CN101220232B - Expansion vitrification bead heat-preserving paint and producing method thereof - Google Patents

Abstract

The invention relates to an expanded vitreous micro-bead thermal insulation coating composite and the preparation method thereof and is characterized in that the main components include expanded vitreous micro-bead accounting for 8 to 11 percent, high silicon aluminum silicate wool accounting for 4 to 6 percent, brucite cashmere accounting for 5 to 10 percent, osmotic agent accounting for 0.5 to 2 percent, polyacrylamide accounting for 5 to 10 percent, casi powder accounting for 3 to 7 percent and the production method thereof. By adopting vitreous micro-bead as the main materials, the expanded vitreous micro-bead thermal insulation coating composite has the advantages of high stability, low dry density, low thermal conductivity, high application temperature, low cubical contraction and low comprehensive production cost, and is innoxious, harmless, taintless, environment-friendly and energy-saving material. The thermal insulation range of the coating composite of the invention is from minus 80 DEG C to 1,100 DEG C.

Description

Expansion vitrification bead heat-preserving paint and working method thereof

Technical field

The present invention relates to building material industry industrial furnace equipment thermal technology pipeline vapor line heat preservation energy-saving paint field, especially about a kind of thermal insulation coatings and working method thereof of expanded and vitrified small ball.

Technical background

Present existing thermal insulation coatings composite heat-isolating silicate paint and hard rankinite insulation coating; All be to be the thermal insulation coatings of stopping composition type with perlite, expanded vermiculite, zeyssatite, wilkinite; Their water-intake rate is big, and unit weight is big, and its component asbestos contain carcinogenic factor.The commercial plant that silicate coating can only be used for below 700 ℃ uses, and its thermal conductivity is at GB/T17371-1998, and the national standard premium grads is: medial temperature 343K ± 5K time≤0.06W/ (m.k).Slurry density≤1000kg/m ³, volumetric shrinkage is up to≤30%, and its major cause is that water-intake rates such as pearl, zeyssatite, wilkinite are several times of self material deadweight.This is the shortcoming that original thermal insulation coatings can't overcome, so that bring shortcomings such as use temperature is low, shrinking percentage is big, water consumption is big, thermal conductivity height, causes the mixed economy cost high.

Summary of the invention

To above deficiency, the object of the present invention is to provide a kind of is main material with expanded and vitrified small ball, expansion vitrification bead heat-preserving paint and working method thereof that process special producing processes forms.

Technical scheme of the present invention realizes in the following manner, and expansion vitrification bead heat-preserving paint, its composition comprise following component (representing with wt.%):

Expanded and vitrified small ball 8-11%, the cotton 4-6% of high aluminum silicate, brucite suede 5-10%, permeate agent 0.5-2%, sticker 5-10%, silicon calcium powder 3-7%, water 55-75%.

In above-mentioned thermal insulation coatings, expanded and vitrified small ball is a kind of unorganic glass matter mineral material, is irregular spherule particle; Inner porous air cavity configuration; Surface vitreous sealing, gloss is level and smooth, and physicochemical property is steady; Have light weight, thermal insulation, fire prevention, high-low temperature resistant, anti-aging, excellent specific property such as water-intake rate is little, overcome the high defectives of material water-intake rate such as perlite, closed perlite, zeyssatite, wilkinite.The above-mentioned percentage range of the combination of these components and each component; Confirm that through a large amount of tests the coating that aforesaid combination and percentage range form coating composition of the present invention has that volumetric shrinkage is little, thermal conductivity is low, long service life, the cheap a kind of heat insulating energy saving material of mixed economy.This coating insulation use temperature scope is between-80-1100 ℃.

Above-mentioned sticker is that concentration is the Z 150PH of 2-3% SEPIGEL 305 or 8%, preferentially is SEPIGEL 305.

Above-mentioned permeate agent is at least a in the sulfosuccinate ester class.

Above-mentioned permeate agent is dioctyl sodium sulfosuccinate, succinate sodium sulfonate, sulfosuccinate ester in the last of the ten Heavenly stems or polyethenoxy ether class compounds preferably, preferentially is dioctyl sodium sulfosuccinate.

Working method of the present invention may further comprise the steps successively:

1), at normal temperatures in above ratio with tap water,, the expanded and vitrified small ball of high aluminum silicate cotton, brucite suede, silicon calcium powder, 1/2 sticker and 1/4-1/3 mixes and stirred 15-20 minute;

2), adding all the other stickers stirred one-tenth pasty state coating 3-5 minute;

3), change coating over to forced stirrer, add all the other expanded and vitrified small balls, stirred 4-5 minute, the paste vitrification bead heat-preserving paint.

Expansion vitrification bead heat-preserving paint of the present invention can adopt conventional the coating, for example equably coating is coated on stove, oil pipeline, steam pipeline through trowelling, spraying method and has on the special-shaped equipment of thermal source.Because expanded and vitrified small ball is formed via special process and 1200 ℃ of-1300 ℃ of thermosols by pitchstone, water-intake rate is little, therefore in product, plays high insulating effect, and volumetric shrinkage is little.The advantage that it has: 1) thermal conductivity is low is 0.032-0.045; 2) water-intake rate≤45; 3) tap density≤80kg/m ³4) the showy rate of volume>=80%; With the glass bead is the thermal insulation coatings of major ingredient, and the advantages of excellent stability ability is arranged, and dry density is little, and thermal conductivity is low, and use temperature is high, and volumetric shrinkage is little, and mixed economy is cheap, is nontoxic, harmless, free of contamination environmental protection and energy saving material.Expansion vitrification bead heat-preserving paint of the present invention insulation use range is at-80-1100 ℃.

Embodiment 1

600 ℃ of type expansion vitrification bead heat-preserving paints (representing) with wt.%

Get: high aluminum silicate cotton 5%, brucite suede 8%, silicon calcium powder 6%, sulfosuccinate ester in the last of the ten Heavenly stems 0.5%, Z 150PH (concentration 8%) 8%, expanded and vitrified small ball 8%, water 64%.

Embodiment 2

800 ℃ of type expansion vitrification bead heat-preserving paints (representing) with wt.%:

Get: high aluminum silicate cotton 4%, brucite suede 5.5%, silicon calcium powder 4%, succinate sodium sulfonate 1%, SEPIGEL 305 (concentration 2%) 7%, expanded and vitrified small ball 9%, water 70%.

Embodiment 3

1100 ℃ of type expansion vitrification bead heat-preserving paints (representing) with wt.%:

Get: high aluminum silicate cotton 5%, brucite fiber 6%, silicon calcium powder 3.5%, dioctyl sodium sulfosuccinate 1.5%, SEPIGEL 305 (concentration 3%) 5%, expanded and vitrified small ball 9%, water 67%.

Working method of the present invention may further comprise the steps successively:

1), at normal temperatures in above ratio with the expanded and vitrified small ball of tap water, dioctyl sodium sulfosuccinate, high aluminum silicate cotton, brucite suede, silicon calcium powder, 1/4 ratio, 1/2 SEPIGEL 305, mix and stirred 15-20 minute;

2), adding remaining SEPIGEL 305 stirred one-tenth pasty state coating 3-5 minute;

3), change coating over to mortar mixer, add all the other expanded and vitrified small balls, stirred 4-5 minute, the paste vitrification bead heat-preserving paint.

It is as shown in the table for technical performance index of the present invention

Annotate: 1100 ℃ of maximum operation (service) temperatures, minimum use temperature-80 ℃.

Claims (4)

1. expansion vitrification bead heat-preserving paint compsn, it is characterized in that: its major ingredient comprises following component, representes with wt.%; Expanded and vitrified small ball 8-11%; The cotton 4-6% of high aluminum silicate, brucite suede 5-10%, at least a permeate agent 0.5-2% in the sulfosuccinate ester class; Concentration is that 2-3% SEPIGEL 305 or concentration are 8% polyvinyl alcohol adhesive 5-10%, silicon calcium powder 3-7%, water 55-75%.

2. expansion vitrification bead heat-preserving paint compsn according to claim 1; It is characterized in that: its composition comprises following component, representes with wt.%: high aluminum silicate cotton 4%, brucite suede 5.5%, silicon calcium powder 4%, succinate sodium sulfonate 0.5%, concentration are 2% SEPIGEL 305 7%, expanded and vitrified small ball 9%, water 70%.

3. expansion vitrification bead heat-preserving paint compsn according to claim 1 is characterized in that: described sulfosuccinate ester class permeate agent is dioctyl sodium sulfosuccinate or succinate sodium sulfonate or sulfosuccinate ester in the last of the ten Heavenly stems.

4. expansion vitrification bead heat-preserving paint composition production method according to claim 1, it is characterized in that: this method is made up of following steps:

1), in above ratio the expanded and vitrified small ball of at least a permeate agent dioctyl sodium sulfosuccinate in water, the sulfosuccinate ester class, high aluminum silicate cotton, brucite suede, silicon calcium powder, 1/2 sticker and 1/4-1/3 is mixed at normal temperatures and stirred 15-20 minute;

2), adding all the other stickers stirred one-tenth pasty state coating 3-5 minute;

3), change coating over to forced stirrer, add all the other expanded and vitrified small balls, stirred 4-5 minute, the paste vitrification bead heat-preserving paint.