KR20140005684A - Thermoplastic polyurethane - Google Patents
Thermoplastic polyurethane Download PDFInfo
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- KR20140005684A KR20140005684A KR1020120073893A KR20120073893A KR20140005684A KR 20140005684 A KR20140005684 A KR 20140005684A KR 1020120073893 A KR1020120073893 A KR 1020120073893A KR 20120073893 A KR20120073893 A KR 20120073893A KR 20140005684 A KR20140005684 A KR 20140005684A
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- thermoplastic polyurethane
- graphene
- polyurethane film
- film containing
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- 229920002803 thermoplastic polyurethane Polymers 0.000 title claims abstract description 38
- 239000004433 Thermoplastic polyurethane Substances 0.000 title claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 38
- 239000008188 pellet Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 239000011347 resin Substances 0.000 claims abstract description 4
- 229920005862 polyol Polymers 0.000 claims description 18
- 150000003077 polyols Chemical class 0.000 claims description 18
- 239000004970 Chain extender Substances 0.000 claims description 10
- 125000005442 diisocyanate group Chemical group 0.000 claims description 10
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 7
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 6
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 5
- 239000004417 polycarbonate Substances 0.000 claims description 5
- 229920000515 polycarbonate Polymers 0.000 claims description 5
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical group CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract 2
- 230000002250 progressing effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 4
- 238000004383 yellowing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000005462 imide group Chemical group 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C08J5/18—Manufacture of films or sheets
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
-
- 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
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- 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
- C08J2300/22—Thermoplastic resins
-
- 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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
본 발명은 열가소성 폴리우레탄 필름에 도전성 기능을 갖는 그래핀을 함유시켜 활용분야를 확대시킬 수 있는 그래핀을 함유하는 열가소성 폴리우레탄 필름에 관한 것이다.
The present invention relates to a thermoplastic polyurethane film containing graphene that can expand the field of application by containing a graphene having a conductive function in the thermoplastic polyurethane film.
열가소성 폴리우레탄(Thermoplastic polyurethane : TPU)은 1950년대 초 유럽에서 처음 개발되어 1960년대에 이르러 본격적으로 산업생산화 된 탄성 고분자 물질이다. Polyurethane Elastomer란 분자구조 중에 우레탄구조를 가지고 있는 고무상의 탄성고분자체를 가리키는 총칭으로서 성형법에 의해 주형형, 열가소형으로 구별된다. 우수한 내마모성과 유연성이 있으면서 뛰어난 인장강도를 지난 특이한 성형재료로 특히 TPU는 매우 뛰어난 기계적 성질과 용이한 가공성을 가지고 있다. Thermoplastic polyurethane (TPU) is an elastomeric polymer that was first developed in Europe in the early 1950s and industrialized in the 1960s. Polyurethane Elastomer is a generic term for rubber-like elastic polymer having a urethane structure in its molecular structure, and is classified into a mold type and a thermoplastic type by the molding method. It is a unique molding material with excellent wear resistance and flexibility and excellent tensile strength. Especially, TPU has very good mechanical properties and easy processability.
TPU는 압출성형, 사출성형, Calender성형 등이 가능한, 가공성이 용이한 열가소성의 폴리우레탄 엘라스토머로서 뜨거운 물이나 강산성, 극성용제 등에 약한 문제는 있으나, 가공기술이 개량되어 우수한 특성과 생산성을 살려 엔지니어링 플라스틱의 용도뿐만 아니라, 스포츠용품, 생활용품, 산업용품 등에도 폭넓게 적용되고 있다.TPU is a thermoplastic polyurethane elastomer that is easy to process and can be extruded, injection molded, calendered, etc., but it has weak problems such as hot water, strong acidity, and polar solvents. In addition to the use of the, sports products, household goods, industrial products, etc. are widely applied.
