CN104373766A - 一种家电用真空绝热板阻隔膜的热封方法 - Google Patents
一种家电用真空绝热板阻隔膜的热封方法 Download PDFInfo
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- 238000007789 sealing Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000004888 barrier function Effects 0.000 title claims abstract description 11
- 238000009413 insulation Methods 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 229920006284 nylon film Polymers 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000005269 aluminizing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
本发明公开了一种家电用真空绝热板阻隔膜的热封方法。本发明与现有技术相比，具有以下优点(1)经该热封工艺制备的真空绝热板热封边强度高，热封效果好；(2)经该热封工艺制备的真空绝热板热封边耐穿刺强度高，边界热效应小；(3)经该热封工艺制备的真空绝热板阻隔性好，导热系数随时间变化不大；(4)经该热封工艺制备的真空绝热板节能环保效果好；(5)优化了家电用真空绝热板的综合应用效果。
Description
技术领域
本发明属于材料热封技术领域，具体是涉及一种家电用真空绝热板阻隔膜的热封方法。
背景技术
真空绝热板是以玻璃纤维为芯层材料，以阻气复合薄膜为封装袋，经真空封装后制备而成。由于它最大限度的提高了板内真空度，降低气体的对流从而实现高效绝热，因此具有极低的导热系数和优异的保温性能，是目前世界上最先进的高效保温材料。
随着技术的进步，其在家电隔热保温上的应用越来越被重视。真空绝热板拥有单位面积质量轻、施工简便、无毒、无污染、绿色环保、使用寿命长、不易燃烧等优点。因此，它广泛被用于家电行业节能环保领域。
然而，在真空绝热板实际使用过程中，因漏气导致失效经常发生，漏气点多产生在真空绝热板阻隔膜热封边处，究其原因是由于封口区域不良引起的。由于封口不良导致真空绝热板出现导热系数偏高、节能环保效率低下、阻隔率低下等现象进而导致真空绝热板的失效，影响其实际使用效果。
厦门长塑实业有限公司在公开号为CN102896851A的发明专利上公开了一种可用于真空隔热板的阻隔复合膜，其为四层结构，由外层到内层依次为第一高阻隔尼龙薄膜层(1)、镀铝聚对苯二甲酸乙二醇酯层(2)、第二高阻隔尼龙薄膜层(3)和聚乙烯层(4)，其中所述第一高阻隔尼龙薄膜层(1)的厚度为10-30um，所述镀铝聚对苯二甲酸乙二醇酯层(2)厚度为10-20um，所述第二高阻隔尼龙薄膜层(3)的厚度为10-30um，以及所述聚乙烯层(4)的厚度为40-60um。上述阻隔复合膜相对于现有技术不使用铝箔，封装后真空隔热板边界热效应低，而且具有阻隔性能突出、耐穿刺性良好、和吸水性低等优点。
虽然上述公开专利从不同角度，采用不同材料作为阻隔膜制备真空绝热板，但是并未解决在长期服役环境条件下，真空绝热板因其封口不良导致的阻隔率降低、失效等问题。因此，如何同时解决这些问题实为当前技术和科研人员的重要课题。
发明内容
本发明的目的旨在克服现有技术的不足，提供一种家电用真空绝热板阻隔膜的热封方法，其特征在于该热封方法是由热封温度为160℃-170℃、热封时间为1.0s-2.0s、热封压力为0.2MPa-0.4MPa组成。
该热封方法适用的阻隔膜材料由外到内分别是PA、VMPET、Al、PE。
该热封方法适用的阻隔膜中PA厚度为5-20um。
该热封方法适用的阻隔膜中VMPET厚度为5-15um。
该热封方法适用的阻隔膜中Al厚度为5-10um。
该热封方法适用的阻隔膜中Al厚度为5-10um。
该热封方法适用的阻隔膜中PE厚度为50-60um。
应用效果：本发明与现有技术相比，具有以下优点：
(1)经该热封方法制备的真空绝热板热封边强度高，热封效果好；
(2)经该热封方法制备的真空绝热板热封边耐穿刺强度高，边界热效应小；
(3)经该热封方法制备的真空绝热板阻隔性好，导热系数随时间变化不大；
(4)经该热封方法制备的真空绝热板节能环保效果好；
(5)优化了家电用真空绝热板的综合应用效果。
具体实施方式
下面结合具体实施例，进一步阐明本发明，应理解这些实施例仅用于说明本发明而不用于限制本发明的范围，在阅读了本发明之后，本领域技术人员对本发明的各种等价形式的修改均落于本申请所附权利要求所限定。
