CN1305953C - Method for producing agglomerate of plastic agricultural film possessing function for expelling pests - Google Patents
Method for producing agglomerate of plastic agricultural film possessing function for expelling pests Download PDFInfo
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- CN1305953C CN1305953C CNB2005100654891A CN200510065489A CN1305953C CN 1305953 C CN1305953 C CN 1305953C CN B2005100654891 A CNB2005100654891 A CN B2005100654891A CN 200510065489 A CN200510065489 A CN 200510065489A CN 1305953 C CN1305953 C CN 1305953C
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Abstract
The present invention relates to a method for producing master batches of plastic agricultural films with a function of expelling pests, which uses insectifuges (4 to 5% of flufenoxuron, 2 to 3% of acetamiprid, and 2 to 3% of amitraz), 1.4 to 1.8% of PE wax, 36 to 42% of calcium silicates, 0.6 to 0.8% of silane coupling agents, 44 to 50% of EVA, and 0.8 to 1.2% of ultraviolet absorbents UV531 as materials which are wrapped, dispersed, coupled, mixed internally and plasticized, extruded and cut into granules. The master batches of plastic agricultural films are added to LDPE resin in a proportion of 3 to 4% and are produced into films of which the thickness is from 50 to 80 um by blow molding for covering and planting crops such as vegetables and amphisarca on farmlands. The insectifuges in the films release slowly; compared with the LDPE films having the same thickness, the plastic agricultural films produced by the present invention can effectively expel pests such as bugs, leafhoppers, needle rollers, vegetable insects, budworms, red spiders, etc. to achieve the goal of a little pesticide consumption or pesticide free, reduces the pesticide residue of crops largely, is favorable to improve and enhance the nutritional quality of the crops, prompts the prematurity of the crops and increases income.
Description
Technical field
The present invention relates to the preparation method of functional plastic film master batch, is a kind of preparation method with agglomerate of plastic agricultural film of function for expelling pests specifically.
Background technology
For a long time, insect pest is a great problem that influences crop yield always, vegetable melon and fruit class crop especially, and insect pest is more and more serious.Someone did statistics, and insect pest influences the crop yield of vegetable melon and fruit class and reaches 40-70%.For avoiding and solve the insect pest problem, the plantation family was once adopted traditional light to draw worm and is catched and killed or burn and contain aromatic hydrocarbon spirea expulsion winged insect, but the scope and the effect of expulsion insect pest are limited.And the insect of a large amount of danger to vegetables melon or fruit type crops such as tortrix moth, cabbage caterpillar, heart-eating worm, aphid, scale insect, red spider, traditional method is difficult to expulsion, mainly by spraying chemical pesticide insect pest is killed.China's agricultural chemicals year usage quantity is 80～1,000,000 tons, wherein uses the chemical pesticide aspect farm crop to account for 70%, and long-term and a large amount of use chemical pesticide has not only caused environmental pollution, and is seriously endangering the health of human body.Show according to the investigation of agricultural plant protection department; in vegetable melon and fruit class crop-planting, used the plantation family of riskiest pesticide to reach 30%; the plantation family was used chemical pesticide one time in general per 7～10 days; in harvesting time in last week, also used chemical pesticide usually; cause the pesticide residue on the vegetable melon and fruit too high, directly influenced the healthy of human consumer.For this reason, how to change existing insect-repelling method and insecticide-applying way, avoid or reduce agricultural chemicals being sprayed directly on the farm crop surface, the environmental pollution that the minimizing chemical pesticide causes has caused researchist's concern.Retrieve a large amount of patent documentations and the research paper of publishing, do not find as yet to carry out the anthelmintic relevant report by functional agricultural film.
