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Preparation method and application of universal double-layer hydrogel driver

A hydrogel driver, a universal technology, applied in the field of preparation of universal double-layer hydrogel driver, can solve the problems of poor universality and achieve the effect of expanding the scope of use

Pending Publication Date: 2022-03-11
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, researchers have studied a variety of heterogeneous structures such as double-layer structure, gradient structure, directional structure, pattern structure and other structures, which have excellent driving performance and good mechanical properties, but the universality is relatively poor

Method used

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  • Preparation method and application of universal double-layer hydrogel driver
  • Preparation method and application of universal double-layer hydrogel driver
  • Preparation method and application of universal double-layer hydrogel driver

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Step (1), preparation of hydrogel pre-polymerization solution: add 0.0762g XLG type synthetic magnesium lithium silicate to 10mL deionized water and magnetically stir for 4h until completely dispersed to obtain a suspension, meanwhile add 0.226g 1-hydroxycyclohexyl Add phenyl ketone to 10mL of methanol to prepare an initiator solution, then add 1.13g of monomeric N-isopropylacrylamide and 0.1mL of the initiator solution to the suspension in sequence, stir for 2 hours at room temperature in the dark, and finally pour into the solution Bubble high-purity nitrogen gas to remove the dissolved oxygen contained in the solution to obtain a transparent (N-isopropylacrylamide)-clay hydrogel prepolymer solution;

[0030] Step (2), the preparation of mold: as figure 1 As shown, the dust-free paper with a size of 40mm×10mm and a surface stripe of 90° (the angle between the stripe and the long side) and a silicone rubber gasket with a hollowed out area of ​​40mm×10mm were placed on ...

Embodiment 2

[0034] Step (1), preparation of hydrogel prepolymerization solution: add 0.2285g XLG type synthetic magnesium lithium silicate to 10mL deionized water and magnetically stir for 4h until completely dispersed to obtain a suspension, and at the same time add 0.226g 1-hydroxycyclohexyl Add phenyl ketone to 10mL of methanol to prepare an initiator solution, then add 1.13g of monomeric N-isopropylacrylamide and 0.1mL of the initiator solution to the suspension in sequence, stir for 2 hours at room temperature in the dark, and finally pour into the solution Bubble high-purity nitrogen gas to remove the dissolved oxygen contained in the solution to obtain a transparent (N-isopropylacrylamide)-clay hydrogel prepolymer solution;

[0035] Step (2), the preparation of mold: as figure 1 As shown, the dust-free paper with a size of 40mm×10mm and a surface stripe of 90° (the angle between the stripe and the long side) and a silicone rubber gasket with a hollowed out area of ​​40mm×10mm were ...

Embodiment 3

[0039] Step (1), preparation of hydrogel pre-polymerization solution: add 0.3808g XLG type synthetic magnesium lithium silicate to 10mL deionized water and magnetically stir for 4h until completely dispersed to obtain a suspension, and at the same time add 0.226g 1-hydroxycyclohexyl Add phenyl ketone to 10mL of methanol to prepare an initiator solution, then add 1.13g of monomeric N-isopropylacrylamide and 0.1mL of the initiator solution to the suspension in sequence, stir for 2 hours at room temperature in the dark, and finally pour into the solution Bubble high-purity nitrogen gas to remove the dissolved oxygen contained in the solution to obtain a transparent (N-isopropylacrylamide)-clay hydrogel prepolymer solution;

[0040] Step (2), the preparation of mold: as figure 1 As shown, the dust-free paper with a size of 40mm×10mm and a surface stripe of 90° (the angle between the stripe and the long side) and a silicone rubber gasket with a hollowed out area of ​​40mm×10mm were...

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Abstract

The invention provides a preparation method of a universal double-layer hydrogel driver, the hydrogel driver comprises a flexible substrate with a stripe structure and intelligent hydrogel, and the preparation method belongs to the field of flexible intelligent driving. The preparation method comprises the following steps: (1) uniformly mixing a monomer, a cross-linking agent, an initiator and a solvent according to a certain proportion to prepare a hydrogel pre-polymerization solution; (2) sequentially placing a substrate with a stripe structure and a silicon rubber gasket with a certain size on a transparent glass plate, and sealing by using another transparent glass plate to manufacture a mold; and (3) injecting the hydrogel prepolymerization liquid obtained in the step (1) into the mold in the step (2), and performing in-situ free radical polymerization reaction under the irradiation of ultraviolet light to obtain the double-layer hydrogel driver. The double-layer hydrogel driver provided by the invention has good response bending performance and mechanical performance, the preparation method is simple to operate, the preparation is rapid, the cost is low, and the double-layer hydrogel driver has general applicability.

Description

technical field [0001] The invention belongs to the field of flexible intelligent drives, and in particular relates to a preparation method of a universal double-layer hydrogel drive. Background technique [0002] Hydrogel is a soft material formed by swelling a hydrophilic polymer cross-linked network with water. Due to the presence of a large number of water molecules as the dispersed phase, the hydrogel has the characteristics of "soft" and "wet". As one of the most important smart materials, polymer hydrogel actuators can convert various external stimuli (such as heat, pH, light, chemicals, electricity) into controllable and reversible shape transformations. Furthermore, compared to other polymer actuators such as liquid crystal actuators, hydrogel actuators are soft and wet materials, like living organisms. Therefore, they have drawn great attention and shown promising applications in soft robotics, artificial muscles, valves, etc. [0003] Hydrogel actuators can be ...

Claims

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Application Information

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IPC IPC(8): C08J3/075C08L33/24C08K3/34C08F120/54C08F220/56C08F220/58C08F222/38B25J15/00C08L33/26
CPCC08J3/075C08F120/54C08F220/56B25J15/0023C08J2333/24C08K3/346C08J2333/26C08F220/585C08F222/385
Inventor 刘爱萍许为中樊转转苑苗发曹宁晨
Owner ZHEJIANG SCI-TECH UNIV
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