CN105368193A - Production method of hanging color powder coating for building walls - Google Patents

Abstract

The invention discloses a production method of a hanging color powder coating for building walls. The method comprises the following steps: (1) adding 1/3 of water into a reaction vessel, adding with stirring a half of the measurement amount of defoaming agent and antiseptic, then adding a polyvinyl acetate emulsion and a BA-154 emulsion, stirring and reacting for over 30 min to obtain an emulsion solution for standby; (2) adding the remaining water in another reaction vessel, starting stirring, then adding the remaining foaming agent, antiseptic, kaolin and magnesium oxide in turn, stirring evenly, then adding bentonite and calcium tripolyphosphate, and stirring for at least 30 min to obtain a slurry; and (3) adding the slurry into the emulsion solution, adjusting the pH value to 8.0-8.5, and stirring evenly. The coating has strong weather resistance and high bonding strength with the wall body, is not easy to peel off, and can form a hanging flow shape and a spot color pattern.

Description

A kind of building wall hangs the production method of stream color powder coating

Technical field

The invention belongs to technical field of chemistry and chemical engineering, particularly relate to the production technology of white powder coating.

Background technology

Powder coating, as the one in coating type, is used in building wall in a large number.But current powder coating weathering resistance is poor, especially the coating of outdoor wall surface is through rain drop erosion and after exposing to the weather, and easy peeling comes off and variable color, needs often to repair, thus causes its use cost too high.And current coating is all straight-shade coatings, cannot once form color coating.

Summary of the invention

Goal of the invention: for above-mentioned existing Problems existing and deficiency, the object of this invention is to provide the production method that a kind of building wall hangs stream color powder coating, weathering resistance is strong, comes off with the high peeling that is not easy of the bonding force of body of wall matrix, and can form extension stream-like and mottled multi color pattern.

Technical scheme: for achieving the above object, the present invention by the following technical solutions: a kind of building wall hangs the production method of stream color powder coating, and described powder coating is made up of following component by weight: polyvinyl acetate emulsion 100 parts; BA-154 emulsion 10 ~ 50 parts; Wilkinite 5 ~ 20 parts; Tripolyphosphate calcium 2 ~ 10 parts; 2 ~ 10 parts, magnesium oxide; Kaolin 5 ~ 10 parts; Defoamer 0.1 ~ 1 part; Sanitas 0.1 ~ 1 part; Pigment 0.1 ~ 5 part; 50 ~ 150 parts, water; Wherein, the particle diameter of wilkinite and tripolyphosphate calcium is 20 ~ 200 μm, comprises the following steps:

(1) water getting 1/3 adds in reaction vessel, when stirring, adding defoamer and the sanitas of metering half amount, then adding polyvinyl acetate emulsion and BA-154 emulsion, and the above emulsion solution of stirring reaction 30min, for subsequent use;

(2) in another reaction vessel, add remaining water and start stirring, adding remaining defoamer, sanitas, kaolin and magnesium oxide successively, and stir, then adding wilkinite and tripolyphosphate calcium, stirring and at least obtain slurry after 30min;

(3) slurry that step (2) obtains is joined in the emulsion solution that step (1) obtains, and regulates Ph between 8.0 ~ 8.5, and stir.

As preferably, described wilkinite is wilkinite SD-2.

Beneficial effect: compared with prior art, the present invention has stronger basal body binding force and weather resistance; Utilize the wilkinite of appropriate particle size and tripolyphosphate calcium in spraying slurry, form particle block simultaneously, be adjusted to suitable viscosity during use thus formed on metope and hang stream, the color of final formation sagging form and spot color, have rich color, decorative effect that stereoscopic sensation is strong.

Embodiment

Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.

Embodiment 1

A kind of building wall hangs stream color powder coating, comprises following production stage:

(1) water getting 50L adds in reaction vessel, when stirring, adding the polyether siloxane copolymers of 0.5 part and the SODIUMNITRATE of 0.5 part, then adding the BA-154 emulsion of 100 parts of polyvinyl acetate emulsions and 15 parts, and the above emulsion solution of stirring reaction 30min, for subsequent use;

(2) then in another reaction vessel, add remaining water and start stirring, add 5 kaolin and 6 parts of magnesium oxide successively again, and high-speed stirring forms uniform suspension liquid, then add the tripolyphosphate calcium of 12 parts wilkinite SD-2 and 3 part, stir and at least obtain slurry after 30min; The particle diameter of wilkinite and tripolyphosphate calcium is 20 ~ 200 μm,

(3) slurry that step (2) obtains is joined in the emulsion solution that step (1) obtains, and regulates Ph between 8.0 ~ 8.5, and stir.

Embodiment 2

A kind of building wall hangs stream color powder coating, comprises following production stage:

(1) water getting 50L adds in reaction vessel, when stirring, adding the polyether siloxane copolymers of 0.2 part and the SODIUMNITRATE of 0.2 part, then adding the BA-154 emulsion of 100 parts of polyvinyl acetate emulsions and 20 parts, and the above emulsion solution of stirring reaction 30min, for subsequent use;

(2) then in another reaction vessel, add remaining water and start stirring, add the polyether siloxane copolymers of 0.5 part, the SODIUMNITRATE of 0.5 part, 8 parts of kaolin and 5 parts of magnesium oxide successively again, and high-speed stirring forms uniform suspension liquid, then add the tripolyphosphate calcium of 12 parts wilkinite SD-2 and 3 part, stir and at least obtain slurry after 30min; The particle diameter of wilkinite and tripolyphosphate calcium is 20 ~ 200 μm,

(3) slurry that step (2) obtains is joined in the emulsion solution that step (1) obtains, and regulates Ph between 8.0 ~ 8.5, and stir.

Claims (2)

1. building wall hangs a production method for stream color powder coating, and described powder coating is made up of following component by weight: polyvinyl acetate emulsion 100 parts; BA-154 emulsion 10 ~ 50 parts; Wilkinite 5 ~ 20 parts; Tripolyphosphate calcium 2 ~ 10 parts; 2 ~ 10 parts, magnesium oxide; Kaolin 5 ~ 10 parts; Defoamer 0.1 ~ 1 part; Sanitas 0.1 ~ 1 part; Pigment 0.1 ~ 5 part; 50 ~ 150 parts, water; Wherein, the particle diameter of wilkinite and tripolyphosphate calcium is 20 ~ 200 μm, it is characterized in that comprising the following steps:

(1) water getting 1/3 adds in reaction vessel, when stirring, adding defoamer and the sanitas of metering half amount, then adding polyvinyl acetate emulsion and BA-154 emulsion, and the above emulsion solution of stirring reaction 30min, for subsequent use;

(2) in another reaction vessel, add remaining water and start stirring, adding remaining defoamer, sanitas, kaolin and magnesium oxide successively, and stir, then adding wilkinite and tripolyphosphate calcium, stirring and at least obtain slurry after 30min;

(3) slurry that step (2) obtains is joined in the emulsion solution that step (1) obtains, and regulates Ph between 8.0 ~ 8.5, and stir.

2. building wall hangs the production method of stream color powder coating according to claim 1, it is characterized in that: described wilkinite is wilkinite SD-2.