KR102381488B1 - 열프레스용 쿠션재 및 그 제조 방법 - Google Patents
열프레스용 쿠션재 및 그 제조 방법 Download PDFInfo
- Publication number
- KR102381488B1 KR102381488B1 KR1020197031267A KR20197031267A KR102381488B1 KR 102381488 B1 KR102381488 B1 KR 102381488B1 KR 1020197031267 A KR1020197031267 A KR 1020197031267A KR 20197031267 A KR20197031267 A KR 20197031267A KR 102381488 B1 KR102381488 B1 KR 102381488B1
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- South Korea
- Prior art keywords
- rubber
- fiber material
- sheet
- fiber
- hot press
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B29C43/32—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
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- B30B15/061—Cushion plates
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- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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Abstract
Description
도 2는 본 발명의 한 실시 형태에 관한 열프레스용 쿠션재의 제조 방법을 설명하기 위한 도해도(圖解圖).
도 3은 도 2에 도시하는 프레스 공정 후에 얻어지는 복합체의 도해적 단면도.
도 4는 열팽창성 마이크로캡슐 배합 불소고무 시트와 2장의 글라스 페이퍼를 일체화시키기 전의 도해적 단면도.
도 5는 실시례 샘플(1)의 적층 구조를 도시하는 도해적 단면도.
도 6은 비교례 샘플(1)의 적층 구조를 도시하는 도해적 단면도.
도 7은 비교례 샘플(2)의 적층 구조를 도시하는 도해적 단면도.
도 8은 비교례 샘플(4)의 적층 구조를 도시하는 도해적 단면도.
도 9는 비교례 샘플(5)의 도해적 단면도.
도 10은 샘플의 요철 추종성을 평가하기 위한 프레스 구성을 도시하는 도해적 단면도.
도 11은 평가 대상 샘플에 대한 프레스 1회 후의 폴리이미드 필름의 단차부의 사진.
도 12는 평가 대상 샘플에 대한 프레스 50회 후의 폴리이미드 필름의 단차부의 사진.
도 13은 도 5에 도시한 구조의 실시례 샘플(1)의 단면 사진.
도 14는 도 13에 도시되어 있는 섬유-고무 복합체 시트의 두께방향의 확대 단면 사진.
도 15는 도 13에 도시되어 있는 섬유-고무 복합체 시트의 평면방향의 확대 단면 사진.
도 16은 비교례 샘플(3)의 섬유-고무 복합체 시트의 평면방향의 확대 사진.
도 17은 바람직한 섬유 시트의 한 예로서의 글라스 페이퍼의 표면 사진.
도 18은 도 17의 확대 사진.
도 19는 본 발명의 다른 실시 형태에 관한 열프레스용 쿠션재의 도해적 단면도.
도 20은 도 19에 도시한 열프레스용 쿠션재의 제조 방법을 설명하기 위한 도해도.
도 21은 도 19에 도시한 구조의 실시례 샘플의 단면 사진.
도 22는 평가 대상 샘플에 대한 프레스 후의 폴리이미드 필름의 단차부의 사진으로, 도 5에 도시한 구조의 실시례 샘플(1)과 도 19에 도시한 구조의 실시례 샘플(5)을 비교하여 도시하는 사진.
2 : 고무
3 : 독립기공
10 : 섬유재료 시트
20 : 미가황 고무 시트
21 : 미가황 고무
30 : 열팽창성 마이크로캡슐
40 : 열팽창성 마이크로캡슐 배합 미가황 불소고무 시트
41 : 글라스 페이퍼
50 : 섬유-고무 복합체 시트
51 : 불소고무 시트
52 : 불소 필름
60 : 섬유-고무 복합체 시트
61 : 불소고무 시트
62 : 불소 필름
70 : 섬유-고무 복합체 시트
71 : 아라미드 크로스
72 : 불소고무
73 : 불소 필름
80 : 크래프트 페이퍼를 겹친 적층체
81 : 열가소성 필름
90 : 불소고무 시트
91 : 독립기공
100 : 기대
101 : 가압부
102 : 쿠션재
103 : 스테인리스판
104 : 스페이서
105 : 이형 필름
106 : 접착제 부착 폴리이미드 필름
107 : 평가 대상 샘플
108 : 스테인리스판
109 : 쿠션재
120 : 열프레스용 쿠션재
121 : 섬유 고무 복합층
122 : 상부 고무층
123 : 하부 고무층
124 : 상부 불소 필름
125 : 하부 불소 필름
Claims (14)
- 랜덤하게 배향한 다수개의 섬유로 이루어지는 섬유재료와,
상기 섬유재료의 섬유 사이의 공극에 들어간 고무와,
상기 고무 중에 분산되어 존재하는 독립기공을 구비하고,
상기 섬유재료의 섬유 사이의 공극에 들어간 고무에 대한 상기 섬유재료의 체적비율이, 1/15 이상, 1/7.5 미만이고,
상기 독립기공은, 주위가 완전히 봉쇄된 독립 기포인 것을 특징으로 하는 열프레스용 쿠션재. - 제1항에 있어서,
상기 열프레스용 쿠션재의 기공률이, 체적 기준으로, 15∼70%인 것을 특징으로 하는 열프레스용 쿠션재. - 제1항 또는 제2항에 있어서,
상기 독립기공은, 상기 고무 중에 분산 배치된 열팽창성 마이크로캡슐이 팽창하여 형성된 것을 특징으로 하는 열프레스용 쿠션재. - 제1항 또는 제2항에 있어서,
상기 섬유재료는, 글라스, 로크울, 탄소, 폴리벤자졸, 폴리이미드, 방향족 폴리아미드 및 폴리아미드로 이루어지는 군에서 선택된 1종 또는 2종 이상의 재료를 포함하는 것을 특징으로 하는 열프레스용 쿠션재. - 제1항 또는 제2항에 있어서,
상기 고무는, 불소고무, EPM, EPDM, 수소화니트릴고무, 실리콘고무, 아크릴고무 및 부틸고무로 이루어지는 군에서 선택된 1종 또는 2종 이상의 재료를 포함하는 것을 특징으로 하는 열프레스용 쿠션재. - 제1항에 있어서,
상기 섬유재료의 층의 상방 및 하방의 어느 일방측에 위치하는 일방측 고무층을 포함하고,
상기 일방측 고무층은, 내부에 분산되어 존재하는 독립기공을 구비하는 것을 특징으로 하는 열프레스용 쿠션재. - 제6항에 있어서,
상기 섬유재료의 층의 상방 및 하방의 타방측에 위치하는 타방측 고무층을 포함하고,
상기 타방측 고무층은, 내부에 분산되어 존재하는 독립기공을 구비하는 것을 특징으로 하는 열프레스용 쿠션재. - 랜덤하게 배향한 다수개의 섬유로 이루어지는 섬유재료와,
상기 섬유재료의 섬유 사이의 공극에 들어간 고무와,
상기 고무 중에 분산되어 존재하는 독립기공과,
상기 섬유재료의 층의 상방 및 하방의 어느 일방측에 위치하는 일방측 고무층과,
상기 일방측 고무층 중에 분산되어 존재하는 독립기공과,
상기 섬유재료의 층의 상방 및 하방의 타방측에 위치하는 타방측 고무층과,
상기 타방측 고무층 중에 분산되어 존재하는 독립기공을 구비하고,
상기 고무, 상기 일방측 고무층 및 상기 타방측 고무층의 전체 고무에 대한 상기 섬유재료의 체적 비율이, 1/75 이상, 1/15 미만이고,
당해 열 프레스용 쿠션재의 기공률이, 체적 기준으로, 15∼70%이고,
상기 독립기공은, 주위가 완전히 봉쇄된 독립 기포인 것을 특징으로 하는 열 프레스용 쿠션재. - 랜덤하게 배향한 다수개의 섬유로 이루어지는 섬유재료와,
상기 섬유재료의 섬유 사이의 공극에 들어간 고무와,
상기 고무 중에 분산되어 존재하는 독립기공과,
상기 섬유재료의 층의 상방 및 하방의 어느 일방측에 위치하는 일방측 고무층과,
상기 일방측 고무층 중에 분산되어 존재하는 독립기공과,
상기 섬유재료의 층의 상방 및 하방의 타방측에 위치하는 타방측 고무층과,
상기 타방측 고무층 중에 분산되어 존재하는 독립기공을 구비하고,
상기 상하의 고무층의 합계 두께에 대한 상기 섬유재료의 층의 두께의 비율은, 1/7∼1/1.5이고,
상기 독립기공은, 주위가 완전히 봉쇄된 독립 기포인 것을 특징으로 하는 열 프레스용 쿠션재. - 랜덤하게 배향한 다수의 섬유로 이루어지는 섬유재료 시트와, 내부에 열팽창성 마이크로캡슐을 분산 배치한 미가황 고무 시트를 겹치는 공정과,
겹친 상기 섬유재료 시트와 상기 미가황 고무 시트를 가압하여, 상기 미가황 고무 시트 중의 미가황 고무 및 마이크로캡슐을 상기 섬유재료 시트의 섬유 사이의 공극에 들여보내 일체화하는 공정과,
상기 일체화한 복합체를 가열하여, 상기 마이크로캡슐을 팽창시켜서 독립기공을 형성하는 공정과,
상기 일체화한 복합체를 가열하여 복합체 중의 미가황 고무를 가황하는 공정을 구비하는 것을 특징으로 하는 열프레스용 쿠션재의 제조 방법. - 제10항에 있어서,
상기 겹치는 공정은, 상기 미가황 고무 시트를 상기 섬유재료 시트의 2장에 끼워 넣는 것을 포함하는 것을 특징으로 하는 열프레스용 쿠션재의 제조 방법. - 제10항 또는 제11항에 있어서,
상기 섬유재료 시트와 상기 미가황 고무 시트를 가압에 의해 일체화하는 공정을, 제1의 온도에서 행하고,
상기 독립기공을 형성하는 공정을, 상기 제1의 온도보다도 높은 제2의 온도에서 행하고,
상기 가황하는 공정을, 상기 제2의 온도보다도 높은 제3의 온도에서 행하는 것을 특징으로 하는 열프레스용 쿠션재의 제조 방법. - 제10항에 있어서,
상기 겹치는 공정은, 상기 섬유재료 시트를 상기 미가황 고무 시트의 2장에 끼워 넣는 것을 포함하는 것을 특징으로 하는 열프레스용 쿠션재의 제조 방법. - 제13항에 있어서,
상기 일체화하는 공정은, 상기 마이크로캡슐을 포함하는 상기 미가황 고무 시트의 일부를 상기 섬유재료 시트의 섬유 사이의 공극에 들여보내고, 나머지 부분을 상기 섬유재료 시트의 밖에 위치시키는 것을 포함하는 것을 특징으로 하는 열프레스용 쿠션재의 제조 방법.
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- 2018-05-28 JP JP2019522211A patent/JP6920756B2/ja active Active
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- 2018-05-28 WO PCT/JP2018/020299 patent/WO2018221439A1/ja active Application Filing
- 2018-05-28 KR KR1020197031267A patent/KR102381488B1/ko active Active
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US20210171730A1 (en) | 2021-06-10 |
TWI770185B (zh) | 2022-07-11 |
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EP3632644A4 (en) | 2021-03-31 |
JPWO2018221439A1 (ja) | 2020-01-23 |
WO2018221439A1 (ja) | 2018-12-06 |
CN110785274A (zh) | 2020-02-11 |
EP3632644A1 (en) | 2020-04-08 |
US11845844B2 (en) | 2023-12-19 |
JP6920756B2 (ja) | 2021-08-18 |
KR20200015887A (ko) | 2020-02-13 |
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