KR101175308B1 - Wood Plastic Composite Compositions and Profiles - Google Patents
Wood Plastic Composite Compositions and Profiles Download PDFInfo
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- KR101175308B1 KR101175308B1 KR1020090110873A KR20090110873A KR101175308B1 KR 101175308 B1 KR101175308 B1 KR 101175308B1 KR 1020090110873 A KR1020090110873 A KR 1020090110873A KR 20090110873 A KR20090110873 A KR 20090110873A KR 101175308 B1 KR101175308 B1 KR 101175308B1
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- polyolefin resin
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- 239000000203 mixture Substances 0.000 title claims abstract description 77
- 239000011155 wood-plastic composite Substances 0.000 title claims abstract description 77
- 229920001587 Wood-plastic composite Polymers 0.000 title claims abstract description 75
- 239000002023 wood Substances 0.000 claims abstract description 89
- 235000013312 flour Nutrition 0.000 claims abstract description 44
- 239000000843 powder Substances 0.000 claims abstract description 33
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 22
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 21
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 239000000314 lubricant Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000003086 colorant Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000004743 Polypropylene Substances 0.000 claims description 18
- 229920001155 polypropylene Polymers 0.000 claims description 18
- -1 polypropylene Polymers 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 10
- 239000008188 pellet Substances 0.000 claims description 7
- 229920013716 polyethylene resin Polymers 0.000 claims description 7
- 238000004898 kneading Methods 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 239000004611 light stabiliser Substances 0.000 claims description 4
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 4
- 239000000344 soap Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 16
- 238000010521 absorption reaction Methods 0.000 abstract description 13
- 238000007654 immersion Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 230000002542 deteriorative effect Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 14
- 229920000573 polyethylene Polymers 0.000 description 6
- 229920000098 polyolefin Polymers 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 5
- 239000002105 nanoparticle Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 4
- 229920002522 Wood fibre Polymers 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002025 wood fiber Substances 0.000 description 3
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 235000019359 magnesium stearate Nutrition 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 150000004756 silanes Chemical class 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001600 hydrophobic polymer Polymers 0.000 description 1
- 239000001034 iron oxide pigment Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- ORECYURYFJYPKY-UHFFFAOYSA-N n,n'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexane-1,6-diamine;2,4,6-trichloro-1,3,5-triazine;2,4,4-trimethylpentan-2-amine Chemical compound CC(C)(C)CC(C)(C)N.ClC1=NC(Cl)=NC(Cl)=N1.C1C(C)(C)NC(C)(C)CC1NCCCCCCNC1CC(C)(C)NC(C)(C)C1 ORECYURYFJYPKY-UHFFFAOYSA-N 0.000 description 1
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920002397 thermoplastic olefin Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/014—Stabilisers against oxidation, heat, light or ozone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
본 발명은 목분에 함유하고 있는 수분의 함량을 철저하게 관리하지 않으면서도 특성의 저하없이 목재-플라스틱 복합재를 용이하게 제조할 수 있는 목재-플라스틱 복합재용 조성물 및 그 조성물을 사용하여 제조된 목재-플라스틱 복합재에 관한 것으로서, 목분과 폴리올레핀 수지를 포함하는 원료를 배합하여 제조되는 목재-플라스틱 복합재용 조성물에 있어서, 상기 복합재용 조성물은 함수율 0.5%를 초과하는 목분, 폴리올레핀 수지, 알칼리토 금속의 나노 산화물, 상용화제, 윤활제 및 착색제를 포함하고, 상기 상용화제는 상기 복합재용 조성물 전체 중량에서 상기 목분에 함유된 수분을 제외한 중량의 0.3～0.5중량%를 사용하는 것을 특징으로 한다.The present invention provides a composition for wood-plastic composites and wood-plastics prepared using the composition, which can easily produce wood-plastic composites without deteriorating properties without strictly controlling the water content of wood flour. The present invention relates to a composite material, wherein the composition for wood-plastic composites prepared by mixing wood flour and a raw material including a polyolefin resin, wherein the composite composition comprises wood oxide, polyolefin resin, nano-oxide of alkaline earth metal, Compatibilizers, lubricants and colorants are included, wherein the compatibilizer is characterized in that 0.3 to 0.5% by weight of the total weight of the composition for composites excluding moisture contained in the wood powder.
본 발명에 따른 목재-플라스틱 복합재용 조성물 및 그 조성물을 사용하여 제조된 목재-플라스틱 복합재에 의하면 목분의 수분함량을 철저하게 관리하지 않고도 굴곡강도 등의 특성의 저하없이 그 복합재의 압출생산 속도를 현저하게 향상시킬 수 있는 효과가 있다.According to the composition of the wood-plastic composite according to the present invention and the wood-plastic composite manufactured using the composition, the extrusion production speed of the composite material is remarkably increased without deteriorating the bending strength and the like without having to thoroughly control the moisture content of wood flour. There is an effect that can be improved.
목재, 플라스틱, 복합재, 합성목재, WPC, 목분, 폴리올레핀 수지, 알칼리토금속 산화물, 굴곡강도, 침지흡수율 Wood, plastic, composite, synthetic wood, WPC, wood flour, polyolefin resin, alkaline earth metal oxide, flexural strength, immersion absorption rate
Description
본 발명은 목재-플라스틱 복합재용 조성물 및 그 조성물을 사용하여 제조된 목재-플라스틱 복합재에 관한 것으로서, 더욱 상세하게는 목재와 플라스틱을 포함하는 목재-플라스틱 복합재용 조성물에 나노입자의 알칼리토금속 산화물을 첨가함으로써, 목분에 함유하고 있는 수분의 함량을 철저하게 관리하지 않으면서도 목재-플라스틱 복합재에 대한 특성의 저하없이 그 복합재를 용이하게 제조할 수 있는 목재-플라스틱 복합재용 조성물 및 그 조성물을 사용하여 제조된 목재-플라스틱 복합재에 관한 것이다.The present invention relates to a composition for wood-plastic composites and to wood-plastic composites prepared using the composition, and more particularly to adding alkaline earth metal oxides of nanoparticles to the composition for wood-plastic composites including wood and plastics. Thus, the composition for wood-plastic composites and the composition prepared using the composition can be easily produced without deteriorating the properties of wood-plastic composites without thorough control of the water content in wood flour. A wood-plastic composite material.
