CN102634070A - UV (ultraviolet)-resisting degradable agricultural film and preparation thereof - Google Patents
UV (ultraviolet)-resisting degradable agricultural film and preparation thereof Download PDFInfo
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- CN102634070A CN102634070A CN2011100383363A CN201110038336A CN102634070A CN 102634070 A CN102634070 A CN 102634070A CN 2011100383363 A CN2011100383363 A CN 2011100383363A CN 201110038336 A CN201110038336 A CN 201110038336A CN 102634070 A CN102634070 A CN 102634070A
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Abstract
The invention discloses an UV (ultraviolet)-resisting degradable agricultural film, which is prepared by the flowing raw materials in parts by weight: a light stabilizer 0.1 to 2, starch 1.4 to 5.4, polyvinyl alcohol: 5.4 to 1.4, formalin: 2 to 7, glycerol: 2.7 to 6, and water 88.4 to 79.2. With the adoption of the agricultural film, the problem such as the white pollution caused by the non-degradable film is solved, and the early aging and shortening of the service life of common plastic film caused by strong ultraviolet radiation in alpine and high altitude areas are solved. In use, the reaction solution can be poured onto a stainless steel plate or plate glass while the reaction solution is still hot, and the film is formed by natural flow casting, then the film is dried and standby for use. Also the reaction solution can be diluted for 2 to 3 times and sprayed onto the soil surface, and the film is formed after the natural air drying.
Description
Technical field
The invention belongs to agriculture plastics film technical field, especially a kind of UV resistant, degradable plastic sheeting for farm use and preparation thereof.
Background technology
In recent years, " white pollution " that brings is on the rise because waste plastic is difficult to degrade, and caused global extensive concern.On the other hand, be Nonrenewable resources owing to make the raw material oil of conventional plastic, along with a large amount of uses of the mankind will be exhausted, thereby development is that raw material, degradable environmental friendliness plastic are extremely urgent with the renewable resources.In addition, when ordinary agricultural membrane was used for long day, high altitude localities, intensive uviolizing meeting caused plastic sheeting for farm use aging in advance, and significantly shorten work-ing life.The Chinese patent publication number is that CN1116635 proposes a kind of degradable mulch; Its main raw material is polyvinyl resin, treated starch, photosensitizers, oxygenant etc.; When being applied to the strong area of ultraviolet ray; Under the effect of photosensitizers, the degradative phase of mulch film can shorten significantly, is difficult to guarantee normal use.
The present invention adds photostabilizer on the basis of Biodegradable film; Alleviate the destruction of ultraviolet ray to film; On the degradation capability basis that keeps plastic sheeting for farm use, prolonged work-ing life, be particluarly suitable for ultraviolet intensive such as long day, high height above sea level area and use.
Summary of the invention
To the defective and the deficiency of above-mentioned prior art, the object of the present invention is to provide a kind of UV resistant degradable plastic sheeting for farm use, the technical scheme of employing is:
Process by following quality proportion raw material:
1.4～5.4 parts of 0.1～2 part of starch of photostabilizer
2～7 parts of 1.4～5.4 parts of formaldehyde solutions of Z 150PH
88.4～79.2 parts in 2.7～6 parts of water of glycerine
UV resistant degradable plastic sheeting for farm use of the present invention, the optimum ratio of photostabilizer, starch, Z 150PH, formaldehyde solution, glycerine and water is: 0.3 part: 3.4 parts: 3.4 parts: 4.9 parts: 3.6 parts: 84.4 parts.Photostabilizer can be one or more in hindered amines, benzophenone, the benzotriazole compound.
Another object of the present invention provides the method for the above-mentioned UV resistant degradable plastic sheeting for farm use of preparation, it is characterized in that, comprises the following steps:
1) with Z 150PH and water proportional mixing, be heated to 80～95 ℃, stirred 20～30 minutes;
2) add a certain amount of glycerine and starch, continued heated and stirred 20～30 minutes;
3) add formaldehyde solution, reacted 1～3 hour;
4) add photostabilizer, stirred 5～30 minutes, promptly get reaction solution.
The method of use of UV resistant degradable plastic sheeting for farm use of the present invention: can pour reacting liquor while hot into natural casting film-forming on stainless steel flat plate or the sheet glass, dried for standby.Also can reaction solution be diluted 2～3 times and be sprayed at soil surface, natural air drying, i.e. film forming.
Embodiment
Below come further to set forth UV resistant degradable plastic sheeting for farm use of the present invention through instance the preparation method.
Instance 1 Z 150PH 20g, water 496g, continuous stir about is 30 minutes under 90 ℃, adds 20g starch; 21.44g glycerine continued heated and stirred 30 minutes, added 26.8ml formaldehyde solution then; Reacted 3 hours; Add hindered amine light stabilizer LS-944 1.78g at last, stirred 10 minutes, promptly get reaction solution.
Claims (4)
1. a UV resistant degradable plastic sheeting for farm use is characterized in that, it is to be processed by following quality proportion raw material:
1.4～5.4 parts of 0.1～2 part of starch of photostabilizer
2～7 parts of 1.4～5.4 parts of formaldehyde solutions of Z 150PH
88.4～79.2 parts in 2.7～6 parts of water of glycerine.
2. according to the said UV resistant degradable of claim 1 plastic sheeting for farm use, it is characterized in that: the optimum ratio of said photostabilizer, starch, Z 150PH, formaldehyde solution, glycerine and water is: 0.3: 3.4: 3.4: 4.9: 3.6: 84.4.
3. according to the said UV resistant degradable of claim 2 plastic sheeting for farm use, it is characterized in that: said photostabilizer can be one or more in hindered amines, benzophenone, the benzotriazole compound.
4. according to the preparation method of the said UV resistant degradable of claim 3 plastic sheeting for farm use, it is characterized in that, comprise the following steps:
1) with Z 150PH and water proportional mixing, be heated to 80～95 ℃, stirred 20～30 minutes;
2) add a certain amount of glycerine and starch, continued heated and stirred 20～30 minutes;
3) add formaldehyde solution, reacted 1～3 hour;
4) add photostabilizer, stirred 5～30 minutes, promptly get reaction solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100383363A CN102634070A (en) | 2011-02-15 | 2011-02-15 | UV (ultraviolet)-resisting degradable agricultural film and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100383363A CN102634070A (en) | 2011-02-15 | 2011-02-15 | UV (ultraviolet)-resisting degradable agricultural film and preparation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102634070A true CN102634070A (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100383363A Pending CN102634070A (en) | 2011-02-15 | 2011-02-15 | UV (ultraviolet)-resisting degradable agricultural film and preparation thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102634070A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788863A (en) * | 2015-03-31 | 2015-07-22 | 太仓市晨洲塑业有限公司 | Novel biodegradation plastic film |
| CN112251011A (en) * | 2020-09-18 | 2021-01-22 | 东莞市雄林新材料科技股份有限公司 | Light-stable TPU composite material and preparation method thereof |
-
2011
- 2011-02-15 CN CN2011100383363A patent/CN102634070A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788863A (en) * | 2015-03-31 | 2015-07-22 | 太仓市晨洲塑业有限公司 | Novel biodegradation plastic film |
| CN112251011A (en) * | 2020-09-18 | 2021-01-22 | 东莞市雄林新材料科技股份有限公司 | Light-stable TPU composite material and preparation method thereof |
| CN112251011B (en) * | 2020-09-18 | 2022-05-24 | 东莞市雄林新材料科技股份有限公司 | Light-stable TPU composite material and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120815 |