CN103214726A - Herbicidal long-term covering mulch - Google Patents
Herbicidal long-term covering mulch Download PDFInfo
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- CN103214726A CN103214726A CN2013101714150A CN201310171415A CN103214726A CN 103214726 A CN103214726 A CN 103214726A CN 2013101714150 A CN2013101714150 A CN 2013101714150A CN 201310171415 A CN201310171415 A CN 201310171415A CN 103214726 A CN103214726 A CN 103214726A
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Abstract
The invention relates to a herbicidal long-term covering mulch which is made from the following raw materials by weight percent: 70-95% of polyethylene LLDPE7042; 0.1-5% of an antioxidant, 0.1-5% of a hindered amine light stabilizer, 4-20% of a light blocking material black masterbatch and 0.02-0.05% of a liquid paraffin or vegetable oil. The thickness of the mulch is 0.008-0.01mm, the width of the mulch is 0.4-6m, the technical parameters are ensured to be in line with national standards, the mulch does not contain heavy metals and toxic substances, the produced mulch is packaged by black plastic packages and stored in the dark condition, the effective covering time is 10-15 months, and moreover the application of the mulch covers a wide range of foodstuffs or economic crops such as sugarcanes, corns, potatoes, vegetables, and flowers.
Description
Technical field
The present invention relates to processing of high molecular material and coping with agriculture drought technical field, relate to a kind of covering with plastic film of anti-phenology with long-time use of weeding effect.
Background technology
Sugarcane is the southern important cash crop of China, traditional cultivation mode mainly by membrane covering, use a large amount of chemical fertilizer and agricultural chemicals reaches high yield synergic purpose.But long-term excessive applying pesticides has caused the residual of a large amount of agricultural chemicals, and the pollution that cause in ecological environment of soil, waters in the short period of time is difficult to administer.The membrane covering cultivation of sugar cane has tangible resisting drought saving water, promotes the effect of the precocious volume increase of sugarcane, effective cover time of conventional mulch film is about 4-5 month, and the sugarcane production cycle reaches 11-15 month, under the increasing situation of arid, have only the anniversary drought resisting just can guarantee the stable yields volume increase of sugarcane, common ground film can not satisfy the requirement of sugarcane drought-resistant cultivating fully.The sugarcane full-film mulching and planting technology of using has obviously been saved the cultivation of sugar cane water at present, and the drought-resistant water-preserving effect is remarkable, but the problem that exists is to adopt the full-film mulching and planting technology, and the weeds harm on every side of sugarcane root system is serious, has influenced division and the early growth of sugarcane.Therefore press for the long mulch film that has herbicidal effect simultaneously again of a kind of cover time on producing.The long-lived film of exploitation is mainly awning film both at home and abroad at present, and black mulch film is mainly used in ground and covers weeding.Long-life type mulch film with herbicidal effect is not reported.
Summary of the invention
But the present invention proposes a kind of long-acting covering with plastic film of weeding, effectively cover time 8-15 month, can play the effect of long-time resisting drought saving water, and effectively suppress weed growth, weeds inverse amplification factor 80-95%.
Black agglomerate main component with weeding effect is a nano carbon black, and content is the 1-10% of mulch film product.
The long-acting function of mulch film is sent out collaborative performance effect jointly by carbon black, oxidation inhibitor and hindered amine.
The mulch film weeding function mainly relies on sooty extinction effect
The present invention is achieved through the following technical solutions:
But a kind of long-acting covering with plastic film of weeding is characterized in that, is made by following raw materials by weight percent:
Polyethylene LLDPE 7042:70-95%;
Oxidation inhibitor: 0.1-5%;
Hindered amine as light stabilizer: 0.1-5%;
Resistance light raw material black agglomerate: 4-20%;
Whiteruss or vegetables oil 0.02-0.05%;
Preparation process is as follows:
(1), preparation of raw material: in screw spice machine, add black agglomerate and polyethylene LLDPE7042 polyethylene, add vegetables oil or whiteruss afterwards, wetting surface to polyethylene particle and black agglomerate is added oxidation inhibitor and hindered amine as light stabilizer again, fully mixing;
(2), mulch film production: adopt conventional mulch film inflation film manufacturing machine group, earlier the mulch film unit is preheated, 1-2.5 hour warm up time, Heating temperature is lower than 180 ℃, wherein heating district's temperature modulation is 160 ℃, two district's temperature modulation are 165 ℃, three district's temperature modulation are 175 ℃, head temperature is modulated to 170 ℃, between warming up period, fully debugs traction on the unit, following traction and taking-up equipment to normal operating conditions, the debugging of air pump air feed is normal, after the preheating raw material of mixing is put into hopper, plant capacity is regulated from low to high, produces the mulch film that meets national standard.
