CN115125672B - High-performance polypropylene melt-blown non-woven fabric and preparation method thereof - Google Patents
High-performance polypropylene melt-blown non-woven fabric and preparation method thereof Download PDFInfo
- Publication number
- CN115125672B CN115125672B CN202210845672.7A CN202210845672A CN115125672B CN 115125672 B CN115125672 B CN 115125672B CN 202210845672 A CN202210845672 A CN 202210845672A CN 115125672 B CN115125672 B CN 115125672B
- Authority
- CN
- China
- Prior art keywords
- woven fabric
- polypropylene melt
- blown
- blown non
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004750 melt-blown nonwoven Substances 0.000 title claims abstract description 175
- 239000004744 fabric Substances 0.000 title claims abstract description 170
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 159
- -1 polypropylene Polymers 0.000 title claims abstract description 159
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 159
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000835 fiber Substances 0.000 claims abstract description 68
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 21
- 238000007731 hot pressing Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 35
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 25
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 17
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 17
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- 238000005470 impregnation Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000003599 detergent Substances 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 30
- 230000008569 process Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 10
- 239000012528 membrane Substances 0.000 abstract description 7
- 238000007598 dipping method Methods 0.000 abstract description 5
- 238000009776 industrial production Methods 0.000 abstract description 5
- 239000012466 permeate Substances 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 19
- 230000006872 improvement Effects 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 229920001661 Chitosan Polymers 0.000 description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000006136 alcoholysis reaction Methods 0.000 description 2
- 238000000089 atomic force micrograph Methods 0.000 description 2
- 230000003385 bacteriostatic effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/544—Olefin series
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/558—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
- D06B3/18—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics combined with squeezing, e.g. in padding machines
-
- 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
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives 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
- 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
-
- 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
- D06M15/356—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
- D06M15/3562—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms containing nitrogen
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention provides a high-performance polypropylene melt-blown non-woven fabric and a preparation method thereof. The oligomer in the treatment fluid permeates among the polypropylene fibers, a porous membrane structure is formed among the fibers after hot pressing, and the fibers are inserted among the porous membrane structure to form a crosslinked and bonded fiber structure, so that acting forces among the fibers and among fiber layers are enhanced; the contact effect and acting force of the fiber and the oligomer can be enhanced by pressurizing after dipping, so that the mechanical property of the polypropylene melt-blown non-woven fabric is improved. The hot pressing treatment ensures that the non-woven fabric keeps good air permeability, and improves the surface uniformity and flatness. The method is to carry out post-treatment on the polypropylene melt-blown non-woven fabric, so that the surface property, the mechanical property and the air permeability of the polypropylene melt-blown non-woven fabric are improved, and meanwhile, the technological parameters and the process of the polypropylene melt-blown non-woven fabric are not interfered; and the process is simple, the parameters are controllable, and the industrial production can be realized.
Description
Technical Field
The invention relates to the technical field of novel textile material preparation, in particular to a high-performance polypropylene melt-blown non-woven fabric and a preparation method thereof.
Background
As a material different from the traditional textile cloth, the non-woven fabric has the characteristics of light weight, good air permeability and large-scale industrial production, so that the application field of the non-woven fabric is more and more wide. In the industrial production of nonwoven fabrics, the most common production method is to obtain the nonwoven fabrics from polymer raw materials such as polypropylene through a melt-blowing process. The technological process of melt-blown non-woven fabric includes feeding polymer, melt extrusion, fiber forming, fiber cooling, net forming and reinforcing. With the development of textile technology, the prior melt-blown nonwoven fabric cannot meet the use requirement due to the insufficient performance. At present, many studies have been made on the modification of melt-blown nonwoven fabrics by adding a modifying agent to the polymer raw material to impart a specific property thereto. Although, after the modified polymer is processed into cloth, the mechanical property or other properties of the modified polymer are increased; however, the addition of the modifier can cause a certain degree of influence on the spinning performance of the polymer, and a certain disturbance on the operation of melt spinning equipment and the normal operation of the process, and finally the production efficiency and the economic benefit of the melt-blown non-woven fabric are influenced.
The polypropylene fiber is one of the main synthetic fibers because of the characteristics of low cost, low density, acid resistance, alkali resistance and the like; particularly, after the development of the polymer synthesis technology, the polypropylene melt-blown nonwoven fabric is widely applied to the fields of packaging materials, oil absorption materials, filter materials, medical sanitary materials, battery diaphragms and the like; therefore, the performance requirements for polypropylene melt blown nonwoven fabrics are also increasing. The polypropylene melt-blown non-woven fabric is mainly formed by overlapping layer-by-layer fibers, and because of the limitation of the manufacturing process, the interlacing and winding among the fibers in the polypropylene melt-blown non-woven fabric are less, and the connection among fiber layer structures is not tight, so that the mechanical property of the polypropylene melt-blown non-woven fabric is poor.
