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Preparation method of moisture stimulus responsive type transparent cellulose membrane driver

A stimuli-responsive, cellulose film technology, which is applied in manufacturing tools, wood processing appliances, wood impregnation, etc., can solve the problems of non-renewable materials, poor interface bonding of double-layer composite structures, etc., and achieves simple preparation methods, good applicability, The effect of high light transmittance

Active Publication Date: 2019-05-24
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of non-renewable materials of existing humidity stimulus-responsive actuators and poor interfacial bonding of double-layer composite structures, and provides a method for preparing a humidity-stimuli-responsive transparent cellulose membrane actuator

Method used

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  • Preparation method of moisture stimulus responsive type transparent cellulose membrane driver
  • Preparation method of moisture stimulus responsive type transparent cellulose membrane driver
  • Preparation method of moisture stimulus responsive type transparent cellulose membrane driver

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specific Embodiment approach 1

[0030] Embodiment 1: The method for preparing a humidity stimulus-responsive transparent cellulose membrane driver in this embodiment includes the following steps:

[0031] 1. Weigh 0.1%-5% of nanoparticles, 0.1%-2% of surface modifier and the rest of toluene according to mass percentage, mix and stir for 72-76h, then wash with acetone, and centrifuge at 8000-9000rpm for 3 -5 times, and then dried at 80-85°C for 12-14h to obtain reagent A;

[0032] 2. Weigh 1%-50% hydrophobic polymer resin, 0.1%-1% reagent A and the rest of the solvent according to mass percentage, stir at room temperature for 0.1-0.2 hours after mixing, and ultrasonically for 0.5-1 hour. The functional reagent B is obtained;

[0033] 3. Soak the wood veneer with a string-cut surface in sodium hypochlorite, and place it at room temperature for 6-7 hours; then, remove the sodium hypochlorite, add new sodium hypochlorite to continue soaking for 6-7 hours, and repeatedly replace the sodium hypochlorite 5-10 time...

specific Embodiment approach 2

[0035] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the nanoparticles in step 1 are SiO 2 , Ag, Cu, CuO, TiO 2 , One or several mixtures of ZnO in any ratio. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0036] Embodiment 3: This embodiment is different from Embodiment 2 in that: the particle size of the nanoparticles is 10-500 nm. Others are the same as in the second embodiment.

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Abstract

The invention relates to a preparation method of a stimulus responsive intelligent material, in particular to a preparation method of a moisture stimulus responsive type transparent cellulose membranedriver, and is intended to solve the problem that the existing moisture stimulation responsive driver material is not recyclable and has poor interfacial bonding of double-layer composite structure.The preparation method comprises I, weighing nanoparticles, a surfactant and methylbenzene, stirring, washing, centrifuging, and drying to obtain a reagent A; II, weighing hydrophobic macromolecular resin, the reagent A and a solvent, mixing, stirring, and carrying out ultrasonic treatment to obtain a reagent B; III, soaking wood veneer in sodium hypochlorite, removing the sodium hypochlorite, adding new sodium hypochlorite for soaking, and changing sodium hypochlorite repeatedly; washing with deionized water; placing the wood veneer in a polytetramethylene membrane, drying between two glass sheets to obtain a transaprent cellulose membrane; IV, brushing the functional reagent B to one surface of the wood veneer to obtain the moisture stimulus responsive type transparent cellulose membranedriver. The moisture stimulus responsive type transparent cellulose membrane driver is applied to the field of environmental stimulus responsive materials.

Description

technical field [0001] The invention relates to a preparation method of a stimulus-responsive intelligent material. Background technique [0002] Smart materials can realize active responses by sensing changes in the external environment, such as thermochromic smart water cups and photochromic smart glasses. If smart materials can respond to mechanical motion stimuli by sensing changes in the external environment, they will have the nature of a driver, that is, they can achieve autonomous driving motion without artificial energy supply, which undoubtedly has the characteristics of "green and energy saving" and represents the future of material development. new trend. [0003] After hundreds of millions of years of evolution, many plants in nature have possessed the intelligent characteristics of active response and automatic energy saving. For example, as the humidity in the external environment changes, the pine cones will automatically open and close, the ice and snow fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/20B27K3/00B27K3/52
Inventor 董晓英李永峰
Owner SHANDONG AGRICULTURAL UNIVERSITY
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