열가소성 올레핀 수지에 목분을 첨가하여 제조하는 목재-플라스틱 복합재(WPC : wood-plastic composite)는 재활용이 가능한 건자재로서 환경 친화적이기 때문에 근래 그 개발이 활발하게 이루어지고 있다. 목재-플라스틱 복합재는 친수성 목분 또는 목섬유와 소수성 폴리올레핀 수지를 효과적으로 고르게 분산하여 밀착되게 결합시켜 제조하여야 충분한 굴곡강도와 내수성 등의 성능이 얻어진다.Wood-plastic composites (WPC: wood-plastic composites) manufactured by adding wood powder to thermoplastic olefin resins have been actively developed since they are environmentally friendly as recyclable building materials. The wood-plastic composite should be manufactured by dispersing the hydrophilic wood flour or wood fiber and hydrophobic polyolefin resin effectively and evenly and tightly to obtain sufficient flexural strength and water resistance.
이와 관련된 특허기술이 등록되어 있고, 여기에는 무수말레산 함유 폴리머 등의 상용화제(compatibilizer)의 사용이 보편화되어 있다.Patent technology related thereto is registered, and the use of a compatibilizer such as a maleic anhydride-containing polymer is common.
한국 공개특허공보 10-2007-0100266호(다우 글로벌 테크놀로지스 인크)에 의하면, 목섬유를 불포화 실란 함유 폴리머로 처리하여 강도가 우수한 목재-플라스틱 복합재를 제조하는 기술이 개시되어 있다.Korean Patent Laid-Open Publication No. 10-2007-0100266 (Dow Global Technologies Inc.) discloses a technique for producing wood-plastic composite having excellent strength by treating wood fibers with an unsaturated silane-containing polymer.
동 공보에 의한 기술에서는 목섬유의 친수성 기능기(-OH)에 불포화 실란을 결합시킴으로써, 소수성 폴리머 사슬을 목분 표면에 형성하여 올레핀 수지와의 결합을 촉진하는 기술이 그 배경이지만 목분의 수분 함량이 높아지면 그 효과를 알 수 없다.In the technique of this publication, the technique of bonding unsaturated silane to the hydrophilic functional group (-OH) of wood fibers to form hydrophobic polymer chains on the surface of wood flour to promote the bond with olefin resin, but the water content of wood flour is high. The effect is unknown.
미국 특허 제6,682,789호(테크우드 인터내셔널)에 의하면, 목분의 수분함량이 높으면 상용화제의 효능이 떨어지므로 0.1～0.35% 수준으로 철저하게 관리하여 우수한 목재-플라스틱 복합재를 생산할 수 있는 기술내용이 개시되어 있다.According to U.S. Patent No. 6,682,789 (Techwood International), a high content of wood powder decreases the efficacy of the compatibilizer, and thus, a technology content capable of producing a superior wood-plastic composite material by thoroughly managing it at a level of 0.1 to 0.35% is disclosed. have.
또한, 미국 특허 제6,929,841호(테크우드 인터내셔널)에 의하면, 수분함량을 0.5%이하로 잘 말린 장섬유 목분(길이/폭 = 6～30)을 총중량에 대하여 50～70% 배합하여 성능이 우수한 목재-플라스틱 복합재를 생산하는 기술이 개시되어 있다.In addition, according to US Patent No. 6,929,841 (Techwood International), 50 to 70% of the total weight of dried long-fiber wood flour (length / width = 6 to 30) with a moisture content of 0.5% or less is blended to provide excellent performance. A technique for producing plastic composites is disclosed.
이들 문헌에 개시된 기술과 본 발명의 실험에 따르면 목분과 폴리올레핀 수지의 분산과 결합이 목재-플라스틱 복합재의 성능을 좌우하는 관건이며, 이를 위하여 올레핀 수지의 종류, 목분의 종류와 수분함량, 상용화제의 종류와 배합비 등이 주요 관리 대상이 된다. 특히, 목분의 수분함량이 높을 경우 수지와 목분의 분산 및 밀착이 어렵지만 상용화제를 충분히 사용하면 일정 수준의 목재-플라스틱 복합재를 제조할 수 있다.According to the techniques disclosed in these documents and the experiments of the present invention, the dispersion and bonding of wood flour and polyolefin resin is a key factor in the performance of wood-plastic composites. For this purpose, the type of olefin resin, the type and content of wood flour, Types and compounding costs are the main management targets. In particular, when the water content of wood flour is high, it is difficult to disperse and adhere the resin and wood powder, but if enough compatibilizer is used, a certain level of wood-plastic composite can be produced.
그러나, 가장 널리 쓰이는 무수말레산을 함유한 폴리올레핀 계통의 상용화제를 충분히 사용하려면 그 제조 원가가 대단히 높아지는 문제가 발생된다.However, if the most widely used polyolefin-based compatibilizer containing maleic anhydride is used sufficiently, the cost of manufacturing thereof is very high.
또한, 목재-플라스틱 복합재를 제조할 때 목분의 함량을 높이면 압출 성형 속도를 그만큼 높일 수 있으므로 성형품의 생산성을 향상시킬 수는 있으나, 상용화제를 과량 사용하게 되면 강도, 흡수율, 외관 등의 품질이 저하되게 된다.In addition, when manufacturing the wood-plastic composite material, increasing the content of wood powder can increase the extrusion molding speed, so that the productivity of the molded product can be improved. However, when the compatibilizer is used excessively, the quality of strength, absorption rate, appearance, etc. are reduced. Will be.
본 발명자는 이러한 목분의 수분 함량에 따른 문제점을 해결하기 위해 노력한 결과 본 발명에 이르게 되었다.The present inventors have endeavored to solve the problems caused by the moisture content of the wood powder, which led to the present invention.
