CN102660074A - Special weather-resisting functional mulching film capable of being used for two years - Google Patents
Special weather-resisting functional mulching film capable of being used for two years Download PDFInfo
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Abstract
The invention provides a special weather-resisting functional mulching film capable of being used for two years. The special weather-resisting functional mulching film is prepared from the following raw materials in percentage by weight: 60-80% of LLDPE (Linear Low Density Polyethylene), 5-15% of LDPE (Low-Density Polyethylene), 3-8% of HDPE (High-Density Polyethylene), 5-15% of mPE (Metallocene Polyethylene) and 2-6% of anti-ageing master batch. The anti-ageing master batch is prepared from the following raw materials in percentage by weight: 35-45% of LLDPE powder, 25-35% of the LDPE, 6-15% of the HDPE, 5-12% of the mPE, 2-7% of a hindered amine light stabilizing agent, 0.5-3.5% of an antioxidant, 0.5-3.5% of an ultraviolet absorber and 1..5-5.0% of dispersing agent white oil. The special weather-resisting functional mulching film can meet the requirements of 'one film with two-year service life' of the weather-resisting functional mulching film and can be used for 12-18 months; and compared with the common mulching film, the culture under-glass increased production reaches to 30-40%, so that the stable agriculture is realized and the good supply is guaranteed.
Description
Technical field
The present invention relates to a kind of agricultural ground coating film, relate in particular to and a kind ofly be applicable to that a film 2 years that full film coverage double furrow broadcasts technology is with dedicated weather-proof function mulch film.
Background technology
Plastics film is an epoch-making progress of human use's sun power in application in agriculture, has made huge contribution for China realizes "Feeding and Clothing Project" and " vegetable basket project ", in two-supremes one is excellent, has become the indispensable production means.According to the statistics made by the departments concerned, China's mulch film annual consumption is more than 1,250,000 tons, and the culture underglass area reaches more than 3.5 hundred million mu, and the area of film mulching and planting reaches 700,000,000 mu aptly, and usage quantity increases year by year.But along with a large amount of uses of low and middle-grade plastic films, more and more thinner usage trend has appearred in the ground film thickness, area that has even the thickness that reaches 0.004mm, and this mulch film has only about 50 days work-ing life, is difficult to reclaim fully after wearing out.The agricultural ground of GB GB13735-92 blow moulded polyethyene coating film I class 0.012mm and above thickness add weather resisting agent and recommend duration of service only 120 days (4 months), and III class 0.008mm thickness adds weather resisting agent and recommends only 80 days duration of service.According to relevant department's measuring and calculating, some useless mulch film residual amount in soil in membrane covering plantation area is 6-7%, and indivedual areas are up to 13-14%.Because the prolongation of duration of service is accumulated over a long period, and causes soil compaction, crop root mineral element ion migration is obstructed, and has progressively formed serious large-area " white pollution ".Along with further going deep into of west development policy, conceding the land to forestry is carried out in more western provinces and policies such as construction land are examined in strictness, and arable area is reduced year by year.And grain solves the ever-increasing actual needs of population as main strategic material and people's livelihood primary demand with limited soil, has become a long-range strategic task of China's agricultural sustainable development.Therefore drought-relief, the effect of increasing income day owing to the agripast mulch film shows important.But the pollution of its formation is incompatible again with the principles and policies of the central Sustainable development of advocating, energy-saving and emission-reduction, harmonious development.
Summary of the invention
Be to solve the problems of the prior art, the present invention provides an a kind of film 2 years with dedicated weather-proof function mulch film, can reach 12-18 month its work-ing life, can reduce the mulch film investment thus, reduce agriculture production cost.Guarantee the whole growth of nurse crop, growth, ripening stage collection rain soil moisture conservation, insulation, effectively suppress weeds in field, alleviate the functional effect of the saline and alkaline harm of soil.But also be to be easy to reclaim, environment amenable pollution-free product has effectively been protected ecotope.
