CN112277416A - 一种阻隔膜及其制备方法 - Google Patents
一种阻隔膜及其制备方法 Download PDFInfo
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Abstract
本发明属于薄膜技术领域,涉及一种阻隔膜及其制备方法,包括上下布设的上光学基膜和下光学基膜;所述上光学基膜的一面涂布有防粘连层,另一面涂布有高分子聚合层;所述下光学基膜的一面涂覆有水氧阻隔层,另一面涂布有预涂层;所述水氧阻隔层贴合于所述高分子聚合层。本申请的技术方案能减少水氧分子从侧面及端面进入阻隔膜内部,从而保证了阻隔膜的阻隔性能,本申请还提供了阻隔膜的制备方法,生产工艺简单,有利于降低生产成本。
Description
技术领域
本发明属于薄膜技术领域,涉及一种阻隔膜及其制备方法。
背景技术
通过将量子点材料制备成量子点膜应用在显示器的背光模组中,可以提高显示器色域和色彩饱和度,但是量子点材料对外界的水汽和氧气非常敏感,非常容易衰减,故在量子点膜的实际应用中,需要良好的阻隔性能,以保证量子点膜在使用过程中的稳定性。
目前,一般量子点膜中应用于保护量子点层的阻隔膜都是在薄膜上使用PVD或PECVD方法沉积一层氧化硅或氧化铝,用来隔绝空气中的水和氧气,沉积的无机阻隔层,附着力低且容易脱落,制造成本较高且工艺复杂。
现有技术也有阻隔膜,如专利(CN1068333304A)所述包括从上至下依次设置的上层保护膜层、硬化层、第一PET层、阻隔胶层、第二PET层、量子点胶活化层、以及下层保护膜层;所述量子点胶活化层为含有半导体纳米粒子的丙烯酸光固胶液层,所述阻隔胶层为PVDC改性树脂层,所述PVDC改性树脂层包括如下重量份的组分:PVDC10~20份,所述量子点胶活化层由涂布和UV固化工艺制备而成。
但申请人在实际应用中发现现有技术的阻隔膜仍然存在如下技术问题:第一、PET本身的阻隔性能较低;第二、上述阻隔膜通过多层复合、加纳米粒子得到的,增加了其生产成本。
发明内容
本申请提供一种阻隔膜及其制备方法,有效解决了复合阻隔膜生产成本高、阻隔效率低的问题。
为实现上述技术目的,本申请采取的技术方案为:一种阻隔膜,包括上下布设的上光学基膜和下光学基膜;
所述上光学基膜的一面涂布有防粘连层,另一面涂布有高分子聚合层;
所述下光学基膜的一面涂覆有水氧阻隔层,另一面涂布有预涂层;
所述水氧阻隔层贴合于所述高分子聚合层。
作为本申请改进的技术方案,所述高分子聚合层包括如下重量份的各成份:
高分子聚合物:9.05~52.08份;
有机溶剂:46.88~90.5份;
流平剂:0.45~1.04份;
所述高分子聚合物为聚四氟乙烯、聚三氟氯乙烯、聚偏氟乙烯、乙烯-四氟乙烯共聚物、聚氟乙烯中的一种或任意重量比的多种;其中,聚四氟乙烯分子量介于20000~500000;聚三氟氯乙烯分子量介于10000~300000、聚偏氟乙烯分子量介于50000~500000、乙烯-四氟乙烯共聚物分子量介于100000~400000、聚氟乙烯分子量介于200000~500000。
作为本申请改进的技术方案,所述有机溶剂为乙酸乙酯、甲苯、N,N-二甲基甲酰胺中的一种或任意重量比的多种。
作为本申请改进的技术方案,所述高分子聚合层的流平剂为氟系流平剂。
作为本申请改进的技术方案,所述水氧阻隔层包括如下重量份的各成份:
压敏胶:26.3~52.65份;
有机溶剂:23.67~47.34份;
固化剂:0.019~0.038份。
所述压敏胶为热固型丙烯酸酯类压敏胶,其固含量5%~50%;
所述有机溶剂为含有酯基的溶剂;