이소시아네이트와 저융점비결정성(soft segment)을 구성하는 고분자 폴리올 및 고융점결정성(hard segment)을 구성하는 단상 폴리올 등 세 성분의 조합에 의해서 구성되는 중합체로서, 고분자 폴리올의 형태에 따라 ester계, ether계, caprolacton계로 분류된다.A polymer composed of a combination of three components: an isocyanate and a polymer polyol constituting a low segment and a single phase polyol constituting a hard segment. An ester-based, It is classified into ether type and caprolacton type.
TPU는 경도 60(Shore A)부터 95(Shore D)사이 내마모성, 탄성 , 내 완충성(Buckling Resistance), 인열(Tear), 저온에서의 유연성, 오랜 시간 동안 힘이 가해진 후의 낮은 영구적인 변형, 오일,지방, 탄화수소, 산소 그리고 오존에 대한 저항성, 미세 유기물에 대한 저항성, 내가수분해성(폴리에테르 폴리올을 사용한 경우)을 지니므로 도료, 접착제, 롤, 튜브, 자기기록매체용 바인더, 합성피혁, 필름, 성형용 시트, 자동차 핸들, 자동차 계기패널의 표피, 수영복이나 브래지어의 바스트용 컵, 전자기기의 키패드, 전자부품의 트레이, 에어 매트, 워터배드(water bed), 각종 보호케이스 등 스포츠와 레저분야를 포함한 여러 산업분야에서 다양하게 사용되고 있다.
TPU has abrasion resistance, elasticity, hardness (Buckling Resistance), tear, hardness at low hardness (Shore A) to 95 (Shore D), flexibility at low temperature, low permanent deformation after long time force, oil It is resistant to fats, hydrocarbons, oxygen and ozone, resistant to fine organics and hydrolyzed (when polyether polyols are used), so it is a binder for paints, adhesives, rolls, tubes, magnetic recording media, synthetic leather, and film. Sports and leisure sectors, such as molding sheets, car handles, skins of automotive instrument panels, bust cups for swimwear or bras, keypads for electronic devices, trays of electronic components, air mats, water beds, and various protective cases. It is used in a variety of industries, including.
본 발명은 상기와 같은 종래기술의 열가소성 폴리우레탄 필름에 전기전도성을 갖는 그래핀을 균일하게 분산시켜 전기전도적 특성이 발휘되도록 하는 그래핀을 함유하는 열가소성 폴리우레탄 필름을 제공하는데 있다The present invention is to provide a thermoplastic polyurethane film containing graphene to uniformly disperse the graphene having an electrical conductivity in the thermoplastic polyurethane film of the prior art as described above to exhibit the electroconductive properties.
또한, 본 발명의 다른 목적은 자외선 노출시에 색 변화가 없으며, 내열성 및 인장물성이 우수한 그래핀을 함유하는 열가소성 폴리우레탄 필름을 제공하는데 있다.Another object of the present invention is to provide a thermoplastic polyurethane film containing graphene having no color change when exposed to ultraviolet rays and having excellent heat resistance and tensile properties.
그러나 본 발명의 목적은 상기에 언급된 목적으로 제한되지 않으며, 언급되지 않은 다른 목적들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.
However, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.
상기한 목적을 달성하기 위한 본 발명의 특징에 따르면, According to a feature of the invention for achieving the above object,
열가소성 폴리우레탄(Thermoplastic polyurethane : TPU) 수지 펠렛 60 내지 70 중량%; 및 60 to 70% by weight of thermoplastic polyurethane (TPU) resin pellets; And
그래핀(Graphene) 분말 30 내지 40 중량%;를 용융하여 압출하고 진행방향으로 연신함으로써 얻은 것을 특징으로 하는 그래핀을 함유하는 열가소성 폴리우레탄 필름을 제공한다.Graphene (Graphene) powder 30 to 40% by weight; provides a thermoplastic polyurethane film containing graphene, characterized in that obtained by melting, extruding and stretching in the direction of progress.