Described oxidation inhibitor selects for use model to be: 1076, one or more in 1010 and 168 are composite.
Described hindered amine as light stabilizer selects for use model to be: one or more among GW-622, GW-744, GW-783, GW-770 and the GW-944 are composite.
Described resistance light raw material black agglomerate is made of carbon black 22% and polyethylene 78% by percent by weight.
The ground film thickness that adopts the technology of the present invention to produce reaches 0.008-0.01mm, and width 0.4-6m guarantees that technical parameter meets national standard, does not contain heavy metal and toxic substance, and the mulch film of production is packed with the black plastic packaging casing, preserves under the lucifuge condition.Effectively cover time 10-15 month, the scope of application comprised grain or cash crop such as sugarcane, corn, potato, flowers, vegetables.
Embodiment
Embodiment one
1, preparation of raw material
In screw spice machine, add 2.5kg black agglomerate and 25kg polyethylene LLDPE7042 polyethylene, add afterwards a small amount of vegetables oil or whiteruss (5ml), allow organic liquid fully be distributed to the surface of polyethylene particle and black agglomerate, add 25g antioxidant 1010 and 37.5g hindered amine GW-622 afterwards, with all pulvis and the abundant mixing of particle.
2, mulch film production
Adopt conventional mulch film inflation film manufacturing machine group SJ-65 model, with the heating of mulch film unit, 2 hours warm up time, be lower than 185 ℃ (wherein will heat 155 ℃ of district's temperature modulation, 165 ℃ of two district's temperature, 170 ℃ in three districts, 175 ℃ of head temperatures) earlier in Heating temperature.Between warming up period, fully debug traction on the unit, traction down, taking-up equipment to normal operating conditions, the debugging of air pump air feed is normal.After the preheating raw material is added material bin, it is stable that forcing machine, traction and taking-up equipment power are progressively heightened the back, the blown film film thickness reaches 0.008-0.01mm, width 0.4-3m, the compound national standard of technical parameter (the agricultural ground of GB 13735-92 blow moulded polyethyene coating film).After the mulch film packing, under the lucifuge condition, preserve.
Embodiment two
1, preparation of raw material
In screw spice machine, add 2kg black agglomerate and 25kg polyethylene LLDPE7042 polyethylene, add afterwards a small amount of vegetables oil or whiteruss (5ml), allow organic liquid fully be distributed to the surface of polyethylene particle and black agglomerate, add the 12.5g antioxidant 1010 peaceful coexistence 12.5g oxidation inhibitor 168 of Compositional type afterwards, 25g hindered amine GW-783 is with all pulvis and the abundant mixing of particle.
2, mulch film production
Adopt conventional mulch film inflation film manufacturing machine group SJ-65 model, with the heating of mulch film unit, 2 hours warm up time, be lower than 185 ℃ (wherein will heat 155 ℃ of district's temperature modulation, 160 ℃ of two district's temperature, 175 ℃ in three districts, 175 ℃ of head temperatures) earlier in Heating temperature.Between warming up period, fully debug traction on the unit, traction down, taking-up equipment to normal operating conditions, the debugging of air pump air feed is normal.After the preheating raw material is added material bin, it is stable that forcing machine, traction and taking-up equipment power are progressively heightened the back, the blown film film thickness reaches 0.008-0.01mm, width 0.4-3m, the compound national standard of technical parameter (the agricultural ground of GB 13735-92 blow moulded polyethyene coating film).After the mulch film packing, under the lucifuge condition, preserve.
