CN109468792B

CN109468792B - Antiwind laundry roller with bactericidal action

Info

Publication number: CN109468792B
Application number: CN201910017959.9A
Authority: CN
Inventors: 牟子琪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2020-12-01
Anticipated expiration: 2039-01-09
Also published as: CN109468792A

Abstract

The invention discloses an anti-winding washing roller with a sterilization function; comprises a left hemisphere, a right hemisphere and a concave-convex anti-winding tooth sheet; the left hemisphere and the right hemisphere are connected to form a hollow ellipsoid; the surface of the hollow ellipsoid is provided with a plurality of micropores for water convection; the outer surface of the hollow ellipsoid is provided with a plurality of concave-convex anti-winding tooth sheets at intervals along the long axis direction of the ellipsoid, and the concave-convex anti-winding tooth sheets consist of a plurality of tooth sheets which are staggered in height; the hollow ellipsoid and the concave-convex anti-winding tooth sheet comprise the following raw materials in parts by mass: 75-80 parts of silicon rubber, 3-5 parts of inorganic non-metallic nano material, 3-5 parts of vulcanizing agent, 2-4 parts of catalyst, 4-6 parts of dispersing agent, 3-5 parts of surface active agent and 2-5 parts of surface treating agent; the anti-winding washing roller with the sterilization function has the characteristics of lasting sterilization effect without replacing parts, good anti-winding effect, greenness and environmental protection.

Description

Antiwind laundry roller with bactericidal action

Technical Field

The invention relates to an anti-winding washing roller, in particular to an anti-winding washing roller with a sterilization function.

Background

Fully automatic washing machines (including pulsator and drum) are the first choice for many home users because of their high cleaning ratio, fast washing time and convenient use. However, the current washing machine of this type has a big defect: in the process of cleaning clothes, various clothes are easy to be twisted together and are difficult to disassemble after cleaning, so that the actual washing effect is influenced, and even some clothes are damaged due to twisting; in addition, with the continuous improvement of living standard, people do not limit the washing requirements of the washing machine to the traditional dirt removal, and pay more and more attention to whether the washing machine has the function of cleaning a few of micro objects such as bacteria and the like attached to clothes.

In response to these demands, some laundry balls with anti-twisting effect appear on the market, and the laundry balls are various in variety and different in shape. The convex or concave parts are formed on the surface of the ball body, so that the shape of the washing ball has uneven height difference, the washing ball is placed in a full-automatic washing machine during washing, the uneven parts of the shape of the washing ball are rubbed with clothes by stirring of the washing machine, and the wrinkles of the clothes are smoothed to achieve the purpose of preventing winding, and the washing ball has a single function. At present, some clothes washing balls with sterilization effects exist in the market, but most of sterilization components of the clothes washing balls are bactericides made of chemical substances, the bactericides are dissolved into water in a form of releasing solid slow-release particles or tablets to generate the sterilization effects, the action time is short, the sterilization effects are determined by the dosage of the sterilization components dissolved into the water, and the chemical bactericides have certain irritation, corrosiveness, even toxicity and the like to clothes and human skin, so that people generally worry about the clothes washing balls during use. The washing ball with the sterilizing effect is characterized in that external substances such as a bactericide and the like are placed in the inner cavity of the washing ball, and the bactericide is required to be added continuously to achieve the sterilizing effect. In summary, a laundry auxiliary device which can sterilize and inhibit bacteria by using a physical method and has an excellent anti-winding effect is absent in the market at present to meet the laundry requirements of the full-automatic washing machine.

Chinese utility model patent CN202440668U discloses an environmental protection laundry ball that disinfects, it includes the fretwork spheroid of compriseing two hemispheres, and two hemispheres make up the rigid coupling with any mode, and the shape of laundry ball is circular or oval or oblate, be equipped with a plurality of water supply convection's aperture on the hemisphere face, the aperture can be circular or square or irregularly shaped, and inside is wrapped up graininess nanometer silver-copper-zinc alloy and tuo malin granule by the intranet. When the nano silver-copper-zinc alloy particles contact with water, electrochemical reaction and the like can be generated, the physical sterilization effect is obvious, the antibacterial spectrum is wide, the cleaning degree can be improved, the using amount of washing powder and phosphate can be reduced, and heavy metal ions such as lead and mercury in water and residual chlorine can be removed. However, the sterilizing substance of the technology consists of nano silver-copper-zinc alloy particles, and the generated metal ions such as silver, copper and the like are harmful to human bodies, so that the biological safety is questioned; and has the defects of poor dispersibility, poor stability and durability and the like; in addition, the sterilizing substance is wrapped by the inner net and is arranged in the inner chamber of the washing ball, so that the sterilizing substance cannot be in direct contact with clothes, only generates electrochemical reaction with water and can be adsorbed to nano silver particles of bacteria to sterilize, only can remove the bacteria in water near the inner net, and has weaker sterilizing capability and does not have the function of preventing clothes from winding at the same time; the bactericidal substance is composed of nano silver-copper-zinc alloy particles, and the cost is higher.

