KR100894998B1 - A slate using recycled plastics - Google Patents
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- KR100894998B1 KR100894998B1 KR1020070046713A KR20070046713A KR100894998B1 KR 100894998 B1 KR100894998 B1 KR 100894998B1 KR 1020070046713 A KR1020070046713 A KR 1020070046713A KR 20070046713 A KR20070046713 A KR 20070046713A KR 100894998 B1 KR100894998 B1 KR 100894998B1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
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- 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
- C08K3/02—Elements
- C08K3/04—Carbon
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
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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
- 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
- C08L23/286—Chlorinated polyethylene
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
- E04D1/02—Grooved or vaulted roofing elements
- E04D1/08—Grooved or vaulted roofing elements of plastics; of asphalt; of fibrous materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2223/00—Use of polyalkenes or derivatives thereof as reinforcement
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/30—Polymeric waste or recycled polymer
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2423/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
Abstract
본 발명은 재생 플라스틱을 이용하여 제조되는 건축자재인 스레트에 관한 것으로, 더욱 상세하게는 폐 플라스틱에, 분자식이 (CH3)3CC6H3(OCH3)OH, 녹는점(m.p) 58 ~ 60℃인 부틸히드록시아니솔(2,3-tert-butyl-4-methoxyphenol:BHA), 분자식이 C15H24O, 녹는점(m.p) 69 ~ 70℃인 2,6-Di-tert-butyl-4-methylphenol, 분자식이 C10H14O2, 녹는점(m.p) 125℃인 tert-butylhydroquinone, 녹는점(m.p) 35 ~ 38℃인 2,6-di-tert-butylphenol 중 선택되는 어느 1종 또는 2종 이상의 혼합으로 조성되는 안정제, 착색제, 보강제, 자외선흡수제를 첨가하여 조성된 혼합물을 용융하고, 일정온도를 유지하는 금형을 통과시켜 사출성형하여 제조되는 재생플라스틱을 이용한 스레트에 관한 것이다.The present invention relates to a thread that is a building material manufactured using recycled plastics, and more particularly, to waste plastics, molecular formula (CH 3 ) 3 CC 6 H 3 (OCH 3 ) OH, melting point (mp) 58 ~ Butylhydroxyanisole (2,3-tert-butyl-4-methoxyphenol: BHA) at 60 ° C, molecular formula C 15 H 24 O, melting point (mp) 2,6-Di-tert- at 69-70 ° C butyl-4-methylphenol, molecular formula C 10 H 14 O 2 , tert-butylhydroquinone with melting point (mp) 125 ℃, 2,6-di-tert-butylphenol with melting point (mp) 35 ~ 38 ℃ The present invention relates to a thread using a recycled plastic produced by melting a mixture formed by adding a stabilizer, a colorant, a reinforcing agent, and an ultraviolet absorber formed by one or two or more kinds of mixtures, and then injection molding the mold by maintaining a constant temperature. .
재생, 플라스틱, 건축자재, 스레트, 경량, 강도, 폴리프로필렌, 폴리에틸렌 Recycled, Plastic, Construction Materials, Thread, Lightweight, Strength, Polypropylene, Polyethylene
Description
도 1은 본 발명에 따른 재생플라스틱을 이용한 스레트를 나타낸 사시도.1 is a perspective view showing a thread using a recycled plastic according to the present invention.
도 2는 본 발명에 따른 재생플라스틱을 이용한 스레트를 나타낸 단면도.2 is a cross-sectional view showing a thread using a recycled plastic according to the present invention.
