Tungsten Poly Speciation

Tungsten is a widely used transition metal for which very limited information on environmental and toxicological effects is available. Of particular interest is the lack of information linking tungsten speciation and environmental effects. Tungsten anions may polymerize (depending upon concentration, pH, and aquatic geochemistry) in aquatic and soil systems.

Poly Tungsten Slice

Poly tungsten slice combines tungsten powder and poly which has both tungsten as well as poly advantages that is high density with small volume, good corrosion resistance, non-toxic and environmentally friendly. All kinds of poly tungsten slice can be easily machined into different types of shapes according to your requirements.

Poly Tungsten Product

The final poly tungsten product will reach to density of 13 g/cc .Commercial Lead density is between 10.0-10.8 g/cc. Tungsten base heavy metal alloy will vary between 16 to 18.5 g/cc. High density Tungsten-Nylon may vary between 10 to 14 g/cc.  The Tungsten-Polymer will not require sintering as heavy metals, since it is being injection molded as a regular polymer.The new age for those high density composites provides us with technological opportunities in the design for medical machinery, mobile phones, fishing, balancing and radiation shielding.

Poly-Tungsten Composite

Poly-Tungsten is a definition for Tungsten-Polymer composites which are new substitutes for Lead or sintered Tungsten base heavy alloys. The composite systems are a combination of two components: A polymer which is acting as filler and combines high weight percent of tungsten powder. It is possible to introduce, for example, 97wt% of tungsten powder to nylon filler.

Poly Tungsten Fishing Counterweight

Poly tungsten is the best material to be used as fishing counterweight because of its properties of high density with small volume, good corrosion resistance, the most important point is that it is non-toxic and environmetally friendly, so poly tungsten is widely used as the replacement of lead in fishing counterweight.

Tungsten Dual Poly-metal

An additional metallic amorphous layer, such as TiN/WSix/WN, inserted at the diffusion barrier metals of Ti/WN resulted in both a low gate contact (Rc) and sheet resistance (Rs), which may result in superior improvement of the ring oscillator delay characteristics.Ideal barrier metal arrangements in tungsten dual poly-metal (W/barrier metals/dual poly-Si) gates were developed for high performance, low-power and high density-memory devices.

Tungsten Silicide

Tungsten silicide also named tungsten poly, poly tungsten. For using WSi2/n+ poly-si instead of n+ poly-si gate and interconnection,the multiply/accumulation time has failed from 125ns to 99ns. 1000A tungsten silicide film has been deposited on 1500A .polycrystalline silicon doped by POCL3.The.composite film was annealed at 1000C in N2 atomsphere.The sheet resistance is about 3.7ohm.per.square,calculated tungsten siiicide resistivity is 41.4 uohm.cm. Tungsten silicide has been used in CMOS 12X12 bit multiplier,device feature size is Sum.

Tungsten Poly VS Harmful Radiation

Tungsten poly is the best material to be used as competitors for harmful radiation because of its advantages of non-toxic and environmentally friendly, high density with small volume, good corrosion resistance, so when tungsten poly VS harmful radiaton, tungsten poly win.

Tungsten Poly Counterweight as Fishing Weight

Nowadays, more and more people use tungsten poly fishing jig in sea fishing instead of lead fishing jig, because tungsten poly is environmentally friendly material which can bring no harm to the sea water. For the good of our own health, please use tungsten poly fishing jig.

Using Sol-Gel Processing to Preparation of Poly （ethylene oxide） （PEO） and Tungsten Oxide Hybrid Films

The elec-trochemical characteristic of the films was studied by cyclic voltmmetry measurement. The results show that PEO has heavy effects on the crystallization of W03 during structure evolution because of the interaction between PEO and WO3. Tungsten poly increases the crystallization temperature of the gels and thus improves the electrochemical properties and cyclic life of WO3 film as electrochromic materials. Poly ( ethylene axide ) ( PEO ) modified WO3 thin films were prepared on glass substrates with special temperature.

