WO2022127888A1 - Antibacterial material - Google Patents

Antibacterial material Download PDF

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Publication number
WO2022127888A1
WO2022127888A1 PCT/CN2021/139014 CN2021139014W WO2022127888A1 WO 2022127888 A1 WO2022127888 A1 WO 2022127888A1 CN 2021139014 W CN2021139014 W CN 2021139014W WO 2022127888 A1 WO2022127888 A1 WO 2022127888A1
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Prior art keywords
fibers
silicon nitride
activated carbon
antibacterial
antibacterial material
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PCT/CN2021/139014
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French (fr)
Chinese (zh)
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魏峥
罗仁昱
魏汝超
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超能高新材料股份有限公司
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Publication of WO2022127888A1 publication Critical patent/WO2022127888A1/en

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/30—Antimicrobial, e.g. antibacterial
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
    • D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds 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
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/91—Bacteria; Microorganisms
    • 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
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • 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
    • D06M2101/40—Fibres of carbon

Definitions

  • the present invention provides an antibacterial material comprising the combination of silicon nitride and activated carbon.
  • the antibacterial material can greatly improve the antiviral and antibacterial capabilities of the filter material and the antibacterial cloth, and increase the adsorption of odors.
  • the fabric with porous properties is very suitable as a gas filter material such as masks and air conditioners, but it is easy to breed bacteria or produce odor problems in the pores of the fabric after long-term use. This problem can be improved by an activated carbon non-woven fabric structure (M522734) containing silver ions. .
  • the present invention provides an antibacterial material comprising a combination of silicon nitride and activated carbon.
  • silicon nitride can reduce the moisture condensed on the surface of the activated carbon, so that the activated carbon maintains the original porous characteristics, thereby achieving a longer-lasting effect of adsorption capacity; and using silicon nitride to adsorb bacteria and viruses on the filter material It can greatly improve the antiviral and antibacterial capabilities of the material, and increase the adsorption of odors.
  • the present invention provides an antibacterial material, which comprises a combination of activated carbon and silicon nitride.
  • the activated carbon material has porous characteristics and can actively absorb odors, viruses and bacteria, and the silicon nitride material has unstable properties.
  • Active functional groups such as dangling bonds, unsaturated bonds and/or other unpaired bonds (free bonding) make the surface react strongly with water molecules and release ammonia (NH 3 ), which is then adsorbed on the surface of the activated carbon material The bacteria or viruses will lose their activity under the action of ammonia.
  • the invention has better antiviral and antibacterial properties.
  • the invention provides an antibacterial material, wherein the proportion of silicon nitride is 1-99 wt % of the total weight of the two materials, silicon nitride and activated carbon.
  • the present invention provides an antibacterial material, wherein the silicon nitride is a mixed phase containing an ⁇ phase and a ⁇ phase, and the ⁇ phase accounts for 1-99% of the silicon nitride.
  • the silicon nitride can be in the form of silicon nitride powder or pre-formed silicon nitride, and the above-mentioned pre-formed method is not limited to adhesion, coating, powder sintering, weaving silicon nitride fibers or other It is realized by attaching to natural or artificial fibers;
  • the natural fibers can be plant fibers, wood fibers, animal fibers or mineral fibers, such as cotton, hemp, flax, ground wood pulp, silk, asbestos, etc.;
  • the artificial fibers The fibers can be regenerated fibers, semi-synthetic fibers and synthetic fibers, such as rayon, acetate fiber, nylon, oren, dacron and the like.
  • the activated carbon can be in the form of activated carbon powder, activated carbon fiber or pre-shaped activated carbon, and the above-mentioned pre-shaped activated carbon can be attached to natural or artificial fibers by heating, coating or other methods.
  • the natural fibers can be plant fibers, wood fibers, animal fibers or mineral fibers, such as cotton, hemp, flax, ground wood pulp, silk, asbestos, etc.; the man-made fibers can be regenerated fibers, semi-synthetic fibers or synthetic fibers, Such as rayon, acetate fiber, nylon, Oron, Dacron and so on.
  • the combination sequence of the activated carbon and the silicon nitride does not affect its main functions and properties.
