CN101851449A

CN101851449A - Fluorine-contained high-chlorinated polyethylene coating

Info

Publication number: CN101851449A
Application number: CN 201010202212
Authority: CN
Inventors: 濮阳楠; 金如朋; 金辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-18
Filing date: 2010-06-18
Publication date: 2010-10-06

Abstract

The invention discloses technical conditions of a fluorine-contained high-chlorinated polyethylene coating (i.e. GFVC: Glass-Fiber Vinyl Chloride), such as a formula, a preparation process and the like. The coating is prepared from a component A and a component B, wherein the component A comprises more than ten substances, and the component B is an isocyanate adduct curing agent. Before use, the GFVC is prepared from the component A and the component B in a weight ratio of 12:1 and has the advantages of strong adhesion, long service life, excellent corrosion resistance, good weatherability, oil resistance, waterproofing, high performance price ratio, simple and convenient construction, low maintenance and the like, is widely used in the fields of metallurgy, ports, petroleum, chemical engineering, pharmacy, food and the like as a protection coating of the corrosive parts of a concrete base, a metal member, production equipment, chemical pipeline, a bridge, ship and the like, is popular among users and obtains favorable economic and social benefits.

Description

Fluorine-containing high-chlorinated polyethylene coating

One, technical field

The invention belongs to industrial antisepsis erosion technical field of coatings, is a kind of pair of solvent type fluorine-containing high-chlorinated polyethylene coating of component (GFVC).

Two, technical background

Existing market protective system commonly used has perchlorethylene paint, high-chlorinated polyethylene coating, the red polyvinyl chloride (PVC) coating of PF-01 firefly, coating such as chlorinated rubber, they respectively have advantage, the solidity to corrosion that has is better, the kindliness that has is better etc., but it is thin and crisp that ubiquity paint film, sticking power is not high, brushing road number is many, work-ing life is short, shortcomings such as the erosion resistance that has is not good enough, based on the existence of these problems, a kind of excellent corrosion-proof performance that has has been developed for magnificent paint company forever admittedly in Zhejiang, adapts to wide, easy construction, the new anti-corrosion coating of long service life---fluorine-containing high-chlorinated polyethylene coating (GFVC), and obtained user's favorable comment, obtain good social benefit and economic benefit.

Three, summary of the invention

Not good enough for solving in the protective system ubiquitous corrosion resisting property, the single layer coating thinner thickness, film crisp and problems such as life-span weak point, this new coating has been developed for magnificent paint company forever admittedly in Zhejiang, with corrosion resistance excellent, steady chemical structure, the fluorochemicalss that physical and mechanical property is outstanding etc. are introduced in the high-chlorinated polyethylene coating, are developed into one and have excellent chemical stability and shock resistance, easy construction, the fluorine-containing high-chlorinated polyethylene coating that coating life is long, this coating is by first, second two components are formed, and the weight percent prescription of fluorine-containing high-chlorinated polyethylene coating first component is: HCPE 13-18, supervinyi chloride resin 3-7, dioctyl phthalate (DOP) 3-7, fluorocarbon resin 4-6, titanium dioxide 15-20, ground barium sulfate 5-10, talcum powder 3-7, anionic carboxylic acid polymeric dispersant 0.5-1, organobentonite 0.5-1, fluorine-carbon modified polysiloxane 0.2-0.4, dimethylbenzene 25-30, pimelinketone 4-6, N-BUTYL ACETATE 3-7; Fluorine-containing high-chlorinated polyethylene coating component B is an isocyanate addition product, before the use, by weight, and first: second=preparation in 12: 1, after stirring, promptly make fluorine-containing high-chlorinated polyethylene coating.

One preferred embodiment in, the weight percent prescription of fluorine-containing high-chlorinated polyethylene coating first component is; HCPE 15, supervinyi chloride resin 5, dioctyl phthalate (DOP) 5, fluorocarbon resin 5, titanium dioxide 18, ground barium sulfate 8, talcum powder 5, anionic carboxylic acid polymeric dispersant 0.7, organobentonite 1, fluorine-carbon modified polysiloxane 0.3, dimethylbenzene 27, pimelinketone 5, N-BUTYL ACETATE 57.

