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Preparation method of oil/water double-layer gel with high interfacial effect and product and application of preparation method

A double-layer gel and interface technology, which is applied in the direction of manufacturing tools, chucks, manipulators, etc., can solve the problems of complex preparation process, low universality, and restrictions on the industrial application of oil/water double-layer gel, and achieve the goal of preparation method Simple, high universality, high application value and practical operability

Active Publication Date: 2019-11-12
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Although the above solution can better solve the defect of weak oil-water phase interface of oil / water bilayer gel, its preparation process is more complicated, the conditions are harsher, and the universality is low, which limits the oil / water bilayer gel. industrial application of

Method used

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  • Preparation method of oil/water double-layer gel with high interfacial effect and product and application of preparation method
  • Preparation method of oil/water double-layer gel with high interfacial effect and product and application of preparation method
  • Preparation method of oil/water double-layer gel with high interfacial effect and product and application of preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) 0.4g zwitterion 3-(1-(4-vinylbenzyl)-1H-imidazol-3-ium)propane-1-sulfonate (VBIPS), 0.003g photoinitiator (2-hydroxy -4'-(2-hydroxyethoxy)-2-methylpropiophenone) and 0.006g N,N-methylenebisacrylamide (MBAA) were dissolved in 0.32g deionized water, and nitrogen was blown to remove oxygen to obtain Aqueous phase reaction solution;

[0042] (2) 9g butyl acrylate (BA), 0.04g ethylene glycol dimethacrylate (EGDMA), 0.025g photoinitiator 2,2-diethoxyacetophenone, 0.3g KH570 modified nanometer Silicon oxide is mixed evenly to obtain an oil phase reaction liquid;

[0043] (3) First inject the water phase reaction solution prepared in step (1) into the mold, then inject the oil phase reaction solution prepared in step (2) into the mold with a syringe, and the mold consists of two pieces of 5 × 5cm quartz Glass is sandwiched with a silica gel sheet with a thickness of 1 mm, and it is left to stand for 12 hours. After the KH570-modified nano-silica is uniformly distributed a...

Embodiment 2

[0052] (1) Dissolve 0.4g of zwitterionic VBIPS, 0.006g of N,N-methylenebisacrylamide (MBAA) and 0.002g of ammonium persulfate (APS) in 0.32g of deionized water, and blow nitrogen to remove oxygen to obtain the aqueous phase The reaction solution;

[0053] (2) 6g butyl acrylate (BA), 0.036g ethylene glycol dimethacrylate (EGDMA), 0.108g azobisisobutyronitrile (AIBN) and 0.3g KH570 modified nano-silica were mixed evenly, Obtain an oil phase reaction solution;

[0054] (3) First inject the water phase reaction solution prepared in step (1) into the mold, then inject the oil phase reaction solution prepared in step (2) into the mold with a syringe, and the mold consists of two pieces of 5 × 5cm quartz The glass is sandwiched by a silica gel sheet with a thickness of 1mm, and it is left to stand for 12 hours. After the nano-silica modified by KH570 is evenly distributed at the interface of the oil-water phase, the temperature is raised to 60°C for 2 hours, and the polyVBIPS-polyBA...

Embodiment 3

[0056] (1) 0.4g zwitterion 3-(1-(4-vinylbenzyl)-1H-imidazol-3-ium)propane-1-sulfonate (VBIPS), 0.003g photoinitiator 2-hydroxy- 4'-(2-hydroxyethoxy)-2-methylpropiophenone and 0.006g N,N-methylenebisacrylamide (MBAA) were dissolved in 0.32g deionized water, and the water phase was obtained after blowing nitrogen to remove oxygen The reaction solution;

[0057] (2) 9g butyl acrylate (BA), 0.04g ethylene glycol dimethacrylate (EGDMA), 0.025g photoinitiator (2,2-diethoxyacetophenone) and 0.3g KH570 modified Nano-silica is mixed evenly to obtain an oil phase reaction liquid;

[0058] (3) First inject the water phase reaction solution prepared in step (1) into the mold, then inject the oil phase reaction solution prepared in step (2) into the mold with a syringe, and the mold consists of two pieces of 5 × 5cm quartz It is composed of a silica gel sheet with a thickness of 1 mm between glass, and it is left to stand for 12 hours. After the nano-silica modified by KH590 is evenly di...

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Abstract

The invention discloses oil / water double-layer gel with a high interfacial effect and a preparation method of the oil / water double-layer gel. The preparation method comprises the steps that (1) a water-soluble polymerizable monomer, an initiator I and a crosslinking agent I are dissolved into water to obtain a water phase reaction solution; (2) an oil-soluble polymerizable monomer, an initiator II, micro-nano particles modified by a silane coupling agent and a crosslinking agent are mixed to obtain an oil phase reaction solution; and (3) the water phase reaction solution and the oil phase reaction solution are sequentially injected into a mold, and statically placed for 2-24 h to obtain the oil / water double-layer gel. The invention further discloses application of the oil / water double-layer gel to the preparation of intelligent actuators and petroleum / natural gas pipelines. According to the oil / water double-layer gel, a 'one-pot method' is adopted to prepare the oil / water double-layergel with the high interfacial effect and high mechanical strength, multiple stimuli responsive properties can further be obtained by regulating the kinds of the water-soluble polymerizable monomer andthe oil-soluble polymerizable monomer, and the oil / water double-layer gel can be used for designing multiple stimuli responsive soft actuators and sensing elements.

Description

technical field [0001] The invention belongs to the technical field of polymer gel, and in particular relates to a preparation method and application of an oil / water double-layer gel with strong interfacial interaction. Background technique [0002] Stimuli-responsive hydrogels exhibit special shape or volume changes in response to external environmental changes (such as temperature, pH, light, electric field, humidity, and ions, etc.). Among them, stimuli-responsive hydrogels that can achieve bending deformation have great application prospects in the fields of intelligent actuators, sensors, and tissue engineering. There is a difference in swelling / shrinkage between the upper and lower layers of the hydrogel, thus exhibiting the overall bending deformation of the hydrogel. [0003] However, the low modulus of hydrogels makes the bilayer structure more limited in terms of deformation actuation (mainly reflected in mechanical properties). Combining mutually incompatible oi...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F222/14C08F226/06C08F222/38C08F220/56C08F226/10C08F220/54C08F220/58C08F251/00C08F2/44C08K9/06C08K3/36C08J3/075C08L33/08C08L39/04C08L33/26C08L39/06C08L33/24C08L51/02B25J15/12
CPCB25J15/12C08F2/44C08F2/48C08F220/18C08F220/54C08F220/56C08F220/58C08F226/06C08F226/10C08F251/00C08J3/075C08J2333/08C08J2333/24C08J2433/26C08J2439/04C08J2439/06C08J2451/02C08K3/36C08K9/06C08K2201/011C08F222/385
Inventor 杨晋涛何晓敏肖圣威
Owner ZHEJIANG UNIV OF TECH
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