CN102660073B - Black functional mulching film special for potatoes - Google Patents
Black functional mulching film special for potatoes Download PDFInfo
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- CN102660073B CN102660073B CN 201210155382 CN201210155382A CN102660073B CN 102660073 B CN102660073 B CN 102660073B CN 201210155382 CN201210155382 CN 201210155382 CN 201210155382 A CN201210155382 A CN 201210155382A CN 102660073 B CN102660073 B CN 102660073B
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Abstract
The invention discloses a black functional mulching film special for potatoes, which is prepared from the following raw materials by weight percent: 55%-65% of LLDPE (linear low density polyethylene), 6%-15% of LDPE (low density polyethylene), 5%-12% of HDPE (high density polyethylene), 5%-17% of mPE (metallocene polyethylene) and 6%-15% of special film functional master batch. The black functional mulching film special for the potatoes has the service life more than 12 months, and solves the problems that the existing common black mulching film is short in service life and easy to age; the service life of the black functional mulching film is more than 4 times of the service life of the existing common black mulching film, and the functional effects of rain collecting, soil moisture preservation, weeds prevention at the whole stages of development, growth and maturity of the whole potatoes are ensured; and moreover, the black functional mulching film special for potatoes is a pollution-free product which is easy to recycle and is environment-friendly, thereby protecting ecological environment effectively.
Description
Technical field
The present invention relates to a kind of agricultural ground coating film, relate in particular to a kind of special-purpose black function of potato mulch film that is applicable to potato planting.
Background technology
Adopt plastics film mulching plant potato, it is the agrotechnical much progress of modernization, the potato ripen in advance is early gone public, increase benefit, can also increase output, have only about 80 days work-ing life but have black mulch film commonly used now, be difficult to again reclaim fully after wearing out, progressively formed large-area pollution, these principles and policies with the central Sustainable development of advocating, energy-saving and emission-reduction, harmonious development are incompatible.
Summary of the invention
For solving the problems of the prior art, the invention provides the special-purpose black function of a kind of potato mulch film, can reach its work-ing life more than 12 months, can reduce the mulch film investment thus, reduce agriculture production cost.And guarantee that the whole growth of covering potato, growth, ripening stage collection rain preserve soil moisture, are incubated, prevent the functional effect of weeds.
For this reason, take following technical scheme:
The special-purpose black function of a kind of potato mulch film is to be made by following raw materials by weight percent: LLDPE 55%-65%, LDPE 6%-15%, HDPE 5%-12%, mPE 5%-17%, the special-purpose film functional master batch of potato 6%-15%; The special-purpose film functional master batch of described potato is made by following raw materials by weight percent: LLDPE powder 10%-30%, LDPE 5%-12%, HDPE powder 5%-10%, mPE 5%-15%, carbon black 25%-40%, hindered amine as light stabilizer 4%-12%, antioxidant 1.5%-3.5%, UV light absorber 1.5%-3.5%, dispersion agent stearic acid 1.5%-3.5%, polyethylene of dispersing agent wax 1.5%-3.5%, weedicide first grass piperazine 1.5%-3.5%, 90% Dole's solution 1.5%-3.5%.
Can reach more than 12 months work-ing life of the present invention, it is short work-ing life to have solved existing common unregistered land film, easy aging problem is more than 4 times of existing common unregistered land film work-ing life, guarantees to cover the functional effect of the whole growth of potato, growth, ripening stage collection rain soil moisture conservation, insulation, anti-weeds.But also be to be easy to reclaim, environment amenable pollution-free product has effectively been protected ecotope.
The present invention also has following distinguishing feature in the potato culture underglass:
1, the potato ripen in advance is early gone public, increase benefit, can also increase output, improve the yampi rate simultaneously.
2, be applicable to arid, semiarid zone height above sea level 1800-2200 rice, rainfall amount is below 350 millimeters, and steam output is few, and the temperature difference is bigger, the potato culture underglass in the area that low temperature is lower.
