KR20030042229A - Thermoplastic elastomer resin composition for gasket of refrigerator - Google Patents
Thermoplastic elastomer resin composition for gasket of refrigerator Download PDFInfo
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- 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
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
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- 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
- C08K3/013—Fillers, pigments or reinforcing additives
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- 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
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
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- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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- C08L2207/32—Properties characterising the ingredient of the composition containing low molecular weight liquid component
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Abstract
Description
본 발명은 냉장고 개스킷용 열가소성 엘라스토머 수지 조성물에 관한 것으로, 보다 상세하게는 종래의 염화비닐 수지와 유사한 특성을 가지면서도 염소를 포함하지 않아 개스킷의 소각시 염화수소나 다이옥신 등의 유해물질 발생 우려가 없는 친환경적 수지 조성물에 관한 것이다.The present invention relates to a thermoplastic elastomer resin composition for a refrigerator gasket, and more particularly, to have an environment similar to that of a conventional vinyl chloride resin, but does not contain chlorine, and thus does not contain harmful substances such as hydrogen chloride or dioxin when the gasket is incinerated. It relates to a resin composition.
일반적으로 냉장고 개스킷 제조에는 연질 염화비닐 수지(이하, "PVC"라 함)가 사용되고 있다. PVC는 현탁중합 방법에 의해 비교적 값이 싼 설비를 사용하여 제조될 수 있으며, 성형성이 우수하고 염소를 함유하고 있어 난연성을 가지며, 재료 가격도 저렴하기 때문에 광범위하게 사용되고 있는 수지이다. 그러나, PVC는 연소시 염화수소 가스를 생성하는데, 염화수소 가스는 인체에 유해할 뿐만 아니라 부식성이 강하기 때문에 소각로를 손상시키는 문제점이 있다. 특히 저온에서 소각되는 경우, 반응 경로는 증명되고 있지 않지만 유독한 다이옥신을 생성하는 것으로 알려져 있다. 염소는 오존층 파괴 물질로서 환경보호법에 의거하여 세계적으로 염화비닐에 대한 사용 규제가 강화되는 추세이기 때문에, 대체 소재 개발이 시급히 요구되고 있어 이에 대한 개발 경쟁이 활발히 진행되고 있다.In general, a soft vinyl chloride resin (hereinafter referred to as "PVC") is used to manufacture a refrigerator gasket. PVC can be produced using a relatively inexpensive equipment by the suspension polymerization method, and is a resin widely used because of excellent moldability and chlorine-containing flame retardancy and low material price. However, PVC generates hydrogen chloride gas upon combustion, which has a problem of damaging an incinerator because hydrogen chloride gas is not only harmful to the human body but also corrosive. Particularly when incinerated at low temperatures, the reaction pathway is not proven but is known to produce toxic dioxins. Since chlorine is an ozone depleting substance, the use of vinyl chloride is being tightened globally under the Environmental Protection Act. Therefore, development of alternative materials is urgently required, and development competition is actively in progress.
본 발명의 목적은 상기와 같은 종래기술의 문제점을 해결하기 위한 것으로, 냉장고 개스킷 용도로 사용시 현행 연질 염화비닐 수지와 유사한 특성을 시현하면서도, 할로겐 원소를 포함하지 않아 폐기시 다이옥신과 같은 환경호르몬 및 유해가스를 생성하지 않는 친환경적인 수지 조성물을 제공하는 것이다.An object of the present invention is to solve the problems of the prior art as described above, while exhibiting similar characteristics to the current soft vinyl chloride resin when used as a refrigerator gasket, environmental hormones such as dioxin and harmful at the time of disposal do not contain a halogen element It is to provide an environmentally friendly resin composition that does not generate a gas.
즉, 본 발명은 폴리프로필렌 5~25 중량%, 폴리에틸렌 5~20 중량%, 수첨 블록공중합체 20~40 중량%, 무기 충전제 10~40 중량% 및 프로세스 오일 15~35 중량%를 포함하는 수지 조성물 100 중량부에 대하여 점착제(tackifier) 1.0~10 중량부가 첨가된 냉장고 개스킷용 열가소성 엘라스토머 수지 조성물을 제공한다.That is, the present invention is a resin composition comprising 5 to 25% by weight polypropylene, 5 to 20% by weight polyethylene, 20 to 40% by weight hydrogenated block copolymer, 10 to 40% by weight inorganic filler and 15 to 35% by weight process oil Provided is a thermoplastic elastomer resin composition for a refrigerator gasket to which 1.0 to 10 parts by weight of a tackifier is added per 100 parts by weight.
