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Method for preparing urushiol into film with nanofiber structure by using electrospinning technology

A nanofiber, urushiol technology, applied in the direction of electrospinning, fiber processing, fiber chemical characteristics, etc., to achieve the effect of improving performance, realizing mechanization, and improving production efficiency

Inactive Publication Date: 2021-01-26
MINJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method for making urushiol into a film with a nanofiber structure by electrospinning technology, so as to improve the performance of traditional PVP, and change the fact that urushiol can only be painted manually. status quo

Method used

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  • Method for preparing urushiol into film with nanofiber structure by using electrospinning technology
  • Method for preparing urushiol into film with nanofiber structure by using electrospinning technology
  • Method for preparing urushiol into film with nanofiber structure by using electrospinning technology

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Experimental program
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Embodiment

[0018] Step 1. Take 5 g of raw lacquer in a beaker, add 10 g of absolute ethanol to dissolve the raw lacquer, and after ultrasonication for two hours, remove impurities in the solution by filtration, and then evaporate at 40°C with a rotary evaporator After removing absolute ethanol, the resulting substance is urushiol, which has a purity of about 90%.

[0019] Step 2. Stir 0.4 g of the prepared urushiol and 10 g of absolute ethanol with a magnetic stirrer at a speed of 450 r / min for 30 min to obtain a transparent brown liquid, then continue to slowly add 0.4 g of it while stirring at a speed of 450 r / min PVP, to prevent a large amount of PVP added together, after adding PVP, continue magnetic stirring for 6-8h. During the whole operation, the mouth of the beaker needs to be sealed with parafilm to prevent the volatilization of absolute ethanol.

[0020] Step 3. Collect the mixed solution obtained in step 2 with a syringe. The needle is No. 23, the metal of the needle is the ...

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Abstract

The invention discloses a method for preparing urushiol into a film with a nanofiber structure by using an electrospinning technology. The method comprises the following steps of stirring and mixing urushiol extracted from raw lacquer with absolute ethyl alcohol, adding PVP (polyvinyl pyrrolidone), continuously stirring, and preparing a mixed solution into the film with the nanofiber structure bythe electrospinning technology. The water resistance and acid resistance of the prepared film are obviously improved compared with those of a film without urushiol, the current situation that urushiolcan only be manually brushed is changed, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of functional materials, and in particular relates to a method for making urushiol into a thin film with a nanofiber structure by using electrospinning technology. Background technique [0002] Urushiol is a natural polymer composite material extracted from raw lacquer. As one of the oldest paints in my country, it has a history of more than 8,000 years and is known as the "King of Paint". Urushiol has many excellent properties, such as high hardness, good wear resistance, bright gloss, and strong adhesion to the substrate; the surface of the paint film is dense, and it is a unique anti-penetration coating; the paint film has stable heat resistance and durability. properties, and resistant to chemical corrosion and organic solvents. It can form a coating on the surface of the utensil by manually brushing on the surface of the utensil to protect the utensil. Some cultural relics lacquerware unearthed in my country ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4326D04H1/4382D04H1/728D01D5/00D01F6/44D01F1/10
CPCD01D5/003D01D5/0069D01D5/0092D01F1/10D01F6/44D04H1/4326D04H1/4382D04H1/728
Inventor 许炳铨吴坤林林棋
Owner MINJIANG UNIV