  • the combination of activated carbon and silicon nitride includes chemical combination, physical contact and mixing, and combination and mixing both chemically and physically.
  • FIG. 1 is a schematic diagram of the first embodiment of the present invention, wherein 100 is an antibacterial material of the present invention, 101 is a silicon nitride material, and 102 is an activated carbon material;
  • FIG. 2 is a schematic diagram of the second embodiment of the present invention, wherein 200 is an antibacterial material of the present invention, 201 is a mixed particle of silicon nitride and activated carbon; 202 is a warp-woven polyester fiber cloth;
  • FIG. 3 is a schematic diagram of a third embodiment of the present invention, wherein 300 is an antibacterial material of the present invention, 301 is an activated carbon material, 302 is a polyester fiber non-woven fabric, and 303 is a silicon nitride material.
  • FIG. 1 shows the first embodiment of the present invention, which discloses an antibacterial material 100 of the present invention, which includes a silicon nitride material 101 and an activated carbon material 102 .
  • the silicon nitride material 101 is silicon nitride powder. 10wt% of the whole weight, and contains a mixed phase of ⁇ phase and ⁇ phase, and the ratio of ⁇ phase is 10%
  • the activated carbon material 102 is activated carbon fiber cloth
  • the silicon nitride material 101 is sprayed after being dispersed in a liquid to realize the silicon nitride material. 101 is fixed on the surface of the activated carbon material 102 .
  • the antibacterial material 100 is used as a mask or outer protective clothing.
  • the bacteria, viruses or odor molecules will be adsorbed by the activated carbon material 102 with porous characteristics.
  • the silicon nitride material 101 has active functional groups such as unstable dangling bonds, unsaturated bonds and/or other unpaired bonds, which can strongly interact with moisture in the air and release ammonia. (NH 3 ), the chemical formula is as follows:
  • the RNA in bacteria and viruses will be induced to undergo alkaline transesterification exchange, so that the bacteria and viruses adsorbed on the activated carbon material 102 will become inactive and cannot proliferate further.
  • moisture will preferentially interact with nitrogen.
  • Silica acts, the probability of condensation on the surface of the activated carbon material 102 is reduced, and the ability of activated carbon to absorb odors is improved.
  • the antibacterial material of the present invention can be used as a mask or protective clothing, which can have better antiviral and antibacterial properties performance.
  • the second embodiment of the present invention is shown in FIG. 2, which discloses the antibacterial material 200 of the present invention, wherein the silicon nitride material and the activated carbon material are mixed by wet ball milling to form mixed particles 201, and the weight of the silicon nitride material during mixing accounts for nitrogen
  • the total weight of the mixture of silicon carbide and activated carbon material is 5%
  • the silicon nitride contains a mixed phase of ⁇ phase and ⁇ phase, and the proportion of ⁇ phase is 30%.
  • the mixed particles 201 are fixed to the polyester after weaving by liquid coating
  • polyester fiber is often used as materials such as clothes, pants, hats, etc. in daily life. Therefore, through this combination, the functionality of the original fabric is further improved, so that the finished product can have antiviral and antibacterial effects.
  • FIG. 3 discloses a cross-sectional view 300 of the antibacterial material of the present invention, wherein the activated carbon material 301 is high-efficiency powdered activated carbon, which has been firmly adhered to the polyester fiber nonwoven fabric 302 by a high temperature atmosphere during the manufacturing process
  • the silicon nitride material 303 is fixed on the fiber surface of the polyester fiber non-woven fabric 302 by liquid coating.
  • the weight of the silicon nitride material 303 accounts for 20% of the total weight of the silicon nitride and the activated carbon material, and the nitrided Silicon contains a mixture of ⁇ -phase and ⁇ -phase, and the proportion of ⁇ -phase is 35%.
  • the polyester fiber non-woven fabric 302 can have anti-disease and antibacterial effects, and as a filter product, it can improve the anti-bacterial properties. Virus and antibacterial ability.
  • the antibacterial effect test was carried out using the antibacterial material of the present invention prepared in Example 1.
