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Preparation method of high-porosity dispersed shape memory foam material

A memory foam, dispersed technology, applied in the field of foam materials, can solve problems such as uneven pore size, achieve uniform and stable pores, excellent structural pore uniformity, and improve the foam height.

Pending Publication Date: 2020-10-09
韦杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The technical problem to be solved by the present invention: Aiming at the problem of non-uniform pore size of existing shape memory foam materials, a preparation method of high pore dispersed shape memory foam materials is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In parts by weight, weigh 45 parts of deionized water, 10 parts of sodium hydroxide solution with a concentration of 0.5mol / L and 1 part of sodium chloride in a three-necked flask, stir and mix to obtain a base liquid; 45 parts of deionized water, 3 parts of sodium lauryl sulfate, 1 part of magnesium chloride hexahydrate and 1 part of sodium nitrite were respectively weighed and placed in a Erlenmeyer flask, stirred and mixed to obtain a mixed solution, with a volume ratio of 1:5, Add the matrix solution dropwise to the mixed solution, and control the dropping rate at 2 drops / s. After the dropwise addition is completed, stir and mix and adjust the pH to 8.5 with a mass fraction of 5% sodium hydroxide solution, and then ultrasonically disperse at 200W for 10 minutes. After the ultrasonic dispersion is completed, stir and mix to obtain a dispersed aqueous phase liquid; then weigh 45 parts of acrylonitrile, 10 parts of methacrylic acid, 6 parts of methyl methacrylate, 10 pa...

Embodiment 2

[0036] In parts by weight, weigh 47 parts of deionized water, 12 parts of sodium hydroxide solution with a concentration of 0.5mol / L and 1 part of sodium chloride in a three-necked flask, stir and mix to obtain a base liquid; Weighing 47 parts of deionized water, 4 parts of sodium lauryl sulfate, 1 part of magnesium chloride hexahydrate and 1 part of sodium nitrite were placed in the Erlenmeyer flask, stirred and mixed to obtain a mixed solution, with a volume ratio of 1:5, Add the matrix liquid dropwise to the mixed solution, and control the dropping rate at 2 drops / s. After the dropwise addition is completed, stir and mix and adjust the pH to 8.5 with a mass fraction of 5% sodium hydroxide solution, and then ultrasonically disperse at 250W for 12 minutes. After the ultrasonic dispersion is completed, stir and mix to obtain a dispersed aqueous phase liquid; then weigh 47 parts of acrylonitrile, 12 parts of methacrylic acid, 7 parts of methyl methacrylate, 12 parts of N,N-dimet...

Embodiment 3

[0038] In parts by weight, weigh 50 parts of deionized water, 15 parts of sodium hydroxide solution with a concentration of 0.5mol / L and 2 parts of sodium chloride in a three-necked flask, stir and mix to obtain a base liquid; Weighing 50 parts of deionized water, 5 parts of sodium lauryl sulfate, 2 parts of magnesium chloride hexahydrate and 2 parts of sodium nitrite were placed in the Erlenmeyer flask, stirred and mixed to obtain a mixed solution, with a volume ratio of 1:5, Add the matrix solution dropwise to the mixed solution, and control the dropping rate at 2 drops / s. After the dropwise addition is completed, stir and mix and adjust the pH to 8.5 with a mass fraction of 5% sodium hydroxide solution, and then ultrasonically disperse at 300W for 15 minutes. After the ultrasonic dispersion is completed, stir and mix to obtain a dispersed aqueous phase liquid; then weigh 50 parts of acrylonitrile, 15 parts of methacrylic acid, 8 parts of methyl methacrylate, and 15 parts of ...

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PUM

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Abstract

The invention relates to a preparation method of a high-porosity dispersed shape memory foam material, and belongs to the technical field of foam materials. The invention discloses a technical scheme.According to the preparation method, lauroyl chloride is used for grafting modification of skin collagen to introduce a hydrophobic group so as to enhance the surface activity and increase the foaming height of the skin collagen, a collagen-coated modified material is prepared, and the reaction efficiency of lauroyl chloride and collagen is improved, so that the surface activity of the solution is gradually increased, and the foam height is gradually increased, due to the fact that the concentration of the collagen solution is increased, the foam stabilizing performance of the collagen solution is improved, and the half-life period of the collagen solution is prolonged, the pore foaming performance of the material can be effectively stabilized through the technical scheme of coating modification, the uniformity of the pore diameter of an existing foam material is further improved, the foam pore diameter and foam pore distribution are well controlled, and the material has excellent structural performance.

Description

technical field [0001] The invention relates to a preparation method of a high-porosity dispersed shape memory foam material, belonging to the technical field of foam materials. Background technique [0002] Among the new smart materials, shape memory polymer (SMP) has unique and excellent properties. Compared with other materials with shape memory function, SMP has light weight, wide range of shape memory recovery temperature, large recoverable Corrosion, easy processing and transportation and low price. Since the 1990s, SMP has developed rapidly in the fields of intelligent structural materials, foldable structures and new biomedical materials. [0003] Shape memory polymer foam has the characteristics of low density, high compression rate and shape memory effect of shape memory polymer, which makes it valuable for research in many aspects. According to the existing research reports, there have been some experimental results in biomedical and aerospace applications, show...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/32C08J9/14C08L67/04C08L83/04C08F220/46C08F220/06C08F220/14C08H1/00
CPCC08F220/46C08H1/00C08J9/0061C08J9/145C08J9/32C08J2203/142C08J2203/22C08J2367/04C08J2483/04C08F220/06C08F220/14
Inventor 韦杰
Owner 韦杰