CN1990804A - Pressure-sensitive adhesive with water sensitivity and preparation method thereof - Google Patents
Pressure-sensitive adhesive with water sensitivity and preparation method thereof Download PDFInfo
- Publication number
- CN1990804A CN1990804A CN 200510121475 CN200510121475A CN1990804A CN 1990804 A CN1990804 A CN 1990804A CN 200510121475 CN200510121475 CN 200510121475 CN 200510121475 A CN200510121475 A CN 200510121475A CN 1990804 A CN1990804 A CN 1990804A
- Authority
- CN
- China
- Prior art keywords
- water
- sensitive adhesive
- pressure sensitive
- small molecules
- polyvinyl alcohol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 30
- 238000002360 preparation method Methods 0.000 title description 3
- 230000035945 sensitivity Effects 0.000 title description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 7
- 238000006359 acetalization reaction Methods 0.000 claims abstract description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 24
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 23
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 23
- 150000003384 small molecules Chemical class 0.000 claims description 15
- AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 10
- 230000002378 acidificating effect Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000000376 reactant Substances 0.000 claims description 9
- 239000000123 paper Substances 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 3
- 238000006136 alcoholysis reaction Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 239000002655 kraft paper Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 2
- 239000003292 glue Substances 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 235000008708 Morus alba Nutrition 0.000 description 3
- 240000000249 Morus alba Species 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- KNNPTLFTAWALOI-UHFFFAOYSA-N acetaldehyde;formaldehyde Chemical compound O=C.CC=O KNNPTLFTAWALOI-UHFFFAOYSA-N 0.000 description 1
- -1 aldehyde radical small molecules Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
Abstract
The invention relates to a water- sensitive pressure sensitive adhesive paper and the method for preparing the same. It comprises pressure sensitive adhesive, which is prepared with polyvinyl acetal with its degree of acetalization being 15- 65% by molar proportion; the viscosity in glue line is strong under wet condition and it becomes lower when it is under dry condition, which just meets the paper industry demand of paper protection, especially for some thin plastic material.
Description
Technical field
It is a kind of pressure-sensitive gummed paper of water-sensitive characteristic and preparation method thereof that has that the present invention is specifically related to.
Background technology
At present; the glue that surface protection paper industry requirement applies has good tack and holds viscosity; the ideal state be the interface viscous force not in time prolongation and increase; but well-known pressure sensitive adhesive is because the cause of self creep properties; interfacial adhesion strength is enhanced in time within a certain period of time; thereby cause the difficulty of peeling off again; water sensitivity pressure sensitive adhesive before is mainly used in wet buffalo mulberry paper tape industry; general other the xanthan gum of treated starch or some that adopts; the interfacial adhesion strength height; but internal cohesive energy is low, exists the residual problem of coming unstuck if be applied to the surface protection industry.
Summary of the invention
The objective of the invention is to solve above-mentioned shortcoming, and provide a kind of being manufactured on to have higher interfacial adhesion strength under the wet condition, and under drying conditions bonding strength lower have water-sensitive characteristic pressure sensitive adhesive and preparation method thereof.
For achieving the above object: comprise pressure sensitive adhesive, its pressure sensitive adhesive is the polyvinyl acetal formation of 15%～65% (molar percentage) by degree of acetalization.
Described polyvinyl acetal by the alcoholysis degree of reactant polyvinyl alcohol for greater than 70%, the small molecules of reactant aldehyde radical and an acidic catalyst and water constitutes.
The small molecules concentration of described aldehyde radical is 15 to 80%, and the small molecules optimum amount of aldehyde radical is 30 to 70%, and the small molecules of aldehyde radical can be formaldehyde, acetaldehyde, the small molecules of butyraldehyde-n or isobutyric aldehyde etc.; Described catalyst levels is 1 to 5%, and an acidic catalyst can be concentrated hydrochloric acid, sulfuric acid or Louis's acids.
Be provided with kraft paper or parchment as protection sheet the above-mentioned pressure sensitive adhesive of protection sheet surface-coated.
The pressure sensitive adhesive manufacture method is characterized in that comprising the steps:
(1) polyvinyl alcohol dissolves under 60 to 100 ℃ of temperature with the water more than 3 times, cools to then below 60 ℃ to add an acidic catalyst, and consumption is 1～5% (weight percent) of polyvinyl alcohol, stirs 10 minutes.
(2) drip the reactant that contains aldehyde radical, time is greater than 15 minutes, consumption is 15 to 80% (mol ratios of aldehyde radical and hydroxyl) of polyvinyl alcohol, after finishing 30～50 ℃ of progressively temperature reactions 1 to 3 hour, temperature was fixed on 60 ℃ of reactions greater than 2 hours then, be warmed up to more than 75 ℃ after reaction is finished, product is separated out from water.
(3) product washing and drying, the use water more than 2 times and the mixture dissolving (ratio is 4: 1～1: 4, and optimum proportion is 2: 1～1: 2) of industrial spirit are being diluted with water to suitable viscosity then, are coated on to dry on the protection sheet to get final product.
Beneficial effect of the present invention: under moist water state; glue-line viscosity is in strong state; and dry back glue-line viscosity is in low state; just in time satisfied the demand of protection sheet industry; particularly to some thin plastic plates, interfacial adhesion strength can carry out various aftertreatments than higher under moisture state; dry back viscous force is lower, is convenient to peel off.
Description of drawings
Fig. 1 is that pressure sensitive adhesive of the present invention is placed on structural representation on the protection sheet.
Embodiment
Below in conjunction with accompanying drawing and enforcement invention is further specified.Protection sheet 1, pressure sensitive adhesive 2
As shown in the figure, comprise pressure sensitive adhesive, its pressure sensitive adhesive is the polyvinyl acetal formation of 15%～65% (molar percentage) by degree of acetalization.
Described polyvinyl acetal by the alcoholysis degree of reactant polyvinyl alcohol for greater than 70%, the small molecules of reactant aldehyde radical and an acidic catalyst and water constitutes.
The small molecules concentration of described aldehyde radical is 15 to 80%, and the small molecules optimum amount of aldehyde radical is 30 to 70%, and the small molecules of aldehyde radical can be dropping aldehyde, add acetaldehyde, the small molecules of butyraldehyde-n or isobutyric aldehyde etc.; Described catalyzer is 1 to 5%, and an acidic catalyst can be concentrated hydrochloric acid, sulfuric acid or Louis's acids.
Be provided with kraft paper or parchment as protection sheet the above-mentioned pressure sensitive adhesive of protection sheet surface-coated.
The pressure sensitive adhesive manufacture method is characterized in that comprising the steps:
(1) polyvinyl alcohol dissolves under 60 to 100 ℃ of temperature with the water more than 3 times, cools to then below 60 ℃ to add an acidic catalyst, and consumption is 1～5% (weight percent) of polyvinyl alcohol, stirs 10 minutes.
(2) drip the reactant that contains aldehyde radical, time is greater than 15 minutes, consumption is 15 to 80% ratio of hydroxyl (aldehyde radicals with) of polyvinyl alcohol, after finishing 30～50 ℃ of progressively temperature reactions 1 to 3 hour, temperature was fixed on 60 ℃ of reactions greater than 2 hours then, be warmed up to more than 75 ℃ after reaction is finished, product is separated out from water.
(3) product washing and drying, the use water more than 2 times and the mixture dissolving (ratio is 4: 1～1: 4, and optimum proportion is 2: 1～1: 2) of industrial spirit are being diluted with water to suitable viscosity then, are coated on to dry on the protection sheet to get final product.
Glue synthesis technique among the embodiment and coating preceding method are carried out, and the solid content of glue is 8～20%, the polyvinyl alcohol water dissolved dilution in the comparative example 1, and solid content is 12%.Wet buffalo mulberry paper in the comparative example 2 is commercially available product.