  • the test strain was Klebsiella pneumoniae (Klebsiella pneumoniae; deposit number ATCC 4352)
  • the initial colony forming unit was 2.2 ⁇ 10 5 (CFU/sample); after 24 hours, the colony forming unit on the antibacterial material prepared in Example 1 was 5.1 ⁇ 10 7 (CFU/sample); in the control group The colony forming unit on the 2.5 x 108 (CFU/sample). It can be seen from the above results that, compared with the control group, the antibacterial material prepared in Example 1 of the present invention can reduce the colony formation by 79.5%.
  • test strain is Staphylococcus aureus (MRSA); the deposit number is ATCC 33591)
  • the initial colony forming unit was 1.3 ⁇ 10 5 (CFU/sample); after 24 hours, the colony forming unit on the antibacterial material prepared in Example 1 was 8.3 ⁇ 10 4 (CFU/sample); in the control group The colony forming unit on 1.6 x 108 (CFU/sample). It can be seen from the above results that, compared with the control group, the antibacterial material prepared in Example 1 of the present invention can reduce the colony formation by 94.8%.

Abstract

The present invention provides an antibacterial material, comprising a combination of silicon nitride and activated carbon. The antibacterial material can greatly improve antiviral and antibacterial capabilities of filter materials and antibacterial cloth, and increase the adsorption of odors.

Description

一种抗菌材料an antibacterial material
本申请要求于2020年12月18日提交到中国国家知识产权局的发明名称为“一种抗菌材料”的中国专利申请202011509482.5的优先权，其内容通过引用以整体并入本文。This application claims priority to Chinese Patent Application No. 202011509482.5, filed with the State Intellectual Property Office of China on December 18, 2020, entitled "An Antibacterial Material", the content of which is incorporated herein by reference in its entirety.
技术领域technical field
本发明提供一种抗菌材料，包含氮化硅与活性炭之结合。所述抗菌材料可以大幅提升滤材与抗菌布料的抗病毒与抗菌能力，并且增加对异味的吸附。The present invention provides an antibacterial material comprising the combination of silicon nitride and activated carbon. The antibacterial material can greatly improve the antiviral and antibacterial capabilities of the filter material and the antibacterial cloth, and increase the adsorption of odors.
背景技术Background technique
具有多孔隙特性的布料，非常适合作为口罩、空调等气体过滤材料，但长期使用易在布料孔隙内孳生细菌或产生异味问题，能通过一种含有银离子之活性炭不织布结构(M522734)改善此问题。The fabric with porous properties is very suitable as a gas filter material such as masks and air conditioners, but it is easy to breed bacteria or produce odor problems in the pores of the fabric after long-term use. This problem can be improved by an activated carbon non-woven fabric structure (M522734) containing silver ions. .
然而活性炭接触空气中水气时，水分会在活性炭多孔隙表面凝结，导致吸附效果下降，且上述银离子或其他抗菌材料都需要接触才能达成抗菌效果，若材料无法密集的区域会导致抗菌性能下降的问题，同时银离子对人体是否有生物毒性及银离子生产价格，都为上述应用的限制。However, when the activated carbon contacts the moisture in the air, the moisture will condense on the porous surface of the activated carbon, resulting in a decrease in the adsorption effect, and the above-mentioned silver ions or other antibacterial materials need to be contacted to achieve the antibacterial effect. At the same time, whether silver ions have biological toxicity to the human body and the production price of silver ions are all limitations of the above applications.
近年开始针对不具有生物毒性的抗病或抗菌材料开发，包括使用氮化硅与氮化硼烧结体组成抗菌材料(JP2020-19677A)，或氮化硅粉末作为涂层加工于对象表面，作为抵抗病毒的材料(US2020/0079651A1)，但上述应用仅单纯提供灭菌功能，不具备吸附能力，因此无法提供完整之抗病毒、抗菌及消除异味之防护。In recent years, it has begun to develop anti-disease or antibacterial materials without biological toxicity, including the use of silicon nitride and boron nitride sintered body to form antibacterial materials (JP2020-19677A), or silicon nitride powder as a coating on the surface of the object, as a resistance Virus material (US2020/0079651A1), but the above application only provides sterilization function and does not have adsorption capacity, so it cannot provide complete anti-virus, antibacterial and odor elimination protection.
