CN105506995B - 一种氧负离子膜材料及其制备方法 - Google Patents
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Abstract
本发明公开了一种氧负离子膜材料及其制备方法,主要由载体材料、负离子粉和粘合树脂构成。其中载体材料采用无纺布、浸渍用牛皮纸或装饰纸,负离子粉由细度相近的电气石粉和生物质碳粉机械混合制成,粘合树脂为适于浸渍的三聚氰胺甲醛树脂或三聚氰胺尿素甲醛树脂。本发明具有以下优点:(1)采用无纺布、浸渍用牛皮纸或装饰纸作为载体材料,选材环保、成本低、吸附性能强;(2)采用聚乙二醇溶液或聚丙烯酰胺溶液作为介质将负离子粉溶于粘合树脂中,使得负离子粉与粘合树脂均匀混合;(3)将载体材料浸泡于含有负离子粉的粘合树脂中,且采用二次浸润、烘干的方法获得含负离子粉的氧负离子膜材料,提高了膜材料中负离子的含量。
Description
技术领域
本发明涉及一种膜材料,尤其涉及一种氧负离子膜材料及其制备方法。
背景技术
空气中负离子浓度是衡量空气质量指标的重要参数。医学研究表明,空气中带负电的微粒能够增加人体血液中的含氧量,有助于血氧输送、吸收和利用,具有促进人体新陈代谢、提高人体免疫能力、增强人体肌能、调节肌体功能平衡的作用。负离子矿物晶体辐射的远红外线与人体能够很好协调,可被人体全部吸收。一般而言,人每天需要大约130亿个负离子,而我们的居室、办公室、娱乐场所等室内环境,只能提供约1~20亿个负离子,这与人体对负离子的需求水平相去甚远。然而对于大多数人而言,绝大多数时间都是停留在室内,因而长期的负离子供不应求将会影响人体的精神状态和身心健康。
现有技术中,在室内装潢材料、食品保鲜材料中负离子材料已得到较为广泛的应用,如中国专利CN2011104214006负离子水性乳液涂料及其制备方法,其通过在水性乳液涂料中添加负离子材料的方法制备得到能够释放出负离子、氧离子的涂料,该涂料能够吸收各种苯、甲醛、铀等有害物质,达到有效净化室内环境的目的,保证人在生活空间中的身心健康。此外,中国专利CN2014102605117一种释放负离子多功能保鲜材料及其制备方法,它通过将负离子添加剂与树脂在混料机中混合均匀,然后在双螺杆挤出机中造粒制成释放负离子的多功能保鲜材料,该负离子保鲜膜具有抗菌抑菌、保鲜除味、延长食品保质期的功能。以上两项现有技术均是利用负离子能够净化空气、吸附细菌等作用,二者为了得到含有负离子的材料采用的方法均是将负离子材料或负离子添加剂直接加入载体材料(涂料、树脂)中,然后经过混合、造粒等过程获得含有负离子的材料。
发明内容
本发明的目的是:本发明提供了一种氧负离子膜材料及其制备方法,通过聚乙二醇溶液或聚丙烯酰胺溶液作为介质将负离子粉与粘合树脂混合均匀,制备得到含有负离子粉的粘合树脂,并通过将载体材料二次浸润、烘干的方法获得含负离子粉的氧负离子膜材料。
为了实现上述发明目的,本发明采用以下技术方案:
一种氧负离子膜材料,主要由载体材料、负离子粉和粘合树脂构成。所述载体材料采用无纺布、浸渍用牛皮纸或装饰纸,其中牛皮纸或装饰纸定量要求60-120g/m2,无纺布定量要求40-80g/m2。所述负离子粉由细度相近的电气石粉和生物质碳粉按质量比(20-50)∶(80-50)机械混合制成,其中电气石粉细度为500-1250目,生物质碳粉细度为500-1250目。所述粘合树脂为适于浸渍的三聚氰胺甲醛树脂或三聚氰胺尿素甲醛树脂,其中树脂固含量至少为40%。
作为上述技术方案的一种优选方案,所述生物质碳粉为竹炭粉。
本发明进一步要解决的技术问题在于,提供一种氧负离子膜材料的制备方法,包括以下步骤:
(1)将负离子粉加至质量分数为10-50%的低分子量聚乙二醇溶液或质量分数为5-10%的聚丙烯酰胺溶液中,高速搅拌形成负离子粉分散糊,再将负离子粉分散糊添加到粘合树脂中搅拌均匀,制成负离子粉粘合树脂;其中负离子粉与聚乙二醇溶液或聚丙烯酰胺溶液以质量比1∶1混合,负离子粉分散糊在粘合树脂中的添加量为树脂质量的20-30%;
(2)一次浸润:将载体材料浸泡于不含负离子粉的粘合树脂中,当载体材料为牛皮纸或装饰纸时,粘合树脂的质量含量为50-80%,当载体材料为无纺布时,粘合树脂的质量含量为60-90%;
(3)将步骤(2)中获得的浸入粘合树脂的载体材料置于连续干燥机中,在70-120℃温度条件下干燥,使载体材料的挥发份含量降低到16-12%;
(4)二次浸润:经步骤(3)干燥后的载体材料浸泡于步骤(1)获得的含有负离子粉的粘合树脂中,当载体材料为牛皮纸或装饰纸时,粘合树脂的质量含量为80-110%,当载体材料为无纺布时,粘合树脂的质量含量为90-120%;
(5)将步骤(4)中获得的浸入含有负离子粉的粘合树脂的载体材料置于连续干燥机中,在70-120℃温度条件下干燥,使载体材料的挥发份含量降低到14-10%,最终制得含负离子粉的氧负离子膜材料。
作为上述氧负离子膜材料的制备方法的一种优选方式,步骤(3)中将步骤(2)获得的浸入粘合树脂的载体材料置于连续干燥机中,在110℃温度条件下干燥,使载体材料的挥发份含量降低到15-13%。
作为上述氧负离子膜材料的制备方法的一种优选方式,步骤(5)中将步骤(4)获得的浸入含有负离子粉的粘合树脂的载体材料置于连续干燥机中,在115℃温度条件下干燥,使载体材料的挥发份含量降低到13-11%,最终制得含负离子粉的氧负离子膜材料。
树脂添加负离子粉后渗透性下降,因此第一次浸渍的是渗透性好的未添加负离子粉的树脂,使树脂充分渗透到载体材料内部,从而保障负离子膜具有良好的粘结性能。第二次浸渍的是添加负离子粉的树脂,使负离子粉通过树脂的出粘性均匀的粘附在载体材料表面,充分发挥负离子粉的功能作用。聚乙二醇或聚丙烯酰胺均为高吸水性材料,其水溶液具有较好的流动性和粘滞性,因而可以使负离子粉均匀分散于其中而不会沉淀或分层。
本发明所述氧负离子膜材料能够释放出负离子、氧离子,能够增加人体血液中的含氧量,有助于血氧输送、吸收和利用,具有促进人体新陈代谢、提高人体免疫能力、增强人体肌能、调节肌体功能平衡的作用。此外,将本发明所述膜材料应用于室内装潢材料中,起到表面除菌、消除异味及有害气体,净化室内空气的作用。由于电气石粉和竹炭粉的压电性产生的远红外波段,能活化人体细胞,调理生理活动,因此具有良好的保健功能。
有益效果
本发明与现有技术相比,具有以下积极效果:
(1)采用无纺布、浸渍用牛皮纸或装饰纸作为载体材料,选材环保、成本低、吸附性能强;
(2)采用聚乙二醇溶液或聚丙烯酰胺溶液作为介质将负离子粉溶于粘合树脂中,使得负离子粉与粘合树脂能够均匀混合;
(3)将载体材料浸泡于含有负离子粉的粘合树脂中,且采用二次浸润、烘干的方法获得含负离子粉的氧负离子膜材料,提高了膜材料中负离子的含量。
(4)该氧负离子膜材料不仅对各种人造板基板具有良好的粘结性能,而且膜材料表面可产生500-3000个/(s.cm2)负离子,随着电气石粉的添加比例或细度的增大,负离子产生的数量随之增加。
具体实施方式
下面结合具体实施方式对本发明做进一步说明,其中实施例1、2是以无纺布作为载体材料的优选实施方式的示例;实施例3、4是以牛皮纸或装饰纸作为载体材料的优选实施方式的示例。
实施例1:
以40g/m2的无纺布作为载体材料,以细度均为500目的电气石粉和竹炭粉按质量比20∶50机械混合制得负离子粉,并选用树脂含量为40%的三聚氰胺甲醛树脂作为粘合树脂,按以下步骤制备氧负离子膜材料:
(1)将负离子粉加至质量分数为10%的低分子量聚乙二醇溶液,高速搅拌形成负离子粉分散糊,再将负离子粉分散糊添加到粘合树脂中搅拌均匀,制成负离子粉粘合树脂;其中负离子粉与聚乙二醇溶液以质量比1∶1混合,负离子粉分散糊在粘合树脂中的添加量为树脂质量的20%;
(2)一次浸润:将载体材料浸泡于不含负离子粉的粘合树脂中,将载体材料中粘合树脂的质量含量控制在60%;
(3)将步骤(2)中获得的浸入粘合树脂的载体材料置于连续干燥机中,在70℃温度条件下干燥,使载体材料的挥发份含量降低到16%;
(4)二次浸润:经步骤(3)干燥后的载体材料浸泡于步骤(1)中获得的含有负离子粉的粘合树脂中,将载体材料中粘合树脂的质量含量控制在90%;
(5)将步骤(4)中获得的浸入含有负离子粉的粘合树脂的载体材料置于连续干燥机中,在85℃温度条件下干燥,使载体材料的挥发份含量降低到14%,最终制得含负离子粉的氧负离子膜材料。
本实施例制得的膜材料经检测,释放负离子数量为500-800个/(s.cm2)。
实施例2:
以80g/m2的无纺布作为载体材料,以细度均为800目的电气石粉和竹炭粉按质量比30∶65机械混合制得负离子粉,并选用树脂含量为50%的三聚氰胺尿素甲醛树脂作为粘合树脂,按以下步骤制备氧负离子膜材料:
(1)将负离子粉加至质量分数为5%的聚丙烯酰胺溶液,高速搅拌形成负离子粉分散糊,再将负离子粉分散糊添加到粘合树脂中搅拌均匀,制成负离子粉粘合树脂;其中负离子粉与聚丙烯酰胺溶液以质量比1∶1混合,负离子粉分散糊在粘合树脂中的添加量为树脂质量的25%;
(2)一次浸润:将载体材料浸泡于不含负离子粉的粘合树脂中,将载体材料中粘合树脂的质量含量控制在90%;
(3)将步骤(2)中获得的浸入粘合树脂的载体材料置于连续干燥机中,在110℃温度条件下干燥,使载体材料的挥发份含量降低到13%;
(4)二次浸润:经步骤(3)干燥后的载体材料浸泡于步骤(1)中获得的含有负离子粉的粘合树脂中,将载体材料中粘合树脂的质量含量控制在120%;
(5)将步骤(4)中获得的浸入含有负离子粉的粘合树脂的载体材料置于连续干燥机中,在115℃温度条件下干燥,使载体材料的挥发份含量降低到12%,最终制得含负离子粉的氧负离子膜材料。
本实施例制得的膜材料经检测,释放负离子数量为1300-1700个/(s.cm2)。
实施例3:
以60g/m2的牛皮纸或装饰纸作为载体材料,以细度均为700目的电气石粉和竹炭粉按质量比40∶70机械混合制得负离子粉,并选用树脂含量为55%的三聚氰胺甲醛树脂作为粘合树脂,按以下步骤制备氧负离子膜材料:
(1)将负离子粉加至质量分数为10%的聚丙烯酰胺溶液中,高速搅拌形成负离子粉分散糊,再将负离子粉分散糊添加到粘合树脂中搅拌均匀,制成负离子粉粘合树脂;其中负离子粉与聚丙烯酰胺溶液以质量比1∶1混合,负离子粉分散糊在粘合树脂中的添加量为树脂质量的30%;
(2)一次浸润:将载体材料浸泡于不含负离子粉的粘合树脂中,将载体材料中粘合树脂的质量含量控制在50%;
(3)将步骤(2)中获得的浸入粘合树脂的载体材料置于连续干燥机中,在115℃温度条件下干燥,使载体材料的挥发份含量降低到14%;
(4)二次浸润:经步骤(3)干燥后的载体材料浸泡于步骤(1)中获得的含有负离子粉的粘合树脂中,将载体材料中粘合树脂的质量含量控制在80%;
(5)将步骤(4)中获得的浸入含有负离子粉的粘合树脂的载体材料置于连续干燥机中,在120℃温度条件下干燥,使载体材料的挥发份含量降低到14%,最终制得含负离子粉的氧负离子膜材料。
本实施例制得的膜材料经检测,释放负离子数量为2200-2600个/(s.cm2)。
实施例4:
以120g/m2的牛皮纸或装饰纸作为载体材料,以细度均为1250目的电气石粉和生物质碳粉按质量比50∶80机械混合制得负离子粉,并选用树脂含量为60%的三聚氰胺尿素甲醛树脂作为粘合树脂,按以下步骤制备氧负离子膜材料:
(1)将负离子粉加至质量分数为50%的低分子量聚乙二醇溶液中,高速搅拌形成负离子粉分散糊,再将负离子粉分散糊添加到粘合树脂中搅拌均匀,制成负离子粉粘合树脂;其中负离子粉与低分子量聚乙二醇溶液以质量比1∶1混合,负离子粉分散糊在粘合树脂中的添加量为树脂质量的30%;
(2)一次浸润:将载体材料浸泡于不含负离子粉的粘合树脂中,将载体材料中粘合树脂的质量含量控制在80%;
(3)将步骤(2)中获得的浸入粘合树脂的载体材料置于连续干燥机中,在115℃温度条件下干燥,使载体材料的挥发份含量降低到12%;
(4)二次浸润:经步骤(3)干燥后的载体材料浸泡于步骤(1)中获得的含有负离子粉的粘合树脂中,将载体材料中粘合树脂的质量含量控制在110%;
(5)将步骤(4)中获得的浸入含有负离子粉的粘合树脂的载体材料置于连续干燥机中,在120℃温度条件下干燥,使载体材料的挥发份含量降低到10%,最终制得含负离子粉的氧负离子膜材料。
本实施例制得的膜材料经检测,释放负离子数量为2600-3000个/(s.cm2)。
上面结合具体实施方式对本发明做了详细说明,但本发明并不限于此,任何本领域的技术人员在所具备的知识范围内,在不违背本发明宗旨的前提下,可以对其作出各种变形与修改。
Claims (3)
1.一种氧负离子膜材料的制备方法,其特征在于,包括以下步骤:
(1)将负离子粉加至质量分数为10-50%的低分子量聚乙二醇溶液或质量分数为5-10%的聚丙烯酰胺溶液中,高速搅拌形成负离子粉分散糊,再将负离子粉分散糊添加到粘合树脂中搅拌均匀,制成负离子粉粘合树脂;其中负离子粉与聚乙二醇溶液或聚丙烯酰胺溶液以质量比1∶1混合,负离子粉分散糊在粘合树脂中的添加量为树脂质量的20-30%;
(2)一次浸润:将载体材料浸泡于不含负离子粉的粘合树脂中,当载体材料为牛皮纸或装饰纸时,粘合树脂的质量含量为50-80%,当载体材料为无纺布时,粘合树脂的质量含量为60-90%;
(3)将步骤(2)获得的浸入粘合树脂的载体材料置于连续干燥机中,在70-120℃温度条件下干燥,使载体材料的挥发份含量降低到16-12%;
(4)二次浸润:经步骤(3)干燥后的载体材料浸泡于步骤(1)获得的含有负离子粉的粘合树脂中,当载体材料为牛皮纸或装饰纸时,粘合树脂的质量含量为80-110%,当载体材料为无纺布时,粘合树脂的质量含量为90-120%;
(5)将步骤(4)获得的浸入含有负离子粉的粘合树脂的载体材料置于连续干燥机中,在70-120℃温度条件下干燥,使载体材料的挥发份含量降低到14-10%,最终制得双面含负离子粉的氧负离子膜材料。
2.根据权利要求1所述的一种氧负离子膜材料的制备方法,其特征在于,步骤(3)中将步骤(2)获得的浸入粘合树脂的载体材料置于连续干燥机中,在110℃温度条件下干燥,使载体材料的挥发份含量降低到15-13%。
3.根据权利要求1所述的一种氧负离子膜材料的制备方法,其特征在于,步骤(5)中将步骤(4)获得的浸入含有负离子粉的粘合树脂的载体材料置于连续干燥机中,在115℃温度条件下干燥,使载体材料的挥发份含量降低到13-11%,最终制得双面含负离子粉的氧负离子膜材料。
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