CN113881204A - Full-biodegradable ground fabric and preparation method thereof - Google Patents
Full-biodegradable ground fabric and preparation method thereof Download PDFInfo
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- CN113881204A CN113881204A CN202111098796.5A CN202111098796A CN113881204A CN 113881204 A CN113881204 A CN 113881204A CN 202111098796 A CN202111098796 A CN 202111098796A CN 113881204 A CN113881204 A CN 113881204A
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- fully biodegradable
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- 239000004744 fabric Substances 0.000 title claims abstract description 94
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 238000004519 manufacturing process Methods 0.000 title description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 33
- 239000004626 polylactic acid Substances 0.000 claims abstract description 33
- 229920001577 copolymer Polymers 0.000 claims abstract description 25
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 23
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 22
- 239000007822 coupling agent Substances 0.000 claims abstract description 22
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 20
- 239000004014 plasticizer Substances 0.000 claims abstract description 18
- 239000004970 Chain extender Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 13
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 12
- 235000013539 calcium stearate Nutrition 0.000 claims description 12
- 239000008116 calcium stearate Substances 0.000 claims description 12
- 239000008187 granular material Substances 0.000 claims description 12
- 238000009940 knitting Methods 0.000 claims description 12
- 238000009941 weaving Methods 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 12
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 10
- 235000012424 soybean oil Nutrition 0.000 claims description 10
- 239000003549 soybean oil Substances 0.000 claims description 10
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 7
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 235000011187 glycerol Nutrition 0.000 claims description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 3
- 230000015556 catabolic process Effects 0.000 abstract description 13
- 238000006731 degradation reaction Methods 0.000 abstract description 13
- 230000032683 aging Effects 0.000 abstract description 11
- 241000196324 Embryophyta Species 0.000 abstract description 4
- 239000002689 soil Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- -1 polyethylene Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000002363 herbicidal effect Effects 0.000 description 5
- 244000025254 Cannabis sativa Species 0.000 description 4
- 239000004009 herbicide Substances 0.000 description 4
- 125000001905 inorganic group Chemical group 0.000 description 4
- 230000029553 photosynthesis Effects 0.000 description 4
- 238000010672 photosynthesis Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000009333 weeding Methods 0.000 description 4
- 238000006065 biodegradation reaction Methods 0.000 description 3
- UZBRNILSUGWULW-UHFFFAOYSA-N 3,8-dioxabicyclo[8.2.2]tetradeca-1(12),10,13-triene-2,9-dione;hexanedioic acid Chemical compound OC(=O)CCCCC(O)=O.O=C1OCCCCOC(=O)C2=CC=C1C=C2 UZBRNILSUGWULW-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001896 polybutyrate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2310/00—Masterbatches
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Biological Depolymerization Polymers (AREA)
- Woven Fabrics (AREA)
Abstract
The invention relates to a full-biodegradable ground fabric and a preparation method thereof, wherein the full-biodegradable ground fabric comprises the following components: 60-70% of polylactic acid; 0.1 to 0.9 percent of titanium dioxide; 0.5-1.5% of plasticizer; 0.05 to 0.15 percent of heat stabilizer; 0.05 to 0.15 percent of coupling agent; 0.2-1% of talcum powder; 0.1 to 0.3 percent of chain extender; 25-30% of adipic acid-terephthalic acid-butanediol ester copolymer; 4-6% of black master batch. The technical scheme of the invention has the advantages of high degradation rate of the degraded ground fabric, high degradation rate, difficult aging in use and good weed control performance.
Description
Technical Field
The invention relates to the technical field of degradable materials, in particular to a full-biodegradable ground fabric and a preparation method thereof.
Background
China has become a country with the largest coverage area and the largest variety of crops covered by the agricultural plastic ground cloth, and although the income of farmers is increased by the plastic ground cloth, the harm caused by the plastic ground cloth is obvious. Traditional plastics are laid, mostly are the high molecular polymer who uses polyethylene or polyvinyl chloride as the raw materials, and its goods are difficult for decomposing under natural condition, also can not degrade in last century in soil, through many years's accumulation use, plastics remain in the soil and cause soil hardening, lead to crops output decline and environmental pollution scheduling problem, and simultaneously plastics are laid and are aged easily under the illumination condition, and same kind of crop grows up before, need constantly change and lay the cloth, increases the cost in the crops production process.