发明内容SUMMARY OF THE INVENTION
为解决上述问题，本发明提供一种抗菌材料，包含氮化硅与活性炭之结合。本发明人意外发现，氮化硅能降低凝结在活性炭表面的水分，使活性炭维持原有多孔隙特性，进而达到吸附能力更持久的功效；并利用氮化硅将吸附于滤材之细菌、病毒破坏，如此可大幅提升材料的抗病毒与抗菌能力，并且增加对异味的吸附。In order to solve the above problems, the present invention provides an antibacterial material comprising a combination of silicon nitride and activated carbon. The inventors of the present invention unexpectedly found that silicon nitride can reduce the moisture condensed on the surface of the activated carbon, so that the activated carbon maintains the original porous characteristics, thereby achieving a longer-lasting effect of adsorption capacity; and using silicon nitride to adsorb bacteria and viruses on the filter material It can greatly improve the antiviral and antibacterial capabilities of the material, and increase the adsorption of odors.
基于上述目的，本发明提供一种抗菌材料，该材料包含一活性炭与氮化硅之结合，活性炭材料具有多孔隙特性，主动吸附异味、病毒及细菌，再者氮化硅材料中具有不稳定之悬键(dangling bond)、不饱和键和/或其他未配对键合(free bonding)等活性官能基，使表面会强力与水分子反应并且释出氨(NH 3)，而吸附于活性炭材料表面之细菌或病毒会在氨作用下失去活性，同时水分子在强力与氮化硅材料结合的状况下，会减少水分凝结于活性炭表面，在交互作用下延长原本活性炭材料的吸附效果，并使本发明具有更佳的抗病毒与抗菌性能。 Based on the above purpose, the present invention provides an antibacterial material, which comprises a combination of activated carbon and silicon nitride. The activated carbon material has porous characteristics and can actively absorb odors, viruses and bacteria, and the silicon nitride material has unstable properties. Active functional groups such as dangling bonds, unsaturated bonds and/or other unpaired bonds (free bonding) make the surface react strongly with water molecules and release ammonia (NH 3 ), which is then adsorbed on the surface of the activated carbon material The bacteria or viruses will lose their activity under the action of ammonia. At the same time, when the water molecules are strongly combined with the silicon nitride material, the condensation of water on the surface of the activated carbon will be reduced, and the adsorption effect of the original activated carbon material will be prolonged under the interaction. The invention has better antiviral and antibacterial properties.
本发明提供一种抗菌材料，其中氮化硅所占比例为氮化硅与活性炭两种材料总重量的1～99wt％。The invention provides an antibacterial material, wherein the proportion of silicon nitride is 1-99 wt % of the total weight of the two materials, silicon nitride and activated carbon.
本发明提供一种抗菌材料，其中该氮化硅为含有α相及β相之混合相，而α相占氮化硅之比例为1～99％。The present invention provides an antibacterial material, wherein the silicon nitride is a mixed phase containing an α phase and a β phase, and the α phase accounts for 1-99% of the silicon nitride.
在本发明提供的抗菌材料中，其中氮化硅可为氮化硅粉末或预成型氮化硅的形式，上述预成型之方式不限于黏着、涂布、粉末烧结、编织氮化硅纤维或其他方式附着于天然或人造纤维等方式而实现；所述天然纤维可为植物纤维、木纤维、动物纤维或矿物纤维，如棉、麻、亚麻、磨木纸浆、蚕丝、石绵等；所述人造纤维可为再生纤维、半合成纤维和合成纤维，如嫘萦、醋酸纤维、耐纶、奥纶、达克纶等。In the antibacterial material provided by the present invention, the silicon nitride can be in the form of silicon nitride powder or pre-formed silicon nitride, and the above-mentioned pre-formed method is not limited to adhesion, coating, powder sintering, weaving silicon nitride fibers or other It is realized by attaching to natural or artificial fibers; the natural fibers can be plant fibers, wood fibers, animal fibers or mineral fibers, such as cotton, hemp, flax, ground wood pulp, silk, asbestos, etc.; the artificial fibers The fibers can be regenerated fibers, semi-synthetic fibers and synthetic fibers, such as rayon, acetate fiber, nylon, oren, dacron and the like.
