CN111621036B - 一种具有光热转换功能的石蜡Pickering乳液及其制备方法 - Google Patents
一种具有光热转换功能的石蜡Pickering乳液及其制备方法 Download PDFInfo
- Publication number
- CN111621036B CN111621036B CN202010459637.2A CN202010459637A CN111621036B CN 111621036 B CN111621036 B CN 111621036B CN 202010459637 A CN202010459637 A CN 202010459637A CN 111621036 B CN111621036 B CN 111621036B
- Authority
- CN
- China
- Prior art keywords
- paraffin
- pickering emulsion
- photo
- ldhs
- conversion function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000012188 paraffin wax Substances 0.000 title claims abstract description 92
- 239000000839 emulsion Substances 0.000 title claims abstract description 49
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 28
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 18
- 230000008018 melting Effects 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 230000001804 emulsifying effect Effects 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 3
- 150000004679 hydroxides Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 238000004781 supercooling Methods 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 2
- 239000003995 emulsifying agent Substances 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 abstract 1
- 150000004692 metal hydroxides Chemical class 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229910003023 Mg-Al Inorganic materials 0.000 description 38
- 239000007864 aqueous solution Substances 0.000 description 16
- 239000012071 phase Substances 0.000 description 16
- 238000005303 weighing Methods 0.000 description 16
- 239000000243 solution Substances 0.000 description 5
- 239000012782 phase change material Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001938 differential scanning calorimetry curve Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2391/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2391/06—Waxes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Colloid Chemistry (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
一种具有光热转换功能的石蜡Pickering乳液及其制备方法,涉及太阳能光热转换与存储领域。按质量百分比计包括以下组分:石蜡10%~40%,镁‑铝层状双金属氢氧化物1%~5%,氧化石墨烯大于0、小于等于0.1%,余量为水;本发明以镁‑铝层状双金属氢氧化物和氧化石墨烯代替化学乳化剂,制备一种低过冷度、低黏度、高热导率、高度稳定、具有优异光热转换性能的石蜡Pickering乳液,且制备方法简单。
Description
技术领域
本发明涉及太阳能光热转换与存储领域,尤其涉及一种具有光热转换功能的石蜡Pickering乳液及其制备方法。
背景技术
众所周知,太阳能是清洁的可再生能源。高效利用太阳能是应对能源危机和治理环境污染的重要手段。太阳能的直接利用包括光热转换、光电转换和光催化等方式。其中,太阳能光热转换是到目前为止效率最高的一种方式。
石蜡乳液是一种兼具传热和储热功能的新型流体,它在太阳能光热转换中展现出良好的应用前景,但是目前还存在如下突出问题:
第一,石蜡乳液通常成乳白色,消光性能欠佳,因此光热转换效率低(Wang F.,etal.Graphite nanoparticles-dispersed paraffin/water emulsion with enhancedthermal-physical property and photo-thermal performance.Solar EnergyMaterials and Solar Cells,2016,147:101-107)。
