CN100549296C - The application of shape memory polymer paper - Google Patents
The application of shape memory polymer paper Download PDFInfo
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- CN100549296C CN100549296C CNB200710071852XA CN200710071852A CN100549296C CN 100549296 C CN100549296 C CN 100549296C CN B200710071852X A CNB200710071852X A CN B200710071852XA CN 200710071852 A CN200710071852 A CN 200710071852A CN 100549296 C CN100549296 C CN 100549296C
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- paper
- braille
- memory polymer
- shape memory
- shape
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Abstract
The application of shape memory polymer paper, it relates to a kind of new purposes of shape memory polymer paper.Disposable use, the clerical error that the present invention efficiently solves the touch array keyboard of existing braille paper and blind person and computer interactive can not be revised and the problem of refreshable use not.Described shape memory polymer paper is as the refreshable touch array keyboard of refreshable braille paper or blind person and computer interactive, described braille paper refreshes like this: with the some heater clerical error on the braille paper is made amendment or with used braille paper be heated to transition temperature with on eliminate original braille on the braille paper, make the braille paper of writing return to original state.The present invention has realized that braille with the recycling of paper, greatly saved resource.
Description
Technical field
The present invention relates to the new purposes of shape memory polymer paper.
Background technology
Braille is the dot matrix of writing on the braille paper of special use.The blind person can read by the projection of lattice-like on the touch paper with the visually impaired people and exchange.Existing braille paper has two kinds.A kind of is common paper, and its feature is exactly thicker.The shortcoming of this paper is can only be used for writing temporarily and reading, because even under small external force effect, the lip-deep projection of paper also is easy to disappear.Another kind is common polymer paper, utilizes pin pen and slate to produce impression on general polymer paper, and this impression is nonvolatil, so general polymerization thing braille paper has disposable.For above two kinds of paper,, even mistake is very small, all can't correct, nor can refresh use in case clerical error occurs.The touch array keyboard of blind person and computer interactive, it is the braille display device that links to each other with computer, be a kind of 3 * 2 special dot matrix keyboards, the blind person can touch through mechanically operated point-like projection and read computer documents, the structure more complicated of the touch array keyboard of existing blind person and computer interactive, use difficulty, big, the poor reliability of taking up room, maintenance inconvenience, the motion repeatedly of machinery has consumed the energy, can not refresh use.
Summary of the invention
The present invention can not revise for disposable use, the clerical error of the touch array keyboard that solves existing braille paper and blind person and computer interactive and the problem of refreshable use not, and the present provides a kind of application of shape memory polymer paper.
The application of shape memory polymer paper, described shape memory polymer paper is as the refreshable touch array keyboard of refreshable braille paper or blind person and computer interactive, described braille paper refreshes like this: with the some heater clerical error on the braille paper is made amendment or with used braille paper be heated to transition temperature with on eliminate original braille on the braille paper, make the braille paper of writing return to original state.
The manufacture method of foregoing shape memory polymer paper is finished by following steps: one, make long * wide * thickly be 45cm * 20cm * 4 * 10
-3The template of cm; Two, two baffle plates are installed in two ends on the template face respectively; Three, with shape-memory polymer and dimethyl formamide (DMF) solvent be 10: 1～0 mixed by volume, stir 5～20min and make mixed solution; Four, processing release paper is laid on the template face; Five, the rod that will suspend is suspended on the top of template; Six, mixed solution in the step 3 is watered on the processing release paper; Seven, adjusting the excellent distance with the template face that suspends is 3 * 10
-3～50 * 10
-3Cm; Eight, the rod that move to suspend repeatedly between two baffle plates of template makes that mixed solution evenly is scattered in a coating in the step 3 on the template face; Nine, the template of completing steps eight is seated in to make thickness behind the stove internal heating curing of antiknock be 3 * 10
-3～50 * 10
-3The shape memory polymer paper of cm.
Foregoing shape memory polymer paper also can adopt following method manufacturing, the steps include: one, the shape-memory polymer solid is seated in the metal die; Two, mould is placed on is heated to 240～280 ℃ under the hot press, keeping hot press pressure is 1 standard atmospheric pressure, continues heating 3～10min when temperature reaches 280 ℃; Three, treat that the complete fusion of shape-memory polymer solid becomes liquid state after, rapidly the temperature of heat of cooling press upper and lower mould is to room temperature, quenching process continues 5～15min, finishes increase pressure to 20 standard atmospheric pressure simultaneously in 5～10s; Four, behind mold pressing 10～40min, take out mould, making thickness is 3 * 10
-3～50 * 10
-3The shape memory polymer paper of cm.
