KR20060125999A - Static shielding film(polyethylene) manufacturing method for in order to be dispersed high quality electronic components packaging bags - Google Patents

Static shielding film(polyethylene) manufacturing method for in order to be dispersed high quality electronic components packaging bags Download PDF

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KR20060125999A
KR20060125999A KR1020050047537A KR20050047537A KR20060125999A KR 20060125999 A KR20060125999 A KR 20060125999A KR 1020050047537 A KR1020050047537 A KR 1020050047537A KR 20050047537 A KR20050047537 A KR 20050047537A KR 20060125999 A KR20060125999 A KR 20060125999A
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film
raw material
manufacturing
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high quality
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이성규
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엘엔케이 인더스트리(주)
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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
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/06—Coating with compositions not containing macromolecular substances
    • 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
    • C08L23/02—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
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • 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
    • C08K2201/017—Additives being an antistatic agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/04—Antistatic
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Wrappers (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Provided is a method for producing a polyethylene film for a packaging bag of precision electronic appliances, which allows various additives such as an anti-static agent to be dispersed uniformly in the film by adding resins and additives in an optimized amount. The method for producing a polyethylene film(S11) as a high-quality anti-static film comprises a step of controlling the size of a mixer for blending resins as raw materials for the PE film and various additives such as an anti-static agent (S10) so that the resins and the additives(S12) are dispersed uniformly in the film. In addition to the size of a mixer, the size and speed of a mixing blade, and the mixing time are controlled. Otherwise, the speed under which the resins and the additives pass through a screw tube, heating temperature and air pressure in a rotating dice, or the speed of a roller for drawing the film may be controlled.

Description

정밀 전자제품 포장용 백(Bag) 필름(Polyethylene) 제조 방법에 있어 필름에 대전방지제등 각종 첨가제들이 고르게 분산 되도록 하는 제조기술{Static Shielding Film(Polyethylene) Manufacturing Method for in order to be dispersed High Quality Electronic Components Packaging Bags}Static Shielding Film (Polyethylene) Manufacturing Method for in order to be dispersed High Quality Electronic Components Packaging Bags}

도 1은 정밀 전자제품 포장용 백(Bag) 제조 시 원료구성에 있어 레진과 첨가제의 혼합 구성도.1 is a mixed configuration of the resin and additives in the raw material configuration in the manufacture of a precision electronic packaging bag (bag).

도 2는 정밀 전자제품 포장용 백(Bag)있어 일정한 비율로 분포가 되도록 혼합하여 제조라인 구조도.Figure 2 is a manufacturing line structure diagram by mixing so that the distribution of the electronic packaging bag (Precision) at a constant rate.

도 3은 정밀 전자제품 포장용 백(Bag) 제조 시 원료혼합에 있어 레진과 각종 첨가제들 혼합하는 혼합기내부 구조도.Figure 3 is an internal structure diagram of a mixer for mixing the resin and various additives in the mixing of raw materials in the manufacture of a precision electronic packaging bag (bag).

기능성이 요구되는 정밀 전자제품 포장용 백(Bag) 필름(Polyethylene) 제조 방법으로 원료 레진(S10)과 각종 첨가제의 혼합에 있어 비중과 성상이 다른 각각의 원료들의 양과 비율 및 혼합 속도를 조절함으로써 필름 내, 외부에 고르게 분포되도록 제조하여 재질 전체 부위에 첨가제의 기능을 갖게 제조하여 그 기능을 극대화 함을 목적으로 한다.It is a method of manufacturing a bag film (Polyethylene) for precision electronics that requires functionality. It controls the amount, ratio and mixing speed of each raw material having different specific gravity and properties in mixing the raw material resin (S10) and various additives. In order to maximize the function, it is manufactured to be distributed evenly on the outside to have the function of additives in the whole part of the material.

본 발명은 일반적으로 전자 부품의 포장용으로 사용되는 정전기 방지를 하기 위해 PE필름 표면에 정전기 방지용 재료(S12)를 코팅하여 만들어진 라미네이트 필름을 사용한다.The present invention generally uses a laminate film made by coating an antistatic material (S12) on the surface of the PE film in order to prevent static electricity used for packaging of electronic components.

이러한 방식에서 발전한 제조기술이 원단 필름 제조 시 내부에 정전기 방지제원료(S12)를 첨가 하여 한 단계 제조공정을 줄일 수 있도록 발전했다.The manufacturing technology developed in this way has been developed to reduce the manufacturing process by one step by adding an antistatic agent material (S12) inside the fabric film manufacturing.

이렇게 발전된 방식에 있어 필름원재료 레진(S10)과 대전방지제(S12)등 원자재가 고르게 혼합되어야 전자 부품의 포장용 필름으로 적합하다고 할 수 있다.In this way, the raw materials such as the film raw material resin (S10) and the antistatic agent (S12) should be evenly mixed to be suitable as a packaging film for electronic components.

일반적으로 이러한 필름의 제조 공정을 보면 원재료와 각종 첨가제들이 원료 혼합기에서 섞여서 압출 성형기로 보내지는데 생산효율의 측면에서 접근되어 원료혼합기(32)도 50KG 이상 크게 제작되고 원료의 양 또한 상당량 이상의 원료를 투입시켜 혼합하여 제조한다. In general, in the manufacturing process of such a film, raw materials and various additives are mixed in a raw material mixer and sent to an extrusion molding machine. From the standpoint of production efficiency, the raw material mixer 32 is also manufactured to be larger than 50KG, and the amount of raw material is also added to the raw material. It is made by mixing.

원료 혼합의 과정에 있어 인력의 소모나 원가를 낮추기 위해 전체량을 한번에 투입하도록 공정이 되어있지만 필름원료 레진(S10)과 대전방지제(S12)의 성상이 다르기 때문에 요구된 시간 이상을 혼합하게 되면 오히려 배합원료들이 고르게 분산되지 않아 원단필름 제조 후 일정하고 고르게 첨가제들의 기능을 할 수 없어 필름 내, 외부로부터의 정전기를 차단하는 기능을 발휘할 수 없게 되어있다.In the process of raw material mixing, the entire amount is injected at once in order to reduce the consumption or cost of manpower. However, if the film material resin (S10) and the antistatic agent (S12) are different in properties, they are mixed more than the required time. Since the blended raw materials are not evenly distributed, it is impossible to function uniformly and evenly after the production of the original film, thus preventing the function of blocking static electricity from inside and outside the film.

또한 배합된 원료들은 스크류 방식의 일정한 관(B28)을 통과하여 압출성형기로 보내지고 이 배합원료들이 필름(S11)상태로 성형되어 1, 2차로라 모터의 속도로 두께 및 크기가 결정되는 것이다.In addition, the blended raw materials are passed through a screw-type constant pipe (B28) is sent to the extruder and the blended raw materials are molded in the state of the film (S11) to determine the thickness and size at the speed of the first and second motors.

이 과정에서도 필름 원료레진(S10)과 각종 첨가제들이 잘 퍼져 나갈 수 있도록 최적의 조절이 필요하나 이러한 조절 값이 부 적절하게 제조되어 정밀전자제품 포장제로 사용하였을 때 필름 전체에 고르게 대전방지가 분산되지 않아 외부로부터의 정전기가 포장제 내부에 유입되어 제품을 손상 시키게 된다.In this process, the optimal control is necessary to spread the film raw material (S10) and various additives well, but when these control values are improperly manufactured and used as a precision electronics packaging agent, antistatic is not evenly distributed throughout the film. As a result, static electricity from the outside enters the package and damages the product.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위하여 창작된 것으로서, 원료레진(S10)과 대전 방지제(S12)의 혼합에 있어 혼합기 크기를 제한하며 비중과 성상이 다른 각각의 원료들의 양과 비율 및 혼합 속도를 조절하고 가공공정에 있어 그 처리온도와 속도와 압력을 조절함으로써 첨가제들 이 필름 내, 외부에 고르게 분포되도록 제조하여 재질 전체 부위에 첨가제의 기능을 갖게 제조하여 그 기능을 제공하는데 목적으로 한다.Therefore, the present invention was created in order to solve the above problems, limiting the size of the mixer in the mixing of the raw material resin (S10) and the antistatic agent (S12), the amount and ratio and mixing speed of each raw material is different in specific gravity and properties By adjusting the temperature and speed and pressure in the processing process, the additives are manufactured to be distributed evenly in and out of the film to have the function of additives in the entire part of the material to provide the function.

제조 공정을 설명하면 다음과 같다.The manufacturing process is as follows.

도1과 같이 PE 필름(S11)의 제조 시 원료 레진(S10)에 정전기 방지제(S12)등 첨가제의 원료들을 혼합할 수 있게 하려면 도 3과 같이 혼합기(32)의 크기를 50Kg 이하의 용량으로 제한하고 원료레진(S10)과 대전방지제(S12) 비율을 100:8 로 하며 혼합기 칼1(35), 혼합기 칼2(36)는 각각 15-25Cm의 간격을 두되 교차되게 장착하며 칼날의 두께는 3mm, 날의 폭은 5Cm, 길이는 혼합기(32)와 내부 면에서 1Cm 이상 떨어지게 하고 날의 각도는 20도가 되게 하여 날의 회전 속도는 분당 100회전 이하로 하며 원료혼합의 시간은 4-6분 제한하여 혼합한다.In order to be able to mix the raw materials of the additives such as the antistatic agent (S12) to the raw material resin (S10) during the manufacture of the PE film (S11) as shown in Figure 1 limit the size of the mixer 32 to 50Kg or less as shown in FIG. The ratio of the raw material resin (S10) and the antistatic agent (S12) is 100: 8, and the mixer knives 1 (35) and the mixer knives 2 (36) are mounted at intervals of 15-25 cm, but cross each other. , The blade width is 5Cm, the length is 1Cm or more apart from the mixer 32 and the inner surface, the blade angle is 20 degrees, the blade rotation speed is less than 100 revolutions per minute, and the mixing time of the raw material is limited to 4-6 minutes To mix.

이 혼합된 원료를 도 2와 같이 원료 자동호퍼(B24)에 투입하여 스크류 방식의 관(B28)으로 통과 시키며 이때 원료속도를 1차 인버터 모터(B29)에서 분당 800RPM-1500RPM으로 조절하고 이 원료가 1차 다이스(B27)와 2차 다이스(B26)로 들어가며 이때 회전 다이스히터의 온도는 100-200도씨로 조절하고 에어 링(B23)에서 2마력의 공기로 냉각시켜 주고 300RPM-600RPM으로 2차 인버터 모터(B30)에서 원단필름을 당겨주고 필름 외부는 권취기 로울러(B21)로 잡아주고 최종 원단을 300RPM-600RPM으로 3차 인버터 모터(B31)의 속도로 당겨 최종 로울러(B25)에 감는다.This mixed raw material is introduced into the raw material automatic hopper (B24) as shown in FIG. 2 and passed through a screw-type pipe (B28). At this time, the raw material speed is adjusted to 800 RPM-1500 RPM per minute by the primary inverter motor (B29). Enter the primary die (B27) and the secondary die (B26), at which time the temperature of the rotating die heater is adjusted to 100-200 degrees Celsius, cooled by 2 hp air in the air ring (B23), and the secondary at 300RPM-600RPM. Pull the original film from the inverter motor (B30), the outside of the film to the take-up roller (B21) and pull the final raw material at the speed of the tertiary inverter motor (B31) to 300RPM-600RPM to wind the final roller (B25).

상기 내용으로 원단 필름을 제조해야 정밀 전자부품 포장용 백(Bag) 필름(Polyethylene) 제조 필름에 대전방지제등 각종 첨가제들이 고르게 분산되어 기능을 달성할 수 있는 것이다.When the fabric film is manufactured with the above contents, various additives such as an antistatic agent are uniformly dispersed in the film for manufacturing a bag film for manufacturing precision electronic components.

이상 전술한 본 발명의 바람직한 실시 예는 예시의 목적을 위해 개시된 것으로, 당업자라면, 이에 첨부된 특허청구 범위에 개시된 본 발명의 기술적 사상과 그 기술적 범위 내에서 또 다른 다양한 실시 예들을 개량, 변경, 치환, 대체 또는 부가 등이 가능할 것이다.Preferred embodiments of the present invention described above are for the purpose of illustration, those skilled in the art to improve, change, other various embodiments within the spirit and technical scope of the present invention disclosed in the appended claims Substitution, replacement or addition may be possible.

이상에서 상술한 바와 같이 본 발명은 정밀 전자부품 포장용 백(Bag) 필름(Polyethylene) 제조 방법에 있어 필름(S11)에 대전방지제(S12)등 각종 첨가제들이 고르게 분산 되도록 하는 제조 하는데 있어 정밀전자제품 포장제로 사용하였을 때 특히 필름의 내, 외면의 정전기 저항지수가 일정하게 조절되어 정전기가 제품 쪽으로 유입될 수 없도록 하여 제품 보호기능을 향상시켜 정전기로부터 제품을 보호하 게 되는 매우 유용한 발명인 것이다.As described above, the present invention provides a precision electronic product packaging in manufacturing various additives such as an antistatic agent (S12) in the film S11 in a method of manufacturing a precision electronic component packaging bag film. When zero is used, it is a very useful invention that protects the product from static electricity by improving the product protection function by preventing static electricity from flowing into the product by adjusting the static resistance index of the inside and outside of the film in particular.

Claims (5)

고품질의 정전기 방지 필름을 만드는데 있어서 , PE필름의 원료 레진과 대전방지제등 각종 첨가제들이 필름전체에 고르게 분포 되도록 하기위해 원료 배합 혼합기의 크기를 제한하여 생산하는 제조기술.In manufacturing high quality antistatic film, manufacturing technology that produces limited amount of raw material mixing mixer in order to distribute various additives such as raw material resin and antistatic agent of PE film evenly throughout the film. 청구1항에 있어 혼합기에서 혼합칼날의 크기와 속도와 혼합시간을 제한하여 생산하는 제조기술.The production technology according to claim 1, which produces a mixing blade with a limited size, speed, and mixing time. 고품질의 정전기 방지 필름을 만드는데 있어서 , PE필름의 원료 레진과 대전방지제등 각종 첨가제들이 필름전체에 고르게 분포 되도록 하기위해 스크류 관을 통과하는 원료의 속도를 제한하여 생산하는 제조기술.In manufacturing high quality antistatic film, manufacturing technology that limits the speed of the raw material passing through the screw pipe in order to distribute various additives such as raw material resin and antistatic agent of PE film evenly. 고품질의 정전기 방지 필름을 만드는데 있어서 , PE필름의 원료 레진과 대전방지제등 각종 첨가제들이 필름전체에 고르게 분포 되도록 하기위해 압출성형기 회전 다이스에서 히팅 온도와 에어압력을 조절하여 생산하는 제조기술.In manufacturing high quality antistatic film, manufacturing technology that controls heating temperature and air pressure in rotating die of extrusion machine in order to distribute evenly various additives such as raw material resin and antistatic agent of PE film. 고품질의 정전기 방지 필름을 만드는데 있어서 , PE필름의 원료 레진과 대전방지제등 각종 첨가제들이 필름전체에 고르게 분포 되도록 하기위해 압출성형기 회전 다이스에서 나온 필름을 당겨주는 1, 2, 3차 로울러의 속도를 조절하여 제조하 는 기술.In making high quality antistatic film, it controls the speed of 1st, 2nd and 3rd roller which pulls the film from the rotating die of extruder in order to distribute the additives such as raw material resin and antistatic agent of PE film evenly throughout the film. Manufactured by
KR1020050047537A 2005-06-03 2005-06-03 Static shielding film(polyethylene) manufacturing method for in order to be dispersed high quality electronic components packaging bags KR20060125999A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140003740A (en) 2012-06-26 2014-01-10 (주)티엔에프 An coating solution using preventing breathablity film for electrionic part
KR20190031726A (en) 2017-09-18 2019-03-27 (주)티엔에프 An coating solution using preventing breathablity film for electrionic part within cellulose nano-fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140003740A (en) 2012-06-26 2014-01-10 (주)티엔에프 An coating solution using preventing breathablity film for electrionic part
KR20190031726A (en) 2017-09-18 2019-03-27 (주)티엔에프 An coating solution using preventing breathablity film for electrionic part within cellulose nano-fiber

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