이하에서 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail.
본 발명에 사용되는 폴리프로필렌은 내열성 및 가공 안정성을 부여하는 추가적인 효과가 있으며, 그 종류는 본 발명의 목적을 저해하지 않는 한 특별히 한정되지 않고 용융지수가 0.5~20g/10분(ASTM D1238, 230℃, 2.16kg)인 폴리프로필렌으로서, 아이소택틱 폴리프로필렌 단독중합체, 에틸렌/프로필렌 공중합체, 또는 랜덤 폴리프로필렌이 사용될 수 있다. 그 중에서도 아이소택틱 폴리프로필렌 단독중합체가 내열성면에서 양호하다. 폴리프로필렌의 용융지수가 0.5g/10분 미만인 경우에는 조성물 전체의 유동성이 낮아지고 부품의 성형성이 양호하지 못한 반면, 용융지수가 20g/10분을 초과하는 경우에는 조성물의 다른 성분인 수첨 블록공중합체와의 분산 불량으로 물성이 불안정하게 되어 바람직하지 않다.The polypropylene used in the present invention has an additional effect of imparting heat resistance and processing stability, and the kind thereof is not particularly limited as long as the object of the present invention is not impaired, and the melt index is 0.5 to 20 g / 10 minutes (ASTM D1238, 230). As polypropylene, isotactic polypropylene homopolymer, ethylene / propylene copolymer, or random polypropylene can be used. Among them, the isotactic polypropylene homopolymer is good in terms of heat resistance. If the melt index of the polypropylene is less than 0.5 g / 10 minutes, the flowability of the composition as a whole becomes poor and the moldability of the parts is not good, whereas if the melt index exceeds 20 g / 10 minutes, the other component of the composition is a hydrogenated block. Physical properties become unstable due to poor dispersion with the copolymer, which is not preferable.
상기 폴리프로필렌의 함량은 점착제가 첨가되기 이전의 수지 조성물 중에 5~25 중량%이다. 폴리프로필렌 함량이 5 중량% 미만인 경우에는 최종 수지 조성물의 내열성 및 유동성이 저하되는 반면, 25 중량%를 초과하는 경우에는 유연성 및 압출특성이 저하된다.The content of the polypropylene is 5 to 25% by weight in the resin composition before the pressure-sensitive adhesive is added. When the polypropylene content is less than 5% by weight, the heat resistance and fluidity of the final resin composition are lowered, while when the polypropylene content is higher than 25% by weight, the flexibility and the extrusion characteristics are lowered.
본 발명에 사용된 폴리에틸렌은 제품 용융 물성과 압출 가공성을 향상시켜주는 효과가 있으며, 저밀도 폴리에틸렌(LDPE)을 사용할 수 있는데, 특히 용융지수가 0.1~5.0g/10분(190℃, 2.16kg)인 저밀도 폴리에틸렌을 사용하는 것이 바람직하다.Polyethylene used in the present invention has the effect of improving the product melt properties and extrusion processability, low density polyethylene (LDPE) can be used, in particular the melt index is 0.1 ~ 5.0g / 10 minutes (190 ℃, 2.16kg) Preference is given to using low density polyethylene.
상기 폴리에틸렌의 함량은 점착제가 첨가되기 이전의 수지 조성물 중에 5~20 중량%이다. 폴리에틸렌 함량이 5 중량% 미만인 경우에는 최종 수지 조성물의 용융 물성 및 압출특성이 저하되는 반면, 20 중량%를 초과하는 경우에는 성형품의 내열성이 나빠진다.The content of polyethylene is 5 to 20% by weight in the resin composition before the pressure-sensitive adhesive is added. When the polyethylene content is less than 5% by weight, the melt properties and the extrusion properties of the final resin composition are lowered, whereas when the polyethylene content is more than 20% by weight, the heat resistance of the molded product is deteriorated.
