CN103733925B - A kind of both sides controllable full-biodegradable high efficiente callback mulch film - Google Patents
A kind of both sides controllable full-biodegradable high efficiente callback mulch film Download PDFInfo
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- CN103733925B CN103733925B CN201310617513.2A CN201310617513A CN103733925B CN 103733925 B CN103733925 B CN 103733925B CN 201310617513 A CN201310617513 A CN 201310617513A CN 103733925 B CN103733925 B CN 103733925B
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- biodegradable
- mulch film
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- efficiente callback
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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 a kind of both sides controllable full-biodegradable high efficiente callback mulch film, it forms by two controllable full-biodegradable bands are alternate with polyethylene tape, and both sides are controllable full-biodegradable band, and centre is polyethylene tape.Controllable full-biodegradable high efficiente callback mulch film in both sides provided by the present invention, intermediate portion is easy to be recovered, and be embedded in part in soil can controlled complete biodegradable, this improves the mulch film rate of recovery, reduce residual fouling membrane.In addition, crop growth later stage Infiltration can be increased, alleviate temperatures involved, the differentiated demand of crop different growing to temperature and moisture can be met, and then promote crop yield raising and quality improving.
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, and Long-Time Service, not only can cause soil pollution and environmental pollution, and a large amount of residual films is stayed impact in soil and emerged and the growth of root system, to crop growth and yield composition unfavorable.Remain to reduce common polythene the harmful effect caused soil and environment at film, people start the recovery and reuse paying attention to common polythene mulch film.But in removal process, the part imbedded in soil is difficult to reclaim, or only can reclaim sub-fraction.If both sides degradable, the rate of recovery of polyethylene ground film can be improved, reduce residual fouling membrane.
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, the mulch film rate of recovery can be improved, reduce residual fouling membrane.
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 forms by two controllable full-biodegradable bands are alternate with polyethylene tape, and both sides are controllable full-biodegradable band, and centre is polyethylene tape.
Further, a kind of both sides controllable full-biodegradable high efficiente callback mulch film, by weight, the raw material 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, aliphatic-aromatic polyester copolymer 10 part, PLA 70 parts, starch-base biodegradation material 4 parts.
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, aliphatic-aromatic polyester copolymer 70 parts, PLA 10 parts, starch-base biodegradation material 15 parts.
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, and be embedded in part in soil can controlled complete biodegradable, this improves the mulch film rate of recovery, reduce residual fouling membrane.In addition, crop growth later stage Infiltration can be increased, alleviate temperatures involved, the differentiated demand of crop different growing to temperature and moisture can be met, 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 clearly understand, 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, be not intended to limit the present invention.
A kind of both sides controllable full-biodegradable high efficiente callback mulch film, it forms by two controllable full-biodegradable bands are alternate with polyethylene tape, and both sides are controllable full-biodegradable band, and centre is polyethylene tape.Due to mulch film provided by the present invention, mid portion is easy to be recovered, and be embedded in part in soil can controlled complete biodegradable, this improves the mulch film rate of recovery, reduce residual fouling membrane.In addition, crop growth later stage Infiltration can be increased, alleviate temperatures involved, the differentiated demand of crop different growing to temperature and moisture can be met, 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 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 increasing different materials, makes it combine tightr.Agricultural mulching provided by the present invention is compared with traditional mulch film, and the raw material just used are different, 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, stir rear extrusion granulating machine and make masterbatch 4; In center-aisle, get 100 parts of polyethylene 3.Then conveniently blow molding process mates coextrusion blow to finished product 5.
Carry out mechanical property and the light transmission test of mulch film according to GB/T1040.3-2006 and GB/T2410-80, carry out the degradation property test of mulch film according to GB/T20197-2006.
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, aliphatic-aromatic polyester copolymer 10 part, PLA 70 parts, starch-base biodegradation material 4 parts.
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, aliphatic-aromatic polyester copolymer 70 parts, PLA 10 parts, starch-base biodegradation material 5 parts.
For peanut ridging plastic-film-covered cultivation, 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 weeding be solved, reduce spray herbicide lack of homogeneity, increase the problems such as working feature.After entering July rainfall season, the biodegradable band in both sides becomes band or the block degraded of point, the impact of high temperature on root growth can be reduced, significantly improve the moisture around root system, be beneficial to root system and keep higher vigor and longer activity period, have effect of increasing production than common ground film, 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 cultivation needing 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, and be embedded in part in soil can controlled complete biodegradable, this improves the mulch film rate of recovery, reduce residual fouling membrane.In addition, crop growth later stage Infiltration can be increased, alleviate temperatures involved, the differentiated demand of crop different growing to temperature and moisture can be met, 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 equivalent to replace, in the middle of the protection domain that all should be encompassed in the claims in the present invention.
Claims (1)
1. a both sides controllable full-biodegradable high efficiente callback mulch film, is characterized in that, it forms by two controllable full-biodegradable bands are alternate with polyethylene tape, and both sides are controllable full-biodegradable band, and centre is polyethylene tape; By weight, the raw material producing described controllable full-biodegradable band comprise, aliphatic-aromatic polyester copolymer 10 part, PLA 70 parts, starch-base biodegradation material 4 parts, bulking agent 1-5 part; Or by weight, the raw material producing described controllable full-biodegradable band comprise, aliphatic-aromatic polyester copolymer 70 parts, PLA 10 parts, starch-base biodegradation material 5 parts, bulking agent 1-5 part.
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| Application Number | Priority Date | Filing Date | Title |
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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 CN103733925A (en) | 2014-04-23 |
| CN103733925B true CN103733925B (en) | 2015-10-14 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2522695A1 (en) * | 2011-05-10 | 2012-11-14 | Basf Se | Biodegradable polyester film |
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Patent Citations (4)
| 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 |
| 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 |
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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 |