CN106187294A - 一种轻质隔热的片状蜂窝陶瓷及其制备方法 - Google Patents

一种轻质隔热的片状蜂窝陶瓷及其制备方法 Download PDF

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CN106187294A
CN106187294A CN201610508061.8A CN201610508061A CN106187294A CN 106187294 A CN106187294 A CN 106187294A CN 201610508061 A CN201610508061 A CN 201610508061A CN 106187294 A CN106187294 A CN 106187294A
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闫秦峻
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BENGBU NANZI INSTRUMENT Co Ltd
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Abstract

本发明公开了一种轻质隔热的片状蜂窝陶瓷及其制备方法，由以下重量份原料制成：氧化铝空心球5‑10，堇青石40‑50，黏土1‑3，玻璃微珠3‑6，ZrO2粉5‑10，CrO2粉5‑10，滑石粉10‑15，碳酸镁3‑5，环氧大豆油3‑8，碳酸钠4‑8，硬脂酸1‑3，1 mol/L HNO3溶液适量，纳米氧化铝溶胶50‑60，1 mol/L La(NO3)3 1‑3，1 mol/L Sr(NO3)2 1‑2，1 mol/L Co(NO3)2 0.5‑1、1 mol/L柠檬酸2‑6，去离子水100‑200；本发明的蜂窝陶瓷载体具有抗压强度高、耐高温、化学稳定性好、抗腐蚀能力强等优点。

Description

一种轻质隔热的片状蜂窝陶瓷及其制备方法
技术领域
本发明涉及陶瓷材料，尤其涉及一种轻质隔热的片状蜂窝陶瓷及其制备方法。
技术背景
机动车污染已成为我国空气污染的重要来源，是造成灰霾和光化学烟雾污染的重要原因。汽车尾气主要为氮氧化物(NOx)、碳氢化合物(HC)、一氧化碳(C0)、颗粒物等，已成为主要的大气污染物，因此，解决空气污染问题的重中之重即是解决汽车尾气污染问题。
汽车尾气净化器主要由壳体、载体和催化剂3部分组成，其中催化剂的选择非常重要。三效催化剂是指能同时去除NOx、HC、CO这三种主要污染物的催化剂，大量试验研究表明，稀土钙钛矿催化剂La-Sr-Co-O为三效催化剂，并且对汽车尾气的催化效果较好。祝杰在其硕士学位论文《堇青石蜂窝陶瓷负载La-Sr-Co-O对汽车尾气催化性能的研究》中采用堇青石蜂窝陶瓷作为载体，La-Sr-Co-O钙钛矿型复合氧化物作为催化剂活性成分，制备了整体式汽车尾气催化剂，但是其制备的陶瓷载体耐热性能还不够高，并且整体式催化剂一旦损坏需要整体更换，浪费资源的同时还增加了使用成本。
发明内容
针对以上不足，本发明的目的是提供一种耐高温、使用寿命长、又能保证资源合理利用的片状蜂窝陶瓷及其制备方法。
本发明所要解决的技术问题采用以下的技术方案来实现 ：
1. 一种轻质隔热的片状蜂窝陶瓷，其特征在于，由以下重量份的原料制成：
氧化铝空心球5-10，堇青石 40-50，黏土 1-3，玻璃微珠3-6，ZrO2粉5-10，CrO2粉5-10，滑石粉10-15，碳酸镁3-5，环氧大豆油3-8，碳酸钠 4-8，硬脂酸1-3，1 mol/L HNO3溶液适量，纳米氧化铝溶胶50-60，1 mol/L La(NO3)3 1-3，1 mol/L Sr(NO3)2 1-2，1 mol/L Co(NO3)2 0.5-1、1 mol/L柠檬酸2-6，去离子水100-200；
所述纳米氧化铝溶胶的固含量为20%-25%。
2. 所述的一种负载La-Sr-Co-O的片状蜂窝陶瓷及其制备方法，其特征在于，包括以下步骤：
a. 片状蜂窝陶瓷的制备:
取氧化铝空心球、堇青石、黏土、玻璃微珠、ZrO2 粉、CrO2粉、滑石粉、碳酸镁和碳酸钠进行球磨、混料、粉碎至200 -500 目后，加入环氧大豆油、硬脂酸、50-60份去离子水混合均匀，陈腐 20-25 h得到泥料 ；将泥料放入真空炼泥机中进行炼泥后，再放入挤压成型机中成型后切割为3-5cm的板状试样 ；100-150℃下烘干试样后放入煅烧炉中，1200-1500℃下保温1-4h，冷却出炉。
b. 片状蜂窝陶瓷的预处理：
水洗步骤a得到的堇青石蜂窝陶瓷板状试样后，用HNO3溶液浸泡20-30 h，之后用清水超声10-30 min后干燥；
c. 纳米氧化铝溶胶和La-Sr-Co-O催化剂的涂覆：
将步骤b所得板状试样浸入纳米氧化铝溶胶和La-Sr-Co-O前驱体溶液的混合液中，20-60min后取出， 用洗耳球吹除板状试样孔道残留的混合液，50-100℃下干燥10-15h，500-1000℃下焙烧3-8h，重复3-5次。
3. 所述的La-Sr-Co-O前驱体溶液由所述的1 mol/L La(NO3)3，1 mol/L Sr(NO3)2，1 mol/L Co(NO3)2、1 mol/L柠檬酸溶液混合而成。
本发明的有益效果是：本发明利用耐高温、耐磨损和耐腐蚀的惰性无机材料ZrO2粉和CrO2粉来强化蜂窝陶瓷载体的综合性能，使蜂窝陶瓷载体具有抗压强度高、耐高温、化学稳定性好、抗腐蚀能力强等优点；进一步地，利用水溶性碳酸钠来提高陶瓷载体的孔隙率；将纳米氧化铝溶胶和La-Sr-Co-O前驱体溶液混合后对陶瓷载体进行浸泡，增加了La-Sr-Co-O催化剂与载体的结合力，延长其使用寿命；将蜂窝陶瓷载体制成片状型，方便了安装和更换，同时节约成本，促进了资源的充分利用，符合当下绿色环保的趋势，具有更广阔的应用前景和市场价值；配合添加的氧化铝空心球内部空心，表面凹凸不平，增大了接触比表面积，使得陶瓷载体具有质轻隔热的特点。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施例，进一步阐述本发明。
实施例
一种轻质隔热的片状蜂窝陶瓷，其特征在于，由以下重量份的原料制成：
氧化铝空心球5，堇青石 40，黏土3，玻璃微珠3，ZrO2粉5，CrO2粉5，滑石粉15，碳酸镁5，环氧大豆油8，碳酸钠8，硬脂酸3，1 mol/L HNO3溶液适量，纳米氧化铝溶胶60，1 mol/L La(NO3)3 3，1 mol/L Sr(NO3)2 2，1 mol/L Co(NO3)2 1、1 mol/L柠檬酸6，去离子水200；
所述纳米氧化铝溶胶的固含量为20%-25%。
所述的一种负载La-Sr-Co-O的片状蜂窝陶瓷及其制备方法，其特征在于，包括以下步骤：
a. 片状蜂窝陶瓷的制备:
取氧化铝空心球、堇青石、黏土、玻璃微珠、ZrO2 粉、CrO2粉、滑石粉、碳酸镁和碳酸钠进行球磨、混料、粉碎至200 -500 目后，加入环氧大豆油、硬脂酸、50-60份去离子水混合均匀，陈腐 20-25 h得到泥料 ；将泥料放入真空炼泥机中进行炼泥后，再放入挤压成型机中成型后切割为3-5cm的板状试样 ；100-150℃下烘干试样后放入煅烧炉中，1200-1500℃下保温1-4h，冷却出炉。
b. 片状蜂窝陶瓷的预处理：
水洗步骤a得到的堇青石蜂窝陶瓷板状试样后，用HNO3溶液浸泡20-30 h，之后用清水超声10-30 min后干燥；
c. 纳米氧化铝溶胶和La-Sr-Co-O催化剂的涂覆：
将步骤b所得板状试样浸入纳米氧化铝溶胶和La-Sr-Co-O前驱体溶液的混合液中，20-60min后取出， 用洗耳球吹除板状试样孔道残留的混合液，50-100℃下干燥10-15h，500-1000℃下焙烧3-8h，重复3-5次。
所述的La-Sr-Co-O前驱体溶液由所述的1 mol/L La(NO3)3，1 mol/L Sr(NO3)2，1mol/L Co(NO3)2、1 mol/L柠檬酸溶液混合而成。
经检测：
对CO催化效率 ≥90%。

