CN106540654A - 一种以硅藻泥为主的空气净化材料及其制备方法 - Google Patents
一种以硅藻泥为主的空气净化材料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种以硅藻泥为主的空气净化材料,其原料包括载体原料和活性物质原料,以重量份计,该载体原料的组分为:硅藻土A G1份,粘接剂A Z1份,分散剂F份;该活性物质原料的组分为:硅藻土B G2份,纳米二氧化钛N份,电气石粉D份,粘接剂B Z2份,水S份;G1∶G2=(5~20)∶1;G1∶Z1=(5~8)∶1;G1∶F=(4~9)∶1;G2∶N=(80~120)∶1;G2∶D=(8~15)∶1;G2∶Z2=(5~9)∶1;G2∶S=(0.5~2)∶1。本发明的优点是:功能较多,能够较好的净化空气。
Description
技术领域
本发明涉及空气治理技术领域,尤其是涉及一种以硅藻泥为主的空气净化材料。本发明还涉及该以硅藻泥为主的空气净化材料的制备方法。
背景技术
随着生活水平的提高,人们对居住环境的要求越来越高。据调查,新装修房屋空气中存在着甲醛和苯类等有机污染物。甲醛对人体健康有严重的影响,吸入低浓度的甲醛会使眼和呼吸系统受到刺激,吸入高浓度的甲醛有可能致人死亡;苯是一种人体致癌剂,能引起白血病;甲苯会危害神经系统跟心血管系统,即使吸入低浓度的甲苯也能毒害中枢神经系统,引起弦晕,可导致视力迟钝,具有麻醉作用;乙苯主要是刺激人的眼睛和呼吸系统;氯苯能引起上呼吸道疾病与眼病;二甲苯(邻/间/对)对中枢和植物神经系统起麻醉和刺激作用。因此,空气中有机污染物的净化成为公众关注和技术开发的热点。
硅藻土(硅藻泥)是一种新型环保的装饰材料,其孔隙率较高,具有调节室内空气湿度的功能,同时也可以吸附室内有机污染物,具备一定的空气净化能力。授权公告号为CN103146264B的中国发明专利公开了一种多功能硅藻泥的制备方法,其以醋酸乙烯酯——乙烯共聚乳液(VAE)与硅溶胶按质量比1∶1混合复配物为成膜物,以硅藻土为调湿填料,以高分子吸水性树脂为调湿剂,以相变储能微胶囊粉体为蓄能调温填料,以负离子抗菌添加剂为抗菌防霉材料,对有机物仅有吸附功能,但净化效果差。授权公告号为CN102633475B的中国发明专利公开了一种无胶硅藻泥的制备方法,其由硅藻土、膨润土、高岭土、活性白土、石英砂、海泡石、碳酸钙、麦饭石粉、纳米二氧化钛粉末、纤维、凹凸棒土、羟丙基甲基纤维素、颜料组成,可消除室内污染、调节室内湿度、消除异味,隔离噪音和防火阻燃,但组分复杂,制作过程繁杂。因而,硅藻土在净化室内空气方面,仅具备吸附能力,功能单一,且吸附能力弱,吸附易饱和,作为空气净化材料尚显不足,制约了其应用。
发明内容
本发明的目的是提供一种以硅藻泥为主的空气净化材料,它具有功能较多,能够较好的净化空气的特点。本发明还公开了该以硅藻泥为主的空气净化材料的制备方法。
本发明所采用的技术方案是:
一种以硅藻泥为主的空气净化材料,其原料包括载体原料和活性物质原料,以重量份计,
该载体原料的组分为:
硅藻土A G1份,粘接剂A Z1份,分散剂F份;
该活性物质原料的组分为:
硅藻土B G2份,纳米二氧化钛N份,电气石粉D份,粘接剂B Z2份,水S份;
同时:
G1∶G2=(5~20)∶1;
