CN109337168A - A kind of modification regeneration material and preparation method thereof for producing black mulch film - Google Patents
A kind of modification regeneration material and preparation method thereof for producing black mulch film Download PDFInfo
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- CN109337168A CN109337168A CN201811139248.0A CN201811139248A CN109337168A CN 109337168 A CN109337168 A CN 109337168A CN 201811139248 A CN201811139248 A CN 201811139248A CN 109337168 A CN109337168 A CN 109337168A
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- modification regeneration
- linear low
- mulch film
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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
- C08J2323/06—Polyethene
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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
- 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
- C08J2423/08—Copolymers of ethene
Abstract
The present invention relates to renewable material modified technical fields, and in particular to a kind of for producing the modification regeneration material of black mulch film.The modification regeneration material for being used to produce black mulch film, by weight, preparing raw material includes: mulch recycling 30-40 parts of black polyethylene reworked material, 20-30 parts of linear low density polyethylene A, 20-30 parts of linear low density polyethylene B, 10-15 parts of high performance PE polymer.For producing the modification regeneration material of black mulch film prepared by the present invention, not only there is excellent anti-aging property, and there is excellent tensile strength, elongation at break and angle tear strength, while the melt flow rate (MFR) of modification regeneration material is higher, can effectively improve product quality.
Description
Technical field
The invention belongs to renewable material modified technical fields, more particularly it relates to a kind of for producing black mulch film
Modification regeneration material and preparation method thereof.
Background technique
Plastics and steel, timber, cement are four big basic materials of the world today.As the application of plastic products is increasingly wide
General, generated white pollution has become global public hazards.And plastic reclaimed utilization be not only solve plastic resource it is poor
One of main path, while being also protection environment, one of energy saving preferred approach.
Polyethylene (PE) is that yield is maximum, purposes is most wide, the maximum kind of consumption figure in plastics industry.Currently, with poly-
The continuous expansion of ethylene consumption market, the continuous diversification of polyethylene product, waste quantity are also being continuously increased.Therefore benefit
Be modified regeneration with polyethylene waste, produce be with high added value material the following polyethylene waste plastics recovery master
Approach is wanted, and recycles the emphasis and hot spot of research.
It in agricultural production and life, commonly uses regenerated polythene and produces agricultural mulching, can not only economize on resources, be mulch
New raw material sources are opened up in production, and because regeneration low density polyethylene (LDPE) is by post-consumer agricultural film or packaging bag etc. through making
Grain and obtain, the investment for advantageously reducing white pollution, farming funds being greatly reduced.But in the actual production process, it gives up
Old plastics are after using, it may occur that a degree of aging is degraded or is crosslinked, simultaneously because the migration of processing aid, leads
Causing the mechanical property of waste plastic reduces.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of for producing the modification regeneration material of black mulch film, by weight
Part meter, preparing raw material includes:
As a kind of perferred technical scheme, the melt flow rate (MFR) of the linear low density polyethylene A is 0.5-1.2g/
10min。
As a kind of perferred technical scheme, the relative density of the linear low density polyethylene A is 0.91-0.92g/
cm3。
As a kind of perferred technical scheme, the melt flow rate (MFR) of the linear low density polyethylene B is 2-2.4g/
10min。
As a kind of perferred technical scheme, the relative density of the linear low density polyethylene B is 0.91-0.92g/
cm3。
As a kind of perferred technical scheme, the weight of the linear low density polyethylene A and linear low density polyethylene B
Than for 1-1.2:1.
As a kind of perferred technical scheme, the high performance PE polymer is XP6026.
As a kind of perferred technical scheme, by weight, described for producing the modification regeneration material of black mulch film
Preparing raw material further includes 1-2 parts of auxiliary agents；The auxiliary agent includes antioxidant.
As a kind of perferred technical scheme, it is raw material system that the antioxidant, which is by thiophenes, mercaptan, alkene,
It is standby to obtain.
