stable I.V. Low AA content,high clarity Nice in Color value For Cola and C.S.D.bottle

“WANKAI” Brand 'WK851" PET resin bottle grade is TPA-based polyethylene terephthalic copolymer. It is a high molecular weight polymer giving enhanced properties for reheat blow stage of bottle production.Keeping the similiar properties of WK881, it is characterized by lower energy consumption but higher production rate duiring bottle production. Because of the additive,it looks darker, but the final bottle keeps the clarity as WK881's.The following table provides the parameters that characterize the grade.

ParameterUnitValueLimitsTest method

Intrinsic Viscosity (IV)	dL/g	0.85	±0.02
Acetaldehyde Content	ppm	1	max
Color (L-value)	--	70	min
Color (b-value)	--	1	max
Melting point	°C	243	±2
Moisture Content	%wt	0.4	max
Weight of 100 chips	g	1.55	±0.1

