Which manufacturers have good quality of nano zinc oxide 20

You can choose some merchants to compare according to your needs and budget. Bosses who have zinc oxide needs, it is recommended to learn about Hebei Qingbenzhe Chemical Technology [click to learn more product details of Qingbenzhe Chemical and **].

The color of zinc oxide itself is white, with the increase of temperature it will gradually change from white to light yellow, at this time the temperature continues to increase, zinc oxide will change from light yellow to lemon yellow, and so the temperature slowly decreases, the color will fade back to white from dark to light. That's what's changed inside the thermometer.

As the zinc oxide process becomes more and more sophisticated, in addition to the original function of zinc oxide, it has been recently discovered that this upgraded zinc oxide can effectively prevent the discoloration of the coating film. In addition to cosmetics, this zinc oxide can also be used as a raw material for automotive paints, furniture building materials, inks, oil paints, and anti-aging agents for rubber and plastics. What's more, it can be coated on transparent film of food packaging and covered with polyethylene film.

Hebei Qingbenzhe Chemical Technology Co., Ltd. has always firmly believed that the company's development is inseparable from the support and trust of customers, and the company's rubber accelerators, calcium and zinc stabilizers, lead salt stabilizers, zinc oxide and other products have been widely praised. The company will continue to deny the past, actively explore, and return users from all walks of life with high-quality products and services. Welcome friends from all walks of life to visit the factory to guide, discuss cooperation, the company is willing to work together with customers to create brilliant.

There are many manufacturers of nano zinc oxide, and if you want to judge the best of that one, you have to compare it from the content, and you must choose to have:

1. Low heavy metal content: basically 5-10 times lower than the national standard, 2. Large specific surface area: up to 60 90 square meters;

3. The particle size of the product is small: less than 10 nm accounts for 48%, less than 20 nm accounts for 71%, less than 50 nm accounts for 98% and other characteristics.

Choose nano zinc oxide, one is to look at the purity of heavy metals, and then to compare the particle size and specific surface area, there is a kind of spherical zinc oxide nano materials on the market, the antibacterial addition can achieve the antibacterial rate, the catalytic industry is also very widely used, but the first is a little higher! All things considered@! As far as the manufacturer is concerned, Zhejiang's is good, there is an office in Shanghai, the person in charge is surnamed Jiang, the service attitude is very good, the main technology is complete, and it can really solve the problem!

We are the production of coatings, we are also looking for good antibacterial inorganic materials, last time in Hangzhou, Zhejiang Province to find one, their products sterilization, purification effect is quite good.

You can go to Kunshan to ask, the heavy metal content is less than 10ppm, which can replace the imported nano-scale zinc oxide.

It is difficult to have pure nano zinc oxide in the market.

The application of zinc oxide in our daily life.

Nano zinc oxide is a new type of high-functional, high-value-added fine inorganic chemical product for the 21st century. Its particle size is between 1100 nanometers, and it is also known as ultrafine zinc oxide. Due to the miniaturization of grains, the surface electronic structure and crystal structure change, resulting in surface effects, volume effects, quantum size effects, macroscopic tunneling effects, high transparency, and high dispersion that macroscopic objects do not have.

In recent years, it has been found that it has shown many special functions in catalysis, optics, magnetism, mechanics, etc., making it have important application value in many fields such as ceramics, chemical industry, electronics, optics, biology, medicine, etc., and has the particularity and use that ordinary zinc oxide cannot compare. Due to the series of excellent and very attractive application prospects of nano zinc oxide, the research and development of nano zinc oxide has become the focus of attention of many scientific and technological personnel.

The use of nano zinc oxide: nano zinc oxide (ZNO) has the properties of light, electricity, magnetism, heat, sensitivity and other properties that conventional bulk materials do not have, and the product activity is high, with the functions of anti-infrared, ultraviolet and sterilization, and has been widely used in sunscreen cosmetics, antibacterial, anti-odor and anti-ultraviolet new functional fibers, self-cleaning antibacterial glass, ceramics, anti-infrared and ultraviolet shielding materials, sanitary ware and sewage treatment products.

