CN103602281A - Self-hidden magnetic glue and preparation method thereof - Google Patents
Self-hidden magnetic glue and preparation method thereof Download PDFInfo
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- CN103602281A CN103602281A CN201310562667.6A CN201310562667A CN103602281A CN 103602281 A CN103602281 A CN 103602281A CN 201310562667 A CN201310562667 A CN 201310562667A CN 103602281 A CN103602281 A CN 103602281A
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Abstract
The invention discloses self-hidden magnetic glue and a preparation method thereof, wherein the self-hidden magnetic glue comprises glue and magnetic dispersion liquid, and the magnetic dispersion liquid comprises magnetic particles, a solvent and water; cobalt-based particles or iron-based particles are selected as the magnetic particles. According to the self-hidden magnetic glue and preparation method thereof, raw materials can be saved for preparing magnetic stripes, nanoparticles are evenly dispersed in a matrix, the self-hidden function can be realized after the self-hidden magnetic glue is coated, thus meeting the various hidden and antitheft demands. A hidden book magnetic stripe can be applied in various fields with higher hidden and antitheft requirements, such as a library, a book market, a shopping mall and the like.
Description
Technical field
The present invention relates to a kind of hidden magnetic glue and preparation method thereof.
Background technology
Magnetic stripe is the molecular material of magnetic oxygenated grain aligning by thin layer.With resin glue, be bonded in closely on nonmagnetic media such as paper or plastics.Magnetic stripe can be divided into two kinds of cobalt-based magnetic stripe and iron-based magnetic stripes according to basic material in the market.The main component of cobalt-based magnetic stripe is cobalt metal, and the main component of iron-based magnetic stripe is pure iron.Whether can charging-erasing magnetic according to magnetic stripe in using, can be divided into again compound magnetic strip and permanent type magnetic stripe.
Cobalt-based magnetic stripe and iron-based magnetic stripe be all directly with bar shaped solids applications in various magnetic cards or burglary-resisting system, the magnetic stripe amount that each magnetic card is used like this will increase greatly, causes the waste of the resources such as cobalt, iron simultaneously.
The magnetic stripe used of books of distribution in society is all directly to fold up in book after directly cobalt-based magnetic stripe or iron-based magnetic stripe being stained with to non-setting adhesive, is easy to be found by reader, gives immoral reader's opportunity, brings massive losses to books manager or manager.
Summary of the invention
The object of this invention is to provide a kind of from hidden magnetic glue and preparation method thereof, to overcome the existing problem existing.
Of the present inventionly from hidden magnetic glue, glue and magnetic dispersion liquid, consist of, weight ratio is, magnetic dispersion liquid: glue=1: 1～3, and preferred, weight ratio is, magnetic dispersion liquid: glue=1: 1.5～2;
Described magnetic dispersion liquid, is comprised of magnetic particle, solvent and water;
The parts by weight of described each component of magnetic dispersion liquid are:
100 parts of solvents
20～90 parts of magnetic particles
80～180 parts, water
Preferably, the parts by weight of described each component of magnetic dispersion liquid are:
100 parts of solvents
40～70 parts of magnetic particles
100～160 parts, water
Described magnetic particle is selected from cobalt-based particle or iron-based particle, and particle diameter is 10-50 nanometer;
Described cobalt-based particle preferable alloy Co or Co
3o
4;
The preferred pure Fe of described iron-based particle or Fe
3o
4or γ-Fe
2o
3;
Described solvent is saturated fatty acid, preferably the salt of oleic acid, linolic acid or linolenic acid and their derivative and soap class, 12 alkanoic acids, dioctyl sulfonation Soduxin etc.;
Described glue is selected from inorganic sizing agent, as water glass, cement or gypsum etc.; Or organic sizing agent, as thermoplastic resin, thermosetting resin or rubber based adhesives etc.; Preferred glue is formaldehyde polyvinyl acetal water, is commonly called as 107 glue.
Preparation method of the present invention, comprises the steps:
Magnetic particle is dispersed in solvent, then adds water to disperse, obtain magnetic dispersion liquid, finally magnetic dispersion liquid is mixed with glue, can obtain from hidden magnetic glue.
Obtain from hidden magnetic glue, can be used in books burglary-resisting system, using method is as follows:
1) open bottle cap, with hairbrush, pick magnetic glue;
2) then coat arbitrary position of books, after glue is dry, then be coated with one deck in the above; (coating number of times require according to application scenario and magnetic and determine).
3) etc. glue had both derived from Hidden books magnetic stripe after dry.
4) this magnetic glue not only can directly be applied to books, and can also be used to label on pinup picture book, borrows registration card, barcode, books package encapsulation etc.
Beneficial effect of the present invention is as follows:
1, Hidden books magnetic stripe of the present invention has been realized the joint of magnetic particle and adhesive matrix, for preparing magnetic stripe, has saved starting material.
2, Hidden books magnetic stripe of the present invention adopts magnetic nanoparticle, and by the modification of nanoparticle having been realized to dispersed in matrix of nanoparticle, meets the requirement of emerging nanotechnology.