所述固化剂为二元或多元异氰酸酯。
作为本申请改进的技术方案,所述水氧阻隔层厚度为5~20μm。
作为本申请改进的技术方案,所述防粘连层的涂层雾度为5~50%。
作为本申请改进的技术方案,所述预涂层的厚度为3~10μm;所述预涂层包括如下重量份的各成份:
水:50~47.34份;
聚氨酯树脂:5~40份;
固化剂:0.1~10份;
助剂:0.1~10份;
其中,固化剂包括异氰酸酯、氮吡啶和噁唑啉中的一种或任意重量的多种;
助剂包括表面润湿剂和消泡剂中的一种或任意重量比的多种。
作为本申请改进的技术方案,所述高分子聚合层厚度为10~50μm。
本申请另一目的是提供阻隔膜的制备方法,包括以下步骤:
制备高分子聚合层:
将配比量的高分子聚合物溶解于有机溶剂中,搅拌均匀得到聚合物溶液;
在上述制备的聚合物溶液中加入配比量的流平剂,搅拌均匀得到的高分子聚合层溶液;
涂布高分子聚合层:
将高分子聚合层溶液涂布于上光学基膜一面,所述上光学基膜的另一面涂布有已固化的防粘连层,70~120℃固化形成高分子聚合层;
制备水氧阻隔层溶液:
将配比量的固化剂加入到配比量的压敏胶溶液中,搅拌均匀得到的水氧阻隔层溶液;
涂布水氧阻隔层溶液:
将水氧阻隔层溶液涂布于下光学基膜一面,所述下光学基膜的另一面已涂布有预涂层,90~120℃固化形成具有粘性的水氧阻隔层;
形成阻隔膜:
将水氧阻隔层与高分子聚合层通过橡胶辊方式贴合,即得到阻隔膜。
有益效果
本发明与现有技术相比,具有以下有益效果:
1、高分子聚合物选择化学结构致密的含氟碳聚合物,将其涂布在光学基材上,形成一层结构致密的涂层,从而达到隔绝空气中水氧的作用。
2、通过控制高分子聚合物在有机溶剂中的比例及高分子聚合的分子量,使其均匀的溶解在有机溶剂中,减少涂布过程中团聚现象,同时选用氟系流平剂,提升高分子聚合层的平整度,以减少表面缺陷,提高附着力。
3、水氧阻隔层通过选用热固型丙烯酸酯类压敏胶,用来粘结高分子聚合层,避免水氧分子从侧面及端面进入阻隔膜内部,从而保证了阻隔膜的阻隔性能,同时控制水氧阻隔层厚度,减少其对阻隔膜光学性能的影响。
4、在阻隔膜一面涂布防粘连层,赋予其防粘连功能,在另一面涂布预涂层可提高光学基材表面的附着力。
综上,本申请的技术方案能够有效减少水氧分子从侧面及端面进入阻隔膜内部,从而保证了阻隔膜的阻隔性能。
附图说明
图1是本发明阻隔膜的结构示意图。
图中各标号分别表示为:1、上光学基膜,2、高分子聚合层,3、水氧阻隔层,4、防粘连层,5、预涂层,6、下光学基膜。
具体实施方式
发明的技术方案进行清楚、完整地描述。显然,所描述的实施例是本发明的一部分实施例,而不是全部的实施例。基于所描述的本发明的实施例,本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例,都属于本发明保护的范围。
本技术领域技术人员可以理解,除非另外定义,这里使用的所有术语(包括技术术语和科学术语)具有与本发明所属领域中的普通技术人员的一般理解相同的意义。还应该理解的是,诸如通用字典中定义的那些术语应该被理解为具有与现有技术的上下文中的意义一致的意义,并且除非像这里一样定义,不会用理想化或过于正式的含义来解释。
为使本发明的目的、技术方案和优点更加清楚、下面将对本发明实施方式作详细描述。
本发明提供了一种阻隔膜,包括上光学基膜、防粘连层、高分子聚合层、具有粘性的水氧阻隔层、下光学基膜和预涂层;
所述上光学基膜的一面涂布有防粘连层,另一面涂布有高分子聚合层;
所述下光学基膜的一面涂覆有水氧阻隔层,另一面涂布有预涂层;
所述水氧阻隔层贴合于所述高分子聚合层。