본 발명에 사용된 수첨 블록공중합체는 스티렌 또는 그의 유도체의 단독중합체로 이루어진 블록 A와 공역디엔 화합물의 단독중합체 또는 공중합체로 이루어진 블록 B를 각각 1개 이상씩 포함한다. 이때, 상기 블록 A의 함유율은 전체 블록공중합체의 5~60 중량%의 범위에 있고, 이 범위를 초과하면 성형품의 강성이 지나치게 높아지고 유연성을 유지할 수 없게 된다. 상기 블록 A를 구성하는 스티렌 유도체의 예로는 메틸 스티렌, 1,3-디메틸 스티렌, 비닐 나프탈렌, 프로필 스티렌, 비닐 안트로센 등을 들 수 있다. 한편, 상기 블록 B를 구성하는 공역디엔 화합물의 예로는 1,3-부타디엔, 이소프렌, 2,3-디메틸-1,3-부타디엔, 1,3-펜타디엔, 1,3 헥사디엔 등을 들 수 있고, 70% 이상이 수소 첨가되어 있다. 수소 첨가율이 70% 미만이면 내후성이 급격하게 떨어져 바람직하지 않다. 이와 같은 조성을 가진 수첨 블록공중합체의 구조는 선상 또는 분지상 중 어느 것이라도 무방하다.The hydrogenated block copolymer used in the present invention includes at least one block A composed of homopolymer of styrene or a derivative thereof and one block B composed of homopolymer or copolymer of conjugated diene compound. At this time, the content of the block A is in the range of 5 to 60% by weight of the total block copolymer, and if it exceeds this range, the rigidity of the molded article becomes too high and flexibility cannot be maintained. Examples of the styrene derivative constituting the block A include methyl styrene, 1,3-dimethyl styrene, vinyl naphthalene, propyl styrene, vinyl anthrosene, and the like. Meanwhile, examples of the conjugated diene compound constituting the block B include 1,3-butadiene, isoprene, 2,3-dimethyl-1,3-butadiene, 1,3-pentadiene, 1,3 hexadiene, and the like. 70% or more are hydrogenated. If the hydrogenation rate is less than 70%, the weather resistance is sharply dropped, which is not preferable. The structure of the hydrogenated block copolymer having such a composition may be linear or branched.
상기 수첨 블록공중합체의 함량은 점착제가 첨가되기 이전의 수지 조성물 중에 20~40 중량%이다. 수첨 블록공중합체 함량이 20 중량% 미만인 경우에는 성형품의 유연성을 유지할 수 없는 반면, 40 중량%를 초과하는 경우에는 유동성이 현저하게 저하된다.The content of the hydrogenated block copolymer is 20 to 40% by weight in the resin composition before the pressure-sensitive adhesive is added. When the content of the hydrogenated block copolymer is less than 20% by weight, the flexibility of the molded article cannot be maintained, whereas when it exceeds 40% by weight, the fluidity is significantly reduced.
본 발명에 사용된 무기 충전제는 개스킷 홀더의 보강재 역할을 하며, 이러한 용도로 통상적으로 사용되는 임의의 무기 충전제를 사용하는 것이 가능하고, 예를 들면 탈크, 탄산칼슘, 클레이, 실리카, 알루미나, 카본블랙, 수산화마그네슘, 탄소섬유, 제오라이트, 황산바륨 등을 사용할 수 있다.The inorganic filler used in the present invention serves as a reinforcement for the gasket holder, and it is possible to use any inorganic filler commonly used for this purpose, for example talc, calcium carbonate, clay, silica, alumina, carbon black , Magnesium hydroxide, carbon fiber, zeolite, barium sulfate and the like can be used.
상기 무기 충전제의 함량은 점착제가 첨가되기 이전의 수지 조성물 중에 10~40 중량%이다. 무기 충전제 함량이 10 중량% 미만인 경우에는 성형품의 강도가 열세한 반면, 40 중량%를 초과하는 경우에는 수지 조성물의 용융물성 및 압출특성이 저하되므로 바람직하지 않다.The content of the inorganic filler is 10 to 40% by weight in the resin composition before the pressure-sensitive adhesive is added. When the inorganic filler content is less than 10% by weight, the strength of the molded article is inferior, whereas when the inorganic filler content is more than 40% by weight, the melt property and the extrusion characteristics of the resin composition are deteriorated.
본 발명에 사용된 프로세스 오일은 수지 조성물의 연화성과 유동성을 높이기 위한 것으로, 파라핀계 오일이 상용성 면에서 바람직하다.Process oil used in the present invention is to increase the softening and fluidity of the resin composition, paraffin-based oil is preferred in terms of compatibility.
상기 프로세스 오일의 함량은 점착제가 첨가되기 이전의 수지 조성물 중에 15~35 중량%이다. 프로세스 오일 함량이 15 중량% 미만인 경우에는 조성물의 연화성과 유동성이 저하되는 반면, 35 중량%를 초과하는 경우에는 혼련작업시 지나치게 끈적끈적하여 적당한 혼련이 어렵다.The content of the process oil is 15 to 35% by weight in the resin composition before the pressure-sensitive adhesive is added. If the process oil content is less than 15% by weight, the softening and flowability of the composition is lowered, while if the process oil content is more than 35% by weight, it is difficult to properly knead the kneading operation.
본 발명에 사용된 점착제는 열가소성 석유수지로서 엘라스토머에 점착력 또는 융착력을 부여하기 위해 엘라스토머와 함께 사용될 수 있는 것으로 알려진 통상의 석유수지를 사용할 수 있으며, 예를 들면 피페릴렌(piperylene)과 2-메틸-2-부텐의 다이엔-올레핀 공중합체, 수첨된 DCPD(decyclopentadiene) 수지 등을 사용할 수 있다. 특히, 열안정성을 얻기 위해서는 수첨된 DCPD 수지를 사용하는 것이 바람직하다.The pressure-sensitive adhesive used in the present invention may be a conventional petroleum resin known to be used with an elastomer to impart adhesion or adhesion to the elastomer as the thermoplastic petroleum resin, for example, piperylene and 2-methyl Diene-olefin copolymers of 2-butene, hydrogenated decyclopentadiene (DCPD) resins, and the like can be used. In particular, it is preferable to use a hydrogenated DCPD resin in order to obtain thermal stability.
상기 점착제는 점착제를 제외한 상기 성분들을 모두 포함하는 수지 조성물 100 중량부에 대하여 1.0~10 중량부의 비율로 첨가된다. 만일, 점착제 첨가량이 1.0 중량부 미만이면 원하는 수준의 점착력을 얻을 수 없으며, 10 중량부를 초과하면 조성물의 유동성이 급격하게 저하되어 압출성형이 불가능해진다.The pressure-sensitive adhesive is added in a ratio of 1.0 to 10 parts by weight based on 100 parts by weight of the resin composition including all the components except the pressure-sensitive adhesive. If the amount of the pressure-sensitive adhesive added is less than 1.0 part by weight, a desired level of adhesive strength cannot be obtained. If the amount of the pressure-sensitive adhesive is more than 10 parts by weight, the fluidity of the composition is drastically lowered and extrusion molding is impossible.
이외에도, 본 발명의 수지 조성물에는 내열안정제, 내후안정제, 대전방지제, 활제, 슬립제, 항균제, 핵제, 난연제, 안료, 염료 등과 같은 각종 첨가제가 본 발명의 특징에 어긋나지 않는 범위내에서 첨가될 수 있다.In addition, various additives such as heat stabilizers, weather stabilizers, antistatic agents, lubricants, slip agents, antibacterial agents, nucleating agents, flame retardants, pigments, dyes, and the like may be added to the resin composition of the present invention without departing from the characteristics of the present invention. .
본 발명의 수지 조성물을 제조하는 방법에 있어서는, 압출기, 벤버리형 혼합기 또는 브라벤더형 혼합기를 사용한 재료혼련에 의한 기계적 전단법이 사용되며, 보편적으로 알려진 폴리프로필렌 융점 이상 170~250℃에서 배합하는 가공조건을 이용하는 것이 가능하다.In the method for producing the resin composition of the present invention, a mechanical shearing method by material kneading using an extruder, a Benbury type mixer, or a brabender type mixer is used, and the compound is blended at a melting point of 170 to 250 ° C. or higher than a commonly known polypropylene melting point. It is possible to use processing conditions.
이와 같이 제조된 수지 조성물을 압출성형하여 얻어지는 성형물을 정척에 컷트하고, 냉장고 철판과 접촉한 면의 실에는 마그넷을 삽입하고, 코너부에는 형상 지지를 위해 발포체를 삽입한 후 열융착시키면 냉장고 개스킷을 얻을 수 있다.The molding obtained by extruding the resin composition thus prepared is cut to the front end, a magnet is inserted into the thread of the surface in contact with the iron plate of the refrigerator, and a foam is inserted into the corner portion to support the shape. You can get it.