The Chinese patent application CN107142682A discloses a healthy and environment-friendly washing ball with good anti-winding effect, which comprises a container, a handle, a locking ring and at least one ceramic washing ball, wherein the ceramic washing ball is positioned in the container, the container is similar to a ball, the container comprises an upper shell and a lower shell, at least one through hole is formed in the upper shell and/or the lower shell, a round hole is formed in the bottom of the lower shell, the handle comprises a connecting piece and a handle body, the connecting piece is connected with the handle body, the connecting piece penetrates through the round hole and is tightly sleeved with the locking ring from the inner part of the lower shell, and at least one through hole is formed in the handle body. The washing ball can prevent clothes from being wound, can be embedded with the ceramic washing ball, and has a good cleaning function on the clothes. Although the washing ball has the anti-winding and sterilization effects, after the washing ball is used for a period of time, the ceramic washing ball in the washing ball loses the effect, the ceramic washing ball in the washing ball needs to be replaced, the washing ball does not have long-term effectiveness, can not be reused, and is inconvenient because of the need of replacing the ceramic washing ball regularly. In addition, because the length-diameter ratio of the handle is greatly different from that of the container, the clothes are easy to tangle at the handle part; the handle and the container are stressed differently, so that the handle part is easy to damage or even break; and the container is similar to a sphere, the fluid resistance is larger than that of an ellipsoid, and the container is not easy to rotate along with clothes along with the stirring of the washing machine during washing, so that the anti-winding effect is poor.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art and provides an anti-winding washing roller which has a lasting sterilization effect without replacing components, a good anti-winding effect, and a green and environment-friendly sterilization effect.

The anti-winding washing roller with the sterilization function is made of the silicon rubber filled with the inorganic non-metal nano material with the efficient sterilization and bacteriostasis functions, does not need to additionally put in sterilization substances, and can replace a washing ball which is sterilized by chemical synthesis substances or organic matters in the current market; compared with other physical methods, the washing roller has higher sterilization efficiency, shorter time and high safety, and the inorganic non-metal nano material in the washing roller can not be lost due to the sterilization and bacteriostasis, can be repeatedly used, and has long-term effectiveness; compared with organic sterilizing substances and metal nano materials, the washing roller has the advantages of no toxicity, no harm, no irritation, no corrosion, long action time, repeated use, environmental protection and the like to clothes and human bodies; compared with other methods for sterilizing by adopting chemical substances or organic matters, the washing roller is simple and convenient to use and has stronger sterilizing and cleaning abilities; meanwhile, the washing roller has a reasonable appearance structure, can effectively prevent clothes from winding in the washing process and can generate the effect similar to the rubbing effect of hands on the clothes, and further improves the cleaning degree of the clothes; the reasonable appearance structure can also avoid the problem that the normal operation of the washing machine is influenced because other types of washing balls are easy to break to generate fragments.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

an anti-winding washing roller with sterilization function comprises a left hemisphere, a right hemisphere and a concave-convex anti-winding tooth sheet; the left hemisphere and the right hemisphere are connected to form a hollow ellipsoid; the surface of the hollow ellipsoid is provided with a plurality of micropores for water convection; the outer surface of the hollow ellipsoid is provided with a plurality of concave-convex anti-winding tooth sheets at intervals along the long axis direction of the ellipsoid, each concave-convex anti-winding tooth sheet consists of a plurality of tooth sheets which are arranged in a staggered mode, the height of the concave-convex anti-winding tooth sheet is gradually increased from two ends to the middle of the concave-convex anti-winding tooth sheet, and the radian of the concave-convex anti-winding tooth sheet is similar to that of the surface of the hollow ellipsoid;

the hollow ellipsoid and the concave-convex anti-winding tooth piece are prepared from the following raw materials in parts by mass:

75-80 parts of silicon rubber, 3-5 parts of inorganic non-metallic nano material, 3-5 parts of vulcanizing agent, 2-4 parts of catalyst, 4-6 parts of dispersing agent, 3-5 parts of surface active agent and 2-5 parts of surface treating agent;

the silicon rubber is methyl vinyl silicon rubber;

the inorganic non-metal nano material is nano SiO₂TiO 2 nanoparticles₂And nano ZnO;

the catalyst is dibutyltin dilaurate or stannous octoate;

the surface active agent is cationic silicone oil;

the dispersant is one or more of acetone, methanol, ethanol, n-hexane, pentane and isopropanol;

during preparation, the silicon rubber, the inorganic non-metallic nano material, the dispersing agent, the surfactant and the surface treating agent are premixed, and the mixture is subjected to strong shearing dispersion by adopting a high-speed shearing nano dispersing machine to obtain a uniform silicon rubber solution containing the inorganic nano material;

placing the silicon rubber solution at the temperature of 100-120 ℃ for 15-20 h;

adding a vulcanizing agent and a catalyst into the placed silicon rubber solution at room temperature under the condition of stirring, and stirring for 0.5-1 h;

and injecting the stirred rubber material into a hot die at 45-55 ℃ for molding, and respectively preparing the hollow ellipsoid and the concave-convex anti-winding tooth sheet.

For further achieving the purpose of the invention, the concavo-convex anti-winding tooth sheet is preferably 6-8 pieces.

Preferably, a sponge ball is arranged in the cavity of the hollowed ellipsoid; the sponge ball is in an ellipsoid shape, and the size of the sponge ball is consistent with that of the hollow-out ellipsoid.

Preferably, the left hemisphere and the right hemisphere are connected through threads.

Preferably, the concave-convex anti-winding tooth piece is connected with the hollow ellipsoid at the joint part by adopting an arc shape.

Preferably, the vulcanizing agent is dicumyl peroxide (DCP), sulfur or tetraethyl orthosilicate.

