CN113832725B - Multi-time hydrophilic non-woven fabric and preparation method thereof - Google Patents
Multi-time hydrophilic non-woven fabric and preparation method thereof Download PDFInfo
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- CN113832725B CN113832725B CN202111174771.9A CN202111174771A CN113832725B CN 113832725 B CN113832725 B CN 113832725B CN 202111174771 A CN202111174771 A CN 202111174771A CN 113832725 B CN113832725 B CN 113832725B
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 90
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000004743 Polypropylene Substances 0.000 claims abstract description 49
- -1 polypropylene Polymers 0.000 claims abstract description 49
- 229920001155 polypropylene Polymers 0.000 claims abstract description 49
- 239000002105 nanoparticle Substances 0.000 claims abstract description 20
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000178 monomer Substances 0.000 claims abstract description 18
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 17
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 17
- 229920002565 Polyethylene Glycol 400 Polymers 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000004900 Hydrophilic Finishing Agent Substances 0.000 claims description 50
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 36
- 238000001035 drying Methods 0.000 claims description 29
- 239000000243 solution Substances 0.000 claims description 29
- 238000003756 stirring Methods 0.000 claims description 28
- 238000001723 curing Methods 0.000 claims description 26
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 21
- 238000004132 cross linking Methods 0.000 claims description 21
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 20
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000008367 deionised water Substances 0.000 claims description 13
- 229910021641 deionized water Inorganic materials 0.000 claims description 13
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 12
- 239000011259 mixed solution Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 9
- 238000009830 intercalation Methods 0.000 claims description 7
- 230000002687 intercalation Effects 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000003848 UV Light-Curing Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 238000007781 pre-processing Methods 0.000 claims description 2
- JLFNLZLINWHATN-UHFFFAOYSA-N pentaethylene glycol Chemical compound OCCOCCOCCOCCOCCO JLFNLZLINWHATN-UHFFFAOYSA-N 0.000 claims 3
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 2
- 210000004243 sweat Anatomy 0.000 description 10
- 239000004744 fabric Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000011229 interlayer Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 210000000106 sweat gland Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/45—Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic Table; Aluminates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
- D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a multi-time hydrophilic non-woven fabric and a preparation method thereof, wherein the multi-time hydrophilic non-woven fabric comprises the following raw materials in parts by weight: 200-300 parts of polypropylene non-woven fabric, 80-100 parts of acrylic resin, 20-30 parts of hydrophilic monomer PEG (400) DA and 5-8 parts of alumina nano particles. The preparation method of the multi-time hydrophilic non-woven fabric is environment-friendly, simple and reliable in technological process, and the prepared multi-time hydrophilic non-woven fabric has good mechanical and hydrophilic moisture absorption properties.
Description
Technical Field
The invention relates to the technical field of non-woven fabrics, in particular to a multi-time hydrophilic non-woven fabric and a preparation method thereof.
Background
The woven fabric, also called nonwoven fabric, is composed of oriented or random fibers. It is called a cloth because of its appearance and certain properties. The non-woven fabric has the characteristics of ventilation, softness, light weight, no toxicity or irritation, rich colors, low price and the like. Thermal comfort is the most important reference index of the fabric in summer, and the thermal comfort mainly depends on the balance of energy exchange between the heat generated by the human body and the heat emitted to the environment, and the human body maintains the thermal balance of the body through the body temperature regulation mechanism of the human body, which is a necessary condition for maintaining normal life activities. The moisture loss on the skin surface of a human body is divided into gaseous sweat and liquid sweat, the gaseous sweat refers to the moisture evaporated from the skin surface of the human body at every moment, the conduction of the gaseous sweat mainly passes through pores of the fabric, the air permeability of the fabric is closely related to that of the fabric, the liquid sweat is the liquid sweat secreted by sweat glands of the human body when the external temperature is equal to or exceeds the skin temperature, especially when the external temperature is in severe exercise, the comfortable heat balance between the skin and the human body is broken, at the moment, the liquid sweat and the gaseous sweat exist simultaneously, and the fabric is required to quickly absorb the liquid sweat and the gaseous sweat emitted by the human body as soon as possible, so that the fabric is required to have good hydrophilic and hygroscopic properties. Accordingly, there is a need to provide a nonwoven fabric having good hydrophilic properties.
