Epoxy primer having good early water resistance and preparation method thereof
An initial water resistance, epoxy primer technology, applied in the field of coatings, can solve problems such as poor water resistance, slow initial curing, and paint film blistering, and achieve the effects of improving crosslinking density, fast initial curing, and good adhesion.
Inactive Publication Date: 2017-02-08
重庆南方漆业有限公司
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Problems solved by technology
[0002] Because the construction party is limited by the site and conditions, many times the epoxy primer is applied in the open air, and the initial paint film has not had enough time to adjust its state and is not fully cured, so it will withstand the penetration of rain or dew, so the paint film will exist. blistering problem
[0003] At present, epoxy primers are usually used together with polyamide curing agents. Such primers have the problems of slow surface drying, slow initial curing, and poor water resistance.
Method used
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Embodiment 1-4
[0025] The epoxy primer with good initial water resistance is composed of A composition and curing agent.
[0026] The A composition component of embodiment 1-4 is as table two
[0027] Table 2 Components (parts by weight) of the composition of Embodiment 1-4A
[0028]
[0029] Table three is the curing agent composition table (parts by weight) of embodiment 1-4:
[0030]
[0031] The weight ratio of A composition to curing agent is 8:1.
[0032] The preparation method of A composition is:
[0033] (1) Add materials 601 resin liquid, organic bentonite, polyamide wax, dispersant, titanium dioxide, and carbon black into the tank and stir evenly for 10-20 minutes;
[0034] (2), adjust the viscosity with part of mixed butanol and part of xylene in Table 2, and grind to fineness≤50 μm through machine;
[0035] (3) Add barium sulfate, aluminum tripolyphosphate, zinc phosphate, water repellent and leveling agent and stir evenly, then use the remaining mixed butanol and xyle...
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The invention discloses an epoxy primer having good early water resistance; the epoxy primer is composed of an A composition and a curing agent, wherein the A composition is prepared from the following components: a 601 resin liquid, organic bentonite, polyamide wax, a dispersing agent, titanium dioxide, carbon black, barium sulfate, aluminum tripolyphosphate, zinc phosphate, a 403 water resistance agent, isobutanol, xylene, and a leveling agent; the curing agent is composed of the following components: a 2041 cardanol curing agent, a 650 epoxy curing agent, xylene, and isobutanol. The epoxy primer has the advantages of fast surface drying, fast early curing and good water resistance. The epoxy primer is suitable for construction in an outdoor severe environment, and has good prospects for development.
Description
technical field [0001] The invention relates to an epoxy primer with good initial water resistance and a preparation method thereof, belonging to the field of coatings. Background technique [0002] Because the construction party is limited by the site and conditions, many times the epoxy primer is applied in the open air, and the initial paint film has not had enough time to adjust to the state and has not been fully cured, so it will withstand the penetration of rain or dew, so that the paint film will exist. Bubble problem. [0003] At present, epoxy primers are usually used together with polyamide curing agents. Such primers have the problems of slow surface drying, slow initial curing, and poor water resistance. [0004] Therefore the epoxy primer that develops fast surface drying, early stage curing fast, and good water resistance is suitable for construction in the open-air harsh environment and becomes an urgent problem to be solved in this area. Contents of the i...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C09D163/00C09D5/08C09D7/12
CPCC09D163/00C09D5/08C08L77/00C08K13/02C08K3/346C08K2003/2241C08K3/04C08K2003/3045C08K2003/327C08K2003/328
Inventor 穆建渝
Owner 重庆南方漆业有限公司