Claims (3)

1.一种轻质隔热的片状蜂窝陶瓷，其特征在于，由以下重量份的原料制成：
氧化铝空心球5-10，堇青石 40-50，黏土 1-3，玻璃微珠3-6，ZrO2粉5-10，CrO2粉5-10，滑石粉10-15，碳酸镁3-5，环氧大豆油3-8，碳酸钠 4-8，硬脂酸1-3，1 mol/L HNO3溶液适量，纳米氧化铝溶胶50-60，1 mol/L La(NO3)3 1-3，1 mol/L Sr(NO3)2 1-2，1 mol/L Co(NO3)2 0.5-1、1 mol/L柠檬酸2-6，去离子水100-200；
所述纳米氧化铝溶胶的固含量为20%-25%。
2.根据权利要求1所述的一种负载La-Sr-Co-O的片状蜂窝陶瓷及其制备方法，其特征在于，包括以下步骤：
a. 片状蜂窝陶瓷的制备:
取氧化铝空心球、堇青石、黏土、玻璃微珠、ZrO2 粉、CrO2粉、滑石粉、碳酸镁和碳酸钠进行球磨、混料、粉碎至200 -500 目后，加入环氧大豆油、硬脂酸、50-60份去离子水混合均匀，陈腐 20-25 h得到泥料 ；将泥料放入真空炼泥机中进行炼泥后，再放入挤压成型机中成型后切割为3-5cm的板状试样 ；100-150℃下烘干试样后放入煅烧炉中，1200-1500℃下保温1-4h，冷却出炉；
b. 片状蜂窝陶瓷的预处理：
水洗步骤a得到的堇青石蜂窝陶瓷板状试样后，用HNO3溶液浸泡20-30 h，之后用清水超声10-30 min后干燥；
c. 纳米氧化铝溶胶和La-Sr-Co-O催化剂的涂覆：
将步骤b所得板状试样浸入纳米氧化铝溶胶和La-Sr-Co-O前驱体溶液的混合液中，20-60min后取出， 用洗耳球吹除板状试样孔道残留的混合液，50-100℃下干燥10-15h，500-1000℃下焙烧3-8h，重复3-5次。
3. 根据权利要求2所述的La-Sr-Co-O前驱体溶液由所述的1 mol/L La(NO3)3，1 mol/LSr(NO3)2，1 mol/L Co(NO3)2、1 mol/L柠檬酸溶液混合而成。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111841520A (zh) * 2020-07-16 2020-10-30 萍乡拓步环保科技有限公司 一种氧化铝基体催化剂载体及制备方法
CN112388875A (zh) * 2021-01-19 2021-02-23 永一橡胶有限公司 一种带电子标签的轮胎硫化胶囊及其制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103508748A (zh) * 2012-06-18 2014-01-15 苏州忠辉蜂窝陶瓷有限公司 一种堇青石蜂窝陶瓷及其制备方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103508748A (zh) * 2012-06-18 2014-01-15 苏州忠辉蜂窝陶瓷有限公司 一种堇青石蜂窝陶瓷及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
祝杰: "堇青石蜂窝陶瓷负载La-Sr-Co-O对汽车尾气催化性能的研究", 《知网中国优秀硕士学位论文全文数据库》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111841520A (zh) * 2020-07-16 2020-10-30 萍乡拓步环保科技有限公司 一种氧化铝基体催化剂载体及制备方法
CN112388875A (zh) * 2021-01-19 2021-02-23 永一橡胶有限公司 一种带电子标签的轮胎硫化胶囊及其制备方法
CN112388875B (zh) * 2021-01-19 2021-03-26 永一橡胶有限公司 一种带电子标签的轮胎硫化胶囊及其制备方法

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