在本发明提供的抗菌材料中，其中活性炭可为活性炭粉末、活性炭纤维或预成型之活性炭的形式，上述预成型之活性炭可通过加热、涂布或其他方式附着于天然或人造纤维而实现；所述天然纤维可为植物纤维、木纤维、动物纤维或矿物纤维，如棉、麻、亚麻、磨木纸浆、蚕丝、石绵等；所述人造纤维可为再生纤维、半合成纤维或合成纤维，如嫘萦、醋酸纤维、耐纶、奥纶、达克纶等。In the antibacterial material provided by the present invention, the activated carbon can be in the form of activated carbon powder, activated carbon fiber or pre-shaped activated carbon, and the above-mentioned pre-shaped activated carbon can be attached to natural or artificial fibers by heating, coating or other methods. The natural fibers can be plant fibers, wood fibers, animal fibers or mineral fibers, such as cotton, hemp, flax, ground wood pulp, silk, asbestos, etc.; the man-made fibers can be regenerated fibers, semi-synthetic fibers or synthetic fibers, Such as rayon, acetate fiber, nylon, Oron, Dacron and so on.
在本发明提供的抗菌材料中，所述活性炭与氮化硅之结合顺序不无影响其主要功能与特性。In the antibacterial material provided by the present invention, the combination sequence of the activated carbon and the silicon nitride does not affect its main functions and properties.
在本发明中，所述活性炭与氮化硅之结合，包括两者以化学方式相结合，也包括两者以物理方式相接触、混合，也包括兼有化学方式和物理方式的结合和混合。In the present invention, the combination of activated carbon and silicon nitride includes chemical combination, physical contact and mixing, and combination and mixing both chemically and physically.
为让上述目的、技术特征和优点能更浅显易懂，下文以优选实 施例配合附图进行详细说明。In order to make the above objects, technical features and advantages more easily understood, the following detailed description is given with reference to the preferred embodiments in conjunction with the accompanying drawings.
附图说明Description of drawings
图1系本发明之第一实施例示意图，其中100为本发明的一种抗菌材料，101为氮化硅材料，102为活性炭材料；1 is a schematic diagram of the first embodiment of the present invention, wherein 100 is an antibacterial material of the present invention, 101 is a silicon nitride material, and 102 is an activated carbon material;
图2系本发明之第二实施例示意图，其中200为本发明的一种抗菌材料，201为氮化硅与活性炭之混合颗粒；202为经编织的聚酯纤维布；2 is a schematic diagram of the second embodiment of the present invention, wherein 200 is an antibacterial material of the present invention, 201 is a mixed particle of silicon nitride and activated carbon; 202 is a warp-woven polyester fiber cloth;
图3系本发明之第三实施例示意图，其中300为本发明的一种抗菌材料，301为活性炭材料，302为聚酯纤维无纺布，303为氮化硅材料。3 is a schematic diagram of a third embodiment of the present invention, wherein 300 is an antibacterial material of the present invention, 301 is an activated carbon material, 302 is a polyester fiber non-woven fabric, and 303 is a silicon nitride material.
具体实施方式Detailed ways
在下文的实施方式中所述的位置关系，包括：上，下，左和右，若无特别指明，皆是以图式中组件绘示的方向为基准。The positional relationships described in the following embodiments, including: up, down, left and right, are based on the directions shown in the drawings unless otherwise specified.
实施例1Example 1
请参阅图1为本发明的第一实施例，其中揭示本发明之抗菌材料100，其中包括氮化硅材料101与活性炭材料102，本实施例中氮化硅材料101为氮化硅粉末，占整体重量的10wt％，且含有α相及β相之混合相，而α相比例为10％，活性炭材料102为活性炭纤维布，氮化硅材料101通过液体分散后进行喷涂，实现氮化硅材料101固定于活性炭材料102表面。Please refer to FIG. 1 , which shows the first embodiment of the present invention, which discloses an antibacterial material 100 of the present invention, which includes a silicon nitride material 101 and an activated carbon material 102 . In this embodiment, the silicon nitride material 101 is silicon nitride powder. 10wt% of the whole weight, and contains a mixed phase of α phase and β phase, and the ratio of α phase is 10%, the activated carbon material 102 is activated carbon fiber cloth, and the silicon nitride material 101 is sprayed after being dispersed in a liquid to realize the silicon nitride material. 101 is fixed on the surface of the activated carbon material 102 .
