CN107262058A - 一种含纳米二氧化钛的车内空气净化用材料及其制备工艺 - Google Patents
一种含纳米二氧化钛的车内空气净化用材料及其制备工艺 Download PDFInfo
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Abstract
本发明涉及一种含纳米二氧化钛的车内空气净化用材料及其制备工艺,其特征在于具体制备步骤如下:先将催化抗菌剂纳米二氧化钛与粘结剂聚四氟乙烯PTFE混合加入到活性炭主体材料中,混合后按质量比5:1加入超纯水,加水后搅拌均匀得到混合液,搅拌后的混合液浸渍蜂窝状活性炭和骨架无纺布,浸渍条件为室温下,之后将蜂窝状活性炭和骨架无纺布粘结在一起,经过辊压,压出表面水分即可,辊压后烘干成型,制成蜂窝活性炭过滤吸附材料。其在保证车辆与外界空气循环的情况下阻挡外界的污染空气中的粉尘和细微颗粒物进入车内,从而有效过滤PM2.5、甲苯、甲醛等污染物进入车内,同时增强抗菌防霉的作用。
Description
技术领域
本发明涉及一种含纳米二氧化钛的车内空气净化用材料及其制备工艺,属于车内空气净化装置技术领域。
背景技术
随着我国经济的不断发展,汽车已是人们日常生活不可或缺的交通工具。随着城市私人汽车拥有量的逐年增加,马路上的空气污染状况日益严重,而车内空间狭小,空气流通性差,不利于污染物的扩散,对车主的健康带来很大的危害。如何提高车内空气质量,成为广大车主们密切关注的话题。
活性炭又称活性炭黑,是黑色粉末状或块状、颗粒状、蜂窝状的无定形碳,也有排列规整的晶体碳。活性炭在结构上由于是不规则排列,在交叉连接之间有细孔,在活化时会产生碳组织缺陷,因此它是一种多孔碳,堆积密度低,比表面积大。普通活性炭的比表面积在500~1700m2/g间。具有很强的物理吸附性能,是用途极广的一种工业吸附剂,能有效地去除色度、臭味,可去除大多数有机污染物和某些无机物,包含某些有毒的重金属物质。
蜂窝状活性炭是一种新型环保活性炭废气净化产品,能有效降低异味和污染物,达到国家废气一级排放标准。本产品主要原料是采用,高级煤质活性炭粉、高碘值椰壳活性炭粉、超强脱色木质活性炭粉,目前国内市场大多数都是高级煤质活性炭粉制造成蜂窝形状的活性炭,所以被人们称为蜂窝状活性炭。
纳米二氧化钛原指昆虫体内经诱导而产生的一类具有抗菌活性的碱性多肽物质,其分子量在2000~7000左右,由许多类氨基酸残基组成。这类活性多肽多数具有强碱性、热稳定性以及广谱抗菌等特点,主要对革兰阳性菌起作用,已被广泛应用于医疗和食品保鲜等领域。研究结果发现,在紫外线的作用下使纳米二氧化钛激活并生成具有高催化活性的游离基,能产生很强的光氧化及还原能力,可催化、光解附着于物体表面的各种甲醛等有机物及部分无机物。能够起到净化空气的功能。可以说纳米二氧化钛是一种性能优良的催化抗菌剂。
目前市场在售的绝大多数车型所使用的车用空调滤清器对于PM0.3来说形同虚设,即使是一些高端品牌的车用空调滤清器经实际检测过滤效率也差强人意。由于活性炭过滤吸附材料不仅具有较好的过滤空气中PM颗粒的作用,而且还能起到除异味的作用,是效果比较好的空调滤芯材料,因此现在一般车内的空调滤芯都含有活性炭成分,但是能够替代活性炭成分的滤芯却几乎没有,这就制约空调滤芯行业的发展,并且,随着对污染的研究日益精细化,活性炭过滤吸附材料急需实现更佳的过滤效果来使得用户获得更为舒适车内环境、进而降低鼻、肺疾病,同时又能更好的保护车内空调系统。
