CN1062152A

CN1062152A - Polystyrene building painting

Info

Publication number: CN1062152A
Application number: CN 90105988
Authority: CN
Inventors: 陈兆政; 陈东元
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-12-04
Filing date: 1990-12-04
Publication date: 1992-06-24

Abstract

What the present invention provided is a kind of building coating and technology---polystyrene building painting and technology that is used for brushing cement wall surface etc.Belong to industrial chemicals.It mainly contains PS (or EPS), styrene-butadiene rubber(SBR), 501 oil, heavy benzene, dimethylbenzene, propylene dichloride, UV-9 composition.Its technology mainly divides propylene dichloride pre-treatment and dimethylbenzene, 501 oil to dissolve at normal temperatures, filters under reduced pressure then; UV-9, styrene-butadiene rubber(SBR) and heavy benzene are dissolved under ambient temperature and moisture, and stirring finished product at last is mixed.The present invention has good water-fast, mildew-resistant, protection against corrosion and wear resisting property, stronger antiseep and weather resistance.Raw material is easily purchased, technology is simple, cost is low.

Description

Polystyrene building painting

What the present invention proposed is a kind of polystyrene building painting.Belong to industrial chemicals.

Existing polystyrene excellent performance, but the matter rigidity is crisp, not good because of sticking power to material, the coefficient of expansion is small, limited its widespread use in coating etc.

Design philosophy of the present invention is dissolved in for making full use of polystyrene that the characteristic of some aromatic hydrocarbons, hydrochloric ether, ester and ketone and these solvents again more has volatile characteristic, select suitable resin and toughner to be dissolved in the solvent altogether with polystyrene, become big, diffusion profile by in liquid phase, move acceleration, degree of freedom of molecule, thereby realize that the film forming visco-elasticity of polystyrene obtains reinforcement, reaches technical requirements that adapts to or meet coating etc. and the purpose of widening its purposes scope.

Technical solution of the present invention: polystyrene building painting, its composition and proportioning: PS(or EPS) account for 16-30%, styrene-butadiene rubber(SBR) accounts for 1-3%, 501 oil account for 3.5-5%, and heavy benzene accounts for 9-20%, and dimethylbenzene accounts for 11-20%, propylene dichloride 20-40%, UV-9 accounts for 0.5-1%, and each is organized weight and is 100%.

The manufacture craft of polystyrene building painting, the pre-treatment of A, propylene dichloride: first skim is swum, and adds 0.5-1% amount lime carbonate neutralization (can increase consumption as one sees fit as the acid number height) then, adds 2% amount alukalin decolouring, be stirred well to pH value and be at 6～7 o'clock and filter, filtrate is stored standby; B, weighing styrene-butadiene rubber(SBR) UV-9 and heavy benzene place container, leave standstill stirred solution about two hours; C, weighing PS, propylene dichloride, dimethylbenzene and 501 oil place container, leave standstill 6-8 hour stirring and dissolving, filtration, as then need not leaving standstill with EPS pellet or eps foam plastic refuse, but it can produce a large amount of bubbles when under agitation dissolving, and should spare no effort to EPS on a small quantity for preventing that solution from overflowing with bubble; D, (B) solution under agitation added in (C) filtrate stirred approximately 20-30 minute, get product after the can; Can add dyestuff or adding in E, the finished product dyes pigment, auxiliary agent and filler and obtains two series product.

Form by mixed systems such as polystyrene and butane rubber, auxiliary agent, solvents, be faint yellow viscous liquid, belong to volatile paint.This product all has good sticking power to various materials such as cement, masonry, glass, metal, timber, paper, textiless, physical and chemical performances such as film forming has kept the original water white transparency of PS resin basically, odorless, tasteless is nontoxic, physical strength is high, electrical insulating property is good, waterproof is corrosion-resistant, and significantly improved ductility.

Embodiment:

Get PS(or EPS) 0.16, styrene-butadiene rubber(SBR) 0.01,501 oil 0.035, heavy benzene 0.09, dimethylbenzene 0.20, UV-90.005, propylene dichloride 0.50.Make as stated above.Illustrate a bit, promptly should be in 400-600(vacuum tightness under the reduced pressure)/mercury column filters.

This product is after tested: color (iron cobalt colorimeter)＜No. 2; Kinematic viscosity is 42.5 lis of seas; Dry 4 hours of 60 ℃ of thermostat containers, the film forming non-volatile content is 20.8%.

In 19 ℃ of temperature, in the sun with this product brushing cement wall surface, yellow paint metope, slide, wood chip, aluminium flake, tinplate sheet, newsprint, wood-free writing paper, textiles (chemical ﹠ blended fabric and glass cloth), surface about 40～50 minutes of time of drying of fingertip, film forming water white transparency, very even.To original paint and painting color, its color and luster degree can be enhanced about more than once, and through bimestrial observation, its delustering is not obvious.After paper and fabric were covered with paint, lacquer, colour wash, etc. drying, waterproof effect was rather good, and intensity also improves thereupon greatly.

To wood chip, aluminium flake, the tinplate sheet of film forming after 24 hours, make straight line and thread-shaped cut with the major part needle point, observe under 10 times of magnifying glasses: the cut periphery is fluffing slightly only, with the naked eye then is difficult for finding.

To stop 30 seconds in sheet glass, aluminium flake, tinplate sheet immersion this product, place the vertical drip-dry in ventilation, twice totally.Get 0.1NH ₂SO ₄Each three bottles of solution, 0.1NKOH solution and 3%NaCL solution, every bottle of 100ml puts into three kinds of samples respectively.Soak week back taking-up.Rinse well with tap water, dry back is observed with 10 times of magnifying glasses, nine equal no changes of coated film of sample, and the corrosion vestige is not seen on aluminium flake and tinplate sheet surface.

The present invention is water-fast, mildew-resistant, protection against corrosion and wear resisting property are good and have antiseep, estimates that weather resistance can reach more than 10 years.

Purposes of the present invention can be widely used in, and covering with paint public, the civil building metope is protected, and is particularly useful for hygrothermal environment such as kitchen, toilet, bathroom, damp and hot workshop, vault etc., reaches the corrosionproof protection of salt producing region, soda acid workshop building wall.

Also available this product is made intermediate, the in-depth converted products.

Claims

1, polystyrene building painting, it is characterized in that its composition and proportioning: PS (or EPS) accounts for 16-30%, and styrene-butadiene rubber(SBR) accounts for 1-3%, 501 oil account for 3.5-5%, and heavy benzene accounts for 9-20%, and dimethylbenzene accounts for 11-20%, propylene dichloride accounts for 20-40%, and UV-9 accounts for 0.5-1%, and each is organized weight and is 100%.

2, the manufacture craft of polystyrene building painting, it is characterized in that the pre-treatment of A, propylene dichloride: first skim is swum, add 0.5-1% amount lime carbonate neutralization (can increase consumption as one sees fit) then as the acid number height, add 2% amount alukalin decolouring, be stirred well to pH value and be at 6～7 o'clock and filter, filtrate is stored standby; B, weighing styrene-butadiene rubber(SBR) UV-9 and heavy benzene place container, leave standstill stirring and dissolving about two hours; C, weighing PS, propylene dichloride, dimethylbenzene and 501 oil place container, leave standstill 6-8 hour stirring and dissolving, filtration, as then need not leaving standstill with EPS pellet or eps foam plastic refuse, but it can produce a large amount of bubbles when under agitation dissolving, and should spare no effort to EPS on a small quantity for preventing that solution from overflowing with bubble; D, (B) solution under agitation added in (C) filtrate stirred approximately 20-30 minute, get product after the can; Can add dyestuff or adding in E, the finished product dyes pigment, auxiliary agent and filler and obtains two series product.