CN103733925A - High-efficiency recycling mulching film with controllable full-biodegradation strips on two sides - Google Patents
High-efficiency recycling mulching film with controllable full-biodegradation strips on two sides Download PDFInfo
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- CN103733925A CN103733925A CN201310617513.2A CN201310617513A CN103733925A CN 103733925 A CN103733925 A CN 103733925A CN 201310617513 A CN201310617513 A CN 201310617513A CN 103733925 A CN103733925 A CN 103733925A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
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Abstract
The invention discloses high-efficiency recycling mulching film with controllable full-biodegradation strips on the two sides. The high-efficiency recycling mulching film with the controllable full-biodegradation strips on the two sides is composed of the two controllable full-biodegradation strips and a polyethylene strip in an alternate mode, wherein the controllable full-biodegradation strips are arranged on the two sides respectively, and the polyethylene strip is arranged in the middle. According to the high-efficiency recycling mulching film with the controllable full-biodegradation strips on the two sides, due to the facts that the middle portion can be easily recycled, and the portions embedded into the ground can be completely biodegraded in a controllable mode, the recycling rate of the mulching film is improved, and pollution caused by residual film is reduced; in addition, moisture infiltration in the later growth period of crops can be improved, influence caused by the high temperature is reduced, the requirements of the crop for different temperatures and different levels of moisture in different growth periods can be met, and thus the yield and quality of the crop can be improved.
Description
Technical field
The present invention relates to Material Field, particularly a kind of both sides controllable full-biodegradable high efficiente callback mulch film.
Background technology
Common polythene Plastic-film disintegration is extremely slow, uses for a long time, not only can cause soil pollution and environmental pollution, and a large amount of residual films stays in soil that impact is emerged and the growth of root system, and it is unfavorable that crop growth and output are formed.In order to reduce common polythene in the residual harmful effect that soil and environment are caused of film, people start to pay attention to the recovery and reuse of common polythene mulch film.But in removal process, the part of imbedding in soil is difficult to reclaim, or only can reclaim sub-fraction.If both sides degradable, can improve the rate of recovery of polyethylene ground film, reduce residual film and pollute.
Summary of the invention
The object of this invention is to provide a kind of both sides controllable full-biodegradable high efficiente callback mulch film, can improve the mulch film rate of recovery, reduce residual film and pollute.
For achieving the above object, the present invention adopts following technical scheme:
A kind of both sides controllable full-biodegradable high efficiente callback mulch film, it is by two controllable full-biodegradable bands and polyethylene band alternate composition, and both sides are controllable full-biodegradable band, and centre is polyethylene band.
Further, a kind of both sides controllable full-biodegradable high efficiente callback mulch film, by weight, the raw material of producing controllable full-biodegradable band comprise, biodegradation material 95-99 part, bulking agent 1-5 part.
Further, a kind of both sides controllable full-biodegradable high efficiente callback mulch film, biodegradation material is aliphatic-aromatic polyester copolymer, PLA and starch-base biodegradation material, wherein, by weight, 10 parts of aliphatic-aromatic polyester copolymers, 70 parts of PLAs, 4 parts of starch-base biodegradation materials.
Further, a kind of both sides controllable full-biodegradable high efficiente callback mulch film, biodegradation material is aliphatic-aromatic polyester copolymer, PLA and starch-base biodegradation material, wherein, by weight, 70 parts of aliphatic-aromatic polyester copolymers, 10 parts of PLAs, 15 parts of starch-base biodegradation materials.
Compared with prior art, for controllable full-biodegradable high efficiente callback mulch film in both sides provided by the present invention, intermediate portion is easy to be recovered, can controlled complete biodegradable and be embedded in part in soil, therefore, improved the mulch film rate of recovery, reduced residual film and pollute.In addition, can increase crop growth later stage Infiltration, alleviate temperatures involved, can meet the differentiated demand of crop different growing to temperature and moisture, and then promote crop yield raising and quality improving.
Accompanying drawing explanation
The processing technology schematic diagram of Fig. 1 both sides provided by the present invention controllable full-biodegradable high efficiente callback mulch film.
Description of reference numerals: 1 controllable biodegradable material, 2 bulking agents, 3 polyethylene, 4 masterbatch, 5 finished products.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
A kind of both sides controllable full-biodegradable high efficiente callback mulch film, it is by two controllable full-biodegradable bands and polyethylene band alternate composition, and both sides are controllable full-biodegradable band, and centre is polyethylene band.Due to mulch film provided by the present invention, mid portion is easy to be recovered, can controlled complete biodegradable and be embedded in part in soil, therefore, improved the mulch film rate of recovery, and reduce residual film and pollute.In addition, can increase crop growth later stage Infiltration, alleviate temperatures involved, can meet the differentiated demand of crop different growing to temperature and moisture, and then promote crop yield raising and quality improving.
