CN114177362B - 一种液态金属的封装方法 - Google Patents

一种液态金属的封装方法 Download PDF

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CN114177362B
CN114177362B CN202010959088.5A CN202010959088A CN114177362B CN 114177362 B CN114177362 B CN 114177362B CN 202010959088 A CN202010959088 A CN 202010959088A CN 114177362 B CN114177362 B CN 114177362B
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王磊
李雷
刘静
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Technical Institute of Physics and Chemistry of CAS
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Abstract

本发明涉及金属材料技术领域，尤其涉及一种液态金属的封装方法。所述封装方法包括如下步骤：S1、配制高分子溶液；S2、将液态金属分散在所述高分子溶液中，得液态金属溶液；其中，所述液态金属与所述高分子溶液的体积比为1：1～20。本发明通过将液态金属分散在高分子溶液中制得液态金属溶液，并将液态金属溶液注入水中或其他溶剂中，高分子溶液中的溶剂挥发或扩散在溶液中，致使高分子材料析出，并包裹液态金属，实现液态金属的快速封装，形成可注射相变的液态金属复合材料。

Description

一种液态金属的封装方法
技术领域
本发明涉及金属材料技术领域，尤其涉及一种液态金属的封装方法。
背景技术
液态金属具有高导热率和高导电率特性，在医疗领域有着重要的应用前景。但是由于液态金属生物相容性差，不能和生物体进行大面积接触，否则会产生严重排异行为；因此，如何避免液态金属在注射过程中对生物体的伤害成为本领域研究人员亟需解决的技术难题。
有鉴于此，特提出本发明。
发明内容
本发明针对液态金属生物相容性较差、难封装等问题，提供了一种液态金属的封装方法，以避免液态金属在使用过程中(尤其是在生物医疗领域使用过程中)容易泄露的缺陷。
具体而言，所述封装方法包括如下步骤：
S1、配制高分子溶液；
S2、将液态金属分散在所述高分子溶液中，得液态金属溶液；
其中，所述液态金属与所述高分子溶液的体积比为1：1～20。
本发明发现，通过将液态金属分散在高分子溶液中制得液态金属溶液，并将液态金属溶液注入水中或其他溶剂中，高分子溶液中的溶剂挥发或扩散在溶液中，致使高分子材料析出，并包裹液态金属，实现液态金属的快速封装，形成可注射相变的液态金属复合材料。
作为优选，所述封装方法还包括将所述液态金属溶液注入水或乙醇中的步骤。
作为优选，所述高分子溶液的溶质为聚偏氟乙烯、聚氯乙烯、聚甲基丙烯酸甲酯中的一种或几种，溶剂为N，N-二甲基甲酰胺(DMF)。
进一步地，以g/mL计，所述溶质与所述溶剂的质量体积比为1：5～50。
本发明中，上述高分子溶液有利于液态金属均匀分散；且上述溶剂更容易挥发或扩散，有利于溶质的析出，进而包裹液态金属，完成封装。
作为优选，所述液态金属为镓铟基液态金属。
进一步地，所述镓铟基液态金属中镓的质量百分比为75～100％、铟的质量百分比为0～25％。
本发明中，上述液态金属更易在上述高分子溶液中分散均匀。
作为优选，步骤S2中，所述分散的粒径为0.1～3mm。
本发明中，可通过搅拌或震动等方式将液态金属分散在高分子溶液中。
作为本发明的较佳技术方案，所述封装方法包括如下步骤：
S1、将3～15g聚偏氟乙烯和/或聚氯乙烯溶解在50～200mL N，N-二甲基甲酰胺中，得高分子溶液；
S2、将镓铟基液态金属分散在所述高分子溶液中，分散粒径为0.1～3mm，得液态金属溶液；所述镓铟基液态金属与所述高分子溶液的体积比为1：1～20；
S3、将所述液态金属溶液注入到水或乙醇中。
本发明还提供一种液态金属复合材料，其利用上述方法制得。
本发明的有益效果：
本发明可在0.1s内将液态金属快速封装在高分子中，隔绝氧气保存。
附图说明
图1为实施例1中液态金属溶液注入水中的示意图。
具体实施方式
以下实施例用于说明本发明，但不用来限制本发明的范围。
实施例中所涉及的液态金属为镓铟基液态金属，其中，镓的质量百分比为75～100％、铟的质量百分比为0～25％。
实施例1
本实施例提供一种液态金属的封装方法，包括如下步骤：
S1、将5g聚氯乙烯溶解在100mL N，N-二甲基甲酰胺中，得高分子溶液；
S2、将液态金属分散在所述高分子溶液中，分散粒径为0.1mm，得液态金属溶液；所述液态金属与所述高分子溶液的体积比为1：10；
S3、将所述液态金属溶液用吸管注射到水中，如图1所示，形成悬浮状态，液态金属在水中，高分子部分在水中，部分在水面。
本实施例同时提供利用上述方法制得的液态金属复合材料。
实施例2
本实施例提供一种液态金属的封装方法，包括如下步骤：
S1、将15g聚偏氟乙烯溶解在100mLN，N-二甲基甲酰胺中，得高分子溶液；
S2、将液态金属分散在所述高分子溶液中，分散粒径为2mm，得液态金属溶液；所述液态金属与所述高分子溶液的体积比为1：3；
S3、将所述液态金属溶液用吸管注射到水中，聚偏氟乙烯均匀包裹液态金属。
本实施例同时提供利用上述方法制得的液态金属复合材料。
实施例3
本实施例提供一种液态金属的封装方法，包括如下步骤：
S1、将3g聚甲基丙烯酸甲酯溶解在100mL N，N-二甲基甲酰胺中，得高分子溶液；
S2、将液态金属分散在所述高分子溶液中，分散粒径为3mm，得液态金属溶液；所述液态金属与所述高分子溶液的体积比为5：100；
S3、将所述液态金属溶液用吸管注射到水中，聚甲基丙烯酸甲酯均匀包裹液态金属。
本实施例同时提供利用上述方法制得的液态金属复合材料。
对比例1
本对比例提供一种液态金属的封装方法，与实施例1的区别仅在于：液态金属与高分子溶液的体积比为1：25。
本对比例制得的液态金属复合材料高分子厚度较薄。
对比例2
本对比例提供一种液态金属的封装方法，与实施例1的区别仅在于：将3g聚氯乙烯溶解在210mL N，N-二甲基甲酰胺中，得高分子溶液；
本对比例制得的液态金属复合材料高分子厚度较厚。
虽然，上文中已经用一般性说明、具体实施方式及试验，对本发明作了详尽的描述，但在本发明基础上，可以对之作一些修改或改进，这对本领域技术人员而言是显而易见的。因此，在不偏离本发明精神的基础上所做的这些修改或改进，均属于本发明要求保护的范围。

