CN105694198A - Bicolor agricultural soil covering film and preparation method thereof - Google Patents
Bicolor agricultural soil covering film and preparation method thereof Download PDFInfo
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- CN105694198A CN105694198A CN201610223550.9A CN201610223550A CN105694198A CN 105694198 A CN105694198 A CN 105694198A CN 201610223550 A CN201610223550 A CN 201610223550A CN 105694198 A CN105694198 A CN 105694198A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
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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
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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
- 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
- C08J2323/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention discloses a bicolor agricultural soil covering film and a preparation method thereof and relates to the field of an agricultural soil covering film, comprising at least one black mulch film and at least one white mulch film, the white mulch film is effective in increasing surface temperature so as to partially remove weeds, in case of a single-color mulch film, a color combination is changed by changes in an extrusion passage in a nose so that a color combination mode is changed, and existing single-color mulch film is finally imparted two colors and is suitable for various applications, and the film has temperature rising, humidity holding and good weeding effect, is very applicable to agriculture, and is simple to prepare, low in cost and higher in economic benefit.
Description
Technical field
The present invention relates to agricultural ground cover film field, particularly to a kind of double-colored agricultural ground cover film and preparation method thereof。
Background technology
At present, in agricultural, conventional mulch film has two kinds, and one is black mulch film, and another is white mulch film。Black mulch film has good moistening effect；But it makes heating of soil comparatively slow。White mulch film is better due to its printing opacity rate variance, therefore, after it is laid, soil is had and heats effect preferably, but, its printing opacity rate variance is better accordingly, in the process of application, is very easy to the weeds that growth is more bottom it。
Utilizing mulch film to carry out in the process of crop-planting, making mulch film reach better to heat while moistening effect, moreover it is possible to having better herbicidal effect is being a kind of new development trend；But, in the related, no matter it is black mulch film or white mulch film, it all can not have concurrently and heat moisturizing and good herbicidal effect。
For problem above, prior art has also been done a little improvement, such as the patent application patent that China's application number is 201510445003.0, disclosing a kind of double-colored pair of formula degradative plastic film, it includes two additive-based degradative plastic films and is arranged on the additive-based black degradative plastic film between described two additive-based degradative plastic films, mulch film provided by the invention, although having degradable, but the combination of mulch film color is single, uses scope limited, and complicated process of preparation, relatively costly。
And for example China's application number be 201410290332.8 patent of invention disclose a kind of compost degradative plastic film and preparation method thereof, described compost degradative plastic film includes the raw material of following weight: degraded polyester 24 28%, polyvinyl alcohol 14 19%, polyhydroxyalkanoate 22 28%, poly butylene succinate 16 27%, light stabilizer 2 4%, black master batch 7 9%。Degradable mulch provided by the invention, degradation speed is fast, and completely, intensity is high。Although the defects such as the bubble that mulch film outward appearance of the present invention uses without impact, speckle, fold, impurity, pin hole, but do not have concurrently and heat moisturizing and good herbicidal effect。
Summary of the invention
The technical problem to be solved is to provide a kind of double-colored agricultural ground cover film and preparation method thereof, do not have concurrently with the mulch film solving to cause in prior art and heat moisturizing and good herbicidal effect, and complicated process of preparation, the above-mentioned multinomial defect such as relatively costly。
For achieving the above object, the present invention provides following technical scheme: a kind of double-colored agricultural ground cover film, forms chequered with black and white double-colored structure film body including at least one black mulch film and at least one white mulch film, described black mulch film and white mulch film。