所述高分子聚合层包括如下重量份的各成份:
高分子聚合物:9.05~52.08份;
有机溶剂:46.88~90.5份;
流平剂:0.45~1.04份。
本发明的高分子聚合层,其中聚合物为聚四氟乙烯(PTFE)、聚三氟氯乙烯(PCTFE)、聚偏氟乙烯(PVDF)、乙烯-四氟乙烯共聚物(ETFE)、乙烯-三氟氯乙烯共聚物(ECTFE)、聚氟乙烯(PVF)中的一种或任意重量比的几种,此类聚合物具有耐高温性、耐氧化性、水氧阻隔性好等特点。
具体的,所述高分子聚合物为聚四氟乙烯、聚三氟氯乙烯、聚偏氟乙烯、乙烯-四氟乙烯共聚物、聚氟乙烯中的一种或任意重量比的多种;其中,聚四氟乙烯分子量介于20000~500000、聚三氟氯乙烯分子量介于10000~300000、聚偏氟乙烯分子量介于50000~500000、乙烯-四氟乙烯共聚物分子量介于100000~400000、聚氟乙烯分子量介于200000~500000,上述高分子聚合物限定其分子量,是使其能够充分溶解在有机溶剂中。
本发明的高分子聚合层,其中,流平剂为氟系流平剂,具体为大日本油墨化学(Dainippon Ink&Chemicals)MEGAFACE F440、F470、F553、F554、F556、F557中的任意一种,提升高分子聚合层的平整度,以减少表面缺陷,提升附着力。
所述有机溶剂为乙酸乙酯、甲苯、N,N-二甲基甲酰胺中的一种或任意重量比的多种,前述高分子聚合物能够溶解于极性溶剂中,使其混合均匀。
所述高分子聚合层厚度为10~50μm,本发明是利用高分子聚合层在光学基膜形成一层结构致密的涂层,限定其厚度有利于减少对阻隔膜光学性能及附着力的影响。
所述具有粘性的水氧阻隔层包括如下重量份的各成份,压敏胶:26.3~52.65份;有机溶剂:23.67~47.34份;固化剂:0.019~0.038份。
所述压敏胶为热固型丙烯酸酯类压敏胶,其固含量5%~50%。
所述有机溶剂为含有酯基的溶剂,包括乙酸乙酯或乙酸丁酯。所述固化剂为二元或多元异氰酸酯(本文指现有技术中所有具公知的二元异氰酸酯和多元异氰酸酯,下文实施例采用其中任意一种进行表述以便更好的为其它成分的变化做对比,但其不影响本领域技术人员对本文技术方案完整度的理解),其与热固型丙烯酸酯类压敏胶发生交联剂反应,从而使多个线型分子相互键合交联成网状结构,所述防粘连层的涂层雾度为5~50%。所述预涂层的厚度为3~10μm;所述预涂层由水、聚氨酯树脂、固化剂、助剂涂布而成。
所述水氧阻隔层厚度为5~20μm,与高分子聚合层一起减少对阻隔膜光学性能的影响。
所述防粘连层的涂层雾度为5~50%。
作为本申请改进的技术方案,所述预涂层的厚度为3~10μm;所述预涂层包括如下重量份的各成份:
水:50~47.34份;
聚氨酯树脂:5~40份;
固化剂:0.1~10份;
助剂:0.1~10份;
其中,固化剂包括异氰酸酯、氮吡啶、噁唑啉;
助剂包括表面润湿剂、消泡剂。
同时本发明提供了阻隔膜的制备方法,包括以下步骤:
制备高分子聚合层:
将配比量的高分子聚合物溶解于有机溶剂中,搅拌均匀得到聚合物溶液;
在上述制备的聚合物溶液中加入配比量的流平剂,搅拌均匀得到的高分子聚合层溶液;
涂布高分子聚合层:
将高分子聚合层溶液涂布于上光学基膜一面,所述上光学基膜的另一面涂布有已固化的防粘连层,70~120℃固化形成高分子聚合层;
制备水氧阻隔层溶液:
将配比量的固化剂加入到配比量的压敏胶溶液中,搅拌均匀得到的水氧阻隔层溶液;
涂布水氧阻隔层溶液:
将水氧阻隔层溶液涂布于下光学基膜一面,所述下光学基膜的另一面已涂布有预涂层,90~120℃固化形成具有粘性的水氧阻隔层;
