Nano Silver Ion Antibacterial Liquid(colloidal silver)Used For Continuous Sterilization Of Mobile Phone Antibacterial Protective Film

According to a notice issued by the Ministry of Industry and Information Technology of China at the end of July 2017, as of the end of the second quarter, China’s mobile phone users reached 1.365 billion, of which 4G users reached 888 million, accounting for 65.1%. With the widespread use of smart phones, mobile phones have become the most inseparable necessities for most people every day. Communication via WeChat via telephone, convenient online shopping, universal use of mobile payment, mass video entertainment teaching… all kinds of necessary use occasions, new mobile phone models are constantly being produced, making mobile phones a “beloved thing” for many people.

 

However, with the gradual lengthening of the “honeymoon period” between people and mobile phones, health problems caused by mobile phones have also begun to become people’s hidden worries. The convenience, anytime and frequent use of mobile phones has made it a “hotbed” of bacteria and viruses in the public and personal hygiene fields. Various harmful bacteria and even viruses lurking on the sliding or reading screen make this square thing. It has become a hygienic corner that is difficult for even a clean addict to clean up.

 

Let the screen protector, a common accessory for mobile phones, protect the phone while reducing the potential hazards of a variety of bacteria and viruses, and become people’s personal health guard! This magical idea was realized by Fujifilm. In 2015, Fujifilm developed a Hydro Ag+ silver ion mobile phone antibacterial protective film. This product combines Fujifilm’s 80 years of research results on “silver halide” and “precision coating” technology in the film field, which can quickly and long-term kill It kills bacteria and viruses, and the antibacterial effect reaches “medical grade”. The antibacterial time lasts for 18-24 months. It is a cross-age antibacterial product that surpasses traditional technology. It carefully protects the health of all kinds of LCD touch screen device users, and can also satisfy Needed by those who have higher requirements for environmental hygiene.

 

Powerful bactericidal nano silver ion solution—colloidal silver

 

Silver ion, chemical symbol Ag+, is an inorganic antibacterial substance, which is firmly adsorbed on the cell membrane by Coulomb’s gravitation and penetrates the cell wall into the cell to solidify the cell protein, and the cell will die due to the loss of the ability to divide and proliferate. In addition, silver ion Ag+ can also destroy the microbial electronic transmission system, respiratory system, and material transmission system. When the bacteria lose their activity, the silver ion Ag+ is freed from the bacteria and repeated sterilization, so its antibacterial effect is long-lasting. Silver ions have a strong bactericidal ability. As long as each liter of water contains two billionths of a milligram of silver ions, most of the bacteria in the water can be killed. In particular, hexagonal nano silver particles have stronger antibacterial properties than spherical and triangular nano silver particles. In addition, silver ion inorganic antibacterial substances, compared with more organic compound antibacterial substances on the market, have obvious advantages in combating multi-drug resistant bacteria.

 

Fujifilm applied the precision coating technology cultivated in the film to the research and development of the Hydro Ag+ antibacterial film, and developed an unprecedented super-hydrophilic coating structure. The ordinary silver-based antibacterial film can only release silver ions from the antibacterial agent on the surface of the coating film, so the antibacterial performance is low and the duration is short; while the Fuji silver ion Hydro Ag+ antibacterial film uses precision coating technology to make the silver antibacterial The agent realizes a three-dimensional structure in the coating film, and the hydrophilic polymer and hydrophilic group are uniformly erected from the inside to the surface, which can not only absorb moisture in the air, promote the release of silver ions from the silver antibacterial agent, but also allow The silver-based antibacterial agent dispersed in the coating film continuously releases silver ions from the inside to the surface, making the antibacterial and antiviral effects last for 18-24 months, achieving unprecedented high antibacterial performance and high sustained effects.

 

Fuji Hydro Ag+ silver ion antibacterial protective film can not only be applied to mobile phones, but also further developed into a screen protective film for commonly used electronic devices such as tablets and laptops to inhibit the spread of various bacteria and viruses. Do not let mobile phones and other electronic devices Becoming an important part of the spread of germs has great practical significance.

 

Currently abroad, Fujifilm’s Hydro Ag+ silver ion antibacterial protective film is also used in hospitals, medical equipment display screens and other places and facilities that have high requirements for sanitary conditions.

 

In a hospital environment where harmful bacteria and even super bacteria are concentrated, it is not enough to ensure that the screens of imaging equipment frequently operated by medical staff are kept hygienic. Regular cleaning alone is not enough. The screen protection film, which can be antibacterial and antiviral by itself, is not easy to be contaminated with various pollutants, can greatly reduce the daily cleaning and disinfection burden of medical workers. It is conceivable that in the areas covered by Fuji Hydro Ag+ silver ion antibacterial protective film, “health and peace of mind” can be more realized. At home, mothers can safely allow their children to operate mobile phones, ipads, and Kindles for interactive learning; in laboratories, food stores and other places, researcher operators can reduce the degree of worry about the uncleanness of the operating screen; in ATMs, self-service ticketing systems , Self-service registration machines and other public facilities, the public’s health is also an escort.

