CN110643100A - Special green mulching film for peanuts and preparation method thereof - Google Patents

Special green mulching film for peanuts and preparation method thereof Download PDF

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Publication number
CN110643100A
CN110643100A CN201910992118.XA CN201910992118A CN110643100A CN 110643100 A CN110643100 A CN 110643100A CN 201910992118 A CN201910992118 A CN 201910992118A CN 110643100 A CN110643100 A CN 110643100A
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special
peanuts
mulching film
mixed material
film
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孙美菊
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HENAN YINFENG PLASTIC CO Ltd
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HENAN YINFENG PLASTIC CO Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0256—Ground coverings
    • A01G13/0268—Mats or sheets, e.g. nets or fabrics
    • A01G13/0275—Films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates

Abstract

The invention relates to the field of agricultural film manufacturing, in particular to a special green mulching film for peanuts and a preparation method thereof; the special green mulching film for peanuts is prepared from the following raw materials in parts by weight: 80-85% of linear polyethylene; 8-12% of metallocene; 5-9% of special filler. The special green mulching film for peanuts not only has the functions of heat preservation, soil moisture preservation and weeding, but also solves the problem that the peanut needles are easy to burn, and improves the survival rate of the peanut needles and the fruit setting rate of the peanuts; and the preparation method is scientific, reasonable, simple and feasible.

Description

Special green mulching film for peanuts and preparation method thereof
Technical Field
The invention relates to the field of agricultural plastic film manufacturing, in particular to a special green mulching film for peanuts and a preparation method thereof.
Background
Peanuts, belonging to the order of Rosales, leguminous annual herbaceous plants, are an important source of edible oil in China, and become one of the necessities of people's life. The peanuts are suitable for growing in sandy soil areas with warm climate and moderate rainfall, are widely planted in China, especially have large planting area in the north, and have strategic significance for food planting in China.
Peanuts are planted by changing the traditional planting mode into mulching film mulching planting mode, the white mulching film solves the problems of soil heat preservation and soil moisture preservation, but weeds grow in the peanut growing process, manual weeding is needed, and labor and time are wasted. In order to further solve the weeding problem, researchers develop black mulching films, which are also called physical weeding; after years of practical application, people find that due to the fact that the surface heat absorption value of the black mulching film is high, when peanuts grow fruit needles and contact the surface of the black mulching film, the fruit needles are easily burnt, and fruit setting rate is reduced and yield is reduced.
In the growth cycle of peanuts, in order to achieve the purposes of heat preservation, soil moisture preservation and weeding and prevent the occurrence of burn of peanut needles, people urgently need to develop a special green mulching film for peanuts to meet various requirements in the growth of the peanuts.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the special green mulching film for the peanuts and the preparation method thereof, which not only solve the problems of heat preservation, soil moisture preservation and weeding, but also improve the survival rate of the peanut pins and the peanut fruit setting rate.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a special green mulching film for peanuts is prepared from the following raw materials in parts by weight:
80-85% of a base material;
8-12% of metallocene;
5-9% of special filler.
Preferably, the special filler is prepared from the following raw materials in parts by weight: 12-18% of phthalocyanine blue pigment, 12-18% of light yellow pigment, 3-7% of polyethylene wax, 50-60% of polyethylene and 8-12% of titanium dioxide.
Preferably, the conductivity of the phthalocyanine blue pigment is less than or equal to 200 s/cm, the pH of the phthalocyanine blue pigment is 7.5 +/-1.5, and the temperature resistance of the phthalocyanine blue pigment is 280-300 ℃.
Preferably, the substrate is a linear polyethylene or a modified linear polyethylene; the modified linear polyethylene comprises the following components in percentage by mass (10-20): (0.1-3) linear polyethylene and tea polyphenol.
A preparation method of a special green mulching film for peanuts comprises the following steps:
(1) preparing a special filler, namely adding phthalocyanine blue pigment and light yellow pigment into a high-speed stirrer, stirring for 4-6 min, adding polyethylene wax, polyethylene and titanium dioxide into the high-speed stirrer, and continuously stirring for 4-6 min to obtain a mixed material S1; adding the mixed material S1 into a double-screw extruder for granulation to prepare a special filler;
(2) preparing a mixed material, namely adding linear polyethylene, metallocene and the special filler into a low-speed stirrer to stir to obtain a mixed material S2;
(3) and preparing a green mulching film, namely adding the mixed material S2 into a film blowing machine, extruding the mixed material S2 to a machine head by the film blowing machine, carrying out inflation, and carrying out upper traction, guide roller and metering rolling to obtain the special green mulching film for peanuts with the thickness of 0.010-0.012 mm.
Preferably, in step (1), the temperature of the extrusion zone of the twin-screw extruder is, in order: t is1=155℃，T2=165℃，T3=180℃，T4=175℃，T5=170℃，T6=160℃，T7=140℃。
Preferably, in the step (3), the temperature of the film blowing area of the film blowing machine is as follows in sequence: t is t1=140℃，t2=160℃，t3=160℃，t4=150 ℃, the processing temperature of the head is: t is t5=150℃。
Preferably, in step (1), the rotational speed of the high-speed stirrer is 1900N/min.
Preferably, in the step (2), the rotating speed of the low-speed stirrer is 100N/min, and the stirring time of the low-speed stirrer is 4-6 min.
Compared with the prior art, the invention has the following beneficial effects:
(1) compared with a black mulching film, the special green mulching film for peanuts has the advantage that the peanut setting rate of peanuts is improved by 10-15%; compared with a black mulching film, the refractive index of the special green mulching film for peanuts is improved by 5%, the weeding effect of a physical method is greatly improved, and fruit needles are not easily burnt.
(2) The special green mulching film for peanuts not only has the functions of heat preservation, soil moisture preservation and weeding, but also solves the problem that the peanut needles are easy to burn, and improves the survival rate of the peanut needles and the fruit setting rate of the peanuts; and the preparation method is scientific, reasonable, simple and feasible.
(3) The linear polyethylene in the special green mulching film for peanuts is modified by tea polyphenol, and the tea polyphenol is a polyphenol compound which is naturally extracted and has excellent antibacterial property, oxidation resistance and other excellent properties.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A special green mulching film for peanuts is prepared from the following raw materials in parts by weight: 83% of linear polyethylene; 9% of metallocene; 8% of special filler; wherein, the special filler is prepared from the following raw materials in parts by weight: 12% of phthalocyanine blue pigment; 13% of light yellow pigment; 6% of polyethylene wax; 60% of polyethylene; and 9% of titanium dioxide.
The preparation method of the special green mulching film for peanuts comprises the following steps:
(1) preparing a special filler, namely adding phthalocyanine blue pigment and light yellow pigment into a high-speed stirrer with the rotation speed of 1900N/min, stirring for 5min, adding polyethylene wax, polyethylene and titanium dioxide into the high-speed stirrer, and continuously stirring for 5min to obtain a mixed material S1; adding the mixed material S1 into a double-screw extruder for granulation to prepare a special filler; wherein, the processing temperature in the extrusion area of the double-screw extruder is as follows in sequence: t is1=155℃，T2=165℃，T3=180℃，T4=175℃，T5=170℃，T6=160℃，T7=140℃；
(2) Preparing a mixed material, namely adding linear polyethylene, metallocene and the special filler into a low-speed stirrer with the rotating speed of 100N/min, and stirring for 5min to obtain a mixed material S2;
(3) preparing a green mulching film, adding the mixed material S2 into a film blowing machine,extruding the mixed material S2 to a machine head by a film blowing machine, carrying out inflation, and then carrying out upper traction, guide roller and metering rolling to obtain the special green peanut mulching film with the thickness of 0.011 mm; wherein, the processing temperature of inflation film manufacturing machine blown film district does in proper order: t is t1=140℃，t2=160℃，t3=160℃，t4=150 ℃, the processing temperature of the head is: t is t5=150℃。
Example 2
A special green mulching film for peanuts is prepared from the following raw materials in parts by weight: 83% of linear polyethylene; 10% of metallocene; 7% of special filler; wherein, the special filler is prepared from the following raw materials in parts by weight: 15% of phthalocyanine blue pigment; 15% of light yellow pigment; 5% of polyethylene wax; 55% of polyethylene; 10 percent of titanium dioxide.