The second aspect of the invention provides the preparation method of the modification regeneration material for producing black mulch film, step packet
It includes:
1) mulch is recycled into black polyethylene reworked material, linear low density polyethylene A, linear low density polyethylene B, Gao Xing
Energy PE polymer, auxiliary agent, which are added in continuous internal mixer, to be kneaded；
2) mixing is transported to double screw extruder, first three area of extruder temperature controls between 200-260 DEG C, the control of the area Hou Liang
Between 170-250 DEG C, the area Mo Ju controls between 190-150 DEG C system, and fervent film Head Section control is between 180-220 DEG C；
3) by the material after extrusion by filter screen filtration, the filter screen mesh mesh of Shuo≤120 changes primary net for 3 hours, and every piece
Net circulation is with twice, and water cooling is cut later, and four knife water rings are cut, and finally dries wind and send storage.
The utility model has the advantages that using, for producing the modification regeneration material of black mulch film, not only having excellent prepared by the present invention
Anti-aging property, and there is excellent tensile strength, elongation at break and angle tear strength, while modification regeneration material
Melt flow rate (MFR) is higher, can effectively improve product quality.In addition, product of the present invention can save vast resources, make agriculture use
Regeneration particle realization recycles, and is conducive to pollution of area source.
Specific embodiment
It is further clear, complete that the technical characteristic work in technical solution is provided to the present invention With reference to embodiment
Description, not to the limitation of its protection scope.
Word " preferred ", " preferred " in the present invention etc. refer to, can provide in some cases certain beneficial to effect
The embodiment of the present invention of fruit.However, other embodiments are also likely to be preferred under identical circumstances or in the case of other
's.In addition, do not imply that other embodiments are unavailable to the statement of one or more preferred embodiments, be also not intended to by
Other embodiments exclude except the scope of the present invention.
When a numberical range disclosed herein, above range is considered as continuously, and the minimum value including the range and most
Big value and each value between this minimum value and maximum value.Further, when range refers to integer, including the model
Each integer between minimum value and maximum value enclosed.In addition, when providing multiple range Expressive Features or characteristic, Ke Yihe
And the range.In other words, unless otherwise specified, otherwise all ranges disclosed herein are understood to include and are wherein included into
Any and all subrange.For example, should be regarded as including between minimum value 1 and maximum value 10 from the specified range of " 1 to 10 "
Any and all subrange.The Exemplary range of range 1 to 10 include but is not limited to 1 to 6.1,3.5 to 7.8,5.5 to
10 etc..
To solve the above-mentioned problems, the present invention provides a kind of for producing the modification regeneration material of black mulch film, by weight
Part meter, preparing raw material includes:
In a preferred embodiment, by weight, described for producing the modification regeneration material of black mulch film
Preparing raw material further includes 1-2 parts of auxiliary agents；The auxiliary agent includes antioxidant.
Mulch recycles black polyethylene reworked material
Heretofore described polyethylene is a kind of aggregated thermoplastic resin obtained of ethylene, is linearly saturated for one kind hydrocarbon
Compound, inertia is very big, does not have any toxicity to environment.It mainly includes low density polyethylene (LDPE) (LDPE), linea low density
Polyethylene (LLDPE), high density polyethylene (HDPE) (HDPE).Wherein linear low density polyethylene is the maximum product of yield in polyethylene
Kind, have a variety of excellent performances of low density polyethylene (LDPE) and high density polyethylene (HDPE) concurrently, in film applications, application is very extensive.
The source of heretofore described recycled polyethylene is that mulch recycles black polyethylene reworked material, wherein the mulch
Recycle black polyethylene reworked material composition: LLDPE≤70wt%, LDPE≤5wt%；Rong body flows Su Shuai≤5%；Hui Fen≤
1%；Shui Fen≤0.2%.
The melt flow rate (MFR) of heretofore described mulch recycling black polyethylene reworked material is marked according to GB/T3682-2000
Standard is tested, and is tested on XNR-400C type melt flow rate instrument, and test temperature is 190 ± 0.5 DEG C, load 2160g；Ash
Point content is tested according to GB/T9345.1-2008 standard, and calcination temperature is 600 ± 10 DEG C, and calcination time is 30min to perseverance
Weight；Moisture content is tested according to QB1648-92 standard, and oven temperature is 100 ± 5 DEG C, and drying time is 3 hours.
Heretofore described mulch recycling black polyethylene reworked material is bought from Qujing of Yunnan plastics (group) Co., Ltd.