实施例
选取该热封方法适用的阻隔膜材料由外到内分别是PA、VMPET、Al、PE。其中，阻隔膜中PA厚度为150um、VMPET厚度为12um、Al厚度为7um、PE厚度为50um。
对于上述阻隔膜，选取热封方法中热封温度为167℃、热封时间为1.8s、热封压力为0.34MPa。
以上所述实施例，仅是本发明的较佳实施例而已，并非是对本发明作其它形式的限制，任何熟悉本专业的技术人员可能利用上述揭示的技术内容加以变更或改型为等同变化的等效实施例。但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何形式的简单修改、等同变化与改型，仍属于本发明技术方案的保护范围。
Claims (7)
1.一种家电用真空绝热板阻隔膜的热封方法，其特征在于该热封方法是由热封温度为160℃-170℃、热封时间为1.0s-2.0s、热封压力为0.2MPa-0.4MPa组成。
2.根据权利要求1所述的热封方法，其特征在于该热封方法适用的阻隔膜材料由外到内分别是PA、VMPET、Al、PE。
3.根据权利要求1所述的热封方法，其特征在于该热封方法适用的阻隔膜中PA厚度为5-20um。
4.根据权利要求1所述的热封方法，其特征在于该热封方法适用的阻隔膜中VMPET厚度为5-15um。
5.根据权利要求1所述的热封方法，其特征在于该热封方法适用的阻隔膜中Al厚度为5-10um。
6.根据权利要求1所述的热封方法，其特征在于该热封方法适用的阻隔膜中Al厚度为5-10um。
7.根据权利要求1所述的热封方法，其特征在于该热封方法适用的阻隔膜中PE厚度为50-60um。
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1114960A2 (de) * | 2000-01-06 | 2001-07-11 | Thyssen Vakuum-Isolationstechnik GmbH | Doppelwandiger Isolierkörper und Verfahren zu seiner Herstellung |
| EP2383504A1 (en) * | 2009-01-29 | 2011-11-02 | Mitsubishi Electric Corporation | Vacuum insulation material and insulation box using the same |
| CN102493564A (zh) * | 2011-12-21 | 2012-06-13 | 江苏秀强玻璃工艺股份有限公司 | 一种建筑外墙用真空保温板及其生产方法 |
| CN102661475A (zh) * | 2012-05-23 | 2012-09-12 | 苏州维艾普新材料有限公司 | 一种真空绝热板现场裁切封装方式 |
| CN103090157A (zh) * | 2013-02-05 | 2013-05-08 | 山东华德隆建材科技有限公司 | 一种真空绝热板及其制备方法 |
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2013
- 2013-08-12 CN CN201310348976.3A patent/CN104373766A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1114960A2 (de) * | 2000-01-06 | 2001-07-11 | Thyssen Vakuum-Isolationstechnik GmbH | Doppelwandiger Isolierkörper und Verfahren zu seiner Herstellung |
| EP2383504A1 (en) * | 2009-01-29 | 2011-11-02 | Mitsubishi Electric Corporation | Vacuum insulation material and insulation box using the same |
| CN102493564A (zh) * | 2011-12-21 | 2012-06-13 | 江苏秀强玻璃工艺股份有限公司 | 一种建筑外墙用真空保温板及其生产方法 |
| CN102661475A (zh) * | 2012-05-23 | 2012-09-12 | 苏州维艾普新材料有限公司 | 一种真空绝热板现场裁切封装方式 |
| CN103090157A (zh) * | 2013-02-05 | 2013-05-08 | 山东华德隆建材科技有限公司 | 一种真空绝热板及其制备方法 |
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