KR101583651B1 - 단열재용 코어 및 그의 제조방법과 이를 이용한 슬림형 단열재 - Google Patents
단열재용 코어 및 그의 제조방법과 이를 이용한 슬림형 단열재 Download PDFInfo
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- KR101583651B1 KR101583651B1 KR1020130024668A KR20130024668A KR101583651B1 KR 101583651 B1 KR101583651 B1 KR 101583651B1 KR 1020130024668 A KR1020130024668 A KR 1020130024668A KR 20130024668 A KR20130024668 A KR 20130024668A KR 101583651 B1 KR101583651 B1 KR 101583651B1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
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- D01D5/0015—Electro-spinning characterised by the initial state of the material
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- D01F1/00—General methods for the manufacture of artificial filaments or the like
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- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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Abstract
본 발명의 단열재용 코어는 열전도율이 낮은 폴리머로 이루어지며, 방사되는 직경 1um 미만의 나노 섬유에 의해 집적되어 3차원 미세 기공 구조를 갖는 다공성 나노웹으로 이루어지는 것을 특징으로 한다.
Description
종 류 | 열전도율(단위: mW/mK) | 비고 |
광진면(mineral wool) | 30~40 | |
발포폴리스티렌(EPS) | 30~40 | |
압축발포폴리스티렌(XPS) | 30~40 | |
셀룰로오스 | 40~50 | |
코르크 | 40~50 | |
폴리우레탄 | 20~30 | |
VIP | 3~4 | |
GFP | 40 | |
에어로젤 | 13~14 |
도 2 내지 도 4는 본 발명의 제1 내지 제3 실시예에 따른 단열재의 코어에 사용되는 코어재의 단면도,
도 5는 본 발명에 사용되는 외피재의 구조를 나타내는 단면도,
도 6a 및 도 6b는 각각 본 발명에 따른 단열재의 코어에 사용되는 코어재의 제조공정을 나타내는 공정도,
도 7은 본 발명에 따른 코어재로 사용되는 나노웹을 단일 방사용액을 사용하여 형성하는 전기방사장치를 나타내는 개략 단면도,
도 8 및 도 9는 각각 본 발명에 따른 코어재로 사용되는 나노웹을 다공성 기재인 부직포의 양면에 형성하는 전기방사장치를 나타내는 개략 단면도,
도 10은 본 발명에 따른 코어재로 사용되는 나노웹을 2종류의 방사용액을 사용하여 형성하는 전기방사장치를 나타내는 개략 단면도,
도 11은 본 발명에 따른 코어재로 사용되는 나노웹의 확대 사진,
도 12는 본 발명에 따른 코어재로 사용되는 나노웹이 무기물을 함유하는 경우의 함량에 따른 내열성 시험 결과를 나타내는 사진이다.
수축률(MD방향) | 인장강도 (MD방향: kgf/cm2) |
방사안정성 | |
비교예 1 (0wt%) |
20.68 | 169.27 | 매우 좋음 |
비교예 2 (5wt%) |
12.59 | 166.21 | 매우 좋음 |
실시예 2 (10wt%) |
5.33 | 110.13 | 좋음 |
실시예 3 (15wt%) |
2.67 | 91.77 | 좋음 |
실시예 4 (20wt%) |
2 | 88.71 | 좋음 |
비교예 3 (30wt%) |
1 | 67.21 | 불안정 |
3: 이송관 4,41-43: 방사노즐
4a: 에어 5: 나노 섬유
6: 콜렉터 7: 나노웹
8,25: 프리히터 9,26: 캘린더 장치
10-10b: 나노웹 11: 다공성 기재
21,21a,22: 전기방사장치 100: 단열재
120-120b: 외피재 121: 실링층
122: 배리어층 123: 보호층
140: 코어 140a-140c: 코어재
160: 게터재
Claims (26)
- 폴리머의 전기방사에 의해 만들어지는 나노섬유가 집적되어 형성되고, 공기를 트랩핑하기 위한 다수의 미세기공 구조를 갖는 적어도 1층의 다공성 나노웹을 포함하는 단열재용 코어.
- 제1항에 있어서, 상기 다공성 나노웹의 일면 또는 양면에 형성되는 다공성 기재를 더 포함하는 것을 특징으로 하는 단열재용 코어.
- 제2항에 있어서, 상기 다공성 기재는 폴리올레핀계 수지로 이루어진 부직포를 포함하는 것을 특징으로 하는 단열재용 코어.
- 제1항에 있어서, 상기 폴리머는, 0.1W/mK 미만의 열전도율을 가지는 폴리머와 내열성 폴리머의 혼합 폴리머로 이루어지는 것을 특징으로 하는 단열재용 코어.
- 제1항에 있어서, 상기 다공성 나노웹은, 0.1W/mK 미만의 열전도율을 가지는 폴리머로 이루어진 제1나노웹층과, 내열성 폴리머 또는 접착성이 우수한 폴리머로 이루어진 제2나노웹층이 적층된 구조를 갖는 갖을 특징으로 하는 단열재용 코어.