In view of the foregoing, there is a need for an improved high performance polypropylene meltblown nonwoven fabric and a method for making the same that addresses the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a high-performance polypropylene melt-blown non-woven fabric and a preparation method thereof, wherein the padding treatment is carried out in specific treatment liquid, the technological parameters of the padding treatment and the liquid carrying rate of the polypropylene melt-blown non-woven fabric after padding are controlled, and then the hot-pressing treatment is carried out, so that the bonding between fibers and between fiber layers of the non-woven fabric is tight, and the surface property, mechanical property and air permeability of the melt-blown non-woven fabric are improved.
In order to achieve the aim of the invention, the invention provides a preparation method of high-performance polypropylene melt-blown non-woven fabric, which comprises the following steps:
s1, pre-treating polypropylene melt-blown non-woven fabrics, and then placing the non-woven fabrics in a treatment liquid for padding treatment; the liquid carrying rate of the polypropylene melt-blown non-woven fabric after padding is 5% -50%; the solute of the treatment fluid comprises oligomers accounting for 0.5-5% of the total mass of the treatment fluid; the molecular weight of the oligomer is 9-12 ten thousand;
s2, carrying out hot pressing treatment on the polypropylene melt-blown non-woven fabric subjected to padding treatment in the step S1 to obtain the high-performance polypropylene melt-blown non-woven fabric.
As a further improvement of the present invention, in step S1, the solute includes one or more of polyvinyl alcohol, polyvinyl butyral, polyvinylpyrrolidone, and chitosan; the solute is preferably polyvinyl butyral or a mixed solute of polyvinyl butyral and polyvinylpyrrolidone.
As a further improvement of the present invention, the solute is preferably polyvinyl butyral accounting for 3% of the total mass of the treatment liquid; the mass ratio of the polyvinyl butyral to the polyvinylpyrrolidone in the mixed solute is 1:9-9:1, preferably 8:2.
As a further improvement of the present invention, in step S1, the impregnation time of the padding treatment is 2 to 10 minutes, preferably 4 to 6 minutes; the temperature is 60 to 145 ℃, preferably 80 to 120 ℃.
As a further improvement of the present invention, in step S2, the temperature of the autoclave is determined according to the kind of the solvent in the treatment liquid; the temperature of the hot pressing treatment is not lower than the boiling point of the solvent and not higher than the softening temperature of the polypropylene melt-blown nonwoven fabric.
As a further improvement of the invention, the solute of the treatment fluid also comprises a silane coupling agent, wherein the silane coupling agent accounts for 0-30% of the total mass of the treatment fluid.
As a further improvement of the invention, the solvent of the treatment fluid comprises one of deionized water, absolute ethyl alcohol and polyethylene glycol.
As a further improvement of the invention, in the step S1, the pretreatment is to put the polypropylene melt-blown non-woven fabric into a detergent for cleaning for 20-40 min, and then dry for 1.5-2.5 h in an environment of 50-70 ℃.
As a further improvement of the present invention, the high-performance polypropylene melt-blown nonwoven fabric is produced by the production method of the high-performance polypropylene melt-blown nonwoven fabric according to any one of claims 1 to 8; the fiber of the high-performance polypropylene melt-blown non-woven fabric is in an adhesion structure.
As a further improvement of the invention, the breaking strength of the high-performance polypropylene melt-blown non-woven fabric is enhanced by 15% -120% compared with that of the polypropylene melt-blown non-woven fabric before treatment; the ventilation amount is 500-900 mm 3 /s。
The beneficial effects of the invention are as follows:
1. according to the high-performance polypropylene melt-blown non-woven fabric and the preparation method thereof, padding treatment is carried out in specific treatment liquid, technological parameters of the padding treatment and the liquid carrying rate of the polypropylene melt-blown non-woven fabric after padding are controlled, and hot pressing treatment is carried out, so that the bonding between fibers and between fiber layers of the non-woven fabric is tight, and the surface property, mechanical property and air permeability of the melt-blown non-woven fabric are improved. The method of the invention carries out post-treatment on the melt-blown non-woven fabric, does not interfere the technological parameters and technological process of the melt-blown non-woven fabric, and can overcome the problem of poor mechanical properties of the melt-blown non-woven fabric caused by the process of overlapping layers; the method has the advantages of simple process, controllable parameters, simple operation, realization of industrial production and remarkable feasibility.
