CN103387683A - Preparation method of temperature sensitive polydimethylsiloxane thin film - Google Patents
Preparation method of temperature sensitive polydimethylsiloxane thin film Download PDFInfo
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- CN103387683A CN103387683A CN2013103415384A CN201310341538A CN103387683A CN 103387683 A CN103387683 A CN 103387683A CN 2013103415384 A CN2013103415384 A CN 2013103415384A CN 201310341538 A CN201310341538 A CN 201310341538A CN 103387683 A CN103387683 A CN 103387683A
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Abstract
The invention provides a preparation method of a temperature sensitive polydimethylsiloxane thin film. The thin film is mainly formed by introducing a thermochromic material into a prepolymer of polydimethylsiloxane, coating the material to the surface of a solid substrate and heating and curing. The polydimethylsiloxane thin film is 10-1000 microns thick. The thermochromic range of the polydimethylsiloxane thin film is -15-100 DEG C.
Description
Technical field
The present invention relates to a kind of preparation method with polydimethylsiloxane film of temperature-sensitive characteristic.
Background technology
In the biological or chemical analysis field, the control of temperature and mensuration are of great significance for chemistry, biological reaction and detection tool.At present, in industrial production, the detection majority of temperature gathers and measures material surface or inner temperature data by the peripheral hardware of special temperature sensor combined circuit instrument.
If can develop the preparation method of better, the flexible intelligent film material of a kind of biocompatibility, have very important using value and market outlook.As everyone knows, polydimethylsiloxane (PDMS), be commonly called as silicon rubber, it is a kind of macromolecule polymer material of excellent performance, transparent PDMS film has the features such as excellent optical transparence, bio-compatibility, elasticity, is widely used in the fields such as cell cultures, microfluidic analysis chip., if can prepare the PDMS film with temperature-sensitive characteristic, thereby will further promote and improve the PDMS material behavior, further enlarge the use range of PDMS.
Summary of the invention
The invention provides a kind of preparation method of temperature sensibility polydimethylsiloxane film, mainly comprise the following characteristics step:
1. temperature-sensing color-changing material is entered in the performed polymer of polydimethylsiloxane, and both are fully mixed, vacuum eliminates the mixed solution that forms homogeneous after bubble;
2. above-mentioned mixed solution is coated in the solid state substrate surface, forms one deck thin liquid film;
3. the substrate of surface-coated liquid film is placed in hot plate or baking oven, the heating certain hour, make the complete polymerizing curable of polydimethylsiloxane;
4. the polydimethylsiloxane film after curing molding is peeled off from substrate, be prepared into the polydimethylsiloxane film with temperature-sensitive characteristic.
The temperature-sensing color-changing material of step described in 1. can be the powder of the warm variable pigments of 0.1～10 micron of particle diameter, can be also contain warm variable pigments microcapsule or solution.Described polydimethylsiloxane performed polymer comprises polydimethylsiloxane monomer and polymerization starter, and volume ratio is 20: 1～1: 10.
The coating method of step described in 2. can be to use centrifugation apparatus spin coating liquid film, also can be cast directly over standing formation thin electrolyte film on substrate.Described substrate material is polydimethylsiloxane, glass, polyethylene, tetrafluoroethylene, polyvinyl chloride, metal.
The curing molding condition of step described in 3. is 80～200 degrees centigrade and solidified 0.5～3 hour.
The temperature-sensitive characteristic of step described in 4. refers to that this film can show distinct colors under differing temps.The thickness of described polydimethylsiloxane film is 10～1000 microns.The heat discoloration scope of described polydimethylsiloxane film is-15 ℃～100 ℃.
The invention provides a kind of preparation method of temperature sensibility polydimethylsiloxane film, it is characterized in that, described polydimethylsiloxane film can copy the pattern of substrate surface fully, can be surfacing, also can have the microstructure features such as projection or groove.
Specific embodiments
To be further described the present invention below in conjunction with embodiment.
The preparation of a kind of temperature sensibility polydimethylsiloxane of embodiment film
It is the temperature-sensitive capsule powders material of 3～10 microns with particle diameter, the ratio that is 0.5～1% according to mass ratio joins in the performed polymer of polydimethylsiloxane, the volume ratio of monomer and initiator is 10: 1, stirs both are fully mixed, and vacuum eliminates after bubble the mixed solution that forms homogeneous; Use photoresist spinner to be coated in slide surface (slide surface uses Teflon to apply modification in advance) above-mentioned mixed solution, form the approximately thin liquid film of 300 microns of a layer thickness; The slide glass of surface-coated liquid film is placed in hot plate or baking oven, and 80 ℃ of heating 1h, make the complete polymerizing curable of polydimethylsiloxane; Polydimethylsiloxane film after curing molding is peeled off from substrate, be prepared into the polydimethylsiloxane film with temperature-sensitive characteristic.
This film is bright red in the time of 25 ℃, if this film is close on a heating member, when temperature increases, the color of film will shoal from redness, when temperature is raised to 80 ℃, transfer water white state to.Therefore, from the colour-change of film, can Evaluation Environment or the temperature of object under test.
