CN108248138A - 一种双热封层高真空阻隔膜及其制备方法 - Google Patents
一种双热封层高真空阻隔膜及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种双热封层高真空阻隔膜及其制备方法,所述双热封层高真空阻隔膜从外到内依次为外热封层、尼龙层、聚酯镀铝膜层、铝箔层、内热封层;制备方法包括:聚酯镀铝膜层与铝箔层热压复合,得到中间品A;将中间品A的铝箔层与内热封层接触,热压复合得到中间品B;在尼龙层上涂布外热封层,得到中间品C;在中间品C中的尼龙层与中间品B中的聚酯镀铝膜层之间添加粘结剂,热压复合得到中间品D;将中间品D放置在50‑60℃环境下12‑15小时,得到双热封层高真空阻隔膜。本发明提供的双热封层高真空阻隔膜具有双热封层,用于制备真空绝热板能使内热封层与芯材热熔连接,密封性能好,防穿刺。
Description
技术领域
本发明涉及外墙保温技术领域,尤其涉及一种双热封层高真空阻隔膜及其制备方法。
背景技术
我国为能源消耗大国,随着我国经济持续快速发展,建筑能耗约占我国社会总能耗的30%,建筑节能形式紧迫。我国各地区气候差异较大,不同地区的建筑节能设计要求不同,GB50176-1993《民用建筑热工设计规范》明确指出,对夏热冬暖地区的设计要求是“必须充分满足夏季防热要求,一般可不考虑冬季保温”,业内对“北方在于保温、南方重点为隔热”已形成共识。在南方地区,室内外温差传热在整个传热中占的比例小,太阳辐射产生的热效应是造成夏季室内热的主要原因。隔热涂料能够反射太阳辐射热,从而降低室内的热,有效减少空调制冷能耗,众多的研究证实了隔热涂料对建筑节能的促进作用。
建筑围护结构的保温隔热是实现建筑节能的关键技术之一,建筑围护结构的保温隔热措施基本上分为外墙外保温、外墙内保温和墙体自保温等几个方面,目前我国以外墙外保温技术为主导。目前广泛应用的外墙外保温体系有外贴保温板薄抹灰和采用真空保温板两种方式。
外贴保温板薄抹灰虽然具有良好的保温效果,但其存在施工工艺复杂、综合成本高、面层材料施工质量难以保证等缺点;真空保温板在安装或使用过程中容易被刺破而产生膨胀效应,这样会使其丧失保温性能。为此,申请人研发了一种新型真空绝热板,本申请适用于该真空绝热板的高真空阻隔膜。
发明内容
基于背景技术存在的技术问题,本发明提出了一种双热封层高真空阻隔膜及其制备方法,本发明提供的双热封层高真空阻隔膜具有双热封层,用于制备真空绝热板能使内热封层与芯材热熔连接,密封性能好,防穿刺。
本发明提供了一种双热封层高真空阻隔膜,所述双热封层高真空阻隔膜为五层结构,从外到内依次为外热封层、尼龙层NY、聚酯镀铝膜层VMPET、铝箔层AL、内热封层。
优选地,外热封层、尼龙层NY、聚酯镀铝膜层VMPET、铝箔层AL、内热封层的厚度比为1:1.4-1.6:0.7-0.8:0.7-0.9:0.9-1.1。
优选地,外热封层、尼龙层、聚酯镀铝膜层、铝箔层、内热封层的厚度比为1:1.5:0.78:0.83:1。
优选地,外热封层、内热封层为聚乙烯层PE。
优选地,双热封层高真空阻隔膜的总厚度为120μm-230μm。
优选地,双热封层高真空阻隔膜的总厚度为130μm、140μm、150μm、160μm、170μm、180μm、190μm、200μm或210μm。
优选地,聚酯镀铝膜层包括:基体层和镀铝层,所述的基体层的原料按照重量份包括:聚对苯二甲酸乙二醇酯32-38份、邻苯二甲酸酯8-12份、聚乙烯7-9份、聚双环戊二烯4-6份、SEBS 10-12份、聚乙烯醇1-3份、丙烯腈-丁二烯-苯乙烯共聚物0.5-1.5份、磷化硅2-4份、三聚磷酸钠2-3份、柠檬酸1-3份、棕榈酸甘油酯1-3份、石脑油1-2份、聚丙烯4-6份、聚苯醚0.5-1份。