形成阻隔膜:
将水氧阻隔层与高分子聚合层通过橡胶辊方式贴合,即得到阻隔膜。
下面结合具体实施例对本发明作进一步说明。
实施例1
S1、将4.51g乙烯-三氟氯乙烯共聚物(ECTFE)、4.54g聚三氟氯乙烯(PCTFE)混合一起溶解于90.5g的N,N-二甲基甲酰胺中,搅拌均匀得到混合溶液,在上述制备的混合溶液中加入0.45g流平剂MEGAFACE F556,搅拌均匀,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布防粘连层,70℃固化形成高分子聚合层。
S2、将26.3g压敏胶(LOCTITE DURO-TAK 180-154A)溶解于23.67g的乙酸乙酯中,搅拌均匀后加入0.019g固化剂(LOCTITE DURO-TAK 8096)搅拌均匀得到压敏胶涂布液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布预涂层,90℃固化形成具有粘性的水氧阻隔层。
S3、将步骤S2具有粘性的水氧阻隔层与高分子聚合层贴合,即得到阻隔膜。
性能测试结果见表1。
实施例2
S1、将3.0g聚偏氟乙烯(PVDF)、3.02g乙烯-四氟乙烯共聚物(ETFE)、3.03g聚氟乙烯(PVF)混合溶解于90.5g的N,N-二甲基甲酰胺中,搅拌均匀得到混合溶液,在上述制备的混合溶液中加入0.45g流平剂MEGAFACE F553,搅拌均匀,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布防粘连层,70℃固化形成高分子聚合层。
S2、将26.3g压敏胶(LOCTITE DURO-TAK 180-154A)溶解于23.67g的乙酸乙酯中,搅拌均匀后加入0.019g固化剂(LOCTITE DURO-TAK 8096),搅拌均匀得到压敏胶涂布液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布预涂层,90℃固化形成具有粘性的水氧阻隔层。
S3、将步骤S2具有粘性的水氧阻隔层与高分子聚合层贴合,即得到阻隔膜。
性能测试结果见表1。
实施例3
S1、将9.05g聚四氟乙烯(PTFE)溶解于30.1g的乙酸乙酯、30.2g甲苯、30.2g N,N-二甲基甲酰胺混合有机中,搅拌均匀得到聚四氟乙烯(PTFE)溶液,在上述制备的聚四氟乙烯(PTFE)溶液中加入0.45g流平剂MEGAFACE F440,搅拌均匀,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布防粘连层,70℃固化形成高分子聚合层。
S2、将26.3g压敏胶(LOCTITE DURO-TAK 180-154A)溶解于23.67g的乙酸乙酯中,搅拌均匀后加入0.019g固化剂,搅拌均匀得到压敏胶涂布液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布预涂层,90℃固化形成具有粘性的水氧阻隔层。
S3、将步骤S2具有粘性的水氧阻隔层与高分子聚合层贴合,即得到阻隔膜。
性能测试结果见表1。
实施例4
S1、将9.05g聚四氟乙烯(PTFE)溶解于90.5g的N,N-二甲基甲酰胺中,搅拌均匀得到聚四氟乙烯(PTFE)溶液,在上述制备的聚四氟乙烯(PTFE)溶液中加入0.45g流平剂MEGAFACE F440,搅拌均匀,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布防粘连层,70℃固化形成高分子聚合层。
