Kuraraypovaldot

KURARAY POVAL™, EXCEVAL™, ELVANOL™ and MOWIFLEX™ are the polyvinyl alcohol made by Kuraray. Our global production and service network make us your perfect partner for PVOH resins.Kuraray Poval™ is water-soluble, has specific colloidal characteristics, excellent film-forming properties, and high tensile strength. In additi-on, it is elastic and resistant to heat and organic solvents.Find the right product/grade for your specific need by using our PVOH (PVA) product finder! Finding the right product for your needs has never been easier. Just choose your application and our product finder will s

O álcool polivinílico (PVA ou PVOH, do inglês polyvinyl alcohol) é um polímero sintético solúvel em água, amplamente utilizado em diversas indústrias devido às suas propriedades únicas. Sua fórmula química básica pode ser representada por (C2H4O)n(C_2H_4O)_n(C2​H4​O)n​, sendo formado por unidades repetidas de vinil álcool. No entanto, o vinil álcool em si é instável e não pode ser polimerizado diretamente. Assim, o PVA é obtido por meio da hidrólise (ou alcoolise) do acetato de polivinila (PVAc), um processo que remove os grupos acetato e os substitui por grupos hidroxila.O PVA é um polímero

Partially hydrolyzed polyvinyl alcohol (PVA) is a versatile water-soluble polymer that results from the controlled hydrolysis of polyvinyl acetate. Unlike fully hydrolyzed PVA, which has more than 98% of its acetate groups converted to hydroxyl groups, partially hydrolyzed PVA typically has a hydrolysis degree between 85% and 89%. This variation gives it unique properties, making it suitable for specific applications across industries like textiles, adhesives, construction, paper, and pharmaceuticals. One of the defining features of partially hydrolyzed PVA is its balance between water solubi