优选地,聚酯镀铝膜的基体层的原料按照重量份包括:聚对苯二甲酸乙二醇酯34份、邻苯二甲酸酯11份、聚乙烯8.3份、聚双环戊二烯4.8份、SEBS 11.2份、聚乙烯醇2.2份、丙烯腈-丁二烯-苯乙烯共聚物0.9份、磷化硅2.7份、三聚磷酸钠2.6份、柠檬酸2.2份、棕榈酸甘油酯2.4份、石脑油1.4份、聚丙烯5份、聚苯醚0.7份。
本发明还提供了该种双热封层高真空阻隔膜的制备方法,包括以下步骤:
S1、聚酯镀铝膜层与铝箔层热压复合,得到中间品A;
S2、将S1中得到的中间品A的铝箔层与内热封层接触,热压复合得到中间品B;
S3、在尼龙层上涂布外热封层,得到中间品C;
S4、在S3中得到的中间品C中的尼龙层与S2中得到的中间品B中的聚酯镀铝膜层之间添加粘结剂,热压复合得到中间品D;
S5、将S4中得到的中间品D放置在50-60℃环境下12-15小时,得到双热封层高真空阻隔膜。
优选地,S1中热压复合的条件:温度为230-240℃,压力为2.6-3.2Mpa,时间25-30min。
优选地,S2中热压复合的条件:温度为105-115℃,压力为1.5-1.9Mpa,时间40-50min。
优选地,S4中热压复合的条件:温度为65-70℃,压力为1-1.3Mpa,时间30-35min。
本发明提供的双热封层高真空阻隔膜具有防刮伤、阻水、阻氧等作用。采用本发明方法提供的基体膜制备的聚酯镀铝膜层抗冲击性能优异,不易擦伤和被穿刺。
本发明提供的双热封层高真空阻隔膜具有双热封层,用该高真空阻隔膜的真空绝热板在抽真空后,再经过加热,能使内热封层与芯材热熔连接,密封性能好,防穿刺,即使被刺破也不会完全丧失其保温性能。
具体实施方式
下面,通过具体实施例对本发明的技术方案进行详细说明。
实施例1
本发明提供了一种双热封层高真空阻隔膜,为五层结构,从外到内依次为外热封层、尼龙层、聚酯镀铝膜层、铝箔层、内热封层。外热封层、内热封层为聚乙烯层。
外热封层的厚度为27.7μm,尼龙层的厚度为41.5μm,聚酯镀铝膜层的厚度为21μm,铝箔层的厚度为22.1μm,内热封层的厚度为 27.7μm。
聚酯镀铝膜层包括:基体层和镀铝层,基体层的原料按照重量份包括:聚对苯二甲酸乙二醇酯34份、邻苯二甲酸酯11份、聚乙烯8.3份、聚双环戊二烯4.8份、SEBS 11.2份、聚乙烯醇2.2份、丙烯腈-丁二烯-苯乙烯共聚物0.9份、磷化硅2.7份、三聚磷酸钠2.6份、柠檬酸2.2份、棕榈酸甘油酯2.4份、石脑油1.4份、聚丙烯5份、聚苯醚0.7份。
实施例2
本发明提供了一种双热封层高真空阻隔膜,为五层结构,从外到内依次为外热封层、尼龙层、聚酯镀铝膜层、铝箔层、内热封层。外热封层、内热封层为聚乙烯层。
外热封层的厚度为32.2μm,尼龙层的厚度为46.4μm,聚酯镀铝膜层的厚度为25.2μm,铝箔层的厚度为26.8μm,内热封层的厚度为29.4μm。
实施例3
本发明提供了一种双热封层高真空阻隔膜,为五层结构,从外到内依次为外热封层、尼龙层、聚酯镀铝膜层、铝箔层、内热封层。外热封层、内热封层为聚乙烯层。
外热封层的厚度为35.0μm,尼龙层的厚度为55.6μm,聚酯镀铝膜层的厚度为25.9μm,铝箔层的厚度为26.2μm,内热封层的厚度为37.4μm。
实施例4
本发明提供了一种双热封层高真空阻隔膜,为五层结构,从外到内依次为外热封层、尼龙层、聚酯镀铝膜层、铝箔层、内热封层。外热封层、内热封层为聚乙烯层。
外热封层的厚度为39.7μm,尼龙层的厚度为56.0μm,聚酯镀铝膜层的厚度为28.6μm,铝箔层的厚度为34.5μm,内热封层的厚度为41.3μm。
实施例5
