WO2018108016A1 - 一种石墨烯改性纳米隔热浆料及其制备方法 - Google Patents
一种石墨烯改性纳米隔热浆料及其制备方法 Download PDFInfo
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- WO2018108016A1 WO2018108016A1 PCT/CN2017/114904 CN2017114904W WO2018108016A1 WO 2018108016 A1 WO2018108016 A1 WO 2018108016A1 CN 2017114904 W CN2017114904 W CN 2017114904W WO 2018108016 A1 WO2018108016 A1 WO 2018108016A1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Definitions
- the invention relates to the field of thermal insulation pastes, in particular to a graphene modified nano thermal insulation slurry and a preparation method thereof.
- Building insulation is an important aspect of saving energy and improving the function of building residence and use. Building energy consumption accounts for 30% to 40% of the total energy consumption of human beings, and most of them are energy consumption for heating and air conditioning, so building energy conservation is of great significance. According to research statistics, in terms of building energy consumption, the heat dissipation of building doors and windows in China accounts for more than 50% of the total heat dissipation in the building, which is 3 to 5 times that of developed countries. Therefore, improving the thermal insulation performance of doors and windows is an effective way to reduce the energy consumption of buildings.
- Carbon is one of the most common and wonderful materials on earth. It can form the hardest diamond in the world and the softest graphite. In the past 20 years, carbon nanomaterials have been the frontier of technological innovation. The fullerene discovered in 1985 and the carbon nanotubes discovered in 1991 have caused a huge research boom.
- the oxidation methods of graphite mainly include Hummers, Brondie and Staudenmaier. They all process the original graphite with inorganic strong protonic acid, insert small molecules of strong acid into the graphite layer, and then oxidize it with strong oxidant.
- the prepared graphite oxide needs to be subjected to stripping, reduction and other steps to obtain a single layer of graphene.
- the stripping method is generally performed by ultrasonic stripping method, that is, the graphite oxide suspension is ultrasonicated at a certain power for a certain period of time.
- the prepared single-layer graphene oxide needs to be reduced to obtain graphene, and the reduction methods include chemical reduction method, thermal reduction method, electrochemical reduction method and the like.
- the reducing agents commonly used in the chemical reduction method are sodium borohydride, hydrazine, and the like.
- the object of the present invention is to provide a graphene-modified nano-insulation slurry and a preparation method thereof, aiming at solving the problem of poor heat insulation effect of the existing transparent heat-insulating coating.
- a graphene-modified nano-insulation slurry wherein the following components are included by weight:
- Nano ATO powder 5 to 15 parts
- Dispersing agent 1 to 5 parts
- Deionized water 50 to 80 parts
- the graphene-modified nano-insulation slurry wherein the parts include the following components by weight:
- Nano ATO powder 5 parts;
- Dispersing agent 3 parts;
- the graphene-modified nano-insulation slurry wherein the parts include the following components by weight:
- Nano ATO powder 8 parts;
- Dispersing agent 3 parts;
- the graphene-modified nano-insulation slurry wherein the parts include the following components by weight:
- Nano ATO powder 15 parts;
- Dispersing agent 4 parts;
- the nano-ATO powder is added to deionized water, and then stirred, and the graphene aqueous dispersion and a certain dispersant and defoaming agent are added during the stirring, and then dispersed, and the remaining dispersion is added during the dispersion.
- the agent then obtains a graphene-modified nano-insulation slurry.
- the method for preparing a graphene-modified nano-insulation slurry comprises the following steps:
- the graphene-modified nano-insulation slurry wherein the mixture is uniformly mixed by an ultrasonic pulverizer.
- the graphene-modified nano-insulation slurry wherein a dispersion of 75% of the upper layer is taken, by volume ratio.
- the nano-ATO powder having heat insulating function is modified by graphene, and the heat insulating slurry prepared for use in building glass (or other substrate) has heat insulating function while being in visible light range. It has high visible light transmittance, high infrared ray rejection, high adhesion and hardness.
- the present invention provides a graphene-modified nano-insulation slurry and a preparation method thereof, and the present invention will be further described in detail below in order to make the objects, technical solutions and effects of the present invention more clear and clear. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
- the present invention provides a graphene-modified nano-insulation slurry, wherein the following components are included by weight:
- Nano ATO powder 5 to 15 parts
- Dispersing agent 1 to 5 parts
- Deionized water 50 to 80 parts
- the nano-ATO powder with thermal insulation function is modified by graphene, and the prepared thermal insulation slurry is used for building glass (or other substrate) to have heat insulation function and high in visible light range. Visible light transmittance, high infrared ray rejection, high adhesion and hardness.