이때, 본 발명의 부가적인 특징에 따르면, 상기 열가소성 폴리우레탄 수지는 유기 디이소시아네이트류, 폴리올류, 및 사슬연장제로 이루어지되,At this time, according to an additional feature of the present invention, the thermoplastic polyurethane resin is composed of organic diisocyanates, polyols, and chain extenders,
상기 유기 디이소시아네이트류는 전체 함량을 기준으로 이소포론 디이소시아네이트 20 내지 30mole%와 헥사메틸렌 디이소시아네이트 70 내지 80mole%를 혼용하고,The organic diisocyanate is mixed with 20 to 30 mole% of isophorone diisocyanate and 70 to 80 mole% of hexamethylene diisocyanate based on the total content,
상기 폴리올류는 평균분자량 1,000 내지 2,500 인 폴리카보네이트계 폴리올을 사용하며,The polyols use a polycarbonate polyol having an average molecular weight of 1,000 to 2,500,
상기 사슬연장제는 탄소수 2 내지 10의 지방족 디올을 주성분으로 하는 것이 바람직하다.
It is preferable that the said chain extender has a C2-C10 aliphatic diol as a main component.
상기와 같은 본 발명의 그래핀을 함유하는 열가소성 폴리우레탄 필름을 적용하면, 전기전도 특성을 가지게 되기 때문에 열가소성 폴리우레탄 필름의 활용분야를 확대시킬 수 있는 효과가 있다.
When applying the thermoplastic polyurethane film containing the graphene of the present invention as described above, it has the effect of extending the field of application of the thermoplastic polyurethane film because it has electrical conductivity properties.
본 발명의 바람직한 실시예를 상세히 설명하면 다음과 같다.Preferred embodiments of the present invention will be described in detail as follows.
그러나, 본 발명의 명세서에서 제시되는 실시예에 의하여 본 발명의 범위가 한정되는 것은 아니며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의하여 본 발명의 기술사상과 아래에 기재될 특허 청구범위의 균등 범위 내에서 다양한 수정 및 변형 가능한 것으로 이해되어야 할 거이다.However, it should be understood that the scope of the present invention is not limited by the embodiments set forth in the description of the present invention, and that those skilled in the art will understand that the technical idea of the present invention, It should be understood that various modifications and variations are possible within the scope of equivalence of the scope.
또한 실시예를 설명함에 있어서 본 발명이 속하는 기술 분야에 익히 알려져 있고, 본 발명과 직접적으로 관련이 없는 기술 내용에 대해서는 설명을 생략한다.Further, in describing the embodiments, descriptions of technical contents which are well known in the technical field to which the present invention belongs and which are not directly related to the present invention will be omitted.
이는 불필요한 설명을 생략함으로써 본 발명의 요지를 흐리지 않고 더욱 명확히 전달하기 위함이다.This is for the sake of clarity of the present invention without omitting the unnecessary explanation.
본 발명에 의한 그래핀을 함유하는 열가소성 폴리우레탄 필름은, 열가소성 폴리우레탄(Thermoplastic polyurethane : TPU) 수지 펠렛 60 내지 70 중량%; 및 그래핀(Graphene) 분말 30 내지 40 중량%;를 용융하여 압출하고 진행방향으로 연신함으로써 얻게 된다.Graphene-containing thermoplastic polyurethane film according to the present invention, thermoplastic polyurethane (Thermoplastic polyurethane: TPU) resin pellets 60 to 70% by weight; And graphene powder 30 to 40 wt%; obtained by melting and extruding and stretching in the advancing direction.
