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Antistatic self-recovery triple interpenetrating network silicon hydrogel and preparation method thereof

A technology of silicon hydrogel and interpenetrating network, which is applied in the field of antistatic self-recovery triple interpenetrating network silicon hydrogel and its preparation, can solve the problem of self-recovery performance and antistatic performance of silicon-containing polymers, which are easy to accumulate static electricity and prepare The process is complex and cannot have mechanical and mechanical properties at the same time, so as to achieve the effects of excellent self-recovery performance, excellent anti-fatigue performance, and excellent antistatic performance

Active Publication Date: 2019-12-20
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an antistatic self-recovery triple interpenetrating network silicon hydrogel, which solves the problem that the existing silicon hydrogel cannot have good mechanical and mechanical properties, fatigue resistance, Self-recovery performance and antistatic performance, as well as the problem of easy accumulation of static electricity in silicon-containing polymers
[0006] The present invention also provides a preparation method of antistatic self-restoring triple interpenetrating network silicon hydrogel, which solves the problem of complicated preparation process in the existing method

Method used

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  • Antistatic self-recovery triple interpenetrating network silicon hydrogel and preparation method thereof
  • Antistatic self-recovery triple interpenetrating network silicon hydrogel and preparation method thereof
  • Antistatic self-recovery triple interpenetrating network silicon hydrogel and preparation method thereof

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Embodiment 1

[0041] A preparation method of antistatic self-restoring triple interpenetrating network silicon hydrogel, comprising the following steps:

[0042] 1) Add 24mL deionized water to a 100mL beaker, add 3.75g acrylamide AM, 0.47g acrylic acid AA, 2g cetyltrimethylammonium bromide and 0.31g octadecyl methacrylate, at a certain temperature Stir to make it dissolve, and then add 2mL of ethanol, 1g of hexamethyldisiloxane, 3.25g of ethyl orthosilicate and 3mL of concentrated hydrochloric acid in sequence after stirring evenly, and continue stirring. Dissolve 20 mg of potassium persulfate in 1 mL of deionized water and add it to the above solution, then transfer the above prepared solution to a self-made glass mold, and polymerize at 70 °C for 24 hours to obtain a double network silicone hydrogel HPAMAA -Si 3MQ Dumbbell-shaped spline (3 represents the amount of hydrochloric acid added, M and Q refer to hexamethyldisiloxane and tetraethylorthosilicate, respectively).

[0043] 2) Take ...

Embodiment 2

[0050] A preparation method of antistatic self-restoring triple interpenetrating network silicon hydrogel, comprising the following steps:

[0051] 1) Add 24mL deionized water to a 100mL beaker, add 3.75g acrylamide AM, 0.47g acrylic acid AA, 2g cetyltrimethylammonium bromide and 0.31g octadecyl methacrylate, at a certain temperature Stir to dissolve. After stirring evenly, add 2 mL of ethanol, 1 g of hexamethyldisiloxane, 3.25 g of ethyl orthosilicate and 3 mL of concentrated hydrochloric acid in sequence, and continue stirring. Dissolve 20 mg of potassium persulfate in 1 mL of deionized water and add to the above solution. Transfer the above-prepared solution to a self-made glass mold, and polymerize at 70°C for 24 hours to obtain a double-network silicon hydrogel HPAMAA-Si 3MQ Dumbbell-shaped spline (3 represents the amount of hydrochloric acid added, M and Q refer to hexamethyldisiloxane and tetraethylorthosilicate, respectively).

[0052] 2) Take 4 mL of 50% phytic aci...

Embodiment 3

[0061] A preparation method of antistatic self-restoring triple interpenetrating network silicon hydrogel, comprising the following steps:

[0062] 1) Add 24mL deionized water to a 100mL beaker, add 3.75g acrylamide AM, 0.47g acrylic acid AA, 2g cetyltrimethylammonium bromide and 0.31g octadecyl methacrylate, at a certain temperature Stir to dissolve. After stirring evenly, add 2 mL of ethanol, 1 g of hexamethyldisiloxane, 3.25 g of ethyl orthosilicate and 3 mL of concentrated hydrochloric acid in sequence, and continue stirring. Dissolve 20 mg of potassium persulfate in 1 mL of deionized water and add to the above solution. Transfer the above-prepared solution to a self-made glass mold and polymerize at 70°C for 24 hours to obtain a hydrophobic silicon hydrogel HPAMAA-Si 3MQ Dumbbell-shaped spline (3 represents the amount of hydrochloric acid added, M and Q refer to hexamethyldisiloxane and tetraethylorthosilicate, respectively).

[0063] 2) Take 4 mL of 50% phytic acid aq...

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Abstract

The invention discloses an antistatic self-recovery triple interpenetrating network silicon hydrogel and a preparation method thereof. The preparation method comprises: carrying out addition polymerization on an alkene-based monomer to form a carbon chain polymer, and carrying out hydrophobic association cross-linking on the carbon chain polymer to form a first macromolecular network; carrying outcondensation polymerization on a silicon monomer to form a silicon-containing polymer, and forming a second polymer network from the silicon-containing polymer through hydrogen bond action; carryingout oxidation polymerization on an aniline monomer to form polyaniline, and forming a third polymer network from the polyaniline through hydrogen bond or hydrogen bond / covalent cross-linking; and interpenetrating the first polymer network, the second polymer network and the third polymer network. According to the invention, the obtained silicon hydrogel has advantages of excellent toughness, rapidself-recovery performance and antistatic performance; and the preparation method has characteristics of simple preparation process, simple and easily available raw materials, low preparation cost andgood application prospects, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of hydrogel composite modification, and in particular relates to an antistatic self-restoring triple interpenetrating network silicon hydrogel and a preparation method thereof. Background technique [0002] Hydrogels have many similarities with biological soft tissues, so they have broad application prospects in life sciences, food sciences, drug controlled release, biosensors, and tissue engineering. However, the traditional hydrogel has poor mechanical properties, its tensile strength is only about 10 kPa, and its fracture energy is only 170 kJ / m 3 Left and right, microscopic cracks will be damaged by external force extrusion or liquid erosion during use, and these microscopic cracks will gradually expand and propagate to destroy the integrity of the hydrogel, and this damage is usually irreversible and difficult to repair. This severely limits its practical application. [0003] In recent years, researc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/075C08J3/24C08L33/26C08L79/02C08K5/5419C08K5/5415
CPCC08J3/075C08J3/243C08J2333/26C08J2479/02C08K5/5419C08K5/5415
Inventor 杨倩玉高晨张雪梅赵星宇郑晓翼邹智挥钟家春夏益青盛玉萍袁力曾春燕白兰涵附怡清杨婷
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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