CN104341672B - Special weeding film for fruit trees and preparation process of special weeding film - Google Patents
Special weeding film for fruit trees and preparation process of special weeding film Download PDFInfo
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- CN104341672B CN104341672B CN201410534523.4A CN201410534523A CN104341672B CN 104341672 B CN104341672 B CN 104341672B CN 201410534523 A CN201410534523 A CN 201410534523A CN 104341672 B CN104341672 B CN 104341672B
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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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- 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
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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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- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/223—Packed additives
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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
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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Abstract
The invention discloses a special weeding film for fruit trees and a preparation process of the special weeding film. The special weeding film is prepared from the following components in percentage by mass: 65-80% of linear low-density polyethylene, 4-10% of low-density polyethylene, 6-10% of anti-aging masterbatch and 10-15% of light-blocking black masterbatch, wherein the anti-aging masterbatch is formed by reasonably matching, mixing and granulating according to demands. According to the preparation process disclosed by the invention, a conventional ground film blowing unit is adopted, PLC terminal software is adopted for inputting signals, particles which are well matched and mixed are put into a feed inlet of an extruder by a mechanical hand, and screw conveying, homogenization, compression, filtration, molding, traction, air ring cooling, coiling and packaging are performed; and the compression ratio of a mold head is controlled at 4.0-4.5 in molding, and the blow-up ratio of the film is controlled at 3.0-3.5. Compared with general molding requirements, the mechanical strength of the film is improved in comparison with that of the ordinary weeding ground film. According to the preparation process disclosed by the invention, the problems that a small amount of additives is added in the traditional process and the mixing with main raw materials is non-uniform to cause that the product quality is affected are solved, the stability of the product quality is ensured, the frequency of adding the materials is reduced, the time is saved and the product performances are further improved.
Description
Technical field
The present invention relates to a kind of agricultural mulching, and in particular to the special Herbicide film of a planting fruit-trees and its preparation technology.
Background technology
China agricultural land face plastic covering thin film is in late 1970s from Japan's introduction.With China's agricultural technology
Continuous development, agricultural land face plastic covering thin film referred to as " mulch film " is using having obtained unprecedented development.At present China into
Big country is consumed for the whole world agricultural " mulch film " first.But a large amount of due to plastic film use the " white pollution for bringing therewith
Problem " is also increasingly highlighted.Substantial amounts of manpower and materials are consumed for this country to be renovated, advocate waste reclaimation, but
It is to waste time and energy.At present China's plastic industry generally adopts existing plastic film standard GB/T 13735-92.The standard is in system
Because all many factors such as China's agricultural economy condition are limited at the beginning of fixed, it is stipulated that " mulch film " minimum thickness calibration is 0.008mm；
It is -120 days 50 days to recommend to cover use time.But partly plastic manufacturing enterprise is in order to reduce overlay film cost, modeling is reduced again and again
Material mulch film inherent quality and thickness, cause many plastic films to occur as soon as season cracking phenomenon using less than two months.Treat one batch of work
Plastic film is incoherent already, all over the sky all over the fields when thing maturation, and efficient recovery cannot be accomplished at all.Use for reference the U.S., Europe, day
This grade agricultural achievement by advanced countries, they specify that mulch films produce minimum thickness all in more than 0.014mm, and require can after use
Whole is uncovered, and is easy to reclaim.At present common ground film is mainly for keeping moisture, and single function, people are usual in order to improve yield
Not only need covering with plastic film but also to apply chemical fertilizer, spray insecticide etc. to reach the purpose of volume increase, although yield can be improved, but
Cause potential pollution to ecological environment for a long time, with the improvement of technology, Herbicide film is occurred in that in the recent period, although this plastic film for agricultural use
There is weeding function but complex technical process for crops such as Caulis Sacchari sinensis, Semen Maydiss, flowers, plus man-hour requirement adds various ingredients,
And need to add various auxiliary agents to can be only achieved national standard, and the amount of various auxiliary agents is general all seldom, raw material type it is more and its
In amount of auxiliary again seldom, so plus man-hour there is a problem of that various ingredients are difficult mix homogeneously, affect ground film quality；And it is former
Material component is more, plus man-hour need to respectively weigh, sequentially add, and waste time and energy, and cumbersome, efficiency is low.