3, collecting rain, suppressing steaming, drought-relief, heat insulation effect is remarkable; Potato knot potato happiness hypothermic phase adopts the present invention to increase soil moisture 3-5 ℃ than open country early stage, is conducive to growth of seedling; See that light is few, and make under the film soil moisture not because the big variation of outside air temperature changes, kept stable, ambient light is according to strong, and the resistance interception of black when temperature is high has prevented the rising of the soil moisture under the film.Heat soil moisture conservation early stage, the post drop soil moisture conservation.Cover black special function mulch film soil average moisture content 18.53%, moisturize more than 2% than contrast.Like growing of cool crop potato when being suitable for high temperature, have the function of insulation temperature adjustment.
But 4 cut weeds, and reduce farming: adopt the present invention to have the photosynthesis of soil weeds under the good block film, that suppresses and pull up weeds grows, and prevents the loss of potato desired nutritional composition, reduces field weeding farming labour intensity simultaneously.
5, the effect of increasing income is remarkable: adopt the mulching specially used culture underglass potato of black potato, because its useful soil moisture conservation, insulation temperature adjustment, weeding, acceleration soil nutrient transformation efficiency, functions such as nutrient in time are provided for crop growth, general comparable open country volume increase 80%～100%, than ordinary white plastic film mulching cultivation volume increase 25-45%, middle yampi rate improves about 25%, and about 20 days in advance ripe.
6, the generation of prevention and elimination of disease and pests: use culture underglass of the present invention, have the incidence that reduces mashed potato, lopsided potato, simultaneously because the adjusting of the soil moisture and illumination under the film, make some insect pest adaptations of can't surviving, the generation of minimizing and prevention and elimination of disease and pests.
Use cultivation mode of the present invention: adopt the two furrows of full film covering of autumn or spring to broadcast technology, but sowing must be planted at ridge face (and the corn kind is at ditch furrow).Film will be strained during plastic film mulch, is adjacent to ground, and the film on ridge head and limit, ridge will be imbedded in the soil about 10 centimetres, and bury with soil and to press sternly, reality tramps with one's feet. the main points of epiphragma GPRS " tight, tight, flat, wide ", and namely the limit will be pressed sternly, film will cover tightly, and face will be put down, and meeting light is wide.For preventing that film from being uncovered by wind, can do a little low bank of earth between fields every several meters on face.Sow behind elder generation's epiphragma, can after several days temperature in the shed rise after the plastic film mulch, begin sowing.Dig the cave with plant seedlings for a short time shovel or special drilling tool rupture of membranes, the cave is not too big, and the cave is apart from 24～26 centimetres, and the degree of depth is 8 centimetres, and it is consistent that the depth is wanted.The sprout tuber of sowing or little whole potato will cover completely with wet soil, and be patted, and seal fenestra, are not divulged a secret in the hole.
Main physical properties test-results of the present invention sees Table 1 and table 2, wherein gets the product of different batches respectively as test objective 1#, 2#, 3#.
Table 1: initial physical mechanical property
As known from Table 1, physical and mechanical properties of the present invention all meets GB GB13735-92 III class premium grads rank, and the quality index tool is good.
Table 2: different time physical and mechanical properties and retention rate are used in the land for growing field crops:
The potato raw long period is about 8 months (240 days), because its harvesting approach is the results of ploughing, so destroyed the causing of when results mulch film can not be reused again; at this moment, as known from Table 2, each physical and mechanical properties retention rate of mulch film is substantially more than 50%; be conducive to reclaim the protection environment.
