CN1341688A - Imitation metal fluorocarbon paint - Google Patents

Abstract

The imitation metal fluorocarbon paint includes component A containing fluorocarbon resin (53%), metal pigment paste, wetting dispersing agent, cellulose acetate-butyrate, colour paste, antisettling sagging agent and solvent and component B containing hexamethylene diisocyanate tripolymer. Their mixing ratio is A:B=10-14:1, according to the above-mentioned mixing ratio, the imitation metal fluorocarbon paint can be made up. It possesses the following advantages: 1. it can be solidified and film-formed at normal temp.; 2. it can be directly spray-coated on the surface of external wall of cement building; 3. its construction is simple, its cost is 1/5 of that of baked aluminium curtain wall; and 4. said paint not only can be used for decorative protection of wall body but also can be used in the fields of steel and iron structure, wooden product and plastics.

Description

Imitation metal fluorocarbon paint

(1) technical field:

The present invention is a kind of imitation metal fluorocarbon paint.

(2) background technology:

At the wall face of Highrise buildings, adopt metallic aluminium curtain wall link plate to rise more and decorate and provide protection, to guarantee the anti-aging work-ing life more than 20 years.Aspect weathering resistance, require very high as uviolizing, wind erosion, efflorescence, be full of cracks, atmospheric corrosion resistance etc.The lacquer that can reach this high-weatherability has only fluorocarbon baking varnish.And its use constructional method of fluorocarbon baking varnish; be earlier aluminium sheet by engineering drawing machine-shaping; carry out the fluorocarbon baking varnish spraying then; plastify friendship switch film forming down 200～235 ℃ of high temperature; transport to the building site behind the pasting protective film; be installed on the metal rank frame, this way complex procedures cost height has influenced the application of fluorocarbon baking varnish.

(3) summary of the invention:

The objective of the invention is to solve above-mentioned existing problem, provide a kind of cost low, the cement works exterior wall surface that can cross at sealing treatment is the imitation metal fluorocarbon paint of spraying directly.

The present invention is achieved in that the basic resin of lacquer is with trifluorochloroethylene glycol monomethyl propenyl ether (or vinylcarbinol) vinyl acetate and organic olefin(e) acid is quarternary copolymerized or the hydroxyl fluorocarbon resin of organic acid monomer multi-component copolymer, tramp m. pigment (un-suspension powdered aluminium, copper powder, pearlescence) functional aid such as wetting dispersing agent, anti-settling agent, metallic pigment align flow agent, solvent composition as component one, are to be the two-pack ambient cure imitation metal fluorocarbon paint of solidifying agent as component two with the aliphatic diisocyanate.Its component and proportioning, by weight as follows:

Component one

1, fluorocarbon resin (53%) 40-65

2, metallic pigment slurry (aluminum paste or pearlescence slurry) 3-15

3, moisten warm dispersion agent (Byk161 or EFKA4047) 0.1-0.3

4, CAB (20%) cellulose acetate butyrate 8-15

5, painted mill base (transparent pigment) 0-5

6, anti-precipitation sagging agent (Byk410) 0.25-0.5

7, solvent (N-BUTYL ACETATE, dimethylbenzene, oxytol acetate) 10-35

Component two

Hexamethylene diisocyanate trimer (being the HDL biuret)

Proportioning: component one: component two=10-14: 1

The imitation metal fluorocarbon paint of producing by above-mentioned component and proportioning has following advantage:

1, ambient cure film forming;

2, can directly spray at the cement works exterior wall surface that sealing treatment is crossed;

3, construction is simple, and cost is a baking-type aluminum screen wall 1/5;

4, therefore the protectiveness of ornamental paint film, becomes the aluminum screen wall link plate that involves great expense, compound substitute of moulding aluminium sheet near baking-type aluminum screen wall link plate effect;

5, easy to repair, recoatability is good;

6, this kind coating not only is applied to do on the body of wall decorate to protect and more can be applied to aspects such as iron structure, woodenware, plastics.

(4) specific embodiment:

Instantiation 1,2,3 sees Table one: table one

Sequence number	Material name	1	2	3
					1	Fluorocarbon resin (53%)	40	58.6	65
2	Aluminum paste	3.5	11.72	15
					3	CAB (20%) cellulose	8	11.72	15
4	BYK410 (extension agent)	0.25	0.25	0.4
					5	Dimethylbenzene (solvent)	4	5	7
6	BAC (butyl acetate)	6.4	11.72	15
					7	The coloring pigment slurry	0.8	0.1	1
8	Wetting dispersing agent	0.1	0.2	0.3
						Component one: component two	1∶10	1∶12	1∶14

Performance measurement sees Table two:

Table two performance measurement: (thickness 15 ± μ m)

Sequence number	Title	1	2	3
					1	The adhesive force level	1	1	1
2	Hardness (pencil)	3H	3H	3H
					3	Impact 50cm	By	By	By
4	Pliability≤1mm	1	1	1

The preparation method of above-mentioned imitation metal fluorocarbon paint:

1, metallic pigments powder slurry gives dispersion. As getting material by example (1) component proportioning.

As get aluminum paste (non-floating type) 3.5kg, with the solvent of equivalent, get dimethylbenzene 1.5kg, butyl acetate 2kg and wetting dispersing agent Byk161 0.1kg, give infiltration, adding the 10-20% that need add the fluorocarbon resin amount is that 4kg-8kg stirs:

2, the imitative metallic paint of conduct after remaining fluorocarbon resin and each component stir in prescription The material base-material;

3, the concentrate that gives after the dispersion treatment with the above-mentioned first step joins under stirring at low speed In the base-material of second step, stir about was guaranteed to be uniformly dispersed in 15 minutes, adjusted and wrapped after viscosity is filtered Dress up and be component one.

4, press the percentage composition of fluorocarbon resin hydroxyl, by OH/NCO=1: 1.1 measure solid Change the consumption of agent component two, the curing agent hexamethylene diisocyanate trimer; The weight ratio group Divide one: component two=10: 1; Component one is mixed all by 10: 1 weight ratios with component two during use Spraying after even.

5, metallic pigments slurries taken amount is according to decorative effect, as the non-floating type that glistens can add 3～6%, and Metal-like type addition is advisable 10～13%.

Claims (1)

1, a kind of imitation metal fluorocarbon paint is characterized in that: its component and proportioning, by weight as follows:

Component one

1, fluorocarbon resin (53%) 40-65

2, metallic pigment slurry (aluminum paste or pearlescence slurry) 3-15

3, moisten warm dispersion agent (Byk161 or EFKA4047) 0.1-0.3

4, CAB (20%) cellulose acetate butyrate 8-15

5, painted mill base (transparent pigment) 0-5

6, anti-precipitation sagging agent (Byk410) 0.25-0.5

7, solvent (N-BUTYL ACETATE, dimethylbenzene, oxytol acetate) 10-35

Component two

Hexamethylene diisocyanate trimer (being the HDL biuret)

Proportioning: component one: component two=10-14: 1.