Preferably, including two white mulch films and a black mulch film, described black mulch film is arranged between two white mulch films, is connected with two white mulch films。
Preferably, including two black mulch films and a white mulch film, described white mulch film is arranged between two black mulch films, is connected with two black mulch films。
Preferably, chequered with black and white double-colored structure film body is formed including two black mulch films and three white mulch films, described black mulch film and white mulch film。
Preferably, chequered with black and white double-colored structure film body is formed including two white mulch films and three black mulch films, described black mulch film and white mulch film。
Preferably, the material component of described black mulch film, according to parts by weight meter, including degradation master batch 20-30 part, linear low density polyethylene (LLDPE) 40-50 part, black agglomerate 5-10 part, flux 1-3 part；The material component of described white mulch film, according to parts by weight meter, including degradation master batch 20-30 part, linear low density polyethylene (LLDPE) 40-50 part, flux 1-3 part, light stabilizer 0.5-1 part, calcium carbonate master batch 1-5 part。
Preferably, the raw material components of described degradation master batch, according to parts by weight meter, including corn starch or polylactic acid 30-40 part, Plant fiber's 10-20 part, linear low density polyethylene (LLDPE) 10-20 part, carbon dioxide polymer 5-10 part, plasticizer 1-5 part。
Preferably, the material component of described black mulch film, according to parts by weight meter, including anti-aging mother material 5-10 part, linear low density polyethylene (LLDPE) 80-90 part, black agglomerate 5-10 part；The material component of described white mulch film, according to parts by weight meter, including anti-aging mother material 5-10 part, linear low density polyethylene (LLDPE) 80-90 part, Low Density Polyethylene 5-10 part, flux 1-3 part。
Preferably, the material component of described black mulch film, according to parts by weight meter, including linear low density polyethylene (LLDPE) 90-95 part, black agglomerate is 5-10 part；The material component of described white mulch film, according to parts by weight meter, including linear low density polyethylene (LLDPE) 100 parts。
The preparation method of a kind of double-colored agricultural ground cover film, comprises the following steps:
(1) by the raw material of white mulch film according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain white plastic melt；
(2) by the raw material of black mulch film according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain black plastic melt；
(3) white plastic melt and black plastic melt are transported in blow moulding die molding through different runners, obtain film embryo；
(4) mold base is sequentially carried out blowing, stretching, and then rolling obtains finished product。
Above technical scheme is adopted to provide the benefit that: the double-colored agricultural ground cover film of the present invention, white mulch film can well improve surface temperature makes crop reach the effect of higher accumulated temperature within the identical time, black mulch film well solves the burn problem in white mulch film and can play the herbicidal effect of part, under the state of existing monochromatic mulch film, head internal extrusion passage change is used to change color combination, it is made to change the mode of color combination, it is finally reached to change over existing monochromatic mulch film and double-colored reaches applicable various situation, make it have concurrently and heat moisturizing and good herbicidal effect, can extraordinary be applied in agricultural, and preparation technology is simple, with low cost, increase economic efficiency。
Accompanying drawing explanation
Fig. 1 is the embodiments of the invention 1-4 double-colored agricultural ground cover film schematic diagram provided；
Fig. 2 is the embodiments of the invention 5-8 double-colored agricultural ground cover film schematic diagram provided；
Fig. 3 is the embodiments of the invention 9-12 double-colored agricultural ground cover film schematic diagram provided；
Fig. 4 is the embodiments of the invention 13-16 double-colored agricultural ground cover film schematic diagram provided。
Wherein, 101-black mulch film, 102-white mulch film。
Detailed description of the invention
The preferred embodiment of the present invention is described in detail below in conjunction with accompanying drawing。
Embodiment 1:
The specific embodiment of the present invention is shown: a kind of double-colored agricultural ground cover film, including two white mulch films 102 and a black mulch film 101, described black mulch film 101 is arranged between two white mulch films 102, is connected with two white mulch films 102 in conjunction with Fig. 1。
In the present embodiment, the material component of described black mulch film 101, according to parts by weight meter, including degradation master batch 20 parts, linear low density polyethylene (LLDPE) 40 parts, black agglomerate 5 parts, flux 1 part；The material component of described white mulch film 102, according to parts by weight meter, including degradation master batch 20 parts, linear low density polyethylene (LLDPE) 40 parts, flux 1 part, light stabilizer 0.5 part, calcium carbonate master batch 1 part, the raw material components of described degradation master batch, according to parts by weight meter, including corn starch 30 parts, Plant fiber 10 parts, linear low density polyethylene (LLDPE) 10 parts, carbon dioxide polymer 5 parts, plasticizer 1 part。
The preparation method of a kind of double-colored agricultural ground cover film, comprises the following steps:
(1) by the raw material of white mulch film 102 according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain white plastic melt；
(2) by the raw material of black mulch film 101 according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain black plastic melt；
(3) white plastic melt and black plastic melt are transported in blow moulding die molding through different runners, obtain film embryo；
(4) mold base is sequentially carried out blowing, stretching, and then rolling obtains finished product。
Embodiment 2:
In conjunction with Fig. 1, all the other are identical with embodiment 1, are different in that: in the present embodiment, the raw material components of described degradation master batch, according to parts by weight meter, including polylactic acid 30 parts, Plant fiber 10 parts, linear low density polyethylene (LLDPE) 10 parts, carbon dioxide polymer 5 parts, plasticizer 1 part。
Embodiment 3:
In conjunction with Fig. 1, all the other are identical with embodiment 1, are different in that: in the present embodiment, the material component of described black mulch film 101, according to parts by weight meter, including anti-aging mother material 5 parts, linear low density polyethylene (LLDPE) 90 parts, black agglomerate 5 parts；The material component of described white mulch film 102, according to parts by weight meter, including anti-aging mother material 5 parts, linear low density polyethylene (LLDPE) 85 parts, Low Density Polyethylene 7 parts, flux 2 parts。
Embodiment 4:
In conjunction with Fig. 1, all the other are identical with embodiment 1, are different in that: in the present embodiment, the material component of described black mulch film 101, and according to parts by weight meter, including linear low density polyethylene (LLDPE) 90 parts, black agglomerate is 10 parts；The material component of described white mulch film 102, according to parts by weight meter, including linear low density polyethylene (LLDPE) 100 parts。
The advantage of this kind of ground cover film that embodiment 1-4 provides is: middle for black mulch film 101, the dew globule will not be formed below black mulch film 101, do not have magnifier effect, burn or other irreversible consequence from without the crop below film and garden hose are formed；The white mulch film 102 on both sides can well raising surface temperature faster, thus reaching the effect that accumulated temperature increases。
Embodiment 5:
Showing the specific embodiment of the present invention in conjunction with Fig. 2: a kind of double-colored agricultural ground cover film, including the white mulch film 102 of two black mulch films 101 and, described white mulch film 102 is arranged between two black mulch films 101, is connected with two black mulch films 101。
In the present embodiment, the material component of described black mulch film 101, according to parts by weight meter, including degradation master batch 30 parts, linear low density polyethylene (LLDPE) 50 parts, black agglomerate 10 parts, flux 3 parts；The material component of described white mulch film 102, according to parts by weight meter, including degradation master batch 30 parts, linear low density polyethylene (LLDPE) 50 parts, flux 3 parts, light stabilizer 1 part, calcium carbonate master batch 5 parts, the raw material components of described degradation master batch, according to parts by weight meter, including corn starch 40 parts, Plant fiber 20 parts, linear low density polyethylene (LLDPE) 20 parts, carbon dioxide polymer 10 parts, plasticizer 5 parts。
The preparation method of a kind of double-colored agricultural ground cover film, comprises the following steps:
(1) by the raw material of white mulch film 102 according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain white plastic melt；
(2) by the raw material of black mulch film 101 according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain black plastic melt；
(3) white plastic melt and black plastic melt are transported in blow moulding die molding through different runners, obtain film embryo；
(4) mold base is sequentially carried out blowing, stretching, and then rolling obtains finished product。
Embodiment 6:
In conjunction with Fig. 2, all the other are identical with embodiment 5, are different in that: in the present embodiment, the raw material components of described degradation master batch, according to parts by weight meter, including polylactic acid 40 parts, Plant fiber 20 parts, linear low density polyethylene (LLDPE) 20 parts, carbon dioxide polymer 10 parts, plasticizer 5 parts。
Embodiment 7:
In conjunction with Fig. 2, all the other are identical with embodiment 5, are different in that: in the present embodiment, the material component of described black mulch film 101, according to parts by weight meter, including anti-aging mother material 7.5 parts, linear low density polyethylene (LLDPE) 85 parts, black agglomerate 7.5 parts；The material component of described white mulch film 102, according to parts by weight meter, including anti-aging mother material 7.5 parts, linear low density polyethylene (LLDPE) 85 parts, Low Density Polyethylene 7.5 parts, flux 2 parts。
Embodiment 8:
In conjunction with Fig. 2, all the other are identical with embodiment 5, are different in that: in the present embodiment, the material component of described black mulch film 101, and according to parts by weight meter, including linear low density polyethylene (LLDPE) 92.5 parts, black agglomerate is 7.5 parts；The material component of described white mulch film 102, according to parts by weight meter, including linear low density polyethylene (LLDPE) 100 parts。
If not laying drip irrigation zone, the advantage of the ground cover film that embodiment 5-8 provides also is readily apparent from: middle for white mulch film 102, it is possible to the growth course seeing seedling that will be apparent from, it is also possible to buckle film makes crop grow normally timely；The black mulch film 101 on both sides, because crop will not carry out photosynthesis under the effect without sunlight, also would not grow, it is possible to well play the effect of weeding, naturally it is also possible to adds herbicide among black agglomerate, plays the effect of weeding。
Embodiment 9:
Show the specific embodiment of the present invention in conjunction with Fig. 3: a kind of double-colored agricultural ground cover film, form chequered with black and white double-colored structure film body including the white mulch film 102 of two black mulch films 101 and three, described black mulch film 101 and white mulch film 102。
In the present embodiment, the material component of described black mulch film 101, according to parts by weight meter, including degradation master batch 25 parts, linear low density polyethylene (LLDPE) 45 parts, black agglomerate 7.5 parts, flux 2 parts；The material component of described white mulch film 102, according to parts by weight meter, including degradation master batch 25 parts, linear low density polyethylene (LLDPE) 45 parts, flux 2 parts, light stabilizer 0.75 part, calcium carbonate master batch 3 parts, the raw material components of described degradation master batch, according to parts by weight meter, including corn starch 35 parts, Plant fiber 15 parts, linear low density polyethylene (LLDPE) 15 parts, carbon dioxide polymer 7.5 parts, plasticizer 3 parts。
The preparation method of a kind of double-colored agricultural ground cover film, comprises the following steps:
(1) by the raw material of white mulch film 102 according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain white plastic melt；
(2) by the raw material of black mulch film 101 according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain black plastic melt；
(3) white plastic melt and black plastic melt are transported in blow moulding die molding through different runners, obtain film embryo；
(4) mold base is sequentially carried out blowing, stretching, and then rolling obtains finished product。
Embodiment 10:
In conjunction with Fig. 3, all the other are identical with embodiment 9, are different in that: in the present embodiment, the raw material components of described degradation master batch, according to parts by weight meter, including polylactic acid 35 parts, Plant fiber 15 parts, linear low density polyethylene (LLDPE) 15 parts, carbon dioxide polymer 7.5 parts, plasticizer 3 parts。
Embodiment 11:
In conjunction with Fig. 3, all the other are identical with embodiment 9, are different in that: in the present embodiment, the material component of described black mulch film 101, according to parts by weight meter, including anti-aging mother material 10 parts, linear low density polyethylene (LLDPE) 80 parts, black agglomerate 10 parts；The material component of described white mulch film 102, according to parts by weight meter, including anti-aging mother material 10 parts, linear low density polyethylene (LLDPE) 80 parts, Low Density Polyethylene 7 parts, flux 3 parts。
Embodiment 12:
In conjunction with Fig. 3, all the other are identical with embodiment 9, are different in that: in the present embodiment, the material component of described black mulch film 101, and according to parts by weight meter, including linear low density polyethylene (LLDPE) 95 parts, black agglomerate is 5 parts；The material component of described white mulch film 102, according to parts by weight meter, including linear low density polyethylene (LLDPE) 100 parts。
The covering with plastic film that embodiment 9-12 provides; when ground cover film covers two row crops; use when needing to lay two drip irrigation zones or garden hose; the effect of ground cover film that the effect of this kind of ground cover film is similar in embodiment 1-4 to provide; black cover crop and flexible pipe, white plays the effect improving ground temperature。
Embodiment 13:
Show the specific embodiment of the present invention in conjunction with Fig. 4: a kind of double-colored agricultural ground cover film, form chequered with black and white double-colored structure film body including two white mulch films 102 and three black mulch films 101, described black mulch film 101 and white mulch film 102。
In the present embodiment, the material component of described black mulch film 101, according to parts by weight meter, including degradation master batch 22 parts, linear low density polyethylene (LLDPE) 46 parts, black agglomerate 8 parts, flux 2 parts；The material component of described white mulch film 102, according to parts by weight meter, including degradation master batch 22 parts, linear low density polyethylene (LLDPE) 45 parts, flux 2 parts, light stabilizer 0.6 part, calcium carbonate master batch 2 parts, the raw material components of described degradation master batch, according to parts by weight meter, including corn starch 32 parts, Plant fiber 15 parts, linear low density polyethylene (LLDPE) 17 parts, carbon dioxide polymer 7 parts, plasticizer 2 parts。
The preparation method of a kind of double-colored agricultural ground cover film, comprises the following steps:
(1) by the raw material of white mulch film 102 according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain white plastic melt；
(2) by the raw material of black mulch film 101 according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain black plastic melt；
(3) white plastic melt and black plastic melt are transported in blow moulding die molding through different runners, obtain film embryo；
(4) mold base is sequentially carried out blowing, stretching, and then rolling obtains finished product。
Embodiment 14:
In conjunction with Fig. 4, all the other are identical with embodiment 13, are different in that: in the present embodiment, the raw material components of described degradation master batch, according to parts by weight meter, including polylactic acid 32 parts, Plant fiber 15 parts, linear low density polyethylene (LLDPE) 17 parts, carbon dioxide polymer 7 parts, plasticizer 2 parts。
Embodiment 15:
In conjunction with Fig. 4, all the other are identical with embodiment 13, are different in that: in the present embodiment, the material component of described black mulch film 101, according to parts by weight meter, including anti-aging mother material 10 parts, linear low density polyethylene (LLDPE) 80 parts, black agglomerate 10 parts；The material component of described white mulch film 102, according to parts by weight meter, including anti-aging mother material 10 parts, linear low density polyethylene (LLDPE) 80 parts, Low Density Polyethylene 9 parts, flux 1 part。
Embodiment 16:
In conjunction with Fig. 4, all the other are identical with embodiment 13, are different in that: in the present embodiment, the material component of described black mulch film 101, and according to parts by weight meter, including linear low density polyethylene (LLDPE) 92.5 parts, black agglomerate is 7.5 parts；The material component of described white mulch film 102, according to parts by weight meter, including linear low density polyethylene (LLDPE) 100 parts。
The covering with plastic film that described example 13-16 provides, when ground cover film covers two row crops, when need not lay drip irrigation zone, black mulch film 101 is conducive to weeding, white mulch film 102 facilitates look at growth of seedling, can buckle film timely, the effect of the covering with ground sheeting film that the effect of this kind of ground cover film is similar in embodiment 5-8 to provide。
It is to be noted that, the formation of the color of mulch film in the present invention, change extrusion ratio except through head inside or change outside the mode extruding passage, the color combination of mulch film can also be changed by the mode sprayed after mulch film blow molding, the material wherein sprayed can be general color coating, it is also possible to be the degradation paint of accelerated degradation。The black mulch film 101 of indication of the present invention and white mulch film 102, it is not actually and singly refers to black and white, black represents the color of various dark system, and white represents the color of various light color system, but is mainly opaque black mulch film 101 and transparent whites mulch film 102 is combined as master。
Based on above-mentioned, the double-colored agricultural ground cover film of one provided by the invention, head internal extrusion passage change is used to change color combination, make it change the mode of color combination, be finally reached to change over existing monochromatic mulch film and double-colored reach applicable various situation so that it is have concurrently and heat moisturizing and herbicidal effect preferably, can extraordinary be applied in agricultural, and preparation technology is simple, with low cost, increase economic efficiency。
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations。All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention。
Claims (10)
1. a double-colored agricultural ground cover film, it is characterised in that: include at least one black mulch film and at least one white mulch film, described black mulch film and white mulch film form chequered with black and white double-colored structure film body。
2. double-colored agricultural ground cover film according to claim 1, it is characterised in that: including two white mulch films and a black mulch film, described black mulch film is arranged between two white mulch films, is connected with two white mulch films。
3. double-colored agricultural ground cover film according to claim 1, it is characterised in that: including two black mulch films and a white mulch film, described white mulch film is arranged between two black mulch films, is connected with two black mulch films。
4. double-colored agricultural ground cover film according to claim 1, it is characterised in that: include two black mulch films and three white mulch films, described black mulch film and white mulch film and form chequered with black and white double-colored structure film body。
5. double-colored agricultural ground cover film according to claim 1, it is characterised in that: include two white mulch films and three black mulch films, described black mulch film and white mulch film and form chequered with black and white double-colored structure film body。
6. the double-colored agricultural ground cover film according to claim 1-5 any one, it is characterized in that: the material component of described black mulch film, according to parts by weight meter, including degradation master batch 20-30 part, linear low density polyethylene (LLDPE) 40-50 part, black agglomerate 5-10 part, flux 1-3 part；The material component of described white mulch film, according to parts by weight meter, including degradation master batch 20-30 part, linear low density polyethylene (LLDPE) 40-50 part, flux 1-3 part, light stabilizer 0.5-1 part, calcium carbonate master batch 1-5 part。
7. double-colored agricultural ground cover film according to claim 6, it is characterized in that: the raw material components of described degradation master batch, according to parts by weight meter, including corn starch or polylactic acid 30-40 part, Plant fiber's 10-20 part, linear low density polyethylene (LLDPE) 10-20 part, carbon dioxide polymer 5-10 part, plasticizer 1-5 part。
8. the double-colored agricultural ground cover film according to claim 1-5 any one, it is characterized in that: the material component of described black mulch film, according to parts by weight meter, including anti-aging mother material 5-10 part, linear low density polyethylene (LLDPE) 80-90 part, black agglomerate 5-10 part；The material component of described white mulch film, according to parts by weight meter, including anti-aging mother material 5-10 part, linear low density polyethylene (LLDPE) 80-90 part, Low Density Polyethylene 5-10 part, flux 1-3 part。
9. the double-colored agricultural ground cover film according to claim 1-5 any one, it is characterised in that: the material component of described black mulch film, according to parts by weight meter, including linear low density polyethylene (LLDPE) 90-95 part, black agglomerate is 5-10 part；The material component of described white mulch film, according to parts by weight meter, including linear low density polyethylene (LLDPE) 100 parts。
10. the preparation method of a double-colored agricultural ground cover film as claimed in claim 1, it is characterised in that: comprise the following steps:
(1) by the raw material of white mulch film according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain white plastic melt；
(2) by the raw material of black mulch film according to set proportioning mixing, pass sequentially through heating, plasticizing and extrusion operation, obtain black plastic melt；
(3) white plastic melt and black plastic melt are transported in blow moulding die molding through different runners, obtain film embryo；
(4) mold base is sequentially carried out blowing, stretching, and then rolling obtains finished product。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223550.9A CN105694198A (en) | 2016-04-12 | 2016-04-12 | Bicolor agricultural soil covering film and preparation method thereof |
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Cited By (9)
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| CN105949736A (en) * | 2016-06-24 | 2016-09-21 | 大禹节水（天津）有限公司 | Double-wing type scalding-resistant drip irrigation tape |
| CN106313824A (en) * | 2016-10-20 | 2017-01-11 | 莱芜市猛牛塑料机械有限公司 | Silver and black composite film and white film spaced mulch |
| CN107415395A (en) * | 2017-09-14 | 2017-12-01 | 张宾 | A kind of polychrome mulch film and preparation method thereof |
| CN107459700A (en) * | 2017-09-20 | 2017-12-12 | 定西宏大农业科技有限公司 | A kind of preparation method of mulch film |
| CN109644754A (en) * | 2019-02-12 | 2019-04-19 | 山东天壮环保科技有限公司 | The maize film-covered cultivation technique in Eastern Inner Mongolia degradable ecology color matching mulch |
| CN111955248A (en) * | 2020-08-11 | 2020-11-20 | 甘肃福雨塑业有限责任公司 | Polyethylene three-layer composite black-white interphase color matching mulching film and preparation method thereof |
| FR3098682A1 (en) * | 2019-07-18 | 2021-01-22 | Sarl Europlastic | Protective tarpaulin for plant cultivation |
| CN112586246A (en) * | 2020-11-06 | 2021-04-02 | 陕西富隆新塑材有限公司 | Fully-recycled-fully-degradable composite mulching film and preparation method thereof |
| CN113229011A (en) * | 2021-06-03 | 2021-08-10 | 辽宁省农业科学院 | High-strength double-color environment-friendly mulching film and processing method thereof |
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| CN203960103U (en) * | 2014-06-25 | 2014-11-26 | 河北奥柯柏环保科技有限公司 | The double-colored degradable mulch of a kind of black and white |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949736A (en) * | 2016-06-24 | 2016-09-21 | 大禹节水（天津）有限公司 | Double-wing type scalding-resistant drip irrigation tape |
| CN106313824A (en) * | 2016-10-20 | 2017-01-11 | 莱芜市猛牛塑料机械有限公司 | Silver and black composite film and white film spaced mulch |
| CN106313824B (en) * | 2016-10-20 | 2018-07-17 | 莱芜市猛牛塑料机械有限公司 | The black composite membrane of silver is alternatively arranged mulch with white films |
| CN107415395A (en) * | 2017-09-14 | 2017-12-01 | 张宾 | A kind of polychrome mulch film and preparation method thereof |
| CN107459700A (en) * | 2017-09-20 | 2017-12-12 | 定西宏大农业科技有限公司 | A kind of preparation method of mulch film |
| CN109644754A (en) * | 2019-02-12 | 2019-04-19 | 山东天壮环保科技有限公司 | The maize film-covered cultivation technique in Eastern Inner Mongolia degradable ecology color matching mulch |
| FR3098682A1 (en) * | 2019-07-18 | 2021-01-22 | Sarl Europlastic | Protective tarpaulin for plant cultivation |
| CN111955248A (en) * | 2020-08-11 | 2020-11-20 | 甘肃福雨塑业有限责任公司 | Polyethylene three-layer composite black-white interphase color matching mulching film and preparation method thereof |
| CN111955248B (en) * | 2020-08-11 | 2022-05-03 | 甘肃福雨塑业有限责任公司 | Polyethylene three-layer composite black-white interphase color matching mulching film and preparation method thereof |
| CN112586246A (en) * | 2020-11-06 | 2021-04-02 | 陕西富隆新塑材有限公司 | Fully-recycled-fully-degradable composite mulching film and preparation method thereof |
| CN113229011A (en) * | 2021-06-03 | 2021-08-10 | 辽宁省农业科学院 | High-strength double-color environment-friendly mulching film and processing method thereof |
| CN113229011B (en) * | 2021-06-03 | 2023-01-06 | 辽宁省农业科学院 | High-strength double-color environment-friendly mulching film and processing method thereof |
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