CN115216891A - Antibacterial polypropylene melt-blown cloth material and preparation process thereof - Google Patents
Antibacterial polypropylene melt-blown cloth material and preparation process thereof Download PDFInfo
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- CN115216891A CN115216891A CN202210738213.9A CN202210738213A CN115216891A CN 115216891 A CN115216891 A CN 115216891A CN 202210738213 A CN202210738213 A CN 202210738213A CN 115216891 A CN115216891 A CN 115216891A
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- melt
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- polypropylene
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- -1 polypropylene Polymers 0.000 title claims abstract description 76
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 69
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 69
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 60
- 239000004744 fabric Substances 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims description 10
- 239000000835 fiber Substances 0.000 claims abstract description 45
- 239000011347 resin Substances 0.000 claims abstract description 24
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 238000009987 spinning Methods 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- 239000002667 nucleating agent Substances 0.000 claims abstract description 13
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 239000007822 coupling agent Substances 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 239000003999 initiator Substances 0.000 claims abstract description 12
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 claims abstract description 11
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims abstract description 11
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims abstract description 11
- 239000003381 stabilizer Substances 0.000 claims abstract description 11
- 239000000155 melt Substances 0.000 claims description 42
- 238000010438 heat treatment Methods 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 26
- 238000009826 distribution Methods 0.000 claims description 25
- 238000005485 electric heating Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 15
- 239000012943 hotmelt Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 11
- 241000894006 Bacteria Species 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- SMQUZDBALVYZAC-UHFFFAOYSA-N salicylaldehyde Chemical compound OC1=CC=CC=C1C=O SMQUZDBALVYZAC-UHFFFAOYSA-N 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 7
- 239000012752 auxiliary agent Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 5
- 239000010839 body fluid Substances 0.000 claims description 5
- 210000001124 body fluid Anatomy 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 claims description 5
- 230000008025 crystallization Effects 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 229920002521 macromolecule Polymers 0.000 claims description 5
- 238000002074 melt spinning Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 claims description 5
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 claims description 4
- 235000004279 alanine Nutrition 0.000 claims description 4
- 235000001014 amino acid Nutrition 0.000 claims description 4
- 150000001413 amino acids Chemical class 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims 2
- 239000004471 Glycine Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 4
- 239000011859 microparticle Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- FPYUJUBAXZAQNL-UHFFFAOYSA-N 2-chlorobenzaldehyde Chemical compound ClC1=CC=CC=C1C=O FPYUJUBAXZAQNL-UHFFFAOYSA-N 0.000 description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
- QUUCYKKMFLJLFS-UHFFFAOYSA-N Dehydroabietan Natural products CC1(C)CCCC2(C)C3=CC=C(C(C)C)C=C3CCC21 QUUCYKKMFLJLFS-UHFFFAOYSA-N 0.000 description 2
- NFWKVWVWBFBAOV-UHFFFAOYSA-N Dehydroabietic acid Natural products OC(=O)C1(C)CCCC2(C)C3=CC=C(C(C)C)C=C3CCC21 NFWKVWVWBFBAOV-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- NFWKVWVWBFBAOV-MISYRCLQSA-N dehydroabietic acid Chemical compound OC(=O)[C@]1(C)CCC[C@]2(C)C3=CC=C(C(C)C)C=C3CC[C@H]21 NFWKVWVWBFBAOV-MISYRCLQSA-N 0.000 description 2
- 229940118781 dehydroabietic acid Drugs 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 239000000600 sorbitol Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- RAIPHJJURHTUIC-UHFFFAOYSA-N 1,3-thiazol-2-amine Chemical group NC1=NC=CS1 RAIPHJJURHTUIC-UHFFFAOYSA-N 0.000 description 1
- IEKHISJGRIEHRE-UHFFFAOYSA-N 16-methylheptadecanoic acid;propan-2-ol;titanium Chemical group [Ti].CC(C)O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O IEKHISJGRIEHRE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001153 anti-wrinkle effect Effects 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical group [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229940071566 zinc glycinate Drugs 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
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- 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
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
The invention relates to the technical field of melt-blown cloth, in particular to an antibacterial polypropylene melt-blown cloth material, which comprises the following specific components in percentage by weight: 93-95 parts of polypropylene resin, 0.4-0.8 part of di-tert-butyl peroxide, 0.4-0.8 part of initiator, 0.04-1.3 parts of compound transparent nucleating agent, 0.4-0.9 part of erucamide, 0.03-0.25 part of antioxidant, 0.1-0.5 part of stabilizer, 0.5-1 part of coupling agent, 0.4-0.9 part of dispersant and 0.1-0.5 part of antibacterial assistant. When the melt-blown fabric is sprayed out, the fineness of sprayed fibers is improved to reach the standard by utilizing the influence of hot air quantity and pressure, so that the strength is increased, high-temperature and high-pressure hot air is blown out through an air slit of a spinning template, the fibers are uniformly distributed, and the antibacterial effect is improved through charge treatment.
