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Epoxy resin composite coating based on ZIF-1, preparation method, and coating product

An epoxy resin coating, ZIF-L technology, applied in the field of surface coating and coating, can solve the problems of two-dimensional metal-organic framework material ZIF-L layer cracking, weakening interaction, short aging, etc., to achieve excellent anti-corrosion performance , the effect of preventing biofouling and low cost

Active Publication Date: 2022-08-05
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

If the interaction between the two-dimensional metal-organic framework material ZIF-L is weakened by means of strong mechanical stirring force and shear force or the high-energy oscillation of ultrasound, a stable two-dimensional metal-organic framework material ZIF-L can be obtained in a short time. -L dispersion liquid, but this method has short timeliness and high cost. It may also cause the cracking of the ZIF-L layer of the two-dimensional metal organic framework material due to the long ultrasonic time, the sheet diameter is reduced, and local defects appear

Method used

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  • Epoxy resin composite coating based on ZIF-1, preparation method, and coating product
  • Epoxy resin composite coating based on ZIF-1, preparation method, and coating product
  • Epoxy resin composite coating based on ZIF-1, preparation method, and coating product

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preparation example Construction

[0063] On the other hand, the embodiment of the present invention also proposes a preparation method of the above-mentioned epoxy resin composite coating based on ZIF-L, which mainly comprises the following steps:

[0064] Step 1) Mixing the two-dimensional metal-organic framework material ZIF-L nanoparticle, 8-hydroxyquinoline-terminated aniline trimer, and a first solvent, performing ultrasonic treatment, and then performing washing and filtering to obtain a filter cake.

[0065] This step is specifically as follows: dispersing the two-dimensional metal-organic framework material ZIF-L nanoparticles in the first solvent, then adding 8-hydroxyquinoline-terminated aniline trimer thereto, ultrasonically treating, and washing with deionized water for many times After centrifugation to remove the first solvent, a filter cake was obtained.

[0066] The first solvent is selected from one or a combination of N,N-dimethylformamide and N,N-dimethylacetamide.

[0067] In this step, th...

Embodiment 1

[0083] The present embodiment prepares a kind of epoxy resin composite coating based on ZIF-L, mainly comprises the following steps:

[0084] 1) Preparation of two-dimensional metal-organic framework material ZIF-L nanoparticles:

[0085] 0.4 g Zn(NO 3 ) 2 ·6H 2 O and 1.1 g of 2-methylimidazole were respectively dissolved in 10 mL of deionized water; then the aqueous solution of zinc nitrate was added to the aqueous solution of 2-methylimidazole to obtain a mixture; the mixture was vigorously stirred at room temperature for 2 hours. The obtained white precipitate was collected by repeated centrifugation at 8000 rpm for 30 min, washed three times with water and methanol, and dried in an oven at 65 °C overnight to obtain white powdery two-dimensional metal-organic framework material ZIF-L nanoparticles.

[0086] like figure 1 As shown, the two-dimensional metal-organic framework material ZIF-L nanoparticles prepared in this example are in the shape of two-dimensional leaves....

Embodiment 2

[0096] The present embodiment prepares a kind of epoxy resin composite coating based on ZIF-L, mainly comprises the following steps:

[0097] 1) Preparation of two-dimensional metal-organic framework material ZIF-L nanoparticles:

[0098] This step is exactly the same as step 1) of Example 1.

[0099] 2) Preparation of 8-hydroxyquinoline terminated aniline trimer (QAAT):

[0100] This step is exactly the same as step 2) of Example 1.

[0101] 3) Preparation of epoxy resin composite coating based on ZIF-L:

[0102] Disperse 0.5 g of two-dimensional metal-organic framework material ZIF-L nanoparticles in 20 mL of N,N-dimethylformamide, and add 0.25 g of 8-hydroxyquinoline-terminated aniline trimer (QAAT) to it, Ultrasonic dispersion was performed for 10 minutes, washed with 50 mL of deionized water and centrifuged to obtain a filter cake. The filter cake was ultrasonically dispersed in 20 mL of ethanol for 10 minutes to form a dispersion. The prepared dispersion was added t...

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Abstract

The invention relates to a ZIF-L-based epoxy resin composite coating, a preparation method, and a coating product, and relates to the technical field of coatings and surface coatings. The main technical scheme adopted is: the epoxy resin composite coating based on ZIF-L comprises: two-dimensional metal organic framework material ZIF-L nanoparticles, 8-hydroxyquinoline-terminated aniline trimer, epoxy resin coating body . Wherein, in the epoxy resin composite coating based on ZIF-L: the mass fraction of the two-dimensional metal-organic framework material ZIF-L nanoparticles is 0.1-10wt%; the 8-hydroxyquinoline-terminated aniline trimer The mass of 2D metal-organic framework material ZIF‑L nanoparticles is 5‑50%. The invention is mainly used to provide and prepare a ZIF-L-based epoxy resin composite coating with excellent antibacterial, antifouling and anticorrosion properties and a coating product, which can prevent Gram-negative bacteria, Gram-positive bacteria and It has good poisoning and anti-adhesion effects on Chlorella, Phaeodactylum tricornutum and Navicula.

Description

technical field [0001] The invention relates to the technical field of coatings and surface coatings, in particular to a ZIF-L-based epoxy resin composite coating, a preparation method, and a coating product. Background technique [0002] Drug-resistant strains, bacterial adhesion, and subsequent biological contamination have become one of the leading causes of death and economic loss worldwide. Especially in natural marine environments, the coexistence of bacteria with other organisms (animals, plants, etc.) makes biological decontamination complex and challenging. Before the introduction of organotin compounds such as tributyltin (TBT) in the 1960s, a variety of toxic materials (eg, copper, mercury, arsenic) were used to control biofouling. However, compounds based on tributyltin (TBT) can have detrimental effects on the environment, so since the beginning of 2008 more and more countries have signed the international treaty "banning the use of antifouling coatings based o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D5/14C09D5/16
CPCC09D163/00C09D5/14C09D5/1625C09D5/1637C09D5/1662C08L87/00C08K5/3437
Inventor 隋国鑫李靖宇张阳林国明刘冬艳马娜孙兆松
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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