Summary of the invention
In order to overcome present use plastic agricultural film planting vegetable melon or fruit type crops, can't adopt effective insect-repelling method, and have to farm crop are used the defective that a large amount of chemical pesticides aspect exists, the invention provides a kind of the interpolation in the plastic agricultural film course of processing through coating disperses, coupling processing, internal mixing and plasticizing, extrude the technical scheme of the agglomerate of plastic agricultural film that pelletizing processes with function for expelling pests, its technical characterictic is: with wormer (flufenoxuron, acetamiprid, amitraz), PE wax, Calucium Silicate powder, silane coupling agent, EVA and ultraviolet absorbers UV531 are material, disperse through coating, coupling processing, internal mixing and plasticizing, extrude pelletizing and be processed into agglomerate of plastic agricultural film.This master batch adds in the LDPE resin with 3～4% ratio, makes thickness 50～80um film by blow molding process, is used for farmland mulching plant vegetable melon and fruit class crop.Because the slow release of wormer in the film, compare with the ldpe film that covers condition of equivalent thickness, can expel insects such as winged insect, leafhopper, tortrix moth, cabbage caterpillar, heart-eating worm, red spider effectively, reach the purpose that uses no or little agricultural chemicals, avoid agricultural chemicals directly to contact with vegetable melon and fruit, reduce pesticide residue in the crop, help improving the nutritional quality of crop, promote the crop premature labor to increase income.
For realizing that the concrete technical scheme that the object of the invention adopted is:
The EVA of material VA content 15～18%, flufenoxuron, acetamiprid, amitraz, molecular weight are 500～800 PE wax, particle diameter is the Calucium Silicate powder of 1～5um, silane coupling agent, ultraviolet absorbers UV531.
Prescription EVA 44～50%, flufenoxuron 4～5%, acetamiprid 2～3%, amitraz 2～3%, PE wax 1.4～1.8%, Calucium Silicate powder 36～42%, silane coupling agent 0.6～0.8%, ultraviolet absorbers UV531 0.8～1.2%.
The preparation method places stirrer with flufenoxuron, acetamiprid, amitraz by formula rate, adds PE wax, control rotating speed 200r.p.m, and 72 ± 1 ℃ of temperature coat and disperse to become raw material I after 10 minutes and place Banbury mixer; Calucium Silicate powder is placed kneader, control rotating speed 500r.p.m, 105 ± 1 ℃ of temperature, mediate and add silane coupling agent after 20 minutes, coupling processing becomes raw material II and places Banbury mixer to mix with raw material I after 8 minutes, add EVA and ultraviolet absorbers UV531 again, 128 ± 2 ℃ of control Banbury mixer temperature, internal mixing and plasticizing 10 minutes; After twin screw extruder, the control barrel temperature: 125～128 ℃ in I district, 130～133 ℃ in II district, 135～138 ℃ in III district, 130～133 ℃ in IV district, 122～125 ℃ of die heads are extruded pelletizing and are formed the agglomerate of plastic agricultural film with function for expelling pests.
The master batch of the present invention's preparation adds in the LDPE resin with 3～4% ratio, makes thickness 50～80um film by blowing, and the result shows: master batch relative density: 1.2 ± 0.1g/cm
3, melt flow rate (MFR): 3～5g/10min, water content≤0.2%; The film visible light transmissivity: 83～88%, film infrared line transmitance: 30～45%, film stretching intensity 〉=12Mpa, film elongation at break 〉=300%, deworming rates 〉=90%, expelling parasite timeliness 60～80 days.
The invention has the beneficial effects as follows and adopt that three kinds of flufenoxurons, acetamiprid, amitraz are composite to be wormer, thereby improved expelling parasite scope and deworming rates; Employing EVA is a vector resin, and Calucium Silicate powder is a heat preserving agent, and (7～11um) transmitances have improved the heat-insulating property of film to reduce the film middle infrared (Mid-IR) significantly; Add ultraviolet absorbers UV531, improved the weather-resistant property of film; Adopt and coat dispersion, coupling processing technology and internal mixing and plasticizing, twin screw expressing technique, thereby improved the dispersing uniformity of wormer and Calucium Silicate powder, improve resin dedicated melt fluidity and processing characteristics, satisfy process for processing requirement of expelling parasite insulation film made and service requirements.
Description of drawings
Below in conjunction with drawings and Examples, the present invention is described in further detail:
Fig. 1 is a preparation process skeleton diagram of the present invention
It is composite at first to place stirrer to carry out flufenoxuron, acetamiprid, amitraz among Fig. 1, coats behind the adding PE wax and disperses to be prepared into raw material I; Calucium Silicate powder placed kneader and add silane coupling agent and carry out coupling processing and be prepared into raw material II, merge raw material I, raw material II, add EVA and ultraviolet absorbers again and carry out internal mixing and plasticizing; Extrude pelletizing through twin screw extruder again and form the agglomerate of plastic agricultural film finished product.
Embodiment
Embodiment 1:
Flufenoxuron 4.7kg, acetamiprid 2.8kg, amitraz 2.8kg are placed stirrer, and adding molecular weight is 600PE wax 1.75kg, control rotating speed 200r.p.m, and 72 ℃ of temperature coat and disperse to be placed in the Banbury mixer in 10 minutes; With particle diameter is that 1～5um Calucium Silicate powder 40kg places kneader, control rotating speed 500r.p.m, and 105 ℃ of temperature are mediated adding silane coupling agent 0.75kg after 20 minutes, and coupling processing was placed in the Banbury mixer in 8 minutes; Add EVA (VA content 16%) 49kg and ultraviolet absorbers UV531 1.1kg again, 128 ℃ of control Banbury mixer temperature, internal mixing and plasticizing 10 minutes; Extrude through twin screw extruder, pelletizing forms master batch again.Control extruder barrel temperature: 126 ℃ in I district, 133 ℃ in II district, 136 ℃ in III district, 132 ℃ in IV district, 123 ℃ of die heads are extruded pelletizing and are formed agglomerate of plastic agricultural film.
Embodiment 2:
Flufenoxuron 4.3kg, acetamiprid 2.2kg, amitraz 2.2kg are placed stirrer, add PE wax (molecular weight 600) 1.5kg, control rotating speed 200r.p.m, 72 ℃ of temperature coat and disperse to be placed in the Banbury mixer in 10 minutes; With particle diameter is that 1～5um Calucium Silicate powder 37kg places kneader, control rotating speed 500r.p.m, and 105 ℃ of temperature are mediated adding silane coupling agent 0.65kg after 20 minutes, and coupling processing was placed in the Banbury mixer in 8 minutes; Add EVA (VA content 16%) 45kg and ultraviolet absorbers UV531 0.9kg again, 128 ℃ of control Banbury mixer temperature, internal mixing and plasticizing 10 minutes; Extrude through twin screw extruder, pelletizing forms master batch again.The control barrel temperature: 126 ℃ in I district, 133 ℃ in II district, 136 ℃ in III district, 132 ℃ in IV district, 123 ℃ of die heads are extruded pelletizing and are formed agglomerate of plastic agricultural film.
Claims (8)
1, a kind of preparation method of agglomerate of plastic agricultural film is characterized in that:
Prescription EVA 44～50%, flufenoxuron 4～5%, acetamiprid 2～3%, amitraz 2～3%, PE wax 1.4～1.8%, Calucium Silicate powder 36～42%, silane coupling agent 0.6～0.8%, ultraviolet absorbers UV531 0.8～1.2%;
The preparation method with flufenoxuron, acetamiprid, amitraz is composite is placed in the stirrer, adds PE wax, coat to disperse to become raw material I after 10 minutes and place Banbury mixer; Calucium Silicate powder is placed kneader, mediate and add silane coupling agent after 20 minutes, coupling processing becomes raw material II and places Banbury mixer to mix with raw material I after 8 minutes, add EVA and ultraviolet absorbers UV531 again, internal mixing and plasticizing 10 minutes; , twin screw extruder forms agglomerate of plastic agricultural film after extruding pelletizing.
2, the preparation method of agglomerate of plastic agricultural film according to claim 1 is characterized in that described EVA resin VA content is 15～18%.
3, the preparation method of agglomerate of plastic agricultural film according to claim 1 is characterized in that described PE wax molecular weight is 500～800.
4, the preparation method of agglomerate of plastic agricultural film according to claim 1 is characterized in that described Calucium Silicate powder particle diameter is 1～5um.
5, the preparation method of agglomerate of plastic agricultural film according to claim 1 is characterized in that the rotating speed of stirrer was 200r.p.m when described coating disperseed, and temperature is 72 ± 1 ℃.
6, the preparation method of agglomerate of plastic agricultural film according to claim 1, the rotating speed of kneader is 500r.p.m when it is characterized in that described coupling processing, temperature is 105 ± 1 ℃.
7, the preparation method of agglomerate of plastic agricultural film according to claim 1 is characterized in that the temperature of Banbury mixer in the described internal mixing and plasticizing process is controlled at 128 ± 2 ℃.
8, the preparation method of agglomerate of plastic agricultural film according to claim 1, it is characterized in that describedly extruding that the twin screw extruder barrel temperature is controlled at 125～128 ℃ in I district in the pelletizing process, 130～133 ℃ in II district, 135～138 ℃ in III district, 130～133 ℃ in IV district, 122～125 ℃ of die heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100654891A CN1305953C (en) | 2005-04-06 | 2005-04-06 | Method for producing agglomerate of plastic agricultural film possessing function for expelling pests |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100654891A CN1305953C (en) | 2005-04-06 | 2005-04-06 | Method for producing agglomerate of plastic agricultural film possessing function for expelling pests |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1687214A CN1687214A (en) | 2005-10-26 |
| CN1305953C true CN1305953C (en) | 2007-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100654891A Expired - Fee Related CN1305953C (en) | 2005-04-06 | 2005-04-06 | Method for producing agglomerate of plastic agricultural film possessing function for expelling pests |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617906B (en) * | 2012-02-09 | 2013-09-25 | 西华大学 | Storage, sterilization and pest preventing freshness-keeping film for broad bean, and preparation method thereof |
| CN103571014B (en) * | 2013-10-13 | 2016-10-05 | 甘春丽 | A kind of compositions, its function film and preparation method |
| CN105440422A (en) * | 2015-12-04 | 2016-03-30 | 山东春潮集团有限公司 | Agricultural film master batch based on sustained release heat insulation and preparing method thereof |
| CN107593757A (en) * | 2017-08-28 | 2018-01-19 | 赵德友 | A kind of blue desinsection expelling parasite master batch, preparation method and the agricultural film containing the master batch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5514080A (en) * | 1978-05-08 | 1980-01-31 | Pfizer | Improved discharge device |
| CN1088225A (en) * | 1992-12-18 | 1994-06-22 | 中国国际科技促进会 | Vegetable fibre film product and technology thereof |
| CN1414831A (en) * | 1999-11-25 | 2003-04-30 | Dct私人有限公司 | Composition for impregnation of fabrics and nettings |
| JP2007254595A (en) * | 2006-03-23 | 2007-10-04 | Jsr Corp | Composition for forming insulating film, polymer and process for producing the same, process for producing insulating film, and silica-based insulating film |
-
2005
- 2005-04-06 CN CNB2005100654891A patent/CN1305953C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5514080A (en) * | 1978-05-08 | 1980-01-31 | Pfizer | Improved discharge device |
| CN1088225A (en) * | 1992-12-18 | 1994-06-22 | 中国国际科技促进会 | Vegetable fibre film product and technology thereof |
| CN1414831A (en) * | 1999-11-25 | 2003-04-30 | Dct私人有限公司 | Composition for impregnation of fabrics and nettings |
| JP2007254595A (en) * | 2006-03-23 | 2007-10-04 | Jsr Corp | Composition for forming insulating film, polymer and process for producing the same, process for producing insulating film, and silica-based insulating film |
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| CN1687214A (en) | 2005-10-26 |
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Granted publication date: 20070321 Termination date: 20120406 |