Description
Technical Field
The invention relates to the technical field of melt-blown cloth, in particular to an antibacterial polypropylene melt-blown cloth material.
Background
The melt-blown fabric is the most core material of the mask, the melt-blown fabric mainly takes polypropylene as a main raw material, the fiber diameter can reach 1-5 microns, the gaps are large, the structure is fluffy, the anti-wrinkle capacity is good, and the number and the surface area of fibers in unit area are increased by the superfine fibers with unique capillary structures, so that the melt-blown fabric has good filterability, shielding property, heat insulation property and oil absorption property.
When the mask on the existing market is manufactured, durable uneven charges cannot be formed on the surface of the sprayed fiber web, so that the antibacterial property is reduced, and the characteristic that the antibacterial property cannot be achieved is achieved.
Disclosure of Invention
The invention aims to solve the characteristic defects that the antibacterial property is reduced and the antibacterial property cannot be achieved due to the fact that a relatively durable non-uniform charge cannot be formed on the surface of a sprayed fiber web in the prior art, and provides an antibacterial polypropylene melt-blown fabric material.
In order to achieve the purpose, the invention adopts the following technical scheme:
an antibacterial polypropylene melt-blown fabric material is designed, and the specific formula comprises the following components in percentage by weight: 93-95 parts of polypropylene resin, 0.4-0.8 part of di-tert-butyl peroxide, 0.4-0.8 part of initiator, 0.04-1.3 parts of compound transparent nucleating agent, 0.4-0.9 part of erucamide, 0.03-0.25 part of antioxidant, 0.1-0.5 part of stabilizer, 0.5-1 part of coupling agent, 0.4-0.9 part of dispersant and 0.1-0.5 part of antibacterial assistant.
The antibacterial auxiliary agent is at least one of 2-chlorobenzaldehyde alanine copper, amino acid salicylaldehyde copper, 5-nitro salicylaldehyde zinc glycinate or 2-aminothiazole salicylaldehyde zinc.
The polypropylene resin is high-melt index polypropylene resin. The polypropylene resin has a melt index of not less than 1000g/10min (230 ℃/2.16 kg).
Further, the compound transparent nucleating agent consists of bis (p-chloro-substituted benzylidene) sorbitol, polyvinyl cyclohexane and dehydroabietic acid in a weight ratio of 2-3.
The invention also provides a preparation process of the antibacterial polypropylene melt-blown fabric material, which comprises the following steps:
m1, prolonging the treatment time of the polypropylene at different temperatures has the same change rule, the crystallinity is continuously increased, when the heat treatment time reaches the maximum value at the temperature, the treatment time is prolonged again, the variation of the crystallinity is not more than that of the treatment time at 90 ℃ to the crystallinity of the polypropylene, the influence of the treatment temperature on the crystallinity of the polypropylene is increased within sufficient treatment time and is lower than that of the crystallinity at 90 ℃, when the heat treatment temperature exceeds ninety ℃, the crystallinity is increased sharply, and when the heat treatment temperature is 140 ℃, the crystallinity reaches the maximum value and is increased by one tenth compared with the original crystallinity;
m2, putting the polypropylene resin particles subjected to heat treatment into a screw extruder in a vacuum conveying mode, before adding the polypropylene resin particles, cleaning small particle impurities contained in the polypropylene resin particles by using a winnowing machine, starting a power control switch of the screw extruder at the moment, forming a hot melt with constant pressure by electric heating melting of the screw extruder and rotary extrusion of a screw, adding di-tert-butyl peroxide, an initiator, a compound transparent nucleating agent, erucamide, an antioxidant, a stabilizer, a coupling agent, an antibacterial aid and a dispersing agent into the screw extruder, and uniformly mixing various raw materials by the rotating screw;
m3, forming a flowing melt from the mixed raw materials, filtering the melt through a melt filtering device, wherein a high-temperature-resistant filter screen is adopted as the filter screen, and after the melt is filtered, the melt is subjected to heat preservation through a section of melt pipeline with electric heating and passes through an accurate metering pump, so that the melt can be accurately metered in a quantitative manner to form stable spinning pressure and is sent to a melt distribution box;
m4, the melt distribution box body is provided with a plurality of sections of electric heating devices to ensure that the melt spinning temperature is uniform and stable, and a precisely designed distribution flow passage in the distribution box can ensure that the melt pressure of the hot melt at each point of the distribution box is consistent;
m5, the hot melt that has certain temperature constant pressure forms nascent fibre through the micropore on the spinneret of precision manufacturing, and helical fan blows into the heating jar with wind, through electrical heating, and high temperature high pressure is hot-blast to blow out through spinning template air gap, drives the fibre and advances and extend, and the extension can make nascent fibre macromolecule by low orientation, and the structure of no crystallization becomes orientation and the higher long filament structure of degree of crystallinity.