상기에서 열가소성 폴리우레탄 수지는, 유기 디이소시아네이트류, 폴리올류, 및 사슬연장제로 이루어지는데, 상기 유기 디이소시아네이트류는 전체 함량을 기준으로 이소포론 디이소시아네이트 20 내지 30mole%와 헥사메틸렌 디이소시아네이트 70 내지 80mole%를 혼용하고, 상기 폴리올류는 평균분자량 1,000 내지 2,500 인 폴리카보네이트계 폴리올을 사용하며, 상기 사슬연장제는 탄소수 2 내지 10의 지방족 디올을 주성분으로 하는 것이 바람직하다.The thermoplastic polyurethane resin is composed of organic diisocyanates, polyols, and chain extenders, wherein the organic diisocyanates are based on the total content of 20 to 30 mole% of isophorone diisocyanate and 70 to 80 mole of hexamethylene diisocyanate. % Is mixed and the polyols are polycarbonate-based polyols having an average molecular weight of 1,000 to 2,500, and the chain extender is preferably an aliphatic diol having 2 to 10 carbon atoms as a main component.
일반적으로 폴리우레탄의 황변현상은 열, UV, 가스 등 여러 가지 원인에 의한 것일 수 있는데, 특히 디이소시아네이트의 종류에 따라 UV 황변 영향성이 가장 크다.In general, the yellowing of polyurethane may be due to various causes such as heat, UV, gas, and the like. In particular, the effect of UV yellowing may be greatest depending on the type of diisocyanate.
많은 열가소성 폴리우레탄 수지의 경우는 내열성 측면 및 탄성적인 측면에서 방향족 디이소시아네이트류를 사용하는데 이는 자외선에 의해 퀴논 이미드(quinon imide) 구조를 갖게 되어 황변이 일어난다. 황변에 대한 영향을 고려하여 디이소시아네이트류로 헥사메틸렌 디이소시아네이트를 사용하는 경우에는 내변색성 측면에서는 유리하나 소프트한 터치감에서 떨어진다. 또한 경도가 떨어져 내구성 측면에서 불리할 수 있다.Many thermoplastic polyurethane resins use aromatic diisocyanates in terms of heat resistance and elasticity, which have a quinon imide structure due to ultraviolet rays, resulting in yellowing. When hexamethylene diisocyanate is used as the diisocyanate in consideration of the effect on yellowing, it is advantageous in terms of discoloration resistance but falls in soft touch. In addition, hardness may be disadvantageous in terms of durability.
상기와 같은 점을 고려하여, 디이소시아네이트로서 1,6-헥사메틸렌 디이소시아네이트와 함께 이소포론 디이소시아네이트를 혼용하는 것이 바람직하다. 이때 바람직하기로는 이소포론 디이소시아네이트와 1,6-헥사메틸렌 디이소시아네이트를 디이소시아네이트류 전체 함량을 기준으로 각각 10 내지 50mole% 및 50 내지 90mole%로 혼용하는 것이 인장강도, 모듈러스 및 소프트한 촉감을 구현할 수 있으며 적절한 내구성을 만족할 수 있는 측면에서 바람직할 수 있다.In view of the above, it is preferable to mix isophorone diisocyanate with 1,6-hexamethylene diisocyanate as diisocyanate. In this case, it is preferable to mix isophorone diisocyanate and 1,6-hexamethylene diisocyanate at 10 to 50 mole% and 50 to 90 mole%, respectively, based on the total content of the diisocyanates to achieve tensile strength, modulus, and soft touch. It may be desirable in terms of being able to satisfy the appropriate durability.
내구성 측면에서 더욱 좋기로는 이소포론 디이소시아네이트 20 내지 30mole%와 헥사메틸렌 디이소시아네이트 70 내지 80mole%를 혼용하는 것이다.More preferably in terms of durability, 20 to 30 mole% of isophorone diisocyanate and 70 to 80 mole% of hexamethylene diisocyanate are mixed.
또한, 폴리올로서 폴리카프로락톤계 폴리올 또는 폴리카보네이트계 폴리올을 사용할 수 있는데, 폴리카보네이트계 폴리올을 사용하는 것이 바람직하다.In addition, a polycaprolactone polyol or a polycarbonate polyol may be used as the polyol, but a polycarbonate polyol is preferably used.