What 3, the stealthy glue class of the present invention magnetic stripe adopted is water white matrix tackiness agent, after coating, realized it from hidden function, meet numerous hidden theft-proof requirements.
Hidden books magnetic stripe of the present invention can be applicable to numerous hidden antitheft fields of having relatively high expectations, as: Library, Book Market, megastore etc.
Figure of description
The finishing process of Fig. 1 magnetic nanoparticle, wherein, schematic diagram when Fig. 1-1 is dispersed in water for magnetic nanoparticle, Fig. 1-2 is the schematic diagram of the magnetic nanoparticle after modifying.
The dispersion transmission electron microscope picture (2:3) of Fig. 2 magnetic nanoparticle in Matrix adhesive.
Fig. 3 magnetic glue charging-erasing magnetic stability cycle diagram.
The dispersion transmission electron microscope picture (1:2) of Fig. 4 magnetic nanoparticle in Matrix adhesive.
Embodiment
Embodiment 1
1, the preparation of formaldehyde polyvinyl acetal water
First to being equipped with the deionized water that adds 70g in the reactor of agitator, cold stubborn device, thermometer, heat up, open and stir.Secondly slowly drop into 1799 type polyvinyl alcohol of 20g, finish polyvinyl alcohol before being preferably in 60 ℃, build hole cover, be warming up between 90 ℃-95 ℃, constant temperature 1h, dissolves polyvinyl alcohol completely.Then drip the hydrochloric acid soln that 8ml prepares, PH is controlled within the scope of 2-3, continues to stir 30min.Then drip 10ml formaldehyde solution, temperature is controlled at 85 ℃ of left and right, and time for adding is controlled at 30min, and 30min is reacted in isothermal reaction again at 85 ℃.Finally be cooled to 60 ℃, hydro-oxidation sodium solution is adjusted in PH to 7-8 scope.Continue to be cooled to after room temperature, blowing, obtains formaldehyde polyvinyl acetal water finished product, and product need be placed in an encloses container, prevents moisture evaporation or colloid surface skinning.
2, the modifying and decorating of magnetic nanoparticle
With unsaturated fatty acids (as the salt of oleic acid, linolic acid, linolenic acid and their derivative and soap class, 12 alkanoic acids, dioctyl sulfonation Soduxin etc.), magnetic nano-particle is carried out to modification (selecting oleic acid herein), then divide to calculate in suitable quantity of water, to form uniform magnetic dispersion liquid.Concrete steps are as follows: by particle diameter, be the Co of the 40g of 10 nanometers
3o
4mix with 100g oleic acid, be then dispersed in 100g water, obtain magnetic dispersion liquid.Finishing process as shown in Figure 1.
3, the preparation of magnetic glue
Scattered magnetic liquid and the formaldehyde polyvinyl acetal water that obtains above are evenly mixed by the part by weight of 2:3, obtain magnetic transparent glue.The results are shown in Figure 2, from Fig. 2., magnetic nanoparticle is uniformly dispersed in formaldehyde polyvinyl acetal water.
4, the use of magnetic glue
With brushing, pick magnetic gum brush in the position that needs of books, which floor can be brushed more according to demand, then allow its seasoning.Finally it is carried out to magnetic size and charging-erasing magnetic Detection of Stability, as shown in Figure 3, the charging-erasing magnetic stability of the stealthy magnetic stripe that this magnetic glue forms is better for result.
Embodiment 2
1, the preparation of formaldehyde polyvinyl acetal water
First to being equipped with the deionized water that adds 70g in the reactor of agitator, cold stubborn device, thermometer, heat up, open and stir.Secondly slowly drop into 1799 type polyvinyl alcohol of 20g, finish polyvinyl alcohol before being preferably in 60 ℃, build hole cover, be warming up between 90 ℃-95 ℃, constant temperature 1h, dissolves polyvinyl alcohol completely.Then drip the hydrochloric acid soln that 8ml prepares, PH is controlled within the scope of 2-3, continues to stir 30min.Then drip 10ml formaldehyde solution, temperature is controlled at 85 ℃ of left and right, and time for adding is controlled at 30min, and 30min is reacted in isothermal reaction again at 85 ℃.Finally be cooled to 60 ℃, hydro-oxidation sodium solution is adjusted in PH to 7-8 scope.Continue to be cooled to after room temperature, blowing, obtains formaldehyde polyvinyl acetal water finished product, and product need be placed in an encloses container, prevents moisture evaporation or colloid surface skinning.
2, the modifying and decorating of magnetic nanoparticle
With unsaturated fatty acids (as the salt of oleic acid, linolic acid, linolenic acid and their derivative and soap class, 12 alkanoic acids, dioctyl sulfonation Soduxin etc.), magnetic nano-particle is carried out to modification (selecting oleic acid herein), then divide to calculate in suitable quantity of water, to form uniform magnetic dispersion liquid.Concrete steps are as follows: by particle diameter, be the Co of the 40g of 50 nanometers
3o
4mix with 100g oleic acid, be then dispersed in 100g water, obtain magnetic dispersion liquid.