Preferably, the melt stream issuing from the orifices, which gives off a large amount of heat, must be heat-exchanged, and air at a temperature of between 25 and 30 ℃ issues from both sides, enabling homogeneous cooling of each filament.
Preferably, the reasonable configuration of the hot air volume and the hot air pressure plays an important role in normal production, and under the condition that the melt extrusion amount is certain, the hot air temperature and the hot air pressure can influence the fineness of the fibers sprayed by the melt.
Preferably, after the step M5 is completed, an electret electrostatic treatment is performed.
Preferably, the electret electrostatic treatment is carried out, specifically, the filtering performance of the formed fiber web can not meet the requirements of the mask, the electret electrostatic treatment is carried out, so that relatively permanent uneven charges are formed on the surface of the fiber web, and micro particles and bacteria in the air can be effectively adsorbed under the electrostatic action, so that the purpose of blocking the particles, body fluid and bacteria is achieved.
Preferably, finally, according to different size requirements, a high-speed splitting machine is used for splitting, packaging, coiling and warehousing.
The antibacterial polypropylene melt-blown fabric material provided by the invention has the beneficial effects that: according to the antibacterial polypropylene melt-blown fabric material, when melt-blown fabric is sprayed out, the influence of hot air quantity and pressure is utilized, the fineness of sprayed fibers is improved to reach the standard, the strength is increased, high-temperature and high-pressure hot air is blown out through an air gap of a spinning template, the fibers are uniformly distributed, and the antibacterial effect is improved through charge treatment.
Table 1 is a table of the antibacterial property test results of example 1 of the antibacterial polypropylene melt-blown fabric material provided by the present invention.
Table 2 is a table of the antibacterial property test results of example 2 of the antibacterial polypropylene melt-blown fabric material provided by the present invention.
Table 3 is a table of the antibacterial property test results of example 3 of the antibacterial polypropylene melt-blown fabric material provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to table 1, an antibacterial polypropylene melt-blown fabric material has the following specific formula by weight: 93 parts of polypropylene resin, 0.4 part of di-tert-butyl peroxide, 0.4 part of azo initiator, 0.04 part of compound transparent nucleating agent, 0.4 part of erucamide, 0.03 part of aromatic amine antioxidant, 0.1 part of calcium stearate stabilizer, 0.5 part of titanate coupling agent, 0.4 part of polyphosphate dispersing agent and 0.3 part of antibacterial assistant. Further, the azo initiator is azobisisobutyramidine hydrochloride. The antioxidant is dialkyl diphenylamine. The titanate coupling agent is isopropyl triisostearoyl titanate. The dispersant is sodium hexametaphosphate. The compound transparent nucleating agent consists of di (p-chloro-substituted benzylidene) sorbitol, polyvinyl cyclohexane and dehydroabietic acid according to a weight ratio of 2.5; the antibacterial auxiliary agent is 2-chlorobenzaldehyde alanine copper and amino acid salicylaldehyde copper.
