CN102808330B - Textile heat-insulating coating and preparation method and using method thereof - Google Patents
Textile heat-insulating coating and preparation method and using method thereof Download PDFInfo
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- CN102808330B CN102808330B CN201210316291.6A CN201210316291A CN102808330B CN 102808330 B CN102808330 B CN 102808330B CN 201210316291 A CN201210316291 A CN 201210316291A CN 102808330 B CN102808330 B CN 102808330B
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Abstract
The invention relates to a textile heat-insulating coating, and a preparation method and a using method thereof. The textile heat-insulating coating mainly comprises, by weight percent, 20-35% of film-forming base material, namely polydimethylsiloxane, 10-25% of heat-insulating functional filling, namely rutile titanium oxide, 60-80% of N, N-dimethylformamide, and 1-2% of sodium hexametaphosphate. Compared with the prior art, the textile heat-insulating coating has the advantages that the raw materials are environment-friendly, easy to obtain and low in cost, processing technology is simple, and the heat-insulating coating is high in adhesion, high in weatherability and excellent in heat insulation.
Description
Technical field
The present invention relates to heat-barrier material technical field, particularly a kind of weaving insulating moulding coating and preparation method thereof and using method.
Background technology
The object irradiating under sunshine, continuous accumulation due to heat, cause surface temperature and the internal temperature of object constantly to raise, this brings great inconvenience and harm not only to people's production and daily life, also can shorten the service life of industrial instrumentation equipment, automobile etc. simultaneously.Building roof and the rising of exterior wall surface temperature can cause surrounding environment and indoor temperature too high, thereby easily form tropical island effect.Have a lot of cities heat island phenomenon in summer to become more and more serious in the world, people's living environment goes from bad to worse, and the comfort level of living environment weakens gradually, and the cooling electric weight of air-conditioning and fan continues to raise.Advocating saving energy, lowering energy consumption and reducing pollutants discharge under the new situation now, save the energy and seem particularly important, therefore, develop a kind of concern that material that the energy just can shield solar thermal energy and passive radiation refrigeration is subject to people day by day that do not need to consume, the coating material with solar heat shielding and radiation function becomes the focus that current people research and develop.
Solar heat shielding coating is a kind of novel functional coating.It can stop the transmission of heat from source, effectively reduce coating surface and inner side environment temperature, thereby reaches effective working environment that improves, and reduces the object of energy consumption, thereby is widely used in the industries such as building, oil, transportation, shipbuilding, military project, space flight.Heat insulating function fabric is that coating sun heat radiation to shielding action is coated to a kind of functional coat fabric obtaining on fabric.It can be made into sunshade thermal insulation articles for use miscellaneous according to varying environment and instructions for use, as thermal-insulation sunshade, sunshading and heat-insulating tent, sun-proof curtain, storage sunshade thermal insulation tarpaulin, machinery sunshading and heat-insulating cloth, car clothing, ship cover etc.
At present, heat insulating function fabric its solvent used of insulating moulding coating used is mostly the organic solvents such as chloroform, carrene, toluene and dimethylbenzene, and film forming base-material is mostly the materials such as polyvinyl chloride, Kynoar, hydrophilic fluororesin and melmac, all human body and environment is had to great harm.Along with the raising day by day of environmental consciousness, existing mostly adopt polyurethane, acrylic resin and epoxy resin etc., but the coating that adopts these film forming base-materials to prepare exists that production cost is high, processed complex, adhesive force is weak, weatherability is poor and the deficiency such as effect of heat insulation.Therefore, developing the heat insulating function coating that a kind of environmental protection, low cost and heat-proof quality are good is the direction of Future Development.
Hu Wen etc. (patent publication No.: CN 102453427 A) disclose a kind of coating that acrylate modified hydrophilic fluororesin prepared as components such as curing agent and auxiliary agents as film forming base-material, isocyanates of take, and have that raw material is poisonous, cost is high, adhesive force is weak, weatherability is poor and the defect such as effect of heat insulation is not good.
Summary of the invention
For a little less than existing weaving insulating moulding coating adhesive force, the problem such as weatherability is poor and effect of heat insulation is not good, the object of this invention is to provide and a kind ofly take dimethyl silicone polymer as matrix resin, rutile titanium dioxide is the weaving insulating moulding coating of heat insulating function filler, this insulating moulding coating coating adhesion is strong, good weatherability, effect of heat insulation is good, and processing technology is easy, and production cost is low.