2. The solute of the treatment fluid used in the invention is an oligomer with the molecular weight of 9-12 ten thousand, and after the polypropylene melt-blown non-woven fabric is immersed in the treatment fluid, the oligomer in the treatment fluid fully permeates between the polypropylene fibers; and then, through hot pressing treatment, the oligomer molecules are mutually crosslinked among the polypropylene fibers to form a porous membrane structure, and the polypropylene fibers are inserted among the porous membrane structures to form a crosslinked and bonded fiber structure, so that acting forces among the fibers and among fiber layers are enhanced. After the polypropylene melt-blown non-woven fabric is impregnated, pressure is applied in the direction perpendicular to the cloth surface of the non-woven fabric, so that the contact effect and acting force between the fibers and the oligomer are further enhanced; thereby improving the bonding effect between the melt-blown non-woven fabrics, forming a uniform and stable integral structure and improving the strength of the melt-blown non-woven fabrics. The hot-pressed melt-blown non-woven fabric after padding not only enables the solvent in the treatment fluid in the fiber to evaporate, but also increases the air permeability among the fibers; the polypropylene melt-blown non-woven fabric has a beneficial effect on the surface morphology of the polypropylene melt-blown non-woven fabric, and the uniformity and flatness of the surface of the melt-blown non-woven fabric are improved.
3. The invention controls the types, the concentration and the molecular weight of the oligomers of the solute of the treatment fluid, so that the treatment fluid can completely permeate between the fibers and react with the fibers to generate acting force, thereby increasing the adhesive force between the fibers; meanwhile, the influence of the treatment fluid on the air permeability and the softness of the non-woven fabric is avoided, so that the prepared high-performance non-woven fabric still has good clothing wearing performance. The solute of the treatment fluid is preferably polyvinyl butyral or a mixed solute of polyvinyl butyral and polyvinylpyrrolidone, and the membrane formed by the treatment fluid of the solute system has good structural stability and high porosity, does not influence the air permeability of the polypropylene melt-blown non-woven fabric, and can ensure the strength of the material. In addition, the effect between the treatment liquid and the melt-blown non-woven fabric fiber is controlled by controlling the related parameters of the padding treatment, so that the prepared melt-blown non-woven fabric has excellent comprehensive performance.
Drawings
FIG. 1 is a fiber atomic force microscope image of the polypropylene meltblown nonwoven fabric of example 1, wherein (a) is the fibers of the original polypropylene meltblown nonwoven fabric and (b) is the fibers of the high performance polypropylene meltblown nonwoven fabric.
FIG. 2 is a graph of the contact angle comparison of the polypropylene meltblown nonwoven of example 2, wherein (a) is the original polypropylene meltblown nonwoven and (b) is the high performance polypropylene meltblown nonwoven.
Fig. 3 is a schematic view of the bacteriostatic properties of a polypropylene meltblown nonwoven, wherein (a) is a virgin polypropylene meltblown nonwoven, (b) is a high performance polypropylene meltblown nonwoven of example 1, and (c) is a high performance polypropylene meltblown nonwoven of example 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and/or processing steps closely related to aspects of the present invention are shown in the drawings, and other details not greatly related to the present invention are omitted.
In addition, it should be further noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The preparation method of the high-performance polypropylene melt-blown non-woven fabric comprises the following steps:
s1, pre-treating polypropylene melt-blown non-woven fabrics, and then placing the non-woven fabrics in a treatment liquid for padding treatment; the liquid carrying rate of the polypropylene melt-blown non-woven fabric after padding is 5% -30%; the solute of the treatment fluid comprises oligomers accounting for 0.5-5% of the total mass of the treatment fluid; the molecular weight of the oligomer is 9-12 ten thousand; the soaking time of the padding treatment is 2-10 min, and the temperature is 60-145 ℃; wherein the solute comprises one or more of polyvinyl alcohol, polyvinyl butyral, polyvinylpyrrolidone and chitosan;
s2, carrying out hot-pressing treatment on the polypropylene melt-blown non-woven fabric subjected to padding treatment in the step S1 to obtain high-performance polypropylene melt-blown non-woven fabric;
wherein, the temperature of the hot pressing treatment is determined according to the types of solvents in the treatment fluid; the temperature of the hot pressing treatment is not lower than the boiling point of the solvent and not higher than the softening temperature of the polypropylene melt-blown nonwoven fabric. After hot pressing treatment, the polypropylene melt-blown non-woven fabric is subjected to hot pressing treatment, so that the solvent in the treatment liquid in the fiber is evaporated, and the air permeability among the fibers is improved; and the method has the advantages of favorable effect on the surface morphology of the melt-blown non-woven fabric and increased uniformity and flatness of the surface of the melt-blown non-woven fabric.