Disclosure of Invention
In view of the above, the invention aims to provide a multi-time hydrophilic non-woven fabric and a manufacturing method thereof, wherein the technical process is environment-friendly, simple and reliable, and has good mechanical and hydrophilic moisture absorption properties.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the multi-time hydrophilic non-woven fabric comprises the following raw materials in parts by weight: 200-300 parts of polypropylene non-woven fabric, 80-100 parts of acrylic resin, 20-30 parts of hydrophilic monomer PEG (400) DA and 5-8 parts of alumina nano particles.
Preferably, the feed comprises the following raw materials in parts by weight: 300 parts of polypropylene non-woven fabric, 100 parts of acrylic resin, 20 parts of hydrophilic monomer PEG (400) DA and 6 parts of alumina nano particles.
The invention also provides a preparation method of the multi-time hydrophilic non-woven fabric, which comprises the following steps:
s1, preprocessing polypropylene non-woven fabric, and preparing a hydrophilic finishing agent;
s2, performing secondary hydrophilic finishing on the pretreated polypropylene non-woven fabric, and performing heat drying treatment to obtain the hydrophilic non-woven fabric.
Preferably, the specific steps of the pretreatment of the polypropylene non-woven fabric are as follows: and (3) repeatedly soaking the polypropylene non-woven fabric in ethanol for 5 times, each time for 5 hours, repeatedly washing with deionized water for 5 times, and placing the non-woven fabric in an oven at the temperature of 60-80 ℃ after washing.
Preferably, the preparing a hydrophilic finish comprises preparing an intercalated hydrophilic finish and curing a crosslinked hydrophilic finish.
Preferably, the step S2 specifically includes: the pretreated polypropylene non-woven fabric is subjected to hydrophilic finishing through embedding hydrophilic finishing agent, is dried for 3min at the temperature of 60 ℃, is subjected to hydrophilic treatment again through curing cross-linked hydrophilic finishing agent, and is subjected to heat drying treatment to obtain the hydrophilic non-woven fabric.
Preferably, the preparation method of the intercalated hydrophilic finishing agent specifically comprises the following steps: completely dissolving 50 parts by weight of polyvinyl alcohol in deionized water at 80 ℃ under stirring, cooling to room temperature, then adding acetic acid solution with the volume fraction of 90%, glutaraldehyde, aluminum oxide nano particles and the polyvinyl alcohol solution, mixing, and uniformly stirring to obtain a nano mixed solution, wherein the acetic acid solution is prepared by the following steps: glutaraldehyde: the weight part ratio of the polyvinyl alcohol is (2-1): 1:1, a step of;
5-7 parts by weight of sodium dodecyl sulfate, 20 parts by weight of crushed polypropylene fibers and 10-20 parts by weight of H with the volume fraction of 20 percent 2 SO 4 Stirring the solution, adding the solution into the nano mixed solution, and stirring for 3-5min to obtain the intercalated hydrophilic finishing agent.
Preferably, the preparation method of the cured crosslinked hydrophilic finishing agent specifically comprises the following steps: mixing acrylic resin, hydrophilic monomer PEG (400) DA, 2-4 parts by weight of photoinitiator and 10 parts by weight of ethyl acetate, and stirring for 2min to obtain the cured cross-linked hydrophilic finishing agent.
Preferably, the heat-drying treatment includes a heat treatment followed by a UV-curing treatment.
Preferably, the heat treatment is specifically drying at 40 ℃ for 20min; the UV curing treatment is specifically curing and crosslinking for 25s under a UV lamp, wherein the wavelength is 256nm and the power is 4kw.