Preferably, the surface treatment agent is a silane coupling agent, a titanate coupling agent or an aluminate coupling agent.

Preferably, the silane coupling agent is KH-460 or Z-4060; the titanate coupling agent is TM-200S, ZJ-311W or PN-311W; the aluminate coupling agent is DL-411.

Preferably, the pre-mixing of the silicone rubber, the inorganic non-metallic nano material, the dispersing agent, the surfactant and the surface treatment agent is to pre-mix the silicone rubber, the inorganic non-metallic nano material, the dispersing agent, the surfactant and the surface treatment agent for 1 to 2 hours by a mixer.

The preparation method of the anti-winding washing roller with the sterilization function comprises the following steps of:

1) premixing silicon rubber, inorganic non-metal nano material, dispersant, surface activator and surface treating agent, then strongly shearing and dispersing the mixture by adopting a high-speed shearing nano dispersing machine, wherein the rotating speed of the high-speed shearing nano dispersing machine is 4000-;

2) the silicon rubber solution is placed for 15-20h at the temperature of 100-120 ℃ to remove the dispersant and the surfactant with low boiling point from the solution, so that the surface of the inorganic non-metallic nano particles is fully exposed;

3) adding a vulcanizing agent and a catalyst into the uniform silicon rubber solution with the dispersant and the surfactant removed at room temperature under the condition of mechanical stirring, and stirring for 0.5-1h to keep the surfaces of the inorganic non-metallic nanoparticles fully exposed;

4) injecting the stirred rubber material into a hot die at 45-55 ℃ in an injection molding mode for molding, and respectively preparing a hollow ellipsoid and a concave-convex anti-winding tooth sheet;

a sponge ball is arranged in the cavity of the hollowed ellipsoid; and a plurality of concave-convex anti-winding tooth sheets are arranged on the outer surface of the hollowed-out ellipsoid at intervals along the long axis direction of the ellipsoid to manufacture the anti-winding washing roller with the sterilization function.

The sponge is arranged in the ellipsoid to adsorb the laundry detergent and permeate into water from the micropores; the periphery of the ellipsoid is provided with a plurality of rows of concave-convex tooth-shaped anti-winding sheets with the arrangement direction consistent with the major axis of the ellipsoid, the joint of the anti-winding sheets and the ellipsoid is in arc connection, the anti-winding sheets can increase the contact area of the washing roller and clothes, avoid breakage and generate fragments, and generate the effect similar to hand rubbing. The whole washing roller is made of silicon rubber rich in inorganic non-metal nano sterilizing materials, the uniform dispersion of nano particles and the non-agglomeration of the particles are realized by utilizing a preparation process, so that the strong sterilizing effect of the inorganic non-metal nano particles is ensured, and the sterilizing materials and the silicon rubber are continuous and integral.

The sterilization and bacteriostasis functional mechanism of the inorganic non-metal nano material is as follows:

(1) the invention adds inorganic non-metal nano material into silicon rubber to prepare the washing roller, which can form active oxygen on the surface of the washing roller, when washing, the impeller or the rotary drum of the washing machine rotates to drive clothes to contact with the washing roller, and a large amount of active oxygen free radicals formed on the surface of the washing roller can lead bacteria to be oxidized and killed under the action of oxygen atoms and oxygen free radicals by damaging bacterial cell membranes, inhibiting the synthesis of bacterial protein, interfering the synthesis of bacterial cell walls and bacterial nucleic acid and the like, thereby leading the washing roller to achieve the purposes of inhibiting the propagation of the bacteria and killing the bacteria; and the reaction between active oxygen free radicals and organic matters in bacteria has no specificity, so that the washing roller has a broad-spectrum antibacterial spectrum.

(2) The inorganic non-metal nano material such as titanium dioxide can generate hydroxyl radical-OH under photocatalysis, the hydroxyl radical-OH has the electron affinity energy of as high as 502.4kJ/mol, which is higher than the bond energy of each chemical bond in a cell organism, when bacteria touch the hydroxyl radical generated by the inorganic non-metal nano material in the washing roller, the hydroxyl radical can react with the organic matters in the bacteria, the cell wall can be firstly destroyed, the osmosis is changed, the cell membrane and the substances in the cells are destroyed, and the survival rate of the bacteria is reduced; photo-excitation of reactive oxygen species also causes the denaturing decomposition of bacterial DNA, eventually leading to bacterial cell death, thereby killing bacteria in a shorter time.

(3) According to the invention, electrons and holes on the surface of the inorganic non-metal nano material are separated and migrate to different positions on the surface of particles, so that the recombination of the electrons and the holes is inhibited, and bacteria can be better adsorbed, therefore, the washing roller has strong adsorption capacity on the bacteria, and is beneficial to removing the bacteria in clothes and water; when the antibacterial components with positive charges in the washing roller contact with the bacterial cells with negative charges, the antibacterial components are mutually adsorbed, namely, the charge transfer is effectively utilized to puncture the cell membranes of the bacteria, so that the proteins of the bacteria are denatured, cannot breathe, metabolize and reproduce until the bacteria die. And the inorganic non-metal nano material in the washing roller can not generate loss due to sterilization and bacteriostasis, and can keep the antibacterial activity of the inorganic non-metal nano material all the time, so that the washing roller has long-term effectiveness, and the sterilization function of the washing roller has long-term effectiveness.