Preferably, in step S1, the solute is preferably polyvinyl butyral or a mixed solute of polyvinyl butyral and polyvinylpyrrolidone. The solute is preferably polyvinyl butyral accounting for 3% of the total mass of the treatment fluid; the mass ratio of the polyvinyl butyral to the polyvinylpyrrolidone in the mixed solute is 1:9-9:1, preferably 8:2. Under the treatment fluid system, the formed film has good structural stability and high porosity, does not influence the air permeability of the polypropylene melt-blown non-woven fabric, and can ensure the strength of the material, so that the prepared polypropylene melt-blown non-woven fabric has excellent mechanical property and air permeability. In addition, the polyvinylpyrrolidone can regulate the interaction among polyvinyl butyral molecules, so that the acting force among polypropylene fibers is further improved; the chitosan as a solute not only can improve the strength and air permeability of the polypropylene melt-blown non-woven fabric, but also can endow the polypropylene melt-blown non-woven fabric with antibacterial performance and hydrophilic performance, and is suitable for the application field of the melt-blown non-woven fabric with certain requirements on antibacterial performance or hydrophilic performance. The dipping time of the padding treatment is preferably 4-6 min; the temperature is preferably 80-120 ℃; in the soaking time range and at the temperature, the action effect of the oligomer in the treatment liquid and the melt-blown non-woven fabric is good, and the comprehensive performance of the treated non-woven fabric is high.
Particularly, when the polypropylene melt-blown non-woven fabric is treated, the solute of the treatment fluid also comprises a silane coupling agent, and the silane coupling agent accounts for 0-30% of the total mass of the treatment fluid. The hydrolyzable group and the organic functional group on the silane coupling agent in the treatment fluid react with active groups on the polypropylene fiber or the oligomer, the reactive groups play a role of connecting bridges among the oligomer, the polypropylene fiber and the fiber, and the chemical and physical acting forces among the fibers are enhanced, so that the mechanical properties of the polypropylene melt-blown non-woven fabric are improved, and the reactive groups are more suitable for application requirements of various fields.
Specifically, in step S1, the solvent of the treatment solution includes one of deionized water, absolute ethanol, and polyethylene glycol; the pretreatment is to put the polypropylene melt-blown non-woven fabric into a detergent for cleaning for 20-40 min, and then dry for 1.5-2.5 h in the environment of 50-70 ℃.
The high-performance polypropylene melt-blown non-woven fabric is prepared by a preparation method of the high-performance polypropylene melt-blown non-woven fabric; the fiber of the high-performance polypropylene melt-blown non-woven fabric is in an adhesion structure; compared with the melt-blown non-woven fabric before treatment, the breaking strength of the high-performance polypropylene melt-blown non-woven fabric is enhanced by 15% -120%; the ventilation amount is 500-900 mm 3 /s。
The invention adopts specific treatment fluid to carry out padding and hot pressing treatment on the melt-blown non-woven fabric, the oligomer molecules are crosslinked among polypropylene fibers to form a film structure, the polypropylene fibers are inserted among the film structure to form a fiber structure which is integrally crosslinked and bonded, and the acting force among the fibers and among fiber layers is enhanced. The defined mixed solute of the oligomer polyvinyl butyral and the polyvinylpyrrolidone forms a better molecular structure, so that the adhesive force between fibers can be further increased; then, pressure is applied in the direction perpendicular to the cloth cover of the non-woven fabric, so that the contact effect and acting force between the fiber and the oligomer are further enhanced; thereby improving the bonding effect between the polypropylene melt-blown non-woven fabrics and enhancing the breaking strength of the polypropylene melt-blown non-woven fabrics.
Example 1
The embodiment provides a high-performance polypropylene melt-blown non-woven fabric and a preparation method thereof, and the method comprises the following steps:
s1, weighing 0.5g of polyvinyl alcohol and 99.5g of deionized water, and uniformly mixing at room temperature to prepare a treatment solution; placing the polypropylene melt-blown non-woven fabric into a detergent for cleaning for 30min, and then drying for 2h in an environment of 60 ℃; then placing the mixture into a treatment liquid for padding treatment; the liquid carrying rate of the polypropylene melt-blown non-woven fabric after padding is 5 percent, and the dipping temperature is 80 ℃. The time is 5min; the alcoholysis degree of the polyvinyl alcohol is 85%;
s2, carrying out hot-pressing treatment on the polypropylene melt-blown non-woven fabric subjected to padding treatment in the step S1, wherein the temperature of the hot-pressing treatment is 100 ℃ and the pressure is 5MPa; preparing high-performance polypropylene melt-blown non-woven fabrics;
referring to FIG. 1, a fiber atomic force microscope image of a polypropylene meltblown nonwoven fabric of example 1 is shown, wherein (a) is the fibers of the original polypropylene meltblown nonwoven fabric and (b) is the fibers of the high performance polypropylene meltblown nonwoven fabric. From the figure, it can be seen that the atomic force of the fiber surface of the original polypropylene melt-blown nonwoven fabric in the figure (a) is weak, while the surface in the figure (b) is rough, which shows that the atomic force of the fiber is strong, and the scheme can improve the interaction of atoms among the fibers of the polypropylene melt-blown nonwoven fabric, thereby improving the strength performance.