第二,石蜡乳液存在明显的过冷现象(Delgado M.,et al.Review on phasechange material emulsions and microencapsulated phase change materialslurries:Materials,heat transfer studies and applications.Renewable andSustainable Energy Reviews,2012,16(1):253-273)。过冷现象延迟了石蜡结晶,导致石蜡在降温时不凝固或者凝固不完全,从而极大降低了其储热的性能(陈琳,等.一种测量石蜡相变乳液过冷度的新方法:平衡态比容法.化工学报,2019,70(9):3370-3376)。
第三,石蜡乳液的热导率低。石蜡的热导率约为0.2W·m-1·K-1,不到水的热导率的二分之一,所以石蜡乳液的热导率低于水的热导率(Qu Y.,et al.Experimental studyon thermal conductivity of paraffin-based shape-stabilized phase changematerial with hybrid carbon nano-additives.Renewable Energy,2020,146:2637-2645)。固含量为20%的石蜡乳液的热导率仅为水的60%(刘小诗,等.氧化石墨烯/石蜡复合相变乳液的制备及对流传热特性.化工学报,2019,70(3):1188-1197)。低热导率不利于热量在石蜡乳液中扩散,从而在表面形成热点,增加了热损失。
第四,石蜡乳液的黏度高。为了获得稳定的石蜡乳液,在制备时需要添加表面活性剂。通常来讲,表面活性剂越多,石蜡乳液越稳定,但是黏度也会随之升高(Huang L.,Petermann M.An experimental study on rheological behaviors of paraffin/waterphase change emulsion.International Journal of Heat and Mass Transfer,2015,83:479-486)。高黏度会显著增加石蜡乳液在管路中的流动阻力,从而降低系统的能效比。
发明内容
本发明的目的在于解决现有技术中的上述问题,提供一种具有光热转换功能的石蜡Pickering乳液及其制备方法。
为达到上述目的,本发明采用如下技术方案:
一种具有光热转换功能的石蜡Pickering乳液,按质量百分比计包括以下组分:石蜡10%~40%,镁-铝层状双金属氢氧化物(magnesium-aluminum layered doublehydroxides,Mg-Al LDHs)1%~5%,氧化石墨烯(graphene oxide,GO)大于0、小于等于0.1%,余量为水。
所述镁-铝层状双金属氢氧化物的含量为2%。
所述石蜡的含量为30%。
所述石蜡为熔点<90℃的固体石蜡。
一种具有光热转换功能的石蜡Pickering乳液的制备方法,包括如下步骤:
1)将Mg-Al LDHs添加到水中,溶解分散,制得A溶液;
2)将GO添加到上述A溶液中,溶解分散,制得B溶液;
3)将石蜡添加到上述B溶液中,然后加热到石蜡熔点以上,待石蜡完全熔化后,搅拌乳化,即制得具有光热转换功能的石蜡Pickering乳液。
在步骤1)中,所述水采用去离子水。
所述溶解分散包括以下:先搅拌溶解,再超声分散。
相对于现有技术,本发明技术方案取得的有益效果是:
1、GO可吸收太阳光辐射,实现光热转换;
2、石蜡液滴表面的Mg-Al LDHs作为晶种,诱导石蜡异相成核结晶,降低了石蜡Pickering乳液的过冷度;
3、GO以纳米片的形式分散在水中,增大了石蜡Pickering乳液的热导率;
4、Mg-Al LDHs在水中形成三维网络结构,提高了石蜡Pickering乳液的稳定性,因此不需要添加乳化剂;
5、GO与Mg-Al LDHs相互作用,降低了石蜡Pickering乳液的黏度;
6、本发明制备方法简单,操作步骤少,无需严苛的反应条件等。
附图说明
图1为实施例1~4所制备的Pickering石蜡乳液的照片(从左到右GO含量分别为0.002%、0.01%、0.02%和0.04%);
图2为实施例1~4所制备的Pickering石蜡乳液在一个标准太阳光强度照射下的升温曲线(GO含量分别为0.002%、0.01%、0.02%和0.04%);
图3为实施例4制备的Pickering石蜡乳液的扫描电子显微镜图像;
图4为实施例1~4制备的Pickering石蜡乳液的DSC曲线(GO含量分别为0.002%、0.01%、0.02%和0.04%);
图5为实施例1~4制备的Pickering石蜡乳液的黏度-剪切速率的曲线(GO含量分别为0.002%、0.01%、0.02%和0.04%)。
具体实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚、明白,以下结合附图和实施例,对本发明做进一步详细说明。除特别说明外,实施例中所有百分比均为质量百分比。
实施例1
称取1g的Mg-Al LDHs,添加到34g去离子水中,搅拌溶解,超声分散,制得Mg-AlLDHs水溶液;称取1mg的GO,添加到上述Mg-Al LDHs水溶液中,搅拌溶解,超声分散,制得水相;将15g熔点为58~60℃石蜡添加到上述水相中,加热到80℃,待石蜡完全熔化后,搅拌乳化,制得石蜡含量为30%,Mg-Al LDHs含量为2%,GO含量为0.002%的具有光热转换功能的石蜡Pickering乳液。
实施例2
称取1g的Mg-Al LDHs,添加到34g去离子水中,搅拌溶解,超声分散,制得Mg-AlLDHs水溶液;称取5mg的GO,添加到上述Mg-Al LDHs水溶液中,搅拌溶解,超声分散,制得水相;将15g熔点为58~60℃石蜡添加到上述水相中,加热到80℃,待石蜡完全熔化后,搅拌乳化,制得石蜡含量为30%,Mg-Al LDHs含量为2%,GO含量为0.01%的具有光热转换功能的石蜡Pickering乳液。