* 도면의 주요 부분에 대한 부호 설명 *Explanation of symbols on the main parts of the drawings
1 : 스레트1: thread
본 발명은 재생 플라스틱을 이용하여 제조되는 건축자재인 스레트에 관한 것으로, 더욱 상세하게는 폐 플라스틱에, 분자식이 (CH3)3CC6H3(OCH3)OH, 녹는점(m.p) 58 ~ 60℃인 부틸히드록시아니솔(2,3-tert-butyl-4-methoxyphenol:BHA), 분자식이 C15H24O, 녹는점(m.p) 69 ~ 70℃인 2,6-Di-tert-butyl-4-methylphenol, 분자식이 C10H14O2, 녹는점(m.p) 125℃인 tert-butylhydroquinone, 녹는점(m.p) 35 ~ 38℃인 2,6-di-tert-butylphenol 중 선택되는 어느 1종 또는 2종 이상의 혼합으로 조성되는 안정제, 착색제, 보강제, 자외선흡수제를 첨가하여 조성된 혼합물을 용융하고, 일정온도를 유지하는 금형을 통과시켜 사출성형하여 제조되는 재생플라스틱을 이용 한 스레트에 관한 것이다.The present invention relates to a thread that is a building material manufactured using recycled plastics, and more particularly, to waste plastics, molecular formula (CH 3 ) 3 CC 6 H 3 (OCH 3 ) OH, melting point (mp) 58 ~ Butylhydroxyanisole (2,3-tert-butyl-4-methoxyphenol: BHA) at 60 ° C, molecular formula C 15 H 24 O, melting point (mp) 2,6-Di-tert- at 69-70 ° C butyl-4-methylphenol, molecular formula C 10 H 14 O 2 , tert-butylhydroquinone with melting point (mp) 125 ℃, 2,6-di-tert-butylphenol with melting point (mp) 35 ~ 38 ℃ Regarding a thread using a recycled plastic produced by melting a mixture formed by adding a stabilizer, a colorant, a reinforcing agent, and an ultraviolet absorbent formed by one or two or more kinds of mixtures, and then injection molding through a mold maintaining a constant temperature. will be.
생활수준이 향상되고 국민소득이 높아짐에 따라 발생하는 폐기물이 급증하고 있으며, 그에 따른 환경오염이 매우 심각해지고 있는 실정이다.As the standard of living is improved and the national income is increasing, the waste generated is increasing rapidly, and the environmental pollution is becoming very serious.
상기 폐기물 중 폐 플라스틱은 다른 금속, 지류, 목재 등의 폐품과는 달리 현재 적절한 후처리 기술, 공정 시설 등의 미비하고, 또한 이러한 폐 플라스틱을 효과적으로 재활용하기 위한 처리기술과 적절한 수거가 잘 이루어지지 않는 문제를 갖고 있었다.Unlike other wastes such as metals, papers, and wood, the waste plastics are currently inadequate aftertreatment technologies and processing facilities, and the waste plastics are not properly collected and treated properly for recycling such waste plastics. I had a problem.
이와 같은 폐 플라스틱의 재활용은 재생플라스틱 형태, 즉 재질로서의 재활용이 가장 좋은 방안이다. 이에 본 발명자는 재생플라스틱을 이용하여 종래 지붕에 사용던 스레트를 재생플라스틱으로 제조하는 것에 착안하게 되었으며, 그 스레트가 건축자재로써 경량하면서 강도면에서도 뛰어나 종래 무겁고 잘 깨지던 스레트를 대체할 수 있어, 폐 플라스틱을 재활용하여 환경개선과 자원재활용 측면에서 경제적이며, 또한 종래 스레트의 단점을 보완할 수 있는 재생플라스틱을 이용한 스레트를 개발하게 되었다.Such recycling of waste plastics is the best way to recycle them as recycled plastics. Therefore, the present inventors came to pay attention to the production of the recycled plastics using the recycled plastics from the roof, and it is possible to replace the heavy and cracked slats, which are excellent in terms of strength and lightness as construction materials. By recycling the waste plastic, it is economical in terms of environmental improvement and resource recycling, and it has been developed a thread using recycled plastic that can compensate for the disadvantages of the conventional thread.
