CN104937729B - 量子点膜 - Google Patents
量子点膜 Download PDFInfo
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- CN104937729B CN104937729B CN201480005245.1A CN201480005245A CN104937729B CN 104937729 B CN104937729 B CN 104937729B CN 201480005245 A CN201480005245 A CN 201480005245A CN 104937729 B CN104937729 B CN 104937729B
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- Prior art keywords
- quantum dot
- precursor
- methacrylate polymers
- quanta point
- point material
- Prior art date
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Classifications
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Abstract
本发明涉及一种量子点膜制品,所述量子点膜制品包括第一阻隔膜、第二阻隔膜和量子点层,所述量子点层使所述第一阻隔膜与所述第二阻隔膜分离。所述量子点层包含分散于聚合物材料中的量子点。所述聚合物材料包含甲基丙烯酸酯聚合物、环氧树脂聚合物和光引发剂。
Description
技术领域
本公开涉及量子点膜和形成具有减少的缺陷的量子点膜的方法。
背景技术
量子点膜和元件在显示器和其它光学构造中使用。量子点需对氧气和水为密封的。因此,这些量子点已分散于聚合物诸如环氧树脂中并置于两个阻隔膜之间。
在量子点膜的形成期间,环氧树脂聚合物由2部分环氧胺树脂形成。增加固化温度用于缩短这些环氧树脂聚合物的固化时间。然而,已发现增加的固化温度引起量子点膜的缺陷。随着固化温度增加,聚合物前体粘度在开始固化之前降低。该低粘度允许聚合物前体在层合构造内移动。此外,该聚合物前体响应于例如由阻隔膜回缩、线张力失配和不均匀加热所引起的应力可移动。
发明内容
本公开涉及量子点膜和形成具有减少的缺陷的量子点膜的方法。互穿聚合物网络通过将可辐射固化甲基丙烯酸酯添加至形成量子点的基体的环氧胺层合粘合剂来形成。可辐射固化甲基丙烯酸酯将环氧胺层合粘合剂的粘度增加至某个点,其中在环氧胺的高温固化期间消除或大大地减少缺陷生成。
在本公开的第一方面,量子点膜制品包括第一阻隔膜、第二阻隔膜和量子点层,该量子点层使第一阻隔膜与第二阻隔膜分离。量子点层包含分散于聚合物材料中的量子点。聚合物材料包含甲基丙烯酸酯聚合物、环氧树脂聚合物和光引发剂。
在一个或多个实施例中,甲基丙烯酸酯聚合物构成5至25重量%或10至20重量%的量子点层。在一个或多个实施例中,环氧树脂聚合物构成70至90重量%的量子点层。
在一个或多个实施例中,环氧树脂聚合物包括环氧胺聚合物。在一个或多个实施例中,甲基丙烯酸酯聚合物通过双或三官能甲基丙烯酸酯聚合物前体的辐射聚合来形成。在一个或多个实施例中,环氧树脂聚合物通过双官能胺和二环氧化物的热聚合来形成。