本发明提供了一种双热封层高真空阻隔膜,为五层结构,从外到内依次为外热封层、尼龙层、聚酯镀铝膜层、铝箔层、内热封层。外热封层、内热封层为聚乙烯层。
外热封层的厚度为44μm,尼龙层的厚度为67.3μm,聚酯镀铝膜层的厚度为34.8μm,铝箔层的厚度为31.7μm,内热封层的厚度为 42.2μm。
实施例6
实施例1的双热封层高真空阻隔膜,基体层的原料按照重量份还可以包括:聚对苯二甲酸乙二醇酯32.4份、邻苯二甲酸酯9.3份、聚乙烯7.7份、聚双环戊二烯5.6份、SEBS 10.3份、聚乙烯醇2.8份、丙烯腈-丁二烯-苯乙烯共聚物0.6份、磷化硅3.7份、三聚磷酸钠2.2份、柠檬酸1.5份、棕榈酸甘油酯1.4份、石脑油1.1份、聚丙烯5.8份、聚苯醚0.9份。
实施例7
实施例1的双热封层高真空阻隔膜,基体层的原料按照重量份还可以包括:聚对苯二甲酸乙二醇酯37.3份、邻苯二甲酸酯11.7份、聚乙烯8.8份、聚双环戊二烯4.4份、SEBS 11.6份、聚乙烯醇1.3份、丙烯腈-丁二烯-苯乙烯共聚物1.3份、磷化硅2.2份、三聚磷酸钠2.9份、柠檬酸2.6份、棕榈酸甘油酯2.8份、石脑油1.6份、聚丙烯4.5份、聚苯醚0.6份。
实施例8
实施例1的双热封层高真空阻隔膜,基体层的原料按照重量份还可以包括:聚对苯二甲酸乙二醇酯35.9份、邻苯二甲酸酯8.4份、聚乙烯7.2份、聚双环戊二烯5.1份、SEBS 10.7份、聚乙烯醇1.7份、丙烯腈-丁二烯-苯乙烯共聚物1.1份、磷化硅3.3份、三聚磷酸钠2.4份、柠檬酸2.8份、棕榈酸甘油酯1.8份、石脑油1.9份、聚丙烯4.2份、聚苯醚0.8份。
实施例9
本发明提供了一种双热封层高真空阻隔膜的制备方法,包括以下步骤:
S1、聚酯镀铝膜层与铝箔层热压复合,得到中间品A;热压复合的条件:温度为238℃,压力为2.7Mpa,时间29min;
S2、将S1中得到的中间品A的铝箔层与内热封层接触,热压复合得到中间品B;热压复合的条件:温度为117℃,压力为1.8Mpa,时间42min;
S3、在尼龙层上涂布外热封层,得到中间品C;
S4、在S3中得到的中间品C中的尼龙层与S2中得到的中间品B中的聚酯镀铝膜层之间添加聚氨酯粘结剂,热压复合得到中间品D;热压复合的条件:温度为66℃,压力为1.3Mpa,时间35min;
S5、将S4中得到的中间品D放置在57℃环境下13.5小时,得到双热封层高真空阻隔膜。
实施例10
本发明提供了一种双热封层高真空阻隔膜的制备方法,包括以下步骤:
S1、聚酯镀铝膜层与铝箔层热压复合,得到中间品A;热压复合的条件:温度为236℃,压力为3.1Mpa,时间27min;
S2、将S1中得到的中间品A的铝箔层与内热封层接触,热压复合得到中间品B;热压复合的条件:温度为107℃,压力为1.7Mpa,时间47min;
S3、在尼龙层上涂布外热封层,得到中间品C;
S4、在S3中得到的中间品C中的尼龙层与S2中得到的中间品B中的聚酯镀铝膜层之间添加复合膜专用胶粘结剂,热压复合得到中间品D;热压复合的条件:温度为68℃,压力为1.2Mpa,时间31min;
S5、将S4中得到的中间品D放置在55℃环境下13小时,得到双热封层高真空阻隔膜。
实施例11
本发明提供了一种双热封层高真空阻隔膜的制备方法,包括以下步骤:
S1、聚酯镀铝膜层与铝箔层热压复合,得到中间品A;热压复合的条件:温度为232℃,压力为2.9Mpa,时间26min;
S2、将S1中得到的中间品A的铝箔层与内热封层接触,热压复合得到中间品B;热压复合的条件:温度为111℃,压力为1.6Mpa,时间44min;
S3、在尼龙层上涂布外热封层,得到中间品C;
S4、在S3中得到的中间品C中的尼龙层与S2中得到的中间品B中的聚酯镀铝膜层之间添加聚氨酯粘结剂,热压复合得到中间品D;热压复合的条件:温度为67℃,压力为1.1Mpa,时间33min;
