable vessel for cultivating plant |
| JP2004321069A (en) * | 2003-04-24 | 2004-11-18 | Hokuetsu Paper Mills Ltd | Biodegradable and integrally assemblable planter pot |
| JP2007195445A (en) * | 2006-01-26 | 2007-08-09 | Katsumi Imanishi | Vegetation board |
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2012
- 2012-02-16 WO PCT/KR2012/001154 patent/WO2013118930A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07119098A (en) * | 1993-10-14 | 1995-05-09 | Showa Highpolymer Co Ltd | Biodegradable board and molded article |
| JP2001258399A (en) * | 2000-03-22 | 2001-09-25 | Tokai Kasei Corp | Biodegradable vessel for cultivating plant |
| JP2004321069A (en) * | 2003-04-24 | 2004-11-18 | Hokuetsu Paper Mills Ltd | Biodegradable and integrally assemblable planter pot |
| JP2007195445A (en) * | 2006-01-26 | 2007-08-09 | Katsumi Imanishi | Vegetation board |
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