Through the simultaneous action of the three sterilization and bacteriostasis mechanisms, the washing roller has strong sterilization and bacteriostasis effects, wide sterilization and bacteriostasis range and long-term effectiveness.

When the washing roller is used, the washing roller is placed in a washing machine barrel, a wave wheel or a rotary drum of the washing machine rotates during washing, water flows at a high speed in the washing machine, when the washing roller is contacted with water flow and clothes, the water flow and the clothes are directly contacted with the inorganic nano material, and the inorganic nano material can sterilize and inhibit the clothes through three action mechanisms of electric charge adsorption breakdown of bacterial cell membranes, destruction of survival and propagation of bacteria by active oxygen, destruction of protein synthesis in bacteria by hydroxyl free radical-OH and the like. The inorganic non-metal nano material is directly dispersed on the surface of the washing roller, so that the water flow and the contact area of the clothes and the inorganic nano material are large, not only can bacteria in water be eliminated, but also the bacteria remained on the clothes can be eliminated through the contact friction of the clothes and the washing roller, and therefore, the washing roller has strong sterilization, bacteriostasis and cleaning capability.

Compared with the prior art, the invention has the following advantages:

1) the washing roller has strong sterilization and bacteriostasis functions and long-term effectiveness: the washing roller is composed of inorganic non-metal nano materials and silicon rubber, wherein the inorganic non-metal nano materials have the functions of sterilization and bacteriostasis, and the cost is lower than that of nano silver, copper, zinc and other alloys, and the safety is high. The invention adopts the silicon rubber filled with inorganic nonmetal nano material to make the washing roller, and the nano material still keeps the nano scale effect by utilizing the specific preparation process; the preparation method specifically comprises the steps of coating the nano particles by using a dispersing agent and an activating agent to realize uniform dispersion of the nano particles and no agglomeration of the particles in a silicon rubber matrix material; chemical bond connection is generated between the inorganic non-metal nano particles and the silicon rubber under the action of the surface treating agent, so that the inorganic non-metal nano particles are prevented from agglomerating in the subsequent process; and then, the dispersing agent and other reagents wrapping the inorganic non-metal nanoparticles are removed by a standing process at high temperature, so that the surfaces of the nanoparticles are fully exposed, and the inorganic non-metal nanoparticles in the material have effective sterilization and bacteriostasis effects, have sterilization and bacteriostasis functions, can be repeatedly used, have long-term effectiveness, do not need to additionally place sterilization substances, can be directly contacted with clothes and human skin, and have stronger sterilization and bacteriostasis capabilities and wider range. The inorganic non-metal nano material has a great mismatch of bond states due to the huge specific surface area, and a plurality of active centers appear, so that the inorganic non-metal nano material has strong adsorption capacity. The inorganic non-metal nano particles have extremely strong capturing capability for oxygen atoms and oxygen radicals which promote the putrefaction and death of microorganisms, alkane molecules which generate other peculiar smells and the like, so that the inorganic non-metal nano particles have strong sterilization and bacteriostasis functions.

2) The washing roller increases the contact area with clothes, and the inorganic non-metal nano material sterilizing substance can more quickly and comprehensively remove the clothes and bacteria and microorganisms in water, has more obvious sterilizing and bacteriostasis effects and has no selectivity to the types of the bacteria, thereby having wider antibacterial spectrum.

3) The washing roller adopts the ellipsoid body similar to the rugby ball shape as the main body of the washing roller, better conforms to the water flow behavior in hydrodynamics, can better rotate along with clothes, and the concavo-convex anti-winding sheets which are staggered in height are arranged on the ellipsoid body, so that the clothes can be more effectively prevented from being wound.

4) The washing roller is provided with the concave-convex anti-winding tooth sheets, the concave-convex shapes on the tooth sheets are arranged in a staggered mode, and the combination parts of the concave-convex shapes and the ellipsoid bodies are connected in an arc shape, so that the contact area of the tooth sheets and clothes can be increased, the wrinkles of the clothes can be better straightened, the washing roller has the advantage of better anti-winding effect, has the effect similar to that of rubbing by hands, is beneficial to removing dirt on the clothes, and has stronger cleaning force; and the structure is firm, the damage is not easy, and the normal operation of the washing machine can not be influenced by the potential damage to the inner drum of the washing machine.

5) The washing roller adopts inorganic non-metal nano materials as the sterilizing substances, and compared with organic sterilizing substances and metal nano materials, the washing roller has the advantages of no toxicity, no harm, no irritation, no corrosiveness, long acting time, repeated use, environmental protection and the like to clothes and human bodies.

6) The sponge arranged in the washing roller can adsorb the laundry detergent, the squeezing effect is generated through the flowing of water, and the laundry detergent in the sponge flows out of the micropores on the inner wall and is dissolved in the water, so that the laundry detergent can further clean clothes.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of an anti-winding washing roller with sterilization and bacteriostasis effects.

FIG. 2 is a schematic diagram of the three-dimensional structure of the left and right hemispheres of the hollowed ellipsoid of the washing roller of the present invention.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a left side view of fig. 1.

The figures show that: the device comprises a left hemisphere 1, a right hemisphere 2, a sponge ball 3 and a concave-convex anti-winding tooth sheet 4.

Detailed Description

For a better understanding of the present invention, the present invention will be further described with reference to the following drawings and examples, but the present invention is not limited thereto.

