Fine Particle grades PVA

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Fine Particle Grades(S-Grade)
Item	Mesh size	Viscosity (mpa.s)	Alcoholysis (mol)	Volatile(%)	Sodium Acetate (%)	Ash(%)	PH
04-88 S80	80	3.0-4.5	86.0-90.0	7.0	2.5	0.7	5-7
17-99 S120	120	20.0-26.0	98.0-100.0	7.0	2.5	0.7	5-7
17-99 S80	80	20.0-26.0	98.0-100.0	7.0	2.5	0.7	5-7
17-99 S50	50	20.0-26.0	98.0-100.0	7.0	2.5	0.7	5-7
05-88 S80	80	4.0-6.0	86.0-90.0	7.0	2.5	0.7	5-7
17-80 S80	80	18.0-24.0	86.0-90.0	7.0	2.5	0.7	5-7
20-88 S80	80	28.0-40.0	86.0-90.0	7.0	2.5	3.0	5-7
24-88 S80	80	40.0-55.0	86.0-90.0	7.0	2.5	0.7	5-7

Add water at room temperature in the dissolving tank.

Start the agitator, slowly add calculated amount of PVA into the tank.

Keep PVA swelling in the water at room temperature for about 30min, and then raise the temperature of the PVA aqueous solution, when the temperature reaches 90-95℃, keep the temperature for 1-2hours.

PVA can completely dissolve.

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Fine Particle grades PVA

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