Linear low density polyethylene A
Heretofore described linear low density polyethylene is nontoxic, tasteless, odorless.It has compared with low density polyethylene (LDPE)
Higher softening temperature and melting temperature, there is that intensity is big, good toughness, rigidity is big, heat-resisting, cold resistance is good, also have good
Good environmental stress crack resistance, the performances such as impact resistant strength, tear-resistant intensity, and can acid and alkali resistance, organic solvent etc., thus
It is widely used in the fields such as industry, agricultural, medicine, health and daily necessities.
In a preferred embodiment, the melt flow rate (MFR) of the linear low density polyethylene A is 0.5-1.2g/
10min。
In a preferred embodiment, the relative density of the linear low density polyethylene A is 0.91-0.92g/
cm3。
A kind of melt flow rate (MFR), that is, melt index, the numerical value of mobility when being expression plastic material processing, most often makes
Testing standard is ASTM D-1238, and the measuring instrument of the testing standard is melt index meter, unit: g/10min.Test
Specific operation process be: by macromolecule to be measured (plastics) raw material be placed in sulculus in, slot end is connected to tubule, and capillary diameter is
2.095mm, pipe range 8mm.After being heated to certain temperature, raw material upper end applies certain constant weight by piston and extrudes downwards, measures
Survey the weight that the raw material is extruded in 10 minutes, the as flow index of the plastics.Representation can illustrate such as: MI:30g/
10min, it indicates that the plastics are extruded 30 grams in 10 minutes.The MI value of general common plastics ranges approximately between 1~25.MI
Bigger, represent that the plastic raw materials viscosity is smaller and molecular wt is smaller, it is on the contrary then represent the plastic viscosity more greatly and molecular wt
Bigger.
Relative density is the quality of substance unit volume, is a kind of characteristic of substance, only related with substance classes, with substance
Quality it is unrelated with volume.
The melt flow rate (MFR) of heretofore described linear low density polyethylene is tested according to ASTM D-1238, test temperature
Degree is 190 ± 0.5 DEG C, load 2160g.The relative density of the linear low density polyethylene according to ASTM D-792 standard into
Row test.
Linear low density polyethylene A is bought from ExxonMobil Chemical in the present invention.Wherein, model LL1030XV,
Melt flow rate (MFR) is 0.5g/10min, relative density 0.918g/cm3；Model KJX-042, melt flow rate (MFR) are
1.2g/10min relative density 0.92g/cm3；Model LL-1042, melt flow rate (MFR) 1.0g/10min, relatively
Density is 0.918g/cm3。
Linear low density polyethylene B
In a preferred embodiment, the melt flow rate (MFR) of the linear low density polyethylene B is 2-2.4g/
10min。
In a preferred embodiment, the relative density of the linear low density polyethylene B is 0.91-0.92g/
cm3。
In a preferred embodiment, the weight of the linear low density polyethylene A and linear low density polyethylene B
Than for 1-1.2:1.
Linear low density polyethylene B is bought from ExxonMobil Chemical in the present invention.Wherein, model FL201XV melts
Body flow rate is 2.0g/10min, relative density 0.916g/cm3；Model LL-3023, melt flow rate (MFR) are
2.35g/10min, relative density 0.917g/cm3；Model LL-1002, melt flow rate (MFR) 2.0g/10min, phase
It is 0.918g/cm to density3。
It is excellent that inventor is found surprisingly that the modification regeneration material provided by the present application for producing black mulch film not only has
Anti-aging property, and have excellent tensile strength, elongation at break, angle tear strength and melt flow rate (MFR).Hair
Bright people speculates that processing flowability is poor, and certain melt flow rate (MFR) is added in formula since the melt viscosity of reworked material is larger
It can be effectively improved fluidity of molten with the linear low density polyethylene in density range, reduce difficulty of processing, while physical force
Performance is learned to be consequently increased.But when a kind of linear low density polyethylene is used alone, the improvement of mechanical property is not obvious, because
Linear low density polyethylene A and linear low density polyethylene B are used in compounding in this application, the drawing of reworked material can be effectively improved
Stretch intensity, elongation at break and angle tear strength.
High performance PE polymer
Heretofore described high-performance polyethylene (PE) polymer uses in numerous applications, such as packaging, agricultural, building
With construction, industry and electric wire and cable.These polymer provide a series of performance characteristics, can be used for preparing a variety of films
Structure provides outstanding mechanical performance.
In some embodiments, the high performance PE polymer is XP6026.
