CN103396734A - Anti-radiation heat-insulation coating and preparation method thereof - Google Patents

Abstract

The invention relates to a coating for coating various surfaces, and particularly relates to an anti-radiation heat-insulation coating and a preparation method thereof. The anti-radiation heat-insulation coating comprises the following components: by mass, 50-60 parts of silicone foam resin, 1-3 parts of cellulose acetate butyrate, 0.2-1 part of an antifoaming agent, 15-20 parts of glass heat-insulation powder, 0.5-3 parts of nanometer SiO2, 0.2-1 part of a dispersant, 10-15 parts of butyl acetate, 13-15 parts of an anti-radiation agent, 0.5-2 parts of a leveling agent and 15-20 parts of conductive mica. In the components of the anti-radiation heat-insulation coating, the glass heat-insulation powder is used for formation of effective fiber-analogy channels so as to complete heat transfer, then bridging effects of silicon-oxygen functional groups are combined, a synergistic effect is formed under the filling effect of an anti-radiation material, and an effective heat-insulation effect of the coating can be realized. Experiments show that the anti-radiation heat-insulation coating has the advantages of high heat-insulation effect, good storage stability, simple preparation technology and low cost.

Description

Anti-radiation insulation thermal insulation coatings and preparation method thereof

Technical field

The present invention relates to a kind of coating for various surface-coated, specifically a kind of anti-radiation insulation thermal insulation coatings and preparation method thereof.

Background technology

Existing anti-radiation insulation coating is mainly there to be three types: isolated conduction type thermal insulating coating, reflection type thermal insulation coating and Radiation Heat-insulated Paint.In addition, the type material of the hollow microvesicle of existing application is made heat insulating coatings at present, but start late at home, affect at present the following problem of having of this type of paint development: 1, mainly with hollow be main be main lagging material, materials often has effect of heat insulation at short notice, but, during through the prolonged exposure of 1 ~ 2 hour or thermal conduction, along with the slow thermal conduction of vacuum layer, reach boundary's balance inside and outside final and lose effect of heat insulation.2, the quality of cenosphere is uneven, and the parameters such as size all can't effectively detect, can only be by Performance Detection after the formation product; Another part, take ceramic fine bead as carrier, still can't effectively be ensured the quality of products with cenosphere is the same.3, cenosphere has low-density singularity, causes the storage short period of time after this kind of interpolation material in thermal insulating coating that surperficial conjunctiva just occurs, and the time, longer rete was thicker, serious even whole barrel knot piece.What can't guarantee to construct is stable, finally forms invalid coating, causes most enterprises to be hung back to real thermal insulating coating.

Summary of the invention

Technical problem to be solved by this invention is, a kind of good heat-insulation effect, preparation technology is simple, stability in storage is good anti-radiation insulation thermal insulation coatings and preparation method thereof are provided.

Anti-radiation insulation thermal insulation coatings of the present invention, the composition that it comprises and mass fraction are silicon bubble resin 50-60 part, cellulose acetate butyrate 1-3 part, defoamer 0.2-1 part, glass heat-proof powder 15-20 part, nanometer SiO ₂0.5-3 part, dispersion agent 0.2-1 part, N-BUTYL ACETATE 10-15 part, antiradiation agent 13-15 part, flow agent 0.5-2 part, Conductive mica 15-20 part.Described silicon bubble resin grade is that source grace 3030, the defoamer trade mark are that BYK067, the glass heat-proof powder trade mark are 3400, the dispersion agent trade mark is BYK110 or BYK163, the antiradiation agent trade mark are that HRT-300, the flow agent trade mark are BYK-354, and Conductive mica is the 60-70 order.

In described composition, also include Rutile type Titanium Dioxide 25-30 part, its trade mark is R902.

The preparation method of anti-radiation insulation thermal insulation coatings of the present invention comprises the following steps successively:

A. by mass fraction, get silicon bubble resin 50-60 part, glass heat-proof powder 15-20 part, N-BUTYL ACETATE 10-15 part, dispersion agent 0.2-1 part and carry out physical mixed, through grinding distribution, cause the 18-20 micron;

B. under the state that stirs, add Conductive mica 15-20 part, antiradiation agent 13-15 part, cellulose acetate butyrate 1-3 part, carried out Centrifugal dispersion machine high-speed stirring logical static 15 minutes, then add defoamer 0.2-1 part, nanometer SiO ₂0.5-3 part, flow agent 0.5-2, continue to stir after completing, and be cooling, makes finished product.

In the raw material of above-mentioned steps a, also can add the common dispersion grinding of Rutile type Titanium Dioxide 25-30 part.

In composition of the present invention, adopt the glass heat-proof powder, forms effective type optical fiber passage, complete transfer of heat, then, in conjunction with the bridge joint effect of silica functional group, under the filling effect of antiradiation material, form and act synergistically, realize effective thermal insulation coat.Through evidence, its heat insulation and preservation effect is high, stability in storage good, and its preparation technology is simple simultaneously, cost is low.