在第一实施例中，抗菌材料100作为口罩或外部防护衣，当接触到细菌、病毒或异味分子时，首先所述细菌、病毒或异味分子会受到具有多孔隙特性的活性炭材料102吸附，然而同时氮化硅材料101中具有不稳定之悬键(dangling bond)、不饱和键及/或其他未配对键合(free bonding)等活性官能基会强力与空气中之水分作用，并且释放出氨(NH 3)，化学式如下： In the first embodiment, the antibacterial material 100 is used as a mask or outer protective clothing. When it comes into contact with bacteria, viruses or odor molecules, the bacteria, viruses or odor molecules will be adsorbed by the activated carbon material 102 with porous characteristics. However, At the same time, the silicon nitride material 101 has active functional groups such as unstable dangling bonds, unsaturated bonds and/or other unpaired bonds, which can strongly interact with moisture in the air and release ammonia. (NH 3 ), the chemical formula is as follows:
Si 3N 4+6H 2O→3SiO 2+4NH 3 Si 3 N 4 +6H 2 O→3SiO 2 +4NH 3
SiO 2+2H 2O→Si(OH) 4 SiO 2 +2H 2 O→Si(OH) 4
于氨(NH 3)存在的环境下，会诱发细菌、病毒内RNA发生碱性转酯化交换作用，进而使吸附于活性炭材料102的细菌、病毒失去活性无法进一步增生，同时水分会优先与氮化硅作用，凝结在活性炭材料102表面的机率降低，提升活性炭对于异味吸附的能力，在吸附与抗菌同时作用下，本发明的抗菌材料作为口罩或防护衣，能拥有更好的抗病毒与抗菌性能。 In the presence of ammonia (NH 3 ), the RNA in bacteria and viruses will be induced to undergo alkaline transesterification exchange, so that the bacteria and viruses adsorbed on the activated carbon material 102 will become inactive and cannot proliferate further. At the same time, moisture will preferentially interact with nitrogen. Silica acts, the probability of condensation on the surface of the activated carbon material 102 is reduced, and the ability of activated carbon to absorb odors is improved. Under the simultaneous action of adsorption and antibacterial, the antibacterial material of the present invention can be used as a mask or protective clothing, which can have better antiviral and antibacterial properties performance.
实施例2Example 2
本发明的第二实施例如图2所示，其中揭示本发明之抗菌材料200，其中氮化硅材料与活性炭材料通过湿式球磨进行混合，形成混合颗粒201，混合时氮化硅材料之重量占氮化硅与活性炭材料混合总重的5％，且氮化硅含有α相及β相之混合相，而α相比例为30％，混合颗粒201通过液体涂布方式将颗粒固定于编织后聚酯纤维布202，由于聚酯纤维经常被用作日常生活中之衣裤帽子等材料，因此通过此结合更提升原有织物的功能性，使得成品能够具有抗病毒及抗菌之功效。The second embodiment of the present invention is shown in FIG. 2, which discloses the antibacterial material 200 of the present invention, wherein the silicon nitride material and the activated carbon material are mixed by wet ball milling to form mixed particles 201, and the weight of the silicon nitride material during mixing accounts for nitrogen The total weight of the mixture of silicon carbide and activated carbon material is 5%, and the silicon nitride contains a mixed phase of α phase and β phase, and the proportion of α phase is 30%. The mixed particles 201 are fixed to the polyester after weaving by liquid coating As for the fiber cloth 202, polyester fiber is often used as materials such as clothes, pants, hats, etc. in daily life. Therefore, through this combination, the functionality of the original fabric is further improved, so that the finished product can have antiviral and antibacterial effects.