- 제1항에 있어서, 상기 다공성 나노웹은, 0.1W/mK 미만의 열전도율을 가지는 폴리머로 이루어진 제1 나노 섬유와, 내열성 폴리머 또는 접착성이 우수한 폴리머로 이루어진 제2 나노 섬유가 교차방사되어 형성되는 것을 특징으로 하는 단열재용 코어.
- 제1항에 있어서, 상기 다공성 나노웹의 나노섬유의 직경은 1um 미만이고, 미세 기공은 10nm-2um 범위로 설정되는 것을 특징으로 하는 단열재용 코어.
- 제1항에 있어서, 상기 다공성 나노웹의 두께는 5 내지 50um 범위인 것을 특징으로 하는 단열재용 코어.
- 제1항에 있어서, 상기 폴리머는 폴리비닐클로라이드, 셀룰로오스 아세테이트, 폴리비닐리덴플루오라이드(PVDF), 폴리아크릴로니트릴(PAN), 폴리메틸메타크릴레이트 및 폴리비닐아세테이트로 이루어지는 군에서 선택된 적어도 하나인 것을 특징으로 하는 단열재용 코어.
- 삭제
- 제1항에 있어서, 상기 다공성 나노웹은, 나노섬유의 내부에 매입 또는 일부가 외부에 노출된 상태로 존재하는 무기물 입자를 더 포함하는 것을 특징으로 하는 단열재용 코어.
- 제1항에 있어서, 상기 다공성 나노웹은 판형상으로 다수회 절첩되거나, 판형상으로 권선되거나, 또는 원하는 형상으로 절단한 후 이를 다수층으로 적층한 구조를 갖는 것을 특징으로 하는 단열재용 코어.
- 외피재; 및
상기 외피재의 내부에 봉입되는 청구항 제1항 내지 제9항 중 어느 한 항에 기재된 코어;를 포함하는 단열재. - 삭제
- 삭제
- 폴리머를 용매에 용해하여 방사용액을 제조하는 단계;
상기 방사용액을 전기방사하여, 나노섬유가 집적되어 공기를 트랩핑하기 위한 다수의 미세기공 구조를 갖는 다공성 나노웹을 형성하는 단계; 및
상기 다공성 나노웹을 다수층 적층하는 단계;를 포함하는 단열재용 코어의 제조방법. - 제16항에 있어서,
상기 다공성 나노웹을 형성하는 단계는, 상기 방사용액을 지지체 역할을 하는 다공성 기재의 일면 또는 양면에 전기방사하여 형성하는 것을 특징으로 하는 단열재용 코어의 제조방법. - 제16항에 있어서, 상기 다공성 나노웹을 다수층 적층하는 단계 이전에, 상기 다공성 나노웹을 지지체 역할을 하는 다공성 기재의 일면 또는 양면에 합지시키는 단계를 더 포함하는 것을 특징으로 하는 단열재용 코어의 제조방법.
- 제16항에 있어서, 상기 다공성 나노웹을 형성하는 단계는, 상기 방사용액을 트랜스퍼 시트에 전기방사하여 트랜스퍼 시트에 상기 다공성 나노웹을 형성하는 단계로 이루어지며;
상기 다공성 나노웹과 트랜스퍼 시트를 분리하면서 지지체 역할을 하는 다공성 기재의 일면 또는 양면에 상기 다공성 나노웹을 합지시키는 단계를 더 포함하는 것을 특징으로 하는 단열재용 코어의 제조방법. - 제17항 내지 제19항 중 어느 한 항에 있어서, 상기 다공성 기재는 폴리올레핀계 부직포인 것을 특징으로 하는 단열재용 코어의 제조방법.
- 제16항 내지 제19항 중 어느 한 항에 있어서, 상기 다공성 나노웹을 다수층 적층한 후, 적층된 상기 다공성 나노웹을 판형상으로 다수회 절첩하거나, 판형상으로 권선하는 단계를 포함하는 것을 특징으로 하는 단열재용 코어의 제조방법.
- 제16항 내지 제19항 중 어느 한 항에 있어서, 상기 다공성 나노웹을 다수층 적층한 후, 원하는 형상으로 절단하는 단계로 이루어지는 것을 특징으로 하는 단열재용 코어의 제조방법.
- 제16항에 있어서, 상기 적층된 다수층의 나노웹을 캘린더링하는 단계를 더 포함하는 것을 특징으로 하는 단열재용 코어의 제조방법.