The invention also provides a preparation process of the antibacterial polypropylene melt-blown fabric material, which comprises the following steps:
m1, prolonging the treatment time of the polypropylene at different temperatures has the same change rule, the crystallinity is continuously increased, when the heat treatment time reaches the maximum value at the temperature, the treatment time is prolonged again, the variation of the crystallinity is not more than that of the treatment time at 90 ℃ to the crystallinity of the polypropylene, the influence of the treatment temperature on the crystallinity of the polypropylene is increased within sufficient treatment time and is lower than that of the crystallinity at 90 ℃, when the heat treatment temperature exceeds ninety ℃, the crystallinity is increased sharply, and when the heat treatment temperature is 140 ℃, the crystallinity reaches the maximum value and is increased by one tenth compared with the original crystallinity;
m2, putting the polypropylene resin particles after heat treatment into a screw extruder in a vacuum conveying mode, before adding the polypropylene resin particles, cleaning small particle impurities contained in the polypropylene resin particles by using a winnowing machine, turning on a power control switch of the screw extruder at the moment, forming a hot melt with constant pressure by electric heating melting of the screw extruder and rotary extrusion of a screw, adding di-tert-butyl peroxide, an initiator, a compound transparent nucleating agent, erucamide, an antioxidant, a stabilizer, a coupling agent, an antibacterial assistant and a dispersing agent into the screw extruder, and uniformly mixing various raw materials by a rotating screw;
m3, forming a flowing melt from the mixed raw materials, filtering the melt through a melt filtering device, wherein the melt is subjected to heat preservation through a section of melt pipeline with electric heating after being filtered by a high-temperature-resistant filter screen, and passing through an accurate metering pump, so that the melt can be accurately metered in a quantitative manner to form stable spinning pressure and then is sent to a melt distribution box;
m4, the melt distribution box body is provided with a plurality of sections of electric heating devices to ensure that the melt spinning temperature is uniform and stable, and a precisely designed distribution flow passage in the distribution box can ensure that the melt pressure of the hot melt at each point of the distribution box is consistent;
m5, the hot melt that has certain temperature constant pressure forms primary fiber through the micropore on the spinneret of precision manufacturing, helical fan blows into the heating jar with wind, through electrical heating, high temperature high pressure hot-blast blows out through spinning template air gap, it advances and extends to drive the fibre, the extension can make primary fiber macromolecule by the low orientation, the structure of nos crystallization becomes orientation and the higher filament structure of degree of crystallinity, melt trickle from the spinneret orifice spun, emit a large amount of heat, must carry out the heat exchange to this, the air of temperature between 25 degrees centigrade is spouted from both sides, can carry out the homogeneity cooling to every monofilament homoenergetic, the rational configuration of hot-air amount of wind and pressure, have the important effect under the certain circumstances of fuse-element extrusion capacity to normal production, hot-air temperature and pressure all can influence the fibre fineness that the fuse-element sprayed.
Performing electret electrostatic treatment, wherein the electret electrostatic treatment is specifically that the filtering performance of the formed fiber web can not meet the requirement of the mask, the electret electrostatic treatment can form permanent uneven charges on the surface of the fiber web, and micro particles and bacteria in the air can be effectively adsorbed under the electrostatic action, so that the aim of blocking the particles, body fluid and bacteria is fulfilled;
and finally, according to different size requirements, cutting by using a high-speed cutting machine, packaging into rolls and warehousing.
Table 1 shows the results of the antibacterial test of the antibacterial polypropylene meltblown fabric material of example 1 of the present invention:
TABLE 1
The detection basis and the method adopt an AATCC 100-2012 textile antibacterial test evaluation method.
When the melt-blown fabric is sprayed, the fineness of the sprayed fiber is improved to reach the standard by utilizing the influence of the air quantity and the pressure of hot air, so that the strength is increased, high-temperature and high-pressure hot air is blown out through the spinning template air, the fibers are uniformly distributed, and the antibacterial effect is improved through charge treatment.
Example 2
Referring to table 1, an antibacterial polypropylene melt-blown fabric material has the following specific formula by weight: 94 parts of polypropylene resin, 0.6 part of di-tert-butyl peroxide, 0.6 part of initiator, 0.08 part of compound transparent nucleating agent, 0.7 part of erucamide, 0.15 part of antioxidant, 0.4 part of stabilizer, 0.7 part of coupling agent, 0.6 part of dispersant and 0.2 part of antibacterial assistant; the antibacterial auxiliary agent consists of 2-chlorobenzaldehyde alanine copper and amino acid salicylaldehyde copper according to the weight ratio of 1.
