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A kind of general epoxy primer and its preparation method and application

A primer and epoxy technology, used in primers, epoxy coatings, coatings, etc., can solve the problems of poor adhesion and long adaptation period, and achieve the purpose of improving adhesion, promoting improvement and promoting adhesion. Effect

Active Publication Date: 2021-02-09
ZHEJIANG FEIJING PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of epoxy universal primer has strong anti-corrosion ability, but its adhesion is only about 7MPa, and the adhesion is poor
[0006] The current epoxy universal primers all have the disadvantages of poor adhesion and long adaptation period. For this reason, how to develop a new epoxy universal primer in order to further improve the performance of the application in the shipbuilding field, for the shipbuilding industry Development is meaningful

Method used

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  • A kind of general epoxy primer and its preparation method and application
  • A kind of general epoxy primer and its preparation method and application
  • A kind of general epoxy primer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The present embodiment provides a kind of epoxy general primer, comprises A component and B component, and wherein the mass ratio of A component and B component is 5.4:1, and A component comprises following components:

[0058]

[0059] Component B includes the following components in parts by weight:

[0060]

[0061] The preparation method is:

[0062] (1) Prepare a solution after dissolving epoxy resin, C9 petroleum resin, trichloropropane and xylene at 45°C for 20 minutes;

[0063] (2) Add polyoxyethylene fatty alcohol ether, bentonite, and titanium dioxide to the mixed solution obtained in step (1), and finally slowly add aluminum tripolyphosphate and N,N,N',N'-tetraglycidyl-4 , 4'-diaminodiphenylmethane, stirring at a rotation speed of 950r / min, and dispersing at 57°C for 30min to obtain component A;

[0064] (3) Mix the epoxy resin curing agent, dimethylpolysiloxane, 3-methylphenol and xylene uniformly according to the weight ratio to obtain component B; ...

Embodiment 2

[0067] The present embodiment provides a kind of epoxy universal primer, comprises A component and B component, and wherein the mass ratio of A component and B component is 5.2:1, and A component comprises following components:

[0068]

[0069] Component B includes the following components in parts by weight:

[0070]

[0071] The preparation method is:

[0072] (1) Prepare a solution after dissolving epoxy resin, C9 petroleum resin, trichloropropane and xylene at 50°C for 30 minutes;

[0073] (2) Add polyoxyethylene alkylphenol ether, bentonite, and titanium dioxide to the mixed solution obtained in step (1), and finally slowly add aluminum tripolyphosphate and N,N,N',N'-tetraglycidyl- 4,4'-Diaminodiphenylmethane, stirred at a rotation speed of 1000r / min, dispersed at 58°C for 40min to obtain component A;

[0074] (3) Mix the epoxy resin curing agent, dimethylpolysiloxane, 3-methylphenol and xylene uniformly according to the weight ratio to obtain component B;

[00...

Embodiment 3

[0077] The present embodiment provides a kind of epoxy universal primer, comprises A component and B component, and wherein the mass ratio of A component and B component is 5.6:1, and A component comprises following components:

[0078]

[0079] Component B includes the following components in parts by weight:

[0080]

[0081] The preparation method is:

[0082] (1) Prepare a solution after dissolving epoxy resin, C9 petroleum resin, trichloropropane and xylene at 40°C for 10 minutes;

[0083] (2) Add methyl phosphate, bentonite, and titanium dioxide to the mixed solution obtained in step (1), and finally slowly add aluminum tripolyphosphate and N,N,N',N'-tetraglycidyl-4,4' - Diaminodiphenylmethane, stirred at a rotation speed of 900r / min, dispersed at 56°C for 20min to obtain component A;

[0084] (3) Mix the epoxy resin curing agent, dimethylpolysiloxane, 3-methylphenol and xylene uniformly according to the weight ratio to obtain component B;

[0085] (4) Mix compo...

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Abstract

The invention provides an epoxy universal primer, which comprises A component and B component, wherein, A component comprises the following components by weight: 11-18 parts of epoxy resin, 2-5 parts of C9 petroleum resin , 0.7-1.5 parts of bentonite, 4-8 parts of titanium dioxide, 2-4 parts of aluminum tripolyphosphate, 0.5- 1 part, 0.06-0.2 parts of dispersant, 1-3 parts of trichloropropane, 5-10 parts of xylene; component B includes the following components by weight: 30-60 parts of epoxy resin curing agent, dimethyl 2 to 5 parts of polysiloxane, 0.5 to 1.5 parts of 3-methylphenol, 20 to 40 parts of xylene; the mass ratio of the A component to the B part is (5.2 to 5.6): 1, provided by the present invention The epoxy universal primer has good adhesion and short adaptation period, especially suitable for application in the marine field.

Description

technical field [0001] The invention belongs to the field of coatings, and relates to a universal epoxy primer and a preparation method and application thereof, in particular to a marine epoxy universal primer and a preparation method and application thereof. Background technique [0002] Epoxy Universal Primer is a multi-purpose epoxy primer that can be used on non-ferrous metal surfaces such as steel and galvanized steel, aluminum, copper, stainless steel, etc., and is suitable for submerged water environments and air exposure environments in atmospheric exposure environments middle. The general color is reddish brown, gray, etc. It has good adhesion to steel, galvanized steel, and non-ferrous metal surfaces, and has good water resistance and corrosion resistance. It can be used in epoxy, polyurethane, alkyd, chlorinated rubber, and acrylic. It can be recoated with other paints, but the adhesion of the existing primers can be applied under ordinary conditions, and it cann...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/61C09D7/63C09D7/65
CPCC08K2003/2241C08K2003/327C09D5/002C09D5/08C09D163/00C09D7/61C09D7/63C09D7/65C08L57/02C08L83/04C08K3/346C08K3/22C08K3/32C08K5/18C08K5/13
Inventor 颜朝明唐浩严杰
Owner ZHEJIANG FEIJING PAINT
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