The present invention has given full play to the characteristic of each component materials, carries out modification mutually, forms the optimum formula design, fluorocarbon resin, supervinyi chloride resin etc. about the adding of component improved coating solidity to corrosion, coat-thickness and with the binding ability of metallic matrix; Introducings such as fluorine-carbon modified polysiloxane, organobentonite have improved the sedimentation and the air bubble problem of coating; Titanium dioxide and anionic carboxylic acid polymkeric substance can improve the dispersion and the apparent property of coating, because preferred this optimum design, to making fluorine-containing high-chlorinated polyethylene coating have excellent chemical stability, weathering resistance, application property and with the characteristics such as bonding force of matrix, be ideal protective system in chemical industry, oil, food, pharmacy and the construction work, knot embodiment elaborates to the present invention below.

Embodiment one

1, earth rubber preparation:

Be made into 9 parts of earth rubbers after stirring in 1 part of throwing to 8 part dimethylbenzene of organobentonite;

2, mixed resin solution preparation:

With 19 parts of dimethylbenzene, 5 parts of pimelinketone, 5 parts of N-BUTYL ACETATEs, 5 parts of supervinyi chloride resins, 15 parts of HCPE, 5 parts of phthalic acids two are sad, and 5 parts of fluorocarbon resins are made into 59 parts of mixed resin solutions after stirring;

3, fluorine-containing high-chlorinated polyethylene coating first component preparation:

With 0.7 part of anionic carboxylic acid polymeric dispersant and 9 parts of earth rubbers that prepared and 59 parts of mixed resin solutions stir back and 18 parts of titanium dioxides, after 8 parts of ground barium sulfates and 5 parts of talcum powder stir, after grinding, sand mill adds 0.3 part of fluorine-carbon modified polysiloxane again and an amount of colorant is made fluorine-containing high-chlorinated polyethylene coating first component after mixing;

4, use before fluorine-containing high-chlorinated polyethylene coating first component and component B isocyanate addition product with weight ratio, first: second=12: 1 is made into fluorine-containing high-chlorinated polyethylene coating.

Embodiment two

1, earth rubber preparation:

Organobentonite 0.5-1 part thrown be made into 9 parts of earth rubbers after stirring to the dimethylbenzene of 6.5-8 part;

2, mixed resin solution preparation:

With 17-22 part dimethylbenzene, 4-6 part pimelinketone, 3-5 part N-BUTYL ACETATE, 3-7 part supervinyi chloride resin, 13-18 part HCPE, 3-7 part phthalic acid two is sad, and 4-6 part fluorocarbon resin is made into mixed resin solution after stirring;

After 0.5-1 part anionic carboxylic acid polymeric dispersant and the earth rubber that has prepared and mixed resin solution stirred again with 15-20 part titanium dioxide, 5-10 part ground barium sulfate, after 3-7 part talcum powder stirs, after sand mill grinds, add fluorine-carbon modified polysiloxane of 0.2-0.4 part and an amount of colorant again, after mixing, make fluorine-containing high-chlorinated polyethylene coating first component;

4, use preceding fluorine-containing high-chlorinated polyethylene coating first component and component B isocyanate addition product with weight ratio,

First: second=12: 1 is made into fluorine-containing high-chlorinated polyethylene coating.

Embodiment three

1, earth rubber preparation:

0.8 organobentonite thrown be mixed with earth rubber after stirring to 7.2 parts of dimethylbenzene;

2, mixed resin solution preparation:

With 19.8 parts of dimethylbenzene, 5.2 parts of N-BUTYL ACETATEs, 15 parts of HCPE, 5 parts of dioctyl phthalate (DOP)s are promptly made mixed resin solution after 10 parts of Synolac stir;

With 0.7 part of anionic carboxylic acid polymeric dispersant and earth rubber that has prepared and mixed resin solution, 18 parts of titanium dioxides, 8 parts of ground barium sulfates, 5 parts of talcum powder, 5 parts of fluorine ferrophosphorus stir after sand mill adds 0.3 part of fluorine-carbon modified polysiloxane and an amount of colorant after grinding again, promptly make fluorine-containing high-chlorinated polyethylene coating first component after stirring;