An anti-winding washing roller with sterilization function comprises a left hemisphere 1, a right hemisphere 2, a sponge ball 3 and a concave-convex anti-winding tooth sheet 4; the left hemisphere 1 and the right hemisphere 2 are connected to form a hollow ellipsoid; a sponge ball 3 is arranged in the cavity of the hollowed ellipsoid; the surface of the hollow ellipsoid is provided with a plurality of micropores for water convection; the outer surface of the hollow ellipsoid is provided with a plurality of concave-convex anti-winding tooth sheets 4 at intervals along the long axis direction of the ellipsoid, the concave-convex anti-winding tooth sheets 4 are composed of a plurality of tooth sheets which are staggered in height, the height of the concave-convex anti-winding tooth sheets 4 from two ends to the middle is gradually increased, and the radian is similar to that of the surface of the hollow ellipsoid. The anti-winding washing roller with the sterilization function has the advantages that the structural design can increase the contact area with clothes, the anti-winding effect is better, the effect similar to that of hand rubbing is formed, and the washing force of the clothes is further enhanced.

Preferably, the concavo-convex anti-wind tooth sheets 4 are 6; the sponge ball 3 is in an ellipsoid shape, and the size of the sponge ball is consistent with that of the hollow ellipsoid; the left hemisphere 1 and the right hemisphere 2 are connected through screw threads. The concave-convex anti-winding tooth sheet 4 is connected with the hollow ellipsoid in an arc shape.

The shape of the ellipsoid is similar to a football shape, the ellipsoid is easier to rotate along with clothes than a cylinder along with the stirring of the washing machine during washing, and the ellipsoid is more consistent with the water flowing behavior in the fluid mechanics principle; the inner part of the ellipsoid is hollow, the inner wall of the ellipsoid is provided with micropores, and the sponge is arranged in the ellipsoid to adsorb laundry detergent and permeate into water from the micropores; six rows of concave-convex dentate anti-winding sheets with the arrangement direction consistent with the long axis of the ellipsoid are uniformly arranged at the periphery of the ellipsoid, the anti-winding sheets are provided with smooth concave-convex dentate edges, the concave-convex dentate edges have two heights, one is higher and the other is lower in a staggered arrangement shape, the contact area of clothes and a washing roller can be increased during washing, the clothes and the washing roller are driven to generate contact and friction by the rotation of a wave wheel or a rotary drum, the friction between the washing roller and the clothes is increased, the effect similar to the rubbing effect of hands is generated, the wrinkles of the clothes can be smoothed, and the purposes of preventing winding and greatly improving the washing capacity of the clothes are achieved,

the anti-winding pieces of the washing roller are designed to be in a staggered arrangement with one high piece and one low piece, when clothes are contacted with the high tooth pieces, the high tooth pieces can be impacted by the adjacent tooth pieces due to the water flow with lower height of the adjacent tooth pieces, so that the high tooth pieces can be contacted and rubbed with the clothes but cannot be further tangled with the clothes, and the clothes are effectively prevented from being wound in the washing process; the anti-winding piece is connected with the ellipsoidal body at the joint by adopting an arc shape, can increase the contact area with clothes, avoid breakage to generate fragments, generate the effect similar to hand rubbing and washing, and have stronger washing force on the clothes. The whole washing roller is made of silicon rubber rich in inorganic non-metal nano sterilizing materials, and the sterilizing materials and the silicon rubber are integrated.

Example 1

The anti-winding washing roller with the sterilization function comprises the following raw materials in parts by weight:

silicone rubber (methyl vinyl silicone rubber, MVQ, trade name: KE-571-U, shin-Etsu Silicone International trade Co., Ltd.) 75 parts

3 portions of inorganic non-metal nano material (nano silicon dioxide, H10, Jiangsu Tianxing New Material Co., Ltd., particle size: 20nm)

Vulcanizing agent (dicumyl peroxide DCP, chemical purity, national drug group chemical reagent Co., Ltd.) 5 parts

Catalyst (stannous octoate, analytical pure, Shanghai spectral vibration Biotech Co., Ltd.) 2 parts

5 parts of dispersant (acetone, analytically pure, Shanghai Debong chemical Co., Ltd.)

5 parts of surfactant (cationic silicone oil, F-557, Guangzhou fei chemical Co., Ltd.)

5 parts of surface treating agent (silane coupling agent KH-460, Suzhou Partna chemical Co., Ltd.)