S5、将S4中得到的中间品D放置在52℃环境下14小时,得到双热封层高真空阻隔膜。
本发明中聚酯镀铝膜包括基体层和镀铝层,聚酯镀铝膜采用真空镀铝法制备,即将高纯度的铝丝在1100-1200℃高温下蒸发成气态,其基体层经过真空蒸发室时,气态的铝分子沉淀到基体层表面形成镀铝层。
本发明中聚酯镀铝膜的基体层可以采用已知聚酯膜生产工艺制备,优选采用真空转鼓干燥、熔体挤出铸片、双向拉伸的方法。
本发明提供的双热封层高真空阻隔膜的制备方法S4中使用的粘结剂可以为市场上现有用于复合膜制备的粘结剂。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (10)
1.一种双热封层高真空阻隔膜,其特征在于,所述双热封层高真空阻隔膜为五层结构,从外到内依次为外热封层、尼龙层、聚酯镀铝膜层、铝箔层、内热封层。
2.根据权利要求1所述的一种双热封层高真空阻隔膜,其特征在于,所述外热封层、尼龙层、聚酯镀铝膜层、铝箔层、内热封层的厚度比为1:1.4-1.6:0.7-0.8:0.7-0.9:0.9-1.1。
3.根据权利要求1所述的一种双热封层高真空阻隔膜,其特征在于,所述外热封层、尼龙层、聚酯镀铝膜层、铝箔层、内热封层的厚度比为1:1.5:0.78:0.83:1。
4.根据权利要求1所述的一种双热封层高真空阻隔膜,其特征在于,所述外热封层、内热封层为聚乙烯层PE。
5.根据权利要求1所述的一种双热封层高真空阻隔膜,其特征在于,所述聚酯镀铝膜层包括:基体层和镀铝层,所述的基体层的原料按照重量份包括:聚对苯二甲酸乙二醇酯32-38份、邻苯二甲酸酯8-12份、聚乙烯7-9份、聚双环戊二烯4-6份、SEBS 10-12份、聚乙烯醇1-3份、丙烯腈-丁二烯-苯乙烯共聚物0.5-1.5份、磷化硅2-4份、三聚磷酸钠2-3份、柠檬酸1-3份、棕榈酸甘油酯1-3份、石脑油1-2份、聚丙烯4-6份、聚苯醚0.5-1份。
6.根据权利要求5所述的一种双热封层高真空阻隔膜,其特征在于,所述的基体层的原料按照重量份包括:聚对苯二甲酸乙二醇酯34份、邻苯二甲酸酯11份、聚乙烯8.3份、聚双环戊二烯4.8份、SEBS 11.2份、聚乙烯醇2.2份、丙烯腈-丁二烯-苯乙烯共聚物0.9份、磷化硅2.7份、三聚磷酸钠2.6份、柠檬酸2.2份、棕榈酸甘油酯2.4份、石脑油1.4份、聚丙烯5份、聚苯醚0.7份。
7.一种双热封层高真空阻隔膜的制备方法,其特征在于,包括以下步骤:
S1、聚酯镀铝膜层与铝箔层热压复合,得到中间品A;
S2、将S1中得到的中间品A的铝箔层与内热封层接触,热压复合得到中间品B;
S3、在尼龙层上涂布外热封层,得到中间品C;
S4、在S3中得到的中间品C中的尼龙层与S2中得到的中间品B中的聚酯镀铝膜层之间添加粘结剂,热压复合得到中间品D;
S5、将S4中得到的中间品D放置在50-60℃环境下12-15小时,得到双热封层高真空阻隔膜。
8.根据权利要求6所述的一种双热封层高真空阻隔膜的制备方法,其特征在于,所述S1中热压复合的条件:温度为230-240℃,压力为2.6-3.2Mpa,时间25-30min。
9.根据权利要求6所述的一种双热封层高真空阻隔膜的制备方法,其特征在于,所述S2中热压复合的条件:温度为105-115℃,压力为1.5-1.9Mpa,时间40-50min。
10.根据权利要求6所述的一种双热封层高真空阻隔膜的制备方法,其特征在于,所述S4中热压复合的条件:温度为65-70℃,压力为1-1.3Mpa,时间30-35min。
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