4, use before fluorine-containing high-chlorinated polyethylene coating first component and component B isocyanate addition product with weight ratio:

The key technical indexes of coating

Viscosity (being coated with-4 glasss), S 〉=50

Fineness, μ m≤55

Solid content, % 〉=30

Do solid work the time, h≤24

Kindliness, mm 1

Sticking power, level≤2

Shock strength, Kg-cm 〉=50

Solidity to corrosion: it is non-foaming to soak 48h in 10% hydrochloric acid, 10% sulfuric acid, 10% sodium hydroxide solution, does not come off stainless lacquer.

Claims

1. the novel pair of fluorine-containing high-chlorinated polyethylene coating of component of an anticorrosion usefulness, this coating is by first, second two components are formed, the first component is formulated by picking up surplus kind of material, component B is an isocyanate addition product, it is characterized in that fluorine-containing high-chlorinated polyethylene coating first weight percentages prescription is: HCPE 13-18 supervinyi chloride resin 3-7, dioctyl phthalate (DOP) 3-7, fluorocarbon resin 4-6, titanium dioxide 15-20, ground barium sulfate 5-10, talcum powder 3-7, anionic carboxylic acid polymeric dispersant 0.5-1, organobentonite 0.5-1, fluorine-carbon modified polysiloxane 0.2-0.4, dimethylbenzene 25-30, pimelinketone 4-6, N-BUTYL ACETATE 3-7.

2. fluorine-containing high-chlorinated polyethylene coating according to claim 1 is characterized in that, fluorine-containing high-chlorinated polyethylene coating first weight percentages prescription is: HCPE 15, supervinyi chloride resin 5, dioctyl phthalate (DOP) 5, fluorocarbon resin 5, titanium dioxide 18, ground barium sulfate 8, talcum powder 5, anionic carboxylic acid polymerization material dispersion agent 0.7, organobentonite 1, fluorine-carbon modified polysiloxane 0.3, dimethylbenzene 27, pimelinketone 5, N-BUTYL ACETATE 5.

3. according to claim 1,2 described fluorine-containing high-chlorinated polyethylene coatings, it is characterized in that, the blending process of fluorine-containing high-chlorinated polyethylene coating first component divided for three steps, the first step, earth rubber preparation: in 1 part of throwing to 8 part dimethylbenzene of organobentonite of stipulating in the above-mentioned prescription, and the speed high-speed stirring of changeing with per minute 800 15-20 minute, promptly be made into 9 parts of earth rubbers, standby; The preparation of the second step mixed resin solution: earlier with 19 parts of dimethylbenzene and 5 parts of pimelinketone, 5 parts of N-BUTYL ACETATEs mix, and the speed stirring at low speed of changeing with per minute 300 1-3 minute, drop into 5 parts of supervinyi chloride resins again, 15 parts of HCPE high-speed stirring 30-40 minute, make it be dissolved into transparent agranular glue, drop into 5 parts of dioctyl phthalate (DOP)s and 5 parts of fluorocarbon resins again, after stirring at low speed 10-15 minute, promptly make 59 parts of mixed resin solutions; The 3rd step, the preparation of fluorine-containing high-chlorinated polyethylene coating first component: 0.7 part of anionic carboxylic acid polymeric dispersant and 9 parts of earth rubbers having prepared are thrown to 59 parts of mixed resin solutions that prepared, drop into 18 parts of titanium dioxides after the high-speed stirring again, 8 parts of ground barium sulfates and 5 parts of talcum powder, continue to stir after 10-15 minute by being pumped to sand mill, grind 3-4 all over to coating fineness during less than 55 μ m, add 0.3 part of fluorine-carbon modified polysiloxane at last, promptly be mixed with fluorine-containing high-chlorinated polyethylene coating first component after stirring; Fluorine-containing high-chlorinated polyethylene coating component B is an isocyanate addition product, before using by weight first: after second=12: 1 stirs, promptly make fluorine-containing high-chlorinated polyethylene coating.