Embodiment three
1, preparation of raw material
In screw spice machine, add 2.5kg black agglomerate and 25kg polyethylene LLDPE7042 polyethylene, add 3ml vegetables oil or whiteruss afterwards, allow organic liquid fully be distributed to the surface of polyethylene particle and black agglomerate, add the 12.5g oxidation inhibitor 168 and the 37.5g hindered amine GW-770 of 12.5g antioxidant 1076, Compositional type afterwards, with all pulvis and the abundant mixing of particle.
2, mulch film production
Adopt conventional mulch film inflation film manufacturing machine group SJ-75 model, earlier the mulch film unit is heated, 2.5 hours warm up time, be lower than 185 ℃ in Heating temperature and (wherein will heat 155 ℃ of district's temperature modulation, 165 ℃ of two district's temperature, 170 ℃ in three districts, 180 ℃ of linkers, 175 ℃ in head one district, 175 ℃ in head two districts).Between warming up period, fully debug traction on the unit, traction down, taking-up equipment to normal operating conditions, the debugging of air pump air feed is normal.After the preheating raw material is added material bin, it is stable that forcing machine, traction and taking-up equipment power are progressively heightened the back, the blown film film thickness reaches 0.008-0.01mm, width 0.4-6m, the compound national standard of technical parameter (the agricultural ground of GB 13735-92 blow moulded polyethyene coating film).After the mulch film packing, under the lucifuge condition, preserve.
Embodiment four
1, preparation of raw material
In screw spice machine, add 1.8kg black agglomerate and 25kg polyethylene LLDPE7042 polyethylene, add 5ml vegetables oil or whiteruss afterwards, allow organic liquid fully be distributed to the surface of polyethylene particle and black agglomerate, add 12.5g antioxidant 1010 and 25g hindered amine WG-944 afterwards, with all pulvis and the abundant mixing of particle.
2, mulch film production
Adopt conventional mulch film inflation film manufacturing machine group SJ-50 model, with the heating of mulch film unit, 1.5 hours warm up time, be lower than 185 ℃ (wherein will heat 155 ℃ of district's temperature modulation, 170 ℃ of two district's temperature, 175 ℃ in three districts, 175 ℃ of head temperatures) earlier in Heating temperature.Between warming up period, fully debug traction on the unit, traction down, taking-up equipment to normal operating conditions, the debugging of air pump air feed is normal.After the preheating raw material is added material bin, it is stable that forcing machine, traction and taking-up equipment power are progressively heightened the back, the blown film film thickness reaches 0.008-0.01mm, width 0.4-6m, the compound national standard of technical parameter (the agricultural ground of GB 13735-92 blow moulded polyethyene coating film).After the mulch film packing, under the lucifuge condition, preserve.
Embodiment five
1, preparation of raw material
In screw spice machine, add 2kg black agglomerate and 25kg polyethylene LLDPE7042 polyethylene, add 2-5ml vegetables oil or whiteruss afterwards, allow organic liquid fully be distributed to the surface of polyethylene particle and black agglomerate, add the 12.5g hindered amine as light stabilizer GW-622 and the 12.5g hindered amine as light stabilizer GW-744 of 25g antioxidant 1010, Compositional type afterwards, with all pulvis and the abundant mixing of particle.
2, mulch film production
Adopt conventional mulch film inflation film manufacturing machine group SJ-65 model, with the heating of mulch film unit, 2 hours warm up time, be lower than 185 ℃ (wherein will heat 160 ℃ of district's temperature modulation, 165 ℃ of two district's temperature, 175 ℃ in three districts, 170 ℃ of head temperatures) earlier in Heating temperature.Between warming up period, fully debug traction on the unit, traction down, taking-up equipment to normal operating conditions, the debugging of air pump air feed is normal.After the preheating raw material is added material bin, it is stable that forcing machine, traction and taking-up equipment power are progressively heightened the back, the blown film film thickness reaches 0.008-0.01mm, width 0.4-6m, the compound national standard of technical parameter (the agricultural ground of GB 13735-92 blow moulded polyethyene coating film).After the mulch film packing, under the lucifuge condition, preserve.
Embodiment six
1, preparation of raw material
In screw spice machine, add 1.8kg black agglomerate and 25kg polyethylene LLDPE7042, add 2-5ml vegetables oil or whiteruss afterwards, allow organic liquid fully be distributed to the surface of polyethylene particle and black agglomerate, add the 25g antioxidant 1010 and the 12.5g oxidation inhibitor 168 of Compositional type afterwards, 25g hindered amine as light stabilizer GW-622 and 12.5g hindered amine as light stabilizer GW-770 are with all pulvis and the abundant mixing of particle.
2, mulch film production
Adopt conventional mulch film inflation film manufacturing machine group SJ-50 model, with the heating of mulch film unit, 1.5 hours warm up time, be lower than 180 ℃ (wherein will heat 160 ℃ of district's temperature modulation, 170 ℃ of two district's temperature, 175 ℃ in three districts, 170 ℃ of head temperatures) earlier in Heating temperature.Between warming up period, fully debug traction on the unit, traction down, taking-up equipment to normal operating conditions, the debugging of air pump air feed is normal.After the preheating raw material is added material bin, it is stable that forcing machine, traction and taking-up equipment power are progressively heightened the back, the blown film film thickness reaches 0.008-0.01mm, width 0.4-2m, the compound national standard of technical parameter (the agricultural ground of GB 13735-92 blow moulded polyethyene coating film).After the mulch film packing, under the lucifuge condition, preserve.
Embodiment seven
1, preparation of raw material
In screw spice machine, add 2.2kg black agglomerate and 25kg polyethylene LLDPE7042, add 3ml vegetables oil or whiteruss afterwards, allow organic liquid fully be distributed to the surface of polyethylene particle and black agglomerate, add the 25g hindered amine as light stabilizer GW-770 and the 12.5g hindered amine as light stabilizer GW-944 of 12.5g antioxidant 1076, Compositional type afterwards.
2, mulch film production
Adopt conventional mulch film inflation film manufacturing machine group SJ-75 model, earlier with the heating of mulch film unit, 2.5 hours warm up time, be lower than 185 ℃ in Heating temperature and (wherein will heat 155 ℃ of district's temperature modulation, 170 ℃ in two districts, 175 ℃ in three districts, 180 ℃ of linkers, 175 ℃ in head one district, 175 ℃ in head two districts).Between warming up period, fully debug traction on the unit, traction down, taking-up equipment to normal operating conditions, the debugging of air pump air feed is normal.After the preheating raw material is added material bin, it is stable that forcing machine, traction and taking-up equipment power are progressively heightened the back, the blown film film thickness reaches 0.008-0.01mm, width 0.4-6m, the compound national standard of technical parameter (the agricultural ground of GB 13735-92 blow moulded polyethyene coating film).After the mulch film packing, under the lucifuge condition, preserve.
Embodiment eight
1, preparation of raw material
In screw spice machine, add 2kg black agglomerate and 25kg polyethylene LLDPE7042, add afterwards 2-5ml vegetables oil or whiteruss, allow organic liquid fully be distributed to the surface of polyethylene particle and black agglomerate, add the 12.5g hindered amine as light stabilizer GW-622 and the 12.5g hindered amine as light stabilizer GW-944 of 25g antioxidant 1010, Compositional type afterwards, with all pulvis and the abundant mixing of particle.
2, mulch film production
Adopt conventional mulch film inflation film manufacturing machine group SJ-65 model, with the heating of mulch film unit, 2 hours warm up time, be lower than 185 ℃ (wherein will heat 155 ℃ of district's temperature modulation, 165 ℃ of two district's temperature, 170 ℃ in three districts, 175 ℃ of head temperatures) earlier in Heating temperature.Between warming up period, fully debug traction on the unit, traction down, taking-up equipment to normal operating conditions, the debugging of air pump air feed is normal.After the preheating raw material is added material bin, it is stable that forcing machine, traction and taking-up equipment power are progressively heightened the back, the blown film film thickness reaches 0.008-0.01mm, width 0.4-6m, the compound national standard of technical parameter (the agricultural ground of GB 13735-92 blow moulded polyethyene coating film).After the mulch film packing, under the lucifuge condition, preserve.
