CN104497386B - 一种发光膜 - Google Patents
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Abstract
本发明公开了一种发光膜,其由以下重量份数组份组成:聚乙烯40‑80份、发光材料10‑30份、抗老化剂0.5‑5份、表面活性剂1‑6份。所述发光材料包括如下重量份数的组份:蓝色发光材料2‑10份、紫色发光材料1‑5份、红色发光材料5‑20份、橙红色发光材料1‑6份。所述发光材料白天吸收各种可见光及紫外线,在傍晚或黑暗处可以持续发出由蓝色、紫色、红色和橙红色组成的混合光。本发光膜应用到农业生产上,可延长农作物的光照时间,显著增强其光合作用,促进农作物的生长发育和果实干物质的积累,利于果实质量和果肉厚度的增加,起到促进果实增产和提前成熟上市的作用。
Description
技术领域
本发明涉及一种发光膜,特别涉及一种可用于农业生产上的发光膜。
背景技术
长余辉发光是一种光致发光现象,是指在激发光停止照射后物质仍能持续发光的现象。长余辉发光材料简称长余辉材料,又称夜光材料。它是一类吸收太阳或人工光源所产生的光发出可见光,而且在激发停止后仍可继续发光的物质。它具有利用阳光或灯光储光,夜晚或在黑暗处发光的特点,是一种储能、节能的发光材料。由于长余辉发光材料夜晚发光的特点,在航空仪表和汽车仪表的字盘显示器、发光涂料、发光油墨、消防安全装置、发光陶瓷等很多领域都有广泛的应用。
但是,虽然我国发光材料在世界上具有先进的技术水平,但发光材料及其应用水平仍然赶不上欧美、日本等其他国家。所以,发光材料的应用领域还有待我们去开发。
发明内容
有鉴于此,本发明提供了一种发光膜,白天吸收太阳所产生的光,夜晚长时间的释放出红、橙红、蓝、紫等可以被绿色素强烈吸收的光。本发光膜通过延长植物的光照时间,增加其光合作用,促进植物生长发育,果实表面的上色,果实果肉的积累,含糖量的增加,从而显著提高了果实的产量和品质。
本发明采用的技术方案是:
本发明是在聚乙烯树脂基础上添加发光材料制成的,但是聚乙烯在太阳能的紫外辐射下会引发聚合物的光氧化,从而导致高聚物的降解而老化,所以在本发光膜的的制作过程中添加了抗老化剂,以提高膜的使用时间。此外,本发光膜还加入了表面活性剂,提高聚乙烯膜的临界表面张力,可以使凝聚在膜内的水珠展开,并顺着膜壁流入地面,达到防雾及增加薄膜透光率的目的。
一种发光膜,其包覆在植物体或果实的外侧,其特征在于,该发光膜由以下重量份数组份组成:聚乙烯40-80份、发光材料10-30份、抗老化剂0.5-5份、表面活性剂1-6份。
所述发光材料包括如下重量份数的组份:蓝色发光材料2-10份、紫色发光材料1-5份、红色发光材料5-20份、橙红色发光材料1-6份。
所述发光材料白天吸收各种可见光及紫外线,在傍晚或黑暗处可以持续发出由蓝色、紫色、红色和橙红色组成的混合光。
所述蓝色发光材料是CaAl2O4:Eu0.15,Dy0.2,所述紫色发光材料是SrAl12O19:Eu0.1,Dy0.2,所述红色发光材料是Y2O2S:Eu0.05,Ti0.2,Mg0.15或MgSiO3:Mn0.05,Eu0.1,Dy0.2中的一种,所述橙红色发光材料是Y2O2S:Sm0.05。
所述发光材料优选加入的重量份数组份的组成为CaAl2O4:Eu0.15,Dy0.2 5-8份、SrAl12O19:Eu0.1,Dy0.2 1-3份、Y2O2S:Eu0.05,Ti0.2,Mg0.15 10-15份、Y2O2S:Sm0.05 2-5份。最优的重量份数组份的组成为CaAl2O4:Eu0.15,Dy0.2 6份、SrAl12O19:Eu0.1,Dy0.2 2份、Y2O2S:Eu0.05,Ti0.2,Mg0.15 15份、Y2O2S:Sm0.05 4份。
所述抗老化剂为N,N’-双-(3-(3,5-二叔丁基-4-羟基苯基)丙酰基)已二胺、β-(3,5-二叔丁基-4-羟基苯基)丙酸正十八碳醇酯、三(2,4-二叔丁基苯基)亚磷酸酯或N-(乙氧基羰基苯基)-N’-甲基-N’-苯基甲脒。
所述表面活性剂为山梨糖醇酐单月桂酸酯、山梨糖醇酐单棕榈酸酯、聚氧乙烯单月桂酸酯、聚氧乙烯甘油单硬脂酸酯或聚氧乙烯甘油单油酸酯。
上述材料混合均匀吹塑成膜后,制得的发光膜厚度在0.02-0.2mm,透光率为85-95%。
本发明的有益效果是:
本发光膜可用于农用大棚膜或果实套袋的制作,白天吸收太阳光中的紫外线,夜晚长时间的释放出红、橙红、蓝、紫等颜色的光。可见光中的蓝光和紫光对植物生长和幼芽的形成有很大作用,是叶绿素吸收最多的光,表现为强的光合作用和成型作用,红光和橙光可以被叶绿素强烈吸收,光合作用最强,此外,红光还有促进叶绿素形成的作用。
本发光膜应用到农业生产上,可延长农作物的光照时间,显著增强其光合作用,促进农作物的生长发育和果实干物质的积累,利于果实质量和果肉厚度的增加,起到促进果实增产和提前成熟上市的作用。
具体实施方式
下面结合具体实施例对本发明做进一步的详细说明,以令本领域技术人员参照说明书文字能够据以实施。需要理解的是,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
实施例1(农用大棚膜):
A组:发光膜的重量份数组份为:聚乙烯71份、CaAl2O4:Eu0.15,Dy0.2 5份、SrAl12O19:Eu0.1,Dy0.2 1份、Y2O2S:Eu0.05,Ti0.2,Mg0.15 18份、Y2O2S:Sm0.05 2份、N,N’-双-(3-(3,5-二叔丁基-4-羟基苯基)丙酰基)已二胺1份、山梨糖醇酐单棕榈酸酯2份,上述材料混合均匀吹塑成膜后,制得的发光膜的厚度为0.06mm,透光率为90%;
B组:不加发光材料,其余同A组,膜厚度为0.06mm,透光率为91%。
采取随机区组设计,10株西红柿为一小区,A、B组分别选取3个小区进行对比试验,膜的使用时间都可以达到20个月,都无结露滴状况,但A组对西红柿生长的促进作用更为显著。在成熟期,A组与B组相比,A组平均单株株高增加15%,单株叶片数增加12%,平均可以提前1周进行采摘上市,产量提高20%,单果质量提高15%。
实施例2(农用大棚膜):
A组:发光膜的重量份数组份为:聚乙烯72份、CaAl2O4:Eu0.15,Dy0.2 6份、SrAl12O19:Eu0.1,Dy0.2 2份、MgSiO3:Mn0.05,Eu0.1,Dy0.2 12份、Y2O2S:Sm0.05 4份、N-(乙氧基羰基苯基)-N’-甲基-N’-苯基甲脒3份、山梨糖醇酐单月桂酸酯1份,上述材料混合均匀吹塑成膜后,制得的发光膜的厚度为0.1mm,透光率为91%;
B组:不加发光材料,其余同A组,膜厚度为0.1mm,透光率为90%。
采取随机区组设计,10株茄子为一小区,A、B组分别选取3个小区进行对比试验,,膜的使用时间都可以达到26个月,都无结露滴状况,但A组对茄子生长的促进作用更为显著。在成熟期,A组与B组相比,A组平均单株株高增加12%,单株叶片数增加18%,平均可以提前10天进行采摘上市,产量提高15%,单果质量提高16%。
实施例3(农用大棚膜):
A组:发光膜的重量份数组份为:聚乙烯64份、CaAl2O4:Eu0.15,Dy0.2 8份、SrAl12O19:Eu0.1,Dy0.2 4份、MgSiO3:Mn0.05,Eu0.1,Dy0.2 15份、Y2O2S:Sm0.05 2份、β-(3,5-二叔丁基-4-羟基苯基)丙酸正十八碳醇酯2份、聚氧乙烯单月桂酸酯5份,上述材料混合均匀吹塑成膜后,制得的发光膜的厚度为0.12mm,透光率为89%;
B组:不加发光材料,其余同A组,膜厚度为0.12mm,透光率为90%。
采取随机区组设计,10株黄瓜为一小区,A、B组分别选取3个小区进行对比试验,膜的使用时间都可以达到30个月,都无结露滴状况,但A组对黄瓜生长的促进作用更为显著。在成熟期,A组与B组相比,A组平均单株株高增加15%,单株叶片数增加17%,平均可以提前15天进行采摘上市,产量提高23%,单果质量提高15%。
实施例4(水果套袋):
A组:发光膜的重量份数组份为:聚乙烯70份、CaAl2O4:Eu0.15,Dy0.2 6份、SrAl12O19:Eu0.1,Dy0.2 2份、Y2O2S:Eu0.05,Ti0.2,Mg0.15 12份、Y2O2S:Sm0.05 3份、三(2,4-二叔丁基苯基)亚磷酸酯5份、聚氧乙烯甘油单硬脂酸酯2份,上述材料混合均匀吹塑成膜后,制得的发光膜的厚度为0.04mm,透光率为95%;
B组:不加发光材料,其余同A组,膜厚度为0.04mm,透光率为96%。
随机分别选取两组苹果树(每组10株)进行对比实验,由该发光膜制作的水果套袋都可以可重复使用3次,都无结露滴状况,但A组对苹果生长的促进作用更为显著。在成熟期,A组与B组相比,A组平均可以提前20天进行采摘上市,产量提高28%,单果质量提高19%,果糖、葡萄糖和蔗糖含量平均提高12%,苹果表面颜色更为亮丽,着色更好。
实施例5(水果套袋):
A组:发光膜的重量份数组份为:聚乙烯71.5份、CaAl2O4:Eu0.15,Dy0.2 6份、SrAl12O19:Eu0.1,Dy0.2 2份、Y2O2S:Eu0.05,Ti0.2,Mg0.15 15份、Y2O2S:Sm0.05 4份、N-(乙氧基羰基苯基)-N’-甲基-N’-苯基甲脒0.5份、聚氧乙烯单月桂酸酯1份,上述材料混合均匀吹塑成膜后,制得的发光膜的厚度为0.06mm,透光率为95%;
B组:不加发光材料,其余同A组,膜厚度为0.06mm,透光率为95%。
随机分别选取两组梨树(每组10株)进行对比实验,由该发光膜制作的水果套袋都可以可重复使用5次,都无结露滴状况,但A组对梨生长的促进作用更为显著。在成熟期,A组与B组相比,A组平均可以提前15天进行采摘上市,产量提高30%,单果质量提高20%,果糖、葡萄糖和蔗糖含量平均提高15%,梨表面更为亮丽,果点细小而不明显。
实施例6(水果套袋):
A组:发光膜的重量份数组份为:聚乙烯68份、CaAl2O4:Eu0.15,Dy0.2 6份、SrAl12O19:Eu0.1,Dy0.2 3份、MgSiO3:Mn0.05,Eu0.1,Dy0.2 12份、Y2O2S:Sm0.05 6份、N,N’-双-(3-(3,5-二叔丁基-4-羟基苯基)丙酰基)已二胺3份、聚氧乙烯甘油单油酸酯2份,上述材料混合均匀吹塑成膜后,制得的发光膜的厚度为0.16mm,透光率为87%;
B组:不加发光材料,其余同A组,膜厚度为0.16mm,透光率为87%。
随机分别选取两组葡萄树(每组10株)进行果实套袋的对比实验,由该发光膜制作的水果套袋都可以可重复使用10次,都无结露滴状况,但A组对葡萄生长的促进作用更为显著。在成熟期,A组与B组相比,A组平均可以提前8天进行采摘上市,产量提高16%,单果质量提高12%,果糖、葡萄糖和蔗糖含量平均提高18%,葡萄表面更为光滑,颜色更为亮丽。
Claims (4)
1.一种发光膜,其包覆在植物体或果实的外侧,其特征在于,该发光膜由以下重量份数组份组成:聚乙烯40-80份、发光材料10-30份、抗老化剂0.5-5份、表面活性剂1-6份;
所述发光材料包括如下重量份数的组份:蓝色发光材料2-10份、紫色发光材料1-5份、红色发光材料5-20份、橙红色发光材料1-6份;
所述发光材料白天吸收各种可见光及紫外线,在傍晚或黑暗处可以持续发出由蓝色、紫色、红色和橙红色组成的混合光;
所述抗老化剂为N,N’-双-(3-(3,5-二叔丁基-4-羟基苯基)丙酰基)已二胺、β-(3,5-二叔丁基-4-羟基苯基)丙酸正十八碳醇酯、三(2,4-二叔丁基苯基)亚磷酸酯或N-(乙氧基羰基苯基)-N’-甲基-N’-苯基甲脒;
所述表面活性剂为山梨糖醇酐单月桂酸酯、山梨糖醇酐单棕榈酸酯、聚氧乙烯单月桂酸酯、聚氧乙烯甘油单硬脂酸酯或聚氧乙烯甘油单油酸酯;
其中,所述蓝色发光材料是CaAl2O4:Eu0.15,Dy0.2,所述紫色发光材料是SrAl12O19:Eu0.1,Dy0.2,所述红色发光材料是Y2O2S:Eu0.05,Ti0.2,Mg0.15或MgSiO3:Mn0.05,Eu0.1,Dy0.2中的一种,所述橙红色发光材料是Y2O2S:Sm0.05。
2.如权利要求1所述的发光膜,其特征在于,所述发光材料加入的重量份数组份的组成为CaAl2O4:Eu0.15,Dy0.2 5-8份、SrAl12O19:Eu0.1,Dy0.2 1-3份、Y2O2S:Eu0.05,Ti0.2,Mg0.15 10-15份、Y2O2S:Sm0.05 2-5份。
3.如权利要求2所述的发光膜,其特征在于,所述发光材料加入的重量份数组份的组成为CaAl2O4:Eu0.15,Dy0.2 6份、SrAl12O19:Eu0.1,Dy0.2 2份、Y2O2S:Eu0.05,Ti0.2,Mg0.15 15份、Y2O2S:Sm0.05 4份。
4.如权利要求1所述的发光膜,其特征在于,制得的发光膜厚度为0.02-0.2mm。
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