During preparation, silicon rubber, nano-silica, a vulcanizing agent (dicumyl peroxide DCP), a catalyst (stannous octoate), a dispersing agent (acetone), a surface active agent (cationic silicone oil) and a surface treating agent (silane coupling agent KH-460) are weighed according to a formula. Firstly, premixing silicon rubber, nano silicon dioxide, a dispersing agent, a surfactant and a surface treating agent for 1h by a mixer (BR-HR, Jiangsu Bell mechanical Co., Ltd.); then, a high-speed shearing nano-dispersion machine (ER2000, Shanghai Eiken mechanical Co., Ltd.) is adopted to carry out strong shearing dispersion on the mixture, the rotating speed of the high-speed shearing nano-dispersion machine is 6000 r/min, the shearing dispersion time is 2h, the step can ensure that inorganic non-metal nano-particles are not agglomerated and are uniformly dispersed, the nano-scale of the inorganic non-metal nano-particles is kept, and chemical bond connection is generated between the inorganic non-metal nano-particles and the silicon rubber under the action of a surface treating agent, so that a uniform silicon rubber solution containing inorganic nano-materials is obtained; then the silicon rubber solution is placed at 110 ℃ for 18h to remove the dispersant and the surfactant (cationic silicone oil) with low boiling point from the solution, so that the surface of the inorganic non-metallic nano particles is fully exposed, and the effective sterilization and bacteriostasis functions of the inorganic non-metallic nano particles are maintained; then adding a vulcanizing agent and a catalyst into the uniform silicon rubber solution without the dispersing agent and the surface active agent under the conditions of room temperature and mechanical stirring, and stirring for 0.5 h; the full exposure of the surface of the inorganic non-metallic nano particles is kept (the chemical bond connection is generated between the inorganic non-metallic nano particles and the silicon rubber under the action of the surface treating agent, the nano particles are stirred again and do not agglomerate, and the dispersing agent and the surface activating agent are removed, so that the inorganic non-metallic nano particles can not be coated again); the stirred rubber material was injected into a hot mold of 45 ℃ by an injection molding machine (JPN50 injection molding machine, hong li machine, guangdong) to mold, and the anti-winding washing roller with sterilization function of the present invention was prepared.

Example 2

The difference from example 1 is that: in the raw material formula of the embodiment, the nano titanium dioxide is used as an inorganic non-metal nano material, and compared with nano silicon dioxide, the nano titanium dioxide can generate hydroxyl radicals under photocatalysis, so that the sterilizing capability is stronger, and the sterilizing effect of the washing roller is better; and other catalysts and surface treating agents are selected and used in different proportions.

74 parts of silicone rubber (methyl vinyl silicone rubber, MVQ, trade name: KE-571-U, shin-over silicone International trade Co., Ltd.)

4 portions of inorganic non-metallic nano material (nano titanium dioxide, DK405, Beijing Germany island gold science and technology limited, particle diameter: 35nm)

2 parts of catalyst (dibutyltin dilaurate, T-12, Bai Qian chemical Co., Ltd. in Shandong)

5 parts of surface treating agent (titanate coupling agent TM-200S, Chiari chemical Co., Ltd.)

Weighing silicon rubber, a nano titanium dioxide material, a vulcanizing agent (dicumyl peroxide (DCP)), a catalyst (dibutyltin dilaurate), a dispersing agent (acetone), a surface active agent (cationic silicone oil) and a surface treating agent (titanate coupling agent TM-200S) according to the mass ratio shown in the formula, and premixing the silicon rubber, the titanium dioxide nano material, the dispersing agent, the surface active agent and the surface treating agent for 1h by a mixer (BR-HR, Jiangsu Bell mechanical Co., Ltd.); then, a high-speed shearing nano-dispersion machine (ER2000, Shanghai Eiken mechanical Co., Ltd.) is adopted to carry out strong shearing dispersion on the mixture, the rotating speed of the high-speed shearing nano-dispersion machine is 6500 r/min, the shearing dispersion time is 2h, the step can ensure that inorganic non-metal nano-particles are not agglomerated and are uniformly dispersed, the nano-scale of the inorganic non-metal nano-particles is kept, and chemical bond connection is generated between the inorganic non-metal nano-particles and the silicon rubber under the action of a surface treating agent, so that a uniform silicon rubber solution containing inorganic nano-materials is obtained; then the silicon rubber solution is placed for 15 hours at the temperature of 120 ℃ to remove the dispersant and the surfactant (cationic silicone oil) with low boiling point from the solution, so that the surface of the inorganic non-metallic nano particles is fully exposed, and the effective sterilization and bacteriostasis functions of the inorganic non-metallic nano particles are maintained; then adding a vulcanizing agent and a catalyst into the uniform silicon rubber solution with the dispersant and the surfactant removed under the conditions of room temperature and mechanical stirring, stirring for 0.8h, and keeping the surface of the inorganic non-metallic nano-particles exposed; the stirred rubber material was injected into a hot mold of 50 ℃ by an injection molding machine (JPN50 injection molding machine, hong li, guangdong) to mold, and an anti-wind washing roller having a sterilization effect was prepared.

Example 3

The difference from example 1 is that: in the raw material formula of the embodiment, the nano zinc oxide is used as an inorganic non-metallic nano material, and other types of vulcanizing agents, catalysts and surface treating agents and different proportions are selected.

The anti-winding washing roller with the sterilization function comprises the following raw materials in parts by weight: :

3 portions of inorganic nonmetal nano material (nano zinc oxide, DK404, Beijing German island gold science and technology limited, particle diameter: 30nm)

Vulcanizing agent (Sulfur, industrial grade, Beijing Yanshan chemical Co., Ltd. of Chinese petrochemical group)

6 parts of dispersant (acetone, analytically pure, Shanghai Debong chemical Co., Ltd.)

4 parts of surface treating agent (aluminate coupling agent DL-411, new fine materials of Yuanchuan of Fuzhou Co., Ltd.)

