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ZIF-L-based epoxy resin composite coating, preparation method and coating product

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

Active Publication Date: 2022-03-04
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • ZIF-L-based epoxy resin composite coating, preparation method and coating product
  • ZIF-L-based epoxy resin composite coating, 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 method for preparing the above-mentioned ZIF-L-based epoxy resin composite coating, which mainly includes the following steps:

[0064] Step 1) Mix two-dimensional metal-organic framework material ZIF-L nanoparticles, 8-hydroxyquinoline-terminated aniline trimer, and a first solvent, perform ultrasonic treatment, and then wash and filter to obtain a filter cake.

[0065] This step is specifically: disperse the two-dimensional metal-organic framework material ZIF-L nanoparticles in the first solvent, then add 8-hydroxyquinoline-terminated aniline trimer to it, perform ultrasonic treatment, and wash with deionized water for several times After centrifugation and removal of the first solvent, a filter cake is obtained.

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

[0067] In this step, the two-dimensional metal organic framewor...

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

[0086] Such as 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 completely consistent with step 1) of Example 1.

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

[0100] This step is completely consistent with step 2) of Example 1.

[0101] 3) prepare the epoxy resin composite coating based on ZIF-L:

[0102] Disperse 0.5g of two-dimensional metal-organic framework material ZIF-L nanoparticles in 20mL of N,N-dimethylformamide, and add 0.25g of 8-hydroxyquinoline-terminated aniline trimer (QAAT) to it, Ultrasonic disperse for 10 minutes, wash and centrifuge with 50 mL deionized water to obtain a filter cake. The filter cake was ultrasonically dispersed in 20 mL of ethanol for 10 minutes to form a dispersion. Add the prepared dispersion to 72.93g of epoxy re...

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Abstract

The invention relates to an epoxy resin composite coating based on ZIF-L, a preparation method and a coating product, and relates to the technical field of coatings and surface coatings. According to the main technical scheme, the ZIF-L-based epoxy resin composite coating is prepared from two-dimensional metal organic framework material ZIF-L nanoparticles, 8-hydroxyquinoline terminated aniline tripolymer and an epoxy resin coating body. In the ZIF-L-based epoxy resin composite coating, the mass fraction of the two-dimensional metal organic framework material ZIF-L nanoparticles is 0.1-10 wt%, and the mass fraction of the two-dimensional metal organic framework material ZIF-L nanoparticles is 0.1-10 wt%. The mass of the 8-hydroxyquinoline terminated aniline tripolymer is 5 to 50 percent of the mass of the two-dimensional metal organic framework material ZIF-L nano-particles. The invention is mainly used for providing and preparing the ZIF-L-based epoxy resin composite coating with excellent antibacterial, antifouling and anticorrosive properties and a coating product, can prevent gram-negative bacteria and gram-positive bacteria, and 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 coating products. Background technique [0002] Antibiotic-resistant strains, bacterial adherence, and subsequent biocontamination 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 (plants, animals, etc.) makes biodecontamination complex and challenging. Prior to the introduction of organotin compounds such as tributyltin (TBT) in the 1960s, a variety of toxic materials (e.g., copper, mercury, arsenic) were used to control biofouling. However, compounds based on tributyltin (TBT) can have harmful effects on the environment, so since the beginning of 2008, more and more countries have signed an international treaty banning the use of antifouling paints based on organotin c...

Claims

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Application Information

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Patent Type & Authority Applications(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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