Embodiment

This is implemented as follows:

Prepare the anti-radiation insulation thermal insulation coatings, the process following steps:

A. by mass fraction, get 25 parts of 55 parts of silicon bubble resins (source grace 3030), (3400) 18 parts, glass heat-proof powder, 15 parts of N-BUTYL ACETATEs (SILVER REAGENT), 0.2 part of dispersion agent (BYK110), Rutile type Titanium Dioxide (R902) and carry out physical mixed, through grinding distribution, cause 20 microns; Wherein Rutile type Titanium Dioxide is dyestuff, as prepares Clear paint and can not add.

B. under the state that stirs, add 20 parts of Conductive micas (600 order), 14 parts of antiradiation agents (HRT-300), 1 part of cellulose acetate butyrate, carried out Centrifugal dispersion machine high-speed stirring logical static 15 minutes, then add 0.2 part of defoamer (BYK067), nanometer SiO ₂1 part of 2 part, flow agent (BYK-354), continue to stir after completing, and are cooling, make finished product.

Anti-radiation insulation thermal insulation coatings prepared by the embodiment of the present invention added after appropriate thinner standing 15 minutes, and then brush board detects performance, and result is as follows:

Sequence number	Project	Unit	Detected result
				1	Visible reflectance	%	15%
2	The infrared reflection rate	%	95%
				3	The micro mist specific refractory power	%	0.85
4	Thermal conductivity	w/m.k2mpa	0.03
				5	Thermal resistance	?	30
6	Acid resistance (5%HCL)	h	500h is unchanged
				7	Water tolerance	h	240h is unchanged
8	Alkali resistance (5%NaOH)	h	240h is unchanged
				9	Weathering resistance	h	1000h
10	Time of drying	h	0.5h
				11	The anti-number of times of scrubbing	Inferior	3000 times
12	Temperature-change resistance	?	8 circulations are unchanged
				13	Hardness	H	4H
14	Recoatability	?	Recoat is accessible
				15	Heat insulation temperature	℃	15
16	Constant temperature time	h	8
				17	Stability in storage	D	180D is without caking flocculation phenomenon

The heat-insulation constant temperature effect measuring is by an airtight open containers, and by test plate (panel) all standing aperture position, the internal links temperature sensor is observed warm change situation at any time, outside use simulated solar irradiation light irradiation 12 hours.Result shows, temperature in 4 hours annular seal spaces is basicly stable in 26 degree, temperature starts rapid rising after 8 hours, the surface interface balance is broken, heat insulation inefficacy, and therefore 8 hours is a boundary, and domestic average daily radiation quantity is about 6 hours, so substantially meet the anti-radiation insulation demand, due to higher cost performance, can realize simultaneously the popularization of thermal insulating coating, realize new market orientation.

Claims (6)

1. anti-radiation insulation thermal insulation coatings is characterized in that: the composition that it comprises and mass fraction are silicon bubble resin 50-60 part, cellulose acetate butyrate 1-3 part, defoamer 0.2-1 part, glass heat-proof powder 15-20 part, nanometer SiO ₂0.5-3 part, dispersion agent 0.2-1 part, N-BUTYL ACETATE 10-15 part, antiradiation agent 13-15 part, flow agent 0.5-2 part, Conductive mica 15-20 part.

2. anti-radiation insulation thermal insulation coatings according to claim 1, it is characterized in that: described silicon bubble resin grade is that source grace 3030, the defoamer trade mark are that BYK067, the glass heat-proof powder trade mark are 3400, the dispersion agent trade mark is BYK110 or BYK163, the antiradiation agent trade mark are that HRT-300, the flow agent trade mark are BYK-354, and Conductive mica is the 60-70 order.

3. anti-radiation insulation thermal insulation coatings according to claim 1 and 2, is characterized in that: in its composition, also include Rutile type Titanium Dioxide 25-30 part.

4. anti-radiation insulation thermal insulation coatings according to claim 4, it is characterized in that: the Rutile type Titanium Dioxide trade mark is R902.

5. the preparation method of an anti-radiation insulation thermal insulation coatings is characterized in that: comprises the following steps successively,

A. by mass fraction, get silicon bubble resin 50-60 part, glass heat-proof powder 15-20 part, N-BUTYL ACETATE 10-15 part, dispersion agent 0.2-1 part and carry out physical mixed, through grinding distribution, cause the 18-20 micron;

B. under the state that stirs, add Conductive mica 15-20 part, antiradiation agent 13-15 part, cellulose acetate butyrate 1-3 part, carried out Centrifugal dispersion machine high-speed stirring logical static 15 minutes, then add defoamer 0.2-1 part, nanometer SiO ₂0.5-3 part, flow agent 0.5-2, continue to stir after completing, and be cooling, makes finished product.

6. the preparation method of anti-radiation insulation thermal insulation coatings according to claim 5, is characterized in that: in the raw material of step a, add the common dispersion grinding of Rutile type Titanium Dioxide 25-30 part.