Table 1 starting material character
| Water-soluble polymer | The name of an article | Degree of hydrolysis | Manufacturer |
| (A) | Polyvinyl alcohol | ＞90％ | GuiZhou ShuiJing Chemical Engineering Co., Ltd |
| Contain the aldehyde radical small molecules | The name of an article | Manufacturer | |
| (B) | Butyraldehyde-n | Jilin Chemical Industry Company | |
| Formaldehyde acetaldehyde isobutyric aldehyde | Commercial reagent, commercial reagent, commercial reagent |
Catalyzer name of an article manufacturer
(C) commercial reagent of hydrochloric acid 35%
| Table 2, the synthetic glue proportioning raw materials | A | B | C |
| Embodiment 1 | Polyvinyl alcohol 100 | Butyraldehyde-n 30 | Hydrochloric acid 2 |
| Embodiment 2 | Polyvinyl alcohol 100 | Butyraldehyde-n 40 | Hydrochloric acid 2 |
| Embodiment 3 | Polyvinyl alcohol 100 | Butyraldehyde-n 50 | Hydrochloric acid 2 |
| Embodiment 4 | Polyvinyl alcohol 100 | Butyraldehyde-n 65 | Hydrochloric acid 2 |
| Embodiment 5 | Polyvinyl alcohol 100 | Butyraldehyde-n 80 | Hydrochloric acid 2 |
| Embodiment 6 | Polyvinyl alcohol 100 | Formaldehyde 60 | Hydrochloric acid 2 |
| Embodiment 7 | Polyvinyl alcohol 100 | Acetaldehyde 65 | Hydrochloric acid 2 |
| Embodiment 8 | Polyvinyl alcohol 100 | Isobutyric aldehyde 60 | Hydrochloric acid 2 |
| Comparative example 1 | Polyvinyl alcohol 100 | ||
| Comparative example 2 | Wet buffalo mulberry paper | ||
| Table 3 water-sensitive protection sheet performance relatively | Wet 30 minutes bonding strengths (dampness) of water | Wet 4 hours bonding strengths (drying) of water | Peeled off noresidue after the drying |
| Embodiment 1 | 15g/cm | Naturally peel off | Have |
| Embodiment 2 | 22g/cm | 3g/cm | Do not have |
| Embodiment 3 | 30g/cm | 6g/cm | Do not have |
| Embodiment 4 | 45g/cm | 25g/cm | Do not have |
| Embodiment 5 | 18g/cm | Naturally peel off | Do not have |
| Embodiment 6 | 10g/cm | Naturally peel off | Do not have |
| Embodiment 7 | 15g/cm | Naturally peel off | Do not have |
| Embodiment 8 | 36g/cm | 15g/cm | Do not have |
| Comparative example 1 | 10g/cm | Naturally peel off | Have |
| Comparative example 2 | 120g/cm | 90g/cm | Serious cull |
Stripping strength is represented with 180 ° of stripping strengths, during test pressure-sensitive gummed paper is cut into the sample of 2.5 * 30cm, the synthetic glass surface of light will be attached at behind the evenly wet water in its surface, with the rubber roll-in of 2 kilogram weights 3 times, naturally place, room temperature is 23 ± 2 ℃, and relative humidity is 45 to 60%, embodiment 2,3,4 under this condition, and the pressure sensitive adhesive of described structure is that the best is peeled off effect.
Claims (5)
1, a kind of have a water-sensitive characteristic pressure sensitive adhesive, comprises pressure sensitive adhesive, it is characterized in that being: pressure sensitive adhesive is that the polyvinyl acetal of 15%～65% (molar percentage) constitutes by degree of acetalization.
2, a kind of pressure-sensitive gummed paper of water-sensitive characteristic that has according to claim 1 is characterized in that: described polyvinyl acetal by the alcoholysis degree of reactant polyvinyl alcohol for greater than 70%, the small molecules of reactant aldehyde radical and an acidic catalyst and water constitutes.
3, a kind of water-sensitive characteristic pressure sensitive adhesive that has according to claim 2, it is characterized in that: the small molecules concentration of described aldehyde radical is 15 to 80%, the small molecules optimum amount of aldehyde radical is 30 to 70%, and the small molecules of aldehyde radical can be formaldehyde, acetaldehyde, the small molecules of butyraldehyde-n or isobutyric aldehyde etc.; Described catalyzer is 1 to 5%, and an acidic catalyst can be hydrochloric acid, sulfuric acid or Louis's acids.
