CN114959993A - Wear-resistant woven bag and preparation method thereof - Google Patents
Wear-resistant woven bag and preparation method thereof Download PDFInfo
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- CN114959993A CN114959993A CN202210750688.XA CN202210750688A CN114959993A CN 114959993 A CN114959993 A CN 114959993A CN 202210750688 A CN202210750688 A CN 202210750688A CN 114959993 A CN114959993 A CN 114959993A
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- wear
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- resistant
- woven bag
- deionized water
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 22
- -1 polypropylene Polymers 0.000 claims abstract description 22
- 239000004743 Polypropylene Substances 0.000 claims abstract description 20
- 229920001155 polypropylene Polymers 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 16
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims abstract description 12
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 11
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims description 28
- 229910021641 deionized water Inorganic materials 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000000835 fiber Substances 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 238000005406 washing Methods 0.000 claims description 25
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 24
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 21
- 239000011258 core-shell material Substances 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 20
- 239000012065 filter cake Substances 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000005299 abrasion Methods 0.000 claims description 10
- 238000000967 suction filtration Methods 0.000 claims description 10
- 239000007822 coupling agent Substances 0.000 claims description 9
- 238000009958 sewing Methods 0.000 claims description 9
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 238000009941 weaving Methods 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims 2
- 238000003760 magnetic stirring Methods 0.000 claims 1
- 230000001376 precipitating effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000012768 molten material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 20
- 238000001125 extrusion Methods 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 239000004611 light stabiliser Substances 0.000 description 8
- 239000002250 absorbent Substances 0.000 description 6
- 230000002745 absorbent Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000008064 anhydrides Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012462 polypropylene substrate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/292—Conjugate, i.e. bi- or multicomponent, fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
- D01D5/426—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by cutting films
-
- 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
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/30—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
- D03D15/37—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments with specific cross-section or surface shape
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/58—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads characterised by the coefficients of friction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The invention relates to a wear-resistant woven bag and a preparation method thereof, belonging to the technical field of woven bags and comprising the following raw materials in parts by weight: 130 parts of polypropylene resin 110-one, 20-25 parts of linear low-density polyethylene, 5-10 parts of maleic anhydride grafted polypropylene, 13-16 parts of wear-resistant component, 1-3 parts of anti-aging agent, 1-2 parts of antioxidant and 2.5-3.5 parts of auxiliary agent; the method comprises the following steps: mixing the raw materials, plasticizing at 230-240 deg.C to obtain molten material, extruding to obtain film, cooling, cutting into blank wire, and drawing into flat wire to obtain wear-resistant flat wire; according to the invention, the wear-resistant component is added into the polypropylene base material, the wear-resistant component has the wear-resistant advantages of silicon carbide, graphene oxide and aluminum oxide, the dispersity is high, and the problem of poor wear resistance of the traditional woven bag can be solved.
Description
Technical Field
The invention belongs to the technical field of woven bag preparation, and particularly relates to a wear-resistant woven bag and a preparation method thereof.
Background
The woven bag is also called snake skin bag, is one kind of plastic and is used for packaging, and the raw material of the woven bag is various chemical plastic raw materials such as polyethylene, polypropylene and the like. The woven bag has wide application range, is mainly used for containing and packaging various articles, and has wide application in the industry. Because polyethylene is sensitive to environmental stress (chemical and mechanical effects) and poor in thermal aging resistance, woven bags are mostly prepared from polypropylene materials, the plastic woven bags prepared from polypropylene generally have poor toughness, are very sensitive to gaps, have high low-temperature brittleness and large molding shrinkage, and accordingly have poor tensile strength and wear resistance. Chemical modifications include copolymerization, grafting, crosslinking, chlorination, and the like. The surface effect, small-size effect and quantum tunnel effect of the nano-particle filler have high surface activity and large specific surface area, and the strength, toughness, rigidity and wear resistance of the polymer can be effectively improved after the polypropylene is filled in the nano-particle filler, but the existing wear-resistant woven bag adopts single inorganic filler and wear-resistant agent, cannot play a good wear-resistant reinforcing role, has poor compatibility among raw materials, has large interface defects among the inorganic filler, the wear-resistant agent and a polymeric matrix, and cannot effectively play a wear-resistant toughening role, so the technical problem to be solved at present is to provide a wear-resistant woven bag with high performance.