S2、将52.65g压敏胶(LOCTITE DURO-TAK 180-154A)溶解于47.34g的乙酸丁酯中,搅拌均匀后加入0.038g固化剂(LOCTITE DURO-TAK 8096),搅拌均匀得到压敏胶涂布液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布预涂层,90℃固化形成具有粘性的水氧阻隔层。
S3、将步骤S2具有粘性的水氧阻隔层与高分子聚合层贴合,即得到阻隔膜。
性能测试结果见表1。
实施例5
S1、将52.08g聚三氟氯乙烯(PCTFE)溶解于46.88g的N,N-二甲基甲酰胺中,搅拌均匀得到聚三氟氯乙烯(PCTFE)溶液,在上述制备的聚三氟氯乙烯(PCTFE)溶液中加入1.04g流平剂MEGAFACE F470,搅拌均匀,涂布于聚丙烯(PP)一面,另一面已涂布防粘连层,80℃固化形成高分子聚合层。
S2、将30.3g压敏胶(LOCTITE DURO-TAK 180-154A)溶解于26.67g的乙酸丁酯中,搅拌均匀后加入0.031g固化剂(LOCTITE DURO-TAK 8096),搅拌均匀得到压敏胶涂布液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布预涂层,90℃固化形成具有粘性的水氧阻隔层。
S3、将步骤S2具有粘性的水氧阻隔层与高分子聚合层贴合,即得到阻隔膜。
性能测试结果见表1。
实施例6
S1、将29.06g聚偏氟乙烯(PVDF)溶解于70.38g的乙酸乙酯中,搅拌均匀得到聚偏氟乙烯(PVDF)溶液,在上述制备的聚偏氟乙烯(PVDF)溶液中加入0.56g流平剂MEGAFACEF553,搅拌均匀,涂布于聚酰亚胺(PI)一面,另一面已涂布防粘连层,90℃固化形成高分子聚合层。
S2、将48.65g压敏胶(LOCTITE DURO-TAK 180-154A)溶解于43.34g的乙酸丁酯中,搅拌均匀后加入0.034g固化剂(LOCTITE DURO-TAK 8096),搅拌均匀得到压敏胶涂布液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布预涂层,90℃固化形成具有粘性的水氧阻隔层。
S3、将步骤S2具有粘性的水氧阻隔层与高分子聚合层贴合,即得到阻隔膜。
性能测试结果见表1。
实施例7
S1、将40.79g乙烯-四氟乙烯共聚物(ETFE)溶解于58.49g的甲苯中,搅拌均匀得到乙烯-四氟乙烯共聚物(ETFE)溶液,在上述制备的乙烯-四氟乙烯共聚物(ETFE)溶液中加入0.72g流平剂MEGAFACE F554,搅拌均匀,涂布于聚碳酸酯(PC)一面,另一面已涂布防粘连层,100℃固化形成高分子聚合层。
S2、将46.3g压敏胶(LOCTITE DURO-TAK 180-154A)溶解于43.67g的乙酸丁酯中,搅拌均匀后加入0.028g固化剂(LOCTITE DURO-TAK 8096),搅拌均匀得到压敏胶涂布液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布预涂层,90℃固化形成具有粘性的水氧阻隔层。
S3、将步骤S2具有粘性的水氧阻隔层与高分子聚合层贴合,即得到阻隔膜。
性能测试结果见表1。
实施例8
S1、将50.25g聚氟乙烯(PVF)溶解于48.8g的N,N-二甲基甲酰胺中,搅拌均匀得到聚氟乙烯(PVF)溶液,在上述制备的聚氟乙烯(PVF)溶液中加入0.95g流平剂MEGAFACEF557,搅拌均匀,涂布于聚乙烯(PE)一面,另一面已涂布防粘连层,120℃固化形成高分子聚合层。
