PVA 1788S is called 1788 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.
Продукт Функции:
Partially Hydrolyzed.
Нисък вискозитет.
Еквивалентни класове:
088-20
Kuraray PVA-220
Kuraray Mowiol 23-88
CCP BP-17
Sekisui Selvol 523 – Celanese
JVP JP-18
Nichigo GM-14
Продукт Параметър (спецификация)
|
Артикул |
PVA 1788S |
|
Хидролиза (mole%) |
87.0 ~ 89.0 |
|
Вискозитет (mPa.s) |
20.0 ~ 26.0 |
|
Летливи (wt%) |
≤5.0 |
|
Пепел (wt%) |
≤0.5 |
|
Стойност на pH |
5 ~ 7 |
|
Чистота (%) |
≥91.5 |
|
ParticleSize |
Фин прах, 80~200Мрежа |
Съхранение: 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.
Транспорт: По време на транспортирането са необходими чисти автомобили, като трябва да се внимава да не се допускат влага, дъжд и слънцезащита. Боравете с тях внимателно, за да предотвратите повреда на опаковката. Съхранението е много ограничено с временни средства, за да се предотвратят адсорбционни повреди.
ЧЕСТО ЗАДАВАНИ ВЪПРОСИ
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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