The invention also provides a preparation process of the antibacterial polypropylene melt-blown cloth material, which comprises the following steps:
m1, prolonging the treatment time of the polypropylene at different temperatures has the same change rule, the crystallinity is continuously increased, when the heat treatment time reaches the maximum value at the temperature, the treatment time is prolonged again, the variation of the crystallinity is not more than that of the treatment time at 90 ℃ to the crystallinity of the polypropylene, the influence of the treatment temperature on the crystallinity of the polypropylene is increased within sufficient treatment time and is lower than that of the crystallinity at 90 ℃, when the heat treatment temperature exceeds ninety ℃, the crystallinity is increased sharply, and when the heat treatment temperature is 140 ℃, the crystallinity reaches the maximum value and is increased by one tenth compared with the original crystallinity;
m2, putting the polypropylene resin particles subjected to heat treatment into a screw extruder in a vacuum conveying mode, before adding the polypropylene resin particles, cleaning small particle impurities contained in the polypropylene resin particles by using a winnowing machine, starting a power control switch of the screw extruder at the moment, forming a hot melt with constant pressure by electric heating melting of the screw extruder and rotary extrusion of a screw, adding di-tert-butyl peroxide, an initiator, a compound transparent nucleating agent, erucamide, an antioxidant, a stabilizer, a coupling agent and a dispersing agent into the screw extruder, and uniformly mixing various raw materials by the rotating screw;
m3, forming a flowing melt from the mixed raw materials, filtering the melt through a melt filtering device, wherein a high-temperature-resistant filter screen is adopted as the filter screen, and after the melt is filtered, the melt is subjected to heat preservation through a section of melt pipeline with electric heating and passes through an accurate metering pump, so that the melt can be accurately metered in a quantitative manner to form stable spinning pressure and is sent to a melt distribution box;
m4, the melt distribution box body is provided with a plurality of sections of electric heating devices to ensure that the melt spinning temperature is uniform and stable, and a precisely designed distribution flow passage in the distribution box can ensure that the melt pressure of the hot melt at each point of the distribution box is consistent;
m5, the hot melt that has certain temperature constant pressure forms primary fiber through the micropore on the spinneret of precision manufacturing, helical fan blows into the heating jar with wind, through electrical heating, high temperature high pressure hot-blast blows out through spinning template air gap, it advances and extends to drive the fibre, the extension can make primary fiber macromolecule by the low orientation, the structure that does not have the crystallization becomes orientation and the higher long filament structure of degree of crystallinity, melt trickle from the spinneret orifice blowout, emit a large amount of heat, must carry out the heat exchange to this, the air of temperature between 27 degrees centigrade spouts from both sides, can all carry out the homogeneity cooling to every monofilament, the rational configuration of hot-air amount of wind and pressure, have the important effect under the certain circumstances of fuse-element extrusion capacity to normal production, hot-air temperature and pressure all can influence the fibre fineness that the fuse-element sprayed.
Performing electret electrostatic treatment, wherein the electret electrostatic treatment is specifically that the filtering performance of the formed fiber web can not meet the requirement of the mask, the electret electrostatic treatment can form permanent uneven charges on the surface of the fiber web, and micro particles and bacteria in the air can be effectively adsorbed under the electrostatic action, so that the aim of blocking the particles, body fluid and bacteria is fulfilled;
and finally, according to different size requirements, cutting by using a high-speed cutting machine, packaging into rolls and warehousing.
Table 2 shows the results of the antibacterial test of the antibacterial polypropylene meltblown fabric material of example 2 of the present invention:
TABLE 2
When the melt-blown fabric is sprayed out, the fineness of sprayed fibers is improved to reach the standard by utilizing the influence of hot air quantity and pressure, so that the strength is increased, high-temperature and high-pressure hot air is blown out through a spinning template, the fibers are uniformly distributed, and the antibacterial effect is improved through charge treatment.
Example 3
Referring to table 1, an antibacterial polypropylene melt-blown fabric material has the following specific formula by weight: 95 parts of polypropylene resin, 0.8 part of di-tert-butyl peroxide, 0.8 part of initiator, 1.3 parts of compound transparent nucleating agent, 0.9 part of erucamide, 0.25 part of antioxidant, 0.5 part of stabilizer, 1 part of coupling agent, 0.9 part of dispersant and 0.4 part of antibacterial assistant; the antibacterial auxiliary agent is 2-aminothiazole shrinkage salicylaldehyde zinc.
The invention also provides a preparation process of the antibacterial polypropylene melt-blown cloth material, which comprises the following steps:
m1, prolonging the treatment time of the polypropylene at different temperatures has the same change rule, the crystallinity is continuously increased, when the heat treatment time reaches the maximum value at the temperature, the treatment time is prolonged again, the variation of the crystallinity is not more than that of the treatment time at 90 ℃ to the crystallinity of the polypropylene, the influence of the treatment temperature on the crystallinity of the polypropylene is increased within sufficient treatment time and is lower than that of the crystallinity at 90 ℃, when the heat treatment temperature exceeds ninety ℃, the crystallinity is increased sharply, and when the heat treatment temperature is 140 ℃, the crystallinity reaches the maximum value and is increased by one tenth compared with the original crystallinity;
m2, putting the polypropylene resin particles subjected to heat treatment into a screw extruder in a vacuum conveying mode, before adding the polypropylene resin particles, cleaning small particle impurities contained in the polypropylene resin particles by using a winnowing machine, starting a power control switch of the screw extruder at the moment, forming a hot melt with constant pressure by electric heating melting of the screw extruder and rotary extrusion of a screw, adding di-tert-butyl peroxide, an initiator, a compound transparent nucleating agent, erucamide, an antioxidant, a stabilizer, a coupling agent, an antibacterial aid and a dispersing agent into the screw extruder, and uniformly mixing various raw materials by the rotating screw;
m3, forming a flowing melt from the mixed raw materials, filtering the melt through a melt filtering device, wherein the melt is subjected to heat preservation through a section of melt pipeline with electric heating after being filtered by a high-temperature-resistant filter screen, and passing through an accurate metering pump, so that the melt can be accurately metered in a quantitative manner to form stable spinning pressure and then is sent to a melt distribution box;
m4, the melt distribution box body is provided with a plurality of sections of electric heating devices to ensure that the melt spinning temperature is uniform and stable, and a precisely designed distribution flow passage in the distribution box can ensure that the melt pressure of the hot melt at each point of the distribution box is consistent;
m5, the hot melt that has certain temperature constant pressure forms primary fiber through the micropore on the spinneret of precision manufacturing, helical fan blows into the heating jar with wind, through electrical heating, high temperature high pressure hot-blast blows out through spinning template air gap, it advances and extends to drive the fibre, the extension can make primary fiber macromolecule by the low orientation, the structure of nos crystallization becomes orientation and the higher filament structure of degree of crystallinity, melt trickle from the spinneret orifice spun, emit a large amount of heat, must carry out the heat exchange to this, the air of temperature between 30 degrees centigrade is spouted from both sides, can carry out the homogeneity cooling to every monofilament homoenergetic, the rational configuration of hot-air amount of wind and pressure, have the important effect under the certain circumstances of fuse-element extrusion capacity to normal production, hot-air temperature and pressure all can influence the fibre fineness that the fuse-element sprayed.
Performing electret electrostatic treatment, wherein the electret electrostatic treatment is specifically that the filtering performance of the formed fiber web can not meet the requirement of the mask, the electret electrostatic treatment can form permanent uneven charges on the surface of the fiber web, and micro particles and bacteria in the air can be effectively adsorbed under the electrostatic action, so that the aim of blocking the particles, body fluid and bacteria is fulfilled;
and finally, according to different size requirements, cutting by using a high-speed cutting machine, packaging into rolls and warehousing.
Table 3 shows the results of the antibacterial test of the antibacterial polypropylene meltblown fabric material of example 3 of the present invention:
TABLE 3
When the melt-blown fabric is sprayed, the fineness of the sprayed fiber is improved to reach the standard by utilizing the influence of the air quantity and the pressure of hot air, so that the strength is increased, high-temperature and high-pressure hot air is blown out through the spinning template air, the fibers are uniformly distributed, and the antibacterial effect is improved through charge treatment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. An antibacterial polypropylene melt-blown cloth material is characterized in that the specific formula comprises the following components in percentage by weight: 93-95 parts of polypropylene resin, 0.4-0.8 part of di-tert-butyl peroxide, 0.4-0.8 part of initiator, 0.04-1.3 parts of compound transparent nucleating agent, 0.4-0.9 part of erucamide, 0.03-0.25 part of antioxidant, 0.1-0.5 part of stabilizer, 0.5-1 part of coupling agent, 0.4-0.9 part of dispersant and 0.1-0.5 part of antibacterial assistant.