XP6026 is the high performance PE polymeric articles with outstanding performance that ExxonMobil Chemical released in 2016.
It is with outstanding mechanical performance, high yield and high bubble stability, excellent heat sealability.Melt flow rate (MFR) is 0.2g/
10min, relative density 0.916g/cm3。
Auxiliary agent
In some embodiments, the auxiliary agent includes antioxidant.
In a preferred embodiment, the auxiliary agent further includes anti ultraviolet agent；The anti ultraviolet agent is the auxiliary agent
23wt%.
Under the premise of not influencing other performances of product, which can also include other auxiliary agents, for example, heat is steady
Determine agent, lubricant, plasticizer, ultraviolet absorber etc..
In some embodiments, the antioxidant is to be prepared by thiophenes, mercaptan, alkene for raw material
It arrives, preparation step includes:
(1) n-hexane, thiophenes, mercaptan, alkene, hydrogen are continuously added into polymeric kettle from 5L polymeric kettle bottom
Gas；
(2) by the hexane solution of the hexane solution containing vanadium oxytrichloride and the aluminium of ethylmercury chloride containing sesquialter respectively with 0.5L/h
Polymeric kettle is added simultaneously in rate, and wherein vanadium oxytrichloride is 0.6g/h, and sesquialter ethylmercury chloride aluminium is 2.5g/h, starts polymerization reaction；
(3) after control reaction temperature is 20 DEG C, pressure 0.5MPa, polymerization reaction 1h, ethyl alcohol 20ml is added and terminates polymerization
The cohesion of obtained polymer solution, drying are obtained antioxidant by reaction.
Wherein the thiophenes are 2- vinyl thiophene；The mercaptan is isopentene group mercaptan；The alkene is
Octadecylene；The quality that the n-hexane is added per hour is 6kg；The quality that the hydrogen is added per hour is 0.001kg；It is described
The gross mass that 2- vinyl thiophene, isopentene group mercaptan, octadecylene are added per hour is 0.5kg；The wherein 2- vinyl thiophene
The mass ratio that pheno, isopentene group mercaptan, octadecylene are added per hour is 1:1-2.5:1-2.
No. CAS of heretofore described 2- vinyl thiophene is 1918-82-7, and resistance to Jilin Chemical is pacified in purchase certainly；Isopentene group
No. CAS of mercaptan is 5287-45-6, is bought from lark prestige Science and Technology Ltd.；No. CAS of octadecylene is 112-88-9, purchase
From Shanghai Aladdin biochemical technology limited liability company；No. CAS of vanadium oxytrichloride is 7727-18-6, and purchase is scientific and technological from lark prestige
Co., Ltd；No. CAS of sesquialter ethylmercury chloride aluminium is 12075-68-2, is bought from lark prestige Science and Technology Ltd..
Inventor has found that modification regeneration material provided herein has preferable melt flow rate (MFR) and tensile strength.Hair
Bright people speculate the possible reason is, it is larger to generate polarity in the process there are a degree of degradation and crosslinking for reclaiming material
Product, such as aldehyde, ketone, carboxylic acid compound so that the polarity of reworked material becomes larger, the long-chain relative flexibility in antioxidant,
And polar portion is close with the polar portion electronegativity of reworked material in antioxidant, the flexible chain part of the nonpolarity in antioxidant
Stagger-wrap is close with the nonpolar moiety electronegativity of the nonpolar moiety of reworked material and polyethylene virgin material in system.Secondly
It tangles between flexible chain in antioxidant and disentanglement carries out simultaneously, intermolecular interaction space increases, polymer macromolecule
Chain relative motion reduces the cohesive force of polymer molecule interchain.In addition to this, inventor also found modification provided herein
Reworked material not only has preferable elongation at break, and has preferable angle tear strength.Inventor's supposition, possible original
Flexible chain because being antioxidant in the application is intertwine with each other between each component, so that be indirectly connected between each component, then
Raw material merge sufficiently with polyethylene virgin material.In addition, inventor is found surprisingly that modification regeneration material provided herein can be into
One step improve reworked material mechanical property and anti-aging property, inventor speculate the possible reason is antioxidant there are energy
There are coordinations with antioxidant for the metal ion removed free radical, and make in reworked material, and cooperation is formed by after coordination
Object can not only stable metal ion, moreover it is possible to promote the further oxidation of reworked material after preventing it from aoxidizing.
