A kind of preparation method of antibacterial and anti-electromagnetic radiation composite film

A technology of anti-electromagnetic radiation and composite film, which is applied in the field of anti-electromagnetic radiation materials, can solve the problems of boron thermal neutron absorption performance decline, neutron shielding effect, large concrete volume, etc., and achieve high tensile strength and long-lasting shielding performance , The effect of simple preparation process

Active Publication Date: 2017-12-12
苏州羽燕新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention: the current traditional and single shielding material can no longer meet the protection requirements such as mobile reactors and portable radiation sources, such as large concrete volume, poor mobility, poisonous Pb, and the presence of "X-ray weak Absorption zone", poor neutron shielding effect, boron thermal neutron absorption performance decline and other problems, provides a preparation method of anti-electromagnetic radiation antibacterial composite film, the invention mixes starch and polyvinyl chloride to make a film liquid, Then mix the film liquid and sodium alginate film liquid, add nanometer rare earth oxide materials to the mixed liquid, and finally cool down and let stand, vacuum degassing, cast film forming, and dry to obtain an antibacterial anti-electromagnetic radiation composite film, which is made by the present invention The film not only has high tensile strength and high light transmittance, but also has a wide shielding range, long-lasting shielding performance, simple preparation process, non-toxic and harmless products, and is easy to use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First weigh 30g of cornstarch, put it into an oven, and dry it at 80°C for 5h, put the dried cornstarch into a 1L three-necked flask, and add 50g of polyvinyl chloride and 500mL of Put distilled water in a water bath, set it at 90°C and stir for 5 hours. After the reaction, lower the temperature to 60°C, then add 40mL of 5% citric acid solution and 20mL of pyridine into the flask, and stir for 1h to complete the activation. After cooling to room temperature; add acetone solution to the activated solution at a volume ratio of 1:1.5, stir and mix evenly, and add 10% of the total mass of dioctyl phthalate to the mixed solution as a plasticizer, and continue to magnetically Stir for 30 minutes, after stirring, the film liquid is obtained, and set aside; weigh 10g of sodium alginate powder in a 500mL reaction kettle, add 250mL of distilled water into the reaction kettle, set the temperature in the kettle to 60°C, and let it stand for 2h to make the sodium alginate Fully swel...

example 2

[0020] First weigh 40g of cornstarch, put it in an oven, and dry it at 90°C for 5.5h. Put the dried cornstarch into a 1L three-necked flask, and add 65g of polyvinyl chloride and 550mL of Put distilled water into a water bath, set it at 93°C and stir for 5.5 hours. After the reaction, lower the temperature to 65°C, then add 45mL of 5% citric acid solution and 25mL of pyridine into the flask, stir and activate for 1.5h After activation, cool to room temperature; add acetone solution to the activated solution at a volume ratio of 1:1.5, magnetically stir and mix evenly, and add a total mass of 13% dioctyl phthalate to the mixed solution as a plasticizer , continue magnetic stirring for 35 minutes, and obtain a membrane liquid after stirring, and set aside; weigh 13g of sodium alginate powder in a 500mL reaction kettle, add 275mL of distilled water to the reaction kettle, set the temperature in the kettle to 65°C, and let it stand for 3h to make The sodium alginate is fully swoll...

example 3

[0023]First, weigh 50g of cornstarch, put it in an oven, and dry it at 100°C for 6 hours. Put the dried cornstarch into a 1L three-necked flask, and add 80g of polyvinyl chloride and 600mL of Put distilled water in a water bath, set it at 95°C and stir for 6 hours. After the reaction, lower the temperature to 70°C, then add 50mL of 5% citric acid solution and 30mL of pyridine into the flask, stir and activate for 2h, and the activation is complete. After cooling to room temperature; add acetone solution to the activated solution at a volume ratio of 1:1.5, magnetically stir and mix evenly, and add 15% of the total mass of dioctyl phthalate to the mixed solution as a plasticizer, and continue to magnetically Stir for 40 minutes, after stirring, the film liquid is obtained, and set aside; weigh 15g of sodium alginate powder into a 500mL reaction kettle, add 300mL of distilled water to the reaction kettle, set the temperature in the kettle to 70°C, and let it stand for 4h to make ...

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Abstract

The invention discloses a preparation method of an antimicrobial electromagnetic-radiation-resistant composite film, belonging to the field of electromagnetic-radiation-resistant materials. The preparation method comprises the following steps: mixing starch and polyvinyl chloride to prepare a film solution, mixing the film solution and a sodium alginate film solution, adding a nano rare-earth oxide material into the mixed solution, and finally, carrying out cooling, standing, vacuum degassing, film casting and drying to obtain the antimicrobial electromagnetic-radiation-resistant composite film. The film prepared by the method has the advantages of high tensile strength, high light transmittance, wide shielding range, enduring shielding property and simple preparation technique. The prepared product is nontoxic and harmless, and is convenient to use.

Description

technical field [0001] The invention discloses a preparation method of an antibacterial and anti-electromagnetic radiation composite film, belonging to the field of anti-electromagnetic radiation materials. Background technique [0002] With the continuous development of electronic technology, a large number of electrical, electronic, and electrical products have come out one after another. The alternating electric field excites the magnetic field around it, and the alternating magnetic field can excite the electric field around it, and the electric field and magnetic field are alternately generated. [0003] Propagated in the air, we call it electromagnetic waves. Because it is invisible, intangible, and short-term contact will not cause discomfort. Once it accumulates into a disease, it is difficult to treat, so the scientific community calls it an "invisible killer". the fourth largest source of pollution. With the continuous development of national defense scientific ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L3/06C08L5/04C08K5/12C08K5/053C08J5/18C08B31/04
CPCC08B31/04C08J5/18C08J2327/06C08L27/06C08L2201/08C08L2203/16C08L2205/03C08L3/06C08L5/04C08K5/12C08K5/053
Inventor 林倩倩
Owner 苏州羽燕新材料科技有限公司
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