Example 2
The embodiment provides a high-performance polypropylene melt-blown non-woven fabric and a preparation method thereof, which are opposite to embodiment 1, and are different in that in step S1, the solute of the treatment fluid is carboxylated chitosan, and the rest is substantially the same as embodiment 1, and the details are not repeated here.
Referring to fig. 2, a graph of contact angle comparison of the polypropylene melt-blown nonwoven fabric of example 2 is shown, wherein (a) is the original polypropylene melt-blown nonwoven fabric and (b) is the high performance polypropylene melt-blown nonwoven fabric. From the figure, after the polypropylene melt-blown non-woven fabric is treated by using the treatment fluid system containing carboxylated chitosan, the surface hydrophobicity of the polypropylene melt-blown non-woven fabric is obviously improved, and the polypropylene melt-blown non-woven fabric is endowed with good hydrophilic performance, so that the polypropylene melt-blown non-woven fabric is more suitable for certain application fields of the melt-blown non-woven fabric with requirements on hydrophilicity.
Referring to fig. 3, a schematic diagram of the bacteriostatic performance of the polypropylene melt-blown nonwoven fabric is shown, wherein (a) is the original polypropylene melt-blown nonwoven fabric, (b) is the high-performance polypropylene melt-blown nonwoven fabric of example 1, and (c) is the high-performance polypropylene melt-blown nonwoven fabric of example 2. From the figure, it can be seen that the polypropylene melt-blown non-woven fabric has better antibacterial performance after being treated by using the treatment liquid system containing carboxylated chitosan. The method improves the mechanical property and the air permeability of the polypropylene melt-blown non-woven fabric, and simultaneously endows the polypropylene non-woven fabric with different functionalities due to the specificity of solute types, thereby effectively widening the application field.
Example 3
The embodiment provides a high-performance polypropylene melt-blown non-woven fabric and a preparation method thereof, which are opposite to embodiment 1, and are different in that in step S1, the solute of the treatment fluid is polyvinylpyrrolidone; the remainder is substantially the same as that of example 1, and will not be described in detail here.
Example 4
The embodiment provides a high-performance polypropylene melt-blown non-woven fabric and a preparation method thereof, which are opposite to the embodiment 1, and are different in that in the step S1, the solute of the treatment liquid is polyvinyl butyral, and the solvent is ethanol; the remainder is substantially the same as that of example 1, and will not be described in detail here.
Example 5
Example 5 provides a high performance polypropylene melt-blown nonwoven fabric and a method for preparing the same, which is different from example 1 in that in step S1, the degree of alcoholysis of the polyvinyl alcohol of example 5 is 90%; the remainder is substantially the same as that of example 1, and will not be described in detail here.
Example 6
The embodiment provides a high-performance polypropylene melt-blown non-woven fabric and a preparation method thereof, which are opposite to the embodiment 1, and are different in that in the step S1, the solute of the treatment fluid is a mixed solute of polyvinyl butyral and polyvinylpyrrolidone, the mass ratio of the two is 8:2, and the solvent is ethanol; the remainder is substantially the same as that of example 1, and will not be described in detail here.
Comparative example 1
Comparative example 1 provides a high performance polypropylene melt-blown nonwoven fabric and a method for preparing the same, which is different from example 1 in that in step S1, the solute is a high polymer of polyvinyl alcohol; the remainder is substantially the same as that of example 1, and will not be described in detail here.
The high performance polypropylene melt blown nonwoven fabrics and the original melt blown nonwoven fabrics of examples 1 to 6 were tested for breaking strength and air permeability, and the results are shown in the following table.
Table 1 performance indices of the high performance polypropylene meltblown nonwoven fabrics and the original meltblown nonwoven fabrics of examples 1 to 6, comparative example 1
As is clear from Table 1, the change in the solute type and molecular weight of the treatment liquid produced different enhancement effects on the breaking strength and air permeability of the polypropylene melt-blown nonwoven fabric. When the solute type of the treatment liquid is one, it is apparent from examples 1 to 5 that the polypropylene melt-blown nonwoven fabric has the highest breaking strength and the highest air permeability when the solute is polyvinyl butyral. When the solute of the treatment fluid in the embodiment 6 is polyvinyl butyral and polyvinylpyrrolidone in a mass ratio of 8:2, the breaking strength and the air permeability are better than those of the embodiments 1-5, because the polyvinylpyrrolidone can regulate the interaction among polyvinyl butyral molecules, the acting force among polypropylene fibers is further improved, and the mechanical property of the polypropylene melt-blown non-woven fabric is greatly improved. Comparative example 1 shows that when the solute is a polymer, the polypropylene melt-blown nonwoven fabric has an improved breaking strength, but has poor air permeability.