For this reason, take following technical scheme:
An a kind of film was to be processed by following raw materials by weight percent with dedicated weather-proof function mulch film in 2 years: LLDPE 60%-80%, LDPE 5%-15%, HDPE4%-8%, mPE 7%-15%, ageing-resistant masterbatch 3%-6%.
Further, described LLDPE is that both of 2.0-3.0 and 1.0-2.0 are with the ratio proportioning of 3-2.2:1 for melt flow rate(MFR) g/10min.
Described ageing-resistant masterbatch is to be processed by following raw materials by weight percent: LLDPE powder 35%-45%; LDPE 25%-35%, HDPE 6%-15%, mPE 5%-12%; Hindered amine as light stabilizer 2%-7%; Inhibitor 0.5%-3.5%, UV light absorber 0.5%-3.5%, dispersion agent white oil 1.5%-5.0%.
Main physical properties test-results of the present invention is seen table 1 and table 2, and the product of wherein getting different batches is respectively as test objective 1#, 2#, 3#, 4#.
Table 1: initial physical mechanical property
Can know that from table 1 physical and mechanical properties of the present invention all meets GB GB13735-92 III class premium grads rank, 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:
Can know from table 2: with the big Tanaka continuity of duration of service, various physical and mechanical propertiess and retention rate linearly descend basically.Cover-seeding of the present invention can be divided into overlay film in autumn, top and insult overlay film, spring three types of overlay films.Autumn overlay film to insult overlay film with the top be in October and February next year then.Basic procedure is: full width ridging overlay film; Overlay film when mulch film and ground are close to, is beaten the infiltration hole about one week in the middle of two furrows, utilize autumn and winter snow and rain water-harvesting to infiltrate, fully soil moisture conservation.The function of mulch film mainly shows, the main soil moisture conservation insulation effect that rises, and through winter with spring moisture through the artificial space infiltration of two ridge intermediary soil.This stage physical and mechanical properties retention rate is basically all more than 85%.April begins dibbling, emerges.Through hot summer and autumn, when using 12 months, physical and mechanical properties and retention rate suppression ratio are more serious, remain between the 60-75%.Crop harvesting is protected overlay film later on meticulously, will not take off film and remove, and passes through the winter of next year again, and when using 15 months, physical and mechanical properties and retention rate suppression ratio are less, remain between the 50-60%.When dibbling in the 3rd year, fertilising, when emerging, even when reaching 18 months with the time, physical and mechanical properties and retention rate suppression ratio are bigger, and be basically between 30-40%, aging and beginning is damaged.
Obviously, the present invention can satisfy the requirement in work-ing life of weathering resistance mulch film " film 2 years with ", reaches 12-18 month;
The present invention is applicable to that arid, the full film of semiarid zone drought-resistant agriculture cover and suppressed moisture evaporation, and increase ground temperature, insulation soil moisture conservation effect are showing;
The present invention reduces agriculture production cost, increases soil fertility, and the effect of increasing income is showing, and the raising the output of comparable common ground film culture underglass is up to 30-40%, has realized agriculturely stablizing, having guaranteed grain-supply, make overall plans scientific development.
The present invention can be applicable to the culture underglass of corn, yam, sunflower, pumpkin, watermelon and interplanting corn yam, pea, radish, tonka-bean etc.Be applied to wheat except that each function of corn culture underglass that has, also can reduce and the control effect of prevention and elimination of disease and pests, especially stripe rust more obvious, reduce the usage quantity of agricultural chemicals.
The present invention uses the back to be prone to reclaim, and improves the ecological environment, and reduces " white pollution ", and people-oriented, promotes people and ecological harmonious development; Promote the agriculture, rural areas and farmers scientific development.
Embodiment
Embodiment 1, and be to be processed by following raw materials by weight percent: LLDPE 70% with dedicated weather-proof function mulch film in 2 years for an a kind of film; Wherein melt flow rate(MFR) g/10min is the LLDPE 50% of 2.0-3.0; Melt flow rate(MFR) g/10min is the LLDPE 20% of 1.0-2.0, and LDPE 10%, and HDPE 6%; MPE 10%, ageing-resistant masterbatch 4%.