Zinc oxide is an indispensable additive in the rubber and tire industry, and is also used as a vulcanizing active and reinforcing agent and colorant for natural rubber, synthetic rubber and latex. Nano zinc oxide used in rubber can give full play to the vulcanization promotion effect and improve the performance of rubber, and its dosage is only 30% 50% of ordinary zinc oxide.

In the chemical industry, zinc oxide is widely used as a catalyst and desulfurizer, such as a catalyst in the synthesis of methanol and a desulfurizer in the synthesis of ammonia; The high surface activity of nano-zinc oxide can improve the selection performance and catalytic efficiency of catalysts, and has a wide range of potential application markets.

In the coating industry, zinc oxide is not only a tinting power and hiding power, but also a preservative and luminescent agent in coatings; In addition, the excellent ultraviolet shielding ability of nano zinc oxide makes it have outstanding characteristics in the anti-aging of coatings.

In the medicine and health and food industry, zinc oxide has the functions of pulling out poison, stopping bleeding, and astringentizing muscles, and is also used as a raw material for plaster, and is helpful for promoting children's intellectual development; The demand for nano zinc oxide in the food hygiene industry is gradually expanding, but the product requirements are also relatively strict, especially the content of harmful heavy metal elements.

In the glass industry, zinc oxide is used in special glass products; In the ceramic industry, zinc oxide is used as a flux; In the printing and dyeing industry, zinc oxide is used as an anti-dyeing agent; Due to the fine particles and high activity, nano zinc oxide can reduce the sintering temperature of glass and ceramics, and the ceramic glaze prepared by nano zinc oxide is more smooth and clean, and has the effects of antibacterial, anti-enzyme and deodorization.

In the electronics industry, zinc oxide is not only the main raw material of varistors, but also the main additive of magnetic, optical and other materials. The use of nano zinc oxide to prepare varistors not only has a low sintering temperature, but also improves the performance of the varistor, such as the current capacity, nonlinear coefficient, etc. The application of nano zinc oxide in optical devices will make a great breakthrough with the in-depth study of the optical properties of nano zinc oxide.

The core index of nano-zinc oxide is the specific surface area. Products with different specific surface areas have a great impact on the performance of rubber products. The following is the experimental data of the formulation application of load bias tires in a large tire factory.

There is a correlation between the physical properties and use properties of rubber compounds and the specific surface area of materials. From the perspective of the tensile properties of the rubber compound, nano zinc oxide can significantly improve the tensile strength of the rubber compound without reducing the elongation rate. With the increase of the specific surface area of the material, this trend is obvious.

However, it is more obvious that the abrasion reduction of the rubber compound and the reduction of the temperature rise of compression fatigue are reduced. It can be seen that when the specific surface area reaches more than 80m2 g, nano-zinc oxide can exhibit excellent comprehensive properties that ordinary zinc oxide does not have. Although the specific surface area of less than 80 m2 g of nano zinc oxide is also better than that of ordinary zinc oxide, the gap is still obvious compared with that of more than 80 m2 g.

The compression fatigue temperature rise of ordinary rubber compound is 48, reducing heat generation by 25%, which is very obvious, which is very important for dynamic use of rubber products such as tires. This is due to the small size effect of nanomaterials to reinforce the rubber compound, which reduces the deformation of the rubber compound. Although carbon black reinforcing rubber can also reduce the deformation of rubber compound, its elasticity decreases and hysteresis loss increases, resulting in a sharp increase in heat generation, while the above shortcomings are avoided after nano zinc oxide reinforcement, so its heat generation is significantly reduced.

