CN111592772A - Old handrail made of antibacterial composite material - Google Patents

Old handrail made of antibacterial composite material Download PDF

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Publication number
CN111592772A
CN111592772A CN202010509776.1A CN202010509776A CN111592772A CN 111592772 A CN111592772 A CN 111592772A CN 202010509776 A CN202010509776 A CN 202010509776A CN 111592772 A CN111592772 A CN 111592772A
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composite material
antibacterial composite
nano
parts
handrail
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孙浙勇
俞慧勇
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Karasawa Traffic Equipment Taizhou Co ltd
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Karasawa Traffic Equipment Taizhou Co ltd
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Priority to CN202010509776.1A priority Critical patent/CN111592772A/en
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    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • 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
    • A01N59/16—Heavy metals; Compounds thereof
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A45B9/02—Handles or heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D105/00—Coating compositions based on polysaccharides or on their derivatives, not provided for in groups C09D101/00 or C09D103/00
    • C09D105/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16—Antifouling paints; Underwater paints
    • C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
    • C09D5/1612—Non-macromolecular compounds
    • C09D5/1618—Non-macromolecular compounds inorganic
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    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/08—Materials not undergoing a change of physical state when used
    • C09K5/14—Solid materials, e.g. powdery or granular
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
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    • C08K3/20—Oxides; Hydroxides
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Abstract

The invention relates to the technical field of an old-helping handrail, in particular to an old-helping handrail prepared from an antibacterial composite material, which is prepared from the following raw materials in parts by weight: the handrail is prepared from an antibacterial composite material, wherein the inside of the handrail is filled with the nano zinc oxide and nano silver powder with antibacterial effect, and the nano silver powder is adhered to the surface of the handrail through chitosan, so that the handrail body has excellent antibacterial effect, bacteria can be prevented from breeding on the handrail, and the health of old people is protected.

Description

Old handrail made of antibacterial composite material
Technical Field
The invention relates to the technical field of an old-helping handrail, in particular to an old-helping handrail prepared from an antibacterial composite material.
Background
Along with various old-people assisting devices and facilities continuously appearing in the visual field of people, the old-people assisting device greatly assists the old in the late life, and particularly, products such as walking sticks and wheelchairs are good helpers for assisting the old in walking.
The handrail is a basic part in the walking stick and the wheelchair, and in the process of using the walking stick or the wheelchair by the old, the hand of the old needs to be continuously contacted with the handrail, the existing handrail generally has no antibacterial function, bacteria are easy to breed on the handrail, and certain hidden troubles exist for the health of the old.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an old-helping handrail prepared from an antibacterial composite material.
In order to achieve the purpose, the invention adopts the following technical scheme:
an antibacterial composite material is prepared from the following raw materials in parts by weight: 60-80 parts of plastic particles, 3-6 parts of silicon carbide, 5-10 parts of nano zinc oxide, 3-6 parts of graphite fibers, 2-3 parts of nano silver powder, 3-5 parts of nano titanium dioxide, 5-10 parts of a binder and 3-5 parts of chitosan, wherein the antibacterial composite material is prepared by the following steps:
s1, evenly dividing the nano silver powder into two parts which are recorded as A group of nano silver powder and B group of nano silver powder;
s2, melting and mixing the group A of nano-silver powder, the plastic particles, the silicon carbide, the nano-zinc oxide and the graphite fibers, adding the mixture into a stirrer, adding a binder under high-speed stirring, fully mixing, performing injection molding through an injection mold, and cooling and shaping to obtain an antibacterial composite material blank;
s3, cutting burrs and gates on the surface of the antibacterial composite material blank, and polishing;
s4, adding the B group of nano-silver powder, nano-titanium dioxide and chitosan into deionized water, ultrasonically dispersing for 10-30min, then immersing the polished antibacterial composite material blank into an aqueous solution for 6-9min, and drying after the immersion is finished to obtain the antibacterial composite material.
Preferably, the binder is an amino resin binder.