Potato knot potato happiness hypothermic phase adopts black to increase soil moisture 3-5 ℃ than open country mulching specially used early stage, is conducive to growth of seedling; See that light is few, and make under the film soil moisture not because the big variation of outside air temperature changes, kept stable, ambient light is according to strong, and the resistance interception of black when temperature is high has prevented the rising of the soil moisture under the film, increases low 2-6 ℃ of the low soil moisture than open country.Heat soil moisture conservation early stage, the post drop soil moisture conservation.Cover black special function mulch film soil average moisture content 18.53%, moisturize more than 2% than contrast.Like growing of cool crop potato when being suitable for high temperature, have the function of insulation temperature adjustment.Weeding rate reaches more than 90%.
Embodiment
Embodiment 1, the special-purpose black function of a kind of potato mulch film, and be to be made by following raw materials by weight percent: LLDPE 60%, and LDPE 10%, and HDPE 8%, and mPE 12%, the special-purpose film functional master batch 10% of potato.
Embodiment 2, the special-purpose black function of a kind of potato mulch film, and be to be made by following raw materials by weight percent: LLDPE 55%, and LDPE 15%, and HDPE 6%, and mPE 15%, the special-purpose film functional master batch 9% of potato.
Embodiment 3, the special-purpose black function of a kind of potato mulch film, and be to be made by following raw materials by weight percent: LLDPE 59%, and LDPE 8%, and HDPE 10%, and mPE 17%, the special-purpose film functional master batch 6% of potato.
Embodiment 4, the special-purpose black function of a kind of potato mulch film, and be to be made by following raw materials by weight percent: LLDPE 62%, and LDPE 6%, and HDPE 12%, and mPE 5%, the special-purpose film functional master batch 15% of potato.
Embodiment 5, the special-purpose black function of a kind of potato mulch film, and be to be made by following raw materials by weight percent: LLDPE 65%, and LDPE 12%, and HDPE 5%, and mPE 6%, the special-purpose film functional master batch 12% of potato.
All raw materials described in above-described embodiment 1-5 all can be buied from disclosed market, and it mainly adopts:
The melt flow rate (MFR) g/10min of LLDPE particle is 2.0-3.0, as: 7042,7042N etc.;
The melt flow rate (MFR) g/10min of LDPE is 1.0-2.5, as: 2426H etc.;
The melt flow rate (MFR) g/10min of HDPE particle is 1.0-2.0,5000S etc.;
The melt flow rate (MFR) g/10min of mPE is 1.0-2.0, as: the strange 1810CA etc. that gets of the dust of Exxon Mobil.
The proportioning 1:LLDPE powder 17% of the special-purpose film functional master batch of the potato described in the embodiment 1-5, LDPE 7.5%, HDPE powder 7.5%, and mPE 10%, carbon black 35%, hindered amine as light stabilizer 8%, antioxidant 2.5%, UV light absorber 2.5%, dispersion agent stearic acid 2.5%, polyethylene of dispersing agent wax 2.5%, weedicide first grass piperazine 2.5%, 90% Dole's solution 2.5%.
The proportioning 2:LLDPE powder 20% of the special-purpose film functional master batch of the potato described in the embodiment 1-5, LDPE 6%, HDPE powder 6%, and mPE 12%, carbon black 40%, hindered amine as light stabilizer 6%, antioxidant 1.5%, UV light absorber 1.5%, dispersion agent stearic acid 1.5%, polyethylene of dispersing agent wax 1.5%, weedicide first grass piperazine 2%, 90% Dole's solution 2%.
The proportioning 3:LLDPE powder 30% of the special-purpose film functional master batch of the potato described in the embodiment 1-5, LDPE 5%, HDPE powder 5%, and mPE 5%, carbon black 40%, hindered amine as light stabilizer 4%, antioxidant 2%, UV light absorber 2%, dispersion agent stearic acid 2%, polyethylene of dispersing agent wax 2%, weedicide first grass piperazine 1.5%, 90% Dole's solution 1.5%.