Shape memory polymer paper is as the application of the touch array keyboard of braille paper or blind person and computer interactive, the characteristics of the recoverable and shape memory characteristic of the shape of having utilized shape-memory polymer when transition temperature is above, to have, described shape memory polymer paper is placed on the slate, utilize the pin pen on braille paper, to form impression, form the protruding dot matrix of braille at the another side of shape memory polymer paper, cooling rapidly, the lip-deep impression of shape memory polymer paper or display device has been fixed, on the braille paper clerical error is arranged if find, just can be by the local impression of some heater heating, reach it more than transition temperature, its shape is recovered, finished modification.When wanting to write new braille, also needn't use new braille paper, and only need heat whole shape memory polymer paper, make it more than transition temperature that reaches shape-memory polymer, the impression of shape memory polymer paper will complete obiteration, return to original state, can be more again impression form new braille.Transition temperature with shape memory polymer paper is that critical point realizes refreshing use.With shape memory polymer paper as the touch array keyboard of blind person and computer interactive have simple in structure, save the space, application that maintenance is replaced is convenient, refreshable circulation makes month advantage shape memory polymer paper is used as the touch array keyboard of braille paper or blind person and computer interactive can keep for a long time and also can repeat to refresh use, make that blind person and visually impaired people are the same with the normal person to carry out continual the interchange with the external world, realized that braille with the recycling of paper, greatly saved resource.
Description of drawings
Fig. 1 is the fundamental diagram of the refreshable touch array keyboard of blind person and computer interactive.
The specific embodiment
The specific embodiment one: as shown in Figure 1, the application of shape memory polymer paper, described refreshable shape memory polymer paper is as the touch array keyboard of braille paper or blind person and computer interactive, described shape memory polymer paper is placed on the slate, utilize the pin pen on braille paper, to form impression, form the protruding dot matrix of braille at the another side of shape memory polymer paper.Shape memory polymer paper is used for being achieved in that the shape memory polymer paper 3 with closure is enclosed between rotating shaft 1 and the rotating shaft 2 on the touch array keyboard of blind person and computer interactive that rotating shaft 2 drives shape memory polymer papers and moves.Near rotating shaft 2 places a pressure head 5 is being arranged, pressure head 5 moves upward under the control of computer, produces impression (projection) below backing plate 6, along with the rotation of rotating shaft, extrudes a series of braille on the polymer paper.The blind person can come and computer interactive by touching these impressions.When shape memory polymer paper had the part of impression to move between close two heaters 4 of rotating shaft 1 bottom, shape memory polymer paper reached transition temperature, and impression disappears.Be moved further, shape memory polymer paper is cooled to room temperature again, when getting back to the pressure head position again, can produce impression again.
The specific embodiment two: the difference of the present embodiment and the specific embodiment one is, described braille paper refreshes like this: with the some heater clerical error on the braille paper is made amendment or with used braille paper be heated to transition temperature with on eliminate original braille on the braille paper, make the braille paper of writing return to original state.Shape-memory polymer is a kind of temperature dependent particular polymer that has, and has unique shape memory function.After arriving transition temperature after the heating, can change shape arbitrarily.Shape-memory polymer can have very big distortion, and such distortion can recover fully.The deformation of shape-memory polymer realizes by heating, humidity, pH value, electric field, magnetic field or illumination.The shape-memory polymer of polyurethane, isocyanates, phenylethylene and epoxy resin can be realized SME by heating exactly.When exceeding the transition temperature of polymer along with the rising of temperature, such shape-memory polymer can form different shape under external force, and after reducing temperature fast, can maintain its new shape that forms, when passing through heating or other type of drive once more, reach its transition temperature when above, it can automatically restore to initial shape and size again again.Described some heater is a simple machine, by lead the battery of 9V, resistance and switch of 0.5W100 Ω coupled together.One end lead of switch links to each other with the terminal of battery and clamps with clip, and the lead that the switch other end picks out links to each other with an end of resistance, and simultaneously, the other end of resistance then links to each other with battery and forms the loop of a closure.When Closing Switch, resistance is closed the circulating current heating in the circuit, when ohmically temperature is higher than the transition temperature of shape memory polymer paper, the point heater just can carry out local heat with the mistake on paper and the braille display device to the shape-memory polymer braille, make polymer reach the deformation recovery temperature, at this moment the projection at clerical error place returns to formation state, realizes the part of clerical error is revised.
The specific embodiment three: the manufacture method of shape memory polymer paper, finish by following steps: one, make long * wide * thickly be 45cm * 20cm * 4 * 10
-3The template of cm; Two, two baffle plates are installed in two ends on the template face respectively; Three, with shape-memory polymer and dimethyl formamide (DMF) solvent be 10: 1～0 mixed by volume, stir 5～20min and make mixed solution; Four, processing release paper is laid on the template face; Five, the rod that will suspend is suspended on the top of template; Six, mixed solution in the step 3 is watered on the processing release paper; Seven, adjusting the excellent distance with the template face that suspends is 3 * 10
-3～50 * 10
-3Cm; Eight, the rod that move to suspend repeatedly between two baffle plates of template makes that mixed solution evenly is scattered in a coating in the step 3 on the template face; Nine, the template of completing steps eight is placed on to make thickness behind the stove internal heating curing of antiknock be 3 * 10
-3～50 * 10
-3The shape memory polymer paper of cm.
