CN113882031A - Full-biodegradable snakegourd rope and preparation method thereof - Google Patents
Full-biodegradable snakegourd rope and preparation method thereof Download PDFInfo
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- CN113882031A CN113882031A CN202111098328.8A CN202111098328A CN113882031A CN 113882031 A CN113882031 A CN 113882031A CN 202111098328 A CN202111098328 A CN 202111098328A CN 113882031 A CN113882031 A CN 113882031A
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- 235000008326 Trichosanthes anguina Nutrition 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 240000006567 Trichosanthes anguina Species 0.000 title 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 37
- 239000004626 polylactic acid Substances 0.000 claims abstract description 37
- 244000078912 Trichosanthes cucumerina Species 0.000 claims abstract description 31
- 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 26
- 239000007822 coupling agent Substances 0.000 claims abstract description 25
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 25
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 23
- 239000004014 plasticizer Substances 0.000 claims abstract description 22
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 claims description 32
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 claims description 32
- 239000002994 raw material Substances 0.000 claims description 32
- 239000004595 color masterbatch Substances 0.000 claims description 25
- 238000005491 wire drawing Methods 0.000 claims description 25
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 239000004970 Chain extender Substances 0.000 claims description 17
- 229920001577 copolymer Polymers 0.000 claims description 17
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 14
- 239000008187 granular material Substances 0.000 claims description 14
- 238000009987 spinning Methods 0.000 claims description 14
- 238000005303 weighing Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 240000006023 Trichosanthes kirilowii Species 0.000 claims description 12
- 235000009818 Trichosanthes kirilowii Nutrition 0.000 claims description 12
- 235000012424 soybean oil Nutrition 0.000 claims description 11
- 239000003549 soybean oil Substances 0.000 claims description 11
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 10
- 235000013539 calcium stearate Nutrition 0.000 claims description 10
- 239000008116 calcium stearate Substances 0.000 claims description 10
- 239000002202 Polyethylene glycol Substances 0.000 claims description 9
- 229920001223 polyethylene glycol Polymers 0.000 claims description 9
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 7
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 244000241257 Cucumis melo Species 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 12
- 238000006731 degradation reaction Methods 0.000 abstract description 12
- 241000219112 Cucumis Species 0.000 description 31
- 239000000203 mixture Substances 0.000 description 11
- 230000032683 aging Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 125000001905 inorganic group Chemical group 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000006065 biodegradation reaction Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 230000007613 environmental effect Effects 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
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001896 polybutyrate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/12—Supports for plants; Trellis for strawberries or the like
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Biological Depolymerization Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a full-biodegradable snakegourd rope and a preparation method thereof, wherein the full-biodegradable snakegourd rope comprises the following components: 90-98 parts of polylactic acid; 0.1-1 part of titanium dioxide; 1-3 parts of a plasticizer; 0.01-0.1 part of heat stabilizer; 0.01-0.1 part of coupling agent; 0.5-2 parts of talcum powder. The technical scheme of the invention has the advantages of high degradation rate, high elongation at break, high tensile strength and high applicability.
Description
Technical Field
The invention relates to the technical field of degradable materials, in particular to a full-biodegradable melon lifting rope and a preparation method thereof.
Background
The melon lifting rope plays an important auxiliary role in the production of crops such as vegetables and the like, guides the upward growth of vegetable stems, vines and the like, and also plays a role in supporting and bearing, thereby playing roles in ventilating, transmitting light, increasing yield and facilitating picking.
However, in the related art, polyolefin hoisting ropes which are difficult to degrade are mostly adopted, and after the hoisting ropes are made of materials, plastic pollution and ecological hidden danger of agricultural environment can be caused, and agricultural sustainable development is influenced.
Disclosure of Invention
The invention aims to provide a full-biodegradable melon lifting rope which is high in degradation rate, high in elongation at break, high in tensile strength and high in applicability.
In order to achieve the purpose, the invention adopts the following technical scheme:
a full-biodegradable snakegourd rope is mainly prepared from the following components in parts by weight:
90-98 parts of polylactic acid;
0.1-1 part of titanium dioxide;
1-3 parts of a plasticizer;
0.01-0.1 part of heat stabilizer;
0.01-0.1 part of coupling agent;
0.5-2 parts of talcum powder;
0-4 parts of color 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 full-biodegradable trichosanthes kirilowii rope further comprises 0-4 parts by weight of color masterbatch
Preferably, the full-biodegradable trichosanthes kirilowii rope further comprises 0-6 parts of a chain extender and 0-6 parts of an adipic acid-terephthalic acid-butanediol ester copolymer.
Preferably, it is mainly made of the following components by weight: 94-97 parts of polylactic acid; 0.3-0.5 part of titanium dioxide; 1-2 parts of a plasticizer; 0.06-0.1 part of heat stabilizer; 0.06-0.1 part of coupling agent; 0.7-1.2 parts of talcum powder; 0-5 parts of a chain extender; 0-5 parts of adipic acid-terephthalic acid-butanediol ester copolymer; 2-4 parts of color master batch.
Preferably, it is mainly made of the following components by weight: 92 parts of polylactic acid; 0.5 part of titanium dioxide; 1.5 parts of a plasticizer; 0.1 part of heat stabilizer; 0.1 part of a coupling agent; 1 part of talcum powder; 0.4 part of a chain extender; 0.4 part of adipic acid-terephthalic acid-butanediol ester copolymer; and 4 parts of color master batch.
The invention also provides a preparation method of the full-biodegradable snakegourd rope, which comprises the following steps:
s1, weighing the raw materials according to the weight ratio, and mixing the raw materials in a double-screw extruder to extrude the mixture into granules;
s2, spinning the material obtained in the step S1 to obtain a primary spun yarn, and drafting the primary spun yarn to a preset drafting ratio to obtain a circular spun yarn with a preset diameter;
s3, stirring and twisting a plurality of the spun yarns to obtain the full-biodegradable melon lifting rope.
Preferably, in S2, the material obtained in S1 is spun in a drawing machine to obtain a preliminary spun yarn, and the preliminary spun yarn is sent to a drawing machine, and the drawing machine draws the preliminary spun yarn by 6 to 7 times to obtain a spun yarn with a preset diameter of 0.2 to 0.25 mm.
Compared with the prior art, the invention has the beneficial effects that:
the fully biodegradable melon lifting rope provided by the technical scheme is prepared from 90-98 parts by weight of polylactic acid; 0.1-1 part of titanium dioxide; 1-3 parts of a plasticizer; 0.01-0.1 part of heat stabilizer; 0.01-0.1 parts of coupling agent; 0.5-2 parts of talcum powder, the degradation performance meets the national standard of full biodegradation, the degradation rate of the full-biodegradation melon lifting rope can reach more than 95% within 180 days after the full-biodegradation melon lifting rope is used, the degradation rate is high, and the degradation effect is good.
0.01-0.1 part by weight of coupling agent is added into the components for manufacturing the full-biodegradable snakegourd rope, organophilic groups in the coupling agent react with 90-98 parts by weight of polylactic acid, and meanwhile, the coupling agent reacts with 1-3 parts by weight of plasticizer and 0.01-0.1 part by weight of groups on the surface of heat stabilizer to form an interface layer among the plasticizer, the heat stabilizer and the polylactic acid, the interface layer can transfer stress, the bonding strength among the plasticizer, the heat stabilizer and the polylactic acid is enhanced, so that the full-biodegradable snakegourd rope has 270-350% breaking elongation, other media can be prevented from permeating into the interface layer, the interface state is improved, the aging resistance is favorably improved, the short functional duration of the full-biodegradable snakegourd rope is prevented, and the normal production of agricultural products is influenced; the heat stabilizer can eliminate substances with catalytic action on non-chain fracture, so that the aging resistance is further improved; the hydrophilic inorganic group in the coupling agent acts on the surface of 0.5-2 parts by weight of talcum powder, so that the compatibility between the talcum powder and carrier particles is effectively improved, and the full-biodegradable melon lifting rope has the tensile strength of 25-40 MPa; the coupling agent has the beneficial inorganic groups acting on 0.1-1 part by weight of titanium dioxide, so that the effect of titanium dioxide on blocking ultraviolet rays is better, and the service life of the full-biodegradable melon lifting rope 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 melon lifting rope, which comprises the following components: polylactic acid, titanium dioxide, a plasticizer, a heat stabilizer, a coupling agent, talcum powder, color master, a chain extender and an adipic acid-terephthalic acid-butanediol ester copolymer.
The polylactic acid is controlled to be 90-98 parts by weight, has good biodegradability, can be completely degraded by microorganisms after being used, and finally generates carbon dioxide and water to avoid environmental pollution.
The full biodegradable furred melon rope degradation property satisfies full biodegradable national standard, and this full biodegradable furred melon rope finishes using the back, will full biodegradable furred melon rope is broken by the rubbing crusher, degrades through the mode of soil mound, obtains biodegradability for the degradability index with carbon dioxide release amount and water discharge, can reach the degradation rate that is greater than 95% in soil mound 180 days, has higher degradation rate, and degradation effect is good, and degradation product can cyclic utilization, energy-concerving and green.
The weight of the titanium dioxide is controlled to be 0.1-1 part, and the hydrophilic and inorganic groups in the coupling agent act on the titanium dioxide with the weight of 0.1-1 part, so that the effect of blocking ultraviolet rays by the titanium dioxide is better, the service life of the full-biodegradable melon lifting rope is prolonged, and the use requirement in the production of agricultural products is met.
Wherein the coupling agent comprises one or two of gamma-aminopropyltriethoxysilane and 3-aminopropyltrimethoxysilane, the coupling agent is controlled to be 0.01-0.1 part by weight, organophilic groups in the coupling agent react with 90-98 parts by weight of polylactic acid, and meanwhile, the coupling agent reacts with 1-3 parts by weight of plasticizer and 0.01-0.1 part by weight of groups on the surface of a heat stabilizer to form an interface layer among the plasticizer, the heat stabilizer and the polylactic acid, the interface layer can transfer stress, enhance the adhesive strength among the plasticizer, the heat stabilizer and the polylactic acid, enable the fully biodegradable lifting rope to have 270-350% elongation at break, prevent other media from permeating into the interface layer, improve the interface state, facilitate the improvement of aging resistance, and prevent the fully biodegradable lifting rope from having a too short duration, affecting the normal production of agricultural products.
As a preferable 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 polylactic acid is enhanced, the adhesion strength between a plasticizer and a heat stabilizer and the polylactic acid is increased, and the gamma-aminopropyltriethoxysilane has better aging resistance.
When the content of the coupling agent is lower than 0.01 part by weight, the stress transfer capability of an interface layer formed among the plasticizer, the heat stabilizer and the polylactic acid is reduced, the bonding strength among the plasticizer, the heat stabilizer and the polylactic acid is reduced, so that the breaking elongation of the full-biodegradable melon lifting rope 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 more than 0.1 part by weight, 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 comprises one or more of epoxidized soybean oil, polyethylene glycol and glycerol, and is controlled to be 1-3 parts by weight, as a preferred embodiment, the plasticizer is epoxidized soybean oil, and as 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 polylactic acid is enhanced, the epoxidized soybean oil and the polylactic acid have better elongation at break, and the interface state is better improved, so that the aging resistance is better.
Wherein, the heat stabilizer comprises one or two of calcium stearate and zinc stearate, the weight is controlled to be 0.01-0.1 part, and substances with catalytic action on non-chain fracture can be eliminated due to the heat stabilizer, so that the aging resistance is further improved.
Wherein, the talcum powder is controlled at 0.5-2 parts by weight, the talcum powder is a polylactic acid nucleating agent, the talcum powder surface interacts with the inorganic group in the coupling agent controlled at 0.01-0.1 part by weight, the compatibility between the talcum powder and carrier particles is effectively improved, and the full-biodegradable lifting melon rope has the tensile strength of 25-40 MPa.
As a preferred embodiment, the color master is controlled to be 0-4 parts by weight, the color master is a pigment, any color can be selected or not colored according to production requirements, the existing degradable color master is adopted as the color master, and as a preferred embodiment, the color master is selected to be green, so that the environmental compatibility of the full-biodegradable melon lifting rope is improved.
As a preferred embodiment, the weight of the chain extender is controlled to be 0-6 parts, and the chain extender reacts with the functional group on the polylactic acid, 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 full-biodegradable melon lifting rope can be improved.
As a preferable embodiment, the adipic acid-terephthalic acid-butylene terephthalate copolymer (PBAT) is controlled to be 0-6 parts by weight, and has better heat resistance and impact property and good biodegradability.
The invention also provides a preparation method of the full-biodegradable snakegourd rope, which comprises the following steps:
s1, weighing the raw materials according to the weight ratio, and mixing the raw materials in a double-screw extruder to extrude the raw materials into granules;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain an initial spun yarn, wherein the operation temperature of the wire drawing machine is 170-190 ℃; and sending the primary spun yarn into a drafting machine, wherein the drafting machine drafts the primary spun yarn by 6-7 times to obtain a round spun yarn with a preset diameter of 0.2-0.25mm, the tensile strength of the single spun yarn is 25-40MPa, and the elongation at break is 270-350%.
S3, mixing and twisting a plurality of the spun yarns to obtain the full-biodegradable melon lifting rope, twisting and twisting three spun yarns as a preferred embodiment, improving the stability of the full-biodegradable melon lifting rope, simplifying and easily operating the twisting process, and simultaneously saving raw materials needed by the spun yarns.
The fully biodegradable lifting rope provided by the present application will be further described with reference to the following examples.
Example 1
The preparation components of the fully biodegradable snakegourd rope provided by the embodiment comprise 92 parts by weight of polylactic acid; 0.5 part of titanium dioxide; 1.5 parts of epoxidized soybean oil; 0.1 part of calcium stearate; 0.1 part of gamma-aminopropyl triethoxysilane; 1 part of talcum powder; 0.4 part of a chain extender; 0.4 part of adipic acid-terephthalic acid-butanediol ester copolymer; 4 parts of color master batch, wherein the color master batch is green.
The fully-biodegradable snakegourd rope in the embodiment is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, mixing the raw materials, adding color master batch, and extruding the mixture into granules in a double-screw extruder;
and S2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 170 ℃, the primary spun yarn is sent to a drafting machine, and the drafting machine drafts the primary spun yarn by 7 times to obtain a circular spun yarn with a preset diameter of 0.2 mm.
S3, stirring, twisting and binding the three spun yarns to obtain the full-biodegradable melon lifting rope.
Example 2
The preparation components of the full-biodegradable snakegourd rope provided by the embodiment comprise 98 parts by weight of polylactic acid; 0.1 part of titanium dioxide; 1 part of polyethylene glycol; 0.01 part of zinc stearate; 0.01 part of 3-aminopropyltrimethoxysilane; 0.5 part of talcum powder; and 0.38 part of chain extender.
The fully-biodegradable snakegourd rope in the embodiment is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, and mixing the raw materials in a double-screw extruder to extrude the raw materials into granules;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 190 ℃; and sending the primary spun yarn to a drafting machine, and drafting the primary spun yarn by 6 times by the drafting machine to obtain a circular spun yarn with a preset diameter of 0.25 mm.
S3, stirring, twisting and binding the three spun yarns to obtain the full-biodegradable melon lifting rope.
Example 3
The preparation components of the fully biodegradable snakegourd rope provided by the embodiment comprise 91 parts by weight of polylactic acid; 1 part of titanium dioxide; 3 parts of glycerol; 0.05 part of zinc stearate; 0.02 part of gamma-aminopropyl triethoxysilane; 0.03 part of 3-aminopropyltrimethoxysilane; 2 parts of talcum powder; 0.5 part of a chain extender; 0.4 part of adipic acid-terephthalic acid-butanediol ester copolymer and 2 parts of color master batch, wherein the color master batch is yellow.
The fully-biodegradable snakegourd rope in the embodiment is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, mixing the raw materials, adding color master batch, and extruding the mixture into granules in a double-screw extruder;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 180 ℃; and sending the primary spun yarn to a drafting machine, and drafting the primary spun yarn by 6.5 times by the drafting machine to obtain a circular spun yarn with a preset diameter of 0.23 mm.
S3, stirring and twisting the two spun yarns to obtain the full-biodegradable melon lifting rope.
Example 4
The preparation components of the fully biodegradable snakegourd rope provided by the embodiment comprise 90 parts by weight of polylactic acid; 0.6 part of titanium dioxide; 1 part of epoxidized soybean oil; 1 part of polyethylene glycol; 0.04 part of calcium stearate; 0.06 part of zinc stearate; 0.1 part of gamma-aminopropyl triethoxysilane; 0.7 part of talcum powder; 6 parts of a chain extender; 0.2 part of adipic acid-terephthalic acid-butanediol ester copolymer and 0.3 part of color master batch, wherein the color master batch is green.
The fully-biodegradable snakegourd rope in the embodiment is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, mixing the raw materials, adding color master batch, and extruding the mixture into granules in a double-screw extruder;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 175 ℃; and sending the primary spun yarn to a drafting machine, and drafting the primary spun yarn by 6.5 times by the drafting machine to obtain a circular spun yarn with a preset diameter of 0.22 mm.
S3, stirring, twisting and binding the three spun yarns to obtain the full-biodegradable melon lifting rope.
Example 5
The preparation components of the fully biodegradable snakegourd rope provided by the embodiment comprise 90 parts by weight of polylactic acid; 0.6 part of titanium dioxide; 1 part of glycerol; 1 part of polyethylene glycol; 0.1 part of zinc stearate; 0.1 part of 3-aminopropyltrimethoxysilane; 0.7 part of talcum powder; 0.2 part of chain extender; 6 parts of adipic acid-terephthalic acid-butanediol ester copolymer and 0.3 part of color master batch, wherein the color master batch is green.
The fully-biodegradable snakegourd rope in the embodiment is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, mixing the raw materials, adding color master batch, and extruding the mixture into granules in a double-screw extruder;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 185 ℃; and sending the primary spun yarn to a drafting machine, and drafting the primary spun yarn by 7 times by the drafting machine to obtain a circular spun yarn with a preset diameter of 0.21 mm.
S3, stirring, twisting and binding the three spun yarns to obtain the full-biodegradable melon lifting rope.
Example 6
The preparation components of the fully biodegradable snakegourd rope provided by the embodiment comprise 94 parts by weight of polylactic acid; 0.3 part of titanium dioxide; 1 part of polyethylene glycol; 0.06 part of calcium stearate; 0.06 part of gamma-aminopropyl triethoxysilane; 1.2 parts of talcum powder; 2.38 parts of adipic acid-terephthalic acid-butanediol ester copolymer; 1 part of color master batch, wherein the color master batch is green.
The fully-biodegradable snakegourd rope in the embodiment is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, mixing the raw materials, adding color master batch, and extruding the mixture into granules in a double-screw extruder;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 180 ℃; and sending the primary spun yarn to a drafting machine, and drafting the primary spun yarn by 6.5 times by the drafting machine to obtain a circular spun yarn with a preset diameter of 0.23 mm.
S3, stirring, twisting and binding the three spun yarns to obtain the full-biodegradable melon lifting rope.
Example 7
The preparation components of the fully biodegradable snakegourd rope provided by the embodiment comprise 97 parts by weight of polylactic acid; 0.4 part of titanium dioxide; 1.6 parts of polyethylene glycol; 0.1 part of calcium stearate; 0.1 part of gamma-aminopropyl triethoxysilane; 0.8 part of talcum powder.
The fully-biodegradable snakegourd rope in the embodiment is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, mixing the raw materials, and extruding the mixture into granules in a double-screw extruder;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 180 ℃; and sending the primary spun yarn to a drafting machine, and drafting the primary spun yarn by 6 times by the drafting machine to obtain a circular spun yarn with a preset diameter of 0.25 mm.
S3, stirring, twisting and binding the three spun yarns to obtain the full-biodegradable melon lifting rope.
Example 8
The preparation components of the full-biodegradable trichosanthes kirilowii rope provided by the embodiment comprise 93 parts by weight of polylactic acid; 0.1 part of titanium dioxide; 1 part of epoxidized soybean oil; 0.01 part of calcium stearate; 0.01 part of gamma-aminopropyl triethoxysilane; 0.5 part of talcum powder; 0.38 part of chain extender; 5 parts of adipic acid-terephthalic acid-butanediol ester copolymer.
The fully-biodegradable snakegourd rope in the embodiment is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, mixing the raw materials, and extruding the mixture into granules in a double-screw extruder;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 185 ℃; and sending the primary spun yarn to a drafting machine, and drafting the primary spun yarn by 7 times by the drafting machine to obtain a circular spun yarn with a preset diameter of 0.21 mm.
S3, stirring, twisting and binding the three spun yarns to obtain the full-biodegradable melon lifting rope.
Example 9
The preparation components of the full-biodegradable trichosanthes kirilowii rope provided by the embodiment comprise 93 parts by weight of polylactic acid; 0.1 part of titanium dioxide; 1 part of glycerol; 0.01 part of calcium stearate; 0.01 part of 3-aminopropyltrimethoxysilane; 0.5 part of talcum powder; 5 parts of a chain extender; 0.38 parts of adipic acid-terephthalic acid-butanediol ester copolymer.
The fully-biodegradable snakegourd rope in the embodiment is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, mixing the raw materials, and extruding the mixture into granules in a double-screw extruder;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 190 ℃; and sending the primary spun yarn to a drafting machine, and drafting the primary spun yarn by 6.5 times by the drafting machine to obtain a circular spun yarn with a preset diameter of 0.23 mm.
S3, stirring, twisting and binding the three spun yarns to obtain the full-biodegradable melon lifting rope.
Comparative example 1
The preparation components of the full-biodegradable trichosanthes kirilowii rope provided by the comparative example comprise 80 parts by weight of polylactic acid; 0.05 part of titanium dioxide; 5 parts of epoxidized soybean oil; 1 part of gamma-aminopropyltriethoxysilane; 4 parts of talcum powder; 6 parts of a chain extender; 3.95 parts of adipic acid-terephthalic acid-butanediol ester copolymer.
The fully biodegradable snakegourd rope in the comparative example is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, mixing the raw materials, and extruding the mixture into granules in a double-screw extruder;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 185 ℃; and sending the primary spun yarn to a drafting machine, and drafting the primary spun yarn by 6 times by the drafting machine to obtain a circular spun yarn with a preset diameter of 0.24 mm.
S3, stirring, twisting and binding the three spun yarns to obtain the full-biodegradable melon lifting rope.
Comparative example 2
The components for manufacturing the full-biodegradable snakegourd rope comprise 98.5 parts by weight of polylactic acid; 1.1 parts of titanium dioxide; 0.1 part of polyethylene glycol; 0.11 part of calcium stearate; 0.11 part of gamma-aminopropyl triethoxysilane; 0.01 part of talcum powder; 0.03 part of adipic acid-terephthalic acid-butanediol ester copolymer; 0.04 part of color master batch, wherein the color master batch is green.
The fully biodegradable snakegourd rope in the comparative example is prepared by the following preparation method, and comprises the following steps:
s1, weighing the raw materials according to the weight ratio, mixing the raw materials, adding color master batch, and extruding the mixture into granules in a double-screw extruder;
s2, spinning the material obtained in the step S1 in a wire drawing machine to obtain a primary spun yarn, wherein the operating temperature of the wire drawing machine is 185 ℃; and sending the primary spun yarn to a drafting machine, and drafting the primary spun yarn by 7 times by the drafting machine to obtain a circular spun yarn with a preset diameter of 0.21 mm.
S3, stirring, twisting and binding the three spun yarns to obtain the full-biodegradable melon lifting rope.
The fully biodegradable lifting ropes in the above examples 1 to 9 and comparative examples 1 to 2 were subjected to performance tests, respectively, and the test results are shown in the following table:
from the test results, compared with the comparative example 1 and the comparative example 2, the fully biodegradable lifting rope provided in the embodiments 1 to 9 has higher breaking elongation, better tensile strength, higher degradation rate and higher degradation rate, avoids environmental pollution and realizes sustainable agricultural development.
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 (10)
1. The full-biodegradable trichosanthes kirilowii rope is characterized by mainly comprising the following components in parts by weight:
90-98 parts of polylactic acid;
0.1-1 part of titanium dioxide;
1-3 parts of a plasticizer;
0.01-0.1 part of heat stabilizer;
0.01-0.1 part of coupling agent;
0.5-2 parts of talcum powder.
2. The fully biodegradable trichosanthes kirilowii rope of claim 1, wherein the plasticizer comprises one or more of epoxidized soybean oil, polyethylene glycol, glycerol.
3. The fully biodegradable snakegourd rope of claim 1, wherein the heat stabilizer comprises one or both of calcium stearate and zinc stearate.
4. The fully biodegradable trichosanthes kirilowii rope of claim 1, wherein the coupling agent is one or two of gamma-aminopropyltriethoxysilane and 3-aminopropyltrimethoxysilane.
5. The fully biodegradable snakegourd rope of claim 1, further comprising 0-4 parts by weight of a color masterbatch.
6. The fully biodegradable snakegourd rope of claim 5, further comprising 0-6 parts by weight of a chain extender and 0-6 parts by weight of an adipic acid-terephthalic acid-butylene glycol copolymer.
7. The fully biodegradable trichosanthes kirilowii rope according to claim 6, characterized by being mainly prepared from the following components by weight: 94-97 parts of polylactic acid; 0.3-0.5 part of titanium dioxide; 1-2 parts of a plasticizer; 0.06-0.1 part of heat stabilizer; 0.06-0.1 part of coupling agent; 0.7-1.2 parts of talcum powder; 0-5 parts of a chain extender; 0-5 parts of adipic acid-terephthalic acid-butanediol ester copolymer; 2-4 parts of color master batch.
8. The fully biodegradable trichosanthes kirilowii rope according to claim 7, characterized by being mainly prepared from the following components by weight: 92 parts of polylactic acid; 0.5 part of titanium dioxide; 1.5 parts of a plasticizer; 0.1 part of heat stabilizer; 0.1 part of a coupling agent; 1 part of talcum powder; 0.4 part of a chain extender; 0.4 part of adipic acid-terephthalic acid-butanediol ester copolymer; and 4 parts of color master batch.
9. The preparation method of the full-biodegradable trichosanthes kirilowii rope according to any one of claims 1 to 8, characterized by comprising the following steps:
s1, weighing the raw materials according to the weight ratio, and mixing the raw materials in a double-screw extruder to extrude the raw materials into granules;
s2, spinning the material obtained in the step S1 to obtain a primary spun yarn, and drafting the primary spun yarn to a preset drafting ratio to obtain a circular spun yarn with a preset diameter;
s3, stirring and twisting a plurality of the spun yarns to obtain the full-biodegradable melon lifting rope.
10. The method for preparing the full-biodegradable trichosanthes kirilowii rope according to claim 9, wherein in S2, the material obtained in S1 is spun in a wire drawing machine to obtain a primary spun yarn, and the primary spun yarn is sent to a drawing machine, and the drawing machine draws the primary spun yarn by 6-7 times to obtain a spun yarn with a preset diameter of 0.2-0.25 mm.
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| CN102453319A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | Polylactic resin composition film and preparation method thereof |
| US20200255606A1 (en) * | 2016-01-13 | 2020-08-13 | Guangzhou Hairma Chemical (Gz) Ltd. | Plasticized Biodegradable Polyester Film and Preparation Method Thereof |
| CN107724135A (en) * | 2017-09-02 | 2018-02-23 | 润益（嘉兴）新材料有限公司 | A kind of acid fiber by polylactic food-grade binding rope |
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Application publication date: 20220104 |