中国专利:授权公告号为CN103418344A,公开日为2013 年12 月4 日的发明专利公开了一种纳米氧化锌蜂窝型净化活性炭及其制备方法,其原料的重量配比是:化学活性炭17~28份、煤质颗粒活性炭15~25份、椰壳活性炭50~60份、纯度99%的纳米氧化锌4~6份、甲基纤维素1~2份、滑石粉1~2份。方法步骤有球磨、原料混合、搅拌均匀,制成产品料。再经真空泥练、挤压成型、晾干和烧结制成。本发明能保证该活性炭具有良好的吸附污物的功能,又能使其能在普通光的作用下能分解吸附在该活性炭里的甲醛、氨、苯等有毒气体,即具备自净化功能,还具有定型坚固,经久耐用,方法简单可行,治污成本低,低碳节能和治理效果好的优点。
中国专利:授权公告号为CN103432991A,公开日为2013年12月11日的发明专利公开了一种纳米银蜂窝型净化活性炭及其制备方法,纳米银蜂窝型净化活性炭所使用的原料的重量配比是:化学活性炭32~38份、煤质颗粒活性炭25~30份、椰壳活性炭35~42份、纯度99%的纳米银4~6份、甲基纤维素1~2份、滑石粉1~2份。方法步骤有球磨、原料混合、搅拌均匀,制成产品料。再经真空泥练、挤压成型、晾干和烧结,制成。本发明能保证该活性炭具有良好的吸附污物的功能,还能对使人至病的微生物有良有的杀抑作用,适用于医院等环境中,还具有定型坚固,经久耐用,方法简单可行,治污成本低,低碳节能和治理效果好的优点。
发明内容
本发明的目的是提供一种含纳米二氧化钛的车内空气净化用材料及其制备工艺,其在保证车辆与外界空气循环的情况下阻挡外界的污染空气中的粉尘和细微颗粒物进入车内,从而有效过滤PM2.5、甲苯、甲醛等污染物进入车内,同时增强抗菌防霉的作用。
本发明的技术方案是这样实现的: 一种含纳米二氧化钛的车内空气净化用材料及其制备工艺,车内空气净化用材料由蜂窝状活性炭、骨架无纺布、催化抗菌剂、粘结剂和聚丙烯空气滤布组成,其特征在于制备方法,具体制备步骤如下:粘结剂为聚四氟乙烯PTFE,蜂窝状活性炭为竹炭,其炭层间掺杂生物催化抗菌剂,生物催化抗菌剂为纳米二氧化钛;
先将催化抗菌剂纳米二氧化钛与粘结剂聚四氟乙烯PTFE混合加入到活性炭主体材料中,催化抗菌剂占总质量的1~2%,粘结剂占总质量的1~10%,混合后按质量比5:1加入超纯水,即活性炭:催化剂:粘结剂:水=98~88:1~2:1~10:500,加水后搅拌均匀得到混合液,搅拌要求保证其混合液的动力粘度在150cP以上,搅拌后的混合液浸渍蜂窝状活性炭和骨架无纺布,浸渍条件为室温下,浸渍时长10min,之后将蜂窝状活性炭和骨架无纺布粘结在一起,厚度在1~2mm,经过辊压,压出表面水分即可, 辊压后烘干成型,烘干温度为80℃,烘干时间1h,制成蜂窝活性炭过滤吸附材料。
所述的蜂窝状活性炭可由竹炭替换为椰壳炭或麦秆炭。
本发明的积极效果其不仅改善了蜂窝状活性炭过滤吸附材料的透气性、吸附性能以及抗菌性能,同时可以使活性炭在骨架无纺布表面很好地固化形成良好的吸附层,且形状灵活,易于加工,具有成本优势,对环境友好。
具体实施方式
下面结合具体实施例对本发明做出进一步的描述:
实施例一
