Method for preparing transparent Raman effect film

A Raman effect and transparency technology, applied in chemical instruments and methods, lamination, non-woven fabrics, etc., can solve the problems of difficult control of the production process, complicated SERS base materials and equipment, and achieve the effect of wide application prospects.
CN102642362BInactive Publication Date: 2014-07-02NORTHEAST FORESTRY UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHEAST FORESTRY UNIVERSITY
Publication Date
2014-07-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for preparing a transparent Raman effect film relates to preparation of optical fiber films and aims to solve the problems of complicated equipment and difficulty in controlling a production process of an existing method for preparing SERS (surface enhanced Raman scattering) base materials. The method includes the steps: firstly, preparing cellulose acetate solution with acetone, acetic acid and cellulose acetate; secondly, uniformly mixing Ag NPs suspending liquid and the cellulose acetate solution to obtain spinning liquid; thirdly, spinning the spinning liquid into a nano-fiber nonwoven felt by means of electrostatic spinning process; and fourthly, tiling the cut nano-fiber nonwoven felt in a slot of a composite film forming tool, pouring polyvinyl alcohol water solution into the slot, leading the polyvinyl alcohol water solution to be lower than the upper edge of the slot of the composite film forming tool, and maintaining pressure and drying to obtain the transparent Raman effect film. The method is mainly used for preparing the transparent Raman effect film.
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Description

technical field

[0001] The present invention relates to an optical fiber film. Background technique

[0002] Optically transparent and translucent fiber-reinforced composites have a wide range of applications, including flexible displays, aircraft glass, and light-transmitting electromagnetic wave shielding materials. The traditional method of preparing transparent composite materials is to add a small amount of reinforcing fibers to the transparent resin. The refractive index of the fiber and the resin should be matched to three decimal places to prevent light scattering at the interface between the fiber and the resin. However, this matching is limited by temperature conditions, so materials that are transparent at room temperature will become opaque as the ambient temperature changes. But for nanomaterials, the situation is different. If the size of nanomaterials is less than one-tenth of the wavelength of visible light, light will not be reflected and refracted at the i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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