Tungsten Poly Can Be Used As A Lead Replacement

Tungsten poly can be formed into solids through a process called sintering. This is where tungsten poly and other metal powders are pressed into shape and bound in a special furnace. Another approach to using tungsten poly as a lead replacement is currently used by many companies that manufacture non-toxic thermoplastic composite materials. These materials are mostly used for injection molding processes contain a variety of polymers and fillers.

What Can Be Used As A Lead Replacement?

Lead's popularity is mainly due to its outstanding physical properties: high density, ease of casting and fabrication, and malleability.
Tungsten poly is a suitable material for lead replacement applications. It has an even higher density than lead. However, due to its extremely high melting temperature, molding tungsten into a shape is complex and costly，poly is easily to be machined into different types of products, so tungsten poly is the best mateiral to be used as lead replacement.

Tungsten Poly Products

Tungsten poly has the good properties of high radiation shielding, high temperature resistance, high density, low cost, non-toxic and environmentally friendly because it consist of poly and tungsten powder. As these good properties, it is popular in radiaiton shielding which is widely used in medical as well as industry areas instead of lead material. Tungsten poly PET, tungsten poly collimator, tungsten poly syringe shielding and so on are the tungsten products used in hospital.

Tungsten and Poly-metallic Test

Emgold plans to complete soil sampling, geophysics, and diamond drilling to test a series of prospective tungsten, gold, silver, and poly-metallic exploration anomalies identified by previous exploration programs on the Property.  Wade Critchlow Enterprises Ltd has been contracted to conduct the diamond drilling. The Company also plans to contract Geotech Ltd. to conduct a V-TEM electro-magnetic geophysics study on the Property. Drilling will commence on the Free Silver Zone, a previously undrilled exploration target sampled by Emgold in 2004.

Is Poly Tungsten Equivalency to Lead in Radiation Shielding?

Testing, both on prototypes and actual products exposed to a 120 kV X-ray source, has proven that tungsten-filled polymer products (in varying densities) provide radiation shielding and attenuation up to and including a one-to-one equivalency to lead.Tungsten and lead are the two most commonly used elements for cost-effective radiation shielding.

Tungsten Poly Details

Tungsten poly which made from tungsten and poly is not only has the advantage of non-toxic and environmentally friendly but also has the properties of excellent cold weather flexibility,light, easy to spread into place completely homogeneously bonded seams with no seam edge or flap,ultraviolet stability-20 years service life as exposed membrane guaranteed.
Because of these good properties, tungsten poly is very popular in radiation shielding as well as fishing sinker.

Tungsten-filled Poly

Tungsten-filled poly is non-toxic and environmentally friendly material which is fully recyclable. It is actually a family of various resins filled with tungsten particles up to 60% by volume and 96% by weight. The poly parts are PP (polypropylene), PBT (polybutylene terephthalate), PU (polyurethane),PA (polyamide),  ABS (acryloynitrile butadiene styrene)and TPE (thermoplastic elastomer),etc.

Poly-tungsten is the Best Lead Substitute Material

Because it is malleable, poly-tungsten offers increased design flexibility and the opportunity to create molded parts in lieu of multi-part assemblies. Poly-tungsten is more durable than other lead substitutes and offers equal or better radiation-shielding capabilities. The most important point is that poly tungsten is non-toxic and environmentally friendly, so poly tungsten becomes more and more popular nowadays.

Poly Tungsten Tumbler Sinker

With the development of economy, more and more people realize that environment is the most important thing, we can not live well without the bad environment. So people choose poly tungsten tumbler sinker instead of lead sinker because of its good properties of non-toxic and environmentally friendly. Poly tungsten tumbler sinker is sturdier and more flexible than softer leaded alternatives, resulting in a longer service life. We can provide poly tungsten tumbler sinker strictly according to your requirements.

Tungsten Poly Products-Radiation Shielding

Tungsten poly is made of non-toxic & recyclable materials and produces no pollution to the environment.Tungsten poly sheets can be cut or holed with household scissors and formed into shapes with various curved surfaces.
Nowadays, many manufacturers, especially those in medical industry, are trying to replace lead radiation shielding products with tungsten poly products.