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A kind of pet polyester chip with air purification function and its preparation method and application

An air purification and polyester chip technology, applied in the field of PET polyester, can solve the problem of PET film without air purification function, etc., and achieve the effect of shortening the replacement cycle

Active Publication Date: 2018-09-25
天津朗华科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But there is no PET film with air purification function in the prior art, therefore, how to prepare PET film with air purification function is a technical problem to be solved at present

Method used

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  • A kind of pet polyester chip with air purification function and its preparation method and application
  • A kind of pet polyester chip with air purification function and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] The preparation method of silicon airgel precursor is:

[0079] (1) Prepare a mixed solution of silicon source and solvent

[0080] Take water glass with a modulus of 3.0 and put it into a reaction kettle, dilute it with 2.5 times the mass of deionized water, stir at 180 rpm for 30 minutes, and filter through a 200-mesh sieve to obtain a water glass solution.

[0081] (2) Sol

[0082] Get 8mol / L sulfuric acid, add zirconium sulfate salt (zirconium sulfate salt is counted as its zirconia, and the mol ratio with the silicon oxide of water glass solution is 5:100), yttrium sulfate salt (yttrium sulfate salt is counted as its yttrium oxide, and The molar ratio of aluminum oxide is 1:100); After mixing evenly, spray and add to the water glass solution that step (1) obtains, carry out rapid stirring with the speed of 1300 rev / min while spraying, when controlling pH value to 1.5 Stop spraying, and the spraying time is controlled at 100 minutes; Obtain sol.

[0083] (3) Gel ...

Embodiment 2

[0094] The preparation method of silicon airgel precursor is:

[0095] (1) Prepare a mixed solution of silicon source and solvent

[0096] Take water glass with a modulus of 3.2 and put it into a reaction kettle, dilute it with 3 times the mass of deionized water, stir at 200 rpm for 30 minutes, and filter through a 200-mesh sieve to obtain a water glass solution.

[0097] (2) Sol

[0098] Get 10mol / L nitric acid, add aluminum hydrochloride (aluminum hydrochloride is calculated in alumina, and the mol ratio of aluminum oxide and silicon oxide in the water glass solution is 2:100), lanthanum hydrochloride (lanthanum hydrochloride is calculated in lanthanum oxide, and The molar ratio of aluminum oxide is 3:100); After mixing evenly, spray and add to the water glass solution that step (1) obtains, carry out rapid stirring with the speed of 1200 rpm while spraying, control the pH value till 2.5 , the spraying time is controlled at 100 minutes; the sol is obtained.

[0099] (3) ...

Embodiment 3

[0110] The preparation method of silicon airgel precursor is:

[0111] (1) Prepare a mixed solution of silicon source and solvent

[0112] Get modulus 4.0 water glass and pack in reactor, and dilute with deionized water of 3 times of quality, 80 rev / mins, stir 30 minutes, filter through 200 mesh sieves, obtain water glass solution.

[0113] (2) Sol

[0114] Get 15mol / L nitric acid, add aluminum oxalate salt (in terms of aluminum oxide, the mol ratio with silicon oxide in the water glass solution is 3:100), lanthanum oxalate salt (in terms of lanthanum oxide, the mol ratio with aluminum oxide is 6: 100); after mixing evenly, spray and join the water glass solution that step (1) obtains, carry out rapid stirring with the speed of 1800 rev / mins while spraying, control pH value till 2.5, spray time is controlled at 100 minutes ; Get the sol.

[0115] (3) Gel

[0116] Add the sodium hydroxide solution with a pH value of 11.5 to the sol obtained in step (2) by spraying, and stir...

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Abstract

The invention relates to a PET (polyethylene terephthalate) polyester slice with an air purifying function as well as a preparation method and application of the PET polyester slice. The PET polyester slice is prepared from PET polyester, wherein the PET polyester is prepared from aerogel particles and polyethylene terephthalate; the aerogel particles are composite silicon aerogel particles of nanometer titanium oxide and a rare-earth solid solution. The PET polyester slice is bi-directionally stretched to prepare a PET thin film. As a nanoscale titanium dioxide photocatalyst exists in the composite silicon aerogel particles of the nanometer titanium oxide and the rare-earth solid solution in the thin film, the silicon aerogel is used for adsorbing pollutants, such as formaldehyde, and the nanometer TiO2 is used for photolyzing the pollutants, such as the formaldehyde, deposition is preformed while adsorption is performed, a long-term decomposition effect is achieved, and the polyester thin film has the performance of automatically depositing the pollutants in air. When the polyester thin film provided by the invention is paved on vehicle window glass, the air in a vehicle can be effectively purified; when the polyester thin film provided by the invention is paved on window glass or a furniture surface in a building, indoor air can be effectively purified.

Description

technical field [0001] The invention belongs to the field of PET polyester, and in particular relates to a PET polyester chip with air purification function and its preparation method and application. Background technique [0002] PET film is a film material made of polyethylene terephthalate as a raw material, which is made into a thick sheet by extrusion and then biaxially stretched. At the same time, it is a kind of polymer plastic film, which is more and more favored by consumers because of its excellent comprehensive properties. It is a colorless, transparent and glossy film with excellent mechanical properties, high rigidity, hardness and toughness. Puncture resistance, friction resistance, high temperature and low temperature resistance, chemical resistance, oil resistance, air tightness and fragrance retention are good, and it is one of the commonly used barrier composite film substrates. [0003] PET film is a kind of packaging film with comprehensive performance. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08K9/12C08K9/06C08K3/22C08K7/24C08G63/183B01J20/26B01J20/28B01J20/30B01D53/86B01D53/72
CPCB01D53/8668B01D2255/206B01D2255/20707B01D2257/708B01J20/06B01J20/262B01J20/28033B01J2220/46B01J2220/4806B01J2220/4812C01B33/158C08G63/183C08J5/18C08J2367/02C08K3/08C08K3/22C08K7/24C08K9/06C08K9/12C08K2003/023C08K2003/221C08K2003/2213C08K2003/2241C08K2201/003C08K2201/006C08K2201/011C08L2203/16C08L67/02Y02P20/129
Inventor 郑善
Owner 天津朗华科技发展有限公司
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