In some embodiments, the anti ultraviolet agent is selected from UV-531, UV-9, UV-326, UV-327, UV-328, UV-
329, one of septichen phenyl ester, ortho-nitraniline, p-cresol or a variety of.
In a preferred embodiment, the anti ultraviolet agent is UV-327, and No. CAS is 3864-99-1, is bought from upper
Extra large Aladdin biochemical technology limited liability company.
The second aspect of the invention provides the preparation method of the modification regeneration material for producing black mulch film, step packet
It includes:
1) mulch is recycled into black polyethylene reworked material, linear low density polyethylene A, linear low density polyethylene B, Gao Xing
Energy PE polymer, auxiliary agent, which are added in continuous internal mixer, to be kneaded；
2) mixing is transported to double screw extruder, first three area of extruder temperature controls between 200-260 DEG C, the control of the area Hou Liang
Between 170-250 DEG C, the area Mo Ju controls between 190-150 DEG C system, and fervent film Head Section control is between 180-220 DEG C；
3) by the material after extrusion by filter screen filtration, the filter screen mesh mesh of Shuo≤120 changes primary net for 3 hours, and every piece
Net circulation is with twice, and water cooling is cut later, and four knife water rings are cut, and finally dries wind and send storage.
The present invention is specifically described below by embodiment, in addition, if without other explanations, it is raw materials used to be all
It is commercially available.Heretofore described mulch recycles black polyethylene reworked material composition: LLDPE≤70wt%, LDPE≤5wt%；It is molten
Body flows Su Shuai≤5%；Hui Fen≤1%；Shui Fen≤0.2%；It buys from Qujing of Yunnan plastics (group) Co., Ltd.
Embodiment
Embodiment 1
Embodiment 1 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is that (melt flow rate (MFR) 0.5g/10min, relative density are LL1031XV
0.918g/cm3)。
The linear low density polyethylene B is that (melt flow rate (MFR) 2.0g/10min, relative density are FL201XV
0.916g/cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
Wherein the antioxidant is to be prepared by thiophenes, mercaptan, alkene for raw material, preparation step packet
It includes:
(1) n-hexane, thiophenes, mercaptan, alkene, hydrogen are continuously added into polymeric kettle from 5L polymeric kettle bottom
Gas；
(2) by the hexane solution of the hexane solution containing vanadium oxytrichloride and the aluminium of ethylmercury chloride containing sesquialter respectively with 0.5L/h
Polymeric kettle is added simultaneously in rate, and wherein vanadium oxytrichloride is 0.6g/h, and sesquialter ethylmercury chloride aluminium is 2.5g/h, starts polymerization reaction；
(3) after control reaction temperature is 20 DEG C, pressure 0.5MPa, polymerization reaction 1h, ethyl alcohol 20ml is added and terminates polymerization
The cohesion of obtained polymer solution, drying are obtained antioxidant by reaction.
Wherein the thiophenes are 2- vinyl thiophene；The mercaptan is isopentene group mercaptan；The alkene is
Octadecylene；The quality that the n-hexane is added per hour is 6kg；The quality that the hydrogen is added per hour is 0.001kg；It is described
The gross mass that 2- vinyl thiophene, isopentene group mercaptan, octadecylene are added per hour is 0.5kg；The wherein 2- vinyl thiophene
The mass ratio that pheno, isopentene group mercaptan, octadecylene are added per hour is 1:1:1.
The preparation step of the modification regeneration material for producing black mulch film includes:
1) mulch is recycled into black polyethylene reworked material, linear low density polyethylene A, linear low density polyethylene B, Gao Xing
Energy PE polymer, auxiliary agent, which are added in continuous internal mixer, to be kneaded；
2) mixing is transported to double screw extruder, and at 230 DEG C, the area Hou Liang is controlled 200 the control of first three area of extruder temperature
DEG C, the area Mo Ju is controlled at 170 DEG C, and fervent film Head Section control is at 200 DEG C；
3) by the material after extrusion by filter screen filtration, the filter screen mesh mesh of Shuo≤120 changes primary net for 3 hours, and every piece
Net circulation is with twice, and water cooling is cut later, and four knife water rings are cut, and finally dries wind and send storage.