Examples 7 to 12
Examples 7 to 12 provide a high performance polypropylene melt-blown nonwoven fabric and a method for producing the same, which are different from example 1 in that in step S1, the parameters of the liquid carrying rate, the impregnation temperature, and the time of the melt-blown nonwoven fabrics of examples 7 to 12 are shown in the following table; the remainder is substantially the same as that of example 1, and will not be described in detail here.
Comparative examples 2 to 4
Comparative examples 2 to 4 provide a high performance polypropylene melt-blown nonwoven fabric and a method for preparing the same, which are different from example 1 in that in step S1, the parameters of the liquid carrying rate, the impregnation temperature, and the time of the polypropylene melt-blown nonwoven fabrics of examples 2 to 4 are shown in the following table; the remainder is substantially the same as that of example 1, and will not be described in detail here.
Table 2 protocol parameters for examples 7-12 and comparative examples 2-4
The high performance polypropylene melt blown nonwoven fabrics of examples 7 to 12 and comparative examples 2 to 4 were tested for breaking strength and air permeability, and the results are shown in the following table.
Table 3 Performance index of high Performance Polypropylene melt blown nonwoven fabrics of examples 7-12 and comparative examples 2-4
| Breaking strength/N | Air permeability/mm 3 /s | |
| Example 7 | 48 | 730 |
| Example 8 | 53 | 754 |
| Example 9 | 53 | 759 |
| Example 10 | 59 | 770 |
| Example 11 | 65 | 810 |
| Example 12 | 70 | 715 |
| Comparative example 2 | 45 | 652 |
| Comparative example 3 | 38 | 641 |
| Comparative example 4 | 32 | 620 |
As can be seen from table 3, the liquid carrying rate on the polypropylene nonwoven fabric can be effectively changed by changing the impregnation temperature and the impregnation time, and the breaking strength and the air permeability of the polypropylene melt-blown nonwoven fabric can be further changed; as is clear from examples 7 to 12, the increase in the liquid carrying rate caused the tendency of the air permeability of the nonwoven fabric to increase and decrease; and the polypropylene melt-blown non-woven fabric has better breaking strength and air permeability and high comprehensive performance when the dipping temperature is 120 ℃ and the dipping time is 5 min.
Examples 13 to 14
Examples 13 to 14 provide a high-performance polypropylene melt-blown nonwoven fabric and a method for producing the same, which are different from example 1 in that in step S1, the mass percentages of solutes in the treatment fluids of examples 13 to 14 are 3% and 5%, respectively; the remainder is substantially the same as that of example 1, and will not be described in detail here.
Examples 15 to 16
Examples 15 to 16 provide a high-performance polypropylene melt-blown nonwoven fabric and a preparation method thereof, which are different from example 6 in that the mass ratio of polyvinyl butyral to polyvinylpyrrolidone in examples 15 to 16 is 5:5 and 2:8, respectively; the remainder is substantially the same as that of example 6, and will not be described in detail here.
Comparative example 5
Comparative example 5 provides a high performance polypropylene melt-blown nonwoven fabric and a method for producing the same, which is different from example 1 in that in step S1, the mass percentage of solute in the treatment liquid is 8%; the remainder is substantially the same as that of example 1, and will not be described in detail here.
The high performance polypropylene melt blown nonwoven fabrics of examples 13 to 16 and comparative example 5 were tested for breaking strength and air permeability, and the results are shown in the following table.
Table 4 Performance index of the high Performance Polypropylene meltblown nonwoven fabrics of examples 13-16 and comparative example 5
| Breaking strength/N | Air permeability/mm 3 /s | |
| Example 13 | 75 | 723 |
| Example 14 | 62 | 724 |
| Example 15 | 41 | 725 |
| Example 16 | 38 | 750 |
| Comparative example 5 | 65 | 550 |
As can be seen from Table 4, the mechanical properties and air permeability of the polypropylene melt-blown nonwoven fabrics were greatly affected by changing the ratio of the solutes. As is clear from the data of example 1, examples 13 to 14 and comparative example 5, when the mass percentage of the solute in the treatment liquid is 3%, the breaking strength of the polypropylene melt-blown nonwoven fabric is highest, and the air permeability is also good; however, when the solute is 8% in comparative example 5, the air permeability of the polypropylene melt-blown nonwoven fabric is adversely affected; therefore, the solute content in the treatment liquid needs to be strictly limited, so that the polypropylene melt-blown nonwoven fabric has higher comprehensive performance.