폴리올의 바람직한 평균분자량은 800 내지 4,000 이며, 더욱 바람직하게는 1,000 내지 2,500 인 것이 유연성 측면에서 유리할 수 있다.The preferred average molecular weight of the polyol is 800 to 4,000, more preferably 1,000 to 2,500 may be advantageous in terms of flexibility.
한편 사슬연장제로는 탄소수 2 내지 10의 지방족 디올을 주성분으로 할 수 있는데, 기계적 강도 측면에서 1,4-부탄디올을 사용하는 것이 바람직하다.On the other hand, the chain extender may be an aliphatic diol having 2 to 10 carbon atoms as a main component, it is preferable to use 1,4-butanediol in terms of mechanical strength.
사슬연장제의 사용량은 경도를 고려하여 조절할 수 있는데, 폴리올류 대비하여 사슬연장제의 비율이 증가할수록 경도가 높아지므로 요구되는 경도에 따라서 사슬연장제의 사용 비율을 조절하는 것이 바람직하다.The amount of the chain extender can be adjusted in consideration of hardness. Since the hardness increases as the ratio of the chain extender to the polyol increases, it is preferable to adjust the use ratio of the chain extender according to the required hardness.
한편, 그래핀(Graphene)은 탄소가 육각형의 형태로 서로 연결되어 벌집 모양의 2차원 평면 구조를 이루는 물질로서, 그 두께가 매우 얇고 투명하며 전기 전도성이 매우 큰 특성을 가진다. 그래핀의 이러한 특성을 이용하여 그래핀을 투명 디스플레이 또는 휘어질 수 있는 디스플레이에 적용하려는 시도가 많이 이루어지고 있으며, 최근에는 그래핀을 대형으로 합성하려는 시도가 활발히 이루어지고 있다.Meanwhile, graphene is a material in which carbon is connected to each other in a hexagonal shape to form a honeycomb two-dimensional planar structure, and its thickness is very thin, transparent, and has great electrical conductivity. Attempts have been made to apply graphene to transparent displays or warpable displays using these properties of graphenes, and in recent years, attempts have been made to synthesize graphene in large quantities.
그래핀은 일반적으로 금속촉매를 이용한 화학기상증착법(Chemical vapor deposition)에 의해서 합성되며, 금속촉매의 상부에 형성된다. 이렇게 형성된 그래핀은 사용하고자하는 최종 제품에 따라서 다양한 방법으로 전사되며, 연성회로기판과 같은 기판에 부착된다.Graphene is generally synthesized by chemical vapor deposition using a metal catalyst and formed on top of the metal catalyst. The graphene thus formed is transferred in various ways depending on the final product to be used and attached to a substrate such as a flexible printed circuit board.
그래핀을 기판에 전사하기 위한 매개체로서 통상적으로 그래핀 전사필름이 사용되는데, 그래핀 전사필름은 캐리어 필름의 일면에 그래핀이 부착된 것이다. 즉 그래핀 전사필름의 그래핀이 형성된 면을 기판에 접촉시켜 그래핀을 기판에 접착시킨 후 캐리어 필름만을 떼어내는 방법으로 그래핀이 기판에 최종적으로 전사된다.A graphene transfer film is typically used as a medium for transferring graphene onto a substrate, and the graphene transfer film has graphene attached to one surface of a carrier film. That is, the graphene is finally transferred to the substrate by contacting the surface on which the graphene is formed on the graphene transfer film with the substrate, adhering the graphene to the substrate, and removing only the carrier film.
상기와 같은 열가소성 폴리우레탄 수지의 펠렛과 그래핀의 분말을 혼합 용융하여 압출하고 진행방향으로 연신함으로써 본 발명에 의한 그래핀을 함유하는 열가소성 폴리우레탄 필름을 얻을 수 있다.The thermoplastic polyurethane film containing the graphene according to the present invention can be obtained by mixing, melting, extruding and extruding the pellets of the thermoplastic polyurethane resin and the graphene powder as described above.
