Foam Blowing Agents Manufacturer Supplier in Visakhapatnam India

Vizag chemical is a Foam Blowing Agents Manufacturer Supplier in Visakhapatnam India. We are supplied into various industrial markets including Household, Institutional Cleaning, Personal Care, and Industrial sectors including Oil fields, Agriculture, Lubricants, Marine Industry, Metal Working chemical industry, and Coatings markets.

 
A blowing agent is a substance that is capable of producing a cellular structure via a foaming process in a variety of materials that undergo hardening or phase transition, such as polymers, plastics, and metals. They are typically applied when the blown material is in a liquid stage. The cellular structure in a matrix reduces density, increasing thermal and acoustic insulation while increasing relative stiffness of the original polymer.

Foaming agents are substances that have the ability to create cellular structures through the foaming process and produce gases when making sponge products. It can be exothermic or endothermic. They are widely used as additives in the polymer foam industry. It reduces the density of the foam, increases its relative toughness, and improves its thermal insulation ability. The demand is very high in the aerospace, building, and construction, and automotive industries and blowing agents are additives commonly used in the polymer foam industry as part of the production process to impart certain properties to the polymer foam. The importance of foaming agents is that there is a growing demand for the polymer foam business as it essentially produces low-cost, environmentally friendly foam products.

Chemical blowing agents include isocyanate and water for polyurethane, azodicarbonamide for vinyl, hydrazine and other nitrogen-based materials for thermoplastic and elastomeric foams, and sodium bicarbonate for thermoplastic foams. Gaseous products and other byproducts are formed by a chemical reaction of the chemical blowing agent, promoted by the heat of the foam production process or a reacting polymer's exothermic heat. 

Since the blowing reaction occurs forming low molecular weight compounds acting as the blowing gas, additional exothermic heat is also released. Powdered titanium hydride is used as a foaming agent in the production of metal foams, as it decomposes to form hydrogen gas and titanium at elevated temperatures.

 Zirconium(II) hydride is used for the same purpose. Once formed the low molecular weight compounds will never revert to the original blowing agent; the reaction is irreversible.

Mixed physical/chemical blowing agents are used to produce flexible PU foams with very low densities. Here both the chemical and physical blowing are used in tandem to balance each other out with respect to thermal energy released and absorbed, minimizing temperature rise. Otherwise excessive exothermic heat because of the high loading of a physical blowing agent can cause thermal degradation of a developing thermoset or polyurethane material. For instance, to avoid this in polyurethane systems isocyanate and water (which react to form carbon dioxide) are used in combination with liquid carbon dioxide (which boils to give gaseous form) in the production of very-low-density flexible PU foams for mattresses.

Foam Type 

Polystyrene Foam
Polypropylene Foam
Polyurethane Foam
Phenolic Foam
Polyethylene Foam
Others

Application Outlook

Automotive
Appliances
Building and Construction
Packaging
Bedding & Furniture
Others

We are trying our best to supply every chemical you may wish to buy. However, if there is something you can’t find, feel free to contact us and we will find just what you are looking for and offer you a competitive price. For more information or to request a particular product, call customer services or Given website Email address.
vizagchemical@gmail.com