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2. Polymer stabilizer - Wikipedia

   en.wikipedia.org/wiki/Polymer_stabilizer

   The biggest quantity of stabilizers is used for polyvinyl chloride (PVC), as the production and processing of this type of plastic would not be possible without stabilizing chemicals. [1] Common polymer degradation processes include oxidation , UV-damage , thermal degradation , ozonolysis , combinations thereof such as photo-oxidation , as well ...

3. Stabilizer (chemistry) - Wikipedia

   en.wikipedia.org/wiki/Stabilizer_(chemistry)

   In economic terms the most important product groups on the market for stabilizers are compounds based on calcium (calcium-zinc and organo-calcium), lead, and tin stabilizers as well as liquid and light stabilizers (HALS, benzophenone, benzotriazole). Cadmium-based stabilizers largely vanished in the last years due to health and environmental ...

4. Moongel - Wikipedia

   en.wikipedia.org/wiki/Moongel

   Moongels are made from 53% PVC copolymer resin, 27% Dioctyl Terephthalate, 2.5% Epoxied Soybean Oil, 3% Calcium-Zinc Stabilizers, 7% PVC-based Thixotrope and 7.5% Adipate Plasticizer-based Thixotrope. Gel of this composition is commercially available from WRS SportsMed, a division of WRS Group, Inc. under the UltraSoft™ trademark.

5. Polyvinyl chloride - Wikipedia

   en.wikipedia.org/wiki/Polyvinyl_chloride

   In Europe, particularly Belgium, there has been a commitment to eliminate the use of cadmium (previously used as a part component of heat stabilizers in window profiles) and phase out lead-based heat stabilizers (as used in pipe and profile areas) such as liquid autodiachromate and calcium polyhydrocummate by 2015.

6. Stearic acid - Wikipedia

   en.wikipedia.org/wiki/Stearic_Acid

   The stearate salts of zinc, calcium, cadmium, and lead are used as heat stabilizers for PVC. Stearic acid is used along with castor oil for preparing softeners in textile sizing. They are heated and mixed with caustic potash or caustic soda. Related salts are also commonly used as release agents, e.g. in the production of automobile tires.

7. Waldies - Wikipedia

   en.wikipedia.org/wiki/Waldies

   The company produces red lead, litharge, polyvinyl chloride (PVC) stabilizers and lubricants. [1] Waldies has offices in Rajasthan, New Delhi, West Bengal and manufacturing facilities in West Bengal and Odisha. [6] [7] The company has been praised several times over the years for its role in the development of the industrial chemicals industry ...

8. Suspension polymerization - Wikipedia

   en.wikipedia.org/wiki/Suspension_polymerization

   d is the average particle size, k includes parameters related to the reaction vessel design, D v is the reaction vessel diameter, D s is the diameter of the stirrer, R is the volume ratio of the monomer to the liquid matrix, N is the stirring speed, ν m and ν l are the viscosity of the monomer phase and liquid matrix respectively, ε is the ...

9. Photo-oxidation of polymers - Wikipedia

   en.wikipedia.org/wiki/Photo-oxidation_of_polymers

   PP: polypropylene, PE: polyethylene, PVC: Polyvinyl chloride, PS: Polystyrene, PET: Polyethylene terephthalate. Susceptibility to photo-oxidation varies depending on the chemical structure of the polymer. Some materials have excellent stability, such as fluoropolymers, polyimides, silicones and certain acrylate polymers.