Weighing silicon rubber, a nano zinc oxide material, a vulcanizing agent (sulfur), a catalyst (stannous octoate), a dispersing agent (acetone), a surface active agent (cationic silicone oil) and a surface treating agent (aluminate coupling agent DL-411) according to the mass ratio shown in the formula, and premixing the silicon rubber, the zinc oxide nano material, the dispersing agent, the surface active agent and the surface treating agent for 1 hour by a mixer (BR-HR, Jiangsu Bell mechanical Co., Ltd.); then, a high-speed shearing nano-dispersion machine (ER2000, Shanghai Eiken mechanical Co., Ltd.) is adopted to carry out strong shearing dispersion on the mixture, the rotating speed of the high-speed shearing nano-dispersion machine is 6500 r/min, the shearing dispersion time is 2h, the step can ensure that inorganic non-metal nano-particles are not agglomerated and are uniformly dispersed, the nano-scale of the inorganic non-metal nano-particles is kept, and chemical bond connection is generated between the inorganic non-metal nano-particles and the silicon rubber under the action of a surface treating agent, so that a uniform silicon rubber solution containing inorganic nano-materials is obtained; then the silicon rubber solution is placed at the temperature of 115 ℃ for 16 hours, so that the dispersing agent and the surfactant (cationic silicone oil) with low boiling point are removed from the solution, the surface of the inorganic non-metallic nano particles is fully exposed, and the effective sterilization and bacteriostasis functions of the inorganic non-metallic nano particles are maintained; then adding a vulcanizing agent and a catalyst into the uniform silicon rubber solution with the dispersant and the surfactant removed under the conditions of room temperature and mechanical stirring, stirring for 1h, and keeping the surface of the inorganic non-metal nanoparticles exposed; the stirred rubber material was injected into a hot mold of 55 c using an injection molding machine (JPN50 injection molding machine, guangdong hongli machines ltd.) to mold, and an anti-wind washing roll having a sterilizing effect was prepared.

The anti-winding washing roller with the bactericidal effect obtained in the example is subjected to tensile strength test and bactericidal and bacteriostatic performance test methods and results are as follows.

1. Tensile Strength test

The mechanical tensile strength test method of the embodiment of the washing roller comprises the following steps:

the tensile property test is carried out on the sample by adopting a tensile mode of a German Zwick/Roell Z010 type universal tensile machine according to the national standard GB/T1040-92. The test specimens are standard dumbbell-type bars, the specimen width being 10mm, the thickness 4mm and the drawing speed 50 mm/min.

The tensile strength test results of the washing roller disclosed by the invention are shown in table 1, and the mechanical strength requirements of the washing machine in use are met.

2. Test of bactericidal and bacteriostatic properties

According to the detection of the centers for analyzing and detecting microorganisms in Guangdong province of Commission according to the national standard GB15979-2002 appendix C5, the sterilization and bacteriostasis rates of the embodiments of the washing roller disclosed by the invention to common germs are all more than 97%, as shown in Table 1.

TABLE 1 Bactericidal and bacteriostatic effects and tensile strengths of the examples of the present invention

The mildew-proof rating in table 1 is no mildew growth grade 0.

Tests prove that the anti-winding washing roller with the sterilization function has good mechanical strength and sterilization and bacteriostasis performance; wherein

The literature (Wangxu, Liangjiyu, XiuZujiang, Yi Yue Tao. preparation and performance of organic/inorganic nano hybrid antibacterial agent for leather [ J ]. Chinese leather, 2018, 47(04):9-15+26) reports that although the common silver ions or nano silver systems have obvious antibacterial effect, the defects of poor dispersibility and stability and durability and the like exist; the natural antibacterial agent has short service life, poor heat resistance and certain limitation; most of organic antibacterial agents have high toxicity, can cause microorganisms to generate drug resistance, have poor heat resistance, are easy to migrate and the like; the inorganic non-metal nano particle antibacterial agent has the characteristics of self-cleaning property, persistence, durability, broad spectrum and the like, and has the advantages of good heat resistance, high safety, difficult generation of drug resistance and the like.

The literature of Wangxu et al only indicates that inorganic non-metallic nanoparticles have excellent antibacterial properties, which utilize TiO₂The surface is grafted with acrylate polymer, and the quaternary amination treatment is carried out on the acrylate polymer to prepare the polymer quaternary ammonium salt for leather antibiosis. However, in the technology, the organic matter and the inorganic nano material are subjected to hybridization treatment, the defects of easy consumption of the organic matter, lack of long-term effectiveness, poor safety and the like still exist, and the nano material loses the sterilization function of the nano-scale effect due to the agglomeration problem. The preparation method comprises the following steps of coating inorganic non-metal nano particles by using a dispersing agent and an activating agent, so that the uniform dispersion of the nano particles is realized, and the particles are not agglomerated in a silicon rubber matrix material; then, chemical bond connection is generated between the inorganic non-metal nano particles and the silicon rubber under the action of the surface treating agent, so that the inorganic non-metal nano particles are not agglomerated in the subsequent process; then removing the dispersant coated on the surface of the inorganic non-metallic nano-particle and activating the dispersant by a high-temperature standing processThe agent fully exposes the surface of the inorganic non-metallic nano particles, thereby ensuring that the inorganic non-metallic nano particles in the silicon rubber material keep effective sterilization and bacteriostasis efficacy. The invention can fully expose the surface of the inorganic non-metal nano particles while keeping the nano-scale effect of the inorganic non-metal nano material, thereby solving the difficult problems in the prior art.