본 발명은 하기의 실시예에 의하여 보다 구체적으로 이해될 수 있으며, 하기의 실시예는 본 발명을 예시하기 위한 예에 지나지 않는 것으로 본 발명의 보호범위를 제한하고자 하는 것은 아니다.The present invention can be understood in more detail by the following examples, the following examples are only examples for illustrating the present invention and are not intended to limit the protection scope of the present invention.
실시예 및 비교예Examples and Comparative Examples
실시예 1-2에 따른 수지 조성물 중의 각 성분들의 함량과 물성평가 결과를 하기 표 1에 나타내었다. 실시예에 사용된 각 성분과 물성평가 방법에 대한 자세한 설명은 하기와 같으며, 통상의 냉장고 개스킷용 PVC 수지가 비교예로 사용되었다.The content and physical property evaluation results of each component in the resin composition according to Example 1-2 are shown in Table 1 below. Detailed description of each component and the physical property evaluation method used in the Examples are as follows, a conventional PVC resin for refrigerator gaskets was used as a comparative example.
[성분][ingredient]
1) 폴리프로필렌: 용융지수 10g/10분(230℃, 2.16kg)인 폴리프로필렌 단독중합체1) Polypropylene: Polypropylene homopolymer with melt index 10 g / 10 min (230 ° C., 2.16 kg)
2) 폴리에틸렌: 용융지수 1.0g/10분(190℃, 2.16kg)인 저밀도 폴리에틸렌2) Polyethylene: Low Density Polyethylene with Melt Index of 1.0g / 10min (190 ℃, 2.16kg)
3) 수첨 블록공중합체: 스티렌-에틸렌/부틸렌-스티렌 구조를 갖는 수소 첨가된 블록공중합체 (스티렌/러버 함유율 33/67 )3) Hydrogenated block copolymer: Hydrogenated block copolymer having a styrene-ethylene / butylene-styrene structure (styrene / rubber content 33/67)
4) 무기 충전제: 비중 2.7, 평균입도 2.8 마이크로미터인 탄산칼슘4) Inorganic filler: calcium carbonate with specific gravity of 2.7 and average particle size of 2.8 micrometers
5) 프로세스 오일: 파라핀계 탄화수소 오일 (점도 485 cSt 100℉ )5) Process oil: paraffinic hydrocarbon oil (viscosity 485 cSt 100 ℉)
6) 점착제 : 수소 첨가된 DCPD (decyclopentadiene) 수지6) Adhesive: Hydrogenated DCPD (decyclopentadiene) resin
[물성 평가 방법][Property evaluation method]
1) 밀도 : ASTM D792에 의거하여 상온에서 측정하였다.1) Density: Measured at room temperature according to ASTM D792.
2) 경도: ASTM D2240에 의거하여 상온에서 Shore A값을 측정하였다.2) Hardness: Shore A value was measured at room temperature according to ASTM D2240.
3) 인장강도: ASTM D638에 의거하여 150mm/분의 속도로 상온에서 측정하였다.3) Tensile strength: measured at room temperature at a rate of 150mm / min in accordance with ASTM D638.
4) 신율: ASTM D638에 의거하여 150mm/분의 속도로 상온에서 측정하였다.4) Elongation: measured at room temperature at a rate of 150 mm / min according to ASTM D638.
5) 노화시험: 시료를 120℃의 항온조에서 6시간 방치 후, 상기 2)-4) 항목에서와 동일한 방법으로 경도, 인장강도, 및 신율을 측정하고 각각의 변화율을 계산하였다.5) Aging test: After leaving the sample in a thermostatic bath at 120 ° C. for 6 hours, hardness, tensile strength, and elongation were measured in the same manner as in 2) -4), and the respective rates of change were calculated.
6) 내열성: 시험편의 길이를 확보하여 100mm 표선 온도 70℃ 항온조에 6시간 방치후 치수 변화를 측정하였다.6) Heat resistance: The length of the test piece was secured, and the dimensional change was measured after standing for 6 hours in a thermostatic bath at 100 ° C.
7) 내한성: 시험편의 길이를 확보하여 100mm 표선 온도 -20℃ 항온조에 6시간 방치후 치수 변화를 측정하였다.7) Cold resistance: The length of the test piece was secured, and the dimensional change was measured after standing for 6 hours in a 100 mm mark temperature -20 ° C in a thermostat.