The preparation method of the special green mulching film for peanuts comprises the following steps:
(1) preparing a special filler, namely adding phthalocyanine blue pigment and light yellow pigment into a high-speed stirrer with the rotation speed of 1900N/min, stirring for 5min, adding polyethylene wax, polyethylene and titanium dioxide into the high-speed stirrer, and continuously stirring for 5min to obtain a mixed material S1; adding the mixed material S1 into a double-screw extruder for granulation to prepare a special filler; wherein the processing temperature of the extrusion zone of the twin-screw extruder is the same as that of example 1;
(2) preparing a mixed material, namely adding linear polyethylene, metallocene and the special filler into a low-speed stirrer with the rotating speed of 100N/min, and stirring for 5min to obtain a mixed material S2;
(3) preparing a green mulching film, namely adding the mixed material S2 into a film blowing machine, extruding the mixed material S2 to a machine head by the film blowing machine, carrying out inflation, and carrying out upper traction, guide roller and metering rolling to obtain the special green mulching film for peanuts with the thickness of 0.011 mm; wherein the processing temperature of the film blowing area of the film blowing machine is the same as that of the embodiment 1.
Example 3
A special green mulching film for peanuts is prepared from the following substances in parts by mass: 85% of linear polyethylene; 9% of metallocene; 6 percent of special filler; wherein, the special filler is prepared from the following raw materials in parts by weight: 17% of phthalocyanine blue pigment; 13% of light yellow pigment; 5% of polyethylene wax; 57% of polyethylene; 8 percent of titanium dioxide.
The preparation method of the special green mulching film for peanuts comprises the following steps:
(1) preparing a special filler, namely adding phthalocyanine blue pigment and light yellow pigment into a high-speed stirrer with the rotation speed of 1900N/min, stirring for 5min, adding polyethylene wax, polyethylene and titanium dioxide into the high-speed stirrer, and continuously stirring for 5min to obtain a mixed material S1; adding the mixed material S1 into a double-screw extruder for granulation to prepare a special filler; wherein the processing temperature of the extrusion zone of the twin-screw extruder is the same as that of example 1;
(2) preparing a mixed material, namely adding linear polyethylene, metallocene and the special filler into a low-speed stirrer with the rotating speed of 100N/min, and stirring for 5min to obtain a mixed material S2;
(3) preparing a green mulching film, namely adding the mixed material S2 into a film blowing machine, extruding the mixed material S2 to a machine head by the film blowing machine, carrying out inflation, and carrying out upper traction, guide roller and metering rolling to obtain the special green mulching film for peanuts with the thickness of 0.011 mm; wherein the processing temperature of the film blowing area of the film blowing machine is the same as that of the embodiment 1.
Example 4
A special green mulching film for peanuts is prepared from the following raw materials in parts by weight: 83% of modified linear polyethylene; 9% of metallocene; 8% of special filler; wherein the modified linear polyethylene is prepared from the following components in percentage by mass of 18: 2 linear polyethylene and tea polyphenol; the special filler is prepared from the following raw materials in parts by weight: 12% of phthalocyanine blue pigment; 13% of light yellow pigment; 6% of polyethylene wax; 60% of polyethylene; and 9% of titanium dioxide.
The preparation method of the special green mulching film for peanuts comprises the following steps:
(1) preparing modified linear polyethylene, respectively weighing the linear polyethylene and tea polyphenol according to the proportion, respectively drying until the water content is less than 1500ppm, adding the tea polyphenol into deionized water to prepare a tea polyphenol solution, mixing the tea polyphenol solution and the linear polyethylene, adding the mixture into a double-screw extruder, extruding at 140 ℃, cooling and granulating to obtain the modified linear polyvinyl chloride;
(2) preparing a special filler, namely adding phthalocyanine blue pigment and light yellow pigment into a high-speed stirrer with the rotation speed of 1900N/min, stirring for 5min, adding polyethylene wax, polyethylene and titanium dioxide into the high-speed stirrer, and continuously stirring for 5min to obtain a mixed material S1; adding the mixed material S1 into a double-screw extruder for granulation to prepare a special filler; wherein the processing temperature of the extrusion zone of the twin-screw extruder is the same as that of example 1;
(3) preparing a mixed material, namely adding linear polyethylene, metallocene and the special filler into a low-speed stirrer with the rotating speed of 100N/min, and stirring for 5min to obtain a mixed material S2;
(4) preparing a green mulching film, namely adding the mixed material S2 into a film blowing machine, extruding the mixed material S2 to a machine head by the film blowing machine, carrying out inflation, and carrying out upper traction, guide roller and metering rolling to obtain the special green mulching film for peanuts with the thickness of 0.011 mm; wherein the processing temperature of the film blowing area of the film blowing machine is the same as that of the embodiment 1.
Example 5
A special green mulching film for peanuts is prepared from the following raw materials in parts by weight: 83% of modified linear polyethylene; 10% of metallocene; 7% of special filler; wherein the modified linear polyethylene is prepared from the following components in percentage by mass of 17: 1.5 linear polyethylene and tea polyphenol; the special filler is prepared from the following raw materials in parts by weight: 15% of phthalocyanine blue pigment; 15% of light yellow pigment; 5% of polyethylene wax; 55% of polyethylene; 10 percent of titanium dioxide.
The preparation method of the special green mulching film for peanuts comprises the following steps:
(1) preparation of modified linear polyethylene, modified linear polyvinyl chloride was prepared with reference to example 4;
(2) preparing a special filler, namely adding phthalocyanine blue pigment and light yellow pigment into a high-speed stirrer with the rotation speed of 1900N/min, stirring for 5min, adding polyethylene wax, polyethylene and titanium dioxide into the high-speed stirrer, and continuously stirring for 5min to obtain a mixed material S1; adding the mixed material S1 into a double-screw extruder for granulation to prepare a special filler; wherein the processing temperature of the extrusion zone of the twin-screw extruder is the same as that of example 1;
(3) preparing a mixed material, namely adding linear polyethylene, metallocene and the special filler into a low-speed stirrer with the rotating speed of 100N/min, and stirring for 5min to obtain a mixed material S2;
(4) preparing a green mulching film, namely adding the mixed material S2 into a film blowing machine, extruding the mixed material S2 to a machine head by the film blowing machine, carrying out inflation, and carrying out upper traction, guide roller and metering rolling to obtain the special green mulching film for peanuts with the thickness of 0.011 mm; wherein the processing temperature of the film blowing area of the film blowing machine is the same as that of the embodiment 1.
Example 6
A special green mulching film for peanuts is prepared from the following substances in parts by mass: 85% of modified linear polyethylene; 9% of metallocene; 6 percent of special filler; wherein the modified linear polyethylene comprises the following components in percentage by mass of 15: 0.5 linear polyethylene and tea polyphenol; the special filler is prepared from the following raw materials in parts by weight: 17% of phthalocyanine blue pigment; 13% of light yellow pigment; 5% of polyethylene wax; 57% of polyethylene; 8 percent of titanium dioxide.
(1) Preparation of modified linear polyethylene, modified linear polyvinyl chloride was prepared with reference to example 4;
(2) preparing a special filler, namely adding phthalocyanine blue pigment and light yellow pigment into a high-speed stirrer with the rotation speed of 1900N/min, stirring for 5min, adding polyethylene wax, polyethylene and titanium dioxide into the high-speed stirrer, and continuously stirring for 5min to obtain a mixed material S1; adding the mixed material S1 into a double-screw extruder for granulation to prepare a special filler; wherein the processing temperature of the extrusion zone of the twin-screw extruder is the same as that of example 1;
(3) preparing a mixed material, namely adding linear polyethylene, metallocene and the special filler into a low-speed stirrer with the rotating speed of 100N/min, and stirring for 5min to obtain a mixed material S2;
(4) preparing a green mulching film, namely adding the mixed material S2 into a film blowing machine, extruding the mixed material S2 to a machine head by the film blowing machine, carrying out inflation, and carrying out upper traction, guide roller and metering rolling to obtain the special green mulching film for peanuts with the thickness of 0.011 mm; wherein the processing temperature of the film blowing area of the film blowing machine is the same as that of the embodiment 1.
The phthalocyanine blue pigment in the embodiment is GBS produced by Shanghai dye Co., Ltd, the conductivity of the phthalocyanine blue pigment is less than or equal to 200 s/cm, the pH of the phthalocyanine blue pigment is 7.5 +/-1.5, and the temperature resistance of the phthalocyanine blue pigment is 280-300 ℃; the pale yellow pigment is 214 produced by basf ag, germany; the polyethylene is 1820 produced by Zhongsha (Tianjin) petrochemical company Limited; the polyethylene wax has molecular weight of 10000, and is produced by Zibo Zhong ShangMao Co; the titanium dioxide is rutile produced by Hebei Weicai pigment company Limited; the linear polyethylene is 7042 produced by Qilu petrochemical company or Daqing petrochemical company; the metallocene was 2018HA from Exxon, USA.
The special green mulching film for peanuts prepared in the embodiments 1-3 and a commercially available black mulching film are applied to the growth cycle of the peanuts at the same time, and the test results of peanut yield, fruit needle survival rate and refractive index are obtained and are shown in table 1.
TABLE 1 test results of the green mulching films prepared in examples 1 to 3 and the commercially available black mulching film
The special green mulching film for peanuts prepared in the embodiments 4-6 and a commercially available black mulching film are applied to the growth cycle of the peanuts at the same time, and test results of peanut yield, fruit needle survival rate and refractive index are obtained and are shown in table 2.
Table 2 test results of the green mulching films and the commercially available black mulching films obtained in examples 4 to 6
Item Example 4 Example 5 Example 6 Commercial black mulching film
Peanut yield (jin/mu) 630 660 625 560
Survival rate of fruit needles 95 96 95 86
Refractive index 87 89 86 80
Compared with the commercially available black mulching film, the green mulching film special for peanuts has the advantages that the acre yield of the peanuts is improved by 10-16%, and the refractive index is improved by 6-12.5%; the green mulching film is beneficial to the growth and development of peanuts and the improvement of the peanut yield.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (9)

1. The special green mulching film for peanuts is characterized by being prepared from the following raw materials in parts by weight:
80-85% of a base material;
8-12% of metallocene;
5-9% of special filler.
2. The special green mulching film for peanuts according to claim 1, wherein the special filler is prepared from the following raw materials in parts by weight: 12-18% of phthalocyanine blue pigment, 12-18% of light yellow pigment, 3-7% of polyethylene wax, 50-60% of polyethylene and 8-12% of titanium dioxide.
3. The special green mulching film for peanuts according to claim 2, wherein the conductivity of the phthalocyanine blue pigment is not more than 200 s/cm, the pH of the phthalocyanine blue pigment is 7.5 +/-1.5, and the temperature resistance of the phthalocyanine blue pigment is 280-300 ℃.
4. The peanut special green mulching film according to claim 2, wherein the substrate is linear polyethylene or modified linear polyethylene; the modified linear polyethylene comprises the following components in percentage by mass (10-20): (0.1-3) linear polyethylene and tea polyphenol.
5. The preparation method of the special green mulching film for peanuts as claimed in any one of claims 1 to 4, which is characterized by comprising the following steps:
(1) preparing a special filler, namely adding phthalocyanine blue pigment and light yellow pigment into a high-speed stirrer, stirring for 4-6 min, adding polyethylene wax, polyethylene and titanium dioxide into the high-speed stirrer, and continuously stirring for 4-6 min to obtain a mixed material S1; adding the mixed material S1 into a double-screw extruder for granulation to prepare a special filler;
(2) preparing a mixed material, namely adding linear polyethylene, metallocene and the special filler into a low-speed stirrer to stir to obtain a mixed material S2;
(3) and preparing a green mulching film, namely adding the mixed material S2 into a film blowing machine, extruding the mixed material S2 to a machine head by the film blowing machine, carrying out inflation, and carrying out upper traction, guide roller and metering rolling to obtain the special green mulching film for peanuts with the thickness of 0.010-0.012 mm.
6. The preparation method of the special green mulching film for peanuts as claimed in claim 5, wherein in the step (1), the temperature of the extrusion zone of the twin-screw extruder is as follows in sequence: t is1=155℃，T2=165℃，T3=180℃，T4=175℃，T5=170℃，T6=160℃，T7=140℃。
7. The preparation method of the special green mulching film for peanuts according to claim 6, wherein in the step (3), the temperature of the film blowing area of the film blowing machine is as follows in sequence: t is t1=140℃，t2=160℃，t3=160℃，t4=150 ℃, the processing temperature of the head is: t is t5=150℃。
8. The preparation method of the special green mulching film for peanuts according to claim 7, wherein in the step (1), the rotating speed of the high-speed stirrer is 1900N/min.
9. The preparation method of the special green mulching film for peanuts according to claim 8, wherein in the step (2), the rotating speed of the low-speed stirrer is 100N/min, and the stirring time of the low-speed stirrer is 4-6 min.
CN201910992118.XA 2019-10-18 2019-10-18 Special green mulching film for peanuts and preparation method thereof Pending CN110643100A (en)

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CN102617916A (en) * 2012-04-06 2012-08-01 广州远华色母厂有限公司 Composition of color high-concentration mono-color master batch for polyolefin
CN104558765A (en) * 2014-12-22 2015-04-29 山东农业大学 Special light-dimming green master batch for ginger mulching film and preparation method of master batch
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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