According to the invention, after the alumina nano particles are modified by the polyvinyl alcohol, the existence of the hydrophilic alumina nano particles in the form of small cluster aggregates is avoided, the dispersibility of the hydrophilic alumina nano particles is improved, the interfacial compatibility is obviously improved, the binding force among the particles is increased, meanwhile, the damping and the compatibility among the component materials of the intercalated hydrophilic finishing agent are improved, the storage modulus is improved, meanwhile, the hydrophilic alumina nano particles are loaded on the surface of the polypropylene fiber, the surface roughness of the polypropylene fiber is increased, the interfacial bonding strength of the polypropylene fiber loaded with the hydrophilic alumina nano particles and the polypropylene non-woven fabric is enhanced to a certain extent, so that the cross-linking intercalation among the interfaces can be realized, and the polypropylene non-woven fabric with stronger interlayer toughness and better hydrophilicity is formed; on the other hand, the interfacial interaction between the polypropylene fiber and the polypropylene non-woven fabric increases the crack deflection capability, further improves the interlayer fracture toughness of the composite board, and greatly increases the fracture strength and impact toughness of the non-woven fabric.
After the hydrophilic treatment of the embedded hydrophilic finishing agent, the hydrophilic treatment of the cured crosslinked hydrophilic finishing agent is performed, and the crosslinked embedded rough three-dimensional network structure formed by the polypropylene non-woven fabric embedded with the embedded hydrophilic finishing agent increases the interfacial binding force, so that the hydrophilic monomer and the resin in the cured crosslinked hydrophilic finishing agent are connected together, the hydrophilicity is improved, and the propagation path of the crack is deflected, so that the interlayer fracture toughness of the composite material is improved.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present invention, but 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. In addition, the raw materials and the equipment according to the present invention are commercially available, and are not specifically exemplified.
Embodiment one:
the multi-time hydrophilic non-woven fabric comprises the following raw materials in parts by weight: 300 parts of polypropylene non-woven fabric, 100 parts of acrylic resin, 20 parts of hydrophilic monomer PEG (400) DA and 6 parts of alumina nano particles.
A method for preparing a multi-time hydrophilic non-woven fabric, which comprises the following steps:
s1, pretreatment of polypropylene non-woven fabrics: repeatedly soaking polypropylene non-woven fabric in ethanol for 5 times, each time for 5 hours, repeatedly washing with deionized water for 5 times, cleaning, placing the non-woven fabric into an oven at 60-80 ℃, and drying for later use;
s2, immersing the pretreated polypropylene non-woven fabric into an intercalation hydrophilic finishing agent for hydrophilic finishing, drying at 60 ℃ for 3min, immersing the non-woven fabric into a curing cross-linked hydrophilic finishing agent for hydrophilic treatment again under the condition of shading, and drying at 40 ℃ for 20min after the hydrophilic treatment is completed; and after the drying is finished, curing and crosslinking for 25 seconds under a UV lamp, wherein the UV wavelength is 256nm, the power is 4kw, and the hydrophilic non-woven fabric is obtained after curing and crosslinking treatment.
The preparation method of the intercalated hydrophilic finishing agent specifically comprises the following steps: 50 parts by weight of polyvinyl alcohol are completely dissolved in deionized water at 80 ℃ under stirringCooling to room temperature, then adding acetic acid solution with the volume fraction of 90%, glutaraldehyde, alumina nano particles and polyvinyl alcohol solution, and uniformly stirring to obtain nano mixed solution, wherein the acetic acid solution is prepared by the steps of: glutaraldehyde: the weight portion ratio of the polyvinyl alcohol is 2:1:1, a step of; 6 parts by weight of sodium dodecyl sulfate, 20 parts by weight of crushed polypropylene fibers and 20 parts by weight of H with the volume fraction of 20 percent 2 SO 4 Stirring the solution, adding the solution into the nano mixed solution, and stirring for 3min to obtain the intercalated hydrophilic finishing agent.
