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Fluorescent nano-fiber membrane and preparation method thereof

A technology of fluorescent nanofibers and fluorescent polymers, applied in non-woven fabrics, textiles and papermaking, etc., can solve problems such as low content of luminescent groups, difficult processing, difficulties in preparation of fluorescent nanofiber membranes and performance optimization, and achieve the goal of preparation process The effect of controllable process and simple method

Inactive Publication Date: 2017-02-22
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the above-mentioned light-emitting polymers are polymers with conjugated main chains. The main chain polymerization is easy to form a large conjugated area, and its solubility and melting properties are reduced, making it difficult to process; and introducing light-emitting groups into polymers When the end or the middle of the polymer chain is introduced, only the end group emits light, and the molecular weight will not be very large; but if the molecular weight is large, the content of the light-emitting group in the polymer is low, and the fluorescence is very weak
This brings difficulties to the preparation and performance optimization of fluorescent nanofiber membranes.

Method used

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  • Fluorescent nano-fiber membrane and preparation method thereof
  • Fluorescent nano-fiber membrane and preparation method thereof
  • Fluorescent nano-fiber membrane and preparation method thereof

Examples

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Embodiment 1

[0024] A fluorescent nanofiber film, comprising rhodamine B modified acrylic resin, the mass ratio range between rhodamine B and acrylic resin in the rhodamine B modified acrylic resin is 1:100, and its preparation method for:

[0025] (1) Rhodamine B and acrylic acid monomers are used for emulsion polymerization to obtain fluorescent polymer latex based on Rhodamine B modified acrylic resin:

[0026] Rhodamine B is mixed with acrylic acid monomer in a mass ratio of 1:100, and the acrylic monomer is composed of 35 wt% methyl methacrylate, 60 wt% isooctyl acrylate and 5 wt% methacrylic acid to obtain solution A, Simultaneously with respect to the emulsifier sodium dodecylbenzene sulfonate of solution A quality 1wt% and with respect to solution A quality 1wt% initiator ammonium persulfate is dissolved in the deionized water with the quality of solution A, obtains solution B, Stir and mix evenly; pour solution B into the reaction flask, heat up to 80°C at a speed of 50 rpm, add ...

Embodiment 2

[0032] A fluorescent nanofiber film, comprising rhodamine B modified acrylic resin, the mass ratio between rhodamine B and acrylic resin in the rhodamine B modified acrylic resin is 1:400, and its preparation method for:

[0033] (1) Rhodamine B and acrylic acid monomers are used for emulsion polymerization to obtain fluorescent polymer latex based on Rhodamine B modified acrylic resin:

[0034] Rhodamine B was mixed with acrylic acid monomer in a mass ratio of 1:400, said acrylic monomer was composed of 70 wt% methyl methacrylate, 29 wt% isooctyl acrylate and 1 wt% methacrylic acid to obtain solution A, At the same time, the emulsifier sodium dodecylbenzenesulfonate relative to the solution A quality 2wt% and the initiator ammonium persulfate relative to the solution A quality 0.8wt% are dissolved in deionized water equal to the solution A quality to obtain the solution B , stir and mix evenly; pour solution B into the reaction flask, heat up to 70°C at a speed of 80 rpm, ad...

Embodiment 3

[0039] A fluorescent nanofiber film, comprising rhodamine B modified acrylic resin, the mass ratio range between rhodamine B and acrylic resin in the rhodamine B modified acrylic resin is 1:600, and its preparation method for:

[0040] (1) Rhodamine B and acrylic acid monomers are used for emulsion polymerization to obtain fluorescent polymer latex based on Rhodamine B modified acrylic resin:

[0041] Rhodamine B was mixed with acrylic acid monomer in a mass ratio of 1:600, and the acrylic monomer was composed of 69 wt% methyl methacrylate, 25 wt% isooctyl acrylate and 6 wt% methacrylic acid to obtain solution A, At the same time, the emulsifier sodium dodecylbenzene sulfonate relative to the solution A quality 3wt% and the initiator ammonium persulfate relative to the solution A quality 0.5wt% are dissolved in deionized water with the same quality as the solution A to obtain the solution B , stir and mix evenly; pour solution B into the reaction flask, heat up to 60°C at a s...

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Abstract

The invention provides a fluorescent nano-fiber membrane and a preparation method thereof. The fluorescent nano-fiber membrane is characterized by comprising rhodamine B modified acrylic resin. The preparation method of the fluorescent nano-fiber membrane comprises the steps of mixing rhodamine B and acrylic acid monomers according to a mass ratio of 1:100 to 1:1000, obtaining rhodamine B modified acrylic resin based fluorescent polymer emulsion through an emulsion polymerization method, obtaining the rhodamine B modified acrylic resin through demulsifying, precipitating, washing and drying, and obtaining the fluorescent nano-fiber membrane through electrostatic spinning. The aggregation-induced quenching effect of rhodamine B fluorescent molecules under a solid state can be effectively inhibited by utilizing the dispersion effect of the acrylic based emulsion, so that the prepared nano-fiber membrane can emit strong fluorescence.

Description

technical field [0001] The invention relates to a fluorescent nanofiber film based on rhodamine B modified acrylic resin and a preparation method thereof. Background technique [0002] The nanofibrous membrane prepared by the electrospinning process has the properties of being porous and having a large specific surface area. Utilizing this characteristic, high-sensitivity nano-sensing materials can be fabricated. Its principle is to use the physical or chemical reaction between the target material and the sensing material, convert the reaction result into an electrical signal output, and obtain the quantitative data of the detection material. Among them, the more important one is the application research of the application as a light sensor. Ying Wang, Yu Lei et al. prepared pyrene / polystyrene composite nanofiber membranes in order to detect the vapors of explosives such as TNT and 2,4-DNT. Its special feature is that some organic salt (TABH) is added to the spinning solu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/728C08F220/18C08F220/14C08F220/06
CPCC08F220/14C08F220/18C08F220/1808D04H1/4382D04H1/728C08F220/06
Inventor 李为立朱美芳杨升元
Owner DONGHUA UNIV
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