在本公开的第二方面,形成量子点膜制品的方法包括将量子点材料涂布于第一阻隔层上将第二阻隔层设置于量子点材料上。量子点材料包含量子点、光引发剂、5至25重量%的甲基丙烯酸酯聚合物前体和70至90重量%的环氧树脂聚合物前体。量子点材料在第一温度下具有第一粘度。
在一个或多个实施例中,形成量子点膜制品的方法包括使甲基丙烯酸酯聚合物前体聚合以形成部分固化的量子点材料。在一个或多个实施例中,形成量子点膜制品的方法包括使部分固化的量子点材料的环氧树脂聚合物前体聚合以形成固化的量子点材料。
在一个或多个实施例中,形成量子点膜制品的方法包括使甲基丙烯酸酯聚合物前体辐射聚合。在一个或多个实施例中,形成量子点膜制品的方法包括使环氧树脂聚合物前体热聚合。
在一个或多个实施例中,形成量子点膜制品的方法包括形成这样的部分固化的量子点材料,该量子点材料在第一温度下具有第二粘度,该第二粘度比第一粘度大至少10倍。在一个或多个实施例中,形成量子点膜制品的方法包括形成这样的部分固化的量子点材料,该量子点材料在第一温度下具有第二粘度,该第二粘度比第一粘度大至少20倍。在一个或多个实施例中,形成量子点模制品的方法包括第一粘度小于10000厘泊。在一个或多个实施例中,形成量子点模制品的方法包括第二粘度大于100000厘泊。
在一个或多个实施例中,形成量子点膜制品的方法包括环氧树脂聚合物前体为双官能胺和二环氧化物。在一个或多个实施例中,形成量子点膜制品的方法包括甲基丙烯酸酯聚合物前体为双或三官能甲基丙烯酸酯聚合物前体。
在本公开的第三方面,量子点材料包含量子点、光引发剂、5至25重量%的甲基丙烯酸酯聚合物前体、和70至90重量%的环氧树脂聚合物前体。
在一个或多个实施例中,量子点材料包含UV可固化甲基丙烯酸酯聚合物前体和可热固化环氧树脂聚合物前体。
附图和下文的说明中给出了本发明的一个或多个实施例的详情。从说明、附图和权利要求书中将显而易见本发明的其他特征、目标和优点。
附图说明
结合附图,参考以下对本发明的多个实施例的详细说明,可更全面地理解本发明,其中:
图1为例示性量子点膜的示意性侧正视图;并且
图2为形成量子点膜的例示性方法的流程图。
具体实施方式
在以下详细说明中参考形成说明的一部分的附图,并且其中通过举例说明的方式示出若干具体实施例。应当理解,在不脱离本发明的范围或实质的情况下,设想并可做出其它实施例。因此,以下的具体实施方式不具有限制性意义。
除非另外指明,否则本文所用的所有科技术语具有本领域中常用的含义。本文给出的定义有利于理解本文中频繁使用的某些术语,且并不意味着限制本发明的范围。
除非另外指明,否则本说明书和权利要求中使用的表示特征尺寸、数量和物理特性的所有数字均应该理解为在所有情况下均是由术语“约”来修饰的。因此,除非有相反的说明,否则上述说明书和所附权利要求书中列出的数值参数均是近似值,根据本领域的技术人员利用本文所公开的教导内容寻求获得的所需特性,这些近似值可以变化。
除非本文内容另外清楚指明,否则如本说明书和所附权利要求中使用的,单数形式“一种”、“一个”和“所述”涵盖了具有多个指代物的实施例。如本说明书以及附加的权利要求中所使用,术语“或”一般以包括“和/或”的意思使用,除非内容另外清楚声明。
与空间相关的术语(包括但不限于“下面”、“上面”、“在...下面”、“在...之下”、“在...之上”和“在顶部上”),如果在本文中使用,则用于便于描述一个元件相对于另一个元件的空间关系。此类空间相关术语涵盖除示于附图中并且描述于本文中的特定取向之外的装置在使用或运行中的不同取向。例如,如果图中所示出的物体翻过来或翻转过来,那么先前描述的在其他元件之下或下面的部分就在那些其他元件之上。
