A detection method for chemical bonding at the interface of tie paint/antifouling paint organic coating

A technology of organic coating and interface chemistry, which is applied in the detection field of chemical bonding at the interface of connecting paint/antifouling paint organic coating, which can solve the problems of difficult detection of chemical reactions, retention of bonding forms, and difficulty in finding the bonding interface, etc. Achieve the effect of simple detection method, prolong service life and high economic benefit

Inactive Publication Date: 2017-01-04
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is known that the research on interfacial chemical bonding is involved in the fields of metal interface, ceramic interface and composite materials. The current research on metal interface chemical bonding is to use modified epoxy to form a chemical bond with the metal surface, thereby improving the organic coating on the metal substrate. Surface adhesion, but the bonding form still stays in the infrared spectrum characterization, and the bonding probability cannot be detected; after searching, it is found that the published patent documents involve the research of interface chemical bonding. In terms of ceramic interface research, US Patent CN101496112, 2009.7. 29 It is disclosed that a chemically bonded oxide-phosphate ceramic cement matrix is ​​formed by cold sintering, but the detection method of its chemical bonding probability is not indicated; in the aspect of composite material interface research (fiber composite material, 2000.01, high-strength polyethylene Research on the interface of fiber-reinforced composite materials - the chemical bonds and effects of multifunctional compounds in the interface), Yu Muhuo et al. used the carboxyl groups on the surface of polyethylene fibers oxidized by potassium dichromate as reaction points, and introduced multifunctional amine alcohols Compounds, the oxidation reaction and the existence of multifunctional compounds on the fiber surface have been proved by using FTIR spectroscopy and functional group quantitative analysis, but the grafting rate of multifunctional compounds on the fiber surface has not been given; in terms of organic coating interface, especially Using chemical bonding at the interface of antifouling/connecting paint coatings to improve interlayer adhesion, an...

Method used

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  • A detection method for chemical bonding at the interface of tie paint/antifouling paint organic coating
  • A detection method for chemical bonding at the interface of tie paint/antifouling paint organic coating
  • A detection method for chemical bonding at the interface of tie paint/antifouling paint organic coating

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Effect test

Embodiment 1

[0055] With 4.8% oxazole thiol ketone, 5.2% hexamethylene diisocyanate, 0.1% initiator and 89.9% solvent, a modified isocyanate polymer is prepared, and in the prepared modified isocyanate polymer, add Methyl butanone, preparation of the synthetic isocyanate prepolymer concentration of 10% solution, brushing on the surface of the connecting coating, still has -NCO active groups through infrared spectrum analysis; After the reaction, X-ray energy spectrum analysis and calculation can be obtained, the S / Si ratio on the interface unit area corresponds to the reaction mole ratio is 2.8×10 -6 mol / mm 2 .

Embodiment 2

[0057] Prepare a modified isocyanate polymer with 9.8% oxazole thiol ketone, 10.2% hexamethylene diisocyanate, 0.1% initiator and 79.9% solvent, and add methyl Butanone, the solution of the isocyanate prepolymer concentration synthesized by the preparation is 20%, brushed on the surface of the connecting coating, and still has -NCO active groups through infrared spectrum analysis; after reacting with the hydroxyl group on the surface of the connecting paint coating , by X-ray energy spectrum analysis and calculation, it can be obtained that the S / Si ratio on the interface unit area corresponds to the reaction mole ratio of 1.9×10 -6 mol / mm 2 .

Embodiment 3

[0059] With 14.6% benzothiol ketone, 15.4% hexamethylene diisocyanate, 0.1% initiator and 69.9% solvent, a modified isocyanate polymer is prepared, and methyl Butanone, the concentration of the prepared isocyanate prepolymer is 30% solution, brushed on the surface of the connecting coating, and still has -NCO active groups through infrared spectrum analysis; after reacting with the hydroxyl group on the surface of the connecting paint coating , by X-ray energy spectrum analysis and calculation, it can be obtained that the S / Si ratio on the interface unit area corresponds to the reaction mole ratio is 3.2×10 -6 mol / mm 2 .

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Abstract

The invention provides a method for detecting chemical bonding of a connection paint/anti-fouling paint organic coating interface, and relates to a detection method, wherein the method comprises: preparing a modified isocyanate polymer solution, brushing the modified isocyanate polymer solution, ultrasonically cleaning, analyzing chemical products in the connection paint/anti-fouling paint organic coating interface, analyzing characteristic element representation of the chemical reaction products in the organic coating interface, and analyzing probability representation of the chemical bonding of the organic coating interface, to implement detection of the chemical bonding of the connection paint/anti-fouling paint organic coating interface. The method not only can detect probability of chemical bonding of a liquid/solid interface, but also prolongs service life of an antifouling coating system, has high economic benefit. The method provided by the invention has advantages of simple manner, rapidness, high efficiency and accurate evaluation, and has guidance meaning on theory research.

Description

[0001] 【Technical field】 [0002] The invention relates to a detection method, in particular to a detection method for organic coating interface chemical bonding, in particular to a detection method for connecting paint / antifouling paint organic coating interface chemical bonding. [0003] 【Background technique】 [0004] It is known that the research on interfacial chemical bonding is involved in the fields of metal interface, ceramic interface and composite materials. The current research on metal interface chemical bonding is to use modified epoxy to form a chemical bond with the metal surface, thereby improving the organic coating on the metal substrate. Surface adhesion, but the bonding form still stays in the infrared spectrum characterization, and the bonding probability cannot be detected; after searching, it is found that the published patent documents involve the research of interface chemical bonding. In terms of ceramic interface research, US Patent CN101496112, 2009....

Claims

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Application Information

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IPC IPC(8): G01N21/3563G01N1/28
Inventor 陈凯锋王胜龙吴波
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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