实施例3Example 3
本发明的另一实施例如图3所示，其中揭示本发明之抗菌材料剖面图300，其中活性炭材料301为高效率粉状活性炭，已于聚酯纤维不织布302制造过程中通过高温气氛稳固黏着于纤维表面，再通过液体涂布方式将氮化硅材料303固定于聚酯纤维无纺布302之纤维表面，氮化硅材料303重量占氮化硅与活性炭材料总重的20％，且氮化硅含有α相及β相之混合相，而α相比例为35％，通过以上比例加以组合，可使得聚酯纤维无纺布302能具有抗病及抗菌之功效，作为滤网产品可提升抗病毒及抗菌能力。Another embodiment of the present invention is shown in FIG. 3, which discloses a cross-sectional view 300 of the antibacterial material of the present invention, wherein the activated carbon material 301 is high-efficiency powdered activated carbon, which has been firmly adhered to the polyester fiber nonwoven fabric 302 by a high temperature atmosphere during the manufacturing process On the fiber surface, the silicon nitride material 303 is fixed on the fiber surface of the polyester fiber non-woven fabric 302 by liquid coating. The weight of the silicon nitride material 303 accounts for 20% of the total weight of the silicon nitride and the activated carbon material, and the nitrided Silicon contains a mixture of α-phase and β-phase, and the proportion of α-phase is 35%. By combining the above proportions, the polyester fiber non-woven fabric 302 can have anti-disease and antibacterial effects, and as a filter product, it can improve the anti-bacterial properties. Virus and antibacterial ability.
效果测试例Effect test case
采用实施例1制备的本发明抗菌材料进行抗菌效果测试。The antibacterial effect test was carried out using the antibacterial material of the present invention prepared in Example 1.
测试1.Test 1.
测试菌株为肺炎克雷伯氏菌(Klebsiella pneumoniae；保藏编 号ATCC 4352)The test strain was Klebsiella pneumoniae (Klebsiella pneumoniae; deposit number ATCC 4352)
测试前，初始的菌落形成单位为2.2×10 5(CFU/样本)；经过24小时，在实施例1制备的抗菌材料上的菌落形成单位为5.1×10 7(CFU/样本)；在对照組上的菌落形成单位为2.5×10 8(CFU/样本)。由上述结果可知，相对于对照组，本发明实施例1制备的抗菌材料可以减少79.5％的菌落形成。 Before the test, the initial colony forming unit was 2.2×10 5 (CFU/sample); after 24 hours, the colony forming unit on the antibacterial material prepared in Example 1 was 5.1×10 7 (CFU/sample); in the control group The colony forming unit on the 2.5 x 108 (CFU/sample). It can be seen from the above results that, compared with the control group, the antibacterial material prepared in Example 1 of the present invention can reduce the colony formation by 79.5%.
测试2.Test 2.
测试菌株为金黄色葡萄球菌(Staphylococcus aureus(MRSA)；保藏编号为ATCC 33591)The test strain is Staphylococcus aureus (MRSA); the deposit number is ATCC 33591)
测试前，初始的菌落形成单位为1.3×10 5(CFU/样本)；经过24小时，在实施例1制备的抗菌材料上的菌落形成单位为8.3×10 4(CFU/样本)；在对照組上的菌落形成单位为1.6×10 8(CFU/样本)。由上述结果可知，相对于对照组，本发明实施例1制备的抗菌材料可以减少94.8％的菌落形成。 Before the test, the initial colony forming unit was 1.3×10 5 (CFU/sample); after 24 hours, the colony forming unit on the antibacterial material prepared in Example 1 was 8.3×10 4 (CFU/sample); in the control group The colony forming unit on 1.6 x 108 (CFU/sample). It can be seen from the above results that, compared with the control group, the antibacterial material prepared in Example 1 of the present invention can reduce the colony formation by 94.8%.
上述测试例的结果表明，本发明的抗菌材料可以极其显著地减少菌落形成，具有有利的抗菌抑菌效果，这样的结果是出乎意料的。The results of the above test examples show that the antibacterial material of the present invention can significantly reduce the colony formation and has a favorable antibacterial and bacteriostatic effect, which is unexpected.
上列详细说明系针对本发明示例性实施例的具体说明，但所述实施例并非用以限制本发明之专利范围，凡未脱离本发明精神所做出的等效实施方案或变化形式，均应包含于本申请之专利范围中。The above detailed descriptions are for the specific descriptions of the exemplary embodiments of the present invention, but the embodiments are not intended to limit the patent scope of the present invention. Any equivalent embodiments or modifications made without departing from the spirit of the present invention are should be included in the patent scope of this application.