 

Continuously create exciting and revolutionary technologies, products and services, and become a force to increase the infinite possibilities of future business and life. Fujifilm has been practicing.

 

Hongwu Nano is mainly engaged in the R&D, production, sales and after-sales of micro-nano silver products. The series of products include: antibacterial colloidal silvernano-silver antibacterial dispersion, nano-silver particle antibacterial solution, nano-silver powder, ultra-fine silver powder, flake silver powder, conductive silver powder , Bright silver powder, silver-coated copper powder, etc. The company currently has an annual production capacity of 3 tons of nano silver and 5 tons of conductive silver powder. Welcome to contact with us!

Four common metal conductive powders

Conductive materials can conduct current well because they have a large number of charged particles that can move freely under the action of an electric field, including conductor and superconducting materials.

The following are the four most widely used metal conductive materials.

Pure silver conductive powder (Ag99.99%)

1) Flake:

Common available particle size: <1um, 1-3um, 3-5um, 5-8um, 8-10um, particle size, and apparent density can be customized according to requirements. Flake silver powder with low apparent is available.

Appearance: silver gray with metallic luster

Application: Flake silver powder is a high-performance conductive filler material with good oxidation resistance. Flake Ag particle is the main raw material for making conductive coatings, membrane switches, conductive inks, conductive rubber, conductive plastics, and conductive ceramics.

Flake Ag powder is an ideal raw material for good low-temperature polymer slurry, conductive paint and electromagnetic shielding paint. The coating prepared with flake silver powder has good fluidity, anti-settling and large spray area.

2) Spherical silver conductive powder:

Common particle size: <1um, 1-3um, 3-5um,5-8um,etc

Application: Near-spherical silver powder is mainly used as conductive filler for high-temperature sintered conductive paste.

There is no absolute standard for silver powder as a conductive filler. The choice of silver powder should be based on the corresponding adhesive, the target conductor material, the physical and chemical properties of the film, and the reliability requirements.

 

Silver coated copper conductive powder (common particle size is 1-3um, 3-5um, 5-8um, 10um, Ag content ranges from 3%-35%)

Features:

1) Silver coated copper powder has adjustable superfine particle size.

2) Ag coated Cu powder has several shapes, such as spherical, flake, dendritic, etc.

3) Silver-coated copper powder has excellent conductivity and lower cost, which can replace some applications of pure silver powder.

4) Silver-coated copper powder has good oxidation resistance and dispersion, and can be used in medium and low temperature slurry.

Application range: It can be widely used in conductive adhesives, conductive coatings, polymer pastes, and various industries that require electrical conductivity and static electricity, electromagnetic shielding, and surface metallization of non-conductive materials.

Silver-coated copper powder can be widely used in conductive adhesives, conductive coatings, polymer pastes, and various fields of microelectronics technology that need to conduct electricity and static electricity, and non-conductive materials surface metallization. It is a new type conductive composite powder. Ag-Cu powder is widely used in the fields of electrical conductivity and electromagnetic shielding in various industries such as electronics, electromechanics, communications, printing, aerospace, and military industries, such as computers, mobile phones, integrated circuits, various electrical appliances, electronic medical equipment, electronic instruments, etc., so that products are not interfered by electromagnetic waves, while reducing the harm caused by electromagnetic radiation to the human body, as well as the conductivity of colloids, circuit boards, and other insulators, to make the insulated object have good electrical conductivity.

 

Pure copper powder (Cu 99%+)

Common particle size: <1um, 1-3um, 3-5um, 5-8um, etc.

Features: spherical and flake shape, uniform particle size, good dispersion, high crystallinity

Applications: Manufacture of terminals and internal electrodes of multilayer ceramic capacitors(MLCC), electronic components and electronic pastes, etc.

Pure nickel powder (Ni 99.7%): Common particle size: 1-3um

As a functional conductive filler, nickel powder can be added in coatings, adhesives, inks, plastics, rubbers, and can be made into conductive, electromagnetic shielding, anti-static  products, to be used in electronics, electromechanics, communications, printing, aerospace, weapons and other industrial sectors in the field of electrical conductivity. Such as computers, mobile phones, electronic medical equipment, electronic instruments and meters.

Guangzhou Hongwu Material Technology Co., Ltd. supplies the conductive materials mentioned above, with reliable high and stable quality, reasonable prices and excellent customized service.

Antibacterial Mechanism and Use of Zinc Oxide Nanoparticles

Nano zinc oxide ZNO is a new type of multifunctional fine inorganic material. Due to the miniaturization of particles, nano zinc oxide powder produces surface effects, small size effects, quantum effects and macro quantum tunneling effects that are not available in bulk materials. It exhibits many special properties, such as non-toxic, non-migrating, fluorescent, piezoelectric, antibacterial and deodorizing, absorbing and scattering ultraviolet rays, etc. Due to the abundant sources of ZnO raw materials and low prices, while zinc is also a mineral element necessary for the human body, nano-ZnO has become one of the hotspots in the research of inorganic antibacterial agents.

Nano-zinc oxide also has many new uses in the field of science and technology, such as manufacturing gas sensors, phosphors, antibacterial materials, ultraviolet shielding materials, varistors, image recording materials, piezoelectric materials, pressure-sensitive materials, varistors, high-efficiency roughness, and magnetism. Materials and plastic films, etc.

There are two antibacterial mechanisms of nano-zinc oxide ZNO:

Photocatalytic antibacterial mechanism. That is, nano-zinc oxide can decompose negatively charged electrons in water and air under the irradiation of sunlight, especially ultraviolet light, while leaving positively charged holes, which can stimulate oxygen change in the air. It is active oxygen, and it oxidizes with a variety of microorganisms, thereby killing the bacteria.

The antibacterial mechanism of metal ion dissolution is that zinc ions will gradually be released. When it comes into contact with the bacteria, it will combine with the active protease in the bacteria to make it inactive, thereby killing the bacteria.

The antibacterial finishing and research on cotton fabrics by nano-zinc oxide and ordinary zinc oxide found that the antibacterial effect of nano-zinc oxide is the result of two antibacterial mechanisms of photocatalysis and metal ion elution. Nano-zinc oxide has antibacterial properties against Staphylococcus aureus Stronger than E. coli, the smaller the size of the nanoparticles, the stronger the photocatalytic effect.

The practical applications of nano-zinc oxide ZNO in antibacterial and anti-ultraviolet functions are summarized as follows:

The field of daily necessities

Applications in apparel, such as sweatshirts, blouses, uniforms, trousers, professional wear, swimwear and children’s wear. It is also used in industry and decoration, such as: advertising cloth, outdoor decoration cloth and so on.

Professional hygiene

For medical use, the antibacterial polyester staple fiber of nano-zinc oxide can be blended with cotton to make hospital bed sheets, surgical gowns, doctor work clothes, patient clothes, etc. For civilian use, it can be used in the food industry and various bedding, furniture cloth, decorative cloth, etc., sterile surgical gowns, sterile masks, sanitary covering materials, etc.

Fields of outdoor work

The anti-ultraviolet properties of nano-zinc oxide make it can be used to produce all kinds of parasols, curtains, transportation tarps and all kinds of tent cloths.

If you need to use nano zinc oxide powder for your application, please contact us.

Nano cesium tungsten oxide plays an important role in glass heat insulation

The promotion and application of energy-saving technologies have reached a global consensus, and many countries have successively introduced related policies. A large proportion of building energy consumption is lost through glass doors and windows. Similarly, in the hot summer, the sun’s exposure through the car glass is unbearable for drivers and passengers, accelerating the aging of the vehicle interior, and greatly increasing fuel consumption, increasing emissions, and damaging the environment. Therefore, it is necessary to find a glass heat-insulating agent that is both transparent and heat-insulating.

Cesium-doped Tungsten Oxide/Cesium Tungsten Bronze is an inorganic nanomaterial with good near-infrared absorption. It has uniform particles, good dispersibility, environmental friendliness, strong light transmission ability, good near-infrared shielding performance, and high transparency. Stand out from other traditional transparent insulation materials. It is a new type of functional material with strong absorption in the near-infrared region (wavelength 800-1200nm) and high transmittance in the visible light region (wavelength 380-780nm).

 

Chinese name: Cesium Tungsten Oxide/nano Cesium Tungsten Bronze 

English name: Cesium Tungsten Bronze,Cs0.33WO3 nanoparticles

CAS number: 189619-69-0

Molecular formula: Cs0.33WO3

Molecular weight: 276

Appearance: dark blue powder

 

At the same time, as a new type of automotive glass heat insulation agent, nano cesium tungsten oxide has the best near-infrared absorption characteristics. Usually, adding 2 g per square meter of coating can achieve an infrared blocking rate of more than 90% at 950 nm and more than 70% at the same time. The visible light transmittance.

The heat-insulating agent has been widely recognized by many glass manufacturers. This heat-insulating agent is used in the production of coated heat-insulating glass, coated heat-insulating glass, and laminated heat-insulating glass, which can significantly improve the comfort of the human body and save energy. . Nano cesium tungsten oxide can be said to be a kind of transparent heat-insulating nano powder. What you need to know is that cesium tungsten bronze nano powder is not really “transparent”, but a dark blue powder. “Transparency” mainly refers to the heat insulation dispersion, heat insulation film and heat insulation paint prepared from cesium tungsten bronze all exhibiting high transparency. Experts said that among them, the production of thermal insulation coatings needs to use film-forming materials, such as acrylic resin. Acrylic resin has excellent color and luster, good light and weather resistance, resistance to ultraviolet radiation without decomposition or yellowing, gloss and color retention, and can maintain the original color for a long time. Acrylic resin is often used in combination with other resins as a film-forming substance for transparent thermal insulation coatings. Some experts use polyurethane acrylate water-based resin as the film-forming material and nano-cesium tungsten bronze as heat-insulating particles to prepare transparent heat-insulating coatings, and apply them to architectural glass. Studies have shown that the coating has a transmittance of about 75% in the visible light region.

Hongwu Nano Company is now supplying nano-tungsten oxide in batches, including yellow tungsten, blue tungsten, purple tungsten, and nano-cesium tungsten oxide. The quality is reliable and you can directly seek quotations online. Welcome to cooperate.