Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of polyvinyl alcohol film material with formaldehyde detection effect and preparation method thereof

A polyvinyl alcohol film, polyvinyl alcohol technology, applied in analytical materials, measuring devices, instruments, etc., can solve the problems of short service cycle and cumbersome operation of formaldehyde sensors, achieve good compatibility, overcome probe molecular migration, Easy to use effects

Active Publication Date: 2016-02-17
唐炜程
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a polyvinyl alcohol film material with the effect of detecting formaldehyde and its preparation method, so as to solve the problems of cumbersome operation and short service life of the existing formaldehyde sensor

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of polyvinyl alcohol film material with formaldehyde detection effect and preparation method thereof
  • A kind of polyvinyl alcohol film material with formaldehyde detection effect and preparation method thereof
  • A kind of polyvinyl alcohol film material with formaldehyde detection effect and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Prepare an aqueous solution of polyvinyl alcohol with a mass concentration of 4%, weigh 4 g of polyvinyl alcohol and 96 g of water, and stir to dissolve. (1) Synthetic probe molecule KD-XA01

[0029] Dissolve 3.24g of 1-phenyl-1,3-butanedione in 60ml of benzene, add 3.08g of ammonium acetate and 1ml of acetic acid, reflux at 80°C for 12 hours in a nitrogen atmosphere to obtain the product, wash and dry the reactant, and Remove solvent; (2) synthetic polymer P(St-alt-Man)

[0030] Weigh 6.24g styrene, dissolve 7.06g maleic anhydride in 180mL toluene, add 0.06gAIBN, pass N 2 15min, sealed, and reacted in an oil bath at 65°C for 20h. The product was filtered with suction and rinsed with hot toluene, then dissolved in acetone, and separated by toluene precipitation. After repeated dissolution and precipitation three times, it was dried in a vacuum oven at 30°C to obtain P(St- alt-Man);

[0031] (3) Preparation of nanoparticle solution

[0032] Weigh 0.5g of P(St-alt-Man...

Embodiment 2

[0036] Prepare an aqueous solution of polyvinyl alcohol with a mass concentration of 5%, weigh 5 g of polyvinyl alcohol and 95 g of water, and stir to dissolve. (1) Synthetic probe molecule KD-XA01

[0037] Dissolve 3.24g of 1-phenyl-1,3-butanedione in 60ml of benzene, add 3.08g of ammonium acetate and 1ml of acetic acid, reflux at 80°C for 12 hours in a nitrogen atmosphere to obtain the product, wash and dry the reactant, and Remove solvent; (2) synthetic polymer P(St-alt-Man)

[0038] Weigh 6.24g styrene, dissolve 7.06g maleic anhydride in 180mL toluene, add 0.06gAIBN, pass N 2 Gas for 15 minutes, seal, and react in an oil bath at 65°C for 20h. The product was filtered with suction and rinsed with hot toluene, then dissolved in acetone, and separated by toluene precipitation. After repeated dissolution and precipitation three times, it was dried in a vacuum oven at 30°C to obtain P(St -alt-Man);

[0039] (3) Preparation of nanoparticle solution

[0040] Weigh 0.5g of P(S...

Embodiment 3

[0044] Prepare a polyvinyl alcohol aqueous solution with a mass concentration of 8%, weigh 8 g of polyvinyl alcohol and 92 g of water, and stir to dissolve. (1) Synthetic probe molecule KD-XA01

[0045] Dissolve 3.24g of 1-phenyl-1,3-butanedione in 60ml of benzene, add 3.08g of ammonium acetate and 1ml of acetic acid, reflux at 80°C for 12 hours in a nitrogen atmosphere to obtain the product, wash and dry the reactant, and Remove solvent; (2) synthetic polymer P(St-alt-Man)

[0046] Weigh 6.24g styrene, dissolve 7.06g maleic anhydride in 180mL toluene, add 0.06gAIBN, pass N 2 Gas for 15 minutes, seal, and react in an oil bath at 65°C for 20h. The product was filtered with suction and rinsed with hot toluene, then dissolved in acetone, and separated by toluene precipitation. After repeated dissolution and precipitation three times, it was dried in a vacuum oven at 30°C to obtain P(St -alt-Man);

[0047] (3) Preparation of nanoparticle solution

[0048] Weigh 0.5g of P(St-alt-...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a polyvinyl alcohol membrane material with a formaldehyde detection effect and a preparation method thereof. The preparation method comprises the following steps: firstly synthesizing a polymer P(St-alt-Man) and formaldehyde probe molecules KD-XA01, preparing a P(St-alt-Man) nanoparticle solution loaded with probe molecules by a macromolecular self-assembly technology, adding the P(St-alt-Man) nanoparticle solution into a polyvinyl alcohol film-forming solution, and preparing the polyvinyl alcohol membrane material with the formaldehyde detection effect by adopting a curtain coating method.

Description

technical field [0001] The invention belongs to the field of polymer film materials and chemical sensors, and in particular relates to a polyvinyl alcohol film material with formaldehyde detection effect and a preparation method thereof. Background technique [0002] Formaldehyde is an irritating and suffocating colorless gas at room temperature. It is extremely harmful to the human body and is one of the environmental pollutants that has received increasing attention. In my country's list of priority control of toxic chemicals, formaldehyde ranks second. Therefore, it is particularly important to establish a formaldehyde determination method that is easy to operate and has high precision. The most commonly used method for detecting formaldehyde is colorimetry, which can be divided into colorimetric acid method, acetylacetone method, AHMT colorimetric method, etc.; in national standards, the preferred method for detecting formaldehyde in textiles, food, and air is colorimetr...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L29/04C08L35/06C08F222/08C08J5/18C08J3/00G01N33/00
Inventor 白绘宇李育飞葛云龙刘晓亚
Owner 唐炜程
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com