The specific embodiment four: the difference of the present embodiment and the specific embodiment three is that described shape-memory polymer is the thermoplasticity shape-memory polymer of shape memory polyurethane resin, polyurethanes shape-memory polymer, isocyanates shape-memory polymer, phenylethylene shape-memory polymer, epoxies or the thermoset shape memory polymer of epoxies.Difference is to select different polymeric materials for use, and the transition temperature that need be heated to is also different.The polyurethanes shape-memory polymer that the present invention adopts by Japanese MHI company produce, model is MM5520, its glass transition temperature is 55 ℃.
The specific embodiment five: the difference of the present embodiment and the specific embodiment three, four is that the density of described shape memory polyurethane resin is 0.9g/cm
3Adopt such density in manufacture process, easily to solidify.
The specific embodiment six: the difference of the present embodiment and the specific embodiment three, four, five is, the manufacture method of described shape memory polymer paper, described polyurethanes shape-memory polymer is MM3520 or MM5520, and the transition temperature of MM3520 and MM5520 is respectively 36 ℃ and 55 ℃.Such temperature all is very safe to the user and the producer.
The specific embodiment seven: the difference of the present embodiment and the specific embodiment three, four, five, six is, in the step 9, when the coating layer thickness on the template face was 5～20 μ m, solidification temperature was 90～130 ℃, and be 5～10min hardening time.Reasonably help improving the quality of shape memory polymer paper hardening time.
The specific embodiment eight: the difference of the present embodiment and the specific embodiment three, four, five, six, seven is, in the step 9, when the coating layer thickness on the template face was 20～50 μ m, solidification temperature was 50～90 ℃, and be 1～3h hardening time.Reasonably help improving the quality of shape memory polymer paper hardening time.
The specific embodiment nine: the manufacture method of shape memory polymer paper, it is finished like this: one, the shape-memory polymer solid is seated in the metal die; Two, mould is placed on is heated to 240～280 ℃ under the hot press, keeping hot press pressure is 1 standard atmospheric pressure, continues heating 3～10min when temperature reaches 280 ℃; Three, treat that the complete fusion of shape-memory polymer solid becomes liquid state after, rapidly the temperature of heat of cooling press upper and lower mould is to room temperature, quenching process continues 5～15min, finishes increase pressure to 20 standard atmospheric pressure simultaneously in 5～10s; Four, behind mold pressing 10～40min, take out mould, making thickness is 3 * 10
-3～50 * 10
-3The shape memory polymer paper of cm.
The specific embodiment ten: the difference of the present embodiment and the specific embodiment nine is, shape-memory polymer solid in the step 1 is shape memory polyurethane (MM3500) solid, the melt temperature of shape memory polyurethane (MM3500) solid is 240～280 ℃, and melt temperature is easy to control.
Claims (1)
1, a kind of application of shape memory polymer paper, it is characterized in that: described shape memory polymer paper is as the refreshable touch array keyboard of refreshable braille paper or blind person and computer interactive, described braille paper refreshes like this: with the some heater clerical error on the braille paper is made amendment or with used braille paper be heated to transition temperature with on eliminate original braille on the braille paper, make the braille paper of writing return to original state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710071852XA CN100549296C (en) | 2007-03-07 | 2007-03-07 | The application of shape memory polymer paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710071852XA CN100549296C (en) | 2007-03-07 | 2007-03-07 | The application of shape memory polymer paper |
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| Publication Number | Publication Date |
|---|---|
| CN101016708A CN101016708A (en) | 2007-08-15 |
| CN100549296C true CN100549296C (en) | 2009-10-14 |
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|---|---|---|---|
| CNB200710071852XA Expired - Fee Related CN100549296C (en) | 2007-03-07 | 2007-03-07 | The application of shape memory polymer paper |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8815054B2 (en) | 2012-10-05 | 2014-08-26 | The Procter & Gamble Company | Methods for making fibrous paper structures utilizing waterborne shape memory polymers |
| WO2018076278A1 (en) * | 2016-10-28 | 2018-05-03 | 深圳大学 | Shape memory plastic paper, preparation method therefor and application thereof |
-
2007
- 2007-03-07 CN CNB200710071852XA patent/CN100549296C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 形状记忆聚合物的发展及应用. 朱光明.工程塑料应用，第30卷第8期. 2002 |
| 形状记忆聚合物的发展及应用. 朱光明.工程塑料应用，第30卷第8期. 2002 * |
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| CN101016708A (en) | 2007-08-15 |
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