Preferably, the particle size of the nano silver powder is 20-40nm, the particle size of the nano zinc oxide is 60-80nm, and the particle size of the nano titanium dioxide is 15-30 nm.
Preferably, after drying, polishing treatment is carried out to improve the smoothness of the surface.
Preferably, in S4, the mass ratio of the deionized water to the nano titanium dioxide is (10-20): 1.
preferably, an utilize handrail of helping old people of antibiotic type combined material preparation, include by the handrail body that antibiotic type combined material made, seted up the standing groove along its length direction on the lateral wall of handrail body, fixed block and fixed pipe have been placed in the standing groove, the tip of fixed block and the inner wall of fixed pipe are connected through the screw thread, install the electrothermal tube on the fixed block, and the electrothermal tube is located the inside of fixed pipe, and is provided with the screw thread on the outer wall of fixed block, and the fixed block is connected with the inner wall of standing groove through the screw thread, the annular groove of evenly distributed has still been seted up on the inner wall of standing groove, set up the logical groove that is linked together with the annular groove on the handrail body.
Preferably, one end of the fixing pipe, which is far away from the fixing block, is provided with a seal head.
Preferably, the movable ring is sleeved on the outer side of the electric heating tube, the fixed rod is fixedly mounted on the inner wall of the fixed tube, the outer wall of the movable ring is provided with an annular sliding groove, and the end part of the fixed rod is located inside the sliding groove.
Preferably, the fixed rod, the movable ring and the fixed pipe are made of one of copper and aluminum.
Preferably, the lower end of the handrail body is further provided with a mounting groove, the mounting groove is fixedly connected with one end of the connecting rod, and the other end of the connecting rod is fixedly connected with a rubber pad.
The invention has the beneficial effects that:
1. according to the handrail prepared from the antibacterial composite material, the nano zinc oxide powder and the nano silver powder with antibacterial effects are filled in the handrail, and the nano silver powder is additionally adhered to the surface of the handrail through the chitosan, so that the handrail body has an excellent antibacterial effect, bacteria can be prevented from breeding on the handrail, and the health of old people is protected.
2. The electric heating tube is arranged inside the handrail, and the antibacterial composite material is filled with silicon carbide, nano zinc oxide and graphite fibers, so that the handrail body has good heat-conducting property, and when the weather is cold, the handrail body can be heated through the electric heating tube, and the comfortable feeling of the handrail is improved.
3. The nano titanium dioxide is adhered to the surface of the handrail through the chitosan, has good photocatalytic performance, can decompose some dirt on the handrail body, is convenient for self-cleaning of the handrail body, and is not beneficial to breeding of bacteria.
Drawings
FIG. 1 is a schematic structural view of an assistant handrail made of an antibacterial composite material according to the present invention;
FIG. 2 is a schematic structural view of an assistant handrail made of an antibacterial composite material according to the present invention;
FIG. 3 is a schematic structural view of an assistant handrail made of an antibacterial composite material according to the present invention;
fig. 4 is a schematic structural view of an assistant handrail made of an antibacterial composite material according to the present invention.
In the figure: the handrail comprises a handrail body 1, a connecting rod 2, a rubber pad 3, an installation groove 11, a placing groove 12, a fixed block 13, a fixed pipe 14, an electric heating pipe 15, a fixed rod 16, a movable ring 17, an annular groove 18 and a through groove 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
In example 1, referring to fig. 1 to 4, an antibacterial composite material is prepared from the following raw materials in parts by weight: 60 parts of plastic particles, 3 parts of silicon carbide, 5 parts of nano zinc oxide, 3 parts of graphite fiber, 2 parts of nano silver powder, 3 parts of nano titanium dioxide, 5 parts of binder and 3 parts of chitosan, wherein the antibacterial composite material is prepared by the following steps:
s1, evenly dividing the nano silver powder into two parts which are recorded as A group of nano silver powder and B group of nano silver powder;
s2, melting and mixing the group A of nano-silver powder, the plastic particles, the silicon carbide, the nano-zinc oxide and the graphite fibers, adding the mixture into a stirrer, adding a binder under high-speed stirring, fully mixing, performing injection molding through an injection mold, and cooling and shaping to obtain an antibacterial composite material blank;
s3, cutting burrs and gates on the surface of the antibacterial composite material blank, and polishing;
s4, adding the B group of nano-silver powder, nano-titanium dioxide and chitosan into deionized water, ultrasonically dispersing for 10min, immersing the polished antibacterial composite material blank in an aqueous solution for 6min, and drying after immersion to obtain the antibacterial composite material.
