CN113603503A - 微孔陶瓷雾化芯及其制备方法 - Google Patents

微孔陶瓷雾化芯及其制备方法 Download PDF

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CN113603503A
CN113603503A CN202110827486.6A CN202110827486A CN113603503A CN 113603503 A CN113603503 A CN 113603503A CN 202110827486 A CN202110827486 A CN 202110827486A CN 113603503 A CN113603503 A CN 113603503A
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atomizing core
microporous ceramic
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CN113603503B (zh
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陈平
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Shenzhen Huachengda Precision Industry Co Ltd
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Abstract

本发明公开了一种微孔陶瓷雾化芯及其制备方法，微孔雾化芯包括原料及其质量份数如下：主体材料10‑50份、陶瓷粉体0‑40份、助烧剂10‑50份、造孔剂0‑20份、石蜡20‑50份以及表面活性剂0.1‑2.0份；所述主体材料包括硅藻土、二氧化硅气凝胶粉末以及多孔氮化硼中的至少一种；所述主体材料的粒度为200目‑1500目。本发明的微孔陶瓷雾化芯，通过自带微孔、具有高比表面的主体材料的加入，提高雾化芯的孔隙率及锁液能力，确保雾化液的充分雾化，增强雾化芯的使用体验感。

Description

微孔陶瓷雾化芯及其制备方法
技术领域
本发明涉及雾化技术领域，尤其涉及一种微孔陶瓷雾化芯及其制备方法。
背景技术
陶瓷雾化芯作为电子烟等雾化领域的核心部件，随着该领域的发展，人们对陶瓷雾化芯的要求就不仅仅是雾化，其雾化效果也成为了评判雾化芯的一个重要指标。
目前的陶瓷雾化芯存在着雾化颗粒大、使用或运输过程中漏液、高温烧结使雾化芯收缩变形等主要问题，极大程度上限制了陶瓷雾化芯的发展。
发明内容
本发明要解决的技术问题在于，提供一种孔隙率高、提高雾化效果的微孔陶瓷雾化芯及其制备方法。
本发明解决其技术问题所采用的技术方案是：提供一种微孔陶瓷雾化芯，包括原料及其质量份数如下：主体材料10-50份、陶瓷粉体0-40份、助烧剂10-50份、造孔剂0-20份、石蜡20-50份以及表面活性剂0.1-2.0份；
所述主体材料包括硅藻土、二氧化硅气凝胶粉末以及多孔氮化硼中的至少一种；所述主体材料的粒度为200目-1500目。
优选地，所述陶瓷粉体包括石英砂、氮化硅、硅粉和刚玉中的至少一种，粒度为100目-1500目。
优选地，所述助烧剂为金属氧化物或玻璃粉，粒度为200目-2000目，始熔温度为300℃-600℃。
优选地，所述金属氧化物为氧化镁、二氧化钛、氧化铌中至少一种。
优选地，所述玻璃粉为非铅系低温熔融玻璃粉、稀有元素系低温熔融玻璃粉或硼系低熔点玻璃粉。
优选地，所述造孔剂包括小麦粉、PS微球和谷壳粉中至少一种，粒度为200目-1000目。
优选地，所述石蜡为半炼或精炼石蜡，熔点为40℃-100℃。
优选地，所述表面活性剂包括失水山梨醇脂肪酸酯、聚山梨酯和油酸中至少一种。
本发明还提供一种微孔陶瓷雾化芯的制备方法，包括以下步骤：
S1、按质量份数将各原料混合，压制形成坯体；
S2、将所述坯体置于烧结炉中，在500℃-800℃下进行烧结。
本发明的有益效果：通过自带微孔、具有高比表面的主体材料的加入，提高雾化芯的孔隙率及锁液能力，确保雾化液的充分雾化，增强雾化芯的使用体验感。
在制备时，以低温(500℃-800℃)烧结成型，制备条件简单易实施。
附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明中硅藻土的SEM图；
图2是本发明的微孔陶瓷雾化芯的SEM图。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。
本发明的微孔陶瓷雾化芯，包括原料及其质量份数如下：主体材料10-50份、陶瓷粉体0-40份、助烧剂10-50份、造孔剂10-20份、石蜡20-50份以及表面活性剂0.1-2.0份。
其中，主体材料选择自带微孔、具有高比表面的材料，在雾化芯中能提高锁液效果并使雾化颗粒细腻。该主体材料包括硅藻土、二氧化硅气凝胶粉末以及多孔氮化硼中的至少一种。主体材料的粒度为200目-1500目。
主体材料中，硅藻土主要成分是硅酸质，表面有无数细孔，具有吸附性能强、容重轻、细度均匀、pH值中性无毒及混合均匀性好等优点。硅藻土的SEM图如图1所示，从图中示出的硅藻土粉体颗粒的显微形貌表征可知，硅藻土分布着均匀的微孔，比表面较大。
二氧化硅气凝胶粉末是利用常压干燥方法制备的低密度、低导热系数、高比表面、高吸附性的气凝胶材料；多孔氮化硼是一种新型非氧化物多孔材料，内部由相互贯通或封闭的孔洞构成，具有高比表面积和丰富的孔道结构，孔径尺寸可根据实际应用进行调控。
陶瓷粉体作为微孔陶瓷雾化芯的骨架材料，可包括石英砂、氮化硅、硅粉和刚玉中的至少一种。陶瓷粉体优选粒度为100目-1500目。
助烧剂为金属氧化物或玻璃粉，粒度为200目-2000目，始熔温度为300℃-600℃。金属氧化物可为氧化镁、二氧化钛、氧化铌等中至少一种。玻璃粉可为非铅系低温熔融玻璃粉、稀有元素系低温熔融玻璃粉或硼系低熔点玻璃粉。
造孔剂为小麦粉、PS微球及谷壳粉中至少一种，粒度为200目-1000目。
石蜡为半炼或精炼石蜡，熔点为40℃-100℃。
表面活性剂为失水山梨醇脂肪酸酯(司盘)、聚山梨酯(吐温)和油酸中至少一种。
本发明的微孔陶瓷雾化芯的制备方法，包括以下步骤：
S1、按质量份数将各原料混合，压制形成坯体。
对于压制成型，可以采用热压铸成型，也可以干压成型。
S2、将坯体置于烧结炉中，在500℃-800℃下进行烧结，以一次烧结方式得到微孔雾化芯。
可以理解地，本发明的微孔陶瓷雾化芯的制备方法不限于上述热压铸或干压，其他成型制备雾化芯的方法均可采用。
本发明的微孔陶瓷雾化芯的SEM图如图2所示，从图可看出，雾化芯除了由颗粒堆积及造孔剂形成的孔外，主体材料的加入使微孔大幅增加，在确保进液的同时，极大的改善了微孔雾化芯的毛细作用，储液锁液能力大大提升，使雾化器工作时保证充分供油，并且使雾化颗粒细腻。
以下通过具体实施例对本发明作进一步说明。
实施例1：
各原料份数如下：硅藻土80份，玻璃粉50份，石蜡50份，油酸0.5份；将上述原料混合后进行热压铸成型，于500℃-800℃下一次烧结，形成微孔雾化芯。
实施例2：
硅藻土改为二氧化硅气凝胶粉末，其余与实施例1相同。
实施例3：
硅藻土改为多孔氮化硼，其余与实施例1相同。
实施例4：
原料在实施例1基础上增加小麦粉10份，其余与实施例1相同。
实施例5：
原料在实施例1基础上增加小麦粉20份，其余与实施例1相同。
实施例6：
各原料份数如下：硅藻土40份，硅粉10份，玻璃粉50份，小麦粉20份，石蜡40份，油酸0.5份；将上述原料混合后进行热压铸成型，于500℃-800℃下一次烧结，形成微孔雾化芯。
实施例7：
各原料份数如下：硅藻土40份，硅粉20份，玻璃粉40份，小麦粉20份，石蜡40份，油酸0.5份；将上述原料混合后进行热压铸成型，于500℃-800℃下一次烧结，形成微孔雾化芯。
实施例8：
各原料份数如下：硅藻土40份，石英砂20份，玻璃粉40份，小麦粉20份，石蜡40份，油酸0.5份；将上述原料混合后进行热压铸成型，于500℃-800℃下一次烧结，形成微孔雾化芯。
实施例9：
各原料份数如下：硅藻土40份，刚玉20份，玻璃粉40份，小麦粉20份，石蜡40份，油酸0.5份；将上述原料混合后进行热压铸成型，于500℃-800℃下一次烧结，形成微孔雾化芯。
实施例10：
各原料份数如下：二氧化硅气凝胶粉末40份，硅粉20份，玻璃粉40份，小麦粉20份，石蜡40份，油酸0.5份；将上述原料混合后进行热压铸成型，于500℃-800℃下一次烧结，形成微孔雾化芯。
实施例11：
各原料份数如下：多孔氮化硼40份，硅粉20份，玻璃粉40份，小麦粉20份，石蜡40份，油酸0.5份；将上述原料混合后进行热压铸成型，于500℃-800℃下一次烧结，形成微孔雾化芯。
比较例1：
各原料份数如下：刚玉粉70份，玻璃粉30份，小麦粉20份，石蜡30份，油酸0.5份；将上述原料混合后进行热压铸成型，于500℃-800℃下一次烧结，形成微孔雾化芯。
比较例2：
各原料份数如下：石英砂70份，玻璃粉30份，小麦粉20份，石蜡30份，油酸0.5份；将上述原料混合后进行热压铸成型，于500℃-800℃下一次烧结，形成微孔雾化芯。
对实施例1-11及比较例1-2得到的微孔雾化芯的孔隙率(阿基米德排水法)及吸水率进行测试，测试结果如下表1。
表1
Figure BDA0003174150440000061
Figure BDA0003174150440000071
由表1结果可知，相比于比较例的雾化芯的孔隙率偏小、孔径偏大、雾化芯储液能力低及易产生漏油等问题，本发明中通过硅藻土等主体材料的加入，使得微孔雾化芯的孔隙率明显升高，且平均孔径能保持在一个相对平稳偏小的水平，确保了雾化芯有较佳的锁液能力。
以上所述仅为本发明的实施例，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 (9)

1.一种微孔陶瓷雾化芯，其特征在于，包括原料及其质量份数如下：主体材料10-50份、陶瓷粉体0-40份、助烧剂10-50份、造孔剂0-20份、石蜡20-50份以及表面活性剂0.1-2.0份；
所述主体材料包括硅藻土、二氧化硅气凝胶粉末以及多孔氮化硼中的至少一种；所述主体材料的粒度为200目-1500目。
2.根据权利要求1所述的微孔陶瓷雾化芯，其特征在于，所述陶瓷粉体包括石英砂、氮化硅、硅粉和刚玉中的至少一种，粒度为100目-1500目。
3.根据权利要求1所述的微孔陶瓷雾化芯，其特征在于，所述助烧剂为金属氧化物或玻璃粉，粒度为200目-2000目，始熔温度为300℃-600℃。
4.根据权利要求3所述的微孔陶瓷雾化芯，其特征在于，所述金属氧化物为氧化镁、二氧化钛、氧化铌中至少一种。
5.根据权利要求3所述的微孔陶瓷雾化芯，其特征在于，所述玻璃粉为非铅系低温熔融玻璃粉、稀有元素系低温熔融玻璃粉或硼系低熔点玻璃粉。
6.根据权利要求1所述的微孔陶瓷雾化芯，其特征在于，所述造孔剂包括小麦粉、PS微球和谷壳粉中至少一种，粒度为200目-1000目。
7.根据权利要求1所述的微孔陶瓷雾化芯，其特征在于，所述石蜡为半炼或精炼石蜡，熔点为40℃-100℃。
8.根据权利要求1所述的微孔陶瓷雾化芯，其特征在于，所述表面活性剂包括失水山梨醇脂肪酸酯、聚山梨酯和油酸中至少一种。
9.一种权利要求1-8任一项所述的微孔陶瓷雾化芯的制备方法，其特征在于，包括以下步骤：
S1、按质量份数将各原料混合，压制形成坯体；
S2、将所述坯体置于烧结炉中，在500℃-800℃下进行烧结。
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