CN106238025A - 玻璃微珠负载改性Nano‑TiO2光催化物及其在除醛玻镁板中的应用和除醛玻镁板 - Google Patents
玻璃微珠负载改性Nano‑TiO2光催化物及其在除醛玻镁板中的应用和除醛玻镁板 Download PDFInfo
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- CN106238025A CN106238025A CN201610630090.1A CN201610630090A CN106238025A CN 106238025 A CN106238025 A CN 106238025A CN 201610630090 A CN201610630090 A CN 201610630090A CN 106238025 A CN106238025 A CN 106238025A
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- Prior art keywords
- glass
- tio
- modified nano
- glass microballoon
- loaded modified
- Prior art date
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 33
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Classifications
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Abstract
本发明公开了一种玻璃微珠负载改性Nano‑TiO2光催化物及其在除醛玻镁板中的应用和除醛玻镁板。所述玻璃微珠负载改性Nano‑TiO2光催化物采用适当比例的纳米二氧化钛水溶液、表面活性剂、分散剂、玻璃微珠经分散脱水干燥得到,将所述光催化物应用于制备除醛玻镁板,所得玻镁板具有持久净化甲醛作用,具有保温隔热性佳,握螺钉力好,不吸潮返卤,不翘曲变形等优点。
Description
技术领域
本发明涉及装饰材料技术领域,更具体地,涉及一种玻璃微珠负载改性Nano-TiO2光催化物及其在除醛玻镁板中的应用和除醛玻镁板。
背景技术
随着经济发展和生活水平的提高,人们越来越崇尚办公和居室环境的舒适化、高档化和智能化,由此带动了装饰装修热潮和室内设施现代化的兴起。但是,新建筑、装潢材料的推广和更多家用化学剂的使用,造成室内空气严重污染,甚至比室外空气污染严重得多。随着住宅楼房的不断增高、电视等室内娱乐设备的普及,现代人在室内工作、学习、生活的时间随之增多,85%以上的时间在室内度过,而老弱病残和儿童在室内的时间更长,可达90%以上,所以室内空气质量的好坏直接关系到人们的身体健康。
在室内环境中主要的污染因子有:甲醛、TVOC(总的挥发性有机物)、苯系物等。甲醛是一种无色、有强烈刺激性气味的有毒气体,它有凝固蛋白质的作用。目前,甲醛是制造合成树脂、油漆、塑料以及人造纤维的原料,是人造板工业中制造脲醛树脂胶、三聚氰胺树脂胶、聚缩醛树脂、戊四醇醛树脂和酚醛树脂胶的重要原料,市场上各种刨花板、中密度纤维板、胶合板中均使用以甲醛为主要成分的脲醛树脂作为粘合剂。另外,新式家具、墙面、地面的装修辅助设备中都要使用粘合剂,而凡是有用到粘合剂的地方总会有一定量甲醛气体的释放。这一释放的过程可能长达数年。日本横滨国立大学的研究表明,人造板材中甲醛的释放期限一般是3~15年。并且随着室温的上升,甲醛挥发速度会加快。
如何消除这些污染物,目前尚无好的防治方法。开窗通风只能暂时降低污染物的浓度,很多时候不能长时间开窗,而且污染源又在不断地挥发出污染物,所以室内污染物比较难根治。
一直以来,轻质板材因其施工方便、性能优异、能有效减少楼层的承载能力而被广泛应用于室内隔墙吊顶装修领域。木质板中纤板含有对人体有害的物质甲醛;石膏板强度低,耐水性差;硅酸钙重量重,容易断裂,不易施工。玻镁板性能稳定,性价比高,是当今市场的主流趋势。但是目前市场玻镁板大部分都是素板,少数PVC贴面玻镁装饰板,而具持久性除醛功能的玻镁板还未有相关研究和技术报道。
发明内容
本发明要解决的技术问题是针对现有可应用于装饰材料领域的同时具有光催化、持久净化甲醛和隔热、改善材料重量和结构等作用的材料不足,提供一种玻璃微珠负载改性Nano-TiO2光催化物。
本发明同时要解决的技术问题是提供所述玻璃微珠负载改性Nano-TiO2光催化物的制备方法。
本发明要解决的另一技术问题是提供所述玻璃微珠负载改性Nano-TiO2光催化物在制备除醛玻镁板方面的应用。
本发明要解决的另一技术问题是提供一种应用了所述玻璃微珠负载改性Nano-TiO2光催化物的除醛玻镁板,该产品具有持久净化甲醛、隔热效果明显等特点。
本发明还一要解决的技术问题是提供除醛玻镁板的制备方法。
本发明的一个目的是提供一种玻璃微珠负载改性Nano-TiO2的光催化物。
本发明的另一个目的是提供所述光催化物的制备方法。
本发明的目的通过以下技术方案予以实现:
提供一种玻璃微珠负载改性Nano-TiO2的光催化物,是采用以下重量份数的各组分经超声分散后脱水干燥得到:
优选地,所述玻璃微珠负载改性Nano-TiO2的光催化物是采用以下重量份数的各组分经超声分散后脱水干燥得到:
其中,所述纳米二氧化钛水溶液为纳米二氧化钛和水(去离子水)按1.0~2.0:100的固液重量比分散得到。
进一步地,所述二氧化钛水溶液为纳米二氧化钛和水(去离子水)按1.5:100的重量比分散得到。
所述表面活性剂为十二烷基苯磺酸钠、十二烷基硫酸钠、十六烷基三甲基季铵盐或聚丙烯酰胺;优选为十二烷基硫酸钠。
所述分散剂为烷基苯磺酸钠、三乙醇胺、钛酸酯偶联剂或聚乙二醇。优选为三乙醇胺。
优选地,所述玻璃微珠的粒径为0.04~0.125mm,堆积密度为310~440kg/m3。可选地,所述玻璃微珠是将工业或民用回收得到的纯玻璃制品粉粹成400目以下的玻璃粉,再与发泡剂和粘结剂混合均匀,然后在800~820℃的高温条件下熔融、膨胀、冷却并筛分制得。
本发明同时提供了所述玻璃微珠负载改性Nano-TiO2的光催化物的制备方法,包括以下步骤:
S01.按照比例将去离子水加入纳米二氧化钛中,同时加入表面活性剂和改性剂,混合后经高速剪切处理,加入玻璃微珠,搅拌均匀后继续超声分散;
S02.将步骤S01处理后的混合物放置一定时间,然后经脱水干燥,通过圆孔筛形成玻璃微珠负载改性Nano-TiO2的光催化物。
优选地,步骤S01所述高速剪切的条件是800~1000r/min;所述高速剪切的时间为10min~20min;优选15min。
优选地,步骤S01所述超声分散的时间为10min~20min;优选15min。
优选地,步骤S02所述放置的时间为24小时。
优选地,步骤S02所述脱水干燥是将混合物置于50℃烘箱中进行脱水干燥,所述脱水干燥的时间为4~6h。
