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Preparation method of polyvinylidene fluoride micrometer bulb tube

A technology of polyvinylidene fluoride and micron bulbs, applied in nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problems of high technical difficulty, high equipment requirements, high cost, etc., and achieve cheap and easy-to-obtain raw materials and easy operation Ease of operation, good high temperature resistance effect

Active Publication Date: 2015-07-08
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These micron raw materials are concentrated in the field of inorganic microns, which are costly, require high equipment, and are technically difficult

Method used

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  • Preparation method of polyvinylidene fluoride micrometer bulb tube

Examples

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Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of a polyvinylidene fluoride micron tube, comprising the following steps:

[0016] 1) First, heat the mixture of 70% polyvinylidene fluoride (mass percentage) and polybutylacrylate (mass percentage) 30% to 195 ° C for 10 minutes to eliminate the heat history, and then the mixed melt is rapidly heated at a rate of 50 ° C / min Cool down to 170°C;

[0017] 2) Utilize a polymethylsiloxane plate to apply 10 4 Pa pressure applies shear stress to the melt, and it stands at 170°C for 15 days to crystallize polyvinylidene fluoride;

[0018] 3) Soak the fully crystallized blend in chloroform solution to etch away the polyacrylate component. After soaking for three days, only polyvinylidene fluoride crystals remain in the blend. Take out the polyvinylidene fluoride crystals and dry them, and scan them with a scanning electron microscope. The test can obtain polyvinylidene fluoride micron tubes.

[0019] The average diameter of the micron tube is 0.5 μm.

Embodiment 2

[0021] A preparation method of a polyvinylidene fluoride micron tube, comprising the following steps:

[0022] 1) First, heat the mixture of 50% polyvinylidene fluoride (mass percentage) and polybutylacrylate (mass percentage) 50% to 200 ° C for 10 minutes to eliminate the heat history, and then rapidly mix the melt at a rate of 50 ° C / min Cool down to 170°C;

[0023] 2) Utilize a polymethylsiloxane plate to apply 10 5 Pa pressure applies shear stress to the melt, and it stands at 170°C for 15 days to crystallize polyvinylidene fluoride;

[0024] 3) Soak the fully crystallized blend in chloroform solution to etch away the polyacrylate component. After soaking for three days, only polyvinylidene fluoride crystals remain in the blend. Take out the polyvinylidene fluoride crystals and dry them, and scan them with a scanning electron microscope. Detection can obtain polyvinylidene fluoride microtubes.

[0025] The average diameter of the microsphere tube is 1 μm.

Embodiment 3

[0027] A preparation method of a polyvinylidene fluoride micron tube, comprising the following steps:

[0028] 1) First, heat the mixture of 30% polyvinylidene fluoride (mass percentage) and polybutylacrylate (mass percentage) 70% to 205 ° C for 10 minutes to eliminate the heat history, and then rapidly mix the melt at a rate of 50 ° C / min Cool down to 170°C;

[0029] 2) Utilize a polymethylsiloxane plate to apply 10 5 Pa pressure applies shear stress to the melt, and it stands at 170°C for 15 days to crystallize polyvinylidene fluoride;

[0030] 3) Soak the fully crystallized blend in chloroform solution to etch away the polyacrylate component. After soaking for three days, only polyvinylidene fluoride crystals remain in the blend. Take out the polyvinylidene fluoride crystals and dry them, and scan them with a scanning electron microscope. The test can obtain polyvinylidene fluoride micron tubes.

[0031] The average diameter of the micron tube is 2.5 μm.

[0032] see ...

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Abstract

A preparation method of polyvinylidene fluoride micron tubes, including the following steps: 1) firstly heat the mixture of polyvinylidene fluoride and polybutyl acrylate, keep it warm to eliminate the heat history, and then rapidly cool down the mixed melt to 170°C ; 2) Use a polymethylsiloxane plate to apply a pressure of 104 to 105 Pa to apply a shear stress to the melt, and let it stand to crystallize polyvinylidene fluoride; 3) soak the fully crystallized blend in a chloroform solution to etch away the polyvinylidene fluoride. Acrylic ester component, after soaking for three days, only polyvinylidene fluoride crystals remain in the blend, the polyvinylidene fluoride crystals are taken out, dried, and detected by a scanning electron microscope to obtain polyvinylidene fluoride microsphere tubes; the process of the invention is simple and easy , low cost, and the obtained microtubes have high contact surface area, microtube wires, micron adsorbents, micron deodorants, etc., and are expected to be applied in microelectronics, adsorption, and physical catalysis.

Description

technical field [0001] The invention belongs to the technical field of preparation of polyvinylidene fluoride micron tubes, and in particular relates to a preparation method of polyvinylidene fluoride micron tubes. Background technique [0002] As a kind of micron material with special structure, microtube has its special performance and application. In 1991, Japanese NEC electron microscope expert Iijima discovered carbon microtubes for the first time. Since then, the research on microtubes of various materials has been the frontier and hotspot in the field of new materials in the world, and has made remarkable achievements. People in the scientific community predict that polymer microtubes have attractive application prospects in the fields of microelectronics, medicine, adsorption, and physical catalysis because of their unique structure and excellent electrical, magnetic, optical, and adsorption properties. and great potential application value. [0003] In the prepara...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/16C08J3/12C08J5/00B82B3/00B82Y40/00
Inventor 王海军冯会平赵庭山王学川
Owner SHAANXI UNIV OF SCI & TECH
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