本发明提供的一种车内空气净化用蜂窝状活性炭过滤吸附材料,其原材料包括蜂窝状活性炭、骨架无纺布、催化抗菌剂、粘结剂和聚丙烯空气滤布,采用上述原材料制作车内空气净化用蜂窝状活性炭过滤吸附材料的方法包括如下步骤:1、将蜂窝状活性炭、纳米二氧化钛和PTFE以质量比96:1:3进行选材,之后将后两者混合后加入上述混合物质量5倍的超纯水后搅拌均匀,经过一小时后取出备用,测得其动力粘度150cP。2、将1制得的混合液用来浸渍蜂窝状活性炭、骨架无纺布,室温下10min,之后将蜂窝状活性炭和骨架无纺布辊压粘结成形,涂覆量100g/m2,经过烘干成型后,烘干温度为80℃,烘干时间为1h,制成蜂窝状活性炭过滤吸附材料。3将2制得的活性炭骨架无纺布与聚丙烯空气滤布经过热合工艺复合,即制得车内空气净化用蜂窝状活性炭过滤吸附材料。
通过对1、2和3制得的蜂窝状活性炭过滤吸附材料进行测试,结果如下:本产品相较于目前市面上的活性炭过滤布,对于净化PM0.3有更好的效果,经现有技术方法检测,在吹风速度0.5m/s测试条件下,市面上其他产品对于PM0.3的过滤效率一般在20%左右,本发明的车内空气净化用蜂窝状活性炭过滤吸附材料的过滤效率可以达到62%。本发明的车内空气净化用蜂窝状活性炭过滤吸附材料,活性炭质量百分比达到90%以上,仍能保持良好的透气度,透气度在1600mm/s左右;此外,一般的活性炭过滤布并不具有灭菌的作用,本发明的空气净化用蜂窝状活性炭过滤吸附材料有很好的抗菌效果,杀菌率达到99%尤其对大肠杆菌、金黄色葡萄球菌、白色念珠菌有特效,除臭率可达99%,防霉效果为0级,为防霉最高等级。
实施例二
本发明提供的一种车内空气净化用蜂窝状活性炭过滤吸附材料,其原材料包括蜂窝状活性炭、骨架无纺布、催化抗菌剂、粘结剂和聚丙烯空气滤布,采用上述原材料制作车内空气净化用蜂窝状活性炭过滤吸附材料的方法包括如下步骤:将蜂窝状活性炭、纳米二氧化钛和PTFE以质量比92:2:6进行选材,之后将后两者混合后加入上述混合物质量5倍的超纯水后搅拌均匀,经过一小时后取出备用,测得其动力粘度190cP。将制得的混合液用来浸渍蜂窝状活性炭、骨架无纺布,室温下10min,之后将蜂窝状活性炭和骨架无纺布辊压粘结成形,涂覆量120g/m2,经过烘干成型后,烘干温度为80℃,烘干时间为1h,制成蜂窝状活性炭过滤吸附材料。将制得的活性炭骨架无纺布与聚丙烯空气滤布经过热合工艺复合,即制得车内空气净化用蜂窝状活性炭过滤吸附材料。
通过上述制得的蜂窝状活性炭过滤吸附材料进行测试,结果如下在吹风速度0.5m/s测试条件下,上述车内空气净化用蜂窝状活性炭过滤吸附材料的过滤效率可以达到60%。上述车内空气净化用蜂窝状活性炭过滤吸附材料,透气度在1200mm/s左右;此外,杀菌率达到99%尤其对大肠杆菌、金黄色葡萄球菌、白色念珠菌有特效,除臭率可达99%(脱臭性能为普通活性炭的百倍),防霉效果为0级,为防霉最高等级。
实施例三
本发明提供的一种车内空气净化用蜂窝状活性炭过滤吸附材料,其原材料包括蜂窝状活性炭、骨架无纺布、催化抗菌剂、粘结剂和聚丙烯空气滤布,采用上述原材料制作车内空气净化用蜂窝状活性炭过滤吸附材料的方法包括如下步骤:将蜂窝状活性炭、纳米二氧化钛和PTFE以质量比94:2:4进行选材配料,之后将后两者加入上述混合物质量5倍的超纯水后搅拌均匀,经过一小时后取出备用,测得其动力粘度150cP。将制得的混合液用来浸渍蜂窝状活性炭、骨架无纺布,室温下10min,之后将蜂窝状活性炭和骨架无纺布辊压粘结成形,涂覆量140g/m2,经过烘干成型后,烘干温度为80℃,烘干时间为1h,制成蜂窝状活性炭过滤吸附材料。将上述制得的活性炭骨架无纺布与聚丙烯空气滤布经过热合工艺复合,即制得车内空气净化用蜂窝状活性炭过滤吸附材料。