The proportioning 4:LLDPE powder 12% of the special-purpose film functional master batch of the potato described in the embodiment 1-5, LDPE 10%, HDPE powder 10%, and mPE 7%, carbon black 30%, hindered amine as light stabilizer 12%, antioxidant 3.5%, UV light absorber 3.5%, dispersion agent stearic acid 3%, polyethylene of dispersing agent wax 3%, weedicide first grass piperazine 3%, 90% Dole's solution 3%.
The proportioning 5:LLDPE powder 10% of the special-purpose film functional master batch of the potato described in the embodiment 1-5, LDPE 12%, HDPE powder 8%, and mPE 15%, carbon black 25%, hindered amine as light stabilizer 10%, antioxidant 3%, UV light absorber 3%, dispersion agent stearic acid 3.5%, polyethylene of dispersing agent wax 3.5%, weedicide first grass piperazine 3.5%, 90% Dole's solution 3.5%.
All raw materials described in the special-purpose film functional master batch of the above-mentioned potato proportioning 1-5 all can be buied from disclosed market, and it mainly adopts:
The melt flow rate (MFR) g/10min of LLDPE powder is 2.0-3.0, as: DFDA 1920/DGM1875 etc.;
The melt flow rate (MFR) g/10min of LDPE is 2.0-3.5, as: 2426F/2420H/2240H etc.;
The melt flow rate (MFR) g/10min of HDPE powder is 1.5-2.0;
The melt flow rate (MFR) g/10min of mPE is 1.5-2.0, as: the 1018CA/2010CH of Exxon Mobil etc.;
Carbon black is the blown film level.
The preparation method of the various embodiments described above is that the technical process of blown film production is:
The preparation of the special-purpose film functional master batch of described potato: each component of the special-purpose film functional master batch of described potato is extruded tie rod → oven dry → pelletizing by the even high-speed stirring kneading → plasticizing of its proportioning get the special-purpose film functional master batch of potato; Afterwards with the special-purpose film functional master batch of the potato of gained and described LLDPE, LDPE, HDPE, mPE by described mixed → plastify → extrude → inflation → drawing-off → cool off → cut → rolling → check → packing → warehouse-in.
The main technologic parameters of described blown film production sees Table 3.
Specification of the present invention: wide 1200-1400mm, thickness: 0.095～0.016 millimeter, per 667 square metres (1 mu) uses 6～10 kilograms of films.
Table 3: the main technologic parameters that blown film is produced:
Claims (5)
1. the special-purpose black function of a potato mulch film is characterized in that being made by following raw materials by weight percent: LLDPE 55%-65%, LDPE 6%-15%, HDPE 5%-12%, mPE 5%-17%, the special-purpose film functional master batch of potato 6%-15%; The special-purpose film functional master batch of described potato is made by following raw materials by weight percent: LLDPE powder 10%-30%, LDPE 5%-12%, HDPE powder 5%-10%, mPE 5%-15%, carbon black 25%-40%, hindered amine as light stabilizer 4%-12%, antioxidant 1.5%-3.5%, UV light absorber 1.5%-3.5%, dispersion agent stearic acid 1.5%-3.5%, polyethylene of dispersing agent wax 1.5%-3.5%, weedicide first grass piperazine 1.5%-3.5%, 90% your solution 1.5%-3.5% all.
2. the special-purpose black function of a kind of potato according to claim 1 mulch film, it is characterized in that being made by following raw materials by weight percent: LLDPE 59%-62%, LDPE 8%-12%, HDPE 6%-10%, mPE 6%-15%, the special-purpose film functional master batch of potato 9%-12%; The special-purpose film functional master batch of described potato is made by following raw materials by weight percent: LLDPE powder 10%-30%, LDPE 5%-10%, HDPE powder 5%-12%, mPE 5%-15%, carbon black 25%-40%, hindered amine as light stabilizer 4%-12%, antioxidant 1.5%-3.5%, UV light absorber 1.5%-3.5%, dispersion agent stearic acid 1.5%-3.5%, polyethylene of dispersing agent wax 1.5%-3.5%, weedicide first grass piperazine 1.5%-3.5%, 90% your solution 1.5%-3.5% all.