Nano zinc oxide has a high elastic modulus and low hysteresis loss, which becomes more and more obvious with the increase of the specific surface area of the material, which is very consistent with the results of the heat generation test, and provides a very good help for the service life of dynamic products such as tires. In addition, it should be pointed out that this feature of nano zinc oxide is also reflected in the tire carcass rubber, but it is not as significant as the tread rubber, which is related to the high elasticity, low hysteresis, low heat generation, less carbon black filling, and low structure of the carcass formula itself, and the heat generation reduction in the carcass formula is about 10%. The tensile strength and elongation at break of nano-zinc oxide rubber compounds are significantly better than those of ordinary rubber compounds after hot air aging, which may be related to the small size effect of nano-zinc oxide increasing the cross-linking network density and the molecular level bonding of polymer materials.

At present, many rubber miscellaneous parts factories, especially the sealing industry, welcome and attach great importance to the feature of nano zinc oxide.

For tires and other dynamically used products in use, due to thermal and oxidative aging, it is inevitable that the performance of the material will decline and eventually lead to product damage, and it is very important to improve the performance retention rate of the material under aging conditions and ultimately delay the damage to prolong the service life of the product. Below is a set of data from the indoor mileage test and the actual road test of the application of nano zinc oxide in the tire factory. Among them, the formulations using nano zinc oxide are tire crown rubber, shoulder rubber, cushion rubber and outer layer rubber.

Zinc oxide is the electronic structure of a semiconductor catalyst, when a photon with a certain energy or a photon with more than this semiconductor band gap energy eg is injected into the semiconductor, an electron is excited from the valence band vb to the conduction band cb, leaving a hole. The conduction band electrons and valence band holes in the excited state can be recombined to eliminate the input energy and heat, the electrons are caught in the surface state of the material, the valence electrons jump to the conduction band, and the holes in the valence band snatch the hydroxyl electrons in the surrounding environment to make the hydroxyl group become free radicals, which are used as strong oxidants to complete the degradation of organic matter (or chlorine) and kill germs and viruses.

Shijiazhuang Dayou Zinc Industry Co., Ltd., founded in 1980, was formerly known as Gaoyi County Mining and Smelting Chemical Plant, and was restructured into a company in 1999; It is located in Gaoyi County Chemical Plant, close to National Highway 107, east of Beijing-Guangzhou Railway Line, and only 8 kilometers away from the exit of Gaoyi County of Beijing-Shenzhen Expressway, with convenient transportation. The company has 180 employees, including 20 technicians, fixed assets of 30 million yuan, and a total annual production of 6,000 tons. The main products include:

Indirect zinc oxide, direct zinc oxide, activated zinc oxide 95%, basic zinc carbonate, light magnesium oxide, light magnesium carbonate, rubber accelerator series, antioxidant series and so on.

The company has a team of skilled and experienced technical personnel specializing in zinc oxide research and development, quality management and application technology services and promotion, and has carried out extensive cooperation with many domestic universities and research institutes, equipped with advanced testing and experimental instruments and equipment, superior experimental conditions, according to the national industrial policy, for the current international and domestic cutting-edge technology and market demand, Continuously improve the quality of existing products to meet the needs of society.

With excellent corporate culture and advanced business philosophy, the company has built a platform for cooperation between customers and employees and peers in the industry. More than 30 years of development, the company's employees work together to share the house, the support of the majority of new and old customers, the achievements of Shijiazhuang Dayou Zinc Industry **** brilliant achievements in recent days!!

To choose nano zinc oxide, one is to look at the purity of heavy metals, and the second is to compare the particle size and specific surface area. For example, the production scale of Panhong Nano Technology is 1,000 tons of zinc baked sand and 600 tons of nano zinc oxide and zinc carbonate per month. It's still relatively large.

The manufacturers of nano-scale zinc oxide and zinc oxide dispersion mainly include Dasino Nano Technology (Changzhou) ****, which operates all kinds of nano-zinc oxide and zinc oxide dispersion products, which can be used in coatings, feed, textiles and other fields.