The content of the invention
The present invention is in order to solve existing production Herbicide film complex process, cumbersome, plus man-hour various ingredients are difficult to mix
It is difficult to ensure that the poor problem of quality, properties of product, there is provided the special Herbicide film of a planting fruit-trees and its preparation technology.
In order to solve the above problems, the present invention is adopted the following technical scheme that：
The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene 65-80%；
Low Density Polyethylene 4-10%；Ageing-resistant master batch 6-10%；Light blocking black agglomerate 10-15%；Described ageing-resistant master batch is by following heavy
The raw material mixing granulation of amount proportioning is formed：Hindered amine as light stabilizer 7-13 parts, composite antioxidant 3.5-6.5 parts, benzotriazole
UV absorbent 4.5-6.5 part.
Preferably, the special Herbicide film of a planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
74%, Low Density Polyethylene 6%, ageing-resistant master batch 8%, light blocking black agglomerate 12%；Described ageing-resistant master batch is matched somebody with somebody by following weight
The raw material mixing granulation of ratio is formed：Hindered amine as light stabilizer 7-13 parts, composite antioxidant 3.5-6.5 parts, benzotriazole are ultraviolet
Light absorbers 4.5-6.5 part.
The present invention optimum proportioning be：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linearly
Low Density Polyethylene 74%, Low Density Polyethylene 6%, ageing-resistant master batch 8%, light blocking black agglomerate 12%；Wherein described is ageing-resistant
Master batch is formed by the raw material mixing granulation of following weight proportion：10 parts of hindered amine as light stabilizer, 5 parts of composite antioxidant, benzo three
5.5 parts of azole UV absorbent.
Above-mentioned linear low density polyethylene refers to linear low density polyethylene resin for eutectic；Low Density Polyethylene is eutectic
Refer to hp-ldpe resin.
The preparation technology of the special Herbicide film of fruit tree of the present invention, specifically includes following steps：
A) preparation of raw material：Hindered amine as light stabilizer, composite antioxidant, Benzotriazole Ultraviolet Stabilizer are pressed first
Weight proportion weigh each raw material, mixing, pelletize and prepare described ageing-resistant master batch；
B) mulch film production：It is initially charged linear low density polyethylene resin in blender by mass percentage, is subsequently adding
Ldpe resin, light blocking black agglomerate and described ageing-resistant master batch are added, stirring is fully mixed；Using routinely
Film blown film unit, is put into machine barrel charging aperture, in the 1st 165-175 DEG C of temperature section, the 2nd temperature section by above-mentioned with mixed raw material
185-195 DEG C of position, the 3rd 205-215 DEG C of temperature section, the 4th 195-205 DEG C of temperature section, the 5th 205-215 DEG C of temperature section, the
At 6 185-195 DEG C of temperature sections, using multiple flow passages blow molding, the molding die of thin film unit adopts central feeding for annulus
Formula mouth mold, port mould diameter is that 200-300 heads adopt internal coiling composite molding, runner 8-10 runners hole spiral to change Flow of Goods and Materials
Direction, in molding by die head compression ratio be 4.0-4.5；Thin film blow-up ratio is 3.0-3.5 blow moldings, then traction, Jing circulations
Air cooling, batch, pack.
The temperature control system instrument of described extruder carries out temperature control, in the control that controller is input into using PLC programming Controls
Temperature processed, the control temperature is divided into 6 temperature sections：Described 1-6 temperature sections are followed successively by the area's homogenization temperature of barrel 1, the plasticizing of 2nd area
Temperature, 2 area's compression temperatures, 4 area's compression temperatures, flange filtration temperature and die head temperature；Preferably, described extruder the 1st is warm
170 DEG C of section of degree, 190 DEG C of the 2nd temperature section, 210 DEG C of the 3rd temperature section, 200 DEG C of the 4th temperature section, the 5th temperature section 210
DEG C, 190 DEG C of the 6th temperature section.
The performance test of the present invention：By the mulch film of the present invention compared with the mechanical property and weeding rate of common weed removal mulch film,
As a result it is as shown in table 1；
The comparison of the mulch film of the present invention of table 1. and common weed removal mulch film mechanical property
The present invention adopts multiple flow passages extrusion technology, and thin film unit SJ-65 molding dies are annulus using central feeding
Formula mouth mold molding mode；Port mould diameter 200-300 heads adopt internal coiling composite molding, runner 8-10 runners hole spiral to change thing
Direction of flow, the product pulling force of molding strengthens, and can reduce thin film limit deviation.The control of die head compression ratio is existed in molding
4.0-4.5 and the control of thin film blow-up ratio improve the machinery of thin film in 3.0-3.5 compared with the thin film that general forming requirements are produced
Intensity.The mulch film of present invention longitudinal elongation at break rate and transverse breakage percentage elongation compared with the mechanical property of common weed removal mulch film is equal
Improve about 2 times, the raising 37% compared with common Herbicide film of longitudinal right-angle tearing load, horizontal right-angle tearing load with commonly remove
Careless film compares raising 20%, and weeding rate reaches 99%.
The present invention has compared with prior art advantages below：
1. the present invention is first only with auxiliary agent hindered amine as light stabilizer, composite antioxidant, benzotriazole purple line absorption
Three kinds of material rational proportion mixing granulations of agent are into the special ageing-resistant master batch of fruit tree；Ageing-resistant master batch, Jing examinations are directly added into during batch mixing
Test compared with the single quality of the various amount of auxiliary added originally, quality expand 10 times or so, so as to ensure ageing-resistant master batch with
Other main materials can be sufficiently mixed, and then ensure that each auxiliary agent in ageing-resistant master batch is equal with being sufficiently mixed for main material
It is even, solve and add in traditional handicraft the few problem for mixing uneven with main material, affecting product quality of amount of auxiliary, the present invention makes
The stability of product quality is guaranteed, and reduces the number of times for adding materials, time-consuming, improve production efficiency, while solving
Existing ageing-resistant master batch need to add main material to prepare, and not only composition is various but also the numerous and diverse problem of operation；The ground of the present invention
Film dynamic performance meets national standard, of the invention durable compared with common weed removal mulch film.
2. the present invention existing plastic film process technology basis on, with reference to recent domestic plastic processing additives
Fast development, from product obtained in the homemade ageing-resistant master batch of autogamy is ageing-resistant in drought-resistant agriculture plantation 18 can be continuously used
More than individual month, and be easy to reclaim, secondary operations utilization can be also carried out, artificial plastic film mulch cost is greatly reduced, reduce environmental pollution, section
About resource.
3. the light blocking black masterbatch that nano carbon black and polyethylene are constituted is added with the special Herbicide film of fruit tree that prepared by the present invention
Grain, light blocking black agglomerate and ageing-resistant master batch and other main material rational proportions are reached with fertilizer conservation, moisturizing, volume increase, weeding
It is specific as follows Deng the purpose of several functions：Fertilizer-preserving ability is strong：With the soil of covering with ground sheeting of the present invention, because soil temperature change is pacified
Surely, organic matter is also located in normal samsara static state.Water holding capacity is good：Factually test degree, underground after covering with ground sheeting of the present invention
5 centimeters of water content, and though after covering two days or cover after 35 days, 4-10 parts all high than hyaline membrane.Transfer menu to produce：
Mulch film light transmittance of the present invention is low, and radiant heat through less, so as to make the soil temperature diurnal variation amplitude of capped soil little, transfer by soil temperature
Few, particularly some root systems require the low crop of soil temperature:Such as Fructus Lycopersici esculenti, four when bean, Semen vignae sinensiss, late-maturing Citrullus vulgariss, cover the present invention
No matter early stage per unit area yield or total per unit area yield can be than covering the high of hyaline membrane after mulch film.Prevent weed growth：Quote hyaline membrane
Crop smothering is a serious phenomenon during covering, and after covering with ground sheeting of the present invention, ground weeds are difficult to develop because of illumination premise deficiency,
As shown in table 1, weeding rate reaches 99% compared with common weed removal mulch film, and especially nursery stock using effect more preferably not only acts as insulation, protects
Fertilizer, soil moisture conservation, heat, herbicide effect and also have functions that promote seedling growth.
4. the mulch film specification of present invention production is width 1200mm, and thickness 0.008-0.01mm meets GB.The present invention's
Product adopts 1.45 meters of screw thread paper tubes of high intensity, and paper tube two reserves 0.25 centimeter after rolling up on thin film；Product packaging bags are using poly-
Vinyl adds fluorescent assistant to make with blow moulding, plays waterproof, protection against the tide, corrosion-resisting function.
Specific embodiment
The linear low density polyethylene of the present invention refers to linear low density polyethylene resin for eutectic：Such as 7042；The present invention's
Ldpe resin refers to hp-ldpe resin for eutectic：Such as 2426H, the light blocking black agglomerate of the present invention：Type
Number：6251A, producer:U.S.'s Cabot；The present invention is using conventional mulch film inflation film manufacturing machine group：Model SJ-65.
Embodiment 1
Formula：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
80%；Low Density Polyethylene 4%；Ageing-resistant master batch 6%；Light blocking black agglomerate 10%.Ageing-resistant master batch therein is matched somebody with somebody by following weight
The raw material mixing granulation of ratio is formed：13 parts of hindered amine as light stabilizer, 6.5 parts of composite antioxidants, 6.5 parts of benzotriazole ultraviolet
Absorbent mixing granulation is formed.
Preparation technology：Following steps are specifically included, linea low density is initially charged in blender by above-mentioned mass percent
Polyvinyl resin, is subsequently adding ldpe resin, adds ageing-resistant master batch and light blocking black agglomerate, and stirring is fully mixed
It is even；Using the control temperature of SIEMENS PLC terminal software input temp controller, length measurement sensor control width, tensile test
The laterally longitudinal pulling force of instrument control system.Control temperature is divided into 6 temperature sections：1st 175 DEG C of temperature section, 195 DEG C of the 2nd temperature section,
It is described at 3rd 215 DEG C of temperature section, 205 DEG C of the 4th temperature section, 215 DEG C of the 5th temperature section, 195 DEG C of the 6th temperature section
1-6 temperature sections are followed successively by the area's homogenization temperature of barrel 1,2 area's plasticization temperatures, 2 area's compression temperatures, 4th area in temperature control system
Compression temperature, flange filtration temperature and die head temperature；Input length measurement sensor control width 2400mm, input tension tester
The laterally longitudinal pulling force 1.7N of control.Complete to feed, the charging aperture of machine barrel will be put into mixed plastic grain using mechanical hand,
Then conveying through screw rod, homogenizing, compression, filtration, using multiple flow passages blow molding, die head adopts central feeding for circular ring type
Mouth mold molding mode；Port mould diameter 200-300 heads adopt internal coiling composite molding, runner 8-10 runners hole spiral to change material
Flow direction；By the control of die head compression ratio in 4.0-4.5 in molding, thin film blow-up ratio is controlled in 3.0-3.5；Then draw, institute
Stating traction includes the first traction, excessive, the second traction stretching film forming, carries out cuing open width, flattening-out finally according to product specification, obtains width
1200mm, thickness 0.008-0.01mm mulch films, then the cooling of Jing circulated airs, terminal computer control machinery hand is batched, packed.Using
1.45 meters of screw thread paper tubes of high intensity, paper tube two reserves 0.25 centimeter after rolling up on thin film；Product packaging bags adopt polyvinyl resin
Add fluorescent assistant to make with blow moulding, play waterproof, protection against the tide, corrosion-resisting function.
Embodiment 2
Formula：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
65%；Low Density Polyethylene 10%；Ageing-resistant master batch 10%；Light blocking black agglomerate 15%；Ageing-resistant master batch therein is by following weight
The raw material mixing granulation of proportioning is formed：7 parts of hindered amine as light stabilizer, 3.5 parts of composite antioxidants, 4.5 parts of benzotriazoles are ultraviolet
Light absorbers mixing granulation is formed.
Preparation technology：Following steps are specifically included, linea low density is initially charged in blender by above-mentioned mass percent
Polyvinyl resin, is subsequently adding ldpe resin, adds ageing-resistant master batch and light blocking black agglomerate, and stirring is fully mixed
It is even；Using the control temperature of SIEMENS PLC terminal software input temp controller, length measurement sensor control width, tensile test
The laterally longitudinal pulling force of instrument control system.Control temperature is divided into 6 temperature sections：1st 165 DEG C of temperature section, 185 DEG C of the 2nd temperature section,
At 3rd 205 DEG C of temperature section, 195 DEG C of the 4th temperature section, 205 DEG C of the 5th temperature section, 185 DEG C of the 6th temperature section, 1-6 temperature
Section is followed successively by the area's homogenization temperature of barrel 1 in temperature control system, 2 area's plasticization temperatures, 2 area's compression temperatures, 4th area compression temperature
Degree, flange filtration temperature and die head temperature；Input length measurement sensor control width 2400mm, input tension tester control are horizontal
To the pulling force 1.7N of longitudinal direction.Complete to feed, the charging aperture of machine barrel, Ran Houjing will be put into mixed plastic grain using mechanical hand
Cross the conveying of screw rod, homogenizing, compression, filtration, using multiple flow passages blow molding, die head adopt central feeding for circular ring type mouth mold into
Type mode；Port mould diameter 200-300 heads adopt internal coiling composite molding, runner 8-10 runners hole spiral to change Flow of Goods and Materials side
To；By the control of die head compression ratio in 4.0-4.5 in molding, thin film blow-up ratio is controlled in 3.0-3.5；Then draw, the traction
Including the first traction, excessive, the second traction stretching film forming, carry out cuing open width, flattening-out finally according to product specification, obtain width
1200mm, thickness 0.008-0.01mm mulch films, then the cooling of Jing circulated airs, terminal computer control machinery hand is batched, packed.Using
1.45 meters of screw thread paper tubes of high intensity, paper tube two reserves 0.25 centimeter after rolling up on thin film；Product packaging bags adopt polyvinyl resin
Add fluorescent assistant to make with blow moulding, play waterproof, protection against the tide, corrosion-resisting function.
Embodiment 3
Formula：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
70%；Low Density Polyethylene 10%；Ageing-resistant master batch 8%；Light blocking black agglomerate 12%；Ageing-resistant master batch therein is matched somebody with somebody by following weight
The raw material mixing granulation of ratio is formed：10 parts of hindered amine as light stabilizer, 5 parts of composite antioxidants, 5.5 parts of benzotriazole ultraviolet are inhaled
Receive agent mixing granulation to form.
Preparation technology：Following steps are specifically included, linea low density is initially charged in blender by above-mentioned mass percent
Polyvinyl resin, is subsequently adding ldpe resin, adds ageing-resistant master batch and light blocking black agglomerate, and stirring is fully mixed
It is even；Using the control temperature of SIEMENS PLC terminal software input temp controller, length measurement sensor control width, tensile test
The laterally longitudinal pulling force of instrument control system.Control temperature is divided into 6 temperature sections：1st 170 DEG C of temperature section, 190 DEG C of the 2nd temperature section,
At 3rd 210 DEG C of temperature section, 200 DEG C of the 4th temperature section, 210 DEG C of the 5th temperature section, 190 DEG C of the 6th temperature section, 1-6 temperature
Section be followed successively by the area's homogenization temperature of barrel 1 in temperature control system, 2 area's plasticization temperatures, 2 area's compression temperatures, 4 area's compression temperatures,
Flange filtration temperature and die head temperature；Input length measurement sensor control width 2400mm, input tension tester control are horizontal
The pulling force 1.7N of longitudinal direction.Complete to feed, the charging aperture of machine barrel will be put into mixed plastic grain using mechanical hand, then pass through
The conveying of screw rod, homogenizing, compression, filtration, using multiple flow passages blow molding, die head adopts central feeding for circular ring type mouth mold molding
Mode；Port mould diameter 200-300 heads adopt internal coiling composite molding, runner 8-10 runners hole spiral to change Flow of Goods and Materials side
To；By the control of die head compression ratio in 4.0-4.5 in molding, thin film blow-up ratio is controlled in 3.0-3.5；Then draw, the traction
Including the first traction, excessive, the second traction stretching film forming, carry out cuing open width, flattening-out finally according to product specification, obtain width
1200mm, thickness 0.008-0.01mm mulch films, then the cooling of Jing circulated airs, terminal computer control machinery hand is batched, packed.Using
1.45 meters of screw thread paper tubes of high intensity, paper tube two reserves 0.25 centimeter after rolling up on thin film；Product packaging bags adopt polyvinyl resin
Add fluorescent assistant to make with blow moulding, play waterproof, protection against the tide, corrosion-resisting function.
Embodiment 4
Formula：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
72%；Low Density Polyethylene 8%；Ageing-resistant master batch 8%；Light blocking black agglomerate 12%；Ageing-resistant master batch therein is matched somebody with somebody by following weight
The raw material mixing granulation of ratio is formed：10 parts of hindered amine as light stabilizer, 5 parts of composite antioxidants, 5.5 parts of benzotriazole ultraviolet are inhaled
Receive agent mixing granulation to form.
Preparation technology：By this formula, preparation technology is same as Example 3.
Embodiment 5
Formula：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
73%；Low Density Polyethylene 7%；Ageing-resistant master batch 8%；Light blocking black agglomerate 12%；Ageing-resistant master batch therein is matched somebody with somebody by following weight
The raw material mixing granulation of ratio is formed：10 parts of hindered amine as light stabilizer, 5 parts of composite antioxidants, 5.5 parts of benzotriazole ultraviolet are inhaled
Receive agent mixing granulation to form.
Preparation technology：By this formula, preparation technology is same as Example 3.
Embodiment 6
Formula：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
74%；Low Density Polyethylene 6%；Ageing-resistant master batch 8%；Light blocking black agglomerate 12%；Ageing-resistant master batch therein is matched somebody with somebody by following weight
The raw material mixing granulation of ratio is formed：10 parts of hindered amine as light stabilizer, 5 parts of composite antioxidants, 5.5 parts of benzotriazole ultraviolet are inhaled
Receive agent mixing granulation to form.
Preparation technology：By this formula, preparation technology is same as Example 3.
Embodiment 7
Formula：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
75%；Low Density Polyethylene 5%；Ageing-resistant master batch 8%；Light blocking black agglomerate 12%；Ageing-resistant master batch therein is matched somebody with somebody by following weight
The raw material mixing granulation of ratio is formed：10 parts of hindered amine as light stabilizer, 5 parts of composite antioxidants, 5.5 parts of benzotriazole ultraviolet are inhaled
Receive agent mixing granulation to form.
Preparation technology：By this formula, preparation technology is same as Example 3.
Embodiment 8
Formula：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
76%th, Low Density Polyethylene 4%, ageing-resistant master batch 8%, light blocking black agglomerate 12%；Ageing-resistant master batch therein is matched somebody with somebody by following weight
The raw material mixing granulation of ratio is formed：10 parts of hindered amine as light stabilizer, 5 parts of composite antioxidants, 5.5 parts of benzotriazole ultraviolet are inhaled
Receive agent mixing granulation to form.
Preparation technology：By this formula, preparation technology is same as Example 3.
Embodiment 9
Formula：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
74%th, Low Density Polyethylene 6%, ageing-resistant master batch 8%, light blocking black agglomerate 12%；Ageing-resistant master batch therein is matched somebody with somebody by following weight
The raw material mixing granulation of ratio is formed：7 parts of hindered amine as light stabilizer, 3.5 parts of composite antioxidants, 4.5 parts of benzotriazole ultraviolet
Absorbent mixing granulation is formed.
Preparation technology：By this formula, preparation technology is same as Example 3.
Embodiment 10
Formula：The special Herbicide film of one planting fruit-trees, is made up of the raw material of following masses percentage ratio：Linear low density polyethylene
74%th, Low Density Polyethylene 6%, ageing-resistant master batch 8%, light blocking black agglomerate 12%；Ageing-resistant master batch therein is matched somebody with somebody by following weight
The raw material mixing granulation of ratio is formed：13 parts of hindered amine as light stabilizer, 6.5 parts of composite antioxidants, 6.5 parts of benzotriazole ultraviolet
Absorbent mixing granulation is formed.
Preparation technology：By this formula, preparation technology is same as Example 3.
Take the meansigma methodss of the special Herbicide film of fruit tree of the manufacture of the embodiment of the present invention 1 to 10 carries out mechanics with common weed removal mulch film
The comparison of performance and weeding rate, the results are shown in Table 1.
Claims (4)
1. the special Herbicide film of a planting fruit-trees, it is characterised in that：Its preparation technology specifically includes following steps：
A) preparation of ageing-resistant master batch：Hindered amine as light stabilizer, composite antioxidant, benzotriazole ultra-violet absorption are pressed first
The weight proportion of agent weighs each raw material, mix homogeneously, the prepared described ageing-resistant master batch of pelletize；Described ageing-resistant master batch by with
The raw material mixing granulation of lower weight proportion is formed：Hindered amine as light stabilizer 7-13 parts, composite antioxidant 3.5-6.5 parts, benzo three
Azole UV absorbent 4.5-6.5 part；
B) mulch film production：The special Herbicide film of fruit tree is made up of the raw material of following masses percentage ratio：Linear low density polyethylene 65-
80%；Low Density Polyethylene 4-10%；Ageing-resistant master batch 6-10%；Light blocking black agglomerate 10-15%；By mass percentage in blender
In be initially charged linear low density polyethylene resin, be subsequently adding ldpe resin, add light blocking black agglomerate and institute
The ageing-resistant master batch stated, stirring is fully mixed；Using conventional mulch film inflation film manufacturing machine group, it is put into above-mentioned machine barrel with mixed raw material and enters
Material mouth, in the 1st 165-175 DEG C of temperature section, the 2nd 185-195 DEG C of temperature section, the 3rd 205-215 DEG C of temperature section, the 4th temperature
At 195-205 DEG C of section, the 5th 205-215 DEG C of temperature section, the 6th 185-195 DEG C of temperature section, it is blow molded into using multiple flow passages
Type, the molding die of thin film unit adopts central feeding for circular ring type mouth mold, and port mould diameter is 200-300, and head adopts interior spiral shell
Flos Inulae synthesis type, runner 8-10, runner hole spiral changes Flow of Goods and Materials direction, and die head compression ratio is 4.0-4.5 in molding；Thin film
Blow-up ratio is 3.0-3.5 blow moldings, and then traction, Jing circulated airs are cooled down, batch, packed.
2. the special Herbicide film of a planting fruit-trees as claimed in claim 1, it is characterised in that：1st 170 DEG C of temperature section, the 2nd temperature
190 DEG C of section, 210 DEG C of the 3rd temperature section, 200 DEG C of the 4th temperature section, 210 DEG C of the 5th temperature section, the 6th temperature section 190
℃。
3. the special Herbicide film of a planting fruit-trees as claimed in claim 1, it is characterised in that：By the raw material system of following masses percentage ratio
Into：Linear low density polyethylene 74%, Low Density Polyethylene 6%, ageing-resistant master batch 8%, light blocking black agglomerate 12%, described is resistance to old
Change master batch to be formed by the raw material mixing granulation of following weight proportion：Hindered amine as light stabilizer 7-13 parts, composite antioxidant 3.5-6.5
Part, Benzotriazole Ultraviolet Stabilizer 4.5-6.5 parts.
4. the special Herbicide film of a planting fruit-trees as claimed in claim 1, it is characterised in that：By the raw material system of following masses percentage ratio
Into：Linear low density polyethylene 74%, Low Density Polyethylene 6%, ageing-resistant master batch 8%, light blocking black agglomerate 12%, described is resistance to old
Change master batch to be formed by the raw material mixing granulation of following weight proportion：10 parts of hindered amine as light stabilizer, 5 parts of composite antioxidant, benzo
5.5 parts of triazole type UV absorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534523.4A CN104341672B (en) | 2014-10-11 | 2014-10-11 | Special weeding film for fruit trees and preparation process of special weeding film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534523.4A CN104341672B (en) | 2014-10-11 | 2014-10-11 | Special weeding film for fruit trees and preparation process of special weeding film |
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| Publication Number | Publication Date |
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| CN104341672A CN104341672A (en) | 2015-02-11 |
| CN104341672B true CN104341672B (en) | 2017-05-03 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN106188821A (en) * | 2016-08-31 | 2016-12-07 | 程志刚 | A kind of plastic film for agricultural use |
| CN106832533A (en) * | 2017-03-15 | 2017-06-13 | 吴军 | Overwater photovoltaic floating body stand material and preparation process 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 |
| CN108034114A (en) * | 2017-12-19 | 2018-05-15 | 广东德新科技孵化器有限公司 | Non-discolouring PE films of a kind of light shine and preparation method thereof |
| CN109593264B (en) * | 2018-12-13 | 2021-08-31 | 云南省农业科学院甘蔗研究所 | Durable photodegradable mulching film with low light transmittance and production method thereof |
| CN110846903A (en) * | 2019-11-14 | 2020-02-28 | 刘厚义 | High-strength diffuse-light dustproof greenhouse woven film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012088711A1 (en) * | 2010-12-31 | 2012-07-05 | 大连工业大学 | Degradable plastic film and manufacturing method thereof |
| CN102660073B (en) * | 2012-05-18 | 2013-10-09 | 天水天宝塑业有限责任公司 | Black functional mulching film special for potatoes |
| CN102675725B (en) * | 2012-05-18 | 2013-09-04 | 天水天宝塑业有限责任公司 | Special black weed-removal mulching film for traditional Chinese medicinal materials |
| CN102675724B (en) * | 2012-05-18 | 2013-09-04 | 天水天宝塑业有限责任公司 | Black functional mulch dedicated for fruit tree |
| KR20140044571A (en) * | 2012-10-05 | 2014-04-15 | 영남대학교 산학협력단 | A film for wrapping and a preparation method thereof |
| CN103131077A (en) * | 2013-02-25 | 2013-06-05 | 江苏金霸环境技术股份有限公司 | Smooth-surface geomembrane and preparation method thereof |
| CN104004266A (en) * | 2014-06-18 | 2014-08-27 | 甘肃宏鑫农业科技有限公司 | Black weeding mulching film special for potatoes |
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