As a specific embodiment of the present invention, a kind of both sides controllable full-biodegradable high efficiente callback mulch film, by weight, the raw material of producing controllable full-biodegradable band comprise, biodegradation material 95-99 part, bulking agent 1-5 part.Wherein, bulking agent can be maleic anhydride or acrylic acid modified polylactic acid low polymer, and its effect is the compatibility that increases different materials, makes it in conjunction with tightr.Agricultural mulching provided by the present invention, compared with traditional mulch film, is the raw material difference of using, and its processing technology is identical.Utilize three road co-extrusions, wherein first and third passage is controllable full-biodegradable material blowing passage, and center-aisle is blow moulded polyethyene passage.By weight percentage, in first and third passage, by 95-99 part controllable biodegradable material 1,1-5 part bulking agent 2, stirs and makes masterbatch 4 with extrusion granulating machine afterwards; In center-aisle, get 100 parts of polyethylene 3.Then according to conventional blow molding process, mate coextrusion blow to finished product 5.
According to GB/T1040.3-2006 and GB/T2410-80, carry out mechanical property and the light transmission test of mulch film, according to GB/T20197-2006, carried out the degradation property test of mulch film.
Table 1
Note: moisture determination is all in mid-July.
With reference to table 1, in another specific embodiment of the present invention, biodegradation material is aliphatic-aromatic polyester copolymer, PLA and starch-base biodegradation material, wherein, by weight, 10 parts of aliphatic-aromatic polyester copolymers, 70 parts of PLAs, 4 parts of starch-base biodegradation materials.
With reference to table 1, in an also specific embodiment of the present invention, biodegradation material is aliphatic-aromatic polyester copolymer, PLA and starch-base biodegradation material, wherein, by weight, 70 parts of aliphatic-aromatic polyester copolymers, 10 parts of PLAs, 5 parts of starch-base biodegradation materials.
Take peanut ridging plastic-film-covered cultivation as example, generally overlay film in time after peanut seeding at the beginning of by the end of April to 5 month.Utilize mulch film provided by the present invention, can solve weeding, reduce spray herbicide lack of homogeneity, increase the problems such as work input.Enter after July rainfall season, the biodegradable band in both sides becomes band or the block degraded of point, can reduce the impact of high temperature on root growth, significantly improve root system moisture around, be beneficial to root system and keep higher vigor and long active period, than common ground film, have effect of increasing production, quality is also obviously improved.During harvesting peanut, middle long-life band recycling rate reaches more than 90%, remains in the part fully biodegradable in soil.
Meanwhile, mulch film provided by the present invention is also applicable to the various cover crop cultivations that need to improve the mulch film rate of recovery, reduce environmental pollution.
In sum, controllable full-biodegradable high efficiente callback mulch film in both sides provided by the present invention, intermediate portion is easy to be recovered, can controlled complete biodegradable and be embedded in part in soil, therefore, improved the mulch film rate of recovery, reduce residual film and pollute.In addition, can increase crop growth later stage Infiltration, alleviate temperatures involved, can meet the differentiated demand of crop different growing to temperature and moisture, and then promote crop yield raising and quality improving.
The foregoing is only preferred embodiment of the present invention, be not used for limiting practical range of the present invention; If do not depart from the spirit and scope of the present invention, the present invention is modified or is equal to replacement, all should be encompassed in the middle of the protection domain of the claims in the present invention.
Claims (4)
1. a both sides controllable full-biodegradable high efficiente callback mulch film, is characterized in that, it is by two controllable full-biodegradable bands and polyethylene band alternate composition, and both sides are controllable full-biodegradable band, and centre is polyethylene band.
2. agricultural mulching according to claim 1, is characterized in that, by weight, the raw material of producing controllable full-biodegradable band comprise, biodegradation material 95-99 part, bulking agent 1-5 part.
3. agricultural mulching according to claim 2, it is characterized in that, biodegradation material is aliphatic-aromatic polyester copolymer, PLA and starch-base biodegradation material, wherein, by weight, 10 parts of aliphatic-aromatic polyester copolymers, 70 parts of PLAs, 4 parts of starch-base biodegradation materials.
