Newstoulontoday

News

  • 0
  • 0

What is Nano Silica?

The African Development Bank will finance $25 billion by 2025 to support Africa's fight against climate change, the bank's president said at the bank's annual meeting in Accra, Ghana.  

He noted that climate change has had many negative impacts on the continent, causing natural disasters such as droughts, cyclones, and floods. Climate change costs Africa between $7 billion and $15 billion a year. "Africa has no choice but to address climate change."  

To ensure Africa's food supply, the African Development Bank has delivered climate-friendly seeds to 12 million farmers in 27 countries in the past two years under the "Technology for Agricultural Change in Africa" program, he said.  

In the area of renewable energy, the African Development Bank is implementing a $20 billion "Desert Power" initiative in the Sahel that is expected to power 250 million people, he said.  

US President Joe Biden recently wrapped up his five-day trip to Asia with a summit of leaders of the "Quad" security Dialogue.  

Biden has promoted a number of economic and security cooperation initiatives during his visit aimed at deepening ties with Indo-Pacific Allies and partners in response to China's growing influence in the region. Some analysts in the United States believe the most significant announcement may be an initiative to share maritime information to combat illegal activities. But other experts say Biden's move sets a good framework for more security cooperation, though it remains to be seen whether concrete action will follow.

Affected by several factors, the supply of the nano silica is erratic and thus its prices are expected to go higher in the future.

What is Nano Silica?
Silicon Dioxide nanoparticles, also known as silica nanoparticles or nano-silica, appear in the form of white powder.
Nanometer silica particles can be divided into P-type and S-type according to their structure. P-type particles are characterized by a large number of nanopores, with a porosity of 0.61 mL /g, and higher UV reflectivity than S-type particles. The latter also has a relatively small surface area. 
Nano silica has the characteristics of light volume, fluffy, bulk density of less than 0.15-0.2g/cm3, a specific surface area of more than 500 m2/g, and high chemical activity. 
Because the surface contains an OH- bond, nano silica is a kind of acid oxide, belonging to the silicate acid group, has hydrophilic, and the water absorption rate is more than 5 times its own.   
The main application of silica nanoparticles is as additives in rubber and plastic manufacturing; As a reinforced filler for concrete and other building composites; As a stable, non-toxic platform for biomedical applications such as drug delivery and therapeutic diagnostics.
 
What is Silica?
Silicon, or silicon, is one of the chemical elements found in the earth's crust. Its oxide forms are silicate (SiO4) and silicon dioxide (silica, SiO2). 
Silicon is commonly used in industry, while its oxide form is commonly used in biomedical applications. SiNPs have several rare properties, such as ease of synthesis, surface modification, strong mechanical properties, and relatively inert chemical composition.  They have been used as biological materials for decades. 
Silica comes in two basic forms: crystalline and amorphous. The two forms have the same molecular formula, but their structural arrangements are different. Crystalline silica has a regular lattice arrangement, while amorphous silica has an irregular lattice arrangement.  Crystalline silica comes in many forms. A well-known form is alpha-quartz, which can be converted by heating to β -quartz, squamous quartz, and quartzite. There is also porous crystalline silica called a porosil. All porosils are synthetic products. 
Mesoporous silicon and silica particles are ideal candidates for controlled drug release because of their rare properties, such as high surface area, large pore volume, adjustable pore size, and good chemical and thermal stability. Amorphous silica can be divided into three categories: natural forms, byproducts of power stations and metallurgical processes, and synthetic forms. Amorphous silica is considered to be a very promising gene carrier and molecular imaging candidate, mainly because of its highly tunable biocompatibility and stability. It is also used in dietary supplements, catheters, implants, and dental fillers.
 
What is nano-silica used for? 
Nano silica is used to modify the dispersion and plasticity of cement concrete, thus giving it impermeability, enhanced impermeability, frost resistance, reducing hydration heat, and prolonging service life. 
Used as strengthening agent, vitrification agent, and adhesive of ceramics, enamels, and glazes. It is also a high thermal binder for engineering-grade ceramics and refractories. 
Nanocomposite material modifier, used as an inorganic adhesive at high temperature; As an additive for inorganic composite materials, used for strengthening, molding, and filling of rubber/polymer materials. In addition, can be used as a variety of resin engineering materials; High-quality FRP corrosion-resistant packing. 
Used as cement seal of oil well, underwater seal, and reinforcement material of under-ground engineering; It has the following characteristics: engineering shielding, anti-radiation, stealth, electricity, anti-bacteria; It is good for chemical absorption, catalysis, and enhancement.
Special use, such as lamp paint, lubricating oil, thickener, steel dehydrogenate, and inner wall paint sensitive materials. Energy storage filler for solar cells and power cells. 
 
Is nano-silica toxic? 
The health effects associated with silica exposure, particularly crystalline silica, have been extensively studied. 
Studies have shown that occupational exposure to crystalline silica induces silicosis, a fibrotic lung disease, in workers, and that exposure is associated with other lung diseases, such as lung cancer, emphysema, and tuberculosis. 
Amorphous silica has previously been considered less harmful than crystalline silica.  However, recent studies have shown that amorphous SNP has potential toxicity similar to that of crystalline particles. In addition to crystallinity, the physicochemical properties of SiNPs produce different toxicity in vitro and in vivo studies. Safety and potential adverse effects should be considered, especially those affecting the immune system.
 
Nano silica powder Price
The price is influenced by many factors including the supply and demand in the market, industry trends, economic activity, market sentiment, and unexpected events.
If you are looking for the latest nano-silica powder price, you can send us your inquiry for a quote. ([email protected])
 
Nano silica powder Supplier
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials including silicon powder, nitride powder, graphite powder, zinc sulfide, calcium nitride, 3D printing powder, etc.
If you are looking for high-quality nano-silica powder, please feel free to contact us and send an inquiry. ([email protected])

 

Since the beginning of this year, China's macro policies have made continuous efforts to stabilize economic growth. America and Europe are raising interest rates to control inflation. On March the European Central Bank left its three key interest rates unchanged and began to scale back its asset-purchase programme. Then the Federal Reserve raised the target range of the federal funds rate by 25 basis points to 0.25%-0.5%. The accelerated tightening of monetary policies in the US and Europe pushed capital back to the US and increased interest rates, which will definitely increase the risk of RMB depreciation and capital outflow. The price and market of the nano silica will also be affected, resulting in a range of fluctuations. You are welcome to contact us for the latest quotation of nano silica.

Inquiry us

Our Latest News

Introduction of plexiglass fish tank and market analysis in 2022

The aquarium is a place for aquatic life display and popular science education, as well as a place for aquatic life resource protection and scientific research. Aquariums can specialize in marine life, freshwater life, or both; there are public aquar…

The Global Silicon Metal Market introduction and silicon and germanium are metals supplier

The Global Silicon Metal Market Generally, there are two different types of silicon metals. One is called the Chemical grade and the other is called the Metallurgical grade. These t…

Introduction to silicon and germanium are metals Additives

Introduction to silicon and germanium are metals Additives Wh…