3, the preparation of magnetic glue
Scattered magnetic liquid and the formaldehyde polyvinyl acetal water that obtains above are evenly mixed by the part by weight of 1:2, obtain magnetic transparent glue.The results are shown in Figure 4, from Fig. 4., magnetic nanoparticle is uniformly dispersed in formaldehyde polyvinyl acetal water.
5, the use of magnetic glue
With brushing, pick magnetic gum brush in the position that needs of books, which floor can be brushed more according to demand, then allow its seasoning.Finally it is carried out to magnetic size and charging-erasing magnetic Detection of Stability.
Claims (10)
1. from hidden magnetic glue, it is characterized in that, by glue and magnetic dispersion liquid, formed,
Described magnetic dispersion liquid, is comprised of magnetic particle, solvent and water;
Described magnetic particle is selected from cobalt-based particle or iron-based particle.
2. according to claim 1ly from hidden magnetic glue, it is characterized in that, weight ratio is, magnetic dispersion liquid: glue=1: 1～3.
3. according to claim 1ly from hidden magnetic glue, it is characterized in that, weight ratio is, magnetic dispersion liquid: glue=1: 1.5～2.
4. according to claim 1ly from hidden magnetic glue, it is characterized in that, described magnetic particle particle diameter is 10-50 nanometer.
According to described in claim 1～4 any one from hidden magnetic glue, it is characterized in that, described cobalt-based particle is Co or Co
3o
4; Described iron-based particle is pure Fe, Fe
3o
4or γ-Fe
2o
3.
According to described in claim 1～4 any one from hidden magnetic glue, it is characterized in that, the parts by weight of described each component of magnetic dispersion liquid are:
100 parts of solvents
20～90 parts of magnetic particles
80～180 parts, water
Described solvent is saturated fatty acid, preferably the salt of oleic acid, linolic acid or linolenic acid and their derivative and soap class, 12 alkanoic acids, dioctyl sulfonation Soduxin.
7. according to claim 5ly from hidden magnetic glue, it is characterized in that, the parts by weight of described each component of magnetic dispersion liquid are:
100 parts of solvents
20～90 parts of magnetic particles
80～180 parts, water
Described solvent is saturated fatty acid, preferably the salt of oleic acid, linolic acid or linolenic acid and their derivative and soap class, 12 alkanoic acids, dioctyl sulfonation Soduxin.
8. according to claim 1ly from hidden magnetic glue, it is characterized in that, described glue is selected from inorganic sizing agent, as water glass, cement or gypsum, or organic sizing agent.
9. according to claim 1ly from hidden magnetic glue, it is characterized in that, described glue is selected from formaldehyde polyvinyl acetal water.
10. according to the preparation method from hidden magnetic glue described in claim 1～9 any one, it is characterized in that, comprise the steps: magnetic particle to be dispersed in solvent, then add water to disperse, obtain magnetic dispersion liquid, finally magnetic dispersion liquid is mixed with glue, can obtain from hidden magnetic glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310562667.6A CN103602281A (en) | 2013-11-13 | 2013-11-13 | Self-hidden magnetic glue and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310562667.6A CN103602281A (en) | 2013-11-13 | 2013-11-13 | Self-hidden magnetic glue and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103602281A true CN103602281A (en) | 2014-02-26 |
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ID=50120552
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310562667.6A Pending CN103602281A (en) | 2013-11-13 | 2013-11-13 | Self-hidden magnetic glue and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265214A (en) * | 2021-05-08 | 2021-08-17 | 青岛佳合永润化妆用品有限公司 | Magnetic glue for manufacturing false eyelashes, method for manufacturing false eyelashes and product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1548494A (en) * | 2003-05-06 | 2004-11-24 | 千如电机工业股份有限公司 | Epoxy resin and inductor assembly for preventing electromagnetic interference |
| CN102942886A (en) * | 2012-11-16 | 2013-02-27 | 明尼苏达矿业制造特殊材料（上海）有限公司 | Magneto-conductivity gluewater and application thereof |
-
2013
- 2013-11-13 CN CN201310562667.6A patent/CN103602281A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1548494A (en) * | 2003-05-06 | 2004-11-24 | 千如电机工业股份有限公司 | Epoxy resin and inductor assembly for preventing electromagnetic interference |
| CN102942886A (en) * | 2012-11-16 | 2013-02-27 | 明尼苏达矿业制造特殊材料（上海）有限公司 | Magneto-conductivity gluewater and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| 宋启煌等: "《精细化工工艺学》", 31 August 2013, 化学工业出版社 * |
| 李金伴等: "《电气材料手册》", 31 January 2006, 化学工业出版社 * |
| 杨华: "水基四氧化三铁磁流体的制备及其性能研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265214A (en) * | 2021-05-08 | 2021-08-17 | 青岛佳合永润化妆用品有限公司 | Magnetic glue for manufacturing false eyelashes, method for manufacturing false eyelashes and product |
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Application publication date: 20140226 |