- the graphene of the present invention is added in the form of a graphene aqueous dispersion, and the added graphene aqueous dispersion is obtained from a cheap and easily available graphite powder system, and the detailed preparation process is as follows.
- the dispersant used in the preparation of the graphene-modified nano-insulation slurry is cetyltrimethylammonium bromide (CTAB).
- CTAB cetyltrimethylammonium bromide
- the nano ATO powder of the invention is a self-purchased nano powder.
- the invention also provides a method for preparing a graphene-modified nano-insulation slurry according to any of the above, which comprises the following steps:
- the nano-ATO powder is added to deionized water, and then stirred, and the graphene aqueous dispersion and a certain dispersant and defoaming agent are added during the stirring, and then dispersed, and the remaining dispersion is added during the dispersion.
- the agent then obtains a graphene-modified nano-insulation slurry.
- the nano-ATO powder is added to deionized water, and then stirred by a magnetic stirrer. During the stirring, a graphene aqueous dispersion and a certain dispersing agent (such as 1/4 to 3/4 by weight of a dispersing agent) and defoaming are added. Auxiliary agent and the like are then dispersed by a ball mill, and the remaining dispersant is added in the dispersion process, and then a stable graphene-modified nano-insulation slurry is obtained.
- the parts by weight of each raw material are as follows:
- Nano ATO powder 5 to 15 parts
- Dispersing agent 1 to 5 parts
- Deionized water 50 to 80 parts
- the preparation method of the invention is simple, the equipment investment is low, the cost is low, the environment is green, and the slurry is extremely stable, and the temperature is maintained. It can be used for at least 6 months and can be widely used as a heat insulating agent for glass windows, antistatic agents, etc.
- the invention also provides a preparation method of the aqueous graphene dispersion, and the preparation method of the aqueous graphene dispersion comprises the following steps:
- the specific implementation of the method for preparing the aqueous graphene dispersion is as follows: the previously prepared graphite oxide is dispersed in a certain amount of deionized water through an ultrasonic water bath, and then a certain amount of carbon nanotubes is added, and the above mixture is mixed by an ultrasonic pulverizer. The liquid was uniformly mixed, centrifuged, and the dispersion of 75% by volume of the upper layer was taken. The dispersion was placed in a three-necked flask equipped with a constant flow pump, heated to 95 ° C, and a certain amount of hydrazine hydrate was added thereto, and a constant-speed magnetic stirring reaction was carried out. 2h, a graphene aqueous dispersion was obtained.
- the aqueous graphene dispersion used in the present invention is obtained from a cheap and easily available graphite powder system.
- the present invention uses carbon nanotubes (CNT) as a surfactant.
- Graphene modified nano-insulation paste by weight, includes the following components:
- Nano ATO powder 5 parts;
- Dispersing agent 3 parts;
- Graphene modified nano-insulation paste by weight, includes the following components:
- Nano ATO powder 8 parts;
- Dispersing agent 3 parts;
- Graphene modified nano-insulation paste by weight, includes the following components:
- Nano ATO powder 15 parts;
- Dispersing agent 4 parts;
- the graphene-modified nano-insulation slurry of the present invention and a preparation method thereof, the nano-ATO powder having a heat-insulating function is modified by graphene to prepare the heat insulation
- the slurry is used in architectural glass (or other substrates) for thermal insulation while having high visible light transmission, high infrared ray rejection, high adhesion and hardness in the visible range.