Embodiment 2
Embodiment 2 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is that (melt flow rate (MFR) 0.5g/10min, density are LL1031XV
0.918g/cm3)。
The linear low density polyethylene B is FL201XV (melt flow rate (MFR) 2.0g/10min, density 0.916g/
cm3)；The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method is the same as that of Example 1 for the antioxidant, the difference is that, wherein the 2- vinyl thiophene, different
The mass ratio that pentenyl mercaptan, octadecylene are added per hour is 1:2:1.
The preparation step of the modification regeneration material for producing black mulch film includes:
1) mulch is recycled into black polyethylene reworked material, linear low density polyethylene A, linear low density polyethylene B, Gao Xing
Energy PE polymer, auxiliary agent, which are added in continuous internal mixer, to be kneaded；
2) mixing is transported to double screw extruder, and at 200 DEG C, the area Hou Liang is controlled 250 the control of first three area of extruder temperature
DEG C, the area Mo Ju is controlled at 180 DEG C, and fervent film Head Section control is at 220 DEG C；
3) by the material after extrusion by filter screen filtration, the filter screen mesh mesh of Shuo≤120 changes primary net for 3 hours, and every piece
Net circulation is with twice, and water cooling is cut later, and four knife water rings are cut, and finally dries wind and send storage.
Embodiment 3
Embodiment 3 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is that (melt flow rate (MFR) 0.5g/10min, density are LL1031XV
0.918g/cm3)。
The linear low density polyethylene B is FL201XV (melt flow rate (MFR) 2.0g/10min, density 0.916g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method is the same as that of Example 1 for the antioxidant, the difference is that, wherein the 2- vinyl thiophene, different
The mass ratio that pentenyl mercaptan, octadecylene are added per hour is 1:2.2:1.7.
The preparation step of the modification regeneration material for producing black mulch film includes:
1) mulch is recycled into black polyethylene reworked material, linear low density polyethylene A, linear low density polyethylene B, Gao Xing
Energy PE polymer, auxiliary agent, which are added in continuous internal mixer, to be kneaded；
2) mixing is transported to double screw extruder, and at 260 DEG C, the area Hou Liang is controlled 170 the control of first three area of extruder temperature
DEG C, the area Mo Ju is controlled at 150 DEG C, and fervent film Head Section control is at 180 DEG C；
3) by the material after extrusion by filter screen filtration, the filter screen mesh mesh of Shuo≤120 changes primary net for 3 hours, and every piece
Net circulation is with twice, and water cooling is cut later, and four knife water rings are cut, and finally dries wind and send storage.
Embodiment 4
Embodiment 4 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is that (melt flow rate (MFR) 0.5g/10min, density are LL1031XV
0.918g/cm3)。
The linear low density polyethylene B is FL201XV (melt flow rate (MFR) 2.0g/10min, density 0.916g/
cm3)；The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method is the same as that of Example 1 for the antioxidant, the difference is that, wherein the 2- vinyl thiophene, different
The mass ratio that pentenyl mercaptan, octadecylene are added per hour is 1:2.5:2.0.
The preparation step of the modification regeneration material for producing black mulch film includes:
1) mulch is recycled into black polyethylene reworked material, linear low density polyethylene A, linear low density polyethylene B, Gao Xing
Energy PE polymer, auxiliary agent, which are added in continuous internal mixer, to be kneaded；
2) mixing is transported to double screw extruder, and at 200 DEG C, the area Hou Liang is controlled 170 the control of first three area of extruder temperature
DEG C, the area Mo Ju is controlled at 190 DEG C, and fervent film Head Section control is at 200 DEG C；
3) by the material after extrusion by filter screen filtration, the filter screen mesh mesh of Shuo≤120 changes primary net for 3 hours, and every piece
Net circulation is with twice, and water cooling is cut later, and four knife water rings are cut, and finally dries wind and send storage.
Embodiment 5
Embodiment 5 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is that (melt flow rate (MFR) 0.5g/10min, density are LL1031XV
0.918g/cm3)。
The linear low density polyethylene B is FL201XV (melt flow rate (MFR) 2.0g/10min, density 0.916g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method is the same as that of Example 1 for the antioxidant, the difference is that, wherein the 2- vinyl thiophene, different
The mass ratio that pentenyl mercaptan, octadecylene are added per hour is 1:2.2:1.5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Embodiment 6
Embodiment 6 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is KJX-042 (melt flow rate (MFR) 1.2g/10min, density 0.920g/
cm3)。
The linear low density polyethylene B is FL201XV (melt flow rate (MFR) 2.0g/10min, density 0.916g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Embodiment 7
Embodiment 7 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is FL201XV (melt flow rate (MFR) 2.0g/10min, density 0.916g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Embodiment 8
Embodiment 8 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is that (melt flow rate (MFR) 2.35g/10min, density are LL-3023
0.917g/cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Embodiment 9
Embodiment 9 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 1
Comparative example 1 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1117 (melt flow rate (MFR) 1.5g/10min, density 0.925g/
cm3), it buys from ExxonMobil Chemical.
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 2
Comparative example 2 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL2401 (melt flow rate (MFR) 0.35g/10min, density 0.936g/
cm3), it buys from ExxonMobil Chemical.
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 3
Comparative example 3 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL8460 (melt flow rate (MFR) 3.3g/10min, density 0.938g/
cm3), it buys from ExxonMobil Chemical.
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 4
Comparative example 4 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-3218 (melt flow rate (MFR) 1.8g/10min, density 0.926g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 5
Comparative example 5 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method is the same as that of Example 1 for the antioxidant, the difference is that, wherein the 2- vinyl thiophene, different
The mass ratio that pentenyl mercaptan, octadecylene are added per hour is 0.2:2.2:1.5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 6
Comparative example 6 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method is the same as that of Example 1 for the antioxidant, the difference is that, wherein the 2- vinyl thiophene, different
The mass ratio that pentenyl mercaptan, octadecylene are added per hour is 1:0.2:1.5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 7
Comparative example 7 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method is the same as that of Example 1 for the antioxidant, the difference is that, wherein the 2- vinyl thiophene, different
The mass ratio that pentenyl mercaptan, octadecylene are added per hour is 1:2.2:0.5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 8
Comparative example 8 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method is the same as that of Example 1 for the antioxidant, the difference is that, wherein the 2- vinyl thiophene, different
The mass ratio that pentenyl mercaptan, octadecylene are added per hour is 2:4:3.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 9
Comparative example 9 provide it is a kind of for producing the modification regeneration material of black mulch film, by weight, for producing black
The raw material for preparing of the modification regeneration material of mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The antioxidant is antioxidant 1010, and No. CAS is 6683-19-8, and resistance to Jilin Chemical is pacified in purchase certainly.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 10
Comparative example 10 provide it is a kind of for producing the modification regeneration material of black mulch film, it is by weight, black for producing
The raw material for preparing of the modification regeneration material of color mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The auxiliary agent is anti ultraviolet agent, and the anti ultraviolet agent is UV-327, is bought from Shanghai Aladdin biochemical technology share
Co., Ltd.
The high performance PE polymer is XP6026.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 11
Comparative example 11 provide it is a kind of for producing the modification regeneration material of black mulch film, it is by weight, black for producing
The raw material for preparing of the modification regeneration material of color mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 12
Comparative example 12 provide it is a kind of for producing the modification regeneration material of black mulch film, it is by weight, black for producing
The raw material for preparing of the modification regeneration material of color mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 13
Comparative example 13 provide it is a kind of for producing the modification regeneration material of black mulch film, it is by weight, black for producing
The raw material for preparing of the modification regeneration material of color mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Comparative example 14
Comparative example 14 provide it is a kind of for producing the modification regeneration material of black mulch film, it is by weight, black for producing
The raw material for preparing of the modification regeneration material of color mulch includes:
The linear low density polyethylene A is LL-1042 (melt flow rate (MFR) 1.0g/10min, density 0.918g/
cm3)。
The linear low density polyethylene B is LL-1002 (melt flow rate (MFR) 2.0g/10min, density 0.918g/
cm3)。
The high performance PE polymer is XP6026.
The auxiliary agent is antioxidant and anti ultraviolet agent.
Wherein the anti ultraviolet agent is the 23wt% of the auxiliary agent, and the anti ultraviolet agent is UV-327, purchase from Shanghai Ah
Latin biochemical technology limited liability company.
The preparation method of the antioxidant is the same as embodiment 5.
