CN114959993B - Wear-resistant woven bag and preparation method thereof - Google Patents
Wear-resistant woven bag and preparation method thereof Download PDFInfo
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- CN114959993B CN114959993B CN202210750688.XA CN202210750688A CN114959993B CN 114959993 B CN114959993 B CN 114959993B CN 202210750688 A CN202210750688 A CN 202210750688A CN 114959993 B CN114959993 B CN 114959993B
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- deionized water
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- 238000002360 preparation method Methods 0.000 title abstract description 9
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 28
- -1 polypropylene Polymers 0.000 claims abstract description 25
- 239000004743 Polypropylene Substances 0.000 claims abstract description 22
- 229920001155 polypropylene Polymers 0.000 claims abstract description 22
- 238000002156 mixing Methods 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 15
- 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
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 15
- 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
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 210000001161 mammalian embryo Anatomy 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 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 25
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 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 23
- 238000003756 stirring Methods 0.000 claims description 23
- 238000005406 washing Methods 0.000 claims description 22
- 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 19
- 238000005299 abrasion Methods 0.000 claims description 17
- 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
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000007822 coupling agent Substances 0.000 claims description 10
- 238000000967 suction filtration Methods 0.000 claims description 10
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 238000009941 weaving Methods 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 2
- 238000003760 magnetic stirring Methods 0.000 claims 1
- 238000009958 sewing Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 15
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 20
- 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
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000012188 paraffin wax 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
- 239000000203 mixture Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229940124543 ultraviolet light absorber Drugs 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000007385 chemical modification Methods 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 239000007788 liquid 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
- CHNMULGLNDIZQF-UHFFFAOYSA-N [O-2].N[Al+2] Chemical compound [O-2].N[Al+2] CHNMULGLNDIZQF-UHFFFAOYSA-N 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
- 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
- 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
- 239000006185 dispersion Substances 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002105 nanoparticle 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
- 230000003746 surface roughness Effects 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
- 230000005641 tunneling Effects 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, which belong to the technical field of woven bags and comprise the following raw materials in parts by weight: 110-130 parts of polypropylene resin, 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 into a molten state at 230-240 ℃, extruding into a film, cooling, cutting into embryo filaments, and drawing into flat filaments to obtain wear-resistant flat filaments; the wear-resistant flat wire is woven and stitched to obtain the woven bag, and the wear-resistant component is added into the polypropylene base material, so that the wear-resistant component has the wear-resistant advantages of silicon carbide, graphene oxide and aluminum oxide, has high dispersibility, and can overcome the problem of poor wear resistance of the traditional woven bag.
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 a snake skin bag, is one kind of plastic, and is used for packaging, and the raw materials of the woven bag are various chemical plastic raw materials such as polyethylene, polypropylene and the like. The woven bag has wide application, is mainly used for containing and packaging various articles, and has wide application in industry. Because polyethylene is very sensitive to environmental stress (chemical and mechanical actions) and poor in thermal aging resistance, a woven bag is prepared by adopting a polypropylene material, the plastic woven bag prepared by polypropylene is generally poor in toughness, very sensitive to a notch, large in low-temperature brittleness and large in molding shrinkage, so that the tensile strength and the wear resistance of the plastic woven bag are poor, and the method for improving the strength and the wear resistance of the polypropylene material, which is commonly adopted in the prior art, is to modify the polypropylene material, wherein the modification method comprises physical modification and chemical modification, and the physical modification mainly comprises blending modification, filling modification, composite enhancement, surface modification and the like. Chemical modification includes copolymerization, grafting, crosslinking, chlorination, and the like. The filling modification is one of the simplest and least cost methods, the surface effect, the small-size effect and the quantum tunneling effect of the nanoparticle filler have very 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, but the inorganic filler and the wear-resistant agent adopted by the existing wear-resistant woven bag are single in variety and cannot exert better wear-resistant reinforcing effect, the compatibility among the raw materials is poor, the interface defects among the inorganic filler, the wear-resistant agent and the polymeric matrix are larger, and the wear-resistant toughening effect cannot be effectively exerted.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a wear-resistant woven bag and a preparation method thereof.
The aim of the invention can be achieved by the following technical scheme:
the wear-resistant woven bag comprises the following raw materials in parts by weight: 110-130 parts of polypropylene resin, 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, an abrasion-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 embryo filaments, and drawing into flat filaments to obtain the abrasion-resistant flat filaments, wherein the drawing speed of the extruded film is 3-4 times of the extrusion speed of a die orifice when the film is extruded, the pressure is 8-10Mpa, and the drawing multiplying power of the drawn flat filaments is 6-8 times;
secondly, weaving the wear-resistant flat wires according to 50-55 filaments/100 mm warp and weft densities, and then stitching the wear-resistant flat wires with a stitching needle pitch of 9-10 needles/mm to obtain the woven bag.
Further, the wear-resistant component is made by the steps of:
s1, adding a coupling agent KH-560, absolute ethyl alcohol and deionized water into a round-bottom flask, 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 ℃ and stirring for reaction for 4-5h, after the reaction is finished, carrying out suction filtration, washing and drying a filter cake, and obtaining the epoxidized silicon carbide fibers;
wherein the dosage ratio of KH-560, absolute ethyl alcohol, deionized water and silicon carbide fiber is 0.2-0.3g:35-40mL:4.2-5.1mL:4.3-5.4g;
s2, mixing the epoxidized silicon carbide fibers, 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 solution is neutral, and drying to obtain an abrasion-resistant component;
wherein, the dosage ratio of the epoxidized silicon carbide fiber, the core-shell particles, the DMF and the potassium hydroxide is 2.8-3.4g:0.9-1.2g:40-45mL:0.2-0.4g.
Further, the core-shell particles are made by the steps of:
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 and reacting for 6-8h, after the reaction is finished, carrying out suction filtration, washing and drying a filter cake to obtain the aminated alumina, wherein the dosage ratio of the nano spherical alumina, the absolute ethyl alcohol, the deionized water and the KH-550 is 2.8-3.4g:48-52mL:3-5mL:0.2-0.3g;
step X2, performing ultrasonic dispersion on the aminated alumina in deionized water, adding graphene oxide solution with the concentration of 3mg/mL, stirring at 55 ℃ for 4-6 hours, centrifuging after the reaction is finished, washing the precipitate with deionized water for 3-5 times, and finally drying in an oven at 80 ℃ until the weight is constant to obtain core-shell particles, wherein the dosage ratio of the aminated alumina, the deionized water and the graphene oxide solution is 0.4-0.6g:20-25mL:10-15mL.
In order to improve the wear resistance of polypropylene, the wear-resistant component is added into a polypropylene base material, and is silicon carbide fiber with core-shell particles loaded on the surface, has the wear-resistant advantages of silicon carbide, graphene oxide and aluminum oxide, and has good dispersibility in a polymer matrix, the nano aluminum oxide is firstly treated by using a coupling agent KH-550 to make the surface rich in amino groups, and then the surface of the nano aluminum oxide is subjected to-NH (NH) -on the surface of the amino aluminum oxide 2 Electrostatic interaction with-COOH on the surface of graphene oxide to form a coating layer on the surface of nano alumina to obtain core-shell particles, treating silicon carbide fiber with a coupling agent KH-560 to make the surface of the silicon carbide fiber rich in epoxy groups, and then carrying out ring opening reaction on the epoxy groups and hydroxyl groups on the surface of the core-shell particles (hydroxyl groups on the surface of graphene oxide) under alkaline conditions to connect the core-shell particles with the silicon carbide fiber in a chemical bond form to obtain the reinforcing component
Further, the anti-aging agent consists of an ultraviolet absorber and a light stabilizer according to the mass ratio of 1-1.5:0.5-0.8, wherein the ultraviolet light absorption is one of an ultraviolet light absorber UV-561, an ultraviolet light absorber UV-9 and an ultraviolet light absorber UV-0, and the light stabilizer is one of a light stabilizer 744, a light stabilizer 944 and a 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 wax according to the 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 with core-shell particles loaded on the surface, has the wear-resistant advantages of silicon carbide, graphene oxide and aluminum oxide, has good dispersibility in a polymer matrix, utilizes the characteristics of high strength and high toughness of the silicon carbide fiber, grafts spherical core-shell particles on the surface to form a special ball structure, and has good lubricity because the interlayer acting force of graphene oxide sheets on the shell structure of the core-shell particles is weak, the sheets can slide, when the composite material is rubbed by external force, the graphene oxide exists, so that the composite material generates a smooth transfer film in the friction process, the wear-resistant performance of the composite material is enhanced, the surface of the wear-resistant component contains amino, hydroxyl and other active groups, and can generate chemical reaction with anhydride groups in maleic anhydride grafted polypropylene, so that the reinforcing component is anchored in the polypropylene matrix in a chemical bond form, and is used as a hard filler, the effective dispersion stress reduces the generation, and improves the mechanical crack performance of the composite material.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The embodiment 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 to 6, then adding 0.2g of KH-550, heating to 40 ℃, stirring and reacting for 6 hours, and after the reaction is finished, carrying out suction filtration, washing and drying a filter cake to obtain the aminated alumina;
and X2, performing ultrasonic dispersion on 0.4g of aminated alumina in 20mL of deionized water, adding 10mL of graphene oxide solution with the concentration of 3mg/mL, stirring at 55 ℃ for reaction for 4 hours, centrifuging after the reaction is finished, washing the precipitate with deionized water for 3 times, and finally drying in an oven at 80 ℃ to constant weight to obtain core-shell particles.
Example 2
The embodiment 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 to 6, then adding 0.3g of KH-550, heating to 50 ℃, stirring and reacting for 8 hours, and after the reaction is finished, carrying out suction filtration, washing and drying a filter cake to obtain the aminated alumina;
and 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 at 55 ℃ for reaction for 6 hours, centrifuging after the reaction is finished, washing the precipitate with deionized water for 5 times, and finally drying in an oven at 80 ℃ to constant weight to obtain core-shell particles.
Comparative example 1
This comparative example provides a modified alumina made by the steps of:
3.4g of nano spherical alumina, 52mL of absolute ethyl alcohol and 5mL of deionized water are mixed, acetic acid is added to adjust the pH to 6, then 0.3g of KH-550 is added, the temperature is raised to 50 ℃, the stirring reaction is carried out for 8 hours, after the reaction is finished, suction filtration is carried out, and a filter cake is washed and dried, thus obtaining the modified alumina.
Comparative example 2
This comparative example is graphene oxide sold by Hangzhou high-tech limited.
Example 3
The embodiment provides a wear-resistant component, which is prepared by the following steps:
s1, adding 0.2g KH-560, 35mL absolute ethyl alcohol and 4.2mL deionized water into a round-bottom flask, mixing, adjusting the pH to 8 by using a 40% sodium hydroxide solution by mass fraction, magnetically stirring for 5min, adding 4.3g silicon carbide fiber, heating to 60 ℃ and stirring for reaction for 4h, after the reaction is finished, carrying out suction filtration, washing and drying a filter cake, and obtaining the epoxidized silicon carbide fiber;
and S2, mixing 2.8g of the epoxidized silicon carbide fiber, 0.9g of core-shell particles and 40mL of DMF, performing ultrasonic dispersion for 15min, adding 0.2g of potassium hydroxide, heating to 85 ℃, stirring and reacting 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.
Example 4
The embodiment provides a wear-resistant component, which is prepared by the following steps:
s1, adding 0.3g KH-560, 40mL absolute ethyl alcohol and 5.1mL deionized water into a round-bottom flask, mixing, adjusting the pH to 9 by using a 40% sodium hydroxide solution by mass fraction, magnetically stirring for 10min, adding 5.4g silicon carbide fiber, heating to 65 ℃ and stirring for reacting for 5h, after the reaction is finished, carrying out suction filtration, washing and drying a filter cake, and obtaining the epoxidized silicon carbide fiber;
and S2, mixing 3.4g of the epoxidized silicon carbide fiber, 1.2g of the 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 solution is neutral, and drying to obtain the wear-resistant component.
Comparative example 3
The comparative example provides a wear resistant composition made by the steps of:
2.8g of the epoxidized silicon carbide fiber, 0.9g of the modified alumina of the comparative example 1 and 40mL of DMF are mixed, dispersed by ultrasonic for 15min, 0.2g of potassium hydroxide is added, the temperature is raised to 85 ℃, the reaction is stirred for 4h, after the reaction is finished, the filtration is carried out, the filter cake is washed by deionized water until the washing liquid is neutral, and the wear-resistant component is obtained by drying.
Comparative example 4
The comparative example provides a wear resistant composition made by the steps of:
3.4g of the epoxy silicon carbide fiber, 1.2g of the graphene oxide of the comparative example 2 and 45mL of DMF are mixed, ultrasonic dispersion is carried out for 20min, 0.4g of potassium hydroxide is added, the temperature is raised to 90 ℃, stirring reaction is carried out for 6h, after the reaction is finished, filtration is carried out, a filter cake is washed by deionized water until a washing liquid is neutral, and drying is carried out, thus obtaining the wear-resistant component.
Comparative example 5
The comparative example provides a wear resistant composition made by the steps of:
adding 0.3g KH-560, 40mL absolute ethyl alcohol and 5.1mL deionized water into a round-bottom flask, mixing, adjusting the pH to 9 by using a 40% sodium hydroxide solution by mass fraction, magnetically stirring for 10min, adding 5.4g silicon carbide fiber, heating to 65 ℃ and stirring for reaction for 5h, after the reaction is finished, carrying out suction filtration, washing and drying a filter cake, and obtaining the wear-resistant component.
Example 5
The 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 of 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, an abrasion-resistant component, an anti-aging agent, an antioxidant and an auxiliary agent, plasticizing into a molten state at the temperature of 230 ℃, extruding into a film, cooling, cutting into embryo filaments, and drawing into flat filaments to obtain the abrasion-resistant flat filaments, wherein the drawing speed of the extrusion film is 3 times that of a die orifice, the pressure is 8Mpa, and the drawing rate of the drawn flat filaments is 6 times when the abrasion-resistant flat filaments are extruded into the film;
and secondly, weaving the wear-resistant flat yarns according to 50 yarns/100 mm warp and weft densities, and then stitching the wear-resistant flat yarns with a stitching needle pitch of 9 needles/mm to obtain the woven bag.
Wherein, the anti-aging agent consists of an ultraviolet absorber UV-561 and a light stabilizer 744 according to the mass ratio of 1:0.5, wherein the antioxidant is antioxidant 1010, the auxiliary agent is coupling agent KH-550, calcium carbonate and paraffin wax according to the mass ratio of 0.6:0.8: 0.5.
Example 6
The 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 of 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, an abrasion-resistant component, an anti-aging agent, an antioxidant and an auxiliary agent, plasticizing into a molten state at the temperature of 240 ℃, extruding into a film, cooling, cutting into embryo filaments, and drawing into flat filaments to obtain the abrasion-resistant flat filaments, wherein the drawing speed of the extrusion film is 3 times that of a die orifice, the pressure is 9Mpa, and the drawing rate of the drawn flat filaments is 7 times;
and secondly, weaving the wear-resistant flat yarns according to the warp and weft densities of 53 yarns/100 mm, and then stitching the wear-resistant flat yarns with the stitching needle pitch of 9 needles/mm to obtain the woven bag.
Wherein, the anti-aging agent consists of an ultraviolet absorber UV-9 and a light stabilizer 944 according to the mass ratio of 1.3:0.7, wherein the antioxidant is antioxidant 1010, the auxiliary agent is coupling agent KH-550, calcium carbonate and paraffin wax according to the mass ratio of 0.8:1.0: 0.8.
Example 7
The 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 of 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, an abrasion-resistant component, an anti-aging agent, an antioxidant and an auxiliary agent, plasticizing into a molten state at the temperature of 240 ℃, extruding into a film, cooling, cutting into embryo filaments, and drawing into flat filaments to obtain the abrasion-resistant flat filaments, wherein the drawing speed of the extrusion film is 4 times of the extrusion speed of a die orifice, the pressure is 10Mpa, and the drawing rate of the drawn flat filaments is 8 times;
and secondly, weaving the wear-resistant flat yarns according to the warp and weft densities of 55 yarns/100 mm, and then stitching the wear-resistant flat yarns with a stitching needle pitch of 10 needles/mm to obtain the woven bag.
Wherein, the anti-aging agent consists of an ultraviolet absorber UV-0 and a light stabilizer 770 according to the mass ratio of 1.5:0.8, wherein the antioxidant is antioxidant 1076, the auxiliary agent is coupling agent KH-550, calcium carbonate and paraffin wax according to the 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 materials and preparation process were the same as those of example 5.
Comparative example 7
The abrasion resistant component of example 6 was replaced with the material of comparative example 4, and the remaining materials and preparation process were the same as those of example 6.
Comparative example 8
The abrasion resistant component of example 7 was replaced with the material of comparative example 5, and the remaining materials and preparation process were the same as those of example 7.
The woven bags prepared in examples 5-7 and comparative examples 6-8 were tested, and the maximum allowable loading quality and tensile load were tested with reference to industry standard GB/T8946-2013 general technical requirement for Plastic woven bags, abrasion loss: on an amsler machine, each group of materials was tested with the following coefficients: grinding disc: ψ122mm (ψ0.4 ft), rotational speed: 185r/min, hardness: 58-60HRC, surface roughness: ra=0.4 um, time to counter grinding: 2h, load: 30kg; 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 load than those of comparative examples 5 to 7, and thus, the woven bags prepared in the present invention have better mechanical properties and wear resistance.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (5)
1. The wear-resistant woven bag is characterized by comprising the following raw materials in parts by weight: 110-130 parts of polypropylene resin, 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 fibers after magnetic stirring, stirring at 60-65 ℃ for reaction for 4-5 hours, carrying out suction filtration, washing and drying a filter cake, and obtaining epoxidized silicon carbide fibers;
s2, mixing the epoxidized silicon carbide fibers, core-shell particles and DMF, adding potassium hydroxide after ultrasonic dispersion, heating to 85-90 ℃, stirring for reaction for 4-6 hours, filtering, washing a filter cake, and drying to obtain an abrasion-resistant component;
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 for reaction for 6-8h, carrying out suction filtration, washing and drying a filter cake, and obtaining the aminated alumina;
and X2, ultrasonically dispersing the aminated alumina in deionized water, adding graphene oxide solution with the concentration of 3mg/mL, stirring at 55 ℃ for reaction for 4-6 hours, centrifuging, washing the precipitate, and drying to obtain the core-shell particles.
2. The wear-resistant woven bag according to claim 1, wherein the dosage ratio of KH-560, absolute ethyl alcohol, deionized water and silicon carbide fiber in step S1 is 0.2-0.3g:35-40mL:4.2-5.1mL:4.3-5.4g.
3. The wear-resistant woven bag according to claim 1, wherein the epoxy silicon carbide fiber, the core-shell particles, the DMF and the potassium hydroxide are used in the amount ratio of 2.8-3.4g in the step S2: 0.9-1.2g:40-45mL:0.2-0.4g.
4. The wear-resistant woven bag according to claim 1, wherein the dosage ratio of nano spherical alumina, absolute ethyl alcohol, deionized water and KH-550 in the step X1 is 2.8-3.4g:48-52mL:3-5mL:0.2-0.3g, the dosage ratio of the aminated alumina, deionized water and graphene oxide solution in the step X2 is 0.4-0.6g:20-25mL:10-15mL.
5. The method for preparing the wear-resistant woven bag according to claim 1, comprising the following steps:
firstly, mixing polypropylene resin, linear low-density polyethylene, maleic anhydride grafted polypropylene, an abrasion-resistant component, an anti-aging agent, an antioxidant and an auxiliary agent, plasticizing into a molten state at 230-240 ℃, extruding into a film, cooling, cutting into embryo filaments, and drawing into flat filaments to obtain the abrasion-resistant flat filaments;
and secondly, weaving and sewing the wear-resistant flat yarns to obtain the woven bag.
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