CN1106851A

CN1106851A - Compound insulation and fire-proof paint

Info

Publication number: CN1106851A
Application number: CN 94117708
Authority: CN
Inventors: 刘小兵
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-07
Filing date: 1994-11-07
Publication date: 1995-08-16

Abstract

This invention is a composite thermo-insulating fire-proof coating composition composed of mineral wool, rock wool, light aggregate, kaolin, calcium hydroxide, sodium silicate, aluminium phosphate, styrene-acrylate emulsion, sodium dodecyl benzene sulfonate and water. It has multiple functions, high-temp. resistance, convenient construction, low cost, little investment, and can be widely applied to industrial and civil heat-insulating, sound-absorption, fire-proof and corrosion-proof works.

Description

Compound insulation and fire-proof paint

The present invention relates to a kind of compound insulation and fire-proof paint composition that contains silicate and properties-correcting agent.

At present, in the existing composite heat-insulating coating, ubiquity facility investment huge (hundreds of thousands of to is more than 1,000,000), technology is numerous and diverse, production cycle long (tens hours), product not fire-resistant (maximum operation (service) temperature is 700-800 ℃), the implementation cost height, not anticorrosion, the shortcoming of resistant to chemical media not.As disclosed a kind of silicate thermal insulation coatings in the Chinese patent 87102864, its objective is provides a kind of efficient, economical, do not pollute, construction just, energy-conservation thermal insulation coatings, must increase temperature (95-100 ℃) during production, time long (more than 24 hours), not fire-resistant (700 ℃ of maximum operation (service) temperatures): disclosed composite heat insulation coating purpose is to provide a kind of production technique simple among the Chinese patent publication number 1080939A, equipment is few, cost is low, the thermal insulation coatings of efficient, constitute component asbestos are arranged, diatomite, high-temp glue, perlite, china clay, unslaked lime and enhancing cotton etc., but because of its PH=7-8, there is not stronger alkalescence, so easily protecting makes metallic conduit return rust, and product itself is not water-fast, acid and alkali-resistance not, oil resistant not, need there be supporting hydrophober to smear the goods top layer, just can anti-above-mentioned chemical mediator (test method of the QB610103-Q18.1231-92FBT series of seeing Appendix composite heat-insulating coating defined), maximum operation (service) temperature also has only 800 ℃, minimum use temperature-25 ℃, and according to embodiment, can't make in the qualified product technology at all, production technique is numerous and diverse, and add excessive " fast T " among the embodiment and reach " silicone oil ", making cost be doubly on the one hand improves, on the other hand because of the excessive adding of organism, make product in drying course, have strong smell and smog, and heat insulating be there is no too big benefit, as for the excessive adding of calcium oxide, the then cohesive force of havoc product and intensity greatly.

The purpose of this invention is to provide that a kind of function is many, performance is excellent, production technique is easy, less investment, cost are low, the compound insulation and fire-proof paint composition and the manufacture method of applied range, toxicological harmless pollution, easy construction, long service life.

Material component of the present invention following (weight %): mineral wool 7-20%, rock wool 2-8%, aglite 3-8%, kaolin 7-10%, calcium hydroxide 0-3%, water glass 10-40%, aluminum phosphate 0.1-5%, benzene emulsion 0.1-5%, Sodium dodecylbenzene sulfonate 0.01-5%, water surplus.

More than all raw materials be technical grade, it is 3.2 37% solution that water glass is selected modulus for use, Sodium dodecylbenzene sulfonate is selected 30% technical grade for use, kaolin is selected 350 powder materials for use.

The adding of the excessive mineral wool of the present invention has reduced the products material cost on the one hand, has increased the physical mechanical strength of product on the other hand, consumption 7-20%, preferred 10-15%; Rock wool can increase product thermal and insulating performance and tensile strength, consumption 2-8%, preferred 2-5%; Aglite can be selected hollow haydite, pearlstone or flyash for use, preferred pearlstone, and it can improve the heat insulating and the resistance to elevated temperatures of product, consumption 3-8%, preferred 4-6%; Kaolin is because of containing hydroxyl, and to improving the cohesive force of product, sticking power and strong hardness have vital role, and because of its fusing point height (1785 ℃), so also helpful to the refractoriness that improves product, consumption 7-10%, preferred 10%; Calcium hydroxide, resistance of aging in the time of can improving the product hot operation, consumption 0-3%, exceeding this scope can influence the product adhesive property.Preferred 0.05-1%; Water glass liquid is made the tackiness agent major ingredient at this, and is nonpoisonous and tasteless, high temperature resistant, and because of being alkalescence, so metal works is had the passivation preservative activity, consumption 10-40%, preferred 15-30%; Aluminum phosphate is made solidifying agent, the properties-correcting agent of sodium silicate adhesive at this, itself also is a kind of tackiness agent, consumption 0.1-5%, preferred 0.5-2%; Benzene emulsion is made the properties-correcting agent of sodium silicate adhesive at this, can effectively improve the water tolerance of product, resistance to cracking and sticking power, because of benzene emulsion is water miscible, can be miscible with sodium silicate aqueous solution preferably, make product performance stable, consumption is 0.1-5%, preferred 0.5-2%; Sodium dodecylbenzene sulfonate, make permeate agent at this, whipping agent, the dioctyl sodium sulfosuccinate that alternative valency is high (fast T), and seepage force is not poor, because of it is electronegative negatively charged ion, the cohesive force of raising product to metalwork also benefited, and it is inexpensive, helps reducing cost, consumption 0.01-5%, preferred 0.5-2%; Wet concentration gets final product with industrial tap water.

Production technique: earlier Sodium dodecylbenzene sulfonate is dissolved in part interior water, mineral wool, rock wool are put into Sodium dodecylbenzene sulfonate solution to be soaked 30 minutes, putting kaolin, calcium hydroxide, water glass, aluminum phosphate, benzene emulsion again is mixed together in agitated pool, stirred 30 minutes with 500-1000 rev/min stirring velocity, add aglite at last and mix thoroughly and get final product.1-2 hour whole production cycle got final product.

The key of success of the present invention is to have added benzene emulsion sodium silicate adhesive is carried out modification, water tolerance, resistance to cracking and the sticking power of product have been significantly improved, and a small amount of dodecylbenzene sulphur sodium replaces traditional dioctyl sodium sulfosuccinate, not only improve perviousness and foaminess, but also reduced cost, in addition, the adding of trace calcium hydroxide has significantly improved ageing resistance in the product hot operation state.

Below in conjunction with embodiment the present invention is described in further detail.

Embodiment 1(weight %):

Mineral wool 15%, rock wool 2%, pearlstone 5%, kaolin 10%, calcium hydroxide 1%, water glass liquid (n=3: 2) 15%, aluminum phosphate 1%, benzene emulsion 1%, Sodium dodecylbenzene sulfonate 0.5%, water 49.5%, manufacture craft is dissolved in Sodium dodecylbenzene sulfonate in part interior water earlier, and mineral wool, rock wool are put into Sodium dodecylbenzene sulfonate solution immersion 30 minutes, puts kaolin, calcium hydroxide, water glass, aluminum phosphate, benzene emulsion again and is mixed together in agitated pool, stirred 30 minutes with 500-1000 rev/min stirring velocity, add aglite at last and mix thoroughly and get final product.1-2 hour whole production cycle got final product.Product is the even lotion of white thickness.

Embodiment 2(weight %):

Mineral wool 10%, rock wool 5%, flyash 4%, kaolin 10%, calcium hydroxide 0.05%, water glass liquid (n=3.2) 20%, aluminum phosphate 1.5%, benzene emulsion 2%, Sodium dodecylbenzene sulfonate 1%, water 46.45%.

Manufacture craft: with embodiment 1, product is the even lotion of grey thickness.

The present invention compared with prior art has following advantage:

1, function many (insulation, heat insulation, fire prevention, sound absorption, anticorrosion, radiation proofs);

2, production technology easy (direct physical is composite under the normal temperature and pressure gets final product);

3, performance is excellent (detects through State Bureau of Building Materials Industry's hard insulating material Product Quality Verification Centers, all technical all reaches the Q/HNHGOO1-94 standard, wherein maximum operation (service) temperature breaks through 1000 ℃ of high pointes first, minimum serviceability temperature breaks through-40 ℃ of high pointes first, resistant to chemical media has accomplished not to be coated with hydrophober first also can have superperformance, and thermal conductivity factor is 0.0745W/m.k, and antiseptic property is good, cohesive force is 1.73 times of standard value, and cubical contraction has reduced more than one times than standard value);

4, small investment (equipment investment is the 1-100 of traditional insulation material plant investment);

5, applied range (is used for various device and the pipelines such as chemical industry, metallurgy, electric power, pharmacy, boiler, heat supply network, be specially adapted to special-shaped equipment and pipeline that traditional insulation material is difficult to be competent at, such as the equipment of spherical tank, valve body, special-shaped reducer pipe, rotary body and the load that is hit, also can be used for civil buildings and make materials for wall);

6, easy construction: only disposable the smearing of need forms, and can dry or normal temperature self-drying, need not stop production, and need not wrap up twining, and do not add any subsidiary material;

7, materials are economized, low (because of the construction thin thickness, and as long as raw materials cost is 400 yuan of cubic meters, so unit area building cost is than the low 30-80% of traditional lagging material for cost;

8, use and storage period long (because of not containing excessive organism, so storage property is stable, not mouldy, be traditional lagging material 2-5 times work-ing life).

Claims

1, a kind of compound insulation and fire-proof paint composition is characterized in that composition is made up of mineral wool, rock wool, aglite, kaolin, calcium hydroxide, water glass, aluminum phosphate, benzene emulsion, Sodium dodecylbenzene sulfonate and water.

2, by the described compound insulation and fire-proof paint composition of claim 1, it is characterized in that the shared weight percent of each component is: mineral wool 7-20%; Rock wool 2-8%; Aglite 3-8%; Kaolin 7-10%; Calcium hydroxide 0-3%; Water glass 10-40%; Aluminum phosphate 0.1-5%; Benzene emulsion 0.1-5%; Sodium dodecylbenzene sulfonate 0.01-5%; Water surplus.

3,, it is characterized in that the aglite of composition can be hollow make pottery material, pearlstone, flyash by the described compound insulation and fire-proof paint composition of claim 2.

4,, it is characterized in that preferred pearlstone in the aglite of composition by the described compound insulation and fire-proof paint composition of claim 3.

5, by the described compound insulation and fire-proof paint composition of claim 1, it is characterized in that it is 3.2 that water glass is selected modulus for use, concentration is 37% the aqueous solution.

6,, it is characterized in that kaolin selects 350 powder materials for use by the described compound insulation and fire-proof paint composition of claim 1.

7,, it is characterized in that it is 30% technical grade product that Sodium dodecylbenzene sulfonate is selected concentration for use by the described multiple all risk insurance temperature fire-retardant coating composition of claim 1.