CN112898918A - Biodegradable pressure-sensitive adhesive composition - Google Patents
Biodegradable pressure-sensitive adhesive composition Download PDFInfo
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- CN112898918A CN112898918A CN202110103038.1A CN202110103038A CN112898918A CN 112898918 A CN112898918 A CN 112898918A CN 202110103038 A CN202110103038 A CN 202110103038A CN 112898918 A CN112898918 A CN 112898918A
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- Prior art keywords
- polymer
- degradable
- sensitive adhesive
- parts
- natural
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/02—Starch; Degradation products thereof, e.g. dextrin
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/26—Presence of textile or fabric
- C09J2400/263—Presence of textile or fabric in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a biodegradable pressure-sensitive adhesive composition, which relates to the technical field of pressure-sensitive adhesives and comprises the following components in parts by weight: 100 parts of high polymer, 10-200 parts of degradable high polymer and 5-70 parts of degradable softener; the polymer is natural rubber; the degradable polymer is natural polymer or synthetic polymer; wherein the natural polymer is prepared by mixing one or more of polysaccharides, Mel, protein and its modified compounds; the synthetic polymer is formed by mixing one or more of polycaprolactone, polyvinyl alcohol, aliphatic polyester and derivatives thereof; the degradable softener is prepared by mixing one or more of natural oil, natural wax, honey and flowing paraffin. Based on high polymers such as natural rubber, the coating is soft and thick, can be decomposed and disappear when placed in nature, and effectively protects the environment.
Description
Technical Field
The invention relates to the technical field of pressure-sensitive adhesives, in particular to a biodegradable pressure-sensitive adhesive composition.
Background
Since adhesive tape products produced by coating glues and compositions thereof on various substrates have various excellent properties, they have been widely used so far by both industry and general consumers. However, because of the special properties of the glue product, it is almost impossible to recycle it. If the plant is placed in the field, the plant can keep the original shape for a long time, and the risk of environmental pollution is caused. As a method for dealing with this, there have been proposed a method of producing a product soluble in water or an alkaline aqueous solution, a method of using a substrate containing a biological substance such as collagen, and a method of using a tape in which a degradable substrate is coated with rubber or the like. Although an adhesive tape in which a water-soluble glue is applied to a paper substrate has been put into practical use, the field of use of glue products is wide, and there is generally no product in which both excellent adhesive properties and rapid decomposition after disposal are compatible with each other, and thus, there is an urgent need for a biodegradable pressure-sensitive adhesive composition.
Disclosure of Invention
The invention aims to provide a biodegradable pressure-sensitive adhesive composition with reasonable design aiming at the defects and shortcomings of the prior art, which is based on high polymers such as natural rubber, is soft and thick to coat, can be decomposed and disappear when placed in nature, and effectively protects the environment.
In order to achieve the purpose, the invention adopts the following technical scheme: the composition comprises the following components in parts by weight: 100 parts of high polymer, 10-200 parts of degradable high polymer and 5-70 parts of degradable softener;
the polymer is natural rubber;
the degradable polymer is natural polymer or synthetic polymer; wherein the natural polymer is prepared by mixing one or more of polysaccharides, Mel, protein and its modified compounds; the synthetic polymer is formed by mixing one or more of polycaprolactone, polyvinyl alcohol, aliphatic polyester and derivatives thereof;
the degradable softener is prepared by mixing one or more of natural oil, natural wax, honey and flowing paraffin.
Furthermore, the weight portion of the degradable polymer is 80-120.
Further, the weight portion of the degradable softener is 30-40.
The working principle of the invention is as follows: after the pressure-sensitive adhesive composition is buried in the ground, the pressure-sensitive adhesive composition is firstly decomposed under the action of microorganisms, oxygen and water contained in the ground permeate into the pressure-sensitive adhesive composition, and oxidation and water decomposition are rapidly carried out, so that the decomposition of the microorganisms is easier to carry out, and the collapse and the decomposition of the pressure-sensitive adhesive composition are promoted.
After the components are adopted, the invention has the beneficial effects that: the invention provides a biodegradable pressure-sensitive adhesive composition which is soft and can be thickly coated and is easy to adhere to a rough surface; the degradable pressure-sensitive adhesive tape can be widely used after being applied to the pressure-sensitive adhesive tape, and can be quickly and naturally decomposed in nature due to the degradable components, so that the environment is effectively improved.
Description of the drawings:
FIG. 1 is a table showing data of examples and comparative examples of the present invention.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the first embodiment:
the components in parts by weight are as follows: adding 100 parts of natural rubber, 100 parts of petroleum resin, 120 parts of corn starch, 10 parts of honey, 30 parts of flowing paraffin and 2 parts of an aging inhibitor into a mixing roll, and mixing for 8 hours at the temperature of 75 ℃ to prepare a pressure-sensitive adhesive composition A; coating the pressure-sensitive adhesive composition A on a PET film, wherein the thickness of the coated PET film is about 500 mu m, cutting the PET film with the thickness into sample pieces of 50mm multiplied by 100mm, putting the sample pieces into an aluminum container, burying the aluminum container in about 4 liters of yard soil, and supplying water at 40 ℃ and 90% RH at any time for 6 months; after standing for 6 months, investigating a courtyard soil sample, and finding that the pressure-sensitive adhesive composition is mildewed integrally; after the sample piece is washed away by water, the pressure-sensitive adhesive composition on the sample piece is dispersed and deformed, and falls off from the PET film without residual adhesive.
Comparative example one:
the following components in parts by weight: adding 100 parts of natural rubber, 100 parts of petroleum resin, 200 parts of calcium carbonate, 50 parts of industrial oil and 2 parts of an aging inhibitor into a mixing roll, and mixing for 8 hours at the temperature of 75 ℃ to prepare a pressure-sensitive adhesive composition B; coating the pressure-sensitive adhesive composition on a PET film, wherein the thickness of the coated PET film is about 500 mu m, cutting the PET film with the thickness into sample pieces of 50mm multiplied by 100mm, putting the sample pieces into an aluminum container, burying the aluminum container in 4 liters of yard soil, and supplying water at 40 ℃ and 90% RH at any time for 6 months; after standing for 6 months, the sample pieces were washed to remove soil therefrom, and dried to measure the weight change, and the net weight loss of the sample pieces was about 5%.
Example two:
the pressure-sensitive adhesive composition a in the first example was coated on a nonwoven fabric subjected to back surface treatment to prepare a pressure-sensitive adhesive tape, and the adhesive force of the pressure-sensitive adhesive tape was measured, and as a result, the adhesive force was found to be 5.9N/cm, the initial tack was 24, and the holding power was 18min (40 ℃); compared with the results of comparative example two, the characteristics of the pressure-sensitive adhesive tape were almost the same as those of the pressure-sensitive adhesive tape in the prior art made in comparative example two; in addition, the pressure-sensitive adhesive tape prepared in example two was buried in the soil in the same operation as in example one, and the weight change after 1 month was measured to find that the weight was reduced by about 22%.
Comparative example two:
the pressure-sensitive adhesive composition B of comparative example A was applied to a nonwoven fabric subjected to back surface treatment to prepare a pressure-sensitive adhesive tape of the prior art, and the adhesive force was measured to find that the adhesive force was 4.5N/cm, the initial tack was 24, and the holding force was 18min (40 ℃ C.). In addition, the pressure-sensitive adhesive tape of the prior art prepared in comparative example two was buried in the soil in the same operation as in example one, and the weight change after 1 month was measured to find that the weight was reduced by about 1%.
The working principle of the specific embodiment is as follows: after the pressure-sensitive adhesive composition is buried in the ground, the pressure-sensitive adhesive composition is firstly decomposed under the action of microorganisms, oxygen and water contained in the ground permeate into the pressure-sensitive adhesive composition, and oxidation and water decomposition are rapidly carried out, so that the decomposition of the microorganisms is easier to carry out, and the collapse and the decomposition of the pressure-sensitive adhesive composition are promoted.
After the components are adopted, the beneficial effects of the specific embodiment are as follows: the present embodiment provides a biodegradable pressure-sensitive adhesive composition that is soft and thick-coatable and also adheres readily to rough surfaces; the degradable pressure-sensitive adhesive tape can be widely used after being applied to the pressure-sensitive adhesive tape, and can be quickly and naturally decomposed in nature due to the degradable components, so that the environment is effectively improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (3)
1. A biodegradable pressure-sensitive adhesive composition characterized by: the composition comprises the following components in parts by weight: 100 parts of high polymer, 10-200 parts of degradable high polymer and 5-70 parts of degradable softener;
the polymer is natural rubber;
the degradable polymer is natural polymer or synthetic polymer; wherein the natural polymer is prepared by mixing one or more of polysaccharides, Mel, protein and its modified compounds; the synthetic polymer is formed by mixing one or more of polycaprolactone, polyvinyl alcohol, aliphatic polyester and derivatives thereof;
the degradable softener is prepared by mixing one or more of natural oil, natural wax, honey and flowing paraffin.
2. The biodegradable pressure sensitive adhesive composition according to claim 1, wherein: the weight portion of the degradable macromolecule is 80-120.
3. The biodegradable pressure sensitive adhesive composition according to claim 1, wherein: the weight portion of the degradable softener is 30-40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110103038.1A CN112898918A (en) | 2021-01-26 | 2021-01-26 | Biodegradable pressure-sensitive adhesive composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110103038.1A CN112898918A (en) | 2021-01-26 | 2021-01-26 | Biodegradable pressure-sensitive adhesive composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112898918A true CN112898918A (en) | 2021-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110103038.1A Pending CN112898918A (en) | 2021-01-26 | 2021-01-26 | Biodegradable pressure-sensitive adhesive composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112898918A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115322695A (en) * | 2022-08-05 | 2022-11-11 | 永大（中山）有限公司 | High-performance degradable adhesive tape and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07173442A (en) * | 1993-11-05 | 1995-07-11 | Toyo Ink Mfg Co Ltd | Biodegradable pressure-sensitive adhesive |
| JP2001115122A (en) * | 1999-10-18 | 2001-04-24 | Plusto:Kk | Biodegradable adhesive |
| JP2018203822A (en) * | 2017-05-31 | 2018-12-27 | アキレス株式会社 | Biodegradable adhesive film |
| CN109266233A (en) * | 2018-08-08 | 2019-01-25 | 北京众邦健业印刷有限责任公司 | Tape substrate, adhesive tape and preparation method with it |
-
2021
- 2021-01-26 CN CN202110103038.1A patent/CN112898918A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07173442A (en) * | 1993-11-05 | 1995-07-11 | Toyo Ink Mfg Co Ltd | Biodegradable pressure-sensitive adhesive |
| JP2001115122A (en) * | 1999-10-18 | 2001-04-24 | Plusto:Kk | Biodegradable adhesive |
| JP2018203822A (en) * | 2017-05-31 | 2018-12-27 | アキレス株式会社 | Biodegradable adhesive film |
| CN109266233A (en) * | 2018-08-08 | 2019-01-25 | 北京众邦健业印刷有限责任公司 | Tape substrate, adhesive tape and preparation method with it |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115322695A (en) * | 2022-08-05 | 2022-11-11 | 永大（中山）有限公司 | High-performance degradable adhesive tape and preparation method thereof |
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Application publication date: 20210604 |