如本文所用,例如当元件、组件或层描述为与另一元件、组件或层形成“一致界面”,或在另一元件、组件或层“上”、“连接到”、“耦接到”或“接触”另一元件、组件或层时,其可以直接在所述元件、组件或层之上,直接连接到,直接耦接到,直接接触所述特定元件、组件或层,或者居间的元件、组件或层可能在所述特定元件、组件或层之上,或连接到、耦接到或接触所述特定元件、组件或层。例如,当元件、部件或层被称为“直接在”另一元件“上”、“直接连接到”、“直接耦接到”或“直接接触”另一元件时,则没有居间的元件、部件或层。
如本文所用,“具有”(“have”、“having”)、“包括”(“include”、“including”、“comprise”、“comprising”)等以其开放性的含义使用,并且通常是指“包括但不限于”。应当理解,术语“由...组成”和“基本上由...组成”包括在术语“包含/包括”等的范围内。
本公开涉及量子点膜和形成具有减少的缺陷等方面的量子点膜的方法。互穿聚合物网络通过将可辐射固化甲基丙烯酸酯添加至形成量子点的基体的环氧胺层合粘合剂来形成。可辐射固化甲基丙烯酸酯增加了环氧胺层合粘合剂的粘度并减少了如下缺陷,这些缺陷在环氧胺的热加速期间将以其它方式形成。可辐射固化甲基丙烯酸酯以较低的水平(例如,5至25重量%)提供,而不减少环氧胺聚合物的官能性质。在辐射固化之后,体系的粘度大大地增加,从而允许在涂布和加工线上更易于处理产品。辐射固化可紧随在两个阻隔膜的层合之后发生。因此,粘度的增加决定了紧随在层合之后的涂布质量。相比于仅环氧树脂层合粘合剂的传统热固化,层合粘合剂的甲基丙烯酸酯部分的辐射固化提供了对涂布、固化和幅材处理的更大控制。虽然本发明不受此限制,但是通过讨论下面提供的实例,将认识到本发明的各个方面。
图1为例示性量子点膜10的示意性侧正视图。图2为形成量子点膜的例示性方法100的流程图。
在一个或多个实施例中,量子点(QD)膜制品10包括第一阻隔膜32、第二阻隔膜34和量子点层20,该量子点层20使第一阻隔膜32与第二阻隔膜34分离。量子点层20包含分散于聚合物材料中的量子点。聚合物材料包含甲基丙烯酸酯聚合物、环氧树脂聚合物和光引发剂。
在一个或多个实施例中,形成量子点膜制品的方法100包括将量子点材料涂布于第一阻隔层上102以及将第二阻隔层设置于量子点材料上104。量子点材料包含量子点、光引发剂、5至25重量%的甲基丙烯酸酯聚合物前体和70至90重量%的环氧树脂聚合物前体。量子点材料在第一温度下具有第一粘度。
在许多实施例中,形成量子点膜制品的方法100包括使甲基丙烯酸酯聚合物前体聚合(例如,辐射固化)以形成部分固化的量子点材料106和使部分固化的量子点材料的环氧树脂聚合物前体聚合(例如,热固化)以形成固化的量子点材料108。
在许多实施例中,形成量子点膜制品的方法包括形成这样的部分固化的量子点材料,该量子点材料在第一温度下具有第二粘度,该第二粘度比第一粘度大至少10倍或至少20倍。在一个或多个实施例中,第一粘度小于10000厘泊并且第二粘度大于100000厘泊。
阻隔膜32、34可由任何可用的膜材料形成,该膜材料可从环境条件(诸如氧气和水分)保护量子点。合适的阻隔膜包含例如聚合物、玻璃或电介质材料。合适的阻隔层材料包含但不限于聚合物,诸如聚对苯二甲酸乙二酯(PET);氧化物,诸如氧化硅、氧化钛或氧化铝(例如SiO2、Si2O3、TiO2或Al2O3);以及它们的合适组合。在许多实施例中,量子点膜的每个阻隔层包含至少两层的不同材料或组合物,以使得多层的屏蔽消除或减小阻隔层中的针孔缺陷对齐,从而提供对渗入量子点荧光粉材料中的氧气和水分的有效屏蔽。量子点膜可包含任何合适材料或材料的组合,以及量子点荧光粉材料的一侧或两侧上的任何合适数量的阻隔层。材料、厚度和阻隔层的数量将取决于具体应用,并且将适当地选择以最大化屏蔽保护和量子点荧光粉的亮度,同时最小化量子点膜的厚度。在许多实施例中,每个阻隔层为层合物膜,诸如双层合物膜,其中每个阻隔层的厚度足够厚以消除卷对卷层合物制造工艺中的褶皱。在一个例示性实施例中,阻隔膜为具有氧化物层的聚酯膜(例如,PET)。
量子点材料20可包含一个或多个量子点材料群。示例性量子点或量子点材料在蓝色LED的蓝色原初光下转换为由量子点发出的次级光时发出绿光和红光。红光、绿光和蓝光的相应部分可经控制以实现由并入量子点模制品的显示器装置所发出的白色光的所需白色点。使用于本文所描述的量子点模制品中的示例性量子点包括具有ZnS壳的CdSe。使用于本文所描述的量子点模制品中的合适量子点包括芯/壳发光纳米晶体,其包括CdSe/ZnS、InP/ZnS、PbSe/PbS、CdSe/CdS、CdTe/CdS或CdTe/ZnS。在示例性实施例中,发光纳米晶体包括外配体涂层并且分散于聚合物基体中。量子点和量子点材料可商购获得自加利福尼亚州帕洛阿尔托的纳米***公司(Nanosys Inc.,Palo Alto,CA)。量子点层可具有任何可用量的量子点。在许多实施例中,量子点层可具有0.1至1重量%的量子点。
在一个或多个实施例中,量子点材料20可包含散射珠或粒子。这些散射珠或粒子具有与环氧树脂聚合物的折射率不同的折射率,诸如相差至少0.05或至少0.1。这些散射珠或粒子可包括聚合物,诸如有机硅、丙稀酸类树脂、尼龙等。这些散射珠或粒子可包括无机物,诸如TiO2、SiOx、AlOx等。包括散射粒子导致更长的光学路径长度和改善的量子点吸收度和效率。在许多实施例中,粒度在1至10微米或2至6微米的范围内。在许多实施例中,量子点材料20可包含填料,诸如热解法二氧化硅。
由于丙烯酸酯的快速迈克尔加成,甲基丙烯酸酯用于保持环氧胺聚合物体系的工作时间。互穿聚合物网络通过将可辐射固化甲基丙烯酸酯添加至形成量子点的基体的环氧胺层合粘合剂来形成。可辐射固化甲基丙烯酸酯增加了环氧胺层合粘合剂的粘度并减少了如下缺陷,这些缺陷在环氧胺的热加速期间将以其它方式形成。可辐射固化甲基丙烯酸酯以较低的水平提供,而不减少环氧胺聚合物的官能性质。甲基丙烯酸酯聚合物形成5至25重量%或10至20重量%的量子点层。如果甲基丙烯酸酯聚合物形成多于25重量%的量子点层,那么已经发现的是,甲基丙烯酸酯聚合物无法附着至阻隔膜并且无法提供适当的阻隔性。如果甲基丙烯酸酯聚合物形成少于5重量%的量子点层,那么已经发现的是,甲基丙烯酸酯聚合物无法适当地增加量子点层的粘度。甲基丙烯酸酯聚合物通过双或三官能甲基丙烯酸酯聚合物前体的辐射聚合来形成。可用的甲基丙烯酸酯为具有合格的阻隔性的那些,例如具有双酚A、双酚F和间苯二酚主链的那些。具有高Tg和高交联密度的甲基丙烯酸酯将提供改善的气体和水蒸气阻隔性。
在辐射固化之后,体系的粘度大大地增加,从而允许在涂布和加工线上更易于处理产品。辐射固化可紧随在两个阻隔膜的层合之后发生。因此,粘度的增加决定了紧随在层合之后的涂布质量。通过紧随在涂布或层合之后固化,UV固化的甲基丙烯酸酯将粘度增加至某个点,其中树脂作用为压敏粘合剂(PSA),在环氧胺的热固化期间将层合物保持在一起,和在环氧胺的高温固化(70至120摄氏度)期间大大地减少缺陷。相比于仅环氧树脂层合粘合剂的传统热固化,层合粘合剂的甲基丙烯酸酯部分的辐射固化提供了对涂布、固化和幅材处理的更大控制。
环氧树脂聚合物包括环氧胺聚合物。环氧树脂聚合物通过双官能胺和二环氧化物的热聚合来形成。环氧树脂聚合物形成70至90重量%的量子点层。在许多实施例中,环氧胺聚合物材料的折射率在1.48至1.60或1.50至1.57的范围内。在使用低折射率粒子或乳液时,更高的折射率改善了散射。这导致更长的光学路径长度和改善的量子点效率。高折射率材料中的缀合还降低了水蒸气和氧气传送率。
通过下面的实例进一步说明所公开的量子点膜的一些优点。在实例中所述的特定材料、量和尺寸以及其他条件和细节不应理解为对本发明的不当限制。
实例
实例1:制备两种类型的溶液,一种根据本发明而一种作为对照物。
对照溶液(溶液A)的组分和量示出于表1中。对照溶液因而为仅环氧树脂制剂。Epon 828为购自俄亥俄州哥伦布的迈图特种化学品公司(Momentive SpecialtyChemicals(Columbus,OH))的通用环氧树脂。部分B为Epic RMX91B,一种双官能胺硬化剂(购自威斯康星州巴尔米拉的艾比克树脂公司(Epic Resins,Palmyra,WI)),具有15%的白色量子点浓缩物(购自加利福尼亚州帕洛阿尔托的纳米***公司),该浓缩物导致固化的环氧树脂量子点层中0.1至1重量%的最终量子点浓度。
溶液B(混杂的环氧树脂/甲基丙烯酸酯制剂)的组分示出于表2中。制备三种不同型式的溶液B,每种具有不同的甲基丙烯酸酯。所选的甲基丙烯酸酯为SR348、SR540和SR239,均得自宾夕法尼亚州埃克斯顿的沙多玛美国有限公司(Sartomer USA,LLC(Exton,PA))。Epon 824为购自俄亥俄州哥伦布的迈图特种化学品公司的环氧树脂。三种型式的溶液B中的每一种使用表2所示的甲基丙烯酸酯的量。Darocur 4265(光引发剂)购自密歇根州怀恩多特的巴斯夫树脂公司(BASF Resins(Wyandotte,MI))。除了固化剂部分B(具有15%的量子点的Epic RMX91B)之外,添加所有组分并混合在一起。将部分B在涂布之前即刻与溶液的其余部分混合。
表1
溶液A | ||
重量% | 量(g) | |
Epon 828 | 65.0% | 325.0 |
部分B | 35.0% | 1625.0 |
总计 | 100.0% | 500.0 |
表2
溶液B | ||
重量% | 量(g) | |
Epon 824 | 55.6% | 278.0 |
甲基丙烯酸酯 | 13.9% | 69.7 |
Darocur 4265 | 0.50% | 2.6 |
部分B | 29.9% | 149.7 |
总计 | 100.0% | 500.00 |
将溶液中的每一种混合并用刮刀式涂布机以50微米的厚度涂布于两个2密耳的硅隔离衬件之间。利用Fusion F600VPS***(得自马里兰州盖瑟斯堡的福盛美国***公司(Fusion US Systems Inc,Gaithersburg MD)),以30英尺/分钟的线速度和1.88焦/cm2的UV带的输出,用紫外线(UV)辐射来首先固化涂层,然后在220℉下的烘箱中热固化5分钟。然后,利用Mocon Permatran-W型号1/50G(购自明尼苏达州明尼阿波利斯的膜康公司(MoconCorporation,Minneapolis,MN))测量水蒸气传输速率(WVTR)。表3示出了溶液A和三种型式的溶液B的测试结果。相比于不具有甲基丙烯酸酯的涂布溶液A的膜,添加甲基丙烯酸酯非不利地影响膜的水蒸气阻隔性。
还将上述溶液用刮刀式涂布机以100微米的厚度涂布于两个5密耳的阻隔膜(作为FTB3-M-125商购自明尼苏达州圣保罗的3M公司(3M Company,St.Paul MN))之间。将涂层进行UV和热固化,如上所述。用T剥离测试(ASTM D1876-08)对这些带涂层的膜的样品进行粘合力测试。结果也示出于表3中。
表3
所用的甲基丙烯酸酯 | 无 | SR348 | SR540 | SR239 |
WVTR(20g/m2-密耳-天) | 25 | 25 | 29 | 51 |
剥离测试(g/in) | 24 | 22 | 21 | 81 |
制备类似于溶液B的溶液,不同的是将基于14%的SR348双酚A的二甲基丙烯酸酯用作甲基丙烯酸酯。利用得自特拉华州纽卡斯尔的TA仪器公司(TA Instruments(NewCastle,DE))的Discovery Hybrid Rheometer HR-2在固化之前和之后测量溶液的粘度。以40sec-1的剪切速率测量初始粘度。利用摆动技术测量UV固化之后的粘度。结果示出于表4中。观察到粘度的显著增加。此类粘度增加对显著减少在热固化期间可见的缺陷是有利的。
表4
样品ID | 初始粘度(cps) | UV固化之后的粘度(cps) |
Epon 824中14%的SR348 | 3200 | >1,000,000(胶化) |
实例2:如实例1制备对照溶液A用实例1的甲基丙烯酸酯溶液制备溶液B至G,不同的是,所用的甲基丙烯酸酯为5重量%至30重量%范围内的六种不同水平的SR348。所有溶液的组分示于表5中。
表5
将上述溶液混合并用刮刀式涂布机以50微米的厚度涂布于两个2密耳的硅隔离衬件之间,如前文所述,然后如实例1进行UV固化和热固化。如实例1测量水蒸气传输速率。结果示出于表6中。水蒸气传输性质对于甲基丙烯酸酯的量为相对不敏感的。
表6
实例3:制备两种溶液以比较具有和不具有量子点的膜的剥离强度性能。
溶液J以下表7中所述的比例制备,并且类似于先前制剂。溶液B是类似的,不同的是,部分B组分为不具有量子点浓缩物的Epic RMX91B。每种溶液的组分示于表7中。利用具有1/4英寸的前和后进料口的狭槽进料模具将两种溶液以20英尺/分钟涂布于实验涂布机上。部分A由DER362(得自密歇根州米德兰的陶氏化学公司的二环氧树脂(Dow Chemical,Midland,MI))、SR348和Darocur 4265组成,并且在氮条件下经由一个压力罐送入,并且部分B(具有或不具有量子点的Epic RMX91B)也在氮条件下通过另一个压力罐送入。将这两部分在送入模具之前送入静态搅拌器中。部分A对部分B的比率为2.3至1。将每种溶液涂布于2密耳的阻隔膜(先前描述)上,然后随即层合至另一个2密耳的阻隔膜。对于溶液J,将氮吹扫箱置于涂布头周围以确保涂布头处的氧气浓度保持低于50份每一百万份。将涂层如实例2进行UV固化,并留置以在室温下固化2天。然后将它们在90℃下的烘箱中固化2小时。如实例3中所述进行剥离测试。结果如表8所示。
表7
表8
溶液B | 溶液J | |
量子点 | 否 | 是 |
剥离强度(g/in) | 95 | 155 |
公开了本发明的实施例。所公开的实施例仅为举例说明而非限制之目的而给出。上述实施方式和其它实施方式均在以下权利要求书的范围内。本领域的技术人员将会知道,本发明可以通过除所公开的那些实施例之外的实施例进行实施。本领域的技术人员将会知道,可以在不脱离本发明基本原理的前提下对上述实施例和实施方式的细节作出许多改变。另外,在不脱离本发明的实质和范围的前提下,对本发明的各种变型和更改对本领域技术人员将是显而易见的。因此,本申请的范围应当仅由以下权利要求书确定。
Claims (21)
1.一种量子点膜制品,其包括:
第一阻隔膜;
第二阻隔膜;和
量子点层,所述量子点层使所述第一阻隔膜与所述第二阻隔膜分离,所述量子点层包含分散于聚合物材料中的量子点,所述聚合物材料包含甲基丙烯酸酯聚合物、环氧树脂聚合物和光引发剂;其中所述甲基丙烯酸酯聚合物占所述量子点层的5至25重量%。
2.根据权利要求1所述的量子点膜制品,其中所述甲基丙烯酸酯聚合物构成10至20重量%的所述量子点层。
3.根据权利要求1所述的量子点膜制品,其中所述环氧树脂聚合物构成70至90重量%的所述量子点层。
4.根据权利要求1所述的量子点膜制品,其中所述环氧树脂聚合物包括环氧胺聚合物。
5.根据权利要求1所述的量子点膜制品,其中所述环氧树脂聚合物具有1.48至1.60的折射率。
6.根据权利要求1所述的量子点膜制品,其中所述环氧树脂聚合物包含具有1至10微米范围内的平均粒度的散射粒子。
7.根据权利要求1所述的量子点膜制品,其中所述甲基丙烯酸酯聚合物通过双或三官能甲基丙烯酸酯聚合物前体的辐射聚合来形成。
8.根据权利要求1所述的量子点膜制品,其中所述环氧树脂聚合物通过双官能胺和二环氧化物的热聚合来形成。
9.一种形成量子点膜制品的方法,其包括:
将量子点材料涂布于第一阻隔层上,所述量子点材料包含:
量子点、
光引发剂、
5至25重量%的甲基丙烯酸酯聚合物前体,和
70至90重量%的环氧树脂聚合物前体;
所述量子点材料在第一温度下具有第一粘度;以及
将第二阻隔层设置在所述量子点材料上。
10.根据权利要求9所述的方法,其还包括使所述甲基丙烯酸酯聚合物前体聚合以形成部分固化的量子点材料。
11.根据权利要求10所述的方法,其还包括使所述部分固化的量子点材料的所述环氧树脂聚合物前体聚合以形成固化的量子点材料。
12.根据权利要求10所述的方法,其中使所述甲基丙烯酸酯聚合物前体聚合包括使所述甲基丙烯酸酯聚合物前体辐射聚合。
13.根据权利要求11所述的方法,其中使所述环氧树脂聚合物前体聚合包括使所述环氧树脂聚合物前体热聚合。
14.根据权利要求10所述的方法,其中使所述甲基丙烯酸酯聚合物前体聚合形成了这样的部分固化的量子点材料,该量子点材料在所述第一温度下具有第二粘度,所述第二粘度比所述第一粘度大至少10倍。
15.根据权利要求10所述的方法,其中使所述甲基丙烯酸酯聚合物前体聚合形成了这样的部分固化的量子点材料,该量子点材料在所述第一温度下具有第二粘度,所述第二粘度比所述第一粘度大至少20倍。
16.根据权利要求9所述的方法,其中所述第一粘度小于10000厘泊。
17.根据权利要求14所述的方法,其中所述第二粘度大于100000厘泊。
18.根据权利要求9所述的方法,其中所述环氧树脂聚合物前体包含双官能胺和二环氧化物。
19.根据权利要求9所述的方法,其中所述甲基丙烯酸酯聚合物前体包括双或三官能甲基丙烯酸酯聚合物前体。
20.一种量子点材料,其包含:
量子点;
光引发剂;
5至25重量%的甲基丙烯酸酯聚合物前体;和
70至90重量%的环氧树脂聚合物前体。
21.根据权利要求20所述的量子点材料,其中所述甲基丙烯酸酯聚合物前体为UV可固化甲基丙烯酸酯聚合物前体,并且所述环氧树脂聚合物前体为可热固化环氧树脂聚合物前体。
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TWI643934B (zh) | 2018-12-11 |
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