상기한 바와 같이, 본 발명은 폐기물로 처리되는 폐 플라스틱을 재생함으로써 친환경적이고, 경량하면서도 강도가 강하여 경제성과 작업 효율성을 높일 수 있는 재생플라스틱을 이용한 스레트 제공을 그 목적으로 한다.As described above, an object of the present invention is to provide a thread using recycled plastics that can be eco-friendly, light weight, and strong, thereby improving economic efficiency and work efficiency by regenerating waste plastic to be treated as waste.
상기와 같은 목적을 달성하기 위해,In order to achieve the above object,
본 발명은 폐 플라스틱(A) 83.5 ~ 93.5중량%에,The present invention in the waste plastic (A) 83.5 ~ 93.5% by weight,
분자식이 (CH3)3CC6H3(OCH3)OH, 녹는점(m.p) 58 ~ 60℃인 부틸히드록시아니솔(2,3-tert-butyl-4-methoxyphenol:BHA), 분자식이 C15H24O, 녹는점(m.p) 69 ~ 70℃인 2,6-Di-tert-butyl-4-methylphenol, 분자식이 C10H14O2, 녹는점(m.p) 125℃인 tert-butylhydroquinone, 녹는점(m.p) 35 ~ 38℃인 2,6-di-tert-butylphenol 중 선택되는 어느 1종 또는 2종 이상의 혼합으로 조성되는 안정제(B) 0.5 ~ 1.5중량%,Molecular formula (CH 3 ) 3 CC 6 H 3 (OCH 3 ) OH, butylhydroxyanisole (2,3-tert-butyl-4-methoxyphenol: BHA), melting point (mp) 58-60 ° C., molecular formula C 15 H 24 O, 2,6-Di-tert-butyl-4-methylphenol with melting point (mp) 69-70 ° C, molecular formula C 10 H 14 O 2 , tert-butylhydroquinone with melting point (mp) 125 ° C , Melting point (mp) 35 ~ 38 ℃ 2,6-di-tert-butylphenol of any one or two or more selected from the mixture selected from (B) 0.5 to 1.5% by weight,
착색제(C)인 카본블랙(Carbon black) 2 ~ 5중량%,2 to 5% by weight of carbon black as a colorant (C),
보강제(D)인 염소화폴리에틸렌(Chlorinated polyethylene:CPE) 2 ~ 5중량%, Chlorinated polyethylene (CPE) 2 ~ 5% by weight of the reinforcing agent (D),
자외선흡수제(E)인 벤조페논(Benzophenone) 2 ~ 5중량%가 첨가되어 조성된 혼합물을 150 ~ 230℃로 가열하여, 50 ~ 85℃를 유지하는 금형을 통과시켜 사출성형하여 제조하는 재생플라스틱을 이용한 스레트를 그 주요 기술적 구성으로 한다.Regenerated plastic produced by injection molding by heating a mixture prepared by adding 2-5% by weight of benzophenone (E), which is a UV absorber (E), to 150-230 ° C, and then passing it through a mold maintaining 50-85 ° C. Let the used thread be its main technical configuration.
상기 폐 플라스틱은 SiO2 촉매를 이용하여 폴리에틸렌(Polyethylene:PE), 폴리카보네이트(Polycarbonate:PC), 폴리프로필렌(Polypropylene:PP), 폴리염화비닐(Polyvinyl chloride:PVC), 폴리스티렌(Styrene resin:PS), 폴리에틸렌 테레프탈레이트(Polyethylene terephthalate:PET) 중 선택되는 어느 1종 또는 2종 이상의 혼합 폐플라스틱을 350 ~ 400℃에서 분해한 것을 사용하고, 상기 카본블랙(Carbon black)은 무정형카본입자로 폭 10 ~ 30Å, 두께 10 ~ 20Å인 미결정 집합체인 것을 특징으로 한다.The waste plastic is polyethylene (PE), polycarbonate (PC), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (Styrene resin: PS) using a SiO 2 catalyst , Any one or two or more kinds of mixed waste plastics selected from polyethylene terephthalate (PET) are decomposed at 350 to 400 ° C, and the carbon black is amorphous carbon particles having a width of 10 to It is a microcrystal aggregate of 30 microseconds and thickness 10-20 micrometers.