通过对制得的蜂窝状活性炭过滤吸附材料进行测试,结果如下:在吹风速度0.5m/s测试条件下,上述车内空气净化用蜂窝状活性炭过滤吸附材料的过滤效率可以达到60%。上述车内空气净化用蜂窝状活性炭过滤吸附材料,透气度在1800mm/s左右;此外,杀菌率达到99%,尤其对大肠杆菌、金黄色葡萄球菌、白色念珠菌有特效,除臭率可达99%(脱臭性能为普通活性炭的百倍),防霉效果为0级,为防霉最高等级。
实施例四
本发明提供的一种车内空气净化用蜂窝状活性炭过滤吸附材料,其原材料包括蜂窝状活性炭、骨架无纺布、催化抗菌剂、粘结剂和聚丙烯空气滤布,采用上述原材料制作车内空气净化用蜂窝状活性炭过滤吸附材料的方法包括如下步骤:将蜂窝状活性炭、纳米二氧化钛和PTFE以质量比88:2:10进行选材配料,之后将后两者加入上述混合物质量5倍的超纯水后搅拌均匀,经过一小时后取出备用,测得其动力粘度350cP。将制得的混合液用来浸渍蜂窝状活性炭、骨架无纺布,室温下10min,之后将蜂窝状活性炭和骨架无纺布辊压粘结成形,涂覆量160g/m2,经过烘干成型后,烘干温度为80℃,烘干时间为1h,制成蜂窝状活性炭过滤吸附材料。将上述制得的活性炭骨架无纺布与聚丙烯空气滤布经过热合工艺复合,即制得车内空气净化用蜂窝状活性炭过滤吸附材料。
通过对制得的蜂窝状活性炭过滤吸附材料进行测试,结果如下:在吹风速度0.8m/s测试条件下,上述车内空气净化用蜂窝状活性炭过滤吸附材料的过滤效率可以达到60%,材料保持完整。上述车内空气净化用蜂窝状活性炭过滤吸附材料,透气度在1500mm/s左右;此外,杀菌率达到99%,尤其对大肠杆菌、金黄色葡萄球菌、白色念珠菌有特效,除臭率可达99%,脱臭性能为普通活性炭的百倍,防霉效果为0级,为防霉最高等级。
Claims (2)
1.一种含纳米二氧化钛的车内空气净化用材料及其制备工艺,车内空气净化用材料由蜂窝状活性炭、骨架无纺布、催化抗菌剂、粘结剂和聚丙烯空气滤布组成,其特征在于制备方法,具体制备步骤如下:粘结剂为聚四氟乙烯PTFE,蜂窝状活性炭为竹炭,其炭层间掺杂生物催化抗菌剂,生物催化抗菌剂为纳米二氧化钛;
先将催化抗菌剂纳米二氧化钛与粘结剂聚四氟乙烯PTFE混合加入到活性炭主体材料中,催化抗菌剂占总质量的1~2%,粘结剂占总质量的1~10%,混合后按质量比5:1加入超纯水,即活性炭:催化剂:粘结剂:水=98~88:1~2:1~10:500,加水后搅拌均匀得到混合液,搅拌要求保证其混合液的动力粘度在150cP以上,搅拌后的混合液浸渍蜂窝状活性炭和骨架无纺布,浸渍条件为室温下,浸渍时长10min,之后将蜂窝状活性炭和骨架无纺布粘结在一起,厚度在1~2mm,经过辊压,压出表面水分即可, 辊压后烘干成型,烘干温度为80℃,烘干时间1h,制成蜂窝活性炭过滤吸附材料。
2.根据权利要求1中所述的一种含纳米二氧化钛的车内空气净化用材料及其制备工艺,其特征在于所述的蜂窝状活性炭可由竹炭替换为椰壳炭或麦秆炭。
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