Further, the binder is an amino resin binder.
Furthermore, the particle size of the nano silver powder is 20-40nm, the particle size of the nano zinc oxide is 60-80nm, and the particle size of the nano titanium dioxide is 15-30 nm.
Further, after drying, polishing treatment is carried out, and the smoothness of the surface is improved.
Further, in S4, the mass ratio of the deionized water to the nano titanium dioxide is 10: 1.
an assistant handrail prepared by using an antibacterial composite material comprises a handrail body 1 prepared by the antibacterial composite material, wherein a placing groove 12 is formed in the side wall of the handrail body 1 along the length direction of the handrail body, a fixing block 13 and a fixing pipe 14 are placed in the placing groove 12, the end part of the fixing block 13 is connected with the inner wall of the fixing pipe 14 through threads, an electric heating pipe 15 is installed on the fixing block 13, the electric heating pipe 15 is positioned in the fixing pipe 14, the outer wall of the fixing block 13 is provided with threads, the fixing block 13 is connected with the inner wall of the placing groove 12 through the threads, the inner wall of the placing groove 12 is further provided with uniformly distributed annular grooves 18, the handrail body 1 is provided with through grooves 19 communicated with the annular grooves 18, the annular grooves 18 are matched with the through grooves 19, the air permeability of the handle body 1 can be improved, and the end surface of the fixing block 13 is provided with, be convenient for take out fixed block 13 with the screwdriver, the internally mounted of fixed block 13 has the battery, and the terminal surface of fixed block 13 still is provided with the interface that charges.
Further, one end of the fixing tube 14, which is far away from the fixing block 13, is provided with a sealing head.
Furthermore, the outer side of the electric heating tube 15 is sleeved with a movable ring 17, the inner wall of the fixed tube 14 is fixedly provided with a fixed rod 16, the outer wall of the movable ring 17 is provided with a circular chute, the end part of the fixed rod 16 is positioned in the chute, the movable ring 17 and the fixed rod 16 adopt a sliding connection mode, this has the advantages that the electric heating tube 15 will rotate relative to the movable ring 17 when the fixed tube 14 is installed on the fixed block 13, if the movable ring 17 can not rotate, and the resistance between the electric heating tube 15 and the movable ring 17 is large, the electric heating tube 15 will be easily damaged, otherwise, in this embodiment, the outer wall of the movable ring 17 is provided with a circular sliding groove, the movable ring 17 can rotate relative to the fixed rod 16, namely, when the resistance between the electric heating tube 15 and the movable ring 17 is large, the electric heating tube 15 can drive the movable ring 17 to rotate, so as to ensure that the electric heating tube 15 is not affected.
Further, the material of the fixed rod 16, the movable ring 17 and the fixed tube 14 is one of copper or aluminum.
Further, the lower end of the handrail body 1 is further provided with a mounting groove 11, the mounting groove 11 is fixedly connected with one end of the connecting rod 2, the other end of the connecting rod 2 is fixedly connected with the rubber pad 3, and the connecting rod 2, the rubber pad 3 and the handrail body 1 are combined, so that the whole device becomes a walking stick and is convenient for old people to use.