4, according to the described a kind of water-sensitive characteristic pressure sensitive adhesive that has of claim, it is characterized in that: be provided with kraft paper or parchment as protection sheet the above-mentioned pressure sensitive adhesive of protection sheet surface-coated.
5, pressure sensitive adhesive manufacture method is characterized in that comprising the steps:
(1) polyvinyl alcohol dissolves under 60 to 100 ℃ of temperature with the water more than 3 times, cools to then below 60 ℃ to add an acidic catalyst, and consumption is 1～5% (weight percent) of polyvinyl alcohol, stirs 10 minutes.
(2) drip the reactant that contains aldehyde radical, time is greater than 15 minutes, consumption is 15 to 80% ratio of hydroxyl (aldehyde radicals with) of polyvinyl alcohol, after finishing 30～50 ℃ of progressively temperature reactions 1 to 3 hour, temperature was fixed on 60 ℃ of reactions greater than 2 hours then, be warmed up to more than 75 ℃ after reaction is finished, product is separated out from water.
(3) product washing and drying, the use water more than 2 times and the mixture dissolving (ratio is 4: 1～1: 4, and optimum proportion is 2: 1～1: 2) of industrial spirit are being diluted with water to suitable viscosity then, are coated on to dry on the protection sheet to get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101214757A CN100572480C (en) | 2005-12-31 | 2005-12-31 | A kind of have water-sensitive characteristic pressure sensitive adhesive and a manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101214757A CN100572480C (en) | 2005-12-31 | 2005-12-31 | A kind of have water-sensitive characteristic pressure sensitive adhesive and a manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1990804A true CN1990804A (en) | 2007-07-04 |
| CN100572480C CN100572480C (en) | 2009-12-23 |
Family
ID=38213350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101214757A Active CN100572480C (en) | 2005-12-31 | 2005-12-31 | A kind of have water-sensitive characteristic pressure sensitive adhesive and a manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100572480C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649169B (en) * | 2009-08-31 | 2012-12-12 | 广东达美新材料有限公司 | Water sensitivity pressure-sensitive adhesive for protection paper |
-
2005
- 2005-12-31 CN CNB2005101214757A patent/CN100572480C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649169B (en) * | 2009-08-31 | 2012-12-12 | 广东达美新材料有限公司 | Water sensitivity pressure-sensitive adhesive for protection paper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100572480C (en) | 2009-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG TAMAY NEW MATERIALS CO., LTD. Free format text: FORMER NAME: GUANGDONG TAMAY ADHESIVE PRODUCT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528325 Chong Chong Industrial Zone, new town, Shunde District, Guangdong, Foshan Patentee after: Guangdong Tamay New Materials Co., Ltd. Address before: 528325 Chong Chong Industrial Zone, new town, Shunde District, Guangdong, Foshan Patentee before: Guangdong Tamay Adhesive Product Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160204 Address after: Qingfeng town, Gangbei District, Guigang City in the Guangxi Zhuang Autonomous Region Tan Village 537100 Tallowtree Tun No. 144-1 Patentee after: Huang Dongjiu Address before: 528325 Chong Chong Industrial Zone, new town, Shunde District, Guangdong, Foshan Patentee before: Guangdong Tamay New Materials Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170329 Address after: 519000 Guangdong city of Zhuhai province Hengqin Baohua Road No. 6, room 105 -1866 Patentee after: Zhuhai Hongyuan Management Consulting Co. Ltd. Address before: Qingfeng town of Guangxi Province in 537100 Gangbei District, Guigang City, Qin Tun Village Tallowtree No. 144-1 Patentee before: Huang Dongjiu |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170612 Address after: 214181 Jiangsu Province, Wuxi Huishan industrial agglomeration area north road transformation Patentee after: Wuxi Delta new material Co., Ltd. Address before: 519000 Guangdong city of Zhuhai province Hengqin Baohua Road No. 6, room 105 -1866 Patentee before: Zhuhai Hongyuan Management Consulting Co. Ltd. |