优选地,步骤S02所述圆孔筛的筛孔的孔径为0.1mm。
本发明提供所述玻璃微珠负载改性Nano-TiO2的光催化物的应用,具体是应用于制备除醛玻镁板方面。
所述除醛玻镁板是在底层玻璃纤维布上铺基料,在基料上铺第二层玻璃纤维布和面层无纺布,再铺装面浆,一次性通过成型设备压成片状、挤出、切割、养护后即得。
所述面浆的制备方法为:将氯化镁溶液与轻烧氧化镁混合,搅拌均匀后继续加入改性剂、防水剂和玻璃微珠负载改性Nano-TiO2光催化物,搅拌形成糊状物即得。
更具体地,本发明所述玻璃微珠负载改性Nano-TiO2的光催化物应用于制备除醛玻镁板的面浆。
所述面浆是采用以下重量份数的各组分混匀得到:
轻烧氧化镁 50~60重量份;
氯化镁溶液 30~45重量份;
本发明所述玻璃微珠负载改性Nano-TiO2光催化物 2~10重量份;
改性剂 0.5~1.5重量份;
防水剂 0.2~0.5重量份。
优选地,所述面浆是采用以下重量份数的各组分混匀得到:
轻烧氧化镁 55~60重量份;
氯化镁溶液 30~40重量份;
本发明所述玻璃微珠负载改性Nano-TiO2光催化物5~8重量份;
改性剂 0.8~1.0重量份;
防水剂 0.3~0.4重量份;
优选地,所述改性剂为磷酸或含磷酸的下脚料。
优选地,所述防水剂为有机硅憎水剂。
所述的氯化镁溶液是在水中加入六水氯化镁搅拌后静置得到。优选静置的时间为24小时。优选地,所述氯化镁溶液为密度1.22~1.28kg/m3的氯化镁溶液。
本发明提供一种优选的除醛玻镁板的制备方法,包括以下步骤:
S1.制备基料:在水中加入六水氯化镁,搅拌充分溶解形成溶液,静置24小时后倒入搅拌机,与轻烧氧化镁混合,搅拌均匀后继续加入改性剂、丙烯酸乳胶和竹纤维,搅拌5~10min,形成糊状物;
制备面浆:在纯水中加入六水氯化镁,搅拌充分溶解形成溶液,静置24小时后倒入搅拌机,与轻烧氧化镁混合,搅拌均匀后继续加入改性剂、防水剂和玻璃微珠负载改性Nano-TiO2光催化物,搅拌5~10min,形成糊状物;
S2.板材成型:首先通过模板输送铺底层玻璃纤维布,接着将搅拌好的基料铺装,然后铺第二层玻璃纤维布和面层无纺布,再铺装面浆,一次性通过成型设备经双道辊压成片状,在皮带的推动下不断挤出,切割成板后经第一次恒温养护后脱模锯边,再进入第二次常温养护,经过14~21天后即得。
基料和面浆的厚度根据用途生产确定。优选地,基料成型厚度范围为3~20mm,面浆成型厚度为0.5~3mm。
优选地,步骤S1所述基料的原料组成为:
更优选地,所述基料的原料组成为:
优选地,所述轻烧氧化镁为活性含量大于60%的轻烧氧化镁。
优选地,所述氯化镁溶液为密度1.22~1.28kg/m3的氯化镁溶液。
优选地,所述竹纤维长度5~8mm,过20目筛。
优选地,所述改性剂为磷酸或含磷酸的下脚料。
优选地,步骤S2所述养护是两次养护,第一次养护是自切割成板后进入养护室经过24~48小时养护,养护温度控制范围是本体温度在40~60℃为佳;第二次养护是常温养护14~21天。
本发明具有以下有益效果:
本发明提供了一种新的适用于制备除醛玻镁板的光催化材料,通过组分种类和比例的合理设计,获得的光催化材料比表面积大,表面能较高,颗粒间范德华力和库仑力的共同作用,粒子靠一起,使总表面积和表面自由能降低,有效发挥纳米颗粒极易团聚,易于形成二次颗粒,形成软团聚和硬团聚的优势,并通过蜂孔状的玻璃微珠的中空微孔结构,充分发挥其表面粗糙、内部为多孔的蜂窝网状结构的优势,使二氧化钛更好地负载于玻璃微珠空隙,同时合理量的玻璃微珠作为后续制备除醛玻镁板面浆的主要填充材料,在板材中紧密排布,玻璃微珠的空心腔互相连接形成真空层,可以有效热传导,此外玻璃微珠能够替代部分填料,可降低板材中其他功能组分和基料用量,大幅降低板材的比重与导热系数,达到良好的隔热作用,具有质量轻、强度高、吸水率低、隔热良好的多重特点。
应用本发明所述光催化材料,添加其它组份配制成的玻镁装饰板,具有净化效率高,净化持久,隔热效果好,无二次污染等优势。
附图说明
图1玻璃微珠负载改性Nano-TiO2光催化物SEM图。
具体实施方式
下面结合附图和具体实施例进一步详细说明本发明。除非特别说明,本发明采用的原料和设备为本技术领域常规原料和设备。这些实施例只是对本发明玻璃微珠负载改性纳米二氧化钛的玻镁板进行详细的说明,并非用以限制本发明的保护范围。
实施例1玻璃微珠负载改性Nano-TiO2光催化物的制备
S01.在100L的去离子水中加入1.5kg纳米二氧化钛,同时加入0.08kg表面活性剂十二烷基硫酸钠(SDS)和0.1kg分散剂三乙醇胺,800~1000r/min高速剪切15min后,加入60kg玻璃微珠搅拌均匀后继续超声分散15min;得混合物。
S02.将步骤S01所得混合物放置24小时后,将混合物置于50℃烘箱中脱水干燥,通过0.1mm圆孔筛形成玻璃微珠负载改性Nano-TiO2的光催化物。
实施例2玻璃微珠负载改性Nano-TiO2光催化物的制备
S01.在100L的去离子水中加入1.0kg纳米二氧化钛,同时加入0.07kg表面活性剂十二烷基硫酸钠(SDS)和0.08kg分散剂三乙醇胺,800~1000r/min高速剪切15min后,加入60kg玻璃微珠搅拌均匀后继续超声分散15min;得混合物。
S02.将步骤S01所得混合物放置24小时后,将混合物置于50℃烘箱中脱水干燥,通过0.1mm圆孔筛形成玻璃微珠负载改性Nano-TiO2的光催化物。
实施例3玻璃微珠负载改性Nano-TiO2光催化物的制备
S01.在100L的去离子水中加入2.0kg纳米二氧化钛,同时加入0.08kgSDS表面活性剂和0.1kg三乙醇胺分散剂,800~1000r/min高速剪切15min后,加入80kg玻璃微珠搅拌均匀后继续超声分散15min;得混合物。
S02.将步骤S01所得混合物放置24小时后,将混合物置于50℃烘箱中脱水干燥,通过0.1mm圆孔筛形成玻璃微珠负载改性Nano-TiO2的光催化物。
实施例4玻璃微珠负载改性Nano-TiO2光催化物的制备
S01.在150L的去离子水中加入2kg纳米二氧化钛,同时加入0.1kg SDS表面活性剂和0.1kg三乙醇胺分散剂,800~1000r/min高速剪切15min后,加入100kg玻璃微珠搅拌均匀后继续超声分散15min;得混合物。
S02.将步骤S01所得混合物放置24小时后,将混合物置于50℃烘箱中脱水干燥,通过0.1mm圆孔筛形成玻璃微珠负载改性Nano-TiO2的光催化物。
实施例5玻璃微珠负载改性Nano-TiO2光催化物的制备
S01.在100L的去离子水中加入2.0kg纳米二氧化钛,同时加入0.08kg表面活性剂聚丙烯酰胺和0.1kg分散剂烷基苯磺酸钠,800~1000r/min高速剪切15min后,加入80kg玻璃微珠搅拌均匀后继续超声分散15min;得混合物。
S02.将步骤S01所得混合物放置24小时后,将混合物置于50℃烘箱中脱水干燥,通过0.1mm圆孔筛形成玻璃微珠负载改性Nano-TiO2的光催化物。
实施例6玻璃微珠负载改性Nano-TiO2光催化物的制备
S01.在100L的去离子水中加入2.0kg纳米二氧化钛,同时加入0.08kg表面活性剂十二烷基苯磺酸钠和0.1kg分散剂聚乙二醇,800~1000r/min高速剪切15min后,加入80kg玻璃微珠搅拌均匀后继续超声分散15min;得混合物。
S02.将步骤S01所得混合物放置24小时后,将混合物置于50℃烘箱中脱水干燥,通过0.1mm圆孔筛形成玻璃微珠负载改性Nano-TiO2的光催化物。
实施例7玻璃微珠负载改性Nano-TiO2光催化物的制备
S01.在100L的去离子水中加入2.0kg纳米二氧化钛,同时加入0.08kg表面活性剂十六烷基三甲基季铵盐和0.1kg分散剂钛酸酯偶联剂,800~1000r/min高速剪切15min后,加入80kg玻璃微珠搅拌均匀后继续超声分散15min;得混合物。
S02.将步骤S01所得混合物放置24小时后,将混合物置于50℃烘箱中脱水干燥,通过0.1mm圆孔筛形成玻璃微珠负载改性Nano-TiO2的光催化物。
将实施例1至7任一例所得玻璃微珠负载改性Nano-TiO2光催化物经电子扫描显像,结果见图1所示。由图1可见,Nano-TiO2颗粒均匀吸附于玻璃微珠上。
实施例8除醛玻镁板的制备
S1.基料的制备:在纯水中加入六水氯化镁,搅拌充分溶解形成氯化镁溶液,密度为1.22kg/m3,静置24小时后倒入搅拌机40kg,与45kg轻烧氧化镁混合,搅拌均匀后继续加入0.8kg改性剂、3kg丙烯酸乳胶和10kg竹纤维,搅拌5~10min,形成糊状物;
面浆的制备:倒入氯化镁溶液35kg于搅拌机中,与50kg轻烧氧化镁混合,搅拌均匀后继续加入0.8kg改性剂、0.3kg防水剂和5kg实施例1至7任一例所得玻璃微珠负载改性Nano-TiO2光催化物,搅拌5~10min,形成糊状物。
S2.板材成型:基料成型厚度6mm,面浆成型厚度0.5mm。将基料糊状物倒入成型机的模板中,成型机内设置有上下两层低碱玻璃纤维布和上层无纺布,基料处于上下两层低碱玻璃纤维布之间,面浆铺与基料之上,辊压成型,在皮带的推动下不断挤出,自动化切割成板后进入养护室经过24~48小时的恒温养护后脱模锯边,再进入第二次常温养护,经过14~21天后即可出库。
将上述养护龄期20d以上的除醛玻镁板根据JG/T414-2013《建筑用菱镁装饰板》标准对产品各项性能进行测试,结果如下:
表1本实施例所得除醛玻镁板的基本性能
实施例9除醛玻镁板的制备
S1.基料的制备:在纯水中加入六水氯化镁,搅拌充分溶解形成氯化镁溶液,密度为1.28kg/m3,静置24小时后倒入搅拌机45kg,与45kg轻烧氧化镁混合,搅拌均匀后继续加入0.9kg改性剂、2kg丙烯酸乳胶和12kg竹纤维,搅拌5~10min,形成糊状物。
面浆的制备:倒入氯化镁溶液38kg于搅拌机中,与55kg轻烧氧化镁混合,搅拌均匀后继续加入0.7kg改性剂、0.4kg防水剂和6kg实施例1至7任一例所得玻璃微珠负载改性Nano-TiO2光催化物,搅拌5~10min,形成糊状物。
S2.板材成型:基料成型厚度9mm,面浆成型厚度0.8mm。将基料糊状物倒入成型机的模板中,成型机内设置有上下两层低碱玻璃纤维布和上层无纺布,基料处于上下两层低碱玻璃纤维布之间,面浆铺与基料之上,辊压成型,在皮带的推动下不断挤出,自动化切割成板后进入养护室经过24~48小时的恒温养护后脱模锯边,再进入第二次常温养护,经过14~21天后即可出库。