- 외피재 내부에 청구항 제1항 내지 제9항 중 어느 한 항에 기재된 코어와 게터재가 봉입되어 구성되고,
상기 외피재의 내부가 진공 또는 감압된 상태로 형성되는 것을 특징으로 하는 단열재. - 폴리머의 전기방사에 의해 만들어지는 직경 1um 미만의 나노섬유가 집적되어 3차원 미세기공 구조를 갖는 다공성 나노웹으로 이루어지는 단열재용 코어로서,
상기 다공성 나노웹을 형성하는 폴리머는 열전도율이 낮은 폴리머와 내열성 폴리머의 혼합 폴리머인 것을 특징으로 하는 단열재용 코어. - 폴리머의 전기방사에 의해 만들어지는 직경 1um 미만의 나노섬유가 집적되어 3차원 미세기공 구조를 갖는 다공성 나노웹으로 이루어지는 단열재용 코어로서,
상기 다공성 나노웹은 열전도율이 낮은 폴리머로 이루어진 제1나노웹층과 내열성 폴리머로 이루어진 제2나노웹층이 적층된 구조인 것을 특징으로 하는 단열재용 코어.
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KR1020130024668A KR101583651B1 (ko) | 2013-03-07 | 2013-03-07 | 단열재용 코어 및 그의 제조방법과 이를 이용한 슬림형 단열재 |
CN201480012612.0A CN105026816B (zh) | 2013-03-07 | 2014-02-28 | 绝热材料用芯及其制备方法和利用其的超薄型绝热材料 |
US14/771,940 US20160010249A1 (en) | 2013-03-07 | 2014-02-28 | Core for insulation material, manufacturing method therefor, and slim insulating material using same |
PCT/KR2014/001692 WO2014137110A1 (ko) | 2013-03-07 | 2014-02-28 | 단열재용 코어 및 그의 제조방법과 이를 이용한 슬림형 단열재 |
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KR101460304B1 (ko) * | 2012-05-18 | 2014-11-21 | 주식회사 아모그린텍 | 방수 통음 시트 및 그 제조방법과, 방수 통음 시트를 구비한 전자기기 |
CN107323014A (zh) * | 2015-03-17 | 2017-11-07 | 株式会社东芝 | 结构体及芯材 |
KR102082918B1 (ko) * | 2015-12-21 | 2020-03-02 | 한국건설기술연구원 | 단열재 |
CN105889708B (zh) * | 2016-06-15 | 2019-10-15 | 嘉兴中易碳素科技有限公司 | 智能设备隔热膜及包含该隔热膜的智能设备 |
WO2018064187A1 (en) * | 2016-09-27 | 2018-04-05 | North Carolina Agricultural And Technical State University | Low thermal conductivity carbon-containing materials and methods of producing the same |
US10345030B2 (en) * | 2017-01-06 | 2019-07-09 | Panasonic Corporation | Refrigerator |
WO2021202820A1 (en) * | 2020-03-31 | 2021-10-07 | Matregenix, Inc. | Electrospun nanofibrous polymer membrane for use in personal protective equipment |
IT202100026366A1 (it) | 2021-10-14 | 2023-04-14 | Saati Spa | Processo di produzione di un materiale composito rinforzato con membrana di nanofibre e membrana di nanofibre per tale processo |
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CN1325833C (zh) * | 2002-05-15 | 2007-07-11 | 卡伯特公司 | 耐热绝缘复合物、含该复合物的基物、和其制备方法 |
US7427575B2 (en) * | 2004-06-02 | 2008-09-23 | Owens Corning Intellectual Capital, Llc | Faced fibrous insulation |
KR101210973B1 (ko) * | 2007-08-02 | 2012-12-12 | 노쓰 캐롤라이나 스테이트 유니버시티 | 혼합 섬유 및 이로부터 제조된 부직포 |
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KR101620397B1 (ko) | 2009-08-07 | 2016-05-12 | 엘지전자 주식회사 | 진공단열재 및 진공단열재를 구비한 냉장고 |
KR101597554B1 (ko) | 2009-08-07 | 2016-02-25 | 엘지전자 주식회사 | 진공단열재 및 진공단열재를 구비한 냉장고 |
KR20110015326A (ko) | 2009-08-07 | 2011-02-15 | 엘지전자 주식회사 | 진공단열재의 코어 제조방법, 진공단열재의 코어 및 이를 구비한 진공단열재 |
KR20110077860A (ko) | 2009-12-30 | 2011-07-07 | (주)엘지하우시스 | 진공 단열재 및 그 제조 방법 |
KR101134046B1 (ko) * | 2010-02-25 | 2012-04-13 | 단국대학교 산학협력단 | 단열성 나노분말이 단열체로부터 분리되지 않는 단열체 및 그 단열체의 제조방법 |
DE102010029513A1 (de) * | 2010-05-31 | 2011-02-24 | Wacker Chemie Ag | Dämmung mit Schichtaufbau |
WO2011152610A1 (ko) | 2010-06-04 | 2011-12-08 | Park Kyoo Chul | 진공 단열 패널 및 그 제조방법 |
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KR20130015183A (ko) | 2011-08-02 | 2013-02-13 | 삼성전자주식회사 | 고기능성 진공단열재 및 그 제조방법 |
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US20160010249A1 (en) | 2016-01-14 |
WO2014137110A1 (ko) | 2014-09-12 |
CN105026816B (zh) | 2018-02-09 |
KR20140110404A (ko) | 2014-09-17 |
CN105026816A (zh) | 2015-11-04 |
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