이하, 상기한 기술적 구성을 더욱 상세히 살펴보도록 한다.Hereinafter, the technical configuration will be described in more detail.
폐 플라스틱의 자원화방법은 폐 플라스틱을 단순히 세척 후 다시 사용하는 단순 재생법과 폐 플라스틱을 단순 세척하여 사용할 수 없는 경우에는 재생원료로 사용하는 방법이 있으며, 그 재생 원료로 사용되는 폐 플라스틱에는 농업용 염화비닐, 농업용 폴리에틸렌, 필름, 콘테이너, 플라스틱 병, 전선폐재, 발포폼 등이 있다.There are two methods for recycling waste plastics: simple recycling of waste plastics and reuse, and recycling of waste plastics as a raw material.If waste plastics are used as recycled raw materials, vinyl chloride for agriculture is used. , Agricultural polyethylene, films, containers, plastic bottles, wire shields, foams, and the like.
본 발명에서 사용되는 폐 플라스틱은 그 대상을 한정하는 것은 아니나, 구체적인 설명을 위해 그 성분을 한정하자면 폴리에틸렌(Polyethylene:PE), 폴리카보네이트(Polycarbonate:PC), 폴리프로필렌(Polypropylene:PP), 폴리염화비닐(Polyvinyl chloride:PVC), 폴리스티렌(Styrene resin:PS), 폴리에틸렌 테레프탈레이트(Polyethylene terephthalate:PET) 중 선택되는 어느 1종 또는 2종 이상의 혼합 폐플라스틱을 사용한다.Waste plastics used in the present invention is not limited to the object, but for the purpose of specific description, polyethylene (PE), polycarbonate (PC), polypropylene (PP), polychloride One or two or more mixed waste plastics selected from vinyl (Polyvinyl chloride: PVC), polystyrene (Styrene resin: PS), and polyethylene terephthalate (PET) are used.
상기 폐 플라스틱은 SiO2 촉매를 이용하여 350 ~ 400℃에서 분해하여 사용하는 것으로, 전체 성분비에 대해 83.5 ~ 93.5중량%의 범위로 사용한다.The waste plastic is used to decompose at 350 ~ 400 ℃ using SiO 2 catalyst, it is used in the range of 83.5 ~ 93.5% by weight relative to the total component ratio.
상기 분해온도가 350℃ 미만인 경우에는 분해가 잘 이루어지지 않거나, 그 분해시간이 장시간 요구되는 문제가 발생하고, 400℃를 초과하게 되는 경우에는 다이옥신 등의 유해성분이 발생할 가능성이 있으므로, 상기 폐 플라스틱 분해시 온도는 350 ~ 400℃를 유지하는 것이 바람직하다.If the decomposition temperature is less than 350 ° C, decomposition does not occur well, or if the decomposition time is a problem that requires a long time, and if it exceeds 400 ° C, harmful components such as dioxins may occur, so the waste plastic decomposition It is preferable to maintain the 350 ° C to 400 ° C temperature.
상기 폐 플라스틱을 83.5중량% 미만으로 사용할 경우에는 성형성이 떨어져 스레트의 형상이 잘 이루어지지 않는 문제가 발생하고, 93.5중량%를 초과하여 사용하게 될 경우에는 역시 사출성형이 원활히 이루어지지 않고, 내구성 등이 떨어지므로, 상기 폐 플라스틱은 스레트를 제조하기 위한 전체 조성물에 대해 83.5 ~ 93.5중량%의 범위로 사용하는 것이 바람직하다.When the waste plastic is used at less than 83.5% by weight, there is a problem in that the shape of the thread is poorly formed due to poor moldability, and when it is used in excess of 93.5% by weight, injection molding is not smoothly performed, and durability As such, the waste plastic is preferably used in the range of 83.5 to 93.5% by weight based on the total composition for producing the thread.