G1∶Z1=(5~8)∶1;
G1∶F=(4~9)∶1;
G2∶N=(80~120)∶1;
G2∶D=(8~15)∶1;
G2∶Z2=(5~9)∶1;
G2∶S=(0.5~2)∶1;
以及:
硅藻土A和硅藻土B由同一种硅藻土分开而得到;
粘接剂A和粘接剂B由同一种粘接剂分开而得到。
所述以硅藻泥为主的空气净化材料为多孔块状结构。
以硅藻泥为主的空气净化材料的制备方法,包括以下步骤:
(1)取料:
分别取载体原料组分和活性物质原料的组分,其中,硅藻土进行精细化处理;
(2)烧结载体:
将硅藻土A、粘接剂A、分散剂混合并搅拌均匀后,煅烧成多孔状硅藻土块,煅烧温度为600~1000℃,煅烧时间为30min~240min;
(3)制备活性物质:
将硅藻土B、纳米二氧化钛、电气石粉、粘结剂B及水混合并搅拌成均匀糊状,形成活性物质;
(4)制备成品:
将多孔状硅藻土块浸泡在活性物质中,反复采用浸渍提拉法进行负载,然后烘干即可。
本发明和现有技术相比所具有的优点是:功能较多,能够较好的净化空气。本发明的以硅藻泥为主的空气净化材料充分发挥了硅藻土的作用,使硅藻土的分布较为均匀,从而具有较好的吸附功能,尤其是能够高效吸附空气中的甲醛等有机污染物。该以硅藻泥为主的空气净化材料还具有催化的功能,在光的作用下,可以有效降解室内空气中的有机污染物。该以硅藻泥为主的空气净化材料亦具有调节湿度的作用,可以较好地调节空气湿度,提高居住舒适度。另外,该以硅藻泥为主的空气净化材料具有释放负氧离子的功能,可以起到空气清新的作用,是一种多功能的新型空气净化材料。
附图说明
下面结合附图和实施例对本发明进一步说明:
图1是本发明的效果例中甲醛去除率随时间变化的坐标图。
具体实施方式
实施例1
以硅藻泥为主的空气净化材料,其制备包括以下步骤:
(1)取料:
分别取原料用于制备载体和活性物质。用于制备载体的原料包括硅藻土A、粘接剂A、分散剂,用于制备活性物质的原料包括硅藻土B、纳米二氧化钛、电气石粉、粘结剂B及水。该硅藻土A和硅藻土B为相同的物质。该粘接剂A和粘接剂B为相同的物质。
具体的:
硅藻土A取5kg,硅藻土A和粘接剂A的重量比为5∶1,硅藻土A和分散剂的重量比为4∶1。
硅藻土B取1kg,硅藻土B和纳米二氧化钛的重量比为80∶1,硅藻土B和电气石粉的重量比为8∶1,硅藻土B和粘接剂B的重量比为5∶1,硅藻土B和水的重量比为1∶2。
之后,对硅藻土A和硅藻土B均进行精细化处理。精细化处理可以采取多种常见的方式。本实施例中采用的方法是:加入一定比例的强酸,去除硅藻土中的有机质,过滤得到精细硅藻土。当然,精细化处理可以在将硅藻土分为硅藻土A和硅藻土B之前先进行。
(2)烧结载体:
将硅藻土A、粘接剂A、分散剂混合并搅拌均匀后,煅烧成多孔状硅藻土块形成载体,煅烧温度为600℃,煅烧时间为30min。
(3)制备活性物质:
将硅藻土B、纳米二氧化钛、电气石粉、粘结剂B及水混合并搅拌成均匀糊状,形成活性物质。
(4)制备成品:
将多孔状硅藻土块浸泡在活性物质中,反复采用浸渍提拉法进行负载,然后烘干即可制备为成品1。
实施例2
和实施例1的第一个区别在于:
硅藻土A取10kg,硅藻土A和粘接剂A的重量比为6∶1,硅藻土A和分散剂的重量比为7∶1。