Embodiment 2, and be to be processed by following raw materials by weight percent: LLDPE 60% with dedicated weather-proof function mulch film in 2 years for an a kind of film; Wherein melt flow rate(MFR) g/10min is the LLDPE 45% of 2.0-3.0; Melt flow rate(MFR) g/10min is the LLDPE 15% of 1.0-2.0, and LDPE 15%, and HDPE 4%; MPE 15%, ageing-resistant masterbatch 6%.
Embodiment 3, and be to be processed by following raw materials by weight percent: LLDPE 65% with dedicated weather-proof function mulch film in 2 years for an a kind of film; Wherein melt flow rate(MFR) g/10min is the LLDPE 47% of 2.0-3.0; Melt flow rate(MFR) g/10min is the LLDPE 18% of 1.0-2.0, and LDPE 12%, and HDPE 8%; MPE 12%, ageing-resistant masterbatch 3%.
Embodiment 4, and be to be processed by following raw materials by weight percent: LLDPE 74% with dedicated weather-proof function mulch film in 2 years for an a kind of film; Wherein melt flow rate(MFR) g/10min is the LLDPE 52% of 2.0-3.0; Melt flow rate(MFR) g/10min is the LLDPE 22% of 1.0-2.0, and LDPE 7%, and HDPE 7%; MPE 7%, ageing-resistant masterbatch 5%.
Embodiment 5, and be to be processed by following raw materials by weight percent: LLDPE 80% with dedicated weather-proof function mulch film in 2 years for an a kind of film; Wherein melt flow rate(MFR) g/10min is the LLDPE 55% of 2.0-3.0; Melt flow rate(MFR) g/10min is the LLDPE 25% of 1.0-2.0, and LDPE 5%, and HDPE 5%; MPE 7%, ageing-resistant masterbatch 3%.
All raw materials described in the foregoing description 1-5 all can be buied from disclosed market, adopt among the said embodiment:
LLDPE particulate melt flow rate(MFR) g/10min is 2.0-3.0, as: 7042,7042N etc.;
LLDPE particulate melt flow rate(MFR) g/10min is 1.0-2.0, the 0218D that produces like Canada etc.;
The melt flow rate(MFR) g/10min of LDPE is 1.0-2.2, as: 2426H etc.;
The melt flow rate(MFR) g/10min of HDPE is 0.8-1.5, as: 5000S etc.;
The melt flow rate(MFR) g/10min of mPE is 0.7-2.0, by Exxon Mobil produce 342 etc.;
The proportioning 1 of the ageing-resistant masterbatch described in the embodiment 1-5: be to process by following raw materials by weight percent: LLDPE powder 40%, LDPE 30%, and HDPE 10%; MPE 8%, hindered amine as light stabilizer 5%, inhibitor 2%; UV light absorber 2%, dispersion agent white oil 3%.
The proportioning 2 of the ageing-resistant masterbatch described in the embodiment 1-5: be to process by following raw materials by weight percent: LLDPE powder 35%, LDPE 35%, and HDPE 15%; MPE 5%, hindered amine as light stabilizer 7%, inhibitor 0.5%; UV light absorber 1%, dispersion agent white oil 1.5%.
The proportioning 3 of the ageing-resistant masterbatch described in the embodiment 1-5: be to process by following raw materials by weight percent: LLDPE powder 37%, LDPE 32%, and HDPE 12%; MPE 7%, hindered amine as light stabilizer 3%, inhibitor 3%; UV light absorber 3.5%, dispersion agent white oil 2.5%.
The proportioning 4 of the described ageing-resistant masterbatch of embodiment 1-5: be to process by following raw materials by weight percent: LLDPE powder 42%, LDPE 27%, and HDPE 8%; MPE 12%, hindered amine as light stabilizer 2%, inhibitor 1%; UV light absorber 3%, dispersion agent white oil 5.0%.
The proportioning 5 of the described ageing-resistant masterbatch of embodiment 1-5: be to process by following raw materials by weight percent: LLDPE powder 45%, LDPE 25%, and HDPE 6%; MPE 10%, hindered amine as light stabilizer 6%, inhibitor 3.5%; UV light absorber 0.5%, dispersion agent white oil 4.0%.