In example 2, compared with example 1, there is only a difference in the preparation method of the antibacterial composite material, and the antibacterial composite material is prepared from the following raw materials in parts by weight: 80 parts of plastic particles, 6 parts of silicon carbide, 10 parts of nano zinc oxide, 6 parts of graphite fiber, 3 parts of nano silver powder, 5 parts of nano titanium dioxide, 10 parts of binder and 5 parts of chitosan, wherein the antibacterial composite material is prepared by the following steps:
s1, evenly dividing the nano silver powder into two parts which are recorded as A group of nano silver powder and B group of nano silver powder;
s2, melting and mixing the group A of nano-silver powder, the plastic particles, the silicon carbide, the nano-zinc oxide and the graphite fibers, adding the mixture into a stirrer, adding a binder under high-speed stirring, fully mixing, performing injection molding through an injection mold, and cooling and shaping to obtain an antibacterial composite material blank;
s3, cutting burrs and gates on the surface of the antibacterial composite material blank, and polishing;
s4, adding the B group of nano-silver powder, nano-titanium dioxide and chitosan into deionized water, ultrasonically dispersing for 30min, immersing the polished antibacterial composite material blank in an aqueous solution for 9min, and drying after immersion is finished to obtain the antibacterial composite material.
Further, the binder is an amino resin binder.
Furthermore, the particle size of the nano silver powder is 20-40nm, the particle size of the nano zinc oxide is 60-80nm, and the particle size of the nano titanium dioxide is 15-30 nm.
Further, after drying, polishing treatment is carried out, and the smoothness of the surface is improved.
Further, in S4, the mass ratio of the deionized water to the nano titanium dioxide is 20: 1.
in example 3, compared with example 1, there is only a difference in the preparation method of the antibacterial composite material, and the antibacterial composite material is prepared from the following raw materials in parts by weight: 70 parts of plastic particles, 5 parts of silicon carbide, 7 parts of nano zinc oxide, 4 parts of graphite fiber, 3 parts of nano silver powder, 4 parts of nano titanium dioxide, 6 parts of binder and 4 parts of chitosan, wherein the antibacterial composite material is prepared by the following steps:
s1, evenly dividing the nano silver powder into two parts which are recorded as A group of nano silver powder and B group of nano silver powder;
s2, melting and mixing the group A of nano-silver powder, the plastic particles, the silicon carbide, the nano-zinc oxide and the graphite fibers, adding the mixture into a stirrer, adding a binder under high-speed stirring, fully mixing, performing injection molding through an injection mold, and cooling and shaping to obtain an antibacterial composite material blank;
s3, cutting burrs and gates on the surface of the antibacterial composite material blank, and polishing;
s4, adding the B group of nano-silver powder, nano-titanium dioxide and chitosan into deionized water, ultrasonically dispersing for 20min, immersing the polished antibacterial composite material blank in an aqueous solution for 8min, and drying after immersion is finished to obtain the antibacterial composite material.
Further, the binder is an amino resin binder.
Furthermore, the particle size of the nano silver powder is 20-40nm, the particle size of the nano zinc oxide is 60-80nm, and the particle size of the nano titanium dioxide is 15-30 nm.
Further, after drying, polishing treatment is carried out, and the smoothness of the surface is improved.
Further, in S4, the mass ratio of the deionized water to the nano titanium dioxide is 15: 1.
in embodiment 4, a difference from embodiment 1 is that the installation groove 11 is not provided at the lower end of the armrest body 1, and the armrest body 1 functions as an armrest (not shown) for elderly people equipment such as wheelchairs, toilet seats, reclining chairs, and the like.
In the embodiment 1-4, the handrail prepared by the method using the antibacterial composite material is filled with the nano zinc oxide and the nano silver powder with the antibacterial effect, and the nano silver powder is additionally adhered to the surface of the handrail through the chitosan, so that the handrail body 1 has the excellent antibacterial effect, bacteria can be prevented from breeding on the handrail, and the health of the old is protected.
This handrail is inside to be set up electrothermal tube 15, and this antibiotic type combined material is inside to be filled has carborundum, nanometer zinc oxide and graphite fiber, make handrail body 1 have good heat conductivility, when weather is cold, can heat handrail body 1 through electrothermal tube 15, improve the comfort of handrail, device inside still is provided with activity ring 17 and solid fixed ring 16, can effectually transmit the heat transfer to fixed pipe 14 with electrothermal tube 15 production through activity ring 17 and solid fixed ring 16, finally transmit to handrail body 1, the transmission of the energy of being convenient for.