The preparation method of the curing crosslinking hydrophilic finishing agent specifically comprises the following steps: mixing the acrylic resin, the hydrophilic monomer PEG (400) DA, the photoinitiator Irgacure184 and the ethyl acetate 10 parts by weight, and stirring for 2min to obtain the cured cross-linked hydrophilic finishing agent.
Embodiment two:
the multi-time hydrophilic non-woven fabric comprises the following raw materials in parts by weight: 200 parts of polypropylene non-woven fabric, 80 parts of acrylic resin, 25 parts of hydrophilic monomer PEG (400) DA and 5 parts of alumina nano particles.
A method for preparing a multi-time hydrophilic non-woven fabric, which comprises the following steps:
s1, pretreatment of polypropylene non-woven fabrics: repeatedly soaking polypropylene non-woven fabric in ethanol for 5 times, each time for 5 hours, repeatedly washing with deionized water for 5 times, cleaning, placing the non-woven fabric into an oven at 60-80 ℃, and drying for later use;
s2, immersing the pretreated polypropylene non-woven fabric into an intercalation hydrophilic finishing agent for hydrophilic finishing, drying at 60 ℃ for 3min, immersing the non-woven fabric into a curing cross-linked hydrophilic finishing agent for hydrophilic treatment again under the condition of shading, and drying at 40 ℃ for 20min after the hydrophilic treatment is completed; and after the drying is finished, curing and crosslinking for 25 seconds under a UV lamp, wherein the UV wavelength is 256nm, the power is 4kw, and the hydrophilic non-woven fabric is obtained after curing and crosslinking treatment.
The preparation method of the intercalated hydrophilic finishing agent specifically comprises the following steps: dissolving 50 parts by weight of polyvinyl alcohol in deionized water at 80 ℃ completely under stirring, cooling to room temperature, and then adding the polyvinyl alcohol with the volume fraction ofMixing 90% acetic acid solution, glutaraldehyde and alumina nano particles with polyvinyl alcohol solution, and uniformly stirring to obtain nano mixed solution, wherein the acetic acid solution is: glutaraldehyde: the weight portion ratio of the polyvinyl alcohol is 1:1:1, a step of; 5 parts by weight of sodium dodecyl sulfate, 20 parts by weight of crushed polypropylene fibers and 10 parts by weight of H with the volume fraction of 20 percent 2 SO 4 Stirring the solution, adding the solution into the nano mixed solution, and stirring for 5min to obtain the intercalated hydrophilic finishing agent.
The preparation method of the curing crosslinking hydrophilic finishing agent specifically comprises the following steps: mixing the acrylic resin, the hydrophilic monomer PEG (400) DA, the photoinitiator Irgacure184 and the ethyl acetate 10 parts by weight, and stirring for 2min to obtain the cured cross-linked hydrophilic finishing agent.
Embodiment III:
the multi-time hydrophilic non-woven fabric comprises the following raw materials in parts by weight: 250 parts of polypropylene non-woven fabric, 90 parts of acrylic resin, 30 parts of hydrophilic monomer PEG (400) DA and 8 parts of alumina nano particles.
A method for preparing a multi-time hydrophilic non-woven fabric, which comprises the following steps:
s1, pretreatment of polypropylene non-woven fabrics: repeatedly soaking polypropylene non-woven fabric in ethanol for 5 times, each time for 5 hours, repeatedly washing with deionized water for 5 times, cleaning, placing the non-woven fabric into an oven at 60-80 ℃, and drying for later use;
s2, immersing the pretreated polypropylene non-woven fabric into an intercalation hydrophilic finishing agent for hydrophilic finishing, drying at 60 ℃ for 3min, immersing the non-woven fabric into a curing cross-linked hydrophilic finishing agent for hydrophilic treatment again under the condition of shading, and drying at 40 ℃ for 20min after the hydrophilic treatment is completed; and after the drying is finished, curing and crosslinking for 25 seconds under a UV lamp, wherein the UV wavelength is 256nm, the power is 4kw, and the hydrophilic non-woven fabric is obtained after curing and crosslinking treatment.