즉, 목분의 수분이 상용화제의 분산과 밀착 촉진 역할을 방해한다는 사실로부터 먼저 목분의 수분과 반응할 수 있는 재료를 검토하고 여러 가지 방법으로 실험 및 검토하여 본 결과, 칼슘이나 마그네슘 등의 알칼리토금속의 비누(스테아린산 칼슘 또는 스테아린산 마그네슘)를 섭씨 450도에서 열분해하여 얻어지는 나노입자의 알칼리토금속 산화물이 목재에 함유된 수분의 양을 정밀하게 조절하지 않아도 목재-플라스틱 복합재를 제조할 수 있도록 하는 조성물을 발명하게 되었다.In other words, from the fact that the moisture of wood flour interferes with the role of promoting the dispersion and adhesion of the compatibilizer, the material that can react with the moisture of the wood powder is first examined and tested in various ways. As a result, alkaline earth metals such as calcium and magnesium Invented a composition that allows alkaline earth metal oxides of nanoparticles obtained by pyrolysing soaps (calcium stearate or magnesium stearate) at 450 degrees Celsius to produce wood-plastic composites without precisely controlling the amount of water contained in wood Was done.
즉, 목분의 평형 수분 함량인 8% 정도의 목분을 폴리프로필렌이나 폴리에틸렌 수지와 배합할 때, 미세한 나노입자의 금속산화물을 소량의 상용화제와 기타 첨가물과 함께 조합 혼련한 조성물을 용융 혼련하여 압출하면 강도가 높고 흡수율이 낮은 목재-플라스틱 복합재를 연속적으로 생산할 수 있다.That is, when blending about 8% of the wood flour, which is the equilibrium moisture content of wood flour, with polypropylene or polyethylene resin, and extruded by melting and kneading the composition kneaded and kneaded together with a small amount of the compatibilizer and other additives It is possible to continuously produce wood-plastic composites with high strength and low absorption.
문헌 1 : 한국 공개특허공보 제10-2007-0100266호(다우 글로벌 테크놀로지스 인크)Document 1: Korean Unexamined Patent Publication No. 10-2007-0100266 (Dow Global Technologies Inc.)
문헌 2 : 미국 특허 제6,682,789호(테크우드 인터내셔널)Document 2: US Patent No. 6,682,789 (Techwood International)
문헌 3 : 미국 특허 제6,929,841호(테크우드 인터내셔널)Document 3: US Patent 6,929,841 (Techwood International)
따라서, 본 발명의 목적은 상기와 같은 종래의 문제점을 해결하기 위한 것으로서, 목재-플라스틱 복합재의 주성분으로 목분과 폴리올레핀 수지를 사용하여 목재와 흡사한 외관과 질감을 갖는 목재-플라스틱 복합재를 용이하게 제조할 수 있는 목재-플라스틱 복합재용 조성물 및 그 조성물을 사용하여 제조된 목재-플라스틱 복합재를 제공하기 위한 것이다.Accordingly, an object of the present invention is to solve the conventional problems as described above, using wood flour and polyolefin resin as a main component of the wood-plastic composite material to easily produce a wood-plastic composite having a similar appearance and texture to wood. It is possible to provide a composition for wood-plastic composite and a wood-plastic composite prepared using the composition.
또한, 본 발명의 다른 목적은 목재-플라스틱 복합재를 제조함에 있어 목분에 함유된 수분 함량을 철저히 관리하지 않으면서도 생산성과 성능이 우수한 목재-플라스틱 복합재를 제조할 수 있는 목재-플라스틱 복합재용 조성물 및 그 조성물을 사용하여 제조된 목재-플라스틱 복합재를 제공하기 위한 것이다.In addition, another object of the present invention is to prepare a wood-plastic composite composition for producing a wood-plastic composite having excellent productivity and performance without thorough management of the moisture content contained in the wood flour in the manufacture of wood-plastic composite and its To provide a wood-plastic composite produced using the composition.
상기 목적을 달성하기 위한 본 발명에 따른 목재-플라스틱 복합재용 조성물은 목분과 폴리올레핀 수지를 포함하는 원료를 배합하여 제조되는 목재-플라스틱 복합재용 조성물에 있어서, 상기 복합재용 조성물은 함수율 0.5%를 초과하는 목분, 폴리올레핀 수지, 알칼리토 금속의 나노 산화물, 상용화제, 윤활제 및 착색제를 포함하고, 상기 상용화제는 상기 복합재용 조성물 전체 중량에서 상기 목분에 함유된 수분을 제외한 중량의 0.3～0.5중량%를 사용하는 것을 특징으로 한다.Wood-plastic composite composition according to the present invention for achieving the above object is a wood-plastic composite composition prepared by mixing a raw material comprising wood powder and polyolefin resin, the composite composition is more than 0.5% water content Wood flour, polyolefin resin, nano-oxide of alkaline earth metal, compatibilizer, lubricant and colorant, the compatibilizer is used 0.3 ~ 0.5% by weight of the total weight of the composition for the composite except the moisture contained in the wood powder Characterized in that.
또한, 본 발명에 따른 목재-플라스틱 복합재용 조성물에 있어서, 상기 알칼 리토 금속의 나노 산화물은 알칼리토 금속 비누를 열분해하여 얻어지는 산화물인 것을 특징으로 한다.In addition, in the composition for wood-plastic composite according to the present invention, the nano oxide of the alkaline earth metal is characterized in that the oxide obtained by thermal decomposition of the alkaline earth metal soap.
또한, 본 발명에 따른 목재-플라스틱 복합재용 조성물에 있어서, 상기 복합재용 조성물은 목분 35～80중량%(함수율 0%인 건조기준), 폴리올레핀 수지 8.5～55중량%, 알칼리토 금속의 나노 산화물 2～5.5중량%, 상용화제 0.3～0.5중량%, 윤활제 1～3중량% 및 착색제 1.5～2.5중량%인 것을 특징으로 한다.In addition, in the composition for wood-plastic composite according to the present invention, the composition for the composite material is 35 to 80% by weight of wood powder (drying basis of 0% water content), polyolefin resin 8.5 to 55% by weight, alkaline earth metal nanooxide 2 It is characterized by the fact that it is -5.5 weight%, a compatibilizer 0.3-0.5 weight%, a lubricant 1-3 weight%, and a coloring agent 1.5-2.5 weight%.