In the invention, the inorganic non-metal nano particles and the silicon rubber are connected by chemical bonds under the action of the surface treating agent, and the inorganic non-metal nano particles can not be agglomerated again after being stirred again in the subsequent process; after the dispersing agent and the surface active agent on the surface of the inorganic non-metallic nano material are removed by a high-temperature standing process, the nano particles can not be coated any more, so that the full exposure of the surface of the inorganic non-metallic nano particles is kept, and the effective sterilization and bacteriostasis functions of the inorganic non-metallic nano material in the silicone rubber are ensured. The test results in table 1 show that the sterilization and bacteriostasis rate of the embodiment of the invention to escherichia coli is higher than 99.80%, the sterilization and bacteriostasis rate to staphylococcus aureus is higher than 97.55%, and the sterilization and bacteriostasis rate to salmonella is higher than 97.58%. The invention maintains the lasting sterilization rate, and simultaneously, the tensile strength of the material exceeds 5.88MPa, which shows that the material of the invention has better mechanical property and good dispersibility.

The invention effectively solves the problem of clothes winding: multiple rows of anti-winding tooth sheets are uniformly arranged in the long axis direction of the washing roller along the circumferential direction, each anti-winding tooth sheet is provided with a smooth concave-convex tooth-shaped edge, the concave-convex tooth-shaped edges have two heights, one is higher and the other is staggered, water flow can form backflow between the high and low tooth sheets, so that the tooth sheets can be in contact with and rub with clothes, and the tangled clothes are loosened, thereby effectively preventing the clothes from being wound in the washing process, and solving the problem that the anti-winding effect of CN204959375U needs to be improved;

the invention can increase the contact area between the clothes and the washing roller during washing, and the rotation of the impeller or the rotary drum drives the clothes and the washing roller to generate contact and friction, so that the friction between the washing roller and the clothes is increased, the effect similar to hand rubbing is generated, the washing force to the clothes is stronger, and the clothes can be smoothed out to achieve the purposes of preventing winding and greatly improving the washing capability of the clothes.

The main body of the washing roller adopts an ellipsoid, the shape of the ellipsoid is similar to a rugby ball shape, the ellipsoid is easier to rotate along with clothes than a cylinder along with the stirring of the washing machine during washing, and the ellipsoid is more consistent with the water flowing behavior in the fluid mechanics principle, and the whole shape of the washing roller is still in the ellipsoid after the anti-winding tooth sheet is added, so that the washing roller can smoothly rotate along with the rotation of the clothes during use.

It should be noted that the present invention is not limited by the above-mentioned embodiments, and various changes and modifications can be made in the present invention without departing from the spirit and scope of the present invention, and these changes and modifications fall into the protection scope of the claimed invention; the scope of the invention is defined by the following claims.

Claims

1. An anti-winding washing roller with a sterilization effect is characterized by comprising a left hemisphere, a right hemisphere and a concave-convex anti-winding tooth sheet; the left hemisphere and the right hemisphere are connected to form a hollow ellipsoid; the surface of the hollow ellipsoid is provided with a plurality of micropores for water convection; the outer surface of the hollow ellipsoid is provided with a plurality of concave-convex anti-winding tooth sheets at intervals along the long axis direction of the ellipsoid, each concave-convex anti-winding tooth sheet consists of a plurality of tooth sheets which are arranged in a staggered mode, the height of the concave-convex anti-winding tooth sheet is gradually increased from two ends to the middle of the concave-convex anti-winding tooth sheet, and the radian of the concave-convex anti-winding tooth sheet is similar to that of the surface of the hollow ellipsoid;

the silicon rubber is methyl vinyl silicon rubber;

the catalyst is dibutyltin dilaurate or stannous octoate;

the surface active agent is cationic silicone oil;

2. The antiwind washing roller having sterilizing effect as claimed in claim 1, wherein the concavo-convex antiwind teeth pieces are 6-8 pieces.

3. The anti-winding washing roller with the sterilization function as claimed in claim 1, wherein a sponge ball is arranged in the cavity of the hollowed ellipsoid; the sponge ball is in an ellipsoid shape, and the size of the sponge ball is consistent with that of the hollow-out ellipsoid.

4. The anti-winding washing roller with sterilization function as claimed in claim 1, wherein the left hemisphere and the right hemisphere are connected by screw threads.

5. The anti-winding washing roller with the sterilization function as claimed in claim 1, wherein the concave-convex anti-winding tooth sheet is connected with the hollow ellipsoid in an arc shape.

6. The anti-winding washing roller with sterilization function of claim 1, characterized in that the vulcanizing agent is dicumyl peroxide (DCP), sulfur or tetraethyl orthosilicate.

7. The anti-winding washing roller with sterilization function as claimed in claim 1, characterized in that the surface treatment agent is a silane coupling agent, a titanate coupling agent or an aluminate coupling agent.

8. The anti-wind washing roller with sterilization function as claimed in claim 7, wherein the silane coupling agent is KH-460 or Z-4060; the titanate coupling agent is TM-200S, ZJ-311W or PN-311W; the aluminate coupling agent is DL-411.

9. The anti-winding washing roller with sterilization function as claimed in claim 1, wherein the pre-mixing of the silicone rubber, the inorganic non-metallic nano material, the dispersing agent, the surfactant and the surface treatment agent is performed by pre-mixing the silicone rubber, the inorganic non-metallic nano material, the dispersing agent, the surfactant and the surface treatment agent for 1-2 hours through a mixer.

10. The method for preparing an antiwind washing roller having antibacterial effect of any one of claims 1 to 9, wherein the hollowed-out ellipsoids and the concavo-convex antiwind tooth sheets are prepared by the steps of: