CN117227287A - Dustproof plastic film for clothing articles and preparation method thereof - Google Patents
Dustproof plastic film for clothing articles and preparation method thereof Download PDFInfo
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- CN117227287A CN117227287A CN202311053291.6A CN202311053291A CN117227287A CN 117227287 A CN117227287 A CN 117227287A CN 202311053291 A CN202311053291 A CN 202311053291A CN 117227287 A CN117227287 A CN 117227287A
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- 239000002985 plastic film Substances 0.000 title claims abstract description 82
- 229920006255 plastic film Polymers 0.000 title claims abstract description 82
- 238000002360 preparation method Methods 0.000 title abstract description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000000428 dust Substances 0.000 claims abstract description 52
- 239000010410 layer Substances 0.000 claims abstract description 49
- 239000012792 core layer Substances 0.000 claims abstract description 44
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000002042 Silver nanowire Substances 0.000 claims abstract description 36
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 24
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 24
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000012793 heat-sealing layer Substances 0.000 claims abstract description 18
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 18
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims abstract description 10
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims description 62
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 35
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 33
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 33
- 239000000377 silicon dioxide Substances 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 24
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 14
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 235000019441 ethanol Nutrition 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 7
- 239000008103 glucose Substances 0.000 claims description 7
- 238000000967 suction filtration Methods 0.000 claims description 7
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 7
- DAMJCWMGELCIMI-UHFFFAOYSA-N benzyl n-(2-oxopyrrolidin-3-yl)carbamate Chemical compound C=1C=CC=CC=1COC(=O)NC1CCNC1=O DAMJCWMGELCIMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 238000009210 therapy by ultrasound Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 4
- 239000012300 argon atmosphere Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 238000000071 blow moulding Methods 0.000 claims description 3
- 239000004014 plasticizer Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 22
- 230000002209 hydrophobic effect Effects 0.000 abstract description 17
- 238000009825 accumulation Methods 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- 230000001965 increasing effect Effects 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 14
- 239000003575 carbonaceous material Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000002834 transmittance Methods 0.000 description 8
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 229910052787 antimony Inorganic materials 0.000 description 4
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
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- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- 238000005411 Van der Waals force Methods 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
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- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003075 superhydrophobic effect Effects 0.000 description 2
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical group CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 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 group 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 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 238000007664 blowing Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
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- 229910052731 fluorine Inorganic materials 0.000 description 1
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- 239000012528 membrane Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N n-hexene Natural products CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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- 238000003786 synthesis reaction Methods 0.000 description 1
- QSYYSIXGDAAPNN-UHFFFAOYSA-N trimethoxy(tridecyl)silane Chemical compound CCCCCCCCCCCCC[Si](OC)(OC)OC QSYYSIXGDAAPNN-UHFFFAOYSA-N 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The application relates to the technical field of high polymer materials, and particularly discloses a dustproof plastic film for clothing articles and a preparation method thereof. The dustproof plastic film for the clothing comprises a heat sealing layer, a first core layer, a second core layer and a corona layer which are sequentially connected; the heat sealing layer comprises 10-15 parts of MLLDPE, 70-80 parts of LDPE or LLDPE, 0.6-1.2 parts of slipping agent and 1-1.5 parts of opening agent; the first core layer comprises the following raw materials in parts by weight: 70-80 parts of LLDPE and 15-20 parts of LDPE; the second core layer comprises the following raw materials in parts by weight: 70-80 parts of LLDPE, 15-20 parts of LDPE and 1-3 parts of processing aid; the corona layer comprises the following raw materials in parts by weight: 80-95 parts of LLDPE, 8-10 parts of LDPE, 1-2 parts of processing aid, 3-7 parts of hydrophobically modified silica and 5-9 parts of silver nanowire. The dustproof plastic film for clothing has the advantages of antistatic surface, good hydrophobic and dustproof effects, and is not easy to cause dust accumulation.
Description
Technical Field
The application relates to the technical field of high polymer materials, in particular to a dustproof plastic film for clothing articles and a preparation method thereof.
Background
The high-grade clothing is sleeved in the dust cover when leaving the factory, so that dust is prevented from contaminating the clothing; in the laundry industry, dry-cleaned or water-washed garments are also fitted within dust covers. At present, a plurality of clothing dust covers are sewn with sewing threads, so that the production efficiency is affected, and in addition, the dust covers are made of plastic films, the bottoms of the dust covers are open, and a clothes hanging opening through which a hanger hook of a clothes hanger can extend is formed in the top of the dust covers.
In the prior art, the application number is CN201210068515.6, and a garment dust cover is disclosed, which comprises a first surface and a second surface which are identical in shape and are oppositely arranged, wherein the first surface is made of non-woven fabrics, the second surface is made of plastic films or non-woven fabrics, the top edge and the bottom edge of the garment dust cover are transparent, and the other edges are subjected to hot pressing to form a reinforced sealing edge with a certain width.
In view of the above-mentioned related art, the inventors found that the above-mentioned clothing dust cover is a double-layered yarn arrangement, and the non-woven fabric and the plastic film or the non-woven fabric are manufactured into the dust cover by hot pressing, although the clothing mildew phenomenon can be reduced under moist environment, when the plastic film or the non-woven fabric is used as the outer layer, dust drops on the plastic film or the non-woven fabric, and when the clothing is taken, the dust can adhere on hands, causing the hands to be polluted, and when the hands contact the clothing, the clothing can still be polluted.
Disclosure of Invention
In order to prevent dust accumulated on a dust cover from adhering to hands when taking clothes, and the cleanliness of the clothes is affected when the hands take the clothes, the application provides a dust-proof plastic film for clothing articles and a preparation method thereof.
In a first aspect, the application provides a dustproof plastic film for clothing, which adopts the following technical scheme:
a dustproof plastic film for clothing comprises a heat sealing layer, a first core layer, a second core layer and a corona layer which are sequentially connected;
the heat sealing layer comprises 10-15 parts of MLLDPE, 70-80 parts of LDPE or LLDPE, 0.6-1.2 parts of slipping agent and 1-1.5 parts of opening agent;
the first core layer comprises the following raw materials in parts by weight: 70-80 parts of LLDPE and 15-20 parts of LDPE;
the second core layer comprises the following raw materials in parts by weight: 70-80 parts of LLDPE, 15-20 parts of LDPE and 1-3 parts of processing aid;
the corona layer comprises the following raw materials in parts by weight: 80-95 parts of LLDPE, 8-10 parts of LDPE, 1-2 parts of processing aid, 3-7 parts of hydrophobically modified silica and 5-9 parts of silver nanowire.
By adopting the technical scheme, MLLDPE, LDPE or LLDPE, a slipping agent and a shedding agent are used as raw materials of a heat sealing layer, the MLLDPE is low-density polyethylene, has super-strong flexibility and wear resistance, cannot be broken due to continuous bending or severe deformation, has good dispersibility and processability, the LLDPE has high strength, good toughness and rigidity, the LDPE has low softening point, good flexibility, good impact toughness and good low temperature resistance, so that the heat sealing layer has good mechanical strength, the first core layer and the second core layer also have good flexibility and strength, the hydrophobically modified silica and silver nanowires are added into the corona layer, the silver nanowires are good conductors of electricity, have low resistivity and high conductivity, can guide out collected current, and therefore, the silver nanowires are mutually staggered in the corona layer and are scattered among the hydrophobically modified silica, the silver conductive network is formed, thereby reducing the surface resistivity of the corona layer, enhancing the antistatic effect of the corona layer, reducing the adhesion of dust, adding hydrophobic silica enables the surface energy of the corona layer to be reduced, presenting hydrophobic effect, reducing the acting force of the plastic film on the dust, so that the dust is easy to be removed and is not easy to adhere on the plastic film, therefore, when the clothes are taken, the dust cover made of the plastic film can not adhere dust on hands because of dust accumulation, thereby affecting the cleanliness of the clothes, and the addition of the hydrophobic modified silica enables the surface of the corona layer to be rough, enhancing the scattering effect of the optical fiber, thereby enabling the plastic film to have better light transmittance, besides the silver nanowire has excellent conductivity, due to the size effect of nanometer level, also has excellent light transmittance and flexing resistance, so that the transparency of the plastic film is enhanced, the clothing in the dust cover made of the plastic film can be better observed, and the clothing is convenient to take.
Optionally, the silver nanowires are pretreated by:
respectively adding crystalline tin chloride and antimony trichloride into absolute ethyl alcohol, then mixing and stirring for 30-40min, adding nano cerium oxide particles, heating to 200-210 ℃, reacting for 150-160min, and cooling to obtain a modified liquid;
and adding the silver nanowires into the modified liquid, circularly filtering and drying.
By adopting the technical scheme, the nano cerium oxide particles have superhydrophobic effect, and excellent ultraviolet absorption capability, so that the plastic film has superhydrophobic and ultraviolet resistance, after the crystalline tin chloride and the antimony trichloride are mixed, the antimony doped tin chloride ATO is prepared, and has the advantages of high transparency, good conductivity and stable chemical property, the antistatic effect of the plastic film can be improved.
Optionally, the mass ratio of the silver nanowires to the nano cerium oxide particles is 1:0.3-0.5.
By adopting the technical scheme, the silver nanowire is pretreated by the nano cerium oxide particles with the mass ratio, so that a proper amount of nano cerium oxide particles can be attached to the silver nanowire, the surface roughness of the silver nanowire is increased, the interfacial adhesion between the silver nanowire and the corona layer is improved, the scattering of light to the corona layer is improved, the transparency and the hydrophobic effect are improved, and the dust attachment is reduced.
Optionally, the mass ratio of Ce to Sn in the modified liquid is 1:0.1-0.3.
By adopting the technical scheme, the cerium and the tin with the mass ratio can form ATO on the nano cerium oxide particles in the ATO synthesis process, so that the transparency of the nano cerium oxide particles is enhanced, and the influence of the nano cerium oxide particles on the transparency of the plastic film is reduced.
Optionally, the hydrophobically modified silica is made by the following method:
adding 0.4-0.6 part of indium tin oxide into 3-3.5 parts of glucose solution, stirring uniformly, heating to 180-200 ℃ for reacting for 5-6 hours, centrifuging, washing, drying, grinding, heating to 800-850 ℃ in argon atmosphere, and preserving heat for 4.5-5 hours to obtain conductive particles;
dispersing the conductive particles in ethanol, adding 5-10 parts of mesoporous silica, uniformly carrying out ultrasonic treatment, and carrying out circulating suction filtration to obtain pretreated mesoporous silica;
adding the pretreated mesoporous silica into a mixed solution of 0.5-1 part of hexamethyldisilazane and 0.5-1 part of concentrated ammonia water, uniformly carrying out ultrasonic treatment, heating to 60-65 ℃, reacting for 20-24h, washing with ethanol, and drying to obtain the hydrophobically modified silica.
By adopting the technical scheme, the carbon material is used as the current common conductive filler, has important value in the aspect of endowing or improving the conductive performance of the material, glucose is formed into the carbon material after being subjected to high temperature, transparent and conductive indium tin oxide is used for improving the transparency of the carbon material, so that the influence of the addition of the carbon material on the transparency of a plastic film is reduced, conductive particles are prepared, then the conductive particles are loaded on mesoporous silica through cyclic suction filtration, the mesoporous silica has a conductive effect without great change of the transparency, finally the treated mesoporous silica is subjected to hydrophobic treatment by hexamethyldisilazane, so that the mesoporous silica and powder particles have smaller acting force, better dust prevention effect and self-cleaning property, and the mesoporous silica treated by hexamethyldisilazane has lower surface energy and equivalent surface roughness, so that the mesoporous silica and the dust particles have smaller van der waals force and better dust prevention effect.
Optionally, the density of the MLLDPE in the heat sealing layer is 0.923-0.95g/cm 3 The melt index is 1-2g/10min.
Through adopting above-mentioned technical scheme, the degree of entanglement between the molecular chain of the MLLDPE of above density and melt index is high, and the melt elasticity is bigger, therefore more stable when blowing the membrane, and easily form more even crystal nucleus, and the brilliant layer is thinner, have lower haze and better optical property, MLLDPE is 1-hexene copolymer in addition, have better branching homogeneity, melt faster when the heat-seal, the interface is easy to wet, initial heat-seal temperature is low, the entanglement ability of molecular chain section is stronger, heat-seal intensity is higher.
Optionally, the density of LDPE in the first core layer, the second core layer, the corona layer and the heat seal layer is 0.92-0.93g/cm 3 The melt index is 4-4.5g/10min.
By adopting the technical scheme, the LDPE has good flexibility, extensibility, transparency and cold resistance.
Optionally, the LLDPE density in the first core layer, the second core layer, the corona layer and the heat-seal layer is 0.92-0.925g/cm 3 The melt index is 2-4g/10min.
By adopting the technical scheme, LLDPE has strong longitudinal tensile fracture stress, a branch chain segment and a distance segment between chains, is easier to slide, and has good tear resistance and puncture resistance.
Optionally, the processing aid in the second core layer and the corona layer is selected from at least one of a plasticizer, an antioxidant and a compatibilizer.
In a second aspect, the application provides a preparation method of a dustproof plastic film for clothing, which adopts the following technical scheme:
a preparation method of a dustproof plastic film for clothing articles comprises the following steps:
respectively weighing raw materials according to the raw material proportions of the heat sealing layer, the first core layer, the second core layer and the corona layer, and respectively and uniformly mixing the raw materials to prepare a heat sealing layer blend, a first core layer blend, a second core layer blend and a corona layer blend;
heat-seal layer blend, first core layer blend, second core layer blend, and corona layer blend
Extruding, blow molding and corona to obtain the dustproof plastic film.
By adopting the technical scheme, all the raw materials are extruded and blow-molded after being mixed, the plastic film with good surface hydrophobicity, strong antistatic effect and high transparency is prepared, and the preparation method is simple and easy to realize industrial production.
In summary, the application has the following beneficial effects:
1. according to the application, the hydrophobic modified silicon dioxide and the silver nanowire are added into the corona layer, the roughness of the surface of the corona layer is increased by the hydrophobic modified silicon dioxide, and the contact area between dust particles and the surface of the plastic film is smaller, so that the van der Waals force between the dust particles and the surface of the plastic film is reduced, the corona layer can be rendered hydrophobic by the hydrophobic modified silicon dioxide, and the adhesion of dust can be reduced.
2. According to the application, ATO is preferably synthesized on the surfaces of the nano cerium oxide particles through crystallizing tin chloride and antimony trichloride, the ATO can improve the transparency of the nano cerium oxide particles on the surfaces of the nano cerium oxide particles, the influence of the nano cerium oxide particles on the transparency of a plastic film is reduced, the ATO and the nano cerium oxide have better conductivity, the antistatic effect of a corona layer is further improved, the adhesion of dust is reduced, in addition, the loads of the nano cerium oxide particles and the ATO on silver nanowires are increased, the surface roughness of the corona layer is increased, the adhesion of dust is reduced, the scattering of light is improved, and the transparency of the plastic film is enhanced.
3. In the application, the carbon material is preferably prepared by calcining glucose solution, and indium tin oxide is added to improve the transparency of the carbon material, so that the indium tin oxide has good transparency and strong electric conduction capability, and the carbon material and the conductive carbon material are used as conductive particles to be loaded on mesoporous silicon dioxide, so that the mesoporous silicon dioxide has antistatic effect, and hexamethyldisilazane is used for carrying out hydrophobic treatment on the mesoporous silicon dioxide, thereby increasing the hydrophobicity of the surface of the plastic film and reducing the dust adhesion.
Detailed Description
Preparation examples 1 to 6 of hydrophobically modified silica
Preparation example 1: (1) Adding 0.4kg of indium tin oxide into 3kg of glucose solution with the concentration of 1mol/l, stirring uniformly, heating to 180 ℃ for reaction for 6 hours, centrifuging, washing with water and ethanol alternately for 3 times, drying at 60 ℃, grinding, heating to 800 ℃ at the speed of 1 ℃/min, and preserving heat for 5 hours in an argon atmosphere to obtain conductive particles, wherein the particle size of the indium tin oxide is 30nm and is selected from Zhejiang Mann particle nanotechnology Co;
(2) Dispersing the obtained conductive particles in 10kg of ethanol, adding 5kg of mesoporous silica, carrying out ultrasonic homogenization, and carrying out circulating suction filtration for 6 times to obtain pretreated mesoporous silica, wherein the particle size of the mesoporous silica is 100nm, and the pretreated mesoporous silica is selected from Hangzhou New arbor biotechnology; (3) Adding the obtained pretreated mesoporous silica into a mixed solution of 0.5kg of hexamethyldisilazane and 0.5kg of concentrated ammonia water with the concentration of 25wt%, uniformly carrying out ultrasonic treatment, heating to 60 ℃, reacting for 24 hours, washing with ethanol, and drying to obtain the hydrophobic modified silica.
Preparation example 2: (1) Adding 0.6kg of indium tin oxide into 3.5kg of glucose solution with the concentration of 1mol/l, uniformly stirring, heating to 200 ℃ for reaction for 5 hours, centrifuging, alternately washing with water and ethanol for 3 times, drying at 60 ℃, grinding, heating to 850 ℃ at the speed of 2 ℃/min, and preserving heat for 4.5 hours under the argon atmosphere to obtain conductive particles, wherein the particle size of the indium tin oxide is 30nm and is selected from Zhejiang nanometer technologies Co;
(2) Dispersing the obtained conductive particles in 15kg of ethanol, adding 10kg of mesoporous silica, carrying out ultrasonic homogenization, and carrying out cyclic suction filtration for 8 times to obtain pretreated mesoporous silica, wherein the particle size of the mesoporous silica is 100nm, and the particle size is selected from the biological technologies of Hangzhou new arbor;
(3) Adding the obtained pretreated mesoporous silica into a mixed solution of 1kg of hexamethyldisilazane and 1kg of concentrated ammonia water with the concentration of 25wt%, uniformly carrying out ultrasonic treatment, heating to 65 ℃, reacting for 20h, washing with ethanol, and drying to obtain the hydrophobically modified silica.
Preparation example 3: the difference from preparation example 1 is that indium tin oxide was not added.
Preparation example 4: the difference from preparation example 1 is that step (1) was not performed, and indium tin oxide was used in the step (2) instead of the conductive particles in equal amounts.
Preparation example 5: the difference from preparation example 1 is that step (3) was not performed.
Preparation example 6: the difference from preparation 1 is that instead of hexamethyldisilazane, equal amounts of tridecyl-trimethyloxy silane are used
Examples
Example 1: a dustproof plastic film for clothing, with a thickness of 200 μm, comprises a heat sealing layer, a first core layer, a second core layer and a corona layer which are sequentially connected with each other with a thickness ratio of 1:1:1:1, wherein the raw materials of each layer are as shown in Table 1, and the density of LLDPE is 0.92g/cm 3 Melt index of 2g/10min, density of 0.92g/cm selected from the group consisting of Mao-Ming petrochemical DFDA-7042 and LDPE 3 A melt index of 4g/10min, selected from Japanese JPC LB625K, and an MLLDPE density of 0.923g/cm 3 The melt index is 1g/10min, the coating is selected from Exxon Mobil 1023CA, the slipping agent is 10090-K, the opening agent is AB-MB-09, the plasticizer is acetyl tributyl citrate, the antioxidant is antioxidant 1010, the hydrophobic modified silicon dioxide is selected from Shanghai Yuanjiang chemical industry Co., ltd, the product number is yj-700, the average particle size is 6-9 mu m, the silver nanowire is selected from Beijing island, the length is 30 mu m, and the model number is AgNW0020.
The preparation method of the dustproof plastic film for clothing articles comprises the following steps:
respectively weighing raw materials according to the raw material proportions of the heat sealing layer, the first core layer, the second core layer and the corona layer, and respectively and uniformly mixing the raw materials to prepare a heat sealing layer blend, a first core layer blend, a second core layer blend and a corona layer blend;
and (3) carrying out melt extrusion on the heat seal layer blend, the first core layer blend, the second core layer blend and the corona layer blend at 190 ℃, and carrying out traction inflation and corona on the film bubble to obtain the dustproof plastic film, wherein the traction speed is 30m/min and the inflation ratio is 2.
Table 1 raw material amounts of dustproof plastic films for clothing in examples 1 to 3
Examples 2-3: a dustproof plastic film for clothing is different from example 1 in that the raw material amounts are shown in Table 1.
Example 4: a dustproof plastic film for clothing, which is different from example 1 in that silver nanowires are pretreated as follows:
respectively adding crystalline tin chloride and antimony trichloride into 15kg of absolute ethyl alcohol, stirring for 30min, mixing and stirring for 30min, adding nano cerium oxide particles, heating to 200 ℃, reacting for 150min, and cooling to obtain a modified liquid, wherein the mass ratio of Ce to Sn in the nano cerium oxide particles is 1:0.3, and the particle size of the nano cerium oxide particles is 50nm, wherein the nano cerium oxide particles are selected from Shijia DongMing New Material science and technology Co;
and adding the silver nanowires into the modified liquid, carrying out cyclic suction filtration for 3 times, and drying at 60 ℃, wherein the mass ratio of the silver nanowires to the nano cerium oxide particles is 1:0.5.
Example 5: a dustproof plastic film for clothing, which is different from example 1 in that silver nanowires are pretreated as follows:
respectively adding crystalline tin chloride and antimony trichloride into 15kg of absolute ethyl alcohol, stirring for 40min, mixing and stirring for 40min, adding nano cerium oxide particles, heating to 210 ℃, reacting for 160min, and cooling to obtain a modified liquid, wherein the mass ratio of Ce to Sn in the nano cerium oxide particles is 1:0.1, and the particle size of the nano cerium oxide particles is 50nm, wherein the nano cerium oxide particles are selected from Shijia DongMing New material science and technology Co;
and adding the silver nanowires into the modified liquid, carrying out cyclic suction filtration for 3 times, and drying at 60 ℃, wherein the mass ratio of the silver nanowires to the nano cerium oxide particles is 1:0.3.
Example 6: a dustproof plastic film for clothing, which is different from example 4 in that nano cerium oxide particles are not added.
Example 7: a dustproof plastic film for clothing is different from example 4 in that the modified liquid is prepared by mixing nano cerium oxide particles and 15kg of absolute ethyl alcohol, silver nanowires are added into the modified liquid, the modified liquid is circularly filtered for 3 times, and the modified liquid is dried at 60 ℃, wherein the mass ratio of the silver nanowires to the nano cerium oxide particles is 1:0.3.
Example 8: a dustproof plastic film for clothing is different from example 4 in that hydrophobically modified silica is prepared from preparation example 1.
Example 9: a dustproof plastic film for clothing is different from example 4 in that hydrophobically modified silica is prepared from preparation 2.
Example 10: a dustproof plastic film for clothing is different from example 4 in that hydrophobically modified silica is prepared from preparation example 3.
Example 11: a dustproof plastic film for clothing is different from example 4 in that hydrophobically modified silica is prepared from preparation example 4.
Example 12: a dustproof plastic film for clothing is different from example 4 in that hydrophobically modified silica is prepared from preparation 5.
Example 13: a dustproof plastic film for clothing is different from example 4 in that hydrophobically modified silica is prepared from preparation 6.
Comparative example
Comparative example 1: a dustproof plastic film for clothing is different from example 1 in that hydrophobically modified silica is not added.
Comparative example 2: a dustproof plastic film for clothing is different from example 4 in that silica is not subjected to hydrophobic treatment.
Comparative example 3: a dustproof plastic film for clothing, which is different from example 4 in that silver nanowires are not added.
Comparative example 4: a plastic film with high waterproof performance is prepared from 90Kg of low-density polyethylene and 10Kg of high-density polyethylene through hot melting and blow molding, wherein the low-density polyethylene consists of 45Kg of low-density polyethylene 5301, 25Kg of low-density polyethylene 5310 and 20Kg of low-density polyethylene 221A, and the high-density polyethylene adopts HD5301AA.
Performance test the plastic films prepared in examples and comparative examples were tested for performance according to the following methods, and the test results are recorded in table 2.
1. Dustproof self-cleaning performance: uniformly spraying 0.5g of dust on the corona layer of the plastic film, standing for 5min vertically to remove the dust which is easy to fall off on the surface, and obtaining the dust quality (dust retention rate, g/m) of the dust which finally falls on the surface of the film in unit area 2 ) And the dust-proof performance is judged by the change.
2. Light transmission: the plastic film will be tested for light transmittance at 380-900nm by means of an ultraviolet-visible spectrophotometer, the test instrument being a type V-1000 (a third-process instrument (Shanghai) Inc.) visible spectrophotometer.
3. Contact angle: the water contact angle of the surface of the corona layer is tested by adopting 5 mu L of water drops, 5 different positions are randomly selected, the results are averaged, and the testing instrument is a CA-XP150 type contact angle analyzer.
4. Antistatic properties: the resistivity of the electric fish layer is measured by adopting a ZC36 high-insulation resistance measuring instrument, the plastic film manufactured by each example or comparative example is measured three times, the test results are averaged, and the test instrument is a ST2263 (Suzhou lattice electronic Co., ltd.) double-electric measurement digital four-probe tester.
TABLE 2 Performance test results of Plastic films
As can be seen from the data in examples 1-3 and Table 2, the plastic film prepared from the raw materials in examples 1-3 has a large contact angle on the surface, a high surface resistivity, a good dust adhesion preventing effect, a large light transmittance and a high transparency.
In examples 4 and 5, the silver nanowires were further pretreated with nano cerium oxide particles and antimony doped tin oxide, so that the transparency of the prepared plastic film was increased, the surface resistivity was reduced, the contact angle with water was increased, the antistatic effect was improved, and the dust adhesion was reduced, which indicates that the pretreated silver nanowires were capable of further improving the antistatic effect and the dust adhesion effect of the plastic film.
In example 6, no nano cerium oxide particles were added, and only antimony doped tin oxide was used to treat silver nanowires, and as shown in table 2, compared with example 4, the contact angle between the surface of the plastic film prepared in example 6 and water was reduced, dust retention rate was increased, and it was found that nano cerium oxide particles improved roughness of silver nanowires, increased hydrophobicity of corona layer, and reduced dust retention.
In example 7, the silver nanowires were pretreated with only nano cerium oxide particles, and antimony doped tin oxide was not synthesized, and the prepared plastic film had lower transparency, increased surface resistivity, reduced antistatic effect and reduced dust-proof effect compared with example 4.
Examples 8 and 9 the hydrophobically modified silica prepared in preparation examples 1 and 2, respectively, was used to slightly increase the contact angle of the surface of the plastic film prepared in examples 8 and 9 with water, but the resistivity was decreased, the light transmittance was increased, and the dust retention was decreased, compared with example 4, indicating that the hydrophobically modified silica obtained in preparation examples 1 and 2 could further improve the antistatic, hydrophobic, and dust adhesion preventing effects of the plastic film.
In example 10, when the hydrophobically modified silica prepared in preparation example 3 was used, and when the conductive particles were prepared as compared with preparation example 1, indium tin oxide was not added, it was found that the plastic film prepared in example 10 had an increased surface resistivity, a reduced antistatic effect, a reduced light transmittance, a reduced transparency, and an increased dust adhesion as compared with example 8.
Example 11 the hydrophobically modified silica prepared in preparation example 4, in which indium tin oxide was used as the conductive particles, the glucose solution was not sintered to form a carbon material, the plastic film prepared in example 12 had an increased surface resistivity and a reduced antistatic effect as compared with example 8,
in example 12, the pretreated mesoporous silica prepared in preparation example 5 was not subjected to the hydrophobic treatment, and the surface resistivity and transparency were not greatly changed as compared with example 8, but the contact angle with water was significantly reduced, and the dust adhesion amount was increased.
In example 13, the hydrophobically modified silica prepared in preparation example 6 was used, and tridecafluorooctyltrimethyloxysilane was used instead of hexamethyldisilazane, but although the hydrophobic effect was increased, the antistatic effect was decreased and the dust adhesion amount was increased, because electrostatic potential was present on the surface of the fluorine-based hydrophobicized mesoporous silica, the action on dust particles had a major effect, resulting in an increase in the force between the corona layer containing the hydrophobically modified silica and the powder particles, and therefore dust particles were easily accumulated on the surface of the plastic film and were difficult to be desorbed.
The hydrophobically modified silica was not added to comparative example 1, the unmodified silica was used in comparative example 2, the surface resistivity of comparative examples 1 and 2 was not changed much, but the contact angle with water was reduced, and the light transmittance was reduced in comparative example 1, and it was found that the dust-adhesion preventing effect of the plastic films prepared in comparative examples 1 and 2 was reduced.
In comparative example 3, no silver nanowire was added, and the surface resistivity of the plastic film was increased, the antistatic effect was reduced, and the light transmittance was reduced, compared with example 1, indicating that the addition of silver nanowire improved the antistatic effect, but reduced the transparency of the plastic film.
Comparative example 4 is a plastic film prepared in the prior art, which has poor antistatic effect, poor transparency and poor dust-attachment preventing effect.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (10)
1. The dustproof plastic film for the clothing is characterized by comprising a heat sealing layer, a first core layer, a second core layer and a corona layer which are connected in sequence;
the heat sealing layer comprises 10-15 parts of MLLDPE, 70-80 parts of LDPE or LLDPE, 0.6-1.2 parts of slipping agent and 1-1.5 parts of opening agent;
the first core layer comprises the following raw materials in parts by weight: 70-80 parts of LLDPE and 15-20 parts of LDPE;
the second core layer comprises the following raw materials in parts by weight: 70-80 parts of LLDPE, 15-20 parts of LDPE and 1-3 parts of processing aid;
the corona layer comprises the following raw materials in parts by weight: 80-95 parts of LLDPE, 8-10 parts of LDPE, 1-2 parts of processing aid, 3-7 parts of hydrophobically modified silica and 5-9 parts of silver nanowire.
2. The dustproof plastic film for clothing according to claim 1, wherein: the silver nanowires were pretreated as follows:
respectively adding crystalline tin chloride and antimony trichloride into absolute ethyl alcohol, then mixing and stirring for 30-40min, adding nano cerium oxide particles, heating to 200-210 ℃, reacting for 150-160min, and cooling to obtain a modified liquid;
and adding the silver nanowires into the modified liquid, circularly filtering and drying.
3. The dustproof plastic film for clothing according to claim 2, wherein the mass ratio of the silver nanowires to the nano cerium oxide particles is 1:0.3-0.5.
4. The dustproof plastic film for clothing according to claim 2, wherein the mass ratio of Ce to Sn in the modifying liquid is 1:0.1-0.3.
5. The dustproof plastic film for clothing according to claim 1, wherein the hydrophobically modified silica is prepared by the following method:
adding 0.4-0.6 part of indium tin oxide into 3-3.5 parts of glucose solution, stirring uniformly, heating to 180-200 ℃ for reacting for 5-6 hours, centrifuging, washing, drying, grinding, heating to 800-850 ℃ in argon atmosphere, and preserving heat for 4.5-5 hours to obtain conductive particles;
dispersing the conductive particles in ethanol, adding 5-10 parts of mesoporous silica, uniformly carrying out ultrasonic treatment, and carrying out circulating suction filtration to obtain pretreated mesoporous silica;
adding the pretreated mesoporous silica into a mixed solution of 0.5-1 part of hexamethyldisilazane and 0.5-1 part of concentrated ammonia water, uniformly carrying out ultrasonic treatment, heating to 60-65 ℃, reacting for 20-24h, washing with ethanol, and drying to obtain the hydrophobically modified silica.
6. The dustproof plastic film for clothing according to claim 1, wherein the density of MLLDPE in the heat-sealing layer is 0.923-0.95g/cm 3 The melt index is 1-2g/10min.
7. The dustproof plastic film for clothing according to claim 1, wherein the density of the LDPE in the first core layer, the second core layer, the corona layer and the heat-sealing layer is 0.92-0.93g/cm 3 The melt index is 4-4.5g/10min.
8. The dust control plastic film for clothing according to claim 1, wherein the density of LLDPE in said first core layer, second core layer, corona layer and heat seal layer is 0.92-0.925g/cm 3 The melt index is 2-4g/10min.
9. The dust plastic film for clothing according to claim 1, wherein the processing aid in the second core layer and the corona layer is at least one selected from the group consisting of plasticizers, antioxidants, and compatibilizers.
10. A method for producing a dustproof plastic film for clothing according to any one of claims 1 to 9, comprising the steps of:
respectively weighing raw materials according to the raw material proportions of the heat sealing layer, the first core layer, the second core layer and the corona layer, and respectively and uniformly mixing the raw materials to prepare a heat sealing layer blend, a first core layer blend, a second core layer blend and a corona layer blend;
heat-seal layer blend, first core layer blend, second core layer blend, and corona layer blend
Extruding, blow molding and corona to obtain the dustproof plastic film.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060199005A1 (en) * | 2003-04-24 | 2006-09-07 | Dai Nippon Painting Co., Ltd. | Electronic part taping packaging cover tape |
| CN113071178A (en) * | 2021-05-08 | 2021-07-06 | 江阴市格瑞包装材料有限公司 | Antistatic moisture-proof packaging film and preparation method thereof |
| CN115071236A (en) * | 2022-05-23 | 2022-09-20 | 青岛伟东包装有限公司 | Ultralow-temperature heat-sealing plastic film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060199005A1 (en) * | 2003-04-24 | 2006-09-07 | Dai Nippon Painting Co., Ltd. | Electronic part taping packaging cover tape |
| CN113071178A (en) * | 2021-05-08 | 2021-07-06 | 江阴市格瑞包装材料有限公司 | Antistatic moisture-proof packaging film and preparation method thereof |
| CN115071236A (en) * | 2022-05-23 | 2022-09-20 | 青岛伟东包装有限公司 | Ultralow-temperature heat-sealing plastic film and preparation method thereof |
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