이때, 그래핀을 균일하게 분산시키기 위하여 열가소성 폴리우레탄 수지의 펠렛과 그래핀의 분말에 대하여 비비기를 수행한 후 용융시키는 것이 바람직하다.At this time, in order to uniformly disperse the graphene, it is preferable to perform a rubbing on the pellet of the thermoplastic polyurethane resin and the powder of the graphene and then melt.
상기 얻어진 그래핀을 함유하는 열가소성 폴리우레탄 필름은 전기전도 특성을 가지게 됨으로써 다양한 분야에 적용이 가능할 것으로 기대된다.The thermoplastic polyurethane film containing the obtained graphene is expected to be applicable to various fields by having electrical conductivity properties.
Claims (2)
그래핀(Graphene) 분말 30 내지 40 중량%;를 용융하여 압출하고 진행방향으로 연신함으로써 얻은 것을 특징으로 하는 그래핀을 함유하는 열가소성 폴리우레탄 필름.
60 to 70% by weight of thermoplastic polyurethane (TPU) resin pellets; And
Graphene (Graphene) powder 30 to 40% by weight; a thermoplastic polyurethane film containing graphene, characterized in that obtained by melting, extruding and stretching in the advancing direction.
상기 열가소성 폴리우레탄 수지는 유기 디이소시아네이트류, 폴리올류, 사슬연장제로 이루어지되,
상기 유기 디이소시아네이트류는 전체 함량을 기준으로 이소포론 디이소시아네이트 20 내지 30mole%와 헥사메틸렌 디이소시아네이트 70 내지 80mole%를 혼용하고,
상기 폴리올류는 평균분자량 1,000 내지 2,500 인 폴리카보네이트계 폴리올을 사용하며,
상기 사슬연장제는 탄소수 2 내지 10의 지방족 디올을 주성분으로 하는 것을 특징으로 하는 그래핀을 함유하는 열가소성 폴리우레탄 필름.The method of claim 1,
The thermoplastic polyurethane resin is composed of organic diisocyanates, polyols, chain extenders,
The organic diisocyanate is mixed with 20 to 30 mole% of isophorone diisocyanate and 70 to 80 mole% of hexamethylene diisocyanate based on the total content,
The polyols use a polycarbonate polyol having an average molecular weight of 1,000 to 2,500,
The chain extender is a thermoplastic polyurethane film containing graphene, characterized in that the main component is an aliphatic diol having 2 to 10 carbon atoms.
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| WO2017037642A1 (en) * | 2015-09-03 | 2017-03-09 | Windtex Vagotex S.P.A | Process for making a graphene-based multi-layer polyurethane membrane |
| CN106519636A (en) * | 2016-11-02 | 2017-03-22 | 广东顺德艺冠云膜科技股份有限公司 | Phytene soft touch film, preparation method and application thereof |
| CN106832210A (en) * | 2017-01-24 | 2017-06-13 | 南京科孚纳米技术有限公司 | A kind of preparation method of Graphene modified elastomer polyurethane |
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| EP3871926A1 (en) | 2020-02-27 | 2021-09-01 | CpK Interior Products Inc. | Urethane and graphene interior trim panel |
| US11878635B2 (en) | 2020-09-18 | 2024-01-23 | Cpk Interior Products Inc. | Graphene-based antiviral polymer |
| WO2022127069A1 (en) * | 2020-12-14 | 2022-06-23 | 何建雄 | Low-shrinkage tpu film and preparation method therefor |
| CN112745657A (en) * | 2021-01-26 | 2021-05-04 | 福州大学 | Anti-slip thermoplastic polyurethane composite material and preparation method thereof |
| KR20230015557A (en) * | 2021-07-23 | 2023-01-31 | (주) 파오드 | Mask device for facial skin care in which the inner mask is made of graphene composite material |
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