4. agricultural mulching according to claim 2, biodegradation material is aliphatic-aromatic polyester copolymer, PLA and starch-base biodegradation material, wherein, by weight, 70 parts of aliphatic-aromatic polyester copolymers, 10 parts of PLAs, 5 parts of starch-base biodegradation materials.
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| CN201310617513.2A CN103733925B (en) | 2013-11-27 | 2013-11-27 | A kind of both sides controllable full-biodegradable high efficiente callback mulch film |
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| CN201310617513.2A CN103733925B (en) | 2013-11-27 | 2013-11-27 | A kind of both sides controllable full-biodegradable high efficiente callback mulch film |
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| CN103733925A true CN103733925A (en) | 2014-04-23 |
| CN103733925B CN103733925B (en) | 2015-10-14 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985795A (en) * | 2015-07-29 | 2015-10-21 | 王连瑞 | Stripe type alternative joint agricultural mulching film and preparing method thereof |
| CN105191596A (en) * | 2014-06-23 | 2015-12-30 | 新疆农垦科学院 | Machine-harvested cotton environment-friendly cultivating method |
| CN105248203A (en) * | 2015-11-07 | 2016-01-20 | 刘笑 | Degradable, controllable and environmental-friendly functional mulching film and preparation method thereof |
| CN107371919A (en) * | 2017-06-19 | 2017-11-24 | 广东乐将生物科技有限公司 | A kind of press strip Environment protection mulch film for being incubated water conservation |
| CN112493038A (en) * | 2019-09-14 | 2021-03-16 | 刘善勇 | Special mulching film for peanut production |
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| CN1272304A (en) * | 2000-05-23 | 2000-11-08 | 李小鲁 | New-type double material agricultural mulch film and its preparation method |
| CN1711829A (en) * | 2004-06-21 | 2005-12-28 | 解景勋 | Two-side degradable plastic mulch film |
| WO2012152820A1 (en) * | 2011-05-10 | 2012-11-15 | Basf Se | Biodegradable polyester film |
| CN102796286A (en) * | 2012-08-28 | 2012-11-28 | 广东益德环保科技有限公司 | Full-biodegradable material and preparation method thereof |
| CN202617848U (en) * | 2012-04-18 | 2012-12-26 | 云南省农业科学院甘蔗研究所 | Photon-generated degradable film special for sugarcane |
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2013
- 2013-11-27 CN CN201310617513.2A patent/CN103733925B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272304A (en) * | 2000-05-23 | 2000-11-08 | 李小鲁 | New-type double material agricultural mulch film and its preparation method |
| CN1711829A (en) * | 2004-06-21 | 2005-12-28 | 解景勋 | Two-side degradable plastic mulch film |
| WO2012152820A1 (en) * | 2011-05-10 | 2012-11-15 | Basf Se | Biodegradable polyester film |
| CN202617848U (en) * | 2012-04-18 | 2012-12-26 | 云南省农业科学院甘蔗研究所 | Photon-generated degradable film special for sugarcane |
| CN102796286A (en) * | 2012-08-28 | 2012-11-28 | 广东益德环保科技有限公司 | Full-biodegradable material and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105191596A (en) * | 2014-06-23 | 2015-12-30 | 新疆农垦科学院 | Machine-harvested cotton environment-friendly cultivating method |
| CN105191596B (en) * | 2014-06-23 | 2018-04-27 | 新疆农垦科学院 | A kind of machine pick cotton environmental protection cultural method |
| CN104985795A (en) * | 2015-07-29 | 2015-10-21 | 王连瑞 | Stripe type alternative joint agricultural mulching film and preparing method thereof |
| CN105248203A (en) * | 2015-11-07 | 2016-01-20 | 刘笑 | Degradable, controllable and environmental-friendly functional mulching film and preparation method thereof |
| CN107371919A (en) * | 2017-06-19 | 2017-11-24 | 广东乐将生物科技有限公司 | A kind of press strip Environment protection mulch film for being incubated water conservation |
| CN112493038A (en) * | 2019-09-14 | 2021-03-16 | 刘善勇 | Special mulching film for peanut production |
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| CN103733925B (en) | 2015-10-14 |
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Application publication date: 20140423 Assignee: SHANDONG QINGTIAN PLASTIC INDUSTRY Co.,Ltd. Assignor: Shandong Agricultural University Contract record no.: X2022370000026 Denomination of invention: A Fully Biodegradable Plastic Film with High Efficiency and Controlled Both Sides Granted publication date: 20151014 License type: Common License Record date: 20220928 |
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