2. The antibacterial polypropylene melt-blown fabric material according to claim 1, wherein the antibacterial auxiliary agent is at least one of copper 2-chlorobenzaldehyde alanine, copper amino acid salicylaldehyde, zinc 5-nitro salicylaldehyde glycine or zinc 2-aminothiazole salicylaldehyde zinc.
3. The preparation process of the antibacterial polypropylene melt-blown cloth material according to claim 1, which is characterized by comprising the following steps:
m1, prolonging the treatment time at different temperatures of polypropylene has the same change rule, the crystallinity is continuously increased, when the heat treatment time reaches the maximum value at the temperature, the treatment time is prolonged again, the variation of the crystallinity is not more than the variation of the treatment time at 90 ℃ on the crystallinity of the polypropylene, the influence of the treatment temperature on the crystallinity of the polypropylene is lower than that at 90 ℃ within sufficient treatment time, when the heat treatment temperature exceeds ninety ℃, the crystallinity is sharply increased, and when the heat treatment temperature is 140 ℃, the crystallinity reaches the maximum value and is increased by one tenth compared with the original crystallinity;
m2, putting the polypropylene resin particles after heat treatment into a screw extruder in a vacuum conveying mode, before adding the polypropylene resin particles, cleaning small particle impurities contained in the polypropylene resin particles by using a winnowing machine, turning on a power control switch of the screw extruder at the moment, forming a hot melt with constant pressure by electric heating melting of the screw extruder and rotary extrusion of a screw, adding di-tert-butyl peroxide, an initiator, a compound transparent nucleating agent, erucamide, an antioxidant, a stabilizer, a coupling agent, an antibacterial assistant and a dispersing agent into the screw extruder, and uniformly mixing various raw materials by a rotating screw;
m3, forming a flowing melt from the mixed raw materials, filtering the melt through a melt filtering device, wherein the melt is subjected to heat preservation through a section of melt pipeline with electric heating after being filtered by a high-temperature-resistant filter screen, and passing through an accurate metering pump, so that the melt can be accurately metered in a quantitative manner to form stable spinning pressure and then is sent to a melt distribution box;
m4, the melt distribution box body is provided with a plurality of sections of electric heating devices to ensure that the melt spinning temperature is uniform and stable, and a precisely designed distribution flow passage in the distribution box can ensure that the melt pressure of the hot melt at each point of the distribution box is consistent;
m5, the hot melt that has certain temperature constant pressure forms nascent fibre through the micropore on the spinneret of precision manufacturing, and helical fan blows into the heating jar with wind, through electrical heating, and high temperature high pressure is hot-blast to blow out through spinning template air gap, drives the fibre and advances and extend, and the extension can make nascent fibre macromolecule by low orientation, and the structure of no crystallization becomes orientation and the higher long filament structure of degree of crystallinity.
4. The process for preparing antibacterial polypropylene melt-blown cloth material according to claim 3, wherein in the M5 step, the melt stream ejected from the spinneret holes emits a large amount of heat, and heat exchange is necessary for the heat exchange, and air with the temperature of 25-30 ℃ is ejected from both sides, so that each filament can be uniformly cooled.
5. The preparation process of the antibacterial polypropylene melt-blown fabric material according to claim 4, wherein the reasonable configuration of hot air volume and pressure has an important effect on normal production, and under the condition of a certain melt extrusion amount, the hot air temperature and pressure can influence the fineness of the melt-blown fibers.
6. The process for preparing the antibacterial polypropylene melt-blown cloth material according to claim 3, wherein after the M5 step is completed, electret electrostatic treatment is performed.
7. The preparation process of the antibacterial polypropylene melt-blown fabric material according to claim 6, wherein the electret electrostatic treatment is specifically that the filtering performance of the formed fiber web can not meet the requirements of a mask, the electret electrostatic treatment is adopted to form relatively durable uneven charges on the surface of the fiber web, and under the electrostatic action, tiny particles and bacteria in air can be effectively adsorbed to achieve the purpose of blocking the particles, body fluid and bacteria.
8. The preparation process of the antibacterial polypropylene melt-blown cloth material according to claim 3, wherein finally, according to different size requirements, the cloth material is cut by a high-speed cutting machine, packaged into rolls and warehoused.
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