CN110342577A - 一种同时防紫外线和近红外线的钨酸铯复合材料的制备方法 - Google Patents
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Abstract
本发明提供一种同时防紫外线和近红外线的钨酸铯复合材料的制备方法,包括以下步骤:步骤(1).按一定比例分别称取碳酸铯、氧化钨,湿法球磨;步骤(2).把混合物浆料取出,烘干;步骤(3).将物料在还原气氛下450‑500度热处理2‑5小时;步骤(4).按比例称取二氧化钛与氧化锌;步骤(5).将步骤(3)得到的物料与步骤(4)中的原料混合,干法球磨,第二次在还原气氛下800‑1000度处理1‑4小时。本发明一次性合成的复合材料具有多重功能,在强日晒中既可以一定程度阻止近红外线的高温加热,又能防紫外照射,并且同时具有一定的光催化环保功能。生产工艺操作更简单,相对安全环保、成本低廉。
Description
技术领域
本发明涉及新型材料技术领域,具体为一种同时防紫外线和近红外线的钨酸铯复合材料的制备方法。
背景技术
在近几年,人们的环保意识以及防辐射意识不断提高。臭氧层不断遭到破坏,紫外线指数上升。对于长期暴露在户外强光下的环境,紫外线对人体皮肤和建筑、车辆等物体表面都有一定的破坏力。而光照中近红外线产生高热量,特别在炎热季节也会给生产和生活造成困扰。因此多种功能的——兼具防紫外线和近红外线的复合材料需求日益紧迫。
钨青铜结构的钨酸铯粉体因其优异的低电阻、低温超导、光致变色以及光电性能等引起关注。钨酸铯(Cs0.32WO3)制备的玻璃表面透明薄膜具有优异的可见光透过和近红外光遮蔽特性,在电子器件、玻璃隔热、近红外遮蔽等方面具有潜在的应用前景,在汽车、建筑等遮阳隔热领域用作玻璃透明隔热涂料,还被用于红外阻隔纤维应用在纺织品的保暖,以及作为电子元器件用于电子封装材料、医药诊疗、激光打印、激光焊接等多种领域,市场广阔。
钨酸盐与铯源在还原气氛中处理后,不仅可以生成防近红外线的钨青铜结构的钨酸铯并且当与常用的防紫外线的二氧化钛在还原气氛中再次处理后,能够将二氧化钛中,四价钛部分还原为三价钛,三价钛增多可以提高二氧化钛的活性,加强防紫外线功能并且能够具有一定的光催化效果。
本发明生产工艺相对安全环保、成本低廉、生产效率高,一次性得到多功能复合材料。
发明内容
本发明所解决的技术问题在于提供一种同时防紫外线和近红外线的钨酸铯复合材料的制备方法,以解决上述背景技术中提出的问题。
本发明所解决的技术问题采用以下技术方案来实现:一种同时防紫外线和近红外线的钨酸铯复合材料的制备方法,包括以下步骤:
步骤(1).按一定比例分别称取碳酸铯、氧化钨,湿法球磨;
步骤(2).把混合物浆料取出,烘干;
步骤(3).将物料在H2和N2的混合气体中,在还原气氛下450-500度热处理2-5小时,混合气体的摩尔比为H2占3%,N2占97%;
步骤(4).按比例称取二氧化钛与氧化锌;
步骤(5).将步骤(3)得到的物料与步骤(4)中的原料混合,干法球磨,第二次烧结,烧结条件为:还原气氛下,温度为800-1000度,保温时间1-4小时,混合气体的摩尔比为H2占1%,N2占99%;
步骤(6).将步骤(5)得到的物料球磨粉碎后得到复合材料粉体。
所述步骤(1)(4)中,使得终产物复合材料总量中钨酸铯的含量占比为50%-70%wt,二氧化钛占比为20%-30%wt,氧化锌含量在10%-20%wt。
所述步骤(3)中优选的,还原气氛中热处理温度450-500度,2-5小时。
所述步骤(5)中优选的,还原气氛下热处理温度800-1000度,1-4小时。与现有技术相比,本发明的有益效果是:本发明简化了复杂的制备工艺,一次性合成的复合材料具有多重功能,在强日晒中既可以防止近红外线的高温加热,又能防紫外照射,并且同时具有一定的光催化环保功能。生产工艺操作更简单,相对安全环保、成本低廉。
具体实施方式
下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例1
按摩尔比分别称取氧化铯和氧化钨,使钨酸铯的总量在终产物中占比为70%wt,放入球磨罐中,加去离子水球磨6小时;将混合物浆料取出,放到烘箱里烘干水分,将物料取放在管式炉中箱式炉中,通入H2和N2(H2占3%,N2占97%)的混合气体,500度烧结5小时;将烧结冷却后的物料加入百分之20%wt二氧化钛与10%wt氧化锌,混合物放入球磨罐中,干磨2小时;将物料取出放入管式炉中,通入H2和N2(H2占1%,N2占99%)的混合气体,温度800度,保温2小时;将得到的物料球磨粉碎为最终产物复合材料粉体。
实施例2
按摩尔比分别称取氧化铯和氧化钨,使钨酸铯的总量在终产物中占比为65%wt,放入球磨罐中,加去离子水球磨6小时;将混合物浆料取出,放到烘箱里烘干水分,将物料取放在管式炉中箱式炉中,通入H2和N2(H2占3%,N2占97%)的混合气体,450度烧结3小时;将烧结冷却后的物料加入百分之22%wt二氧化钛与13%wt氧化锌,混合物放入球磨罐中,干磨2小时;将物料取出放入管式炉中,通入H2和N2(H2占1%,N2占99%)的混合气体,温度900度,保温1小时;将得到的物料球磨粉碎为最终产物复合材料粉体。
以上显示和描述了本发明的基本原理和主要特征以及本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明的要求保护范围由所附的权利要求书及其等效物界定。
Claims (4)
1.一种同时防紫外线和近红外线的钨酸铯复合材料的制备方法,其特征在于:包括以下步骤:
步骤(1).按一定比例分别称取碳酸铯、氧化钨,湿法球磨;
步骤(2).把混合物浆料取出,烘干;
步骤(3).将物料在还原气氛下450-500度热处理2-5小时,混合气体的摩尔比为H2占3%,N2占97%;
步骤(4).按比例称取二氧化钛与氧化锌;
步骤(5).将步骤(3)得到的物料与步骤(4)中的原料混合,干法球磨,第二次烧结,烧结条件为:还原气氛下,温度为800-1000度,保温时间1-4小时,混合气体的摩尔比为H2占1%,N2占99%;
步骤(6).将步骤(5)得到的物料球磨粉碎后得到复合材料粉体。
2.根据权利要求1所述的一种同时防紫外线和近红外线的钨酸铯复合材料的制备方法,其特征在于:所述步骤(1)(4)中,使得终产物复合材料总量中钨酸铯的含量占比为50%-70%wt,二氧化钛占比为20%-30%wt,氧化锌含量在10%-20%wt。
3.根据权利要求1所述的一种同时防紫外线和近红外线的钨酸铯复合材料的制备方法,其特征在于:所述步骤(3)中还原气氛中热处理温度450-500度,2-5小时。
4.根据权利要求1所述的一种同时防紫外线和近红外线的钨酸铯复合材料的制备方法,其特征在于:所述步骤(5)中再次混合后的材料在还原气氛下(H2占1%,N2占99%),800-1000度处理1-4小时。
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