Photo-thermal shape memory functional material as well as preparation method and application thereof

A functional material and photothermal technology, applied in shading screens, building components, buildings, etc., can solve the problems of complex device process and high cost, and achieve the effect of simple preparation process, fast polymerization reaction speed and simple preparation process

Active Publication Date: 2020-09-25
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the prior art, patents CN103556936B, CN202926158U and CN206874188U respectively introduce a preparation method and application of energy-saving intelligent blinds. Although they have a certain intelligent heat insulation effect, they all need to use electric motors to build blinds, and the device process is complicated and difficult. high cost

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  • Photo-thermal shape memory functional material as well as preparation method and application thereof
  • Photo-thermal shape memory functional material as well as preparation method and application thereof
  • Photo-thermal shape memory functional material as well as preparation method and application thereof

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preparation example Construction

[0033] The invention provides a preparation method of a photothermal shape memory functional material, and provides a preparation method of a photothermal shape memory functional material, comprising the following steps:

[0034] Step 1, adding monomeric substances methyl methacrylate, butyl acrylate, sodium lauryl sulfate and Triton X-100 into distilled water, stirring at a speed of 100rpm-1000rpm to mix the solution evenly, and obtain a single body water;

[0035] Step 2, adding the photothermal material and 3-(methacryloyloxy)propyltrimethoxysilane into distilled water to form an aqueous solution, and stirring at a speed of 100 rpm to 1000 rpm to mix the solution evenly to obtain an aqueous solution of the photothermal material;

[0036] Step 3, adding the photothermal material aqueous solution into the monomer aqueous solution to form an emulsion, and shearing for 1 to 60 minutes with a high-speed dispersing shear;

[0037] Step 4, preparing an aqueous ammonium persulfate...

Embodiment 1

[0050]Prepare monomer solution: Take 15g of methyl methacrylate, 12g of butyl acrylate, 0.6g of sodium lauryl sulfate and 0.6g of Triton X-100, dissolve in 60ml of distilled water, and stir magnetically at room temperature;

[0051] Prepare an aqueous solution of carbon nanotubes: add 1.7g of carbon nanotube powder and 1.5g of 3-(methacryloyloxy)propyltrimethoxysilane to 10ml of distilled water, and stir at 750rpm for 30 minutes until fully dissolved Finally, it is added to the monomer solution to form an emulsion, which is sheared by a high-speed shear for 5 minutes;

[0052] Preparation of ammonium persulfate solution: 0.12 g of ammonium persulfate was dissolved in 15 ml of distilled water;

[0053] Take a quarter of the emulsion and a quarter of the ammonium persulfate solution in a four-necked flask, and start pre-polymerization for 30 minutes at a water bath temperature of 80°C and a mechanical stirring of 400rpm;

[0054] After the remaining emulsion was sheared at high...

Embodiment 2

[0058] Prepare monomer solution: take 30g of methyl methacrylate, 20g of butyl acrylate, 1.5g of sodium lauryl sulfate and 1.8g of Triton X-100, dissolve in 100ml of distilled water, and stir magnetically at room temperature;

[0059] Prepare an aqueous solution of vanadium dioxide: 5g of vanadium dioxide powder and 2.5g of 3-(methacryloyloxy)propyltrimethoxysilane are added to 15ml of distilled water, and stirred at 1000rpm for 60 minutes, until fully dissolved , adding it to the monomer solution to form an emulsion, which is sheared by a high-speed shear for 15 minutes;

[0060] Preparation of ammonium persulfate solution: 0.5 g of ammonium persulfate was dissolved in 30 ml of distilled water;

[0061] Take one-third of the emulsion and one-third of the ammonium persulfate solution in a four-necked flask, and start pre-polymerization for 50 minutes under the conditions of a water bath temperature of 60°C and a mechanical stirring of 600rpm;

[0062] After the remaining emul...

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Abstract

The invention provides a preparation method of a photo-thermal shape memory functional material. The preparation method comprises the following steps: preparing a monomer aqueous solution; preparing aphoto-thermal material aqueous solution; adding the photo-thermal material aqueous solution into the monomer aqueous solution to form an emulsion, and shearing the emulsion by using a high-speed shearing machine; preparing an ammonium persulfate aqueous solution, adding a part of the ammonium persulfate aqueous solution and a part of the emulsion into a four-neck flask, and stirring the mixed liquid for prepolymerization; shearing the remaining emulsion by using a high-speed shearing machine, adding the remaining ammonium persulfate aqueous solution into the emulsion, dropwise adding the mixed solution into a four-neck flask at a constant speed, and stirring the mixed liquid for polymerization; and after the polymerization is finished, pouring the solution into a beaker, refrigerating thesolution at low temperature, pouring the solution into a mold, and drying the solution to obtain the photo-thermal shape memory functional material. The invention also provides a photo-thermal shapememory functional material and application thereof. The photo-thermal shape memory functional material has the characteristics of shape memory, photo-thermal response, intelligent cooling and the like, and is suitable for large-scale low-cost manufacturing.

Description

technical field [0001] The invention belongs to the field of shape memory functional materials, and in particular relates to a photothermal shape memory functional material, a preparation method and an application thereof. Background technique [0002] At present, my country's urban construction has entered a period of rapid development, and the energy-saving issues related to buildings have been paid more and more attention by governments at all levels and all walks of life in our country. According to the latest data, the total energy consumption of buildings in my country accounts for about 20% of the total energy consumption of the society, showing a trend of increasing year by year. As the main channel for heat exchange between buildings and the outside world, windows account for 50% of the heat exchange energy inside the building. Therefore, the key to building energy saving lies in building windows. [0003] Smart windows refer to a class of functional devices that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F230/08C08F2/44C08K3/22C08K3/04C08L33/12E06B9/28E06B9/386
CPCC08F220/14C08F2/44C08K3/041C08K3/22C08K3/04C08L43/04E06B9/28E06B9/386C08L2201/12C08K2201/011C08F220/1804C08F230/085
Inventor 张荣徐磊冯敏蒋希芝汪敏严旎娜夏礼如
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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