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Changsha Beihai Chemical Industrial Co., Ltd

Company Summary:

  • Since 2000
  • 51-75 Employees
  • Turnover 70,000,000.00 USD per year
  • 40% turn over from existing products
  • 13 year(s) of Export Experience
  • Limited Company

Additional Contacts:

www.csbeihai.cn
Export Department
Apple Ou
Phone: +86 - 731 - 84627146/+86 - 18874155620
Fax: +86 - 731 - 84633158

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Company Address:

106 Room A13 Building Dongfang Renjia No1199 Yuanda Rd,Furong Area Changsha,Hunan,China.
ChangSha, HuNan
China, 410126
Web Page Link: http://www.toboc.com/changshabeihaichemicalindustrialcoltd

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Details of Product or Sell Offer
product

Polyvinyl chloride (PVC)

"Polyvinyl chloride (PVC)" is listed under  Chemical Auxiliary AgentCategory

Mechanical propertiesPVC has high hardness and mechanical properties. The mechanical properties enhance with the molecular weight increasing, but decrease with the temperature increasing. The mechanical properties of rigid PVC (uPVC) is very good, the elastic modulus can reach to 1500-3,000 MPa. The soft PVC (Flexible PVC) elastic is 1 point 5-15 MPa. However, elongation at break is up to 200 Percent -450 Percent. PVC friction is ordinary, the static friction factor is 0 point 4-0 point 5, the dynamic friction factor is 0 point 23.Thermal propertiesThe heat stability of PVC is very poor, when the temperature reaches 140 & 176C PVC starts to decompose. Its melting temperature is 160 & 176C. The linear expansion coefficient of the PVC is small and has flame retardancy, the oxidation index is up to 45 or more. Therefore, the addition of a heat stabilizer during the process is necessary in order to ensure the products properties.Electrical propertiesPVC is a polymer with good insulation properties but because of its higher polar nature the electrical insulating property is inferior to non polar polymers such as polyethylene and polypropylene.As the dielectric constant, dielectric loss tangent value and volume resistivity are high, the corona resistance is not very good, it is generally suitable for medium or low voltage and low frequency insulation materials.ApplicationsPVCs relatively low cost, biological and chemical resistance and workability have resulted in it being used for a wide variety of applications. It is used for sewerage pipes and other pipe applications where cost or vulnerability to corrosion limit the use of metal. With the addition of impact modifiers and stabilizers, it has become a popular material for window and door frames. By adding plasticizers, it can become flexible enough to be used in cabling applications as a wire insulator. It has been used in many other applications. PipesRoughly half of the worlds polyvinyl chloride resin manufactured annually is used for producing pipes for municipal and industrial applications.[15] In the water distribution market it accounts for 66 Percent of the market in the US, and in sanitary sewer pipe applications, it accounts for 75 Percent.[16] Its light weight and low cost make it attractive. However, it must be carefully installed and bedded to ensure longitudinal cracking and overbelling does not occur. Additionally, PVC pipes can be fused together using various solvent cements, or heat-fused (butt-fusion process, similar to joining HDPE pipe), creating permanent joints that are virtually impervious to leakage.In February, 2007 the California Building Standards Code was updated to approve the use of chlorinated polyvinyl chloride (CPVC) pipe for use in residential water supply piping systems. CPVC has been a nationally accepted material in the US since 1982 California, however, has permitted only limited use since 2001. The Department of Housing and Community Development prepared and certified an environmental impact statement resulting in a recommendation that the Commission adopt and approve the use of CPVC. The Commissions vote was unanimous and CPVC has been placed in the 2007 California Plumbing Code.In the United States and Canada, PVC pipes account for the largest majority of pipe materials used in buried municipal applications for drinking water distribution and wastewater mains.[17] Buried PVC pipes in both water and sanitary sewer applications that are 4 inches (100& 160mm) in diameter and larger are typically joined by means of a gasket-sealed joint. The most common type of gasket utilized in North America is a metal reinforced elastomer, commonly referred to as a Reiber sealing system.[18]Electric cablesPVC is commonly used as the insulation on electrical cables PVC used for this purpose needs to be plasticized.In a fire, PVC-coated wires can form HCl fumes the chlorine serves to scavenge free radicals and is the source of the materials fire re



Product Detail

MT
1032     USD Per Metric Ton(s)
1     Metric Ton(s)
14   week(s)
120000   Metric Ton(s) Monthly
high hardness, PVC, heat stability
#highhardness, #PVC, #heatstability

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