The preparation method of the intercalated hydrophilic finishing agent specifically comprises the following steps: completely dissolving 50 parts by weight of polyvinyl alcohol in deionized water at 80 ℃ under stirring, cooling to room temperature, and then adding acetic acid solution, glutaraldehyde and alumina nanometer with volume fraction of 90 percentMixing the particles with a polyvinyl alcohol solution, and uniformly stirring to obtain a nano mixed solution, wherein an acetic acid solution is prepared by the steps of: glutaraldehyde: the weight ratio of the polyvinyl alcohol is 1.5:1:1, a step of; 7 parts by weight of sodium dodecyl sulfate, 20 parts by weight of crushed polypropylene fibers and 15 parts by weight of H with the volume fraction of 20 percent 2 SO 4 Stirring the solution, adding the solution into the nano mixed solution, and stirring for 4min to obtain the intercalated hydrophilic finishing agent.
The preparation method of the curing crosslinking hydrophilic finishing agent specifically comprises the following steps: mixing the acrylic resin, the hydrophilic monomer PEG (400) DA, the photoinitiator Irgacure184 and the ethyl acetate 10 parts by weight, and stirring for 2min to obtain the cured cross-linked hydrophilic finishing agent.
Comparative example 1:
comparative example 1 is essentially the same as example 1 in parts by weight of the components and preparation process, except that no hydrophilic finishing is carried out in the intercalated hydrophilic finishing agent, specifically:
the multi-time hydrophilic non-woven fabric comprises the following raw materials in parts by weight: 300 parts of polypropylene non-woven fabric, 100 parts of acrylic resin and 20 parts of hydrophilic monomer PEG (400) DA.
A method for preparing a multi-time hydrophilic non-woven fabric, which comprises the following steps:
s1, pretreatment of polypropylene non-woven fabrics: repeatedly soaking polypropylene non-woven fabric in ethanol for 5 times, each time for 5 hours, repeatedly washing with deionized water for 5 times, cleaning, placing the non-woven fabric into an oven at 60-80 ℃, and drying for later use;
s2, immersing the pretreated polypropylene non-woven fabric into a solidified crosslinking hydrophilic finishing agent under the condition of shading, carrying out hydrophilic treatment, and drying at 40 ℃ for 20min after the hydrophilic treatment is finished; and after the drying is finished, curing and crosslinking for 25 seconds under a UV lamp, wherein the UV wavelength is 256nm, the power is 4kw, and the hydrophilic non-woven fabric is obtained after curing and crosslinking treatment.
The preparation method of the curing crosslinking hydrophilic finishing agent specifically comprises the following steps: mixing the acrylic resin, the hydrophilic monomer PEG (400) DA, the photoinitiator Irgacure184 and the ethyl acetate 10 parts by weight, and stirring for 2min to obtain the cured cross-linked hydrophilic finishing agent.
Comparative example 2:
comparative example 2 is essentially the same as example 1 in parts by weight of the components and preparation process, except that the intercalated hydrophilic finish does not use polypropylene fibers, specifically:
the multi-time hydrophilic non-woven fabric comprises the following raw materials in parts by weight: 300 parts of polypropylene non-woven fabric, 100 parts of acrylic resin, 20 parts of hydrophilic monomer PEG (400) DA and 6 parts of alumina nano particles.
A method for preparing a multi-time hydrophilic non-woven fabric, which comprises the following steps:
s1, pretreatment of polypropylene non-woven fabrics: repeatedly soaking polypropylene non-woven fabric in ethanol for 5 times, each time for 5 hours, repeatedly washing with deionized water for 5 times, cleaning, placing the non-woven fabric into an oven at 60-80 ℃, and drying for later use;
s2, immersing the pretreated polypropylene non-woven fabric into an intercalation hydrophilic finishing agent for hydrophilic finishing, drying at 60 ℃ for 3min, immersing the non-woven fabric into a curing cross-linked hydrophilic finishing agent for hydrophilic treatment again under the condition of shading, and drying at 40 ℃ for 20min after the hydrophilic treatment is completed; and after the drying is finished, curing and crosslinking for 25 seconds under a UV lamp, wherein the UV wavelength is 256nm, the power is 4kw, and the hydrophilic non-woven fabric is obtained after curing and crosslinking treatment.
The preparation method of the intercalated hydrophilic finishing agent specifically comprises the following steps: completely dissolving 50 parts by weight of polyvinyl alcohol in deionized water at 80 ℃ under stirring, cooling to room temperature, then adding an acetic acid solution with the volume fraction of 90%, glutaraldehyde, alumina nano particles and the polyvinyl alcohol solution, mixing, and uniformly stirring to obtain an embedded hydrophilic finishing agent, wherein the acetic acid solution: glutaraldehyde: the weight part ratio of the polyvinyl alcohol is (2-1): 1:1.
the preparation method of the curing crosslinking hydrophilic finishing agent specifically comprises the following steps: mixing the acrylic resin, the hydrophilic monomer PEG (400) DA, the photoinitiator Irgacure184 and the ethyl acetate 10 parts by weight, and stirring for 2min to obtain the cured cross-linked hydrophilic finishing agent.
For the hydrophilic nonwoven fabrics obtained in examples 1-3 and comparative examples 1-2, 5 square test pieces of 90 mm. Times.90 mm were cut, and the average value was measured 5 times, and the test of breaking strength, impact toughness and water absorption was performed, and the results are shown in Table 1. Wherein, the breaking strength and impact toughness are in accordance with GB/T24218.3-2010 standard, and the water absorption is in accordance with ASTM D6651-01 standard.
TABLE 1
From the above table, the breaking strength, impact toughness and water absorption of examples 1-3 are all improved compared with those of comparative examples 1-2, which shows that the hydrophilic finishing twice performed by the invention can not only improve the hydrophilicity of the non-woven fabric, but also improve the mechanical property of the non-woven fabric; meanwhile, the hydrophilic nano particles and the fibers are combined in a modified manner, so that the hydrophilicity can be improved to a certain extent, and the mechanical properties of the non-woven fabric can be better improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A method for preparing a multi-time hydrophilic nonwoven fabric, which is characterized by comprising the following steps:
s1, preprocessing polypropylene non-woven fabric, and preparing a hydrophilic finishing agent;
s2, performing secondary hydrophilic finishing on the pretreated polypropylene non-woven fabric, and performing heat drying treatment to obtain hydrophilic non-woven fabric;
the specific steps of the pretreatment of the polypropylene non-woven fabric are as follows: repeatedly soaking polypropylene non-woven fabric in ethanol for 5 times, each time for 5 hours, repeatedly washing with deionized water for 5 times, placing the non-woven fabric in an oven after washing, and drying at 60-80 ℃;
the preparation of the hydrophilic finishing agent comprises the steps of preparing an intercalation hydrophilic finishing agent and curing and crosslinking hydrophilic finishing agent;
the step S2 specifically comprises the following steps: hydrophilic finishing is carried out on the pretreated polypropylene non-woven fabric through embedding hydrophilic finishing agent, drying is carried out for 3min at the temperature of 60 ℃, hydrophilic treatment is carried out again through curing cross-linked hydrophilic finishing agent, and then heat drying treatment is carried out, so that hydrophilic non-woven fabric is obtained;
the preparation method of the intercalation hydrophilic finishing agent specifically comprises the following steps: completely dissolving 50 parts by weight of polyvinyl alcohol in deionized water at 80 ℃ under stirring, cooling to room temperature, then adding acetic acid solution with the volume fraction of 90%, glutaraldehyde, aluminum oxide nano particles and the polyvinyl alcohol solution, mixing, and uniformly stirring to obtain a nano mixed solution, wherein the acetic acid solution is prepared by the following steps: glutaraldehyde: the weight part ratio of the polyvinyl alcohol is (2-1): 1:1, a step of;
5-7 parts by weight of sodium dodecyl sulfate, 20 parts by weight of crushed polypropylene fibers and 10-20 parts by weight of H with the volume fraction of 20 percent 2 SO 4 Stirring the solution, adding the solution into the nano mixed solution, and stirring for 3-5min to obtain the intercalated hydrophilic finishing agent;
the preparation method of the curing crosslinking hydrophilic finishing agent specifically comprises the following steps: mixing acrylic resin, hydrophilic monomer PEG400, 2-4 parts by weight of photoinitiator and 10 parts by weight of ethyl acetate, and stirring for 2min to obtain a cured cross-linked hydrophilic finishing agent;
the multiple hydrophilic non-woven fabric comprises the following raw materials in parts by weight: 200-300 parts of polypropylene non-woven fabric, 80-100 parts of acrylic resin, 20-30 parts of hydrophilic monomer PEG400 and 5-8 parts of alumina nano particles.