- the preparation method of the invention is simple, the equipment investment is small, the cost is low, the environment is green, and the slurry is extremely stable, and is stored at room temperature for at least 6 months, and can be widely used as a heat insulating agent for glass windows, an antistatic agent and the like.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Building Environments (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
Claims (10)
- 一种石墨烯改性纳米隔热浆料,其特征在于,按重量份计,包括以下组分:纳米ATO粉体:5~15份;石墨烯水分散液:10~20份;分散剂:1~5份;去离子水:50~80份;消泡剂:1~3份。
- 根据权利要求1所述的石墨烯改性纳米隔热浆料,其特征在于,按重量份计,包括以下组分:纳米ATO粉体:5份;石墨烯水分散液:10份;分散剂:3份;去离子水:80份;消泡剂:2份。
- 根据权利要求1所述的石墨烯改性纳米隔热浆料,其特征在于,按重量份计,包括以下组分:纳米ATO粉体:8份;石墨烯水分散液:15份;分散剂:3份;去离子水:72份;消泡剂:2份。
- 根据权利要求1所述的石墨烯改性纳米隔热浆料,其特征在于,按重量份计,包括以下组分:纳米ATO粉体:15份;石墨烯水分散液:18份;分散剂:4份;去离子水:60份;消泡剂:3份。
- 根据权利要求1所述的石墨烯改性纳米隔热浆料,其特征在于,所述分散剂为十六烷基三甲基溴化胺。
- 一种如权利要求1~5任一所述的石墨烯改性纳米隔热浆料的制备方法,其特征在于,包括以下步骤:按照上述配方,将纳米ATO粉体加到去离子水中,然后进行搅拌,搅拌过程中加入石墨烯水分散液以及一定的分散剂和消泡剂,再进行分散,分散过程中再加入剩余的分散剂,然后得到石墨烯改性纳米隔热浆料。
- 根据权利要求6所述的石墨烯改性纳米隔热浆料的制备方法,其特征在于,所述石墨烯水分散液的制备方法包括以下步骤:将预先制备好的氧化石墨分散在去离子水中,然后加入表面活性剂,接着使上述混合液均匀混合,离心,取上层分散液,将此分散液升温至90℃~100℃,加入水合肼,搅拌反应1.5~2.5h,得到石墨烯水分散液。
- 根据权利要求7所述的石墨烯改性纳米隔热浆料的制备方法,其特征在于,所述表面活性剂为碳纳米管。
- 根据权利要求7所述的石墨烯改性纳米隔热浆料,其特征在于,用超声粉碎仪使上述混合液均匀混合。
- 根据权利要求7所述的石墨烯改性纳米隔热浆料,其特征在于,取上层75%的分散液,以体积比计。
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CN201611167993.7A CN106590078A (zh) | 2016-12-16 | 2016-12-16 | 一种石墨烯改性纳米隔热浆料及其制备方法 |
CN201611167993.7 | 2016-12-16 |
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CN114394794A (zh) * | 2021-12-27 | 2022-04-26 | 湖北三棵树新材料科技有限公司 | 一种具有防开裂性能的别墅用的填充砂浆的制备方法 |
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CN106590078A (zh) * | 2016-12-16 | 2017-04-26 | 深圳大学 | 一种石墨烯改性纳米隔热浆料及其制备方法 |
CN107815229A (zh) * | 2017-11-30 | 2018-03-20 | 明光市泰丰新材料有限公司 | 一种内墙用防辐射浆料及制备方法 |
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CN104058392A (zh) * | 2014-06-12 | 2014-09-24 | 同济大学 | 一种石墨烯胶体分散液的制备方法 |
CN104230177A (zh) * | 2013-06-18 | 2014-12-24 | 南京工业大学 | 一种纳米ato水性浆料的制备方法 |
CN104629512A (zh) * | 2015-02-06 | 2015-05-20 | 海宁安剑贸易有限公司 | 一种触屏液及其制作方法 |
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CN106590078A (zh) * | 2016-12-16 | 2017-04-26 | 深圳大学 | 一种石墨烯改性纳米隔热浆料及其制备方法 |
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CN104230177A (zh) * | 2013-06-18 | 2014-12-24 | 南京工业大学 | 一种纳米ato水性浆料的制备方法 |
CN104058392A (zh) * | 2014-06-12 | 2014-09-24 | 同济大学 | 一种石墨烯胶体分散液的制备方法 |
CN104629512A (zh) * | 2015-02-06 | 2015-05-20 | 海宁安剑贸易有限公司 | 一种触屏液及其制作方法 |
CN105925018A (zh) * | 2016-05-13 | 2016-09-07 | 上海纳米技术及应用国家工程研究中心有限公司 | 一种纳米级石墨烯掺杂氧化锡锑隔热分散液的制备方法 |
CN106590078A (zh) * | 2016-12-16 | 2017-04-26 | 深圳大学 | 一种石墨烯改性纳米隔热浆料及其制备方法 |
Cited By (1)
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CN114394794A (zh) * | 2021-12-27 | 2022-04-26 | 湖北三棵树新材料科技有限公司 | 一种具有防开裂性能的别墅用的填充砂浆的制备方法 |
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