상기와 같은 비율로 사용되는 폐 플라스틱을 그대로 사용할 경우에는 내구성, 자외선 차단성 등이 떨어지므로, 상기 폐 플라스틱에 안정제, 착색제, 보강제, 자외선흡수제를 첨가하게 되며,When the waste plastic used at the above ratio is used as it is, durability, UV blocking property, etc. are deteriorated, so that stabilizers, colorants, reinforcing agents, and ultraviolet absorbers are added to the waste plastic.
그 첨가물의 성격을 간략히 살펴보면, 먼저 안정제는 플라스틱이 열이나 자외선에 의해 분해되지 않게 하기 위해 첨가하는 것이고, 상기 착색제는 플라스틱 제품의 색깔을 아름답게 하여 상품의 가치를 높이기 위해 첨가하는 것이며, 상기 보강제는 플라스틱의 강도를 높여 내구성을 높여주는 것이며, 상기 자외선흡수제는 플라스틱 성형품의 경우 자외선에 의한 광열화 작용으로 분해되어지므로 이를 막기 위해 첨가하는 것이다.A brief look at the nature of the additives, first stabilizers are added to prevent the plastic from being degraded by heat or ultraviolet rays, the coloring agent is added to increase the value of the product to beautify the color of the plastic product, the reinforcing agent It is to increase the strength of the plastic to increase the durability, the UV absorbing agent is added to prevent the plastic molded article is decomposed by the photodegradation action by ultraviolet light.
상기 안정제는 플라스틱의 경우 자외선 영역에 있는 태양 빛으로부터 파괴되 므로 보호되어야 하므로, 첨가해주는 자외선을 흡수하는 유기물로써 중량비율로 0.5 ~ 1.5%를 폐 플라스틱에 첨가하면 된다.Since the stabilizer is to be protected from the sun light in the ultraviolet region of the plastic, it should be protected, so that the organic material absorbing the ultraviolet rays to be added, 0.5 to 1.5% by weight to the waste plastic.
상기 안정제가 0.5중량% 미만으로 사용될 경우에는 자외선으로부터 플라스틱이 분해되는 현상을 방지하는 기능이 떨어지고, 1.5중량%를 초과하여 사용하게 되는 경우에는 플라스틱 제품의 내구성이 떨어질 수 있으므로, 상기 안정제는 슬레트를 제조하기 위한 전체 조성물에 대해 0.5 ~ 1.5중량%의 범위로 사용하는 것이 바람직하다.When the stabilizer is used in less than 0.5% by weight, the ability to prevent the decomposition of the plastic from ultraviolet light is reduced, and when used in excess of 1.5% by weight may reduce the durability of the plastic product, the stabilizer is It is preferable to use it in the range of 0.5 to 1.5 weight% with respect to the whole composition for manufacture.
상기 안정제는 부틸히드록시아니솔(BHA), 부틸히드록시툴루엔(BHT) 군에서 선택되는 어느 1종 또는 2종 이상의 혼합물을 사용한다.The stabilizer uses any one or a mixture of two or more selected from the group consisting of butylhydroxyanisole (BHA) and butylhydroxytoluene (BHT).
상기 부틸히드록시아니솔(BHA)는 분자식이 (CH3)3CC6H3(OCH3)OH, 녹는점(m.p) 58 ~ 60℃인 2,3-tert-butyl-4-methoxyphenol이고,The butylhydroxyanisole (BHA) is 2,3-tert-butyl-4-methoxyphenol having a molecular formula of (CH 3 ) 3 CC 6 H 3 (OCH 3 ) OH, melting point (mp) 58 ~ 60 ℃,
상기 부틸히드록시툴루엔(BHT)는 분자식이 C15H24O, 녹는점(m.p) 69 ~ 70℃인 2,6-Di-tert-butyl-4-methylphenol, 분자식이 C10H14O2, 녹는점(m.p) 125℃인 tert-butylhydroquinone, 녹는점(m.p) 35 ~ 38℃인 2,6-di-tert-butylphenol이다.The butyl hydroxy toluene (BHT) is a molecular formula of C 15 H 24 O, melting point (mp) 69 ~ 70 ℃ 2,6-Di-tert-butyl-4-methylphenol, molecular formula C 10 H 14 O 2 , Melting point (mp) 125 ° C tert-butylhydroquinone, melting point (mp) 35-38 ° C 2,6-di-tert-butylphenol.