3. the special-purpose black function of a kind of potato according to claim 1 mulch film, it is characterized in that being made by following raw materials by weight percent: LLDPE 60%, and LDPE 10%, and HDPE 8%, and mPE 12%, the special-purpose film functional master batch 10% of potato; The special-purpose film functional master batch of described potato is made by following raw materials by weight percent: LLDPE powder 10%-30%, LDPE 5%-12%, HDPE powder 5%-10%, mPE 5%-15%, carbon black 25%-40%, hindered amine as light stabilizer 4%-12%, antioxidant 1.5%-3.5%, UV light absorber 1.5%-3.5%, dispersion agent stearic acid 1.5%-3.5%, polyethylene of dispersing agent wax 1.5%-3.5%, weedicide first grass piperazine 1.5%-3.5%, 90% your solution 1.5%-3.5% all.
4. according to the special-purpose black function of each described a kind of potato mulch film among the claim 1-3, it is characterized in that the special-purpose film functional master batch of described potato made by following raw materials by weight percent: LLDPE powder 12%-20%, LDPE 6%-10%, HDPE powder 6%-8%, mPE 7%-12%, carbon black 30%-40%, hindered amine as light stabilizer 6%-10%, antioxidant 2%-3%, UV light absorber 2%-3%, dispersion agent stearic acid 2%-3%, polyethylene of dispersing agent wax 2%-3%, weedicide first grass piperazine 2%-3%, 90% your solution 2%-3% all.
5. according to the special-purpose black function of each described a kind of potato mulch film among the claim 1-3, it is characterized in that the special-purpose film functional master batch of described potato made by following raw materials by weight percent: LLDPE powder 17%, LDPE 7.5%, HDPE powder 7.5%, mPE 10%, carbon black 35%, hindered amine as light stabilizer 8%, antioxidant 2.5%, UV light absorber 2.5%, dispersion agent stearic acid 2.5%, polyethylene of dispersing agent wax 2.5%, weedicide first grass piperazine 2.5%, 90% is that solution 2.5% all.
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| CN104004266A (en) * | 2014-06-18 | 2014-08-27 | 甘肃宏鑫农业科技有限公司 | Black weeding mulching film special for potatoes |
| CN104017268B (en) * | 2014-06-18 | 2016-09-21 | 甘肃宏鑫农业科技有限公司 | The ageing-resistant long-lived mulch film of dry land crop |
| CN104341672B (en) * | 2014-10-11 | 2017-05-03 | 甘肃振海塑业有限责任公司 | Special weeding film for fruit trees and preparation process of special weeding film |
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| CN106519411A (en) * | 2016-11-04 | 2017-03-22 | 浙江家乐蜜园艺科技有限公司 | Thin film for ginger planting |
| CN106750865A (en) * | 2016-12-19 | 2017-05-31 | 钦州市钦南区科学技术情报研究所 | A kind of plastic film synthesis black functional agglomerate and preparation method thereof |
| CN108586909A (en) * | 2018-05-15 | 2018-09-28 | 营口三赢塑胶制品有限公司 | A kind of black masterbatch of mulch and preparation method thereof, black mulch film |
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| CN1103832A (en) * | 1993-12-16 | 1995-06-21 | 蔡永海 | Process for producing very thin field film for weed killing |
| CN1296423C (en) * | 2002-11-26 | 2007-01-24 | 新疆天业（集团）有限公司 | Nano material modified polythene ground covering film |
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Address after: The lotus Pavilion Road 741000 Gansu province Tianshui District No. 47 Patentee after: Gansu Tianbao Plastic Co., Ltd. Address before: The lotus Pavilion Road 741000 Gansu province Tianshui District No. 47 Patentee before: Tianshui Tianbao Plastic Co.,Ltd. |