또한, 본 발명에 따른 목재-플라스틱 복합재용 조성물에 있어서, 상기 목분, 폴리올레핀 수지 및 알칼리토 금속의 나노 산화물은 목분 40～75중량%(함수율 0%인 건조기준), 폴리올레핀 수지 13.5～50중량%, 알칼리토 금속의 나노 산화물 2～5.5중량%인 것을 특징으로 한다.In addition, in the composition for wood-plastic composite according to the present invention, the nano-oxides of the wood powder, the polyolefin resin and the alkaline earth metal are 40 to 75% by weight of wood powder (dry basis of water content of 0%), and 13.5 to 50% by weight of polyolefin resin. , Characterized in that 2 to 5.5% by weight of the nano-oxide of the alkaline earth metal.
또한, 본 발명에 따른 목재-플라스틱 복합재용 조성물에 있어서, 상기 목분, 폴리올레핀 수지 및 알칼리토 금속의 나노 산화물은 목분 50～65중량%(함수율 0%인 건조기준), 폴리올레핀 수지 24～40중량%, 알칼리토 금속의 나노 산화물 3～5중량%인 것을 특징으로 한다.In addition, in the composition for wood-plastic composite according to the present invention, the wood oxide, the polyolefin resin and the nano-oxides of the alkaline earth metal are 50 to 65% by weight of wood powder (dry basis with a water content of 0%), and 24 to 40% by weight of polyolefin resin. And 3 to 5% by weight of nano oxides of alkaline earth metals.
또한, 본 발명에 따른 목재-플라스틱 복합재용 조성물에 있어서, 상기 폴리올레핀 수지는 폴리프로필렌 수지 또는 폴리에틸렌 수지 또는 이들의 혼합물인 것을 특징으로 한다.In addition, in the composition for wood-plastic composite according to the present invention, the polyolefin resin is characterized in that the polypropylene resin or polyethylene resin or a mixture thereof.
또한, 본 발명에 따른 목재-플라스틱 복합재용 조성물에 있어서, 상기 조성물은 광안정제, 산화 방지제, 자외선 흡수제 중 어느 하나 또는 2이상이 첨가되는 것을 특징으로 한다.In addition, in the composition for wood-plastic composite according to the present invention, the composition is characterized in that any one or two or more of a light stabilizer, antioxidant, ultraviolet absorber is added.
또, 상기 목적을 달성하기 위한 본 발명에 따른 목재-플라스틱 복합재는 상기 목재-플라스틱 복합재용 조성물을 용융 혼련하여 펠렛을 제조한 후, 상기 펠렛을 압출 성형하여 제조된 것을 특징으로 한다.In addition, the wood-plastic composite material according to the present invention for achieving the above object is characterized by being manufactured by extrusion kneading the pellets by melting and kneading the composition for the wood-plastic composite material.
상술한 바와 같이, 본 발명에 따른 목재-플라스틱 복합재용 조성물 및 그 조성물을 사용하여 제조된 목재-플라스틱 복합재는 목분과 폴리올레핀 수지로부터 목재-플라스틱 복합재를 생산할 때 나노 입자의 알칼리토금속 산화물을 소량의 상용화재와 함께 첨가함으로써, 종래와 같이 목분의 수분 함량을 0.5% 이하로 철저하게 조절하지 않고 평형 함수율 8 %정도의 목분을 그대로 사용하여도 목분과 수지가 고르게 분산 및 밀착되어 충분한 강도의 목재-플라스틱 복합재를 생산할 수 있는 효과가 있다.As described above, the composition for wood-plastic composite according to the present invention and the wood-plastic composite prepared using the composition have a small amount of commercially available nanoparticle alkaline earth metal oxide when producing wood-plastic composite from wood flour and polyolefin resin. By adding it together with fire, wood flour and resin are evenly dispersed and adhered evenly even if the wood flour of 8% of equilibrium moisture content is used without adjusting the moisture content of wood flour to 0.5% or less as before. It has the effect of producing composites.
또한, 본 발명에 따른 목재-플라스틱 복합재용 조성물 및 그 조성물을 사용하여 제조된 목재-플라스틱 복합재는 목분과 수지의 분산과 밀착을 제어함으로써, 목분 함량을 높게 유지하게 하여 압출 성형 속도를 현저하게 향상시킬 수 있는 효과도 있다.In addition, the wood-plastic composite according to the present invention and the wood-plastic composite prepared using the composition control the dispersion and adhesion of wood flour and resin, thereby maintaining a high wood flour content to significantly improve the extrusion molding speed. There are also effects that can be made.
또한, 본 발명에 따른 목재-플라스틱 복합재용 조성물 및 그 조성물을 사용하여 제조된 목재-플라스틱 복합재는 목분과 폴리올레핀의 분산과 밀착을 증진시키는 고가의 상용화제의 사용량을 줄일 수 있고, 상용화제의 사용량을 줄임으로써, 목재-플라스틱 복합재의 품질을 높일 수 있는 효과도 있다.In addition, the composition for wood-plastic composites according to the present invention and the wood-plastic composite prepared using the composition can reduce the amount of expensive compatibilizers that promote the dispersion and adhesion of wood flour and polyolefin, and the amount of compatibilizers used. In addition, the quality of wood-plastic composites can be improved.
목재-플라스틱 복합재는 그 주성분인 폴리올레핀 수지와 목분이 고르고 균일하게 분산되면서 밀착되어야 기계적 강도가 충분히 발휘될 수 있고, 내수성과 내후성 등이 우수한 실용적인 성형품을 생산할 수 있다. 그러나 폴리올레핀과 목분 표면의 성질은 각각 소수성과 친수성이어서 서로 잘 섞이지 않으므로 무수말레산 함유 폴리올레핀 등의 상용화제를 사용하여 분산성과 밀착성을 높여 주어야 실용적인 목재-플라스틱 복합재를 생산할 수 있다.Wood-plastic composite material should be closely contacted with the polyolefin resin, the main component of the wood powder evenly and uniformly dispersed to be able to fully exhibit the mechanical strength, it is possible to produce a practical molded article excellent in water resistance and weather resistance. However, since the properties of polyolefin and wood flour are hydrophobic and hydrophilic, respectively, they do not mix well with each other. Therefore, a practical wood-plastic composite can be produced by increasing dispersibility and adhesion using a compatibilizer such as maleic anhydride-containing polyolefin.
그러나, 목분의 수분 함량이 높으면 상용화제에 의해 발휘되는 분산성과 밀착성이 떨어지므로 과량의 상용화제를 사용해야 한다.However, if the moisture content of wood flour is high, the dispersibility and adhesion exhibited by the compatibilizer are inferior, and an excessive compatibilizer must be used.
따라서, 본 발명자는 알칼리토금속 산화물이 목분의 수분과 반응하여 상용화제의 효과를 높여줄 것으로 예상되어 산화칼슘과 산화마그네슘 분말을 사용하여 여러 가지 조성을 시험하였지만 상용화제의 사용량을 현저하게 줄일 수 없었다.Therefore, the present inventors are expected to increase the effectiveness of the compatibilizer by reacting the alkaline earth metal oxide with the moisture of the wood powder, and tested the various compositions using calcium oxide and magnesium oxide powder, but the amount of the compatibilizer was not significantly reduced.
이들 산화금속의 반응성은 표면적에 비례할 것이므로 미세한 입자의 금속 산화물을 얻는 방법을 몇 가지 시도하여 알칼리토금속의 스테아린산염을 450℃에서 열분해하여 얻은 산화물의 입자가 나노 크기로 얻어짐을 알았다.Since the reactivity of these metal oxides will be proportional to the surface area, several attempts have been made to obtain fine particles of metal oxides, and it has been found that the particles of oxides obtained by pyrolysis of alkaline earth metal stearate at 450 ° C. are obtained in nano size.
따라서, 본 발명자는 이와 같이 얻어진 나노 크기의 산화물 입자 즉, 알칼리토 금속의 나노 산화물을 사용하여 시험한 조성물에서 상용화제의 사용량을 현저하게 줄이면서 목분의 함량을 높일 수 있고, 목분 함량을 높여도 충분한 강도와 낮은 흡수율을 갖는 목재-플라스틱 복합재를 제조할 수 있음을 밝혀냈다.Therefore, the present inventors can increase the content of wood powder while significantly reducing the amount of compatibilizer used in the composition tested using the nano-sized oxide particles thus obtained, that is, the nano-oxide of alkaline earth metal, It has been found that wood-plastic composites with sufficient strength and low water absorption can be produced.
이하에서는 본 발명에 따른 목재-플라스틱 복합재용 조성물의 제조와 목재- 플라스틱 복합재를 제조하는 방법에 대하여 실시예들을 통하여 상세히 설명한다.Hereinafter, the preparation of the composition for wood-plastic composite and the method for producing the wood-plastic composite according to the present invention will be described in detail with reference to examples.
이하의 실시예는 본 발명의 내용을 구체적으로 설명하기 위한 것일 뿐, 본 발명의 권리범위를 제한하는 것은 아니며, 본 발명의 상기 및 그 밖의 목적과 새로운 특징은 본 명세서의 실시예와 비교예 등에 기재된 내용에 의해 더욱 명확하게 될 것이다.The following examples are only intended to specifically describe the contents of the present invention, and are not intended to limit the scope of the present invention, the above and other objects and novel features of the present invention, such as examples and comparative examples of the present specification. The description will be made clearer.
본 발명에서 폴리올레핀이란 폴리프로필렌(PP)과 폴리에틸렌(HDPE, LDPE, LLDPE 등의 에틸렌 중합체) 및 이들의 공중합체나 이들 중합체의 혼합물을 일컫는다.In the present invention, polyolefin refers to polypropylene (PP) and polyethylene (ethylene polymers such as HDPE, LDPE, LLDPE), copolymers thereof, and mixtures of these polymers.
본 발명의 실시예와 비교예에서 사용한 목분(WF)은 독일 JRS사의 리그노셀 C120(100-메시, 수분 함량 8.0 %)을 사용하였고, 폴리프로필렌(PP)과 폴리에틸렌(PE)은 각각 호남석유화학의 SY130과 엘지화학의 BF511을 사용하였으며, 알칼리토 금속의 나노 산화물은 스테아린산 마그네슘을 450℃에서 열분해하여 나노입자 산화마그네슘(MO)을 제조하여 사용하였다.Wood powder (WF) used in the Examples and Comparative Examples of the present invention was used as lignocell C120 (100-mesh, moisture content 8.0%) of JRS, Germany, polypropylene (PP) and polyethylene (PE), respectively, Honam Petrochemical SY130 and LG Chem's BF511 were used, and nano-oxides of alkaline earth metals were prepared by pyrolyzing magnesium stearate at 450 ° C. to prepare nanoparticle magnesium oxide (MO).
그리고 상용화제(MAP)는 호남석유화학의 무수말레산 함유 폴리올레핀 BP-400이나 EM-510H를 사용하였고, 윤활제(LUB)는 스테아린산 칼슘을 사용하였으며, 착색제(PIG)는 유익사의 산화철 안료를 사용하였다.The compatibilizer (MAP) used Honam Petrochemical's polyolefin BP-400 or EM-510H containing maleic anhydride, the lubricant (LUB) used calcium stearate, and the colorant (PIG) used iron oxide pigments of beneficial companies. .
그리고 첨가제(ADD)로서 광안정제(Ciba Geigy, Chimassorb 944), 산화방지제(Ciba Geigy, Irganox 1010), 자외선흡수제(American Cynamid, Cyasorb UV531)를 2 : 2 : 1의 중량비로 조합하여 사용하였다.As an additive (ADD), a light stabilizer (Ciba Geigy, Chimassorb 944), an antioxidant (Ciba Geigy, Irganox 1010), and an ultraviolet absorber (American Cynamid, Cyasorb UV531) were used in combination at a weight ratio of 2: 2: 1.
상기에서 열거한 본 발명에 따른 목재-플라스틱 복합재용 조성물의 원료는 본 발명의 실시를 제한하는 것이 아니고, 이들 외에 일반적으로 사용되는 원료를 사용할 수도 있다.The raw materials of the composition for wood-plastic composites according to the present invention as listed above do not limit the practice of the present invention, and raw materials generally used in addition to these may be used.
본 발명의 실시예와 비교예에서 사용되는 목분, 수지 및 기타의 원료는 각각 자동 연속 칭량 장치를 사용하여 규정된 일정 속도로 직경 78-mm의 2-축 스크루 압출-혼련기에 공급하면서 용융 압출시켜서 압출되는 스트렌드를 절단하여 펠렛을 제조하였다.The wood flour, resin and other raw materials used in the examples and comparative examples of the present invention were melt extruded while feeding to a two-axis screw extrusion-kneader having a diameter of 78-mm at a predetermined speed using an automatic continuous weighing device, respectively. The extruded strand was cut to prepare pellets.
이들 펠렛은 직경 75-mm 단축 스크루 압출기에 도 1에 도시한 바와 같은 단면을 갖는 금형을 부착하여 데크재 프로파일(단위 중량은 1 미터당 약 2.5 kg)을 제조하였다.These pellets were attached to a 75-mm single screw extruder with a die having a cross section as shown in FIG. 1 to produce a deck material profile (unit weight about 2.5 kg per meter).
압출속도는 스크루 회전 속도를 점차 높여가면서 제조되는 프로파일의 외관을 관찰하여 표면이 매끈하면서 갈라지거나 겉면이 일어나거나 굴곡이 생기지 않고 휘어지지 않는 범위내의 최고 속도로 결정하였으며, 그 최고 속도에서 생산된 데크재 프로파일을 절단하여 굴곡 강도와 온수 침지(70℃, 72시간) 시험방법에 의해 침지흡수율을 측정하였다.The extrusion speed was determined by observing the appearance of the profile produced by gradually increasing the screw rotation speed, and determined as the maximum speed within the range where the surface was smooth, cracked, surfaced, bent, and not bent. The ash profile was cut and immersion absorption was measured by flexural strength and hot water immersion (70 ° C., 72 hours) test method.
[실시예 1～9][Examples 1-9]
목분 함량을 조성물 전 중량의 35중량%에서 80중량%(함수율 0%인 건조기준)까지 증가시키면서 혼합한 목재-플라스틱 복합재용 조성물을 78-㎜ 2-축 스크루 압출-혼련기로 목분의 열화온도인 180℃미만에서 용융 혼련하여 펠렛을 제조하였다.The wood-plastic composite composition was mixed while increasing the wood flour content from 35% to 80% by weight of the total weight of the composition (0% water content on a dry basis) using a 78-mm 2-axis screw extrusion-kneader. Pellets were prepared by melt kneading at less than 180 ° C.
실제 목분의 투입량은 수분 함량이 8.0 %이므로 건조 목분 함량의 108%를 칭량하였으며, 이들 목재-플라스틱 복합재용 조성물의 조성비는 표 1에서 보는 바와 같다.Since the actual amount of wood powder is 8.0% of moisture content, 108% of the dry wood powder content is weighed, and the composition ratio of these wood-plastic composite compositions is shown in Table 1.
이들 조성물 펠렛을 75-mm 단축 스크루 압출기의 스크루 회전 속도를 서서히 증가시키면서 목재-플라스틱 복합재의 외관에 이상이 없는 범위에서 압출 성형의 최고 속도를 결정하여 도 1에서 보는 바와 같은 폭 145㎜, 두께 25㎜의 데크재를 170℃이하에서 압출 성형하였다.These composition pellets were determined by maximally increasing the speed of extrusion of the 75-mm single screw extruder while determining the maximum speed of the extrusion in the range of the appearance of the wood-plastic composite, as shown in FIG. The deck material of mm was extruded at 170 degrees C or less.
표 1은 본 발명에 따른 목재-플라스틱(폴리프로필렌 수지) 복합재용 조성물의 각 실시예별 조성표이다.Table 1 is a composition table for each embodiment of the composition for wood-plastic (polypropylene resin) composite according to the present invention.
[표 1] (단위 : 중량%)[Table 1] (Unit: weight%)
PP
PP
MO
MO
MAP
MAP
LUB
LUB
PIG
PIG
ADD
ADD
합계
Sum
(8%)** function
(8%) **
주) PP : 폴리프로필렌 수지, WF : 목분(건조* : 건조목분, 함수(8%)** : 함수율 8%의 목분), MO : 산화마그네슘, MAP : 상용화제, LUB : 윤활제, PIG : 착색제, ADD : 첨가제(광안정제, 산화 방지제, 자외선 흡수제)PP) Polypropylene resin, WF: Wood powder (dry * : Dry wood powder, water (8%) ** : Wood powder with water content of 8%), MO: Magnesium oxide, MAP: Compatibilizer, LUB: Lubricant, PIG: Colorant , ADD: additive (light stabilizer, antioxidant, ultraviolet absorber)
폴리프로필렌 수지를 사용한 본 발명에 따른 목재-플라스틱 복합재용 조성물로 제조된 복합재는 그 제조한 프로파일의 굴곡 강도를 측정하고, 70℃의 온수에 72시간동안 침지하여 흡수율을 측정하였다.Composites prepared from the composition for wood-plastic composites according to the present invention using polypropylene resin were measured for the bending strength of the prepared profile, and immersed in hot water at 70 ° C. for 72 hours to measure the water absorption.
표 2는 본 발명에 따른 목재-플라스틱(폴리프로필렌 수지) 복합재용 조성물 의 각 실시예별 특성표이다.Table 2 is a characteristic table for each embodiment of the composition for wood-plastic (polypropylene resin) composite according to the present invention.
[표 2][Table 2]
(중량%)PP
(weight%)
(중량%)WF (dry * )
(weight%)
(m/h)Extrusion speed
(m / h)
(MPa)Flexural strength
(MPa)
(%)Immersion Absorption Rate
(%)
목분의 함량이 35중량%미만인 경우에는 목재와 같은 질감을 얻을 수 없으므로 실험하지 않았으며, 목재와 같은 질감을 갖는 목분의 함량이 35중량%이상인 경우에 대하여 실험하였다.When the content of wood flour was less than 35% by weight, the wood-like texture could not be obtained, and thus the experiment was not performed. The content of wood flour having the same texture as wood was more than 35% by weight.
표 2에서 보는 바와 같이 목분의 함량이 40중량%에서부터 50중량% 내지 80중량%까지 높아지면서 압출속도가 40중량%에 비하여 약 50～350%정도까지 향상되어 목분의 함량이 많아지면서 압출속도도 커짐을 알 수 있다. 즉, 생산속도의 면에서는 목분의 함량을 높이는 것이 유리하지만 목분의 함량이 70중량%이상으로 되면 굴곡강도가 떨어지면서 침지흡수율도 크게 늘어난다.As shown in Table 2, the content of wood flour increased from 40% by weight to 50% by weight to 80% by weight, and the extrusion speed increased by about 50-350% compared to 40% by weight, resulting in an increase in the content of wood flour and the extrusion rate. It can be seen that the larger. In other words, in terms of production speed, it is advantageous to increase the content of wood flour, but when the content of wood powder is 70% by weight or more, the bending strength decreases and the immersion absorption rate is greatly increased.
따라서, 실용적인 목분 함량의 범위는 40～75중량%가 바람직하고, 더욱 유리한 범위는 50～65중량%가 더욱 바람직하다.Therefore, the practical wood flour content is preferably 40 to 75% by weight, more preferably 50 to 65% by weight.
즉, 알칼리토 금속의 나노 산화물을 사용하여 제조하는 목재-폴리프로필렌 복합재의 최적 목분 함량은 50～65중량%이고, 이때의 압출속도는 33.6～61.3 m/시 간, 굴곡강도는 22.3～25.2 MPa, 침지흡수율은 2.1～2.7 %의 특성을 갖는다.That is, the optimum wood flour content of the wood-polypropylene composite prepared using the nano-oxide of alkaline earth metal is 50 to 65% by weight, and the extrusion speed is 33.6 to 63.3 m / hour, and the bending strength is 22.3 to 25.2 MPa. The immersion absorption rate is 2.1∼2.7%.
[비교예 1～2][Comparative Example 1 ~ 2]
비교예 1～2는 본 발명에서 사용한 알칼리토 금속의 나노 산화물을 사용하지 않고 통상의 상용화제인 무수말레산 함유 폴리프로필렌만 사용하는 경우에 목분의 수분 함량에 따른 영향을 검토하기 위하여 평형 수분 함량 8%의 목분과 철저히 건조한 건조 목분 (0.5%)을 사용하여 목분 함량 40중량%의 목재-플라스틱 복합재용 조성물을 표 3과 같이 조성하여 상기 실시예와 동일한 방법으로 압출 제조하였다.Comparative Examples 1 to 2 are equilibrium moisture contents 8 to examine the effect of moisture content of wood flour when only the normal compatibilizer maleic anhydride-containing polypropylene is used without using the nano-oxide of alkaline earth metal used in the present invention. The wood-plastic composite composition having a wood flour content of 40% by weight using% wood flour and dry dry wood flour (0.5%) was prepared as shown in Table 3 and extruded in the same manner as in Example.
표 3은 비교예에 의한 목재-플라스틱 복합재용 조성물의 비교예별 조성표이다.Table 3 is a composition table for each comparative example of the composition for wood-plastic composites according to the comparative example.
[표 3] (단위 : 중량%)[Table 3] (Unit: weight%)
PP
PP
MAP
MAP
LUB
LUB
PIG
PIG
ADD
ADD
합계
Sum
표 4는 비교예에 따른 목재-플라스틱 복합재용 조성물의 각 비교예별 특성표이다.Table 4 is a characteristic table for each comparative example of the composition for wood-plastic composite according to the comparative example.
[표 4][Table 4]
(%)PP
(%)
(%)WF (dry * )
(%)
(m/h)Extrusion speed
(m / h)
(MPa)Flexural strength
(MPa)
(%)Immersion Absorption Rate
(%)
표 4에서 보는 바와 같이 건조 목분으로 복합재를 제조할 때에는 상용화제를 0.5 %만 사용하여도 압출속도 19.1m/시간이 얻어지는데 8%의 평형수분을 함유하는 목분의 경우에는 상용화제를 3 %정도 사용하여야 비슷한 속도로 압출할 수 있음을 알 수 있다. 이들 상용화제만 사용한 경우 침지흡수율에서는 실시예의 경우와 거의 비슷하지만, 굴곡강도는 약간 떨어지는 것을 알 수 있다. 이는 본 발명의 실시예에서 금속 산화물이 목분과 올레핀 수지의 분산과 밀착에 큰 도움이 된다는 것을 알 수 있게 한다.As shown in Table 4, when manufacturing the composite from dry wood powder, an extrusion rate of 19.1 m / hour is obtained even with 0.5% of a compatibilizer. For wood flour containing 8% of equilibrium water, about 3% of a compatibilizer is used. It can be seen that it can be extruded at a similar speed by using. When only these compatibilizers were used, the immersion absorption rate was almost similar to that of the example, but the flexural strength was slightly decreased. This can be seen that the metal oxide in the embodiment of the present invention is a great help in the dispersion and adhesion of wood flour and olefin resin.
[실시예 10～13][Examples 10-13]
실시예 10～13은 실시예 1～9에서 사용한 폴리프로필렌 수지 대신에 폴리에틸렌(PE) 수지를 사용한 것으로서, 표 5와 같이 플라스틱 복합재용 조성물을 조성하여 상기 실시예 1～9와 동일한 방법으로 압출 제조하였다.Examples 10 to 13 used polyethylene (PE) resins instead of the polypropylene resins used in Examples 1 to 9, and prepared compositions for plastic composites as shown in Table 5, and prepared by extrusion in the same manner as in Examples 1 to 9. It was.
표 5는 본 발명에 따른 목재-플라스틱(폴리에틸렌 수지) 복합재용 조성물의 각 실시예별 조성표이다.Table 5 is a composition table for each embodiment of the composition for wood-plastic (polyethylene resin) composite according to the present invention.
[표 5] (단위 : 중량%)[Table 5] (Unit: weight%)
PE
PE
MO
MO
MAP
MAP
LUB
LUB
PIG
PIG
ADD
ADD
합계
Sum
주) PE : 폴리에틸렌 수지Note) PE: polyethylene resin
표 6은 본 발명에 따른 목재-플라스틱(폴리에틸렌 수지) 복합재용 조성물의 각 실시예별 특성표이다.Table 6 is a characteristic table for each embodiment of the composition for wood-plastic (polyethylene resin) composite according to the present invention.
[표 6]TABLE 6
(중량%)PE
(weight%)
(중량%)WF (dry * )
(weight%)
(m/h)Extrusion speed
(m / h)
(MPa)Flexural strength
(MPa)
(%)Immersion Absorption Rate
(%)
실시예 10～13에서도 실시예 1～9(폴리프로필렌 수지를 사용한 경우)와 같이 목분의 함량이 많아질수록 압출속도가 커지고, 목분 65중량%까지는 굴곡강도가 커졌다가 줄어들고, 침지흡수율이 계속 늘어나는 경향은 같았으며, 최적 목분 배합율은 55～65중량%이었다.In Examples 10 to 13, as in Examples 1 to 9 (when using a polypropylene resin), as the content of wood powder increased, the extrusion speed increased, the flexural strength increased and decreased until 65% by weight of wood powder, and the immersion absorption rate continued to increase. The trend was the same, and the optimum wood compounding ratio was 55 to 65% by weight.
도 2는 본 발명에 따른 조성물을 사용하여 제조된 목재-플라스틱 복합재의 사진으로서, 질감이 목재와 유사하며, 색감도 목재와 유사한 모습을 보여주고 있다.Figure 2 is a photograph of a wood-plastic composite prepared using the composition according to the present invention, the texture is similar to wood, showing a color-like appearance similar to wood.
본 발명에 의하면 목재-플라스틱 복합재를 저렴한 원료를 사용하여 목분의 수분을 철저하게 관리하지 않고도 강도가 우수하고 흡수율이 낮으며, 천연 목재와 흡사한 외관과 질감을 갖는 목재-플라스틱 복합재의 성형품을 고속으로 생산할 수 있으므로 목재-플라스틱 복합재의 보급 신장에 도움이 될 것이며, 자원 재활용을 촉진하여 친환경 산업의 발전에 기여할 것이다.According to the present invention, the wood-plastic composite material is made of inexpensive raw materials without having to thoroughly manage the moisture of wood powder. It will help to increase the dissemination of wood-plastic composites, and will contribute to the development of green industry by promoting the recycling of resources.
도 1은 본 발명의 실시예 및 비교예에 따른 목재-플라스틱 복합재의 프로파일을 보이는 도면1 is a view showing a profile of a wood-plastic composite according to an embodiment and comparative example of the present invention
도 2는 본 발명에 따른 조성물을 사용하여 제조된 목재-플라스틱 복합재의 사진2 is a photograph of a wood-plastic composite prepared using the composition according to the invention.
Claims (8)
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| KR1020090036266A Division KR100932173B1 (en) | 2009-04-25 | 2009-04-25 | Wood plastic composite compositions and profiles |
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Cited By (3)
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|---|---|---|---|---|
| KR102276413B1 (en) | 2020-12-22 | 2021-07-12 | 주식회사 에디스플레이 | Resin composition for mobile display device bracket comprising carbon fiber composite resin and mobile display for mobile using the same |
| KR102311364B1 (en) | 2020-12-22 | 2021-10-13 | 주식회사 에디스플레이 | Wood plastic compound comprising carbon fiber composite resin |
| KR20220090386A (en) | 2020-12-22 | 2022-06-29 | 주식회사 에디스플레이 | Carbon fiber composite resin composition and carbon fiber composite resin and cfrp prepreg and cfrp using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101629536B1 (en) | 2012-09-06 | 2016-06-10 | (주)엘지하우시스 | Pallet and rack using wood polymer/plastic composite |
| KR101283502B1 (en) * | 2013-01-14 | 2013-08-19 | (주)애니우드 | Composition for synthetic woods and its manufacturing methods |
| KR101388767B1 (en) * | 2013-02-20 | 2014-04-25 | 주식회사 티에버 | Wood plastic composite and Manufacturing method which have cooling step by sequentially adding of wood fiber |
| KR101428935B1 (en) * | 2013-07-25 | 2014-08-08 | 롯데케미칼 주식회사 | Blend of wood plastic composite and windows made from thereof |
| KR102660035B1 (en) * | 2024-02-15 | 2024-04-24 | 김성식 | Synthetic wood composition capable of improving weather resistance and physical properties and synthetic wood deck using the composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100301394B1 (en) * | 1998-12-21 | 2001-10-29 | 성재갑 | Surface-treated wood flour with physical reinforcing agent and vinyl chloride resin composition for the manufacture of synthetic wood with added wood flour |
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- 2009-11-17 KR KR1020090110873A patent/KR101175308B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100301394B1 (en) * | 1998-12-21 | 2001-10-29 | 성재갑 | Surface-treated wood flour with physical reinforcing agent and vinyl chloride resin composition for the manufacture of synthetic wood with added wood flour |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102276413B1 (en) | 2020-12-22 | 2021-07-12 | 주식회사 에디스플레이 | Resin composition for mobile display device bracket comprising carbon fiber composite resin and mobile display for mobile using the same |
| KR102311364B1 (en) | 2020-12-22 | 2021-10-13 | 주식회사 에디스플레이 | Wood plastic compound comprising carbon fiber composite resin |
| KR20220090386A (en) | 2020-12-22 | 2022-06-29 | 주식회사 에디스플레이 | Carbon fiber composite resin composition and carbon fiber composite resin and cfrp prepreg and cfrp using the same |
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| KR20100117493A (en) | 2010-11-03 |
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