In summary, the invention provides a high-performance polypropylene melt-blown non-woven fabric and a preparation method thereof, wherein the polypropylene melt-blown non-woven fabric is subjected to padding treatment in specific treatment liquid, technological parameters of the padding treatment and liquid carrying rate of the melt-blown non-woven fabric after padding are controlled, and then the hot-press treatment is performed, so that the bonding among fibers and among fiber layers of the non-woven fabric is tight, and the surface property, mechanical property and air permeability of the melt-blown non-woven fabric are improved. The method adopts a specific treatment liquid to pad the melt-blown non-woven fabric, and the oligomer in the treatment liquid fully permeates between polypropylene fibers; and then, performing hot pressing treatment, wherein the oligomer forms a porous membrane structure among polypropylene fibers, the polypropylene fibers are inserted among the porous membrane structure to form a crosslinked and bonded fiber structure, and the acting force among the fibers and among fiber layers is enhanced. After impregnation, pressure is applied in the direction perpendicular to the cloth cover of the non-woven fabric, so that the contact effect and acting force between the fiber and the oligomer are further enhanced; thereby improving the bonding effect among the melt-blown non-woven fabrics and enhancing the strength of the melt-blown non-woven fabrics. The hot pressing treatment not only causes the solvent in the treatment fluid in the fiber to evaporate, but also increases the air permeability between the fibers; the polypropylene melt-blown non-woven fabric has a beneficial effect on the surface morphology of the polypropylene melt-blown non-woven fabric, and the uniformity and flatness of the surface of the melt-blown non-woven fabric are improved. The invention carries out post-treatment on the polypropylene melt-blown non-woven fabric, does not interfere the technological parameters and technological process of the melt-blown non-woven fabric, and can overcome the problem of poor mechanical properties of the melt-blown non-woven fabric caused by the process of overlapping layers; the method has the advantages of simple process, controllable parameters, simple operation, realization of industrial production and remarkable feasibility.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. The preparation method of the high-performance polypropylene melt-blown non-woven fabric is characterized by comprising the following steps of:
s1, pre-treating polypropylene melt-blown non-woven fabrics, and then placing the non-woven fabrics in a treatment liquid for padding treatment; the liquid carrying rate of the polypropylene melt-blown non-woven fabric after padding is 5% -50%; the solute of the treatment fluid comprises oligomers accounting for 0.5% -5% of the total mass of the treatment fluid; the molecular weight of the oligomer is 9-12 ten thousand;
the solute is polyvinyl butyral or a mixed solute of polyvinyl butyral and polyvinylpyrrolidone; the soaking time of the padding treatment is 2-10 min, and the temperature is 60-145 ℃;
s2, carrying out hot-pressing treatment on the polypropylene melt-blown non-woven fabric subjected to padding treatment in the step S1 to obtain the high-performance polypropylene melt-blown non-woven fabric; the temperature of the hot pressing treatment is determined according to the type of the solvent in the treatment liquid, and the temperature of the hot pressing treatment is not lower than the boiling point of the solvent and is not higher than the softening temperature of the polypropylene melt-blown non-woven fabric.
2. The method for producing a high-performance polypropylene melt-blown nonwoven fabric according to claim 1, wherein the solute is polyvinyl butyral accounting for 3% of the total mass of the treatment liquid.
3. The method for preparing the high-performance polypropylene melt-blown non-woven fabric according to claim 1, wherein the mass ratio of the polyvinyl butyral to the polyvinylpyrrolidone in the mixed solute is 1:9-9:1.
4. The method for producing a high-performance polypropylene melt-blown nonwoven fabric according to claim 3, wherein the mass ratio of the polyvinyl butyral to the polyvinyl pyrrolidone in the mixed solute is 8:2.
5. The method for preparing a high-performance polypropylene melt-blown nonwoven fabric according to claim 1, wherein in step S1, the impregnation time of the padding treatment is 4 to 6 minutes; the temperature is 80-120 ℃.
6. The method for preparing the high-performance polypropylene melt-blown non-woven fabric according to claim 1, wherein the solute of the treatment fluid further comprises a silane coupling agent, and the silane coupling agent accounts for 0% -30% of the total mass of the treatment fluid.
7. The method for producing a high-performance polypropylene melt-blown nonwoven fabric according to claim 1, wherein the solvent of the treatment liquid is absolute ethyl alcohol.
8. The method for preparing the high-performance polypropylene melt-blown non-woven fabric according to claim 1, wherein in the step S1, the pretreatment is to put the polypropylene melt-blown non-woven fabric into a detergent for cleaning for 20-40 min, and then dry the non-woven fabric in an environment of 50-70 ℃ for 1.5-2.5 h.
9. A high performance polypropylene melt blown nonwoven fabric, characterized in that the high performance polypropylene melt blown nonwoven fabric is prepared by the preparation method of the high performance polypropylene melt blown nonwoven fabric according to any one of claims 1 to 8; the fiber of the high-performance polypropylene melt-blown non-woven fabric is in an adhesion structure.
