PVA 2688S is called 2688 Fine Powder and it used to produce textile sizing materials, coatings,adhesive, and it is widely used for paper processing, emulsifying agents, dispersants and blocking colloids. Besides, it can be employed as membranes, soil modifiers,etc. Mainly used to produce textile sizing materials, coatings,adhesive, acetal derivations, and it is extensively applied to paper processings, emulgents, dispersants and blocking colloids.
Produkt Merkmal:
Teilweise hydrolysiert.
Niedrige Viskosität.
Äquivalente Noten:
CCP BP-26
Sekisui Selvol 540 - Celanses
Produkt Parameter (Spezifikation)
|
Artikel |
PVA 2688S |
|
Hydrolyse (mol%) |
87.0 ~ 89.0 |
|
Viskosität (mPa.s) |
50.0 ~ 58.0 |
|
Flüchtig(wt%) |
≤5.0 |
|
Asche (wt%) |
≤0.5 |
|
pH-Wert |
5 ~ 7 |
|
Reinheit (%) |
≥91.5 |
|
PartikelGröße |
Feines Pulver, 80~200Netz |
Lagerung: Store in a ventilated, cool and dry place, and keep away from fire,power, prevent humid, and avoid sun exposure. Handle with care during transportation to prevent damage to the package.It is strictly forbidden to store it with volatile chemicals to prevent deterioration by adsorption.
Transport: Während des Transports sind saubere Autos erforderlich, und es muss darauf geachtet werden, dass Feuchtigkeit, Regen und Sonnenschutz vermieden werden. Behandeln Sie das Produkt vorsichtig, um Schäden an der Verpackung zu vermeiden. Die Lagerung ist mit temporären Mitteln sehr begrenzt, um Adsorptionsschäden zu vermeiden.
FAQ
Q: Is polyvinyl alcohol soluble?
A: Polyvinyl alcohol powder is water soluble with transparent solution. Most PVA series are used while dissolved in water. Its solubility depends mainly on degrees of polymerization and alcoholysis. At the same temperature, the solubility increases along with reduction of the degree of alcoholysis, and decreases with increase of the viscosity; for the PVA series with the same degree of polymerization, if their degrees of alcoholysis are low, their temperatures get low upon completion of dissolution, and vice versa; for the PVA of the same alcoholysis, if the degrees of polymerization are high, their temperatures get high upon completion of dissolution, and vice versa.
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