将上述养护龄期20d以上的除醛玻镁板根据JG/T414-2013《建筑用菱镁装饰板》标准对产品各项性能进行测试,结果如下:
表2本实施例所得除醛玻镁板的基本性能
实施例10除醛玻镁板的制备
S1.基料的制备:在纯水中加入六水氯化镁,搅拌充分溶解形成氯化镁溶液,密度为1.24kg/m3,静置24小时后倒入搅拌机45kg,与50kg轻烧氧化镁混合,搅拌均匀后继续加入1.0kg改性剂、3kg丙烯酸乳胶和10kg竹纤维,搅拌5~10min,形成糊状物。
面浆的制备:倒入氯化镁溶液42kg于搅拌机中,与60kg轻烧氧化镁混合,搅拌均匀后继续加入0.9kg改性剂、0.4kg防水剂和8kg实施例1至7任一例所得玻璃微珠负载改性Nano-TiO2光催化物,搅拌5~10min,形成糊状物。
S2.板材成型:基料成型厚度9mm,面浆成型厚度0.6mm。将基料糊状物倒入成型机的模板中,成型机内设置有上下两层低碱玻璃纤维布和上层无纺布,基料处于上下两层低碱玻璃纤维布之间,面浆铺与基料之上,辊压成型,在皮带的推动下不断挤出,自动化切割成板后进入养护室经过24~48小时的恒温养护后脱模锯边,再进入第二次常温养护,经过14~21天后即可出库。
将上述养护龄期20d以上的除醛玻镁板根据JG/T414-2013《建筑用菱镁装饰板》标准对产品各项性能进行测试,结果如下:
表3本实施例所得除醛玻镁板的基本性能
实施例11除醛玻镁板的制备
S1.基料的制备:在纯水中加入六水氯化镁,搅拌充分溶解形成氯化镁溶液,密度为1.23kg/m3,静置24小时后倒入搅拌机40kg,与40kg轻烧氧化镁混合,搅拌均匀后继续加入1.2kg改性剂、4kg丙烯酸乳胶和15kg竹纤维,搅拌5~10min,形成糊状物。
面浆的制备:倒入氯化镁溶液40kg于搅拌机中,与50kg轻烧氧化镁混合,搅拌均匀后继续加入1.2kg改性剂、0.5kg防水剂和10kg实施例1至7任一例所得玻璃微珠负载改性Nano-TiO2光催化物,搅拌5~10min,形成糊状物。
S2.板材成型:基料成型厚度12mm,面浆成型厚度0.7mm。将基料糊状物倒入成型机的模板中,成型机内设置有上下两层低碱玻璃纤维布和上层无纺布,基料处于上下两层低碱玻璃纤维布之间,面浆铺与基料之上,辊压成型,在皮带的推动下不断挤出,自动化切割成板后进入养护室经过24~48小时的恒温养护后脱模锯边,再进入第二次常温养护,经过14~21天后即可出库。
将上述养护龄期20d以上的除醛玻镁板根据JG/T414-2013《建筑用菱镁装饰板》标准对产品各项性能进行测试,结果如下:
表4本实施例所得除醛玻镁板的基本性能
实施例12净化效果比较实验
采用实施例8、9、10、11的配方,减去面浆中玻璃微珠负载Nano-TiO2光催化物,分别得到对应的对比例8、9、10、11的配方。根据JC/T1074-2008《室内空气净化功能涂覆材料净化性能》标准对实施例8、9、10、11的除醛玻镁板和对比例8、9、10、11的玻镁板进行甲醛净化效率、甲苯净化效率性能测试,结果如下:
表5净化性能和净化持久性的对比测试
Claims (10)
1.一种玻璃微珠负载改性Nano-TiO2的光催化物,其特征在于,是采用以下重量份数的各组分经分散后脱水干燥得到:
2.根据权利要求1所述玻璃微珠负载改性Nano-TiO2的光催化物,其特征在于,是采用以下重量份数的各组分经分散后脱水干燥得到:
3.根据权利要求1或2所述玻璃微珠负载改性Nano-TiO2的光催化物,其特征在于,所述纳米二氧化钛水溶液为纳米二氧化钛和水按1.0~2.0:100的固液重量比分散得到;
所述表面活性剂为十二烷基苯磺酸钠、十二烷基硫酸钠、十六烷基三甲基季铵盐或聚丙烯酰胺;
所述分散剂为烷基苯磺酸钠、三乙醇胺、钛酸酯偶联剂或聚乙二醇。
4.根据权利要求1或2所述玻璃微珠负载改性Nano-TiO2的光催化物,其特征在于,所述玻璃微珠的粒径为0.04~0.125mm,堆积密度为310~440kg/m3。
5.权利要求1至4任一项所述玻璃微珠负载改性Nano-TiO2的光催化物的制备方法,其特征在于,包括以下步骤:
S01.按照比例将水加入纳米二氧化钛中,同时加入表面活性剂和分散剂,混合后经高速剪切处理,加入玻璃微珠,搅拌均匀后超声分散;
S02.将步骤S01处理后的混合物放置一定时间,然后经脱水干燥,通过圆孔筛形成玻璃微珠负载改性Nano-TiO2的光催化物。
6.权利要求1至4任一项所述玻璃微珠负载改性Nano-TiO2的光催化物的应用,其特征在于,应用于制备除醛玻镁板;优选应用于制备除醛玻镁板的面浆。
7.根据权利要求6所述的应用,其特征在于,所述除醛玻镁板是在玻璃纤维布上铺基料,在基料上铺第二层玻璃纤维布和面层无纺布,再铺装面浆,经成型设备压成片状、挤出、切割、养护后即得;
所述面浆的制备方法为:将氯化镁溶液与轻烧氧化镁混合,搅拌均匀后继续加入改性剂、防水剂和玻璃微珠负载改性Nano-TiO2光催化物,搅拌形成糊状物即得。
8.根据权利要求6或7所述的应用,其特征在于,所述面浆是采用以下重量份数的各组分混匀得到:
轻烧氧化镁 50~60重量份;
氯化镁溶液 30~45重量份;
权利要求1至4任一项所述玻璃微珠负载改性Nano-TiO2光催化物 2~10重量份;
改性剂 0.5~1.5重量份;
防水剂 0.2~0.5重量份;
优选地,所述面浆是采用以下重量份数的各组分混匀得到:
轻烧氧化镁 55~60重量份;
氯化镁溶液 30~40重量份;
权利要求1至4任一项所述玻璃微珠负载改性Nano-TiO2光催化物 5~8重量份;
改性剂 0.8~1.0重量份;
防水剂 0.3~0.4重量份。
9.根据权利要求7所述的应用,其特征在于,所述改性剂为磷酸或含磷酸的下脚料;所述防水剂为有机硅憎水剂;所述的氯化镁溶液是在水中加入六水氯化镁搅拌后静置得到。
10.一种除醛玻镁板的制备方法,其特征在于,包括以下步骤:
S1.制备基料:在水中加入六水氯化镁,搅拌充分溶解形成溶液,静置后与轻烧氧化镁混合,搅拌均匀后继续加入改性剂、丙烯酸乳胶和竹纤维,搅拌形成糊状物;
制备面浆:在纯水中加入六水氯化镁,搅拌充分溶解形成溶液,静置后与轻烧氧化镁混合,搅拌均匀后继续加入改性剂、防水剂和权利要求1至4任一项所述的玻璃微珠负载改性Nano-TiO2光催化物,搅拌形成糊状物;
S2.板材成型:首先通过模板输送铺底层玻璃纤维布,接着将搅拌好的基料铺装,然后铺第二层玻璃纤维布和面层无纺布,再铺装面浆,一次性通过成型设备经双道辊压成片状,挤出,切割成板后经第一次恒温养护后脱模锯边,再进入第二次常温养护即得;
优选地,步骤S1所述基料的原料组成为:
更优选地,所述基料的原料组成为:
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