10. The high performance polypropylene meltblown nonwoven according to claim 9, wherein the high performance polypropylene meltblown nonwoven has 15% -120% improved break strength as compared to pre-treated polypropylene meltblown nonwoven; the ventilation amount is 500-900 mm 3 /s。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210845672.7A CN115125672B (en) | 2022-07-19 | 2022-07-19 | High-performance polypropylene melt-blown non-woven fabric and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210845672.7A CN115125672B (en) | 2022-07-19 | 2022-07-19 | High-performance polypropylene melt-blown non-woven fabric and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115125672A CN115125672A (en) | 2022-09-30 |
| CN115125672B true CN115125672B (en) | 2024-02-23 |
Family
ID=83383306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210845672.7A Active CN115125672B (en) | 2022-07-19 | 2022-07-19 | High-performance polypropylene melt-blown non-woven fabric and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115125672B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048892A (en) * | 1989-05-24 | 1991-01-30 | 奥本大学 | Blend fiber composite structure and method for making thereof and purposes |
| JP2001032159A (en) * | 1999-07-13 | 2001-02-06 | Asahi Chem Ind Co Ltd | Flame-resistant nonwoven fabric |
| CN1373253A (en) * | 2001-02-28 | 2002-10-09 | 付强 | Degradable composite material and its preparing process |
| CN107415285A (en) * | 2017-06-25 | 2017-12-01 | 长沙善道新材料科技有限公司 | A kind of melt impregnation preparation method of the continuous fiber reinforced thermoplastic resin prepreg tape of low porosity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120148753A1 (en) * | 2007-12-12 | 2012-06-14 | Masanori Kubota | Prepreg |
-
2022
- 2022-07-19 CN CN202210845672.7A patent/CN115125672B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048892A (en) * | 1989-05-24 | 1991-01-30 | 奥本大学 | Blend fiber composite structure and method for making thereof and purposes |
| JP2001032159A (en) * | 1999-07-13 | 2001-02-06 | Asahi Chem Ind Co Ltd | Flame-resistant nonwoven fabric |
| CN1373253A (en) * | 2001-02-28 | 2002-10-09 | 付强 | Degradable composite material and its preparing process |
| CN107415285A (en) * | 2017-06-25 | 2017-12-01 | 长沙善道新材料科技有限公司 | A kind of melt impregnation preparation method of the continuous fiber reinforced thermoplastic resin prepreg tape of low porosity |
Non-Patent Citations (2)
| Title |
|---|
| 李亚杰.《建筑材料》.中国水利水电出版社,2001,(第2001年3月第4版版),正文第189-190页. * |
| 汪多仁.《现代日用化工产品》.冶金工业出版社,2000,(第2000年3月第1版版),正文第504-505页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115125672A (en) | 2022-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110528314B (en) | Composite sheet containing melt-blown polyphenylene sulfide superfine fibers and preparation method and application thereof | |
| CN108273392B (en) | Method for modifying hollow braided tube and method for producing hollow fiber membrane | |
| CN109826015B (en) | temperature-sensitive/pH dual-response intelligent nanofiber material and preparation method and application thereof | |
| CN111286852B (en) | Preparation method of long-acting anti-fouling fabric based on nanogel treatment | |
| CN112208177A (en) | High-breathability PE composite fabric and preparation method thereof | |
| CN112538663A (en) | Lyocell fiber, Lyocell fiber mask cloth and manufacturing method thereof | |
| CN112680884A (en) | Preparation method of antibacterial mask material | |
| CN115125672B (en) | High-performance polypropylene melt-blown non-woven fabric and preparation method thereof | |
| CN108252110A (en) | A kind of fabric for depositing the method for high molecular material in fabric surface and being prepared with this method | |
| CN110172741B (en) | Preparation method of functional cellulose fiber | |
| CN112695411B (en) | Preparation method of temperature response type nanofiber dressing | |
| CN111254562B (en) | Moisture-absorbing and antibacterial functional knitted fabric and processing technology thereof | |
| CN113073492A (en) | Water purifier filter paper and preparation method thereof | |
| CN112941725A (en) | Durable polyvinylidene fluoride three-layer composite hydrophilic membrane and preparation method thereof | |
| CN115970508B (en) | Nanofiber membrane with gel network, preparation method and application | |
| CN113996188B (en) | Degradable Janus membrane material and preparation method and application thereof | |
| CN111286830A (en) | Production process of antibacterial textile fabric | |
| CN112774462A (en) | Novel semipermeable membrane support body | |
| CN111823672A (en) | Towel with cooling and refreshing functions and preparation method thereof | |
| CN113622191B (en) | Special surface structure fiber and preparation method and application thereof | |
| CN113089181B (en) | High-strength high-water-absorptivity composite non-woven fabric and preparation method thereof | |
| CN111389244B (en) | High-peel-strength nanofiber composite membrane and preparation method thereof | |
| CN114391691B (en) | Antibacterial breathable protective clothing and preparation method thereof | |
| CN114405157B (en) | High-strength fluid separation medium | |
| CN115233446A (en) | Preparation method of nylon nanofiber suspension, nylon nanofiber membrane and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |