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Crystalline snow material and preparation method

A crystal and quasi-crystal technology, applied in the field of crystalline snow materials and preparation, can solve the problems of loss of formability, difficulty in snow family and life, melting, etc., and achieve the effects of simple preparation process, convenient use and strong processability

Inactive Publication Date: 2020-05-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both artificial snow and natural snow have the disadvantages of melting into water after heating up, losing their formability and being unable to be stored for a long time
Therefore, although people are keen on the whiteness and moistness of snow, it is difficult to use it as a processing material in the manufacture of various products, which makes it difficult for snow to really enter people's families and lives.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Preparation of crystalline snow material precursor solution. According to the mass fraction, 5 g of polymerized monomer acrylamide, 0.03 g of crosslinking agent N, N-methylenebisacrylamide, 0.01 g of photoinitiator 2-ketoglutaric acid, and 0.001 g of catalyst tetramethylethylenediamine, Foaming agent sodium lauryl sulfate 0.03g, rosin soap foaming agent 1.2g, carbonate potassium carbonate 0.1g, aluminum salt aluminum sulfate 0.17g, foam stabilizer selected from carboxymethylcellulose 1g, polyvinyl alcohol 0.5g, dissolved in 100g water according to the proportion, fully stirred until completely dissolved to obtain the crystal snow material precursor solution;

[0045] (2) inject the precursor solution obtained in step (1) into the snowflake decoration mold, make it fill the entire container or mold, and cover the glass sheet above the container or mold, and irradiate it under ultraviolet light with a wavelength of 365nm for 1.0h, completely After solidification, acr...

Embodiment 2

[0047] (1) Preparation of crystalline snow material precursor solution. According to the mass fraction, polymerize monomer acrylamide 7g, N-isopropylacrylamide 18g, crosslinking agent diacetone acrylamide 0.03g, hydroxyethyl methacrylate 0.07g, thermal initiator ammonium persulfate 0.2g, catalyst four Methylethylenediamine 0.02g, foaming agent sodium lauryl sulfate 1.3g, fatty alcohol polyoxyethylene ether sodium sulfate 3.7g, carbonate sodium carbonate 5.2g, aluminum salt aluminum chloride 2.6g, foam stabilizer 0.02g of lauric acid and 0.05g of triethanolamine are dissolved in 100g of water according to the proportion, and fully stirred until completely dissolved to obtain a crystal snow material precursor solution;

[0048] (2) Inject the precursor solution obtained in step (1) into the toy castle mold to fill the entire container or mold, cover the container or mold with a glass sheet, heat at 70°C for 2.0h, and completely solidify to obtain propylene Amide crystalline sno...

Embodiment 3

[0050](1) According to the specific gravity, 1.0g of sodium alginate, 1.0g of solubilizer glucose, 1.5g of fructose, 0.5g of soluble divalent metal ion salt calcium sulfate, 0.2g of tetrasodium pyrophosphate as a crosslinking speed regulator, and 0.2g of plasticizer diatom Soil 0.001g, gelling agent xanthan gum 0.2g, foaming agent sodium lauryl sulfate 0.01g, carbonate sodium carbonate 0.52g, aluminum salt aluminum chloride 0.005g, foam stabilizer carboxymethyl cellulose 0.15 g Mix well.

[0051] (2) Dissolve the powder mixture obtained in step (1) in 2 g of water, stir well until it is completely dissolved, and perform vacuum degassing treatment to prepare a crystalline snow material precursor solution.

[0052] (3) Pour the above solution into a container or a mould, and cover the container or mould with a glass sheet after surface hydrophobic treatment, and solidify after 5 minutes to obtain a sodium alginate crystal snow material.

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PUM

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Abstract

The invention relates to a crystalline snow material and a preparation method thereof, wherein the preparation method specifically comprises the following steps: preparing an acrylamide crystalline snow material by adopting a polymerization monomer, a cross-linking agent, an initiator, a catalyst, a foaming agent, carbonate, aluminum salt and a foam stabilizer through a free radical polymerizationmethod; and preparing the sodium alginate crystalline snow material from sodium alginate, a solubilizer, soluble divalent / trivalent metal ion salt, a crosslinking speed regulator, a plasticizer, a gelatinizing agent, a foaming agent, carbonate, aluminum salt and a foam stabilizer through an ionic crosslinking method. The prepared crystalline snow material is a three-dimensional network-shaped cementing material formed by crosslinking a water-soluble high-molecular polymer through a physical or chemical method, can still lock moisture and keep the original shape structure after being heated and melted, and is convenient to store for a long time.

Description

technical field [0001] The invention relates to the field of preparation and processing of new materials, in particular to a crystalline snow material and a preparation method. Background technique [0002] Artificial snow is widely used in ski resorts, snow landscapes, stage landscaping, film and television shooting, snow environment simulation and other fields. At present, artificial snow is mainly prepared in two ways. One is to break the ice cubes into ice crystals of appropriate thickness and width; the other is to spray water into the cold atmosphere with high-pressure water guns to form ice crystals of appropriate size. However, in order to achieve the visual effect and functional effect of natural snow. However, both artificial snow and natural snow have the disadvantages of melting into water after heating up, losing their formability and being unable to be stored for a long time. Therefore, although people are keen on the whiteness and moistness of snow, it is di...

Claims

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Application Information

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IPC IPC(8): C08J9/30C08L33/26C08L5/04C08L5/00C08L1/28C08L3/02C08K3/26C08K3/16C08K7/26C08F220/56C08F222/38C08F220/54C09K3/24
CPCC08F220/56C08J9/0023C08J9/0061C08J9/0066C08J9/0095C08J9/30C08J2305/04C08J2333/26C08J2401/28C08J2403/02C08J2405/00C09K3/24C08F222/385C08F220/54
Inventor 张凯渐南南程杨洋
Owner BEIJING INSTITUTE OF TECHNOLOGYGY