상기 착색제로 사용되는 카본블랙(Carbon black)은 가시광선파장 정도의 극히 미세한 크기를 가진 입자로서 주성분은 탄소이며, 그 용도로는 플라스틱에 착색과 내후성 향상 및 도전성 부여를 위해 사용되고 일반 안료에도 사용된다.Carbon black used as the colorant is a particle having an extremely fine size of visible light wavelength, the main component is carbon, and is used for coloring and improving weather resistance and imparting conductivity to plastics. .
카본블랙 입자는 무정형카본입자로 되어 있는데, 폭 10 ~ 30Å, 두께 10 ~ 20Å정도의 미결정 집합체이다. 즉 생성과정에서 형성된 핵에 축합다환 탄화수소가 화학적인 융착이 되어 형성하는 구조가 1차적으로 생성되고 그것이 2차적 물리적인 힘(Van der waalsforce)에 의해 복잡하게 응집된 구조로 이루어진 것이다.The carbon black particles are amorphous carbon particles, and are microcrystalline aggregates having a width of 10 to 30 GPa and a thickness of about 10 to 20 GPa. In other words, the structure formed by the chemical fusion of condensed polycyclic hydrocarbons to the nucleus formed during the production process is formed first, and it is composed of a complex aggregated structure by the secondary physical force (Van der waalsforce).
이와 같은 카본블랙은 전체혼합물에 대해 2 ~ 5중량%범위 내에서 사용되며, 상기 카본블랙이 2중량% 미만으로 사용될 경우에는 흑색도가 떨어지는 문제가 발생하고, 5중량%를 초과하여 사용하게 될 경우에는 플라스틱 제품의 내충격성 등 내구성이 떨어지는 문제가 발생하므로, 상기 카본블랙은 슬레트를 제조하기 위한 전체 조성물에 대해 2 ~ 5중량%의 범위로 사용하는 것이 바람직하다.Such carbon black is used within the range of 2 to 5% by weight based on the total mixture, and when the carbon black is used in less than 2% by weight, there is a problem that the blackness is lowered, which will be used in excess of 5% by weight. In this case, since problems of durability such as impact resistance of plastic products occur, it is preferable to use the carbon black in the range of 2 to 5% by weight based on the total composition for producing the slits.
상기 보강제인 염소화폴리에틸렌(Chlorinated polyethylene:CPE)는 플라스틱과 고무 특성을 겸비한 열가소성 엘라스토머로서 HDPE로부터 제조되며, 염소함유량과 반응조건 등에 따라 다양한 종류가 생산된다.Chlorinated polyethylene (CPE), a reinforcing agent, is manufactured from HDPE as a thermoplastic elastomer having both plastic and rubber properties, and various kinds are produced according to chlorine content and reaction conditions.
이와 같은 염소화폴리에틸렌은 분자 내 이중결합이 없어 내후성, 내오존성이 우수하며, 극성을 띠는 분자 특성으로 다른 수지와의 상용성이 뛰어나다.Such chlorinated polyethylene is excellent in weather resistance and ozone resistance because there is no double bond in the molecule, and has excellent polarity and compatibility with other resins.
