PVOH KP-08R
Water-soluble polymers are often used as dispersing stabilizers for the suspension polymerization of vinyl chloride monomers (VCMs). In particular, PVOH is a suitable agent optimizing the surface-active performance of a vinyl monomer by selecting appropriate degrees of polymerization and saponification.
The suspension polymerization of VCMs is a technique used to produce PVC with a particle size of 50 to 200 µm. A VCM is suspended in water by means of stirring and use of a dispersing agent, and then polymerized for several hours to achieve PVC. The properties of the resultant PVC powder, including the size and shape of particles and bulk density, vary depending on the particle forming process during the polymerization.
In the particle forming process, the role of PVOH, which governs the properties of PVC powder, is very critical, where 50% to 80% of the properties of PVC powder depend on the surface activity performance of PVOH.
Furthermore, required properties of a dispersing agent constantly change. For instance, the speed of polymerization has been accelerated because of improved heat removal efficiency during the suspension polymerization process. Therefore, the need is mounting for a PVOH capable of satisfying requirements in both productivity and environmental protection, without limiting performance, for example, residual VCM removal.
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Technical Datasheet (English)
Baixar o documentoProcessamento
Encontre informações de processamento específicas para PVOH, além de informações gerais para a família genérica Additive -- Compatibilizer / Adhesion Promoter -- Other Grafted Polymer (e.g. EVA). Inscreva-se ou Faça login para mais informações.
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