S2、将41.3g压敏胶(LOCTITE DURO-TAK 180-154A)溶解于38.67g的乙酸丁酯中,搅拌均匀后加入0.025g固化剂(LOCTITE DURO-TAK 8096),搅拌均匀得到压敏胶涂布液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布预涂层,90℃固化形成具有粘性的水氧阻隔层。
S3、将步骤S2具有粘性的水氧阻隔层与高分子聚合层贴合,即得到阻隔膜。
性能测试结果见表1。
实施例4的对比例1
S1、将9.05g聚四氟乙烯(PTFE)溶解于90.5g的N,N-二甲基甲酰胺中,搅拌均匀得到聚四氟乙烯(PTFE)溶液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布防粘连层,70℃固化形成高分子聚合层。
S2、将52.65g压敏胶(LOCTITE DURO-TAK 180-154A)溶解于47.34g的乙酸乙酯中,搅拌均匀后加入0.038g固化剂(LOCTITE DURO-TAK 8096),搅拌均匀得到压敏胶涂布液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布预涂层,90℃固化形成具有粘性的水氧阻隔层。
S3、将步骤S2具有粘性的水氧阻隔层与高分子聚合层贴合,即得到阻隔膜。
性能测试结果见表1。
实施例4的对比例2
S1、将9.05g聚四氟乙烯(PTFE)溶解于90.5g的N,N-二甲基甲酰胺中,搅拌均匀得到聚四氟乙烯(PTFE)溶液,在上述制备的聚四氟乙烯(PTFE)溶液中加入0.45g流平剂MEGAFACE F440,搅拌均匀,涂布于聚对苯二甲酸乙二醇酯(PET)一面,另一面已涂布防粘连层,70℃固化形成高分子聚合层。
S2、将52.65g压敏胶(LOCTITE DURO-TAK 180-154A)溶解于47.34g的乙酸乙酯中,搅拌均匀后加入0.038g固化剂(LOCTITE DURO-TAK 8096),搅拌均匀得到压敏胶涂布液,涂布于聚对苯二甲酸乙二醇酯(PET)一面,90℃固化形成具有粘性的水氧阻隔层。
S3、将步骤S2具有粘性的水氧阻隔层与高分子聚合层贴合,即得到阻隔膜。
性能测试结果见表1。
表1中各项性能测试方法如下:
参照标准GB/T9286-88,先在样品的涂层上切割11道相互平行,间距相等的切痕,然后再垂直切割与前者切割道数及间距相等的切痕;采用手工切割时,用力要均匀,速度要平稳,以便使刀刃在切割中正好能穿透涂层而触及基底;切割后,在样品上会出现25个或100个方格,用软毛刷沿方格的两对角线方向轻轻刷掉切屑,检查并评价涂层附着力。分别取上述实施例和对比例贴合前样品,测试其高分子聚合层附着力,在预涂层上涂布钙钛矿量子点层,测试其附着力,5B表示百格测试边缘没有任何剥落,切口边缘完全光滑;参照标准GB/T 2792,将阻隔膜裁成宽度为25mm,长度为200mm的样品,将样品下端放入拉力试验机夹具中,上端用胶带连接放入夹具中,以保证剥离180°角,以300mm/min的速度进行剥离试验,测试高分子聚合层与水氧阻隔层剥离力,数值用N/25mm表示;阻隔膜(Mocon Aquatran38℃×90%RH)测试其水蒸气透过率。
表1 各实施例性能数据
由实施例与对比例测试数据可以看出,采用本发明的阻隔膜的水蒸气透过率在0.01-0.1g/m2/day,高分子聚合层和水氧阻隔层可以有效提升膜片的阻隔性能,同时选用氟系流平剂,提升高分子聚合层的平整度,以减少表面缺陷,提高附着力,预涂层可显著提高光学基材表面附着力。