The nano titanium dioxide is adhered to the surface of the handrail through the chitosan, has good photocatalytic performance, can decompose some dirt on the handrail body, is convenient for self-cleaning of the handrail body, and is not beneficial to breeding of bacteria.
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 (10)

1. The antibacterial composite material is characterized by being prepared from the following raw materials in parts by weight: 60-80 parts of plastic particles, 3-6 parts of silicon carbide, 5-10 parts of nano zinc oxide, 3-6 parts of graphite fibers, 2-3 parts of nano silver powder, 3-5 parts of nano titanium dioxide, 5-10 parts of a binder and 3-5 parts of chitosan, wherein the antibacterial composite material is prepared by the following steps:
s1, evenly dividing the nano silver powder into two parts which are recorded as A group of nano silver powder and B group of nano silver powder;
s2, melting and mixing the group A of nano-silver powder, the plastic particles, the silicon carbide, the nano-zinc oxide and the graphite fibers, adding the mixture into a stirrer, adding a binder under high-speed stirring, fully mixing, performing injection molding through an injection mold, and cooling and shaping to obtain an antibacterial composite material blank;
s3, cutting burrs and gates on the surface of the antibacterial composite material blank, and polishing;
s4, adding the B group of nano-silver powder, nano-titanium dioxide and chitosan into deionized water, ultrasonically dispersing for 10-30min, then immersing the polished antibacterial composite material blank into an aqueous solution for 6-9min, and drying after the immersion is finished to obtain the antibacterial composite material.
2. The antibacterial composite material as claimed in claim 1, wherein said binder is amino resin binder.
3. The antibacterial composite material as claimed in claim 1, wherein the nano silver powder has a particle size of 20-40nm, the nano zinc oxide has a particle size of 60-80nm, and the nano titanium dioxide has a particle size of 15-30 nm.
4. The antibacterial composite material of claim 1, wherein in step S4, after drying, polishing is performed to improve the smoothness of the surface.
5. The antibacterial composite material of claim 1, wherein in S4, the mass ratio of the deionized water to the nano titanium dioxide is (10-20): 1.
6. an assistant handrail made of the antibacterial composite material according to any one of claims 1 to 5, it is characterized by comprising an armrest body (1) made of the antibacterial composite material, a placing groove (12) is arranged on the side wall of the handrail body (1) along the length direction, a fixed block (13) and a fixed pipe (14) are arranged in the placing groove (12), the end part of the fixed block (13) is connected with the inner wall of the fixed pipe (14) through threads, the fixed block (13) is provided with an electric heating pipe (15), the electric heating pipe (15) is positioned in the fixed pipe (14), and the outer wall of the fixed block (13) is provided with threads, the fixed block (13) is connected with the inner wall of the placing groove (12) through the threads, the inner wall of the placing groove (12) is also provided with evenly distributed annular grooves (18), the handrail body (1) is provided with a through groove (19) communicated with the annular groove (18).
7. The handrail made of antibacterial composite material according to claim 6, characterized in that the end of the fixed tube (14) far from the fixed block (13) is provided with a sealing head.
8. The handrail made of antibacterial composite material according to claim 7, wherein the electric heating tube (15) is sleeved with a movable ring (17), the inner wall of the fixed tube (14) is fixedly provided with a fixed rod (16), the outer wall of the movable ring (17) is provided with a circular chute, and the end of the fixed rod (16) is located inside the chute.
9. The handrail made of antibacterial composite material according to claim 8, characterized in that the material of the fixed rod (16), the movable ring (17) and the fixed tube (14) is one of copper or aluminum.
10. The handrail made of antibacterial composite material as claimed in claim 6, wherein the handrail body (1) is further provided with an installation groove (11) at the lower end thereof, the installation groove (11) is fixedly connected with one end of the connecting rod (2), and the other end of the connecting rod (2) is fixedly connected with the rubber pad (3).
CN202010509776.1A 2020-06-08 2020-06-08 Old handrail made of antibacterial composite material Pending CN111592772A (en)

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Application publication date: 20200828