이런 특성을 갖는 염소화폴리에틸렌은 전체 혼합물에 대해 2 ~ 5중량%로 사용되며, 2중량% 미만으로 사용하게 될 경우에는 충격강도가 떨어져 작은 충격에도 금이 가거나 쪼개지는 문제가 발생하며, 5중량%를 초과하여 사용하게 될 경우에는 사출성형에 의한 성형성이 떨어지므로 제품생산성이 떨어지는 문제가 발생하므로, 상기 보강제는 슬레트를 제조하기 위한 전체 조성물에 대해 2 ~ 5중량%의 범위로 사용하는 것이 바람직하다.Chlorinated polyethylene having such a property is used in an amount of 2 to 5% by weight based on the total mixture, and when used at less than 2% by weight, the impact strength is reduced and cracking or splitting occurs even in small impacts. When used in excess of the moldability due to the injection molding is poor because the product productivity problem occurs, the reinforcing agent is preferably used in the range of 2 to 5% by weight based on the total composition for producing the slits. Do.
상기 자외선흡수제인 벤조페논(Benzophenone)은 전체 조성물에 대해 2 ~ 5중량%가 사용되며, 2중량% 미만으로 사용하게 될 경우에는 내후성 저하로 변색 또는 크랙이 발생할 수 있고, 5중량%를 초과하여 사용하게 될 경우에는 물성이 저하되거나 성형결함이 발생할 수 있으므로, 상기 자외선흡수제는 전체 조성물에 대해 2 ~ 5중량%의 범위로 사용하는 것이 바람직하다.Benzophenone, the UV absorber, is used in an amount of 2 to 5% by weight based on the total composition, and when used at less than 2% by weight, discoloration or cracking may occur due to a decrease in weather resistance, and in excess of 5% by weight. When used, since physical properties may decrease or molding defects may occur, the ultraviolet absorber is preferably used in an amount of 2 to 5% by weight based on the total composition.
상기 자외선 흡수제는 300 ~ 400nm의 유해한 자외선을 흡수하여 열로 변환시키는 것으로, 벤조페논 외에 살리실산에스테르, 벤젠산에스테르를 사용할 수도 있다.The ultraviolet absorber absorbs harmful ultraviolet rays of 300 to 400 nm and converts them into heat, and salicylic acid esters and benzene acid esters may be used in addition to benzophenone.
앞서와 같은 조성비율로 혼합된 재생플라스틱은 스레트로 제조되기 위해 먼저 150 ~ 230℃로 용융 가열시킨다. 이때 230℃를 초과할 경우에는 열변색이 발생하거나 국부적인 탄화로 인하여 흑점이나 황줄 등의 열안정성 저하 문제가 발생할 수 있으므로, 용융온도는 150 ~ 230℃로 유지하는 것이 바람직하다.Regenerated plastics mixed in the same composition ratio as above are first melt-heated to 150 to 230 ° C. in order to be prepared into a strip. In this case, if the temperature exceeds 230 ° C., thermal discoloration may occur or localization may cause thermal stability deterioration problems such as black spots or yellow lines, and thus the melting temperature is preferably maintained at 150 to 230 ° C.
이와 같이 용융된 재생플라스틱은 50 ~ 85℃를 유지하는 금형을 통과시켜 스레트 형상으로 사출성형함으로써 재생플라스틱을 이용한 스레트가 완성되며, 이와같이 제조된 스레트에 대한 구체적인 형상은 본 발명의 도 1 내지 도 2에 나타내었으며, 도면에 대해 간략히 설명하자면 도 1은 본 발명에 따른 재생플라스틱을 이용한 스레트(1)를 사시도로 보여주고 있으며, 도 2는 본 발명에 따른 재생플라스틱을 이용한 스레트(1)의 단면을 절개한 형태를 보이고 있다.The molten recycled plastic is passed through a mold maintained at 50 to 85 ° C. to be injection molded into a threaded shape, thereby completing a thread using the recycled plastic, and the specific shape of the thus prepared thread is illustrated in FIGS. 1 to 2. 1 is a perspective view of a
이하, 상기한 구성을 실시 예를 통해 더욱 구체적으로 살펴보도록 한다.Hereinafter, the above configuration will be described in more detail with reference to the following examples.