Disclosure of Invention
The invention aims to provide a full-biodegradable ground fabric which has the advantages of high degradation rate, difficult aging in use and good weed control performance.
In order to achieve the purpose, the invention adopts the following technical scheme:
a full-biodegradable ground fabric is mainly prepared from the following components in percentage by mass: 60-70% of polylactic acid; 0.1 to 0.9 percent of titanium dioxide; 0.5-1.5% of plasticizer; 0.05 to 0.15 percent of heat stabilizer; 0.05 to 0.15 percent of coupling agent; 0.2-1% of talcum powder; 0.1 to 0.3 percent of chain extender; 25-30% of adipic acid-terephthalic acid-butanediol ester copolymer; 4-6% of black master batch.
Preferably, the plasticizer comprises one or more of epoxidized soybean oil, polyethylene glycol, glycerol.
Preferably, the heat stabilizer comprises one or two of calcium stearate and zinc stearate.
Preferably, the coupling agent is one or two of gamma-aminopropyltriethoxysilane and 3-aminopropyltrimethoxysilane.
Preferably, the composition is mainly prepared from the following components in percentage by mass: 63-67% of polylactic acid; 0.4 to 0.6 percent of titanium dioxide; 0.9 to 1.2 percent of plasticizer; 0.08 to 0.1 percent of heat stabilizer; 0.08 to 0.1 percent of coupling agent; 0.5 to 0.8 percent of talcum powder; 0.1 to 0.2 percent of chain extender; 26-29% of adipic acid-terephthalic acid-butanediol ester copolymer; 4-5% of black master batch.
The invention also provides a preparation method of the full-biodegradable ground fabric, which comprises the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules in a double-screw extruder;
s2, drawing the material obtained in the step S1 to obtain a blank wire, and drawing the blank wire to a preset drawing ratio to obtain a flat wire;
s3, weaving the flat wires to obtain the fully biodegradable ground fabric with the area density of a preset value.
Preferably, in S2, the material obtained in S1 is drawn in a drawing machine to obtain a blank filament, and the blank filament is sent to a drawing machine, and the drawing machine draws the blank filament by 6 to 7.5 times to obtain a flat filament.
Preferably, in S3, the flat wires are woven into cloth by a warp knitting machine to obtain an area density of 100-2The fully biodegradable ground fabric.
Compared with the prior art, the invention has the beneficial effects that:
according to the technical scheme, the fully biodegradable ground cloth is characterized in that 4-6% of black master batch in percentage by mass is added into the components for manufacturing the fully biodegradable ground cloth, under the condition of ensuring normal growth of crops, the photosynthesis of grass is reduced, the full biodegradable ground cloth has a physical weeding effect on the crops, and meanwhile, the compatibility problem of a chemical herbicide, an adipic acid-terephthalic acid-butanediol ester copolymer and polylactic acid and the pollution problem caused by the chemical herbicide remaining in soil can be avoided.
Meanwhile, 60-70% of polylactic acid and 25-30% of adipic acid-terephthalic acid-butanediol ester copolymer are added into the components of the fully biodegradable ground fabric, and the degradation performance of the fully biodegradable ground fabric meets the national standard of full biodegradation under the combined action of the two polymers, so that the degradation rate of the fully biodegradable ground fabric is more than 95% within 180 days, the degradation rate is high, and the degradation effect is good.
And the coupling agent with the mass percent of 0.05-0.15 percent is added into the components of the full-biodegradable ground fabric, organophilic groups in the coupling agent react with the polylactic acid and the adipic acid-terephthalic acid-butanediol ester copolymer, meanwhile, the coupling agent reacts with the plasticizer with the mass percent of 0.5-1.5 percent and the surface groups of the heat stabilizer with the mass percent of 0.05-0.15 percent, an interface layer is formed among the plasticizer, the heat stabilizer, the polylactic acid and the adipic acid-terephthalic acid-butanediol ester, the interface layer can transfer stress, the adhesive strength between the plasticizer and the heat stabilizer and the polylactic acid and the adipic acid-terephthalic acid-butanediol ester is enhanced, the full-biodegradable ground fabric has the fracture elongation of 270-350 percent, and other media can be prevented from permeating into the interface layer, the interface state is improved, the aging resistance is improved, the replacement frequency of the fully biodegradable ground cloth is reduced, and the cost is saved; because the heat stabilizer can eliminate substances with catalytic action on non-chain fracture, the aging resistance of the fully biodegradable ground fabric is further improved; the inorganic groups in the coupling agent act on the surface of 0.2 to 1 mass percent of talcum powder, so that the compatibility between the talcum powder and carrier particles is effectively improved, and the fully biodegradable ground fabric has the tensile strength of 25 to 40 MPa; the inorganic groups in the coupling agent act on 0.1-0.9% of titanium dioxide in percentage by mass, so that the effect of titanium dioxide on blocking ultraviolet rays is better, and the service life of the full-biodegradable ground fabric is prolonged.
Detailed Description
The present invention will be described in greater detail below, it being understood that the following description of the present invention is illustrative only and is not limiting. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
The embodiment of the invention provides a full-biodegradable ground fabric which comprises the following components: polylactic acid, titanium dioxide, a plasticizer, a heat stabilizer, a coupling agent, talcum powder, a chain extender, an adipic acid-terephthalic acid-butanediol ester copolymer and black master batch.
The mass percent of the polylactic acid is controlled to be 60-70%, the mass percent of the adipic acid-terephthalic acid-butanediol ester copolymer is controlled to be 25-30% (PBAT), the degradation performance of the fully biodegradable ground fabric meets the national standard of full biodegradation under the combined action of two polymers, after the fully biodegradable ground fabric is used, the fully biodegradable ground fabric is degraded in a soil piling mode, the biodegradability is obtained by taking the release amount of carbon dioxide and the water discharge amount as degradation indexes, the degradation rate of more than 95% can be achieved within 180 days of soil composting, the degradation rate is high, the degradation effect is good, degradation products can be recycled, and the energy is saved, and the environment is protected.
Wherein, the mass percent of the titanium dioxide is controlled to be 0.1-0.9%, and the inorganic group in the coupling agent acts on the titanium dioxide, so that the effect of the titanium dioxide on blocking ultraviolet rays is better, and the service life of the full-biodegradable ground fabric is prolonged.
Wherein the mass percent of the coupling agent is controlled to be 0.05-0.15%, the coupling agent is one or two of gamma-aminopropyltriethoxysilane and 3-aminopropyltrimethoxysilane, organophilic groups in the coupling agent react with polylactic acid and adipic acid-terephthalic acid-butanediol ester copolymer, meanwhile, the coupling agent reacts with 0.5-1.5% of plasticizer in mass percent and 0.05-0.15% of groups on the surface of a heat stabilizer in mass percent, an interface layer is formed among the plasticizer, the heat stabilizer, the polylactic acid and adipic acid-terephthalic acid-butanediol ester, the interface layer can transfer stress, the adhesive strength between the plasticizer and the heat stabilizer and the polylactic acid and adipic acid-terephthalic acid-butanediol ester is enhanced, and the full biodegradation has 270-350% elongation at break, and other media can be prevented from permeating the interface layer, the interface state is improved, the aging resistance is favorably improved, the replacement frequency of the fully biodegradable ground fabric is reduced, and the cost is saved.
In a preferred embodiment, the coupling agent is gamma-aminopropyltriethoxysilane, amino groups and ethoxy groups in the gamma-aminopropyltriethoxysilane have groups with different activities, so that the reaction with the polylactic acid and the adipic acid-terephthalic acid-butanediol ester copolymer is enhanced, the adhesive strength between the plasticizer and the heat stabilizer and between the polylactic acid and the adipic acid-terephthalic acid-butanediol ester copolymer is increased, and the gamma-aminopropyltriethoxysilane copolymer has better aging resistance.
When the content of the coupling agent is lower than 0.05 percent by mass, the stress transfer capacity of an interface layer formed among a plasticizer, a heat stabilizer, polylactic acid and adipic acid-butylene terephthalate is reduced, the adhesive strength between the plasticizer and the heat stabilizer and the polylactic acid and the adipic acid-butylene terephthalate is reduced, the breaking elongation of the fully biodegradable ground fabric is smaller, the capability of preventing other media from permeating into the interface layer is reduced, and the aging resistance is poorer; when the content of the coupling agent is higher than 0.15% by mass, the stress transfer capability of the interface layer is reduced, the same aging resistance is poorer, and the elongation at break is smaller.
The plasticizer is epoxidized soybean oil, and because epoxy groups on the epoxidized soybean oil can perform a ring-opening reaction with carboxyl groups on polylactic acid to form a high-viscosity polymer, the adhesive strength between the epoxidized soybean oil and the heat stabilizer and between the polylactic acid and the adipic acid-terephthalic acid-butanediol ester is enhanced, the epoxy soybean oil and the heat stabilizer have better elongation at break, and the interface state is better improved, so that the aging resistance is better.
Wherein, the mass percent of the heat stabilizer is controlled to be 0.05-0.15%, the heat stabilizer comprises one or two of calcium stearate and zinc stearate, the heat stabilizer can eliminate substances with catalytic action on non-chain fracture, and the aging resistance of the full-biodegradable ground fabric is further improved.
Wherein, the mass percent of the talcum powder is controlled to be 0.2-1%, and the inorganic group in the coupling agent acts on the surface of the talcum powder, so that the compatibility between the talcum powder and carrier particles is effectively improved, and the fully biodegradable ground fabric has the tensile strength of 25-40 MPa.
The mass percentage of the chain extender is controlled to be 0.1-0.3%, the chain extender reacts with functional groups on the polylactic acid and the adipic acid-terephthalic acid-butanediol ester copolymer, so that the molecular chain of the polylactic acid is expanded, the molecular weight is increased, and the mechanical property and the technological property of the fully biodegradable ground fabric can be improved.
The mass percentage of the black master batch is controlled to be 4-6%, the black master batch adopts the existing degradable master batch, the black master batch reduces the photosynthesis of grass under the condition of ensuring the normal growth of crops, plays a role in physical weeding on the crops, and can avoid the compatibility problem of using a chemical herbicide, an adipic acid-terephthalic acid-butanediol ester copolymer and polylactic acid and the pollution problem caused by the chemical herbicide remaining in soil; when the content of the black master batch is lower than 4 percent by mass, the light transmittance of the fully biodegradable ground cloth is improved, the photosynthesis of the grass is increased, and the weeding effect is poor; when the content of the black masterbatch is higher than 6% by mass, the cost is increased, but the blackness is not increased continuously due to the increase of the addition amount.
The service life of the full-biodegradable ground fabric can reach at least two years, the full-biodegradable ground fabric is matched with the growth cycle of seedlings, is not easy to age under illumination, has better aging resistance, can reduce photosynthesis of grass by covering black full-biodegradable ground fabric when the weeding capacity of the seedlings is weaker, helps gardens, orchards and the like weed, and can be degraded in a soil composting mode when the seedlings grow up and have the capacity of automatically removing weeds.
The invention also provides a preparation method of the full-biodegradable ground fabric, which comprises the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules through a double-screw extruder;
s2, drawing the material obtained in the step S1 in a drawing machine to obtain a blank wire, wherein the operation temperature of the drawing machine is 165-185 ℃, and sending the blank wire to a drawing machine, and the drawing machine draws the blank wire by 6-7.5 times to obtain a flat wire;
s3, weaving the flat wires into cloth by a warp knitting machine to obtain the surface density of 100-115g/m2The fully biodegradable ground fabric.
Example 1
The components for manufacturing the fully biodegradable ground fabric provided by the embodiment comprise, by mass, 65% of polylactic acid; 0.6 percent of titanium dioxide; 1.2 percent of epoxidized soybean oil; 0.1 percent of calcium stearate; 0.1 percent of gamma-aminopropyl triethoxysilane; 0.8 percent of talcum powder; 0.2% of chain extender; 28% of adipic acid-terephthalic acid-butylene glycol ester copolymer; 4 percent of black master batch.
The fully biodegradable ground fabric in the embodiment is prepared by the following preparation method, which comprises the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules through a double-screw extruder;
s2, drawing the material obtained in the step S1 in a drawing machine to obtain a blank wire, wherein the operation temperature of the drawing machine is 165 ℃, the blank wire is sent to a drawing machine, and the drawing machine draws the blank wire by 6 times to obtain a flat wire;
s3, weaving the flat wires into cloth by a warp knitting machine to obtain the surface density of 100g/m2The fully biodegradable ground fabric.
Example 2
The components for manufacturing the fully biodegradable ground fabric provided by the embodiment comprise, by mass, 61% of polylactic acid; 0.1 percent of titanium dioxide; 1.5 percent of polyethylene glycol; 0.1 percent of calcium stearate; 0.05 percent of zinc stearate; 0.15 percent of 3-aminopropyl trimethoxy silane; 1% of talcum powder; 0.1% of chain extender; 30% of adipic acid-terephthalic acid-butanediol ester copolymer; 6 percent of black master batch.
The fully biodegradable ground fabric in the embodiment is prepared by the following preparation method, which comprises the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules through a double-screw extruder;
s2, drawing the material obtained in the step S1 in a drawing machine to obtain a blank wire, wherein the operation temperature of the drawing machine is 185 ℃, the blank wire is sent to a drawing machine, and the drawing machine draws the blank wire by 7.5 times to obtain a flat wire;
s3, weaving the flat wires into cloth by a warp knitting machine to obtain the surface density of 110g/m2The fully biodegradable ground fabric.
Example 3
The components for manufacturing the fully biodegradable ground fabric provided by the embodiment comprise, by mass, 70% of polylactic acid; 0.1 percent of titanium dioxide; 0.5% of glycerin; 0.05 percent of calcium stearate; 0.05 percent of gamma-aminopropyl triethoxysilane; 0.2 percent of talcum powder; 0.1% of chain extender; 25% of adipic acid-terephthalic acid-butylene glycol ester copolymer; 4 percent of black master batch.
The fully biodegradable ground fabric in the embodiment is prepared by the following preparation method, which comprises the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules through a double-screw extruder;
s2, drawing the material obtained in the step S1 in a drawing machine to obtain a blank wire, wherein the operation temperature of the drawing machine is 170 ℃, and sending the blank wire to a drawing machine, wherein the drawing machine draws the blank wire by 7 times to obtain a flat wire;
s3, weaving the flat wires into cloth by a warp knitting machine to obtain the surface density of 115g/m2The fully biodegradable ground fabric.
Example 4
The components for manufacturing the fully biodegradable ground fabric provided by the embodiment comprise, by mass, 63% of polylactic acid; 0.8 percent of titanium dioxide; 1% of epoxidized soybean oil; 0.3 percent of polyethylene glycol; 0.05 percent of calcium stearate; 0.05 percent of gamma-aminopropyl triethoxysilane; 0.5 percent of talcum powder; 0.3 percent of chain extender; 29% of adipic acid-terephthalic acid-butylene glycol ester copolymer; 5 percent of black master batch.
The fully biodegradable ground fabric in the embodiment is prepared by the following preparation method, which comprises the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules through a double-screw extruder;
s2, drawing the material obtained in the step S1 in a drawing machine to obtain a blank wire, wherein the operation temperature of the drawing machine is 180 ℃, the blank wire is sent to a drawing machine, and the drawing machine draws the blank wire by 7 times to obtain a flat wire;
s3, weaving the flat wires into cloth by a warp knitting machine to obtain the surface density of 105g/m2The fully biodegradable ground fabric.
Example 5
The components for manufacturing the fully biodegradable ground fabric provided by the embodiment comprise 67% of polylactic acid by mass percent; 0.4 percent of titanium dioxide; 0.9% of glycerol; 0.08 percent of calcium stearate; 0.12 percent of 3-aminopropyl trimethoxy silane; 0.2 percent of talcum powder; 0.3 percent of chain extender; 26% of adipic acid-terephthalic acid-butylene glycol ester copolymer; 5 percent of black master batch.
The fully biodegradable ground fabric in the embodiment is prepared by the following preparation method, which comprises the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules through a double-screw extruder;
s2, drawing the material obtained in the step S1 in a drawing machine to obtain a blank wire, wherein the operation temperature of the drawing machine is 175 ℃, and the blank wire is sent to a drawing machine, and the drawing machine draws the blank wire by 6.5 times to obtain a flat wire;
s3, weaving the flat wires into cloth by a warp knitting machine to obtain the surface density of 110g/m2The fully biodegradable ground fabric.
Example 6
The components for manufacturing the fully biodegradable ground fabric provided by the embodiment comprise, by mass, 61% of polylactic acid; 0.8 percent of titanium dioxide; 0.8 percent of epoxidized soybean oil; 0.12 percent of calcium stearate; 0.08 percent of gamma-aminopropyl triethoxysilane; 0.9 percent of talcum powder; 0.3 percent of chain extender; 30% of adipic acid-terephthalic acid-butanediol ester copolymer; 6 percent of black master batch.
The fully biodegradable ground fabric in the embodiment is prepared by the following preparation method, which comprises the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules through a double-screw extruder;
s2, drawing the material obtained in the step S1 in a drawing machine to obtain a blank wire, wherein the operation temperature of the drawing machine is 180 ℃, the blank wire is sent to a drawing machine, and the drawing machine draws the blank wire by 6.5 times to obtain a flat wire;
s3, weaving the flat wires into cloth by a warp knitting machine to obtain the surface density of 108g/m2The fully biodegradable ground fabric.
Example 7
The components for manufacturing the fully biodegradable ground fabric provided by the embodiment comprise, by mass, 60% of polylactic acid; 0.9 percent of titanium dioxide; 1.5 percent of polyethylene glycol; 0.15 percent of calcium stearate; 0.15 percent of 3-aminopropyl trimethoxy silane; 1% of talcum powder; 0.3 percent of chain extender; 30% of adipic acid-terephthalic acid-butanediol ester copolymer; 6 percent of black master batch.
The fully biodegradable ground fabric in the embodiment is prepared by the following preparation method, which comprises the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules through a double-screw extruder;
s2, drawing the material obtained in the step S1 in a drawing machine to obtain a blank wire, wherein the operation temperature of the drawing machine is 178 ℃, the blank wire is sent to a drawing machine, and the drawing machine draws the blank wire by 6.5 times to obtain a flat wire;
s3, weaving the flat wires into cloth by a warp knitting machine to obtain the surface density of 105g/m2The fully biodegradable ground fabric.
Comparative example 1
The components for preparing the full-biodegradable ground fabric comprise 49 percent of polylactic acid by mass percent; 0.05 percent of titanium dioxide; 0.45 percent of epoxidized soybean oil; 0.03 percent of calcium stearate; 0.04% of gamma-aminopropyl triethoxysilane; 0.15 percent of talcum powder; 0.08 percent of chain extender; adipic acid-terephthalic acid-butylene glycol ester copolymer 43.2%; 7 percent of black master batch.
The fully biodegradable ground fabric in the comparative example is prepared by the following preparation method, comprising the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules through a double-screw extruder;
s2, drawing the material obtained in the step S1 in a drawing machine to obtain a blank wire, wherein the operation temperature of the drawing machine is 180 ℃, the blank wire is sent to a drawing machine, and the drawing machine draws the blank wire by 6.5 times to obtain a flat wire;
s3, weaving the flat wires into cloth by a warp knitting machine to obtain the surface density of 108g/m2The fully biodegradable ground fabric.
Comparative example 2
The components for preparing the full-biodegradable ground fabric comprise 80 percent of polylactic acid by mass percent; 1% of titanium dioxide; 2% of polyethylene glycol; 0.5 percent of calcium stearate; 0.5 percent of 3-aminopropyl trimethoxy silane; 1.5 percent of talcum powder; 0.5% of chain extender; 11% of adipic acid-terephthalic acid-butylene glycol ester copolymer; 3 percent of black master batch.
The fully biodegradable ground fabric in the comparative example is prepared by the following preparation method, comprising the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules through a double-screw extruder;
s2, drawing the material obtained in the step S1 in a drawing machine to obtain a blank wire, wherein the operation temperature of the drawing machine is 175 ℃, and the blank wire is sent to a drawing machine, and the drawing machine draws the blank wire by 6.5 times to obtain a flat wire;
s3, weaving the flat wires into cloth by a warp knitting machine to obtain the surface density of 110g/m2The fully biodegradable ground fabric.
The fully biodegradable ground fabrics of the above examples 1 to 7 and comparative examples 1 to 2 were subjected to performance tests, respectively, and the results are shown in the following table:
from the above test results, it can be seen that the fully biodegradable ground fabrics provided in the above examples 1 to 7 of the present application all have a high degradation rate, a long service life, are not easily aged even when used, have good herbicidal properties, and also have a high elongation at break and a good tensile strength.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (8)
1. The full-biodegradable ground fabric is characterized by mainly comprising the following components in percentage by mass: 60-70% of polylactic acid; 0.1 to 0.9 percent of titanium dioxide; 0.5-1.5% of plasticizer; 0.05 to 0.15 percent of heat stabilizer; 0.05 to 0.15 percent of coupling agent; 0.2-1% of talcum powder; 0.1 to 0.3 percent of chain extender; 25-30% of adipic acid-terephthalic acid-butanediol ester copolymer; 4-6% of black master batch.
2. The fully biodegradable ground fabric according to claim 1, wherein the plasticizer comprises one or more of epoxidized soybean oil, polyethylene glycol, and glycerin.
3. The fully biodegradable ground fabric according to claim 1, wherein the heat stabilizer comprises one or both of calcium stearate and zinc stearate.
4. The fully biodegradable ground fabric according to claim 1, characterized in that the coupling agent is one or both of gamma-aminopropyltriethoxysilane and 3-aminopropyltrimethoxysilane.
5. The fully biodegradable ground fabric according to claim 1, characterized by being mainly prepared from the following components in percentage by mass: 63-67% of polylactic acid; 0.4 to 0.6 percent of titanium dioxide; 0.9 to 1.2 percent of plasticizer; 0.08 to 0.1 percent of heat stabilizer; 0.08 to 0.1 percent of coupling agent; 0.5 to 0.8 percent of talcum powder; 0.1 to 0.2 percent of chain extender; 26-29% of adipic acid-terephthalic acid-butanediol ester copolymer; 4-5% of black master batch.
6. A method for preparing fully biodegradable ground fabric according to any one of claims 1 to 5, characterized by comprising the following steps:
s1, weighing the raw materials according to the mass percentage, mixing the raw materials and extruding the mixture into granules in a double-screw extruder;
s2, drawing the material obtained in the step S1 to obtain a blank wire, and drawing the blank wire to a preset drawing ratio to obtain a flat wire;
s3, weaving the flat wires to obtain the fully biodegradable ground fabric with the area density of a preset value.
7. The method for preparing fully biodegradable ground fabric according to claim 6, wherein in S2, the material obtained in S1 is drawn in a drawing machine to obtain a blank filament, and the blank filament is sent to a drawing machine, and the drawing machine draws the blank filament by 6-7.5 times to obtain a flat filament.
8. The method for preparing fully biodegradable ground fabric according to claim 6, wherein in S3, a plurality of flat yarns are woven into a fabric by a warp knitting machine to obtain an areal density of 100-115g/m2The fully biodegradable ground fabric.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175289A (en) * | 1994-12-22 | 1998-03-04 | 生物技术生物自然包装有限公司 | Technical and non-technical textile products and packaging materials |
| US20140303285A1 (en) * | 2011-07-29 | 2014-10-09 | Shanghai Zaihe Industrial Investment Co., Ltd. | Novel biodegradable master batch and preparation method thereof |
| CN106009561A (en) * | 2016-05-23 | 2016-10-12 | 威海两岸环保新材料科技有限公司 | Fully biodegradable weeding fabric and preparation method thereof |
| CN106519618A (en) * | 2016-11-23 | 2017-03-22 | 吉林中粮生化有限公司 | High-polylactic acid-content film and preparation method thereof |
| CN109796734A (en) * | 2019-01-29 | 2019-05-24 | 沈阳中博环保科技研发有限公司 | A kind of polylactic acid biodegradable composite material |
| CN112048162A (en) * | 2020-08-21 | 2020-12-08 | 江西格林美资源循环有限公司 | Full-biodegradable modified plastic for plastic-uptake thin-wall products and preparation method thereof |
-
2021
- 2021-09-18 CN CN202111098796.5A patent/CN113881204A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175289A (en) * | 1994-12-22 | 1998-03-04 | 生物技术生物自然包装有限公司 | Technical and non-technical textile products and packaging materials |
| US20140303285A1 (en) * | 2011-07-29 | 2014-10-09 | Shanghai Zaihe Industrial Investment Co., Ltd. | Novel biodegradable master batch and preparation method thereof |
| CN106009561A (en) * | 2016-05-23 | 2016-10-12 | 威海两岸环保新材料科技有限公司 | Fully biodegradable weeding fabric and preparation method thereof |
| CN106519618A (en) * | 2016-11-23 | 2017-03-22 | 吉林中粮生化有限公司 | High-polylactic acid-content film and preparation method thereof |
| CN109796734A (en) * | 2019-01-29 | 2019-05-24 | 沈阳中博环保科技研发有限公司 | A kind of polylactic acid biodegradable composite material |
| CN112048162A (en) * | 2020-08-21 | 2020-12-08 | 江西格林美资源循环有限公司 | Full-biodegradable modified plastic for plastic-uptake thin-wall products and preparation method thereof |
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Application publication date: 20220104 |