以上仅为本发明的实施方式,其描述较为具体和详细,但并不能因此而理解为对本发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些均属于本发明的保护范围。
Claims (10)
1.一种阻隔膜,其特征在于,包括上下布设的上光学基膜和下光学基膜;
所述上光学基膜的一面涂布有防粘连层,另一面涂布有高分子聚合层;
所述下光学基膜的一面涂覆有水氧阻隔层,另一面涂布有预涂层;
所述水氧阻隔层贴合于所述高分子聚合层。
2.根据权利要求1所述的一种阻隔膜,其特征在于,所述高分子聚合层包括如下重量份的各成份:
高分子聚合物:9.05~52.08份;
有机溶剂:46.88~90.5份;
流平剂:0.45~1.04份;
所述高分子聚合物为聚四氟乙烯、聚三氟氯乙烯、聚偏氟乙烯、乙烯-四氟乙烯共聚物、聚氟乙烯中的一种或任意重量比的多种;其中,聚四氟乙烯分子量介于20000~500000;聚三氟氯乙烯分子量介于10000~300000、聚偏氟乙烯分子量介于50000~500000、乙烯-四氟乙烯共聚物分子量介于100000~400000、聚氟乙烯分子量介于200000~500000。
3.根据权利要求2所述的一种阻隔膜,其特征在于,所述有机溶剂为乙酸乙酯、甲苯、N,N-二甲基甲酰胺中的一种或任意重量比的多种。
4.根据权利要求2所述的一种阻隔膜,其特征在于,所述高分子聚合层的流平剂为氟系流平剂。
5.根据权利要求1所述的一种阻隔膜,其特征在于,所述水氧阻隔层包括如下重量份的各成份:
压敏胶:26.3~52.65份;
有机溶剂:23.67~47.34份;
固化剂:0.019~0.038份;
所述压敏胶为热固型丙烯酸酯类压敏胶,其固含量5%~50%;
所述有机溶剂为含有酯基的有机溶剂;
所述固化剂为二元或多元异氰酸酯。
6.根据权利要求1或5所述的一种阻隔膜,其特征在于,所述水氧阻隔层厚度为5~20μm。
7.根据权利要求1所述的一种阻隔膜,其特征在于,所述防粘连层的涂层雾度为5~50%。
8.根据权利要求1所述的一种阻隔膜,其特征在于,所述预涂层的厚度为3~10μm;所述预涂层包括如下重量份的各成份:
水:50~47.34份;
聚氨酯树脂:5~40份;
固化剂:0.1~10份;
助剂:0.1~10份;
其中,固化剂包括异氰酸酯、氮吡啶和噁唑啉中的一种或任意重量比的多种;
助剂包括表面润湿剂和消泡剂中的一种或任意重量比的多种。
9.根据权利要求1或2所述的一种阻隔膜,其特征在于,所述高分子聚合层厚度为10~50μm。
10.根据权利要求1-9任一所述的阻隔膜的制备方法,其特征在于,包括以下步骤:
制备高分子聚合层:
将配比量的高分子聚合物溶解于有机溶剂中,搅拌均匀得到聚合物溶液;
在上述制备的聚合物溶液中加入配比量的流平剂,搅拌均匀得到的高分子聚合层溶液;
涂布高分子聚合层:
将高分子聚合层溶液涂布于上光学基膜一面,所述上光学基膜的另一面涂布有已固化的防粘连层,70~120℃固化形成高分子聚合层;
制备水氧阻隔层溶液:
将配比量的固化剂加入到配比量的压敏胶溶液中,搅拌均匀得到的水氧阻隔层溶液;
涂布水氧阻隔层溶液:
将水氧阻隔层溶液涂布于下光学基膜一面,所述下光学基膜的另一面已涂布有预涂层,90~120℃固化形成具有粘性的水氧阻隔层;
形成阻隔膜:
将水氧阻隔层与高分子聚合层通过橡胶辊方式贴合,即得到阻隔膜。
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