Disclosure of Invention
In order to solve the technical problems mentioned in the background technology, the invention provides a wear-resistant woven bag and a preparation method thereof.
The purpose of the invention can be realized by the following technical scheme:
a wear-resistant woven bag comprises the following raw materials in parts by weight: 130 parts of polypropylene resin 110-one, 20-25 parts of linear low-density polyethylene, 5-10 parts of maleic anhydride grafted polypropylene, 13-16 parts of wear-resistant component, 1-3 parts of anti-aging agent, 1-2 parts of antioxidant and 2.5-3.5 parts of auxiliary agent;
the wear-resistant woven bag is prepared by the following steps:
firstly, mixing polypropylene resin, linear low-density polyethylene, maleic anhydride grafted polypropylene, a wear-resistant component, an anti-aging agent, an antioxidant and an auxiliary agent, plasticizing at the temperature of 230-240 ℃ to form a molten state, extruding to form a film, cooling, cutting into a blank wire, and drawing into a flat wire to obtain the wear-resistant flat wire, wherein the traction speed of the extruded film is 3-4 times of the extrusion speed of a die opening when the film is extruded, the pressure is 8-10MPa, and the drawing magnification of the flat wire is 6-8 times;
and secondly, weaving the wear-resistant flat filaments according to the warp-weft density of 50-55 threads/100 mm, and then sewing at the sewing needle pitch of 9-10 needles/mm to obtain the woven bag.
Further, the wear resistant component is made by the steps of:
step S1, adding a coupling agent KH-560, absolute ethyl alcohol and deionized water into a round-bottom flask for mixing, adjusting the pH to 8-9 by using a sodium hydroxide solution with the mass fraction of 40%, magnetically stirring for 5-10min, adding silicon carbide fibers, heating to 60-65 ℃, stirring for reaction for 4-5h, after the reaction is finished, performing suction filtration, washing and drying a filter cake to obtain epoxidized silicon carbide fibers;
wherein the dosage ratio of KH-560, absolute ethyl alcohol, deionized water and silicon carbide fiber is 0.2-0.3 g: 35-40 mL: 4.2-5.1 mL: 4.3-5.4 g;
step S2, mixing the silicon carbide fiber, the core-shell particles and DMF, performing ultrasonic dispersion for 15-20min, adding potassium hydroxide, heating to 85-90 ℃, stirring for reaction for 4-6h, filtering after the reaction is finished, washing a filter cake with deionized water until a washing liquid is neutral, and drying to obtain a wear-resistant component;
wherein the dosage ratio of the epoxidized silicon carbide fiber to the core-shell particle to the DMF to the potassium hydroxide is 2.8-3.4 g: 0.9-1.2 g: 40-45 mL: 0.2-0.4 g.
Further, the core-shell particles are prepared by the following steps:
step X1, mixing nano spherical alumina, absolute ethyl alcohol and deionized water, adding acetic acid to adjust the pH value to 6, then adding a coupling agent KH-550, heating to 40-50 ℃, stirring to react for 6-8h, after the reaction is finished, performing suction filtration, washing and drying a filter cake to obtain aminated alumina, wherein the dosage ratio of the nano spherical alumina, the absolute ethyl alcohol, the deionized water to the KH-550 is 2.8-3.4 g: 48-52 mL: 3-5 mL: 0.2-0.3 g;
step X2, performing ultrasonic dispersion on aminated alumina in deionized water, adding a graphene oxide solution with the concentration of 3mg/mL, stirring and reacting for 4-6h at 55 ℃, centrifuging after the reaction is finished, washing precipitates with the deionized water for 3-5 times, and finally drying in an oven at 80 ℃ to constant weight to obtain core-shell particles, wherein the dosage ratio of the aminated alumina to the deionized water to the graphene oxide solution is 0.4-0.6 g: 20-25 mL: 10-15 mL.
In order to improve the wear resistance of polypropylene, a wear-resistant component is added into a polypropylene substrate, the wear-resistant component is silicon carbide fiber with surface loaded with core-shell particles, the silicon carbide fiber has the wear resistance advantages of silicon carbide, graphene oxide and aluminum oxide, and has good dispersibility in a polymer matrix 2 Forming a coating layer on the surface of nano-alumina by graphene oxide under the electrostatic interaction with-COOH on the surface of graphene oxide to obtain core-shell particles, treating the silicon carbide fiber by using a coupling agent KH-560 to make the surface of the silicon carbide fiber rich in epoxy groups, and then enabling the epoxy groups to perform ring-opening reaction with hydroxyl groups on the surface of the core-shell particles (hydroxyl groups on the surface of the graphene oxide) under an alkaline condition to connect the core-shell particles with the silicon carbide fiber in the form of chemical bonds to obtain a reinforcing component
Further, the anti-aging agent is prepared from an ultraviolet absorber and a light stabilizer according to the mass ratio of 1-1.5: 0.5-0.8, ultraviolet absorption is one of ultraviolet absorbent UV-561, ultraviolet absorbent UV-9 and ultraviolet absorbent UV-0, and light stabilizer is one of light stabilizer 744, light stabilizer 944 and light stabilizer 770.
Further, the antioxidant is one or more of antioxidant 1010, antioxidant 1076 and antioxidant 168, and is mixed according to any proportion.
Further, the auxiliary agent is a coupling agent KH-550, calcium carbonate and paraffin according to a mass ratio of 0.6-1: 0.8-1.2: 0.5-0.9.
The invention has the beneficial effects that:
the invention provides a wear-resistant woven bag, which is prepared by taking polypropylene as a base material and adding a wear-resistant component and a compound auxiliary additive, wherein the wear-resistant component is silicon carbide fiber loaded with core-shell particles on the surface, has the wear-resistant advantages of silicon carbide, graphene oxide and aluminum oxide, has good dispersibility in a polymer matrix, is formed by grafting spherical core-shell particles on the surface of the silicon carbide fiber by utilizing the characteristics of high strength and high toughness of the silicon carbide fiber, has a special ball structure, has good lubricity due to weak acting force between graphene oxide sheets on the shell structure of the core-shell particles and slippage between the sheets, and generates a smooth transfer film in the friction process of a composite material due to the existence of the graphene oxide when the composite material is subjected to external force friction, so that the wear-resistant performance of the composite material is enhanced, and the surface of the wear-resistant component contains active groups such as amino groups, hydroxyl groups and the like, the modified polypropylene material can chemically react with an anhydride group in maleic anhydride grafted polypropylene, so that a reinforcing component is anchored in a polypropylene matrix in a chemical bond form and serves as a hard filler, stress is effectively dispersed, crack generation is reduced, and the mechanical property of the composite material is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
This example provides a core-shell particle, which is prepared by the following steps:
step X1, mixing 2.8g of nano spherical alumina, 48mL of absolute ethyl alcohol and 3mL of deionized water, adding acetic acid to adjust the pH value to 6, then adding 0.2g of KH-550, heating to 40 ℃, stirring to react for 6 hours, after the reaction is finished, performing suction filtration, and washing and drying a filter cake to obtain aminated alumina;
and step X2, ultrasonically dispersing 0.4g of aminated alumina in 20mL of deionized water, adding 10mL of graphene oxide solution with the concentration of 3mg/mL, stirring and reacting for 4 hours at 55 ℃, centrifuging after the reaction is finished, washing the precipitate for 3 times by using the deionized water, and finally drying in an oven at 80 ℃ to constant weight to obtain the core-shell particles.
Example 2
This example provides a core-shell particle, which is prepared by the following steps:
step X1, mixing 3.4g of nano spherical alumina, 52mL of absolute ethyl alcohol and 5mL of deionized water, adding acetic acid to adjust the pH value to 6, then adding 0.3g of KH-550, heating to 50 ℃, stirring to react for 8 hours, after the reaction is finished, performing suction filtration, and washing and drying a filter cake to obtain aminated alumina;
and step X2, performing ultrasonic dispersion on 0.6g of aminated alumina in 25mL of deionized water, adding 15mL of graphene oxide solution with the concentration of 3mg/mL, stirring and reacting for 6 hours at 55 ℃, centrifuging after the reaction is finished, washing the precipitate for 5 times by using the deionized water, and finally drying in an oven at 80 ℃ to constant weight to obtain the core-shell particles.
Comparative example 1
This comparative example provides a modified alumina made by the steps of:
mixing 3.4g of nano spherical alumina, 52mL of anhydrous ethanol and 5mL of deionized water, adding acetic acid to adjust the pH value to 6, then adding 0.3g of KH-550, heating to 50 ℃, stirring to react for 8 hours, after the reaction is finished, performing suction filtration, and washing and drying a filter cake to obtain the modified alumina.
Comparative example 2
This comparative example is graphene oxide sold by Hangzhou gao alkene science and technology Co.
Example 3
This example provides a wear resistant composition made by the steps of:
step S1, adding 0.2g of KH-560, 35mL of absolute ethanol and 4.2mL of deionized water into a round-bottom flask for mixing, adjusting the pH to 8 by using a sodium hydroxide solution with the mass fraction of 40%, magnetically stirring for 5min, adding 4.3g of silicon carbide fiber, heating to 60 ℃, stirring for reaction for 4h, after the reaction is finished, performing suction filtration, washing and drying a filter cake, and thus obtaining epoxidized silicon carbide fiber;
and step S2, mixing 2.8g of epoxidized silicon carbide fiber, 0.9g of core-shell particles and 40mL of DMF, ultrasonically dispersing for 15min, adding 0.2g of potassium hydroxide, heating to 85 ℃, stirring for reacting for 4h, filtering after the reaction is finished, washing a filter cake with deionized water until a washing liquid is neutral, and drying to obtain the wear-resistant component.
Example 4
This example provides a wear resistant composition made by the steps of:
step S1, adding 0.3g of KH-560, 40mL of absolute ethanol and 5.1mL of deionized water into a round-bottom flask for mixing, adjusting the pH to 9 by using a sodium hydroxide solution with the mass fraction of 40%, magnetically stirring for 10min, adding 5.4g of silicon carbide fiber, heating to 65 ℃, stirring for reaction for 5h, after the reaction is finished, performing suction filtration, washing and drying a filter cake, and thus obtaining epoxidized silicon carbide fiber;
and step S2, mixing 3.4g of epoxidized silicon carbide fiber, 1.2g of core-shell particles and 45mL of DMF, performing ultrasonic dispersion for 20min, adding 0.4g of potassium hydroxide, heating to 90 ℃, stirring for reaction for 6h, filtering after the reaction is finished, washing a filter cake with deionized water until a washing liquid is neutral, and drying to obtain the wear-resistant component.
Comparative example 3
This comparative example provides an abrasion resistant component made by the steps of:
mixing 2.8g of epoxidized silicon carbide fiber, 0.9g of modified alumina of comparative example 1 and 40mL of DMF, carrying out ultrasonic dispersion for 15min, adding 0.2g of potassium hydroxide, heating to 85 ℃, stirring for reaction for 4h, filtering after the reaction is finished, washing a filter cake with deionized water until a washing solution is neutral, and drying to obtain the wear-resistant component.
Comparative example 4
This comparative example provides an abrasion resistant component made by the steps of:
mixing 3.4g of epoxidized silicon carbide fiber, 1.2g of graphene oxide of comparative example 2 and 45mL of DMF, performing ultrasonic dispersion for 20min, adding 0.4g of potassium hydroxide, heating to 90 ℃, stirring for reaction for 6h, filtering after the reaction is finished, washing a filter cake with deionized water until a washing solution is neutral, and drying to obtain the wear-resistant component.
Comparative example 5
This comparative example provides an abrasion resistant component made by the steps of:
adding 0.3g of KH-560, 40mL of absolute ethanol and 5.1mL of deionized water into a round-bottom flask, mixing, adjusting the pH to 9 by using a sodium hydroxide solution with the mass fraction of 40%, magnetically stirring for 10min, adding 5.4g of silicon carbide fiber, heating to 65 ℃, stirring for reaction for 5h, after the reaction is finished, carrying out suction filtration, and washing and drying a filter cake to obtain the wear-resistant component.
Example 5
A wear-resistant woven bag comprises the following raw materials in parts by weight: 110 parts of polypropylene resin, 20 parts of linear low-density polyethylene, 5 parts of maleic anhydride grafted polypropylene, 13 parts of wear-resistant component in example 3, 1 part of anti-aging agent, 1 part of antioxidant and 2.5 parts of auxiliary agent;
the wear-resistant woven bag is prepared by the following steps:
firstly, mixing polypropylene resin, linear low-density polyethylene, maleic anhydride grafted polypropylene, a wear-resistant component, an anti-aging agent, an antioxidant and an auxiliary agent, plasticizing at 230 ℃ to form a molten state, extruding to form a film, cooling, cutting to form a blank wire, and drawing to form a flat wire to obtain the wear-resistant flat wire, wherein the drawing speed of the extrusion film is 3 times of the extrusion speed of a die opening when the extrusion film is formed by extrusion, the pressure is 8Mpa, and the drawing ratio of the drawn flat wire is 6 times;
and secondly, weaving the wear-resistant flat filaments according to the warp-weft density of 50 threads/100 mm, and then sewing at the sewing needle pitch of 9 threads/mm to obtain the woven bag.
Wherein the anti-aging agent is prepared from an ultraviolet absorbent UV-561 and a light stabilizer 744 in a mass ratio of 1: 0.5, the antioxidant is antioxidant 1010, the auxiliary agent is coupling agent KH-550, calcium carbonate and paraffin according to the mass ratio of 0.6: 0.8: 0.5.
Example 6
A wear-resistant woven bag comprises the following raw materials in parts by weight: 120 parts of polypropylene resin, 22 parts of linear low-density polyethylene, 8 parts of maleic anhydride grafted polypropylene, 14 parts of wear-resistant component in example 4, 2 parts of anti-aging agent, 1.5 parts of antioxidant and 3 parts of auxiliary agent;
the wear-resistant woven bag is prepared by the following steps:
firstly, mixing polypropylene resin, linear low-density polyethylene, maleic anhydride grafted polypropylene, a wear-resistant component, an anti-aging agent, an antioxidant and an auxiliary agent, plasticizing at 240 ℃ to form a molten state, extruding to form a film, cooling, cutting to form a blank wire, and drawing to form a flat wire to obtain the wear-resistant flat wire, wherein the drawing speed of the extrusion film is 3 times of the extrusion speed of a die opening when the extrusion film is formed by extrusion, the pressure is 9MPa, and the drawing ratio of the drawn flat wire is 7 times;
and secondly, weaving the wear-resistant flat filaments according to 53 threads/100 mm warp-weft density, and then sewing at a sewing needle pitch of 9 needles/mm to obtain the woven bag.
Wherein the anti-aging agent is prepared from an ultraviolet absorbent UV-9 and a light stabilizer 944 according to a mass ratio of 1.3: 0.7, the antioxidant is antioxidant 1010, the auxiliary agent is coupling agent KH-550, calcium carbonate and paraffin according to the mass ratio of 0.8: 1.0: 0.8.
Example 7
A wear-resistant woven bag comprises the following raw materials in parts by weight: 130 parts of polypropylene resin, 25 parts of linear low-density polyethylene, 10 parts of maleic anhydride grafted polypropylene, 16 parts of wear-resistant component in example 4, 3 parts of anti-aging agent, 2 parts of antioxidant and 3.5 parts of auxiliary agent;
the wear-resistant woven bag is prepared by the following steps:
firstly, mixing polypropylene resin, linear low-density polyethylene, maleic anhydride grafted polypropylene, a wear-resistant component, an anti-aging agent, an antioxidant and an auxiliary agent, plasticizing at 240 ℃ to form a molten state, extruding to form a film, cooling, cutting to form a blank wire, and drawing to form a flat wire to obtain the wear-resistant flat wire, wherein the drawing speed of the extrusion film is 4 times of the extrusion speed of a die opening when the extrusion film is formed by extrusion, the pressure is 10Mpa, and the drawing ratio of the drawn flat wire is 8 times;
and secondly, weaving the wear-resistant flat filaments according to a warp-weft density of 55 threads/100 mm, and then sewing with a sewing needle pitch of 10 threads/mm to obtain the woven bag.
Wherein the anti-aging agent is prepared from an ultraviolet absorbent UV-0 and a light stabilizer 770 according to the mass ratio of 1.5: 0.8, wherein the antioxidant is an antioxidant 1076, the auxiliary agent is a coupling agent KH-550, calcium carbonate and paraffin according to a mass ratio of 1: 1.2: 0.9.
Comparative example 6
The abrasion resistant component of example 5 was replaced with the material of comparative example 3, and the remaining raw materials and preparation were the same as in example 5.
Comparative example 7
The abrasion resistant component of example 6 was replaced with the material of comparative example 4, and the remaining raw materials and preparation were the same as in example 6.