硅藻土B取1kg,硅藻土B和纳米二氧化钛的重量比为100∶1,硅藻土B和电气石粉的重量比为10∶1,硅藻土B和粘接剂B的重量比为7∶1,硅藻土B和水的重量比为1∶1。
和实施例1的第二个区别在于:
烧结载体步骤中,煅烧温度为800℃,煅烧时间为120min。
最终,得到成品2。
实施例3
和实施例1的第一个区别在于:
硅藻土A取20kg,硅藻土A和粘接剂A的重量比为8∶1,硅藻土A和分散剂的重量比为9∶1。
硅藻土B取1kg,硅藻土B和纳米二氧化钛的重量比为120∶1,硅藻土B和电气石粉的重量比为15∶1,硅藻土B和粘接剂B的重量比为9∶1,硅藻土B和水的重量比为2∶1。
和实施例1的第二个区别在于:
烧结载体步骤中,煅烧温度为100℃,煅烧时间为240min。
最终,得到成品3。
效果例1
将成品1平铺在3m3的环境仓,铺设面积为1.5m2,封闭环境仓,向环境仓中注入一定量的甲醛,静置一段时间待其在环境仓中分散均匀,监测甲醛初始浓度,记为C0,之后每小时监测一次甲醛浓度,记为Ct。实验所得甲醛去除率随时间变化如图1所示。
由图1可以看出,成品1对甲醛具有较好的净化能力。即,前一个小时甲醛去除率成直线上升,一个小时内去除率超过95%,之后去除率趋于平稳,后三个小时甲醛去除率趋近99%,净化后甲醛浓度达到室内空气污染物排放标准要求。另外,还对针对苯及苯系物的去除效果进行实验,发现成品1对苯及苯系物同样具有较好的去除率,四小时净化后达到室内空气污染物排放标准的要求。
采用相同于对成品1进行测试的方式,对成品2和成品3均进行测试,测试效果和成品1所得数据的差距误差不超过5%。说明成品2和成品3同样具有较好的净化能力,这里不再赘述。
以上所述仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (3)
1.一种以硅藻泥为主的空气净化材料,其原料包括载体原料和活性物质原料,以重量份计,
该载体原料的组分为:
硅藻土A G1份,粘接剂A Z1份,分散剂F份;
该活性物质原料的组分为:
硅藻土B G2份,纳米二氧化钛N份,电气石粉D份,粘接剂B Z2份,水S份;
同时:
G1∶G2=(5~20)∶1;
G1∶Z1=(5~8)∶1;
G1∶F=(4~9)∶1;
G2∶N=(80~120)∶1;
G2∶D=(8~15)∶1;
G2∶Z2=(5~9)∶1;
G2∶S=(0.5~2)∶1;
以及:
硅藻土A和硅藻土B由同一种硅藻土分开而得到;
粘接剂A和粘接剂B由同一种粘接剂分开而得到。
2.根据权利要求1所述的以硅藻泥为主的空气净化材料,其特征在于:所述以硅藻泥为主的空气净化材料为多孔块状结构。
3.根据权利要求1或2所述的以硅藻泥为主的空气净化材料的制备方法,包括以下步骤:
(1)取料:
分别取载体原料组分和活性物质原料的组分,其中,硅藻土进行精细化处理;
(2)烧结载体:
将硅藻土A、粘接剂A、分散剂混合并搅拌均匀后,煅烧成多孔状硅藻土块,煅烧温度为600~1000℃,煅烧时间为30min~240min;
(3)制备活性物质:
将硅藻土B、纳米二氧化钛、电气石粉、粘结剂B及水混合并搅拌成均匀糊状,形成活性物质;
(4)制备成品:
将多孔状硅藻土块浸泡在活性物质中,反复采用浸渍提拉法进行负载,然后烘干即可。
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