2. The method for preparing a multi-hydrophilic nonwoven as claimed in claim 1, wherein the multi-hydrophilic nonwoven comprises the following raw materials in parts by weight: 300 parts of polypropylene non-woven fabric, 100 parts of acrylic resin, 20 parts of hydrophilic monomer PEG400 and 6 parts of alumina nano particles.
3. The method for preparing a multi-hydrophilic nonwoven as claimed in claim 1, wherein the heat-drying treatment comprises a heat treatment followed by a UV-curing treatment.
4. The method for producing a multi-hydrophilic nonwoven as claimed in claim 3, wherein the heat treatment is specifically drying at 40 ℃ for 20min; the UV curing treatment is specifically curing and crosslinking for 25s under a UV lamp, wherein the wavelength is 256nm and the power is 4kw.
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| CN107574665A (en) * | 2017-08-29 | 2018-01-12 | 苏州市苏真床垫有限公司 | A kind of hydrophilic resistant to pollution polypropylene non-woven fabric and preparation method thereof |
| CN109235036A (en) * | 2018-08-27 | 2019-01-18 | 安徽利通达纤维新材料有限公司 | A kind of method that decatize heating in-situ preparation-immersion coating prepares bacteriostasis, preservation non-woven fabrics packaging material |
| CN110983753A (en) * | 2019-12-13 | 2020-04-10 | 江阴开源非织造布制品有限公司 | Antibacterial hydrophilic non-woven fabric modifier and preparation method thereof |
| CN113293619A (en) * | 2021-05-31 | 2021-08-24 | 江苏金太阳纺织科技股份有限公司 | Moisture-absorbing and heat-generating finishing agent, preparation method and application |
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| KR101322602B1 (en) * | 2013-05-27 | 2013-10-29 | (주)지비테크놀리지 | Dry fabric and manufacturing method for absorb and water repellency of antithetic property using |
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| CN107574665A (en) * | 2017-08-29 | 2018-01-12 | 苏州市苏真床垫有限公司 | A kind of hydrophilic resistant to pollution polypropylene non-woven fabric and preparation method thereof |
| CN109235036A (en) * | 2018-08-27 | 2019-01-18 | 安徽利通达纤维新材料有限公司 | A kind of method that decatize heating in-situ preparation-immersion coating prepares bacteriostasis, preservation non-woven fabrics packaging material |
| CN110983753A (en) * | 2019-12-13 | 2020-04-10 | 江阴开源非织造布制品有限公司 | Antibacterial hydrophilic non-woven fabric modifier and preparation method thereof |
| CN113293619A (en) * | 2021-05-31 | 2021-08-24 | 江苏金太阳纺织科技股份有限公司 | Moisture-absorbing and heat-generating finishing agent, preparation method and application |
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