Weaving insulating moulding coating of the present invention, comprise dimethyl silicone polymer, rutile titanium dioxide, N, dinethylformamide and calgon, be calculated in mass percent, described dimethyl silicone polymer mass fraction accounts for 20 ~ 35%, and described rutile titanium dioxide mass fraction accounts for 10 ~ 25%, described N, dinethylformamide mass fraction accounts for 45 ~ 60%, and described calgon mass fraction accounts for 3 ~ 5%.
Wherein, described rutile titanium dioxide model is selected from one or more in the R-900 of Du Pont, R-902, R-909.
The preparation method who simultaneously the invention also discloses above-mentioned weaving insulating moulding coating, specifically comprises the following steps:
(1) modification of rutile titanium dioxide
A certain amount of rutile titania powder is joined to a certain amount of N, in dinethylformamide solvent, wherein rutile titania powder and N, the ratio of dinethylformamide solvent quality mark is 10 ~ 25%:45 ~ 60%, mechanical agitation is disperseed 10 ~ 50min, make rutile titania powder dispersion liquid, then stir on one side, in the rutile titania powder dispersion liquid of gained, add a certain amount of sodium hexametaphosphate solution on one side, wherein sodium hexametaphosphate solution is 3 ~ 5%:10 ~ 25% with the ratio of rutile titania powder mass fraction, continue dispersed with stirring 10 ~ 50min,
(2) a certain amount of dimethyl silicone polymer is joined in a certain amount of DMF solvent, wherein dimethyl silicone polymer is 20 ~ 35%:45 ~ 60% with the ratio of DMF solvent quality mark, is stirred to and mixes;
(3) rutile titanium dioxide mixed solution step (1) being made joins in the dimethyl silicone polymer solution that step (2) makes, and after being stirred to and mixing, makes weaving insulating moulding coating.
Wherein, the concentration of the DMF in described step (1) and (2) is 0.98g/mL; The percentage composition of the sodium hexametaphosphate solution in described step (1) is 8%.
Further, the invention also discloses the using method of above-mentioned weaving insulating moulding coating, specifically comprise following several step:
(1) the LTF-97885 type coating machine that debugging Switzerland Werner Mathis company produces, is fixed on 60 μ m by spacing between the scraper in coating machine and selvage guide rod, will treat that coated fabric is entirely fixed on needle plate;
(2) by the novel heat-insulation coating preparing above blade coating (blade coating number of times is 1,2,3,4) to fabric on coating machine, scrape after being painted with at every turn and dry 3min in 100 ° of C baking ovens, then according to different temperatures (140 ~ 200 ° of C) different time (1 ~ 7min), bake the cooling heat insulating coat fabric that obtains;
(3) the heat insulating coat fabric of gained is washed after 2 ~ 3 times in water, under 100 ° of C, in baking oven, dry;
(4) the heat insulating coat fabric after drying is carried out to performance test.
Compared with prior art, its remarkable advantage is in the present invention:
(1) solvent that insulating moulding coating is conventional is mostly the organic solvents such as chloroform, carrene and dimethylbenzene, and film forming base-material is mostly the materials such as polyvinyl chloride, Kynoar and melmac, all human body and environment is had to great harm.Solvent DMF and film forming base-material dimethyl silicone polymer that the present invention adopts are substantially pollution-free to environment, and dimethyl silicone polymer has excellent thermo oxidative stability and the performance such as moisture resistance, weather-proof;
(2) the present invention adopts insulating moulding coating directly to spread upon the construction method on fabric, has simplified production technology, easily carries out suitability for industrialized production;
(3) to adopt dimethyl silicone polymer be matrix resin in the present invention, effectively improve the wettability of heat insulating function filler rutile titanium dioxide in solvent, strengthen the coating adhesion of rutile titanium dioxide on fabric, thereby improve the heat insulation stability of coating.
The specific embodiment
Below by example, further describe feature of the present invention, but the present invention is not limited to following example.
Embodiment 1
(1) 8.33g R-900 rutile titania powder is joined and fills 20ml(0.98g/ml) N, in dinethylformamide beaker, gained mixture in D-7401-50 type electric mixer under the rotating speed of 800r/min after dispersed with stirring 20min, adding wherein 1.47g percentage composition is 8% sodium hexametaphosphate solution, continues dispersed with stirring 40min;
(2) 9.8g dimethyl silicone polymer is joined and fills 10ml(0.98g/ml) in the beaker of DMF, with glass bar, be stirred to completely and be uniformly dissolved, standing to wherein not containing bubble;
(3) after finely dispersed rutile titanium dioxide in (1) is joined being stirred in (2) and mixing, make fabric insulating moulding coating;
(4) the LTF-97885 type coating machine that debugging Switzerland Werner Mathis company produces, is fixed on 60 μ m by spacing between the scraper in coating machine and selvage guide rod, will treat that coated fabric is entirely fixed on needle plate;
(5) by the insulating moulding coating preparing above blade coating (twice of blade coating) to fabric on coating machine, scrape after being painted with at every turn and dry 3min under 100 ° of C, then under 140 ° of C, bake 3min, cooling heat insulating coat fabric;
(6) the heat insulating coat fabric of gained is washed after 2 times in water, under 100 ° of C, in baking oven, dry;
(7) the heat insulating coat fabric after drying is carried out to performance test.
Embodiment 2
(1) 16.3g R-902 rutile titania powder is joined and fills 20ml(0.98g/ml) N, in dinethylformamide beaker, gained mixture in D-7401-50 type electric mixer under the rotating speed of 800r/min after dispersed with stirring 20min, adding wherein 3.3g percentage composition is 8% sodium hexametaphosphate solution, continues dispersed with stirring 40min;
(2) 16.3g dimethyl silicone polymer is joined and fills 10ml(0.98g/ml) in DMF beaker, with glass bar, be stirred to completely and be uniformly dissolved, standing to wherein not containing bubble;
(3) after finely dispersed rutile titanium dioxide in (1) is joined being stirred in (2) and mixing, make fabric heat-proof coating material;
(4) the LTF-97885 type coating machine that debugging Switzerland Werner Mathis company produces, is fixed on 60 μ m by spacing between the scraper in coating machine and selvage guide rod, will treat that coated fabric is entirely fixed on needle plate;
(5) by the heat-proof coating material preparing above blade coating (twice of blade coating) to fabric on coating machine, scrape after being painted with at every turn and dry 3min under 100 ° of C, then under 160 ° of C, bake 5min, cooling heat insulating coat fabric;
(6) the heat insulating coat fabric of gained is washed after 3 times in water, under 100 ° of C, in baking oven, dry;
(7) the heat insulating coat fabric after drying is carried out to performance test.
Embodiment 3
(1) 5.88g R-909 rutile titania powder is joined and fills 20ml(0.98g/ml) N, in dinethylformamide beaker, gained mixture in D-7401-50 type electric mixer under the rotating speed of 800r/min after dispersed with stirring 20min, adding wherein 2.94g percentage composition is 8% sodium hexametaphosphate solution, continues dispersed with stirring 100min;
(2) 20.58g dimethyl silicone polymer is joined and fills 10ml(0.98g/ml) in DMF beaker, with glass bar, be stirred to completely and be uniformly dissolved, standing to wherein not containing bubble;
(3) after finely dispersed rutile titanium dioxide in (1) is joined being stirred in (2) and mixing, make fabric insulating moulding coating;
(4) the LTF-97885 type coating machine that debugging Switzerland Werner Mathis company produces, is fixed on 60 μ m by spacing between the scraper in coating machine and selvage guide rod, will treat that coated fabric is entirely fixed on needle plate;
(5) by the insulating moulding coating preparing above blade coating (twice of blade coating) to fabric on coating machine, scrape after being painted with at every turn and dry 3min under 100 ° of C, then under 180 ° of C, bake 5min, cooling heat insulating coat fabric;
(6) the heat insulating coat fabric of gained is washed after 3 times in water, under 100 ° of C, in baking oven, dry;
(7) the heat insulating coat fabric after drying is carried out to performance test.
Embodiment 4:
The heat insulating coat fabric sample that above-described embodiment 1 ~ 3 is made carries out following performance test, and test result is in Table 1.
1, adhesive force
According to GB/T1732-93, test;
2, ageing-resistant QUV test
According to GB1865-80, test;
3, Solar reflectance
According to JGT235-2008, test;
4, thermal conductivity
According to GB10294, test;
5, heat insulating temperature difference testing
According to JGT235-2008, test.
Table 1
| Sample | Embodiment 1 fabric | Embodiment 2 fabrics | Embodiment 3 fabrics |
| Adhesive force | 5B | 5B | 5B |
| QUV/h | 4000 | 3800 | 3700 |
| Solar reflectance | 90% | 87% | 82% |
| Thermal conductivity/W/mK | 0.032 | 0.035 | 0.042 |
| Heat insulating temperature difference testing/° C | 14 | 12 | 9 |
From table 1 test result, can find out, a kind of fabric insulating moulding coating disclosed by the invention is coated to its strong adhesion after fabric, good weatherability, and effect of heat insulation is excellent.
Claims (4)
- One kind weaving insulating moulding coating, it is characterized in that: comprise dimethyl silicone polymer, rutile titanium dioxide, DMF and calgon, be calculated in mass percent, described dimethyl silicone polymer mass fraction accounts for 20 ~ 35%, described rutile titanium dioxide mass fraction accounts for 10 ~ 25%, and described DMF mass fraction accounts for 45 ~ 60%, the mass fraction of described sodium hexametaphosphate solution accounts for 3 ~ 5%, and the percentage composition of sodium hexametaphosphate solution is 8%; Described weaving insulating moulding coating preparation process is:(1) modification of rutile titanium dioxideA certain amount of rutile titania powder is joined to a certain amount of N, in dinethylformamide solvent, mechanical agitation is disperseed, make rutile titania powder dispersion liquid, then stir on one side, in the rutile titania powder dispersion liquid of gained, add a certain amount of sodium hexametaphosphate solution on one side, continue dispersed with stirring;(2) a certain amount of dimethyl silicone polymer is joined in a certain amount of DMF solvent, be stirred to and mix;(3) rutile titanium dioxide mixed solution step (1) being made joins in the dimethyl silicone polymer solution that step (2) makes, and after being stirred to and mixing, makes weaving insulating moulding coating.
- 2. weaving insulating moulding coating according to claim 1, is characterized in that: described rutile titanium dioxide model is selected from one or more in R-900, R-902, R-909.
- 3. the weave preparation method of insulating moulding coating, is characterized in that comprising following step:(1) modification of rutile titanium dioxideA certain amount of rutile titania powder is joined to a certain amount of N, in dinethylformamide solvent, wherein rutile titania powder and N, the ratio of dinethylformamide solvent quality mark is 10 ~ 25%:45 ~ 60%, mechanical agitation is disperseed 10 ~ 50min, make rutile titania powder dispersion liquid, then stir on one side, in the rutile titania powder dispersion liquid of gained, add a certain amount of sodium hexametaphosphate solution on one side, wherein sodium hexametaphosphate solution is 3 ~ 5%:10 ~ 25% with the ratio of rutile titania powder mass fraction, and the percentage composition of sodium hexametaphosphate solution is 8%, continue dispersed with stirring 10 ~ 50min,(2) a certain amount of dimethyl silicone polymer is joined in a certain amount of DMF solvent, wherein dimethyl silicone polymer is 20 ~ 35%:45 ~ 60% with the ratio of DMF solvent quality mark, is stirred to and mixes;(3) rutile titanium dioxide mixed solution step (1) being made joins in the dimethyl silicone polymer solution that step (2) makes, and after being stirred to and mixing, makes weaving insulating moulding coating.
- 4. preparation method according to claim 3, is characterized in that the concentration of DMF in step (1) and (2) is 0.98g/mL.
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| CN102808330B true CN102808330B (en) | 2014-02-26 |
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| CN101443512A (en) * | 2005-12-19 | 2009-05-27 | 蓝星有机硅法国公司 | Fibrous support comprising a silicone coating |
| CN102492338A (en) * | 2011-12-12 | 2012-06-13 | 深圳市广田环保涂料有限公司 | Elastic heat-insulation fluorocarbon coating and preparation method and use method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101443512A (en) * | 2005-12-19 | 2009-05-27 | 蓝星有机硅法国公司 | Fibrous support comprising a silicone coating |
| CN102492338A (en) * | 2011-12-12 | 2012-06-13 | 深圳市广田环保涂料有限公司 | Elastic heat-insulation fluorocarbon coating and preparation method and use method thereof |
Non-Patent Citations (2)
| Title |
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| 二氧化钛的隔热机理及其在功能织物上的应用;王科林等;《现代纺织技术》;20091231(第1期);第59-62页 * |
| 王科林等.二氧化钛的隔热机理及其在功能织物上的应用.《现代纺织技术》.2009,(第1期),第59-62页. |
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