Claims (5)
1. but the long-acting covering with plastic film of a weeding is characterized in that, is made by following raw materials by weight percent:
Polyethylene LLDPE 7042:70-95%;
Oxidation inhibitor: 0.1-5%;
Hindered amine as light stabilizer: 0.1-5%;
Resistance light raw material black agglomerate: 4-20%;
Whiteruss or vegetables oil 0.02-0.05%;
Preparation process is as follows:
(1), preparation of raw material: the black agglomerate and the polyethylene LLDPE7042 that in screw spice machine, add resistance light, add vegetables oil or whiteruss afterwards, the surface of wetting polyethylene particle and black agglomerate is added oxidation inhibitor and hindered amine as light stabilizer again, fully mixing;
(2), mulch film production: adopt conventional mulch film inflation film manufacturing machine group, earlier the mulch film unit is preheated, 1-2.5 hour warm up time, Heating temperature is lower than 180 ℃, and wherein heating district's temperature modulation is 160 ℃, two district's temperature modulation are 165 ℃, three district's temperature modulation are 175 ℃, and head temperature is modulated to 170 ℃, between warming up period, fully traction on the debugging unit, following traction and taking-up equipment are to normal operating conditions, and the debugging of air pump air feed is normal; After the preheating raw material of mixing is put into hopper, plant capacity is regulated from low to high, produces the mulch film that meets national standard.
2. but the long-acting covering with plastic film of a kind of weeding according to claim 1 is characterized in that, oxidation inhibitor selects for use model to be: 1076, one or more in 1010 and 168 are composite.
3. but the long-acting covering with plastic film of a kind of weeding according to claim 1 is characterized in that, hindered amine as light stabilizer selects for use model to be: one or more among GW-622, GW-744, GW-783, GW-770 and the GW-944 are composite.
4. but the long-acting covering with plastic film of a kind of weeding according to claim 1 is characterized in that, resistance light raw material black agglomerate is made of carbon black 22% and polyethylene 78% by percent by weight.
5. but the long-acting covering with plastic film of a kind of weeding according to claim 1 is characterized in that, described ground film thickness 0.008-0.01mm, width 0.4-6m, effectively cover time 10-15 month.
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| CN201310171415.0A CN103214726B (en) | 2013-05-11 | 2013-05-11 | A kind of can the long-acting covering with plastic film of weeding |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104521534A (en) * | 2015-01-14 | 2015-04-22 | 甘肃省农业科学院植物保护研究所 | Soil-sealed herbicide partial decrement applying method in full-film double-furrow corn field |
| CN104770255A (en) * | 2015-04-19 | 2015-07-15 | 罗福仲 | Breathable weeding mulching film |
| CN106386148A (en) * | 2016-10-21 | 2017-02-15 | 云南省农业科学院甘蔗研究所 | High-efficiency ratoon sugarcane cultivation method |
| CN109181168A (en) * | 2018-11-07 | 2019-01-11 | 温州莲华环保科技有限公司 | A kind of plant protection water-permeable membrane and preparation process |
| CN109749212A (en) * | 2017-11-03 | 2019-05-14 | 中国石油天然气股份有限公司 | Mulching film and preparation method thereof |
| CN110330716A (en) * | 2019-07-19 | 2019-10-15 | 陕西科技大学 | A kind of polyethylene or acrylic resin mulch hollow plastic ball and its application method for Arid&semi-arid area |
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| CN109749212A (en) * | 2017-11-03 | 2019-05-14 | 中国石油天然气股份有限公司 | Mulching film and preparation method thereof |
| CN109181168A (en) * | 2018-11-07 | 2019-01-11 | 温州莲华环保科技有限公司 | A kind of plant protection water-permeable membrane and preparation process |
| CN110330716A (en) * | 2019-07-19 | 2019-10-15 | 陕西科技大学 | A kind of polyethylene or acrylic resin mulch hollow plastic ball and its application method for Arid&semi-arid area |
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| CN103214726B (en) | 2015-08-19 |
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