8) 내수성: 시료를 100℃의 물속에 6시간 방치 후 중량변화를 측정하였다.8) Water resistance: The weight change was measured after leaving the sample in water at 100 ° C. for 6 hours.
9) 퇴색시험 : 시험편의 절반을 테이프로 가린 후 자외선에 50시간 방치후 색도변화를 측정하였다.9) Discoloration test: After half of the test piece was covered with a tape, the color change was measured after being left for 50 hours in ultraviolet light.
10) 복원력: 시료를 200mm로 제작하여 φ30환봉을 대고 100mm 지점에서 180°꺽어 양쪽을 고정시킨 다음 30분 경과 후 복원정도를 측정하였다.10) Restoration force: The sample was made into 200mm, and both sides were fixed by rotating 180 ° at 100mm point with φ30 round bar, and then restoring degree was measured after 30 minutes.
11) 융착력: 개스킷 코너부 열융착 후 시료의 한쪽을 고정시키고 다른쪽은 스프링저울에 고정시켜 서서히 당기면서 융착부가 찢어지는 시점을 측정하였다.11) Welding force: After the heat treatment of the corner of the gasket, one side of the sample was fixed and the other side was fixed to the spring balance, and the pulling time was measured while gradually pulling the welded portion.
12) 압출성형성: 압출기로의 압출 특성과 제품외관을 육안 및 촉감으로 평가하였다.12) Extrusion: The extrusion characteristics and the appearance of the product to the extruder were visually and tactilely evaluated.
- ○: 표면에 이물에 의한 결점이 없으며 PVC와 동등하게 성형할 수 있다.-○: There is no flaw by foreign material on the surface and it can be molded equally with PVC.
- ×: 표면에 이물에 의한 결점이 있으며 PVC와 동등하게 성형할 수 없다.-X: There exists a fault by the foreign material on the surface, and it cannot shape | mold like PVC.
상기 표 1에서 볼 수 있는 바와 같이, 실시예에 따른 열가소성 엘라스토머 수지 조성물은 성형품의 표면과 열융착력 등의 2차 가공성이 양호하고 내열성, 내후성, 내수성, 내한성 및 기타 기계적 물성에서 기존 PVC 수지와 동등 이상의 특성을 시현하였다.As can be seen in Table 1, the thermoplastic elastomer resin composition according to the embodiment has a good second processability such as the surface of the molded article and the heat-sealing strength, and the existing PVC resin in the heat resistance, weather resistance, water resistance, cold resistance, and other mechanical properties The above characteristics were demonstrated.
이상에서 상세히 설명한 바와 같이, 본 발명에 의해 종래의 PVC 수지의 환경문제에 대응한 냉장고 개스킷용 비할로겐 수지 조성물을 얻을 수 있다.As described above in detail, the present invention can obtain a non-halogen resin composition for a refrigerator gasket corresponding to an environmental problem of a conventional PVC resin.
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KR100509571B1 (en) * | 2002-10-10 | 2005-08-22 | 전미령 | The Profile gasket and The Compound |
US9290685B2 (en) | 2012-09-12 | 2016-03-22 | Fine Chemical Co., Ltd. | Composition for a refrigerator gasket |
US9634325B2 (en) | 2014-01-27 | 2017-04-25 | Samsung Sdi Co., Ltd. | Negative active material, negative electrode and lithium battery including the negative active material, and method of manufacturing the negative active material |
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KR19990083193A (en) * | 1998-04-27 | 1999-11-25 | 엔다 나오또 | Thermoplastic resin composition and refrigerator gasket |
KR100291497B1 (en) * | 1998-11-13 | 2001-09-17 | 이충권 | Resin composition for shoe rear axle |
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KR100509571B1 (en) * | 2002-10-10 | 2005-08-22 | 전미령 | The Profile gasket and The Compound |
US9290685B2 (en) | 2012-09-12 | 2016-03-22 | Fine Chemical Co., Ltd. | Composition for a refrigerator gasket |
US9634325B2 (en) | 2014-01-27 | 2017-04-25 | Samsung Sdi Co., Ltd. | Negative active material, negative electrode and lithium battery including the negative active material, and method of manufacturing the negative active material |
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