Gel type ice and snow material with adjustable solidification temperature and transmittance and preparation method thereof

A technology of solidification temperature and light transmittance, applied in chemical instruments and methods, other chemical processes, etc., to achieve the effect of prolonging the life cycle and expanding application scenarios

Inactive Publication Date: 2020-05-15
BEIJING INSTITUTE OF TECHNOLOGYGY
15 Cites 10 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0004] However, none of the above technologies can realize the non-water separation and loss of water afte...
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Abstract

The invention relates to a gel type ice and snow material with adjustable solidification temperature and transmittance and a preparation method thereof, wherein the preparation method comprises the specific steps: firstly, taking an acrylamide polymerization monomer, a cross-linking agent, an initiator, a catalyst, a solidification temperature and transmittance regulator as raw materials to prepare an acrylamide ice and snow material; secondly, taking sodium alginate, a solubilizer, soluble divalent/trivalent metal ion salt, a crosslinking speed regulator, a plasticizer, a gelatinizing agent,a solidification temperature and a light transmittance regulator as raw materials, and carrying out ionic crosslinking to obtain the sodium alginate gel type ice and snow material. By blending the rawmaterial components, the solidification temperature of the gel type ice and snow material can be regulated and controlled within a wide range, and the synthesized material has the characteristics ofgood formability and easiness in processing.

Application Domain

Other chemical processes

Technology Topic

PlasticizerPolymer chemistry +7

Examples

  • Experimental program(4)

Example Embodiment

[0037] Example 1
[0038] (1) 3g of polymerization monomer acrylamide, 1.5g of N-isopropylacrylamide, 0.5g of N-tert-butylacrylamide, 0.1g of crosslinking agent N,N-methylenebisacrylamide, and thermal initiator 0.2g potassium persulfate, 0.001g tetramethylethylenediamine as a catalyst, 8g sodium chloride and 22g calcium chloride as modifiers of solidification temperature and light transmittance, dissolved in 100g water, fully stirred until completely dissolved, and then prepared by vacuum degassing The gel-type ice and snow material precursor solution is obtained.
[0039] (2) Inject the drive body solution described in step (1) into a container or mold, and cover the top of the container or mold with a glass sheet with surface hydrophobic treatment; heat to 70°C and react for 3 hours to completely solidify to obtain the solidification temperature And acrylamide gel type ice and snow material with adjustable transmittance.

Example Embodiment

[0040] Example 2
[0041] (1) 8g of polymerized monomer N-phenylacrylamide, 17g of diacetone acrylamide, 0.02g of crosslinking agent hydroxypropyl methacrylate, 0.01g of photoinitiator 2-ketoglutarate, and catalyst of tetramethylethyl Diamine 0.02g, coagulation temperature and light transmittance regulator 0.2g glycerin dissolved in 100g water, fully stirred until completely dissolved, vacuum defoaming treatment is performed to obtain a gel-type ice and snow material precursor solution.
[0042] (2) Inject the driver solution described in step (1) into a container or mold, and cover the top of the container or mold with a glass sheet with surface hydrophobic treatment; irradiate with ultraviolet light with a wavelength of 365 nm, and the irradiation time is 0.5 hours, It is completely cured to obtain an acrylamide gel-type ice and snow material with adjustable setting temperature and light transmittance.

Example Embodiment

[0043] Example 3
[0044] (1) According to the mass proportion, sodium alginate 1.0g, solubilizer soft white sugar 1.6g, sucrose 0.9g, soluble divalent metal ion salt calcium sulfate 0.35g, calcium chloride 0.15g, crosslinking speed regulator tetrasodium pyrophosphate 0.002g, plasticizer corn starch 0.2g, gel forming agent xanthan gum 0.2g, temperature and light transmittance regulators sodium chloride 0.23g, calcium chloride 0.06g fully mixed.
[0045] (2) Dissolve the coagulation temperature and transmittance regulator in 5 g of water to obtain a coagulation temperature regulation solution;
[0046] (3) Dissolve the mixed powder particles described in step (1) in the solidification temperature adjustment solution described in step (1), fully stir until completely dissolved, and perform vacuum degassing treatment to prepare a gel-type ice and snow material precursor solution;
[0047] (4) Inject the precursor solution described in step (3) into a container or mold, and cover the top of the container or mold with a glass sheet after surface hydrophobic treatment. After 5 minutes of curing, the solidification temperature and transmittance are adjustable. Sodium alginate gel type ice and snow material.

PUM

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Description & Claims & Application Information

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