实施例3
称取1g的Mg-Al LDHs,添加到34g去离子水中,搅拌溶解,超声分散,制得Mg-AlLDHs水溶液;称取10mg的GO,添加到上述Mg-Al LDHs水溶液中,搅拌溶解,超声分散,制得水相;将15g熔点为58~60℃石蜡添加到上述水相中,加热到80℃,待石蜡完全熔化后,搅拌乳化,制得石蜡含量为30%,Mg-Al LDHs含量为2%,GO含量为0.02%的具有光热转换功能的石蜡Pickering乳液。
实施例4
称取1g的Mg-Al LDHs,添加到34g去离子水中,搅拌溶解,超声分散,制得Mg-AlLDHs水溶液;称取20mg的GO,添加到上述Mg-Al LDHs水溶液中,搅拌溶解,超声分散,制得水相;将15g熔点为58~60℃石蜡添加到上述水相中,加热到80℃,待石蜡完全熔化后,搅拌乳化,制得石蜡含量为30%,Mg-Al LDHs含量为2%,GO含量为0.04%的具有光热转换功能的石蜡Pickering乳液。
从图1中可以看出,随着GO含量的增加,所制备的石蜡Pickering乳液的颜色逐渐加深。
从图2中可以看出,随着GO含量的增加,所制备的石蜡Pickering乳液在太阳光照时的升温速度逐渐加快。
从图3中可以看出,在所制备的石蜡Pickering乳液中,石蜡液滴/颗粒均呈球状,直径<50μm。
从图4中可以看出,所制备的石蜡Pickering乳液在温度降低到约55℃时开始凝固,不存在过冷现象。
从图5中可以看出,随着GO含量的增加,所制备的石蜡Pickering乳液黏度反而降低。这说明GO与Mg-Al LDHs存在相互作用,可以降低石蜡Pickering乳液黏度。
实施例5
称取0.5g的Mg-Al LDHs,添加到44.5g去离子水中,搅拌溶解,超声分散,制得Mg-Al LDHs水溶液;称取1mg的GO,添加到上述Mg-Al LDHs水溶液中,搅拌溶解,超声分散,制得水相;将5g熔点为58~60℃石蜡添加到上述水相中,加热到80℃,待石蜡完全熔化后,搅拌乳化,制得石蜡含量为10%,Mg-Al LDHs含量为1%,GO含量为0.002%的具有光热转换功能的石蜡Pickering乳液。
实施例6
称取1g的Mg-Al LDHs,添加到39g去离子水中,搅拌溶解,超声分散,制得Mg-AlLDHs水溶液;称取5mg的GO,添加到上述Mg-Al LDHs水溶液中,搅拌溶解,超声分散,制得水相;将10g熔点为58~60℃石蜡添加到上述水相中,加热到80℃,待石蜡完全熔化后,搅拌乳化,制得石蜡含量为20%,Mg-Al LDHs含量为2%,GO含量为0.01%的具有光热转换功能的石蜡Pickering乳液。
实施例7
称取1.5g的Mg-Al LDHs,添加到33.5g去离子水中,搅拌溶解,超声分散,制得Mg-Al LDHs水溶液;称取10mg的GO,添加到上述Mg-Al LDHs水溶液中,搅拌溶解,超声分散,制得水相;将15g熔点为58~60℃石蜡添加到上述水相中,加热到80℃,待石蜡完全熔化后,搅拌乳化,制得石蜡含量为30%,Mg-Al LDHs含量为3%,GO含量为0.02%的具有光热转换功能的石蜡Pickering乳液。
实施例8
称取2g的Mg-Al LDHs,添加到28g去离子水中,搅拌溶解,超声分散,制得Mg-AlLDHs水溶液;称取20mg的GO,添加到上述Mg-Al LDHs水溶液中,搅拌溶解,超声分散,制得水相;将20g熔点为58~60℃石蜡添加到上述水相中,加热到80℃,待石蜡完全熔化后,搅拌乳化,制得石蜡含量为40%,Mg-Al LDHs含量为4%,GO含量为0.04%的具有光热转换功能的石蜡Pickering乳液。
Claims (4)
1.一种具有光热转换功能的石蜡Pickering乳液,其特征在于按质量百分比计包括以下组分:石蜡30%,氧化石墨烯大于0、小于等于0.1%,镁-铝层状双金属氢氧化物2%,余量为水;所述石蜡为熔点<90℃的固体石蜡。
2.权利要求1所述的一种具有光热转换功能的石蜡Pickering乳液的制备方法,其特征在于包括如下步骤:
1)将镁-铝层状双金属氢氧化物添加到水中,溶解分散,制得A溶液;
2)将氧化石墨烯添加到上述A溶液中,溶解分散,制得B溶液;
3)将石蜡添加到上述B溶液中,然后加热到石蜡熔点以上,待石蜡完全熔化后,搅拌乳化,即制得具有光热转换功能的石蜡Pickering乳液。
3.如权利要求2所述的制备方法,其特征在于:步骤1)中,所述水采用去离子水。
4.如权利要求2所述的制备方法,其特征在于所述溶解分散包括以下:先搅拌溶解,再超声分散。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010459637.2A CN111621036B (zh) | 2020-05-27 | 2020-05-27 | 一种具有光热转换功能的石蜡Pickering乳液及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010459637.2A CN111621036B (zh) | 2020-05-27 | 2020-05-27 | 一种具有光热转换功能的石蜡Pickering乳液及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111621036A CN111621036A (zh) | 2020-09-04 |
CN111621036B true CN111621036B (zh) | 2021-11-23 |
Family
ID=72257143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010459637.2A Expired - Fee Related CN111621036B (zh) | 2020-05-27 | 2020-05-27 | 一种具有光热转换功能的石蜡Pickering乳液及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111621036B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113368231B (zh) * | 2021-05-20 | 2022-12-27 | 南华大学 | 一种pickering乳液及其制备方法和作为疫苗免疫佐剂中的应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104801213A (zh) * | 2015-03-07 | 2015-07-29 | 中石化石油工程技术服务有限公司 | 一种高粘高稳定的Pickering 乳液制备方法 |