실시 예 1Example 1
질소를 연속적으로 주입할 수 있는 나선형(helicoidal)의 교반기를 갖춘 스테인리스 스틸 재질의 회분식 반응기(batch reactor)에 93.5g의 폐 폴리프로필렌(Polypropylene:PP)과 2g의 SiO2촉매를 주입한 다음, 반응기의 온도를 6℃/min으로 350 ~ 400℃ 범위의 반응 온도까지 승온시키고 나서 2시간 동안 온도를 유지하였다. 93.5 g of waste polypropylene (PP) and 2 g of SiO 2 catalyst were injected into a stainless steel batch reactor equipped with a helical stirrer capable of continuously injecting nitrogen. The temperature of was raised to a reaction temperature in the range of 350 ~ 400 ℃ at 6 ℃ / min and then maintained the temperature for 2 hours.
이와 같이 SiO2 촉매를 이용하여 분해된 폐 폴리프로필렌(Polypropylene:PP) 93.5g에 분자식이 (CH3)3CC6H3(OCH3)OH인 부틸히드록시아니솔(2,3-tert-butyl-4-methoxyphenol:BHA) 0.5g, 카본블랙(Carbon black) 2g, 염소화폴리에틸렌(Chlorinated polyethylene:CPE) 2g, 벤조페논(Benzophenone) 2g을 첨가하여 혼합시킨 후에 200℃로 용융시키고, 그 용융수지를 60℃로 가열된 금형에 통과시켜 스레트 형상으로 사출성형하였다.The butylhydroxyanisole (2,3-tert-) having the molecular formula (CH 3 ) 3 CC 6 H 3 (OCH 3 ) OH in 93.5 g of waste polypropylene (PP) decomposed using the SiO 2 catalyst as described above. 0.5 g of butyl-4-methoxyphenol: BHA, 2 g of carbon black, 2 g of chlorinated polyethylene (CPE), and 2 g of benzophenone were added and mixed, followed by melting at 200 ° C. Was injection molded into a threaded shape by passing through a mold heated to 60 ℃.
실시 예 2Example 2
상기 실시 예 1과 동일한 방법으로 제조되며, 다만 폐 플라스틱을 선택함에 있어, 폴리에틸렌(Polyethylene:PE), 폴리카보네이트(Polycarbonate:PC), 폴리프로필렌(Polypropylene:PP), 폴리염화비닐(Polyvinyl chloride:PVC), 폴리스티 렌(Styrene resin:PS), 폴리에틸렌 테레프탈레이트(Polyethylene terephthalate:PET)을 동 비율로 혼합한 것을 사용하였다.Manufactured in the same manner as in Example 1, except in the selection of waste plastic, polyethylene (PE), polycarbonate (PC), polypropylene (PP), polyvinyl chloride (Polyvinyl chloride: PVC) ), Polystyrene (PS) and polyethylene terephthalate (PET) were used in the same ratio.
이상에서 살펴본 바와 같이, 본 발명에 따른 재생플라스틱을 이용한 스레트는 폐기물로 처리되는 폐 플라스틱을 재생하여 스레트를 제조함으로써 환경개선 효과 및 자원재활용에 따른 경제적 효과를 갖는다.As described above, the thread using the recycled plastics according to the present invention has an economic effect according to the environmental improvement effect and resource recycling by producing the waste by recycling the waste plastic treated as waste.
또한, 건축자재로서 경량하여 운반 및 작업이 용이하고, 강도면에서 뛰어나 잘 깨지지 않기 때문에 보관이 용이하고, 작업의 효율성을 높일 수 있다는 장점을 갖는다.In addition, it is lightweight as a building material, it is easy to transport and work, has excellent strength and easy to store because it is not easily broken, and has the advantage of improving work efficiency.
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| US4412016A (en) * | 1981-03-30 | 1983-10-25 | Ube Industries, Ltd. | Propylene polymer composition |
| KR20050017280A (en) * | 2003-08-12 | 2005-02-22 | 이용찬 | The manufacturing method for recycling the mixed scrapped plastics and the mixed scrapped plastics produced by using this method |
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