Comparative example 8
The attrition resistant component of example 7 was replaced with the material of comparative example 5 and the remaining raw materials and preparation were the same as in example 7.
The woven bags prepared in the examples 5-7 and the comparative examples 6-8 are tested, the maximum allowable loading quality and the maximum allowable tensile load are tested by referring to the industrial standard GB/T8946-2013 'Universal technical requirement for Plastic woven bags', and the abrasion loss is as follows: on an Amsler machine, each group of materials is detected, and the detection coefficients are as follows: grinding disc: ψ 122mm (ψ 0.4ft), rotation speed: 185r/min, hardness: 58-60HRC, surface roughness: ra 0.4um, abrasion time: 2h, load: 30 kg; the test results are shown in table 1:
TABLE 1
As can be seen from Table 1, the woven bags prepared in examples 6 to 8 have higher wear resistance and larger loading capacity than those of comparative examples 5 to 7, and therefore, the woven bags prepared in the invention have better mechanical properties and wear resistance.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (6)
1. A wear-resistant woven bag is characterized by comprising the following raw materials in parts by weight: 130 parts of polypropylene resin 110-one, 20-25 parts of linear low-density polyethylene, 5-10 parts of maleic anhydride grafted polypropylene, 13-16 parts of wear-resistant component, 1-3 parts of anti-aging agent, 1-2 parts of antioxidant and 2.5-3.5 parts of auxiliary agent;
the wear-resistant component is prepared by the following steps:
step S1, mixing a coupling agent KH-560, absolute ethyl alcohol and deionized water, adjusting the pH to 8-9, adding silicon carbide fiber after magnetic stirring, stirring and reacting for 4-5h at 60-65 ℃, performing suction filtration, washing and drying a filter cake to obtain epoxidized silicon carbide fiber;
and step S2, mixing the silicon carbide epoxy fiber, the core-shell particles and DMF, adding potassium hydroxide after ultrasonic dispersion, heating to 85-90 ℃, stirring for reaction for 4-6h, filtering, washing a filter cake, and drying to obtain the wear-resistant component.
2. A wear-resistant woven bag according to claim 1, wherein the ratio of the amount of KH-560, absolute ethyl alcohol, deionized water and silicon carbide fiber in step S1 is 0.2-0.3 g: 35-40 mL: 4.2-5.1 mL: 4.3-5.4 g.
3. The abrasion-resistant woven bag according to claim 1, wherein the amount ratio of the silicon carbide epoxy fibers, the core-shell particles, the DMF and the potassium hydroxide in step S2 is 2.8 to 3.4 g: 0.9-1.2 g: 40-45 mL: 0.2-0.4 g.
4. A wear-resistant woven bag according to claim 1, wherein the core-shell particles are prepared by the following steps:
step X1, mixing nano spherical alumina, absolute ethyl alcohol and deionized water, adding acetic acid to adjust the pH value to 6, adding a coupling agent KH-550, heating to 40-50 ℃, stirring to react for 6-8h, performing suction filtration, washing and drying a filter cake to obtain aminated alumina;
and step X2, ultrasonically dispersing the aminated alumina in deionized water, adding a graphene oxide solution with the concentration of 3mg/mL, stirring and reacting for 4-6h at 55 ℃, centrifuging, precipitating, washing and drying to obtain the core-shell particles.
5. The abrasion-resistant woven bag according to claim 4, wherein the dosage ratio of the nano spherical alumina, the absolute ethyl alcohol, the deionized water and the KH-550 in the step X1 is 2.8-3.4 g: 48-52 mL: 3-5 mL: 0.2-0.3g, wherein the dosage ratio of the aminated alumina, the deionized water and the graphene oxide solution in the step X2 is 0.4-0.6 g: 20-25 mL: 10-15 mL.
6. The preparation method of the abrasion-resistant woven bag according to claim 1, characterized by comprising the following steps:
firstly, mixing polypropylene resin, linear low-density polyethylene, maleic anhydride grafted polypropylene, a wear-resistant component, an anti-aging agent, an antioxidant and an auxiliary agent, plasticizing into a molten state at the temperature of 230-240 ℃, extruding into a film, cooling, cutting into a blank wire, and drawing into a flat wire to obtain a wear-resistant flat wire;
and secondly, weaving and sewing the wear-resistant flat filaments to obtain the woven bag.
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