All raw materials described in the above-mentioned ageing-resistant masterbatch proportioning 1-5 all can be buied from disclosed market, mainly adopt in its proportioning:
The melt flow rate(MFR) g/10min of LLDPE powder is 2.0-3.0, as: DGM1820 etc.;
The melt flow rate(MFR) g/10min of LDPE is 2.0-2.5;
The melt flow rate(MFR) g/10min of HDPE is 1.5-3.0;
The melt flow rate(MFR) g/10min of mPE is 1.5-3.0;
The preparation method of above-mentioned each embodiment is that the technical process of blown film production is:
The preparation of said ageing-resistant masterbatch: each component of said ageing-resistant masterbatch is extruded tie rod → oven dry → pelletizing by the even high-speed stirring kneading → plasticizing of its proportioning get ageing-resistant masterbatch; Afterwards with the ageing-resistant masterbatch of gained and described LLDPE, LDPE, HDPE, mPE proportional mixing → plastify → extrude → inflation → drawing-off → cool off → cut → rolling → check → packing → warehouse-in.
The main technologic parameters of said blown film production is seen table 3.
Products obtained therefrom specification: 1200 * (0.008 ± 0.001) mm
10 ± 0.15kg/ volume
Table 3: the main technologic parameters that blown film is produced
Claims (7)
1. a film is characterized in that being processed by following raw materials by weight percent: LLDPE 60%-80%, LDPE 5%-15%, HDPE4%-8%, mPE 7%-15%, ageing-resistant masterbatch 3%-6% with dedicated weather-proof function mulch film in 2 years.
2. an a kind of film according to claim 1 is characterized in that being processed by following raw materials by weight percent with dedicated weather-proof function mulch film in 2 years: LLDPE 65%-74%, LDPE 7%-12%, HDPE 5%-7%, mPE 7%-12%, ageing-resistant masterbatch 3%-5%.
3. it is characterized in that being processed by following raw materials by weight percent: LLDPE 70% with dedicated weather-proof function mulch film in 2 years for an a kind of film according to claim 1, and LDPE 10%, and HDPE 6%, and mPE 10%, ageing-resistant masterbatch 4%.
According to each described a kind of film among the claim 1-3 2 years with dedicated weather-proof function mulch film, it is characterized in that described LLDPE is that both of 2.0-3.0 and 1.0-2.0 are with the ratio proportioning of 3-2.2:1 for melt flow rate(MFR) g/10min.
5. it is characterized in that described ageing-resistant masterbatch was to be processed by following raw materials by weight percent: LLDPE powder 35%-45%, LDPE 25%-35% with dedicated weather-proof function mulch film in 2 years according to any described a kind of film among the claim 1-3; HDPE 6%-15%; MPE 5%-12%, hindered amine as light stabilizer 2%-7%, inhibitor 0.5%-3.5%; UV light absorber 0.5%-3.5%, dispersion agent white oil 1.5%-5.0%.
6. an a kind of film according to claim 5 is characterized in that described ageing-resistant masterbatch was to be processed by following raw materials by weight percent: LLDPE powder 37%-42%, LDPE 27%-32% with dedicated weather-proof function mulch film in 2 years; HDPE 8%-12%; MPE 7%-10%, hindered amine as light stabilizer 3%-6%, inhibitor 1%-3%; UV light absorber 1%-3%, dispersion agent white oil 2.5%-4.0%.
7. an a kind of film according to claim 5 is characterized in that with dedicated weather-proof function mulch film that described ageing-resistant masterbatch was to be processed by following raw materials by weight percent in 2 years: LLDPE powder 40%, and LDPE 30%; HDPE 10%; MPE 8%, hindered amine as light stabilizer 5%, inhibitor 2%; UV light absorber 2%, dispersion agent white oil 3%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210155395.3A CN102660074B (en) | 2012-05-18 | 2012-05-18 | Special weather-resisting functional mulching film capable of being used for two years |
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| CN201210155395.3A CN102660074B (en) | 2012-05-18 | 2012-05-18 | Special weather-resisting functional mulching film capable of being used for two years |
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| CN102660074B CN102660074B (en) | 2014-01-15 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214725A (en) * | 2013-05-11 | 2013-07-24 | 云南中蔗农业科技有限责任公司 | Oxidation resistant long-acting mulch film for sugar cane |
| CN105367887A (en) * | 2015-12-08 | 2016-03-02 | 山东棉花研究中心 | Environment-friendly mulching film easy for recycling and preparation method thereof |
| CN105850465A (en) * | 2016-04-27 | 2016-08-17 | 宁夏农林科学院固原分院 | Dryland crop planting method adopting three-purpose film |
| CN106234087A (en) * | 2016-07-21 | 2016-12-21 | 兰州金土地塑料制品有限公司 | Environment-friendly type Reusability agricultural mulch films |
| CN107337836A (en) * | 2017-07-13 | 2017-11-10 | 大禹节水（天津）有限公司 | A kind of resistance to oxidation polyethylene drip irrigation zone and preparation method thereof |
| CN108450262A (en) * | 2018-03-30 | 2018-08-28 | 贾娟娟 | A kind of no-tillage 2 years three stubble cutting and planting methods of a film 2 years |
| CN109749212A (en) * | 2017-11-03 | 2019-05-14 | 中国石油天然气股份有限公司 | A kind of mulch and preparation method thereof |
| CN111471201A (en) * | 2020-05-20 | 2020-07-31 | 江苏大海塑料股份有限公司 | High-cleanness film and preparation method thereof |
| CN113105686A (en) * | 2021-04-19 | 2021-07-13 | 云南雷马塑料制品有限公司 | Special shed film for flowers and preparation method thereof |
| CN114619739A (en) * | 2022-03-11 | 2022-06-14 | 揭阳市千田塑胶有限公司 | Rainproof reflective film for truck and preparation method thereof |
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Patent Citations (2)
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| CN1056696A (en) * | 1990-03-23 | 1991-12-04 | 中国科学院长春应用化学研究所 | Weather-resistant polyethylene film |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214725A (en) * | 2013-05-11 | 2013-07-24 | 云南中蔗农业科技有限责任公司 | Oxidation resistant long-acting mulch film for sugar cane |
| CN105367887A (en) * | 2015-12-08 | 2016-03-02 | 山东棉花研究中心 | Environment-friendly mulching film easy for recycling and preparation method thereof |
| CN105850465A (en) * | 2016-04-27 | 2016-08-17 | 宁夏农林科学院固原分院 | Dryland crop planting method adopting three-purpose film |
| CN106234087A (en) * | 2016-07-21 | 2016-12-21 | 兰州金土地塑料制品有限公司 | Environment-friendly type Reusability agricultural mulch films |
| CN107337836A (en) * | 2017-07-13 | 2017-11-10 | 大禹节水（天津）有限公司 | A kind of resistance to oxidation polyethylene drip irrigation zone and preparation method thereof |
| CN109749212A (en) * | 2017-11-03 | 2019-05-14 | 中国石油天然气股份有限公司 | A kind of mulch and preparation method thereof |
| CN108450262A (en) * | 2018-03-30 | 2018-08-28 | 贾娟娟 | A kind of no-tillage 2 years three stubble cutting and planting methods of a film 2 years |
| CN111471201A (en) * | 2020-05-20 | 2020-07-31 | 江苏大海塑料股份有限公司 | High-cleanness film and preparation method thereof |
| CN113105686A (en) * | 2021-04-19 | 2021-07-13 | 云南雷马塑料制品有限公司 | Special shed film for flowers and preparation method thereof |
| CN114619739A (en) * | 2022-03-11 | 2022-06-14 | 揭阳市千田塑胶有限公司 | Rainproof reflective film for truck and preparation method thereof |
| CN114619739B (en) * | 2022-03-11 | 2023-12-19 | 揭阳市千田塑胶有限公司 | Rainproof reflective film for trucks and preparation method thereof |
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| CN102660074B (en) | 2014-01-15 |
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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. |