Claims (5)

1.一种液态金属的封装方法，其特征在于，包括如下步骤：
S1、配制高分子溶液；
S2、将液态金属分散在所述高分子溶液中，得液态金属溶液；
S3、将所述液态金属溶液注入到水或乙醇中；可在0.1s内将液态金属快速封装在高分子中；
其中，所述液态金属与所述高分子溶液的体积比为1：1～20；
所述高分子溶液的溶质为聚偏氟乙烯、聚氯乙烯、聚甲基丙烯酸甲酯中的一种或几种，溶剂为N，N-二甲基甲酰胺；
以g/mL计，所述溶质与所述溶剂的质量体积比为1：5～50；
步骤S2中，所述分散的粒径为0.1～3mm。
2.根据权利要求1所述的液态金属的封装方法，其特征在于，所述液态金属为镓铟基液态金属。
3.根据权利要求2所述的液态金属的封装方法，其特征在于，所述镓铟基液态金属中镓的质量百分比为75～100％、铟的质量百分比为0～25％。
4.根据权利要求1-3任一项所述的液态金属的封装方法，其特征在于，包括如下步骤：
S1、将聚偏氟乙烯和/或聚氯乙烯溶解在N，N-二甲基甲酰胺中，得高分子溶液；
S2、将镓铟基液态金属分散在所述高分子溶液中，分散粒径为0.1～3mm，得液态金属溶液；所述镓铟基液态金属与所述高分子溶液的体积比为1：1～20。
5.一种液态金属复合材料，其特征在于，利用权利要求1～4任一项所述方法制得。
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