Use method provided by the invention, can prepare rapidly a kind of intelligent polymer polymer materials of flexibility, this material has sense temperature, and varies with temperature the characteristic that presents different colours.This material prospect that is widely used in fields such as electronics, chemistry, biology, medical science.
Claims (8)
1. the preparation method of a temperature sensibility polydimethylsiloxane film is characterized in that comprising the following characteristics step:
1. temperature-sensing color-changing material is joined in the performed polymer of polydimethylsiloxane, and both are fully mixed, vacuum eliminates the mixed solution that forms homogeneous after bubble;
2. above-mentioned mixed solution is coated on solid state substrate, forms one deck thin liquid film;
3. the substrate of surface-coated liquid film is placed in hot plate or baking oven, the heating certain hour, make the complete polymerizing curable of polydimethylsiloxane;
4. the polydimethylsiloxane film after curing molding is peeled off from substrate, be prepared into the polydimethylsiloxane film with temperature-sensitive characteristic.
2. according to the preparation method of a kind of temperature sensibility polydimethylsiloxane film claimed in claim 1, it is characterized in that, the temperature-sensing color-changing material of step described in 1. can be the powder of the warm variable pigments of 0.1～10 micron of particle diameter, can be also contain warm variable pigments microcapsule or solution.
3. according to the preparation method of a kind of temperature sensibility polydimethylsiloxane film claimed in claim 1, it is characterized in that, the coating method of step described in 2. can be to use centrifugation apparatus spin coating liquid film, also can be cast directly over standing formation thin electrolyte film on substrate.
4., according to the preparation method of a kind of optical filtering property polydimethylsiloxane film claimed in claim 1, it is characterized in that, the substrate material of step described in 2. is polydimethylsiloxane, glass, polyethylene, tetrafluoroethylene, polyvinyl chloride, metal.
5., according to the preparation method of a kind of temperature sensibility polydimethylsiloxane film claimed in claim 1, it is characterized in that, the curing molding condition of step described in 3. is 80～200 degrees centigrade and solidified 0.5～3 hour.
6., according to the preparation method of a kind of temperature sensibility polydimethylsiloxane film claimed in claim 1, it is characterized in that, the temperature-sensitive characteristic of step described in 4. refers to that this film can show distinct colors under differing temps.
7., according to the preparation method of a kind of temperature sensibility polydimethylsiloxane film claimed in claim 1, it is characterized in that, the thickness of the polydimethylsiloxane film of step described in 4. is 10～1000 microns.
8., according to the preparation method of a kind of temperature sensibility polydimethylsiloxane film claimed in claim 1, it is characterized in that, the heat discoloration scope of described polydimethylsiloxane film is-15 ℃～100 ℃.
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| CN2013103415384A CN103387683A (en) | 2013-08-07 | 2013-08-07 | Preparation method of temperature sensitive polydimethylsiloxane thin film |
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| CN2013103415384A CN103387683A (en) | 2013-08-07 | 2013-08-07 | Preparation method of temperature sensitive polydimethylsiloxane thin film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409625A (en) * | 2014-10-14 | 2015-03-11 | 湖北大学 | Preparing method of KNN piezoelectric nanofiber flexible electricity generating element |
| CN108148756A (en) * | 2016-12-05 | 2018-06-12 | 中国科学院大连化学物理研究所 | A kind of preparation method of low adherency culture plate |
| CN110389066A (en) * | 2019-08-26 | 2019-10-29 | 浙江理工大学 | A kind of pigment color difference test method of dimethyl silicone polymer-pigment-dimethyl silicone polymer sandwich type structural |
| CN114132039A (en) * | 2021-11-25 | 2022-03-04 | 厦门长塑实业有限公司 | Degradable temperature-sensitive color-changing two-way stretching polylactic acid film and preparation method thereof |
Citations (1)
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| CN1745264A (en) * | 2002-12-04 | 2006-03-08 | 斯宾克斯公司 | Devices and methods for programmable microscale manipulation of fluids |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1745264A (en) * | 2002-12-04 | 2006-03-08 | 斯宾克斯公司 | Devices and methods for programmable microscale manipulation of fluids |
Non-Patent Citations (1)
| Title |
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| 刘守坤等: ""一种基于微流控芯片技术的流式细胞计数系统"", 《传感器与微系统》, vol. 28, no. 10, 31 December 2009 (2009-12-31) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409625A (en) * | 2014-10-14 | 2015-03-11 | 湖北大学 | Preparing method of KNN piezoelectric nanofiber flexible electricity generating element |
| CN108148756A (en) * | 2016-12-05 | 2018-06-12 | 中国科学院大连化学物理研究所 | A kind of preparation method of low adherency culture plate |
| CN110389066A (en) * | 2019-08-26 | 2019-10-29 | 浙江理工大学 | A kind of pigment color difference test method of dimethyl silicone polymer-pigment-dimethyl silicone polymer sandwich type structural |
| CN114132039A (en) * | 2021-11-25 | 2022-03-04 | 厦门长塑实业有限公司 | Degradable temperature-sensitive color-changing two-way stretching polylactic acid film and preparation method thereof |
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Application publication date: 20131113 |