KR101882817B1 - 감압점착제 및 이를 포함하는 전자파 차폐 및 방열복합시트 - Google Patents
감압점착제 및 이를 포함하는 전자파 차폐 및 방열복합시트 Download PDFInfo
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- KR101882817B1 KR101882817B1 KR1020170083574A KR20170083574A KR101882817B1 KR 101882817 B1 KR101882817 B1 KR 101882817B1 KR 1020170083574 A KR1020170083574 A KR 1020170083574A KR 20170083574 A KR20170083574 A KR 20170083574A KR 101882817 B1 KR101882817 B1 KR 101882817B1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
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- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B2457/08—PCBs, i.e. printed circuit boards
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- C09J2201/606—
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- C09J2201/622—
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
도 2는 본 발명의 전자파 차폐 및 방열복합시트를 구성하는 다수개의 관통홀이 구비된 그라파이트층의 바람직한 일구현예에 대한 개략도이다.
도 3의 (a) 및 (b)는 제1접착제층 및/또는 제2접착제층으로부터 유래하는 접착성분이 그라파이트층의 관통홀 내에 충진된 형태에 대한 개략도이다.
도 4는 본 발명의 바람직한 구체적인 일구현예로서, 본 발명의 전자파 차폐 및 방열복합시트에 사용되는 그라파이트 시트의 개략도이다.
10 : 그라파이트층
20 : 전자파 차폐층
30 : 제1 접착제층
40 : 제2 접착제층
50 : 지지체층
60 : 감압점착제층
Claims (15)
- 전자파 차폐층; 제1접착제층; 다수개의 관통홀이 구비된 그라파이트층; 제2접착제층; 지지체층; 및 감압점착제층; 이 순차대로 적층되고,
상기 감압점착제층은 유리전이온도가 -50℃ ~ -40℃인 아크릴 중합체 100 중량부에 대하여, 연화점이 130℃ ~ 142℃, 중량평균분자량이 500 ~ 3,000인 고온점착강화수지 23 ~ 27 중량부를 포함하고,
상기 아크릴 중합체는 하기 화학식 1로 표시되는 화합물을 포함하며,
상기 고온점착강화수지는 하기 화학식 2로 표시되는 화합물을 포름알데히드 및 페놀에서 선택된 1종 이상과 반응시켜 개질된 반응화합물을 포함하는 것을 특징으로 하는 전자파 차폐 및 방열복합시트;
[화학식 1]
상기 화학식 1에 있어서, R1은 -H 또는 C1 ~ C3의 알킬기, R2는 C3 ~ C5의 알킬기, R3은 -H, -OH 또는 C1 ~ C2의 알콕시기이고, n은 중량평균분자량 45만 내지 55만을 만족하는 유리수이며,
[화학식 2]
상기 화학식 2에 있어서, R4는 C1 ~ C4의 알킬기, R5는 -H 또는 C1 ~ C4의 알킬기, R6은 -H 또는 C1 ~ C5의 알킬기이고, R7 및 R8은 각각 독립적으로 카복실기, 알코올기 또는 C1 ~ C4의 알킬기이다.
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- 제1항에 있어서,
상기 감압점착제층은 경화제를 더 포함하고,
상기 경화제는 에폭시 경화제 및 아크릴 경화제에서 선택된 1종 이상을 포함하고,
상기 경화제는 아크릴 중합체 100 중량부에 대하여, 0.13 ~ 0.25 중량부를 포함하는 것을 특징으로 하는 전자파 차폐 및 방열복합시트.
- 제1항에 있어서,
상기 감압점착제층은 실란 커플링제를 더 포함하고,
상기 실란 커플링제는 아크릴 중합체 100 중량부에 대하여, 0.0001 ~ 0.002 중량부를 포함하는 것을 특징으로 하는 전자파 차폐 및 방열복합시트.
- 제1항에 있어서,
상기 감압점착제층은 KS T1028 규격에 의거하여, 폼 테이프와의 점착강도 측정시, 25℃의 온도에서 0.70 ~ 1.0 kgf/inch, 85℃의 온도에서 0.7 ~ 1.2 kgf/inch인 것을 특징으로 하는 전자파 차폐 및 방열복합시트.
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- 제1항에 있어서,
상기 그라파이트층의 관통홀 내부는 제1접착제층 및 제2접착제층으로부터 유래한 접착제로 충진되어 있는 것을 특징으로 하는 전자파 차폐 및 방열복합시트.
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- 제1전자파 차폐층, 제1접착제층, 다수개의 관통홀이 구비된 그라파이트층, 제2접착제층, 지지체층 및 감압점착제층이 차례대로 적층시킨 적층체를 핫프레스 장비에 투입하는 1단계;
145℃ ~ 160℃ 및 45 ~ 60 kgf/㎠ 압력 하에서 50분 ~ 70분간 적층체를 가열 및 가압시키는 2단계; 및
핫프레스를 냉각시킨 후, 핫프레스로부터 일체화된 복합시트를 분리하는 3단계; 를 포함하고,
상기 감압점착제층은 유리전이온도가 -50℃ ~ -40℃인 아크릴 중합체 100 중량부에 대하여, 연화점이 130℃ ~ 142℃, 중량평균분자량이 500 ~ 3,000인 고온점착강화수지 23 ~ 27 중량부를 포함하고,
상기 아크릴 중합체는 하기 화학식 1로 표시되는 화합물을 포함하며,
상기 고온점착강화수지는 하기 화학식 2로 표시되는 화합물을 포름알데히드 및 페놀에서 선택된 1종 이상과 반응시켜 개질된 반응화합물을 포함하는 것을 특징으로 하는 전자파 차폐 및 방열복합시트의 제조방법;
[화학식 1]
상기 화학식 1에 있어서, R1은 -H 또는 C1 ~ C3의 알킬기, R2는 C3 ~ C5의 알킬기, R3은 -H, -OH 또는 C1 ~ C2의 알콕시기이고, n은 중량평균분자량 45만 내지 55만을 만족하는 유리수이며,
[화학식 2]
상기 화학식 2에 있어서, R4는 C1 ~ C4의 알킬기, R5는 -H 또는 C1 ~ C4의 알킬기, R6은 -H 또는 C1 ~ C5의 알킬기이고, R7 및 R8은 각각 독립적으로 카복실기, 알코올기 또는 C1 ~ C4의 알킬기이다.
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| KR102221812B1 (ko) * | 2019-09-05 | 2021-03-02 | 전태구 | 팽창흑연시트를 이용한 열전도성 시트 및 이의 제조방법 |
| US11240933B2 (en) | 2019-02-19 | 2022-02-01 | Samsung Display Co., Ltd. | Heat radiation sheet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11240933B2 (en) | 2019-02-19 | 2022-02-01 | Samsung Display Co., Ltd. | Heat radiation sheet |
| KR102221812B1 (ko) * | 2019-09-05 | 2021-03-02 | 전태구 | 팽창흑연시트를 이용한 열전도성 시트 및 이의 제조방법 |
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