CN105038720A (zh) * | 2015-07-07 | 2015-11-11 | 安徽理工大学 | 一种可高效利用太阳能的定形相变复合材料及其制备方法 |
CN106634859A (zh) * | 2017-01-16 | 2017-05-10 | 西南科技大学 | 一种具有隔离结构的石墨烯导热定形相变材料的制备方法 |
CN106893031A (zh) * | 2017-03-18 | 2017-06-27 | 华南理工大学 | 一种红外激光驱动的石墨烯基水凝胶马达及其制备方法 |
-
2020
- 2020-05-27 CN CN202010459637.2A patent/CN111621036B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104801213A (zh) * | 2015-03-07 | 2015-07-29 | 中石化石油工程技术服务有限公司 | 一种高粘高稳定的Pickering 乳液制备方法 |
CN105038720A (zh) * | 2015-07-07 | 2015-11-11 | 安徽理工大学 | 一种可高效利用太阳能的定形相变复合材料及其制备方法 |
CN106634859A (zh) * | 2017-01-16 | 2017-05-10 | 西南科技大学 | 一种具有隔离结构的石墨烯导热定形相变材料的制备方法 |
CN106893031A (zh) * | 2017-03-18 | 2017-06-27 | 华南理工大学 | 一种红外激光驱动的石墨烯基水凝胶马达及其制备方法 |
Non-Patent Citations (1)
Title |
---|
Effect of dispersion pH on the formation and stability of pickering emulsions stabilized by layered double hydroxides particles;Fei Yang et al.;《Colloid and Interface Science》;20061028;第306卷;第285-295页 * |
Also Published As
Publication number | Publication date |
---|---|
CN111621036A (zh) | 2020-09-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113663615A (zh) | 一种具有光热转化效应的高潜热值相变微胶囊及其制备方法 | |
CN110684510B (zh) | 一种导热增强的热能存储定形相变复合材料及其制备方法 | |
CN103752234A (zh) | 一种氧化石墨烯相变微胶囊的制备方法 | |
CN106221676B (zh) | 多相变点的相变蓄热材料及其制备工艺 | |
CN111621036B (zh) | 一种具有光热转换功能的石蜡Pickering乳液及其制备方法 | |
CN101735775A (zh) | 用于太阳能热交换系统传热介质的纳米流体的制备方法 | |
CN102922177A (zh) | 纳米金属间化合物焊膏及其制备方法 | |
CN101050355A (zh) | 一种熔融盐传热蓄热介质及其制备方法 | |
CN100551991C (zh) | 一种碳酸熔融盐传热蓄热介质及其制备方法与应用 | |
CN111621264B (zh) | 一种纳米改性三水醋酸钠相变储热材料及其制备方法 | |
CN106634859A (zh) | 一种具有隔离结构的石墨烯导热定形相变材料的制备方法 | |
CN103059818A (zh) | 一种相变储能材料的制备方法 | |
CN109054759A (zh) | 填充纳米石墨烯片的相变复合材料及制备方法 | |
CN108003847A (zh) | 一种高导热MgO掺杂硝酸熔盐传热储热材料及其原位生成法和应用 | |
CN104962242A (zh) | 一种低过冷度相变材料微胶囊及其制备方法 | |
Kumar et al. | Application of phase change material in thermal energy storage systems | |
CN113462364B (zh) | 一种二维材料MXene稳定的水基相变乳液及其制备方法 | |
CN112588214A (zh) | 一种兼具光热转换和储能性质的相变材料微胶囊及制备方法 | |
CN110041895B (zh) | 一种储热传热材料及其制备方法 | |
CN107072121A (zh) | 一种消除热波峰的快速均热储能散热结构 | |
CN111849425B (zh) | 一种有机无机纳米复合相变储热材料及其制备方法 | |
CN113355055A (zh) | 一种高相变焓微胶囊及其制备方法 | |
Xuyang et al. | Application of phase change materials in building energy conservation | |
CN113943553B (zh) | 一种储热材料的制备方法 | |
CN108515189A (zh) | 一种石墨烯铜复合材料的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211123 |