The preparation step for producing the modification regeneration material of black mulch film is the same as embodiment 1.
Performance evaluation
1. melt flow rate (MFR), Mechanics Performance Testing
Test sample prepares: by miniature injection machine, modified reworked material being molded into the following mechanical properties of measurement and is wanted
The standard dog bone standard batten and right-angle tearing standard batten asked.
Melt flow rate (MFR) is tested according to GB/T3682-2000 standard, in XNR-400C type melt flow rate instrument
Upper test, test temperature are 190 ± 0.5 DEG C, load 2160g.
Tensile strength and elongation at break are tested according to GB/T 1040.1-2006 standard.Angle tear strength is pressed
It is tested according to QB/T 1130-91 standard.
2. anti-aging property is tested
Using the ultraviolet accelerated aging tests case of QUV, to simulate heat, oxygen, ultraviolet light and humidity to polythene material performance
Influence.Experimental condition is air atmosphere, and each period includes 1h spray, 10h ultraviolet ageing (temperature is 50 DEG C), 8h condensation
(temperature is 45 DEG C).Ultraviolet light wave a length of 340nm, radiation intensity 1.19W/m.Ageing time is 360h, certain according to aging
The variation of stretching strength retentivity and elongation at break conservation rate after time carrys out the ageing resistance of comparative sample.It wherein stretches strong
Degree and elongation at break are tested using above-mentioned standard batten according to GB/T 1040.1-2006 standard.
1 melt flow rate (MFR) of table, Mechanics Performance Testing table
2 anti-aging property of table tests table
Claims (10)
1. a kind of for producing the modification regeneration material of black mulch film, which is characterized in that by weight, preparing raw material includes:
2. according to claim 1 for producing the modification regeneration material of black mulch film, which is characterized in that described linear low close
The melt flow rate (MFR) for spending polyethylene A is 0.5-1.2g/10min.
3. according to claim 1 for producing the modification regeneration material of black mulch film, which is characterized in that described linear low close
The relative density for spending polyethylene A is 0.91-0.92g/cm3。
4. according to claim 1 for producing the modification regeneration material of black mulch film, which is characterized in that described linear low close
The melt flow rate (MFR) for spending polyethylene B is 2-2.4g/10min.
5. according to claim 1 for producing the modification regeneration material of black mulch film, which is characterized in that described linear low close
The relative density for spending polyethylene B is 0.91-0.92g/cm3。
6. according to claim 1 for producing the modification regeneration material of black mulch film, which is characterized in that described linear low close
The weight ratio for spending polyethylene A and linear low density polyethylene B is 1-1.2:1.
7. according to claim 1 for producing the modification regeneration material of black mulch film, which is characterized in that the high performance PE
Polymer is XP6026.
8. according to claim 1 for producing the modification regeneration material of black mulch film, which is characterized in that by weight,
It is described for produce the raw material for preparing of the modification regeneration material of black mulch film to further include 1-2 parts of auxiliary agents；The auxiliary agent includes anti-oxidant
Agent.
9. according to claim 8 for producing the modification regeneration material of black mulch film, which is characterized in that the antioxidant
It is to be prepared by thiophenes, mercaptan, alkene for raw material.
10. for producing the preparation method of the modification regeneration material of black mulch film according to any one of claim 8-9,
It is characterized in that, step includes:
1) mulch is recycled into black polyethylene reworked material, linear low density polyethylene A, linear low density polyethylene B, high performance PE
Polymer, auxiliary agent, which are added in continuous internal mixer, to be kneaded；
2) mixing is transported to double screw extruder, first three area of extruder temperature controls between 200-260 DEG C, and the control of the area Hou Liang exists
Between 170-250 DEG C, the area Mo Ju is controlled between 190-150 DEG C, and fervent film Head Section control is between 180-220 DEG C；
3) by the material after extrusion by filter screen filtration, the filter screen mesh mesh of Shuo≤120 changes primary net for 3 hours, and every piece of net follows
Ring is with twice, and water cooling is cut later, and four knife water rings are cut, and finally dries wind and send storage.
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| CN201811139248.0A CN109337168A (en) | 2018-09-28 | 2018-09-28 | A kind of modification regeneration material and preparation method thereof for producing black mulch film |
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Application publication date: 20190215 |