Claims (9)

  1. 一种抗菌材料，所述材料包含活性炭与氮化硅。An antibacterial material comprising activated carbon and silicon nitride.
  2. 根据权利要求1所述的抗菌材料，其中所述氮化硅的重量占氮化硅与活性炭两种材料总重量的1～99wt％。The antibacterial material according to claim 1, wherein the weight of the silicon nitride accounts for 1-99 wt% of the total weight of the two materials of silicon nitride and activated carbon.
  3. 根据权利要求1所述的抗菌材料，其中所述氮化硅含有α相及β相之混合相，而α相之比例为1～99％。The antibacterial material according to claim 1, wherein the silicon nitride contains a mixed phase of α-phase and β-phase, and the ratio of α-phase is 1-99%.
  4. 根据权利要求1所述的抗菌材料，其中所述氮化硅是氮化硅粉末或预成型氮化硅的形式，所述预成型的方式包括黏着、涂布、粉末烧结、编织氮化硅纤维或其他方式附着于天然纤维或人造纤维而实现。The antimicrobial material of claim 1, wherein the silicon nitride is in the form of silicon nitride powder or preformed silicon nitride by means of adhering, coating, powder sintering, braiding silicon nitride fibers Or other ways to attach to natural fibers or man-made fibers.
  5. 根据权利要求4所述的抗菌材料，其中所述天然纤维是植物纤维、木纤维、动物纤维或矿物纤维，如棉、麻、亚麻、磨木纸浆、蚕丝、石绵等；所述人造纤维是再生纤维、半合成纤维或合成纤维，如嫘萦、醋酸纤维、耐纶、奥纶、达克纶等。The antibacterial material according to claim 4, wherein the natural fibers are plant fibers, wood fibers, animal fibers or mineral fibers, such as cotton, hemp, flax, ground wood pulp, silk, asbestos, etc.; the man-made fibers are Regenerated fibers, semi-synthetic fibers or synthetic fibers, such as rayon, acetate, nylon, Orlon, Dacron, etc.
  6. 根据权利要求1所述的抗菌材料，其中所述活性炭材料是活性炭粉末、活性炭纤维或预成型活性炭的形式，其中所述预成型活性炭可通过加热、涂布或其他方式附着于纤维而实现。The antimicrobial material of claim 1, wherein the activated carbon material is in the form of activated carbon powder, activated carbon fibers, or preformed activated carbon, wherein the preformed activated carbon can be achieved by heating, coating, or otherwise attaching to fibers.
  7. 根据权利要求6所述的抗菌材料，其中所述纤维为天然纤维或人造纤维，所述天然纤维是植物纤维、木纤维、动物纤维或矿物纤维，如棉、麻、亚麻、磨木纸浆、蚕丝、石绵等；所述人造纤维是再生纤维、半合成纤维或合成纤维，如嫘萦、醋酸纤维、耐纶、奥纶、达克纶等。The antibacterial material according to claim 6, wherein the fibers are natural fibers or man-made fibers, and the natural fibers are plant fibers, wood fibers, animal fibers or mineral fibers, such as cotton, hemp, flax, ground wood pulp, silk , asbestos, etc.; the man-made fibers are regenerated fibers, semi-synthetic fibers or synthetic fibers, such as rayon, acetate fiber, nylon, Alon, Daclon, etc.
  8. 根据权利要求1所述的抗菌材料，其中所述活性炭与氮化硅以任意合适的方式结合。The antimicrobial material of claim 1, wherein the activated carbon is combined with silicon nitride in any suitable manner.
  9. 根据权利要求项8所述的抗菌材料，其中所述结合包括两者以化学方式相结合，也包括两者以物理方式相接触、混合，也包括兼有化学方式和物理方式的结合和混合。The antibacterial material according to claim 8, wherein the combination includes chemical combination of the two, physical contact and mixing of the two, and combination and mixing of both chemical and physical methods.
PCT/CN2021/139014 2020-12-18 2021-12-17 Antibacterial material WO2022127888A1 (en)

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