CN105733457A - 一种具有长效夜光功能的太阳能电池封装胶膜 - Google Patents
一种具有长效夜光功能的太阳能电池封装胶膜 Download PDFInfo
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- CN105733457A CN105733457A CN201610270457.3A CN201610270457A CN105733457A CN 105733457 A CN105733457 A CN 105733457A CN 201610270457 A CN201610270457 A CN 201610270457A CN 105733457 A CN105733457 A CN 105733457A
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Abstract
本发明公开了一种具有长效夜光功能的太阳能电池封装胶膜，该胶膜含有金属硫化物、稀土离子掺杂的碱土铝酸盐、稀土离子掺杂的碱土硅酸盐或稀土离子掺杂Y2O2S的长余辉材料。此长余辉材料的粒径小于300纳米，且经过表面的有机修饰，因此可以在基体树脂中很好的分散，不会造成胶膜的透光率降低。胶膜中的长余辉材料将白天太阳能电池没有利用到的紫外线和可见光的能量蓄积起来，夜晚发射出可见光，且时间持续10小时以上，供太阳能电池继续发电。日积月累，为光伏系统提供更多的发电量，提高光伏发电的效率。
Description
技术领域
本发明属于光伏封装材料领域，尤其涉及一种具有长效夜光效果的聚合物胶膜。
背景技术
太阳能光伏发电作为一种清洁、可持续的新能源正逐渐进入人类能源结构。然而，众所周知，太阳能电池只有在白天才能发电，夜晚没有光线是不能发电的。另外，即使在白天正常发电的时间段里，也有大量的紫外线和可见光没有被利用到。因此，如何提高发电效率一直是光伏行业首要解决的技术问题。
发明内容
本发明的目的在于针对现有技术的不足，提供一种具有长效夜光功能的太阳能电池封装胶膜。该胶膜白天吸收没有利用到的紫外线，将这部分能量蓄积起来，夜晚发出可见光，且发光时间持续10小时以上。使用这种胶膜封装的太阳能电池组件在发电功率方面不受影响，但是发电时间极大延长，提高累计发电量。
本发明通过以下技术方案实现：一种具有长效夜光功能的太阳能电池封装胶膜，它通过以下方法制备得到：将100重量份的基体树脂、0.1～5重量份的长余辉材料、0.01～1.5重量份的过氧化物引发剂、0.5～10重量份的助交联剂、0.1～5重量份的硅烷偶联剂、0.01～5重量份光稳定剂、0.05～5重量份的抗氧剂混合均匀后，用双螺杆挤出机挤出造粒，将造好的粒子用单螺杆挤出机挤出流延成膜，或是压延成膜。
一种具有长效夜光功能的太阳能电池封装胶膜，通过以下方法制备得到：将100重量份的基体树脂、0.1～5重量份的长余辉材料、0.01～1.5重量份的过氧化物引发剂、0.1～5重量份的硅烷偶联剂混合均匀后，通过双螺杆挤出机在180℃以上的高温下挤出造粒，此过程包含硅烷偶联剂的接枝反应和长余辉材料在基体树脂中均匀分散两个过程；将接枝好、且均匀混合长余辉材料的树脂粒子通过单螺杆挤出机挤出流延成膜，或是压延成膜。
进一步地，所述的长余辉材料由金属硫化物、稀土离子掺杂的碱土铝酸盐、稀土离子掺杂的碱土硅酸盐和稀土离子掺杂的Y2O2S中的一种或多种按任意配比混合组成。
进一步地，所述的长余辉材料由稀土离子掺杂的碱土铝酸盐、稀土离子掺杂的碱土硅酸盐中的一种或两种按任意配比混合组成。
进一步地，所述的稀土离子掺杂的铝酸盐可表示为MeAl2O4：Eu2+，或者表示为MeAl14O25：Eu2+；其中，Me为碱土金属Mg、Ca、Sr、Ba中的任意一种。
进一步地，所述的稀土离子掺杂的铝酸盐可表示为MeAl2O4：Eu2+，Re3+，或者表示为MeAl14O25：Eu2+，Re3+，或者表示为SrAl2O4：Eu2+，Dy3+；其中，Me为碱土金属Mg、Ca、Sr、Ba中的任意一种；Re3+为Nd3+、Dy3+、Ho3+、Er3+中的一种。
进一步地，所述的稀土离子掺杂的碱土硅酸盐为二价铕离子和三价非铕的稀土离子共掺杂的硅酸镁锶，表示为SrMgSi2O7：Eu2+，Re3+，其中，Re3+为Nd3+、Dy3+、Ho3+、Er3+中的任意一种；或者所述的稀土离子掺杂的碱土硅酸盐为SrMgSi2O7：Eu2+，Dy3+。
进一步地，所述的长余辉材料为粒径小于300纳米的粉体；所述的长余辉材料表面经过氨基硅烷偶联剂修饰。
进一步地，所述的基体树脂为VA含量在15～35wt％的EVA、乙烯含量在20～30wt％的乙烯-α烯烃共聚物、MA含量在15～35wt％的EMA中的任意一种。
进一步地，所述的基体树脂为乙烯含量在20～30wt％的乙烯-α烯烃共聚物、丙烯含量在20～30wt％的丙烯-α烯烃共聚物、聚乙烯醇缩丁醛、离子聚合物、聚氨酯弹性体、有机硅橡胶中的任意一种。
本发明的有益效果：本发明所提供的长效夜光胶膜含有长余辉材料，此长余辉材料的粒径(D90)小于300纳米，且经过表面的有机修饰，因此可以在基体树脂中很好的分散，不会造成胶膜的透光率降低。胶膜中的长余辉材料将白天太阳能电池没有利用到的紫外线和可见光的能量蓄积起来，夜晚发射出可见光，且时间持续10小时以上，供太阳能电池继续发电。日积月累，为光伏系统提供更多的发电量，提高光伏发电的效率。
具体实施方式
本发明具有长效夜光功能的太阳能电池封装胶膜，可以通过如下两种方式制备得到：一，将100重量份的基体树脂、0.1～5重量份的长余辉材料、0.01～1.5重量份的过氧化物引发剂、0.5～10重量份的助交联剂、0.1～5重量份的硅烷偶联剂、0.01～5重量份光稳定剂、0.05～5重量份的抗氧剂混合均匀后，用双螺杆挤出机挤出造粒，将造好的粒子用单螺杆挤出机挤出流延成膜，或是压延成膜。这种方法所制备的胶膜属于交联型胶膜。二，将100重量份的基体树脂、0.1～5重量份的长余辉材料、0.01～1.5重量份的过氧化物引发剂、0.1～5重量份的硅烷偶联剂混合均匀后，通过双螺杆挤出机高温挤出造粒，此过程包含硅烷偶联剂的接枝反应和长余辉材料在基体树脂中均匀分散两个过程。将接枝好、且均匀混合长余辉材料的树脂粒子通过单螺杆挤出机挤出流延成膜，或是压延成膜。这种方法所制备的胶膜属于热塑型胶膜。
所述的基体树脂由乙烯-醋酸乙烯酯共聚物、乙烯-α烯烃共聚物、丙烯-α烯烃共聚物、乙烯-甲基丙烯酸甲酯共聚物、聚乙烯醇缩丁醛、离子聚合物、聚氨酯弹性体、有机硅橡胶中的任意一种或多种按照任意配比组成。
第一种制备方式中所用的基体树脂优选为VA含量在15～35wt％的EVA、乙烯含量在20～30wt％的乙烯-α烯烃共聚物、MA含量在15～35wt％的EMA中的任意一种。
第二种制备方式中所用的基体树脂优选为乙烯含量在20～30wt％的乙烯-α烯烃共聚物、丙烯含量在20～30wt％的丙烯-α烯烃共聚物、聚乙烯醇缩丁醛、离子聚合物、聚氨酯弹性体、有机硅橡胶中的任意一种。
所述的长余辉材料为金属硫化物、稀土离子掺杂的碱土铝酸盐、稀土离子掺杂的碱土硅酸盐和稀土离子掺杂的Y2O2S中的一种或多种混合物。优选为稀土离子掺杂的碱土铝酸盐和稀土离子掺杂的碱土硅酸盐，更优选为稀土离子掺杂的碱土硅酸盐。
所述的长余辉材料为粒径(D90)小于300纳米的粉体。
所述的长余辉材料表面经过有机物修饰，使其较容易分散于基体树脂。所述的有机物优选为氨基硅烷偶联剂。
所述的金属硫化物为变价金属激活的硫化物。所述的变价金属有Cu、Ag、Bi、Mn。所述的硫化物为ZnS、SrS、CaS。
所述的稀土离子掺杂的Y2O2S可表示为Y2O2S：Eu3+，或者为Y2O2S：Eu3+，Me2+,Si4+.。其中Me为碱土金属(Mg、Ca、Sr、Ba)。
所述的稀土离子掺杂的碱土铝酸盐为二价铕离子掺杂的碱土铝酸盐，表示为MeAl2O4：Eu2+或MeAl14O25：Eu2+，其中，Me为碱土金属Mg、Ca、Sr、Ba中的一种，优选为Sr。或者所述的稀土离子掺杂的碱土铝酸盐是二价铕离子和三价非铕的稀土离子共掺杂的碱土铝酸盐，表示为MeAl2O4：Eu2+，Re3+，或MeAl14O25：Eu2+，Re3+其中，Me为碱土金属Mg、Ca、Sr、Ba中的一种，优选为Sr；Re3+为Nd3+、Dy3+、Ho3+、Er3+中的一种，优选为Dy3+。
所述的稀土离子掺杂的碱土硅酸盐为二价铕离子和三价非铕的稀土离子共掺杂的硅酸镁锶，表示为SrMgSi2O7：Eu2+，Re3+。其中，Re3+为Nd3+、Dy3+、Ho3+、Er3+中的一种，优选为Dy3+。
所述的过氧化物引发剂由下列一种或多种按照任意配比混合组成：叔丁基过氧化碳酸异丙酯、2，5-二甲基-2，5－双(叔丁过氧基)己烷、1-双(过氧化叔丁基)-3，3，5-三甲基环己烷、叔丁基过氧化碳酸-2-乙基己酯、2，5-二甲基-2，5-二(叔丁基过氧化)己烷、1,1-双(叔丁基过氧)-3,3,5-三甲基环己烷、1,1-双(叔戊基过氧)-3,3,5-三甲基环己烷、1,1-双(叔戊基过氧)环己烷、1,1-双(叔丁基过氧)环己烷、2,2-双(叔丁基过氧)丁烷、过氧化2-乙基己基碳酸叔戊酯、2,5-二甲基2,5-双(苯甲酰过氧)-己烷、过氧化碳酸叔戊酯、过氧化3,3,5三甲基己酸叔丁酯。
所述助交联剂为多官能团的丙烯酸酯或甲基丙烯酸酯类，可为下列中的一种或多种按照任意配比组成：三(2-羟乙基)异氰脲酸三丙烯酸酯、三羟甲基丙烷三丙烯酸酯、季戊四醇三丙烯酸酯、三羟甲基丙烷三甲基丙烯酸酯、季戊四醇四丙烯酸酯、乙氧化季戊四醇四丙烯酸酯、三羟甲基丙烷四丙烯酸酯、乙氧化三羟甲基丙烷三丙烯酸酯、丙氧化三羟甲基丙烷三丙烯酸酯、乙氧化甘油三丙烯酸酯、丙氧化甘油三丙烯酸酯、双三羟甲基丙烷四丙烯酸酯、双三羟甲基丙烷四甲基丙烯酸酯、丙氧化季戊四醇四丙烯酸酯、2,4,6-三(2-丙烯基氧基)-1,3,5-三嗪、三环葵烷二甲醇二丙烯酸酯、丙氧化新戊二醇二丙烯酸酯、乙氧化双酚A二丙烯酸酯、乙氧化双酚A二甲基丙烯酸酯、2-丁基-2-乙基-1,3-丙二醇二丙烯酸酯、二乙二醇二甲基丙烯酸酯、三乙二醇二甲基丙烯酸酯、聚乙二醇二甲基丙烯酸酯。
所述硅烷偶联剂可为下列中的一种或几种按照任意配比组成：γ-氨丙基三乙氧基硅烷、γ-甲基丙烯酰氧基丙基三甲氧基硅烷、γ―(2,3-环氧丙氧)丙基三甲氧基硅烷、乙烯基三甲氧基硅烷、N-(β-氨乙基)-γ-氨丙基三甲氧基硅烷。
所述光稳定剂为常规用于封装胶膜的光稳定剂，可为下列中的一种或多种按照任意配比组成：癸二酸双-2,2,6,6-四甲基哌啶醇酯、2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪、双-1-癸烷氧基-2,2,6,6-四甲基哌啶-4-醇癸二酸酯、丁二酸和4-羟基-2,2,6,6-四甲基-1-哌啶醇的聚合物、N,N’-双(2,2,6,6-四甲基-4-哌啶基)-1,6-己二胺和2,4-二氯-6-(1,1,3,3-四甲基丁基)氨基-1,3,5-三嗪的聚合物、N,N’-双(2,2,6,6-四甲基-4-哌啶基)-1,6-己二胺和2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪的聚合物、N,N’-双(1,2,2,6,6-五甲基-4-哌啶基)-1,6-己二胺和吗啉-2,4,6-三氯-1,3,5-三嗪的聚合物、双(1,2,2,6,6-五甲基-4-哌啶基)癸二酸酯/甲基-1,2,2,6,6-五甲基-4-哌啶基癸二酸酯复配物或丁二酸与(4-羟基-2,2,6,6-四甲基-1-哌啶醇)的聚合物。优选为癸二酸双-2,2,6,6-四甲基哌啶醇酯或2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪。
所述抗氧剂为本领域常用的封装材料抗氧剂，如酚类或亚磷酸酯类抗氧剂。
下面结合具体实施例对本发明作进一步描述，但本发明的保护范围并不仅限于此。
实施例1：
按质量份数计，VA含量为28wt％的EVA100份，经氨基硅烷偶联剂表面处理的SrAl2O4：Eu2+0.1份，叔丁基过氧化碳酸-2-乙基己酯0.5份，三烯丙基异氰尿酸酯0.7份，γ-甲基丙烯酰氧基丙基三甲氧基硅烷0.3份，2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪0.1份经过预混合后用双螺杆挤出机挤出造粒。将造好的粒子用单螺杆挤出机挤出，挤出物经流延成膜，冷却后收卷得到厚度为0.5mm的胶膜，记为S1。
实施例2：
按质量份数计，VA含量为28wt％的EVA100份，经氨基硅烷偶联剂表面处理的SrAl2O4：Eu2+2份，叔丁基过氧化碳酸-2-乙基己酯0.5份，三烯丙基异氰尿酸酯0.7份，γ-甲基丙烯酰氧基丙基三甲氧基硅烷0.3份，2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪0.1份经过预混合后用双螺杆挤出机挤出造粒。将造好的粒子用单螺杆挤出机挤出，挤出物经流延成膜，冷却后收卷得到厚度为0.5mm的胶膜，记为S2。
实施例3：
按质量份数计，VA含量为28wt％的EVA100份，经氨基硅烷偶联剂表面处理的SrAl2O4：Eu2+5份，叔丁基过氧化碳酸-2-乙基己酯0.5份，三烯丙基异氰尿酸酯0.7份，γ-甲基丙烯酰氧基丙基三甲氧基硅烷0.3份，2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪0.1份经过预混合后用双螺杆挤出机挤出造粒。将造好的粒子用单螺杆挤出机挤出，挤出物经流延成膜，冷却后收卷得到厚度为0.5mm的胶膜，记为S3。
实施例4：
按质量份数计，乙烯含量为75wt％的乙烯-辛烯共聚物100份，经氨基硅烷偶联剂表面处理的SrAl2O4：Eu2+，Dy3+2份，叔丁基过氧化碳酸-2-乙基己酯0.5份，三烯丙基异氰尿酸酯0.7份，γ-甲基丙烯酰氧基丙基三甲氧基硅烷0.3份，2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪0.1份经过预混合后用双螺杆挤出机挤出造粒。将造好的粒子用单螺杆挤出机挤出，挤出物经流延成膜，冷却后收卷得到厚度为0.5mm的胶膜，记为S4。
实施例5：
按质量份数计，乙烯含量为75wt％的乙烯-辛烯共聚物100份，经氨基硅烷偶联剂表面处理的SrMgSi2O7：Eu2+，Dy3+2份，叔丁基过氧化碳酸-2-乙基己酯0.08份，乙烯基三甲氧基硅烷1.6份预混合后用双螺杆挤出机200℃下熔融挤出造粒。将造好的粒子用单螺杆挤出机挤出，挤出物经流延成膜，冷却后收卷得到厚度为0.5mm的胶膜，记为S5。
实施例6：
按质量份数计，乙烯含量为70wt％的乙烯-丁烯共聚物100份，经氨基硅烷偶联剂表面处理的ZnS:Cu1份，叔丁基过氧化碳酸-2-乙基己酯0.08份，乙烯基三甲氧基硅烷1.6份预混合后用双螺杆挤出机200℃下熔融挤出造粒。将造好的粒子用单螺杆挤出机挤出，挤出物经流延成膜，冷却后收卷得到厚度为0.5mm的胶膜，记为S6。
实施例7：
按质量份数计，乙烯含量为70wt％的乙烯-丁烯共聚物100份，经氨基硅烷偶联剂表面处理的Y2O2S：Eu3+,Mg2+,Si4+.0.5份，叔丁基过氧化碳酸-2-乙基己酯0.08份，乙烯基三甲氧基硅烷1.6份预混合后用双螺杆挤出机200℃下熔融挤出造粒。将造好的粒子用单螺杆挤出机挤出，挤出物经流延成膜，冷却后收卷得到厚度为0.5mm的胶膜，记为S7。
比较例1：
按质量份数计，VA含量为28wt％的EVA100份，叔丁基过氧化碳酸-2-乙基己酯0.5份，三烯丙基异氰尿酸酯0.7份，γ-甲基丙烯酰氧基丙基三甲氧基硅烷0.3份，2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪0.1份经过预混合后用双螺杆挤出机挤出造粒。将造好的粒子用单螺杆挤出机挤出，挤出物经流延成膜，冷却后收卷得到厚度为0.5mm的胶膜，记为C1。
比较例2：
按质量份数计，乙烯含量为75wt％的乙烯-辛烯共聚物100份，叔丁基过氧化碳酸-2-乙基己酯0.5份，三烯丙基异氰尿酸酯0.7份，γ-甲基丙烯酰氧基丙基三甲氧基硅烷0.3份，2,4-二氯-6-(4-吗啉基)-1,3,5-三嗪0.1份经过预混合后用双螺杆挤出机挤出造粒。将造好的粒子用单螺杆挤出机挤出，挤出物经流延成膜，冷却后收卷得到厚度为0.5mm的胶膜，记为C2。
通过上述实施例和比较例制备的封装胶膜，按照相同的工艺进行封装太阳能电池组件。同一种胶膜封装四块组件，为一个模块。所封装的组件为标准的60片15.6cm×15.6cm多晶硅电池，且为同一厂家，同一批次，同一档次。
将制作好的组件模块放置户外发电，每隔一段时间检测每个模块的累计发电量。所得数据如表1。
表1：实施例和比较例胶膜封装的组件模块累计发电量，单位:kWh
| S1 | S2 | S3 | S4 | S5 | S6 | S7 | C1 | C2 | |
| 2015.11.23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2015.12.21 | 46.9 | 48.9 | 47.1 | 48 | 48.1 | 46.9 | 46.8 | 46.2 | 46 |
| 2016.01.26 | 109.3 | 115.3 | 111.1 | 114.3 | 114.9 | 109.6 | 109.2 | 108.5 | 107.9 |
| 2016.02.26 | 186 | 193.8 | 189.6 | 192 | 192.6 | 185.3 | 185.1 | 184.2 | 183.0 |
| 2016.03.24 | 264.3 | 273.7 | 268.1 | 270 | 271.5 | 264.6 | 264.3 | 262.2 | 260.1 |
| 2016.04.19 | 336 | 346.4 | 339.5 | 341.8 | 342.5 | 336.2 | 335.8 | 333.6 | 331.2 |
从表1可以看出，本发明添加有长余辉材料的长效夜光胶膜，能够使光伏发电系统累计发电量逐渐增加，实现有益效果。
最后应该说明的是：以上实施例仅用以说明本发明而非限制本发明所描述的技术方案；因此，尽管本说明书参照上述的各个实施例对本发明已进行了详细的说明，但是，本领域的普通技术人员应当理解，仍然可以对本发明进行修改或等同替换；而一切不脱离本发明精神和范围的技术方案及其改进，其均应覆盖在本发明的权利要求范围中。
Claims (10)
1.一种具有长效夜光功能的太阳能电池封装胶膜，其特征在于，它通过以下方法制备得到：将100重量份的基体树脂、0.1～5重量份的长余辉材料、0.01～1.5重量份的过氧化物引发剂、0.5～10重量份的助交联剂、0.1～5重量份的硅烷偶联剂、0.01～5重量份光稳定剂、0.05～5重量份的抗氧剂混合均匀后，用双螺杆挤出机挤出造粒，将造好的粒子用单螺杆挤出机挤出流延成膜，或是压延成膜。
2.一种具有长效夜光功能的太阳能电池封装胶膜，其特征在于，通过以下方法制备得到：将100重量份的基体树脂、0.1～5重量份的长余辉材料、0.01～1.5重量份的过氧化物引发剂、0.1～5重量份的硅烷偶联剂混合均匀后，通过双螺杆挤出机在180℃以上的高温下挤出造粒，此过程包含硅烷偶联剂的接枝反应和长余辉材料在基体树脂中均匀分散两个过程；将接枝好、且均匀混合长余辉材料的树脂粒子通过单螺杆挤出机挤出流延成膜，或是压延成膜。
3.根据权利要求1和权利要求2所述的具有长效夜光功能的太阳能电池封装胶膜，其特征在于，所述的长余辉材料由金属硫化物、稀土离子掺杂的碱土铝酸盐、稀土离子掺杂的碱土硅酸盐和稀土离子掺杂的Y2O2S中的一种或多种按任意配比混合组成。
4.根据权利要求3所述的具有长效夜光功能的太阳能电池封装胶膜，其特征在于，所述的长余辉材料由稀土离子掺杂的碱土铝酸盐、稀土离子掺杂的碱土硅酸盐中的一种或两种按任意配比混合组成。
5.根据权利要求3所述的具有长效夜光功能的太阳能电池封装胶膜，其特征在于，所述的稀土离子掺杂的铝酸盐可表示为MeAl2O4：Eu2+，或者表示为MeAl14O25：Eu2+；其中，Me为碱土金属Mg、Ca、Sr、Ba中的任意一种。
6.根据权利要求3所述的具有长效夜光功能的太阳能电池封装胶膜，其特征在于，所述的稀土离子掺杂的铝酸盐可表示为MeAl2O4：Eu2+，Re3+，或者表示为MeAl14O25：Eu2+，Re3+，或者表示为SrAl2O4：Eu2+，Dy3+；其中，Me为碱土金属Mg、Ca、Sr、Ba中的任意一种；Re3+为Nd3+、Dy3+、Ho3+、Er3+中的一种。
7.根据权利要求3所述的长余辉材料，其特征在于，所述的稀土离子掺杂的碱土硅酸盐为二价铕离子和三价非铕的稀土离子共掺杂的硅酸镁锶，表示为SrMgSi2O7：Eu2+，Re3+，其中，Re3+为Nd3+、Dy3+、Ho3+、Er3+中的任意一种；或者所述的稀土离子掺杂的碱土硅酸盐为SrMgSi2O7：Eu2+，Dy3+。
8.根据权利要求1或权利要求2所述的具有长效夜光功能的太阳能电池封装胶膜，其特征在于，所述的长余辉材料为粒径小于300纳米的粉体；所述的长余辉材料表面经过氨基硅烷偶联剂修饰。
9.根据权利要求1所述的具有长效夜光功能的太阳能电池封装胶膜，其特征在于，所述的基体树脂为VA含量在15～35wt％的EVA、乙烯含量在20～30wt％的乙烯-α烯烃共聚物、MA含量在15～35wt％的EMA中的任意一种。
10.根据权利要求2所述的具有长效夜光功能的太阳能电池封装胶膜，其特征在于，所述的基体树脂为乙烯含量在20～30wt％的乙烯-α烯烃共聚物、丙烯含量在20～30wt％的丙烯-α烯烃共聚物、聚乙烯醇缩丁醛、离子聚合物、聚氨酯弹性体、有机硅橡胶中的任意一种。
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Address after: 311300 Ling'an Province, Hangzhou City, Jin Jin Bao street, North Street Applicant after: Hangzhou Forster applied materials Limited by Share Ltd Address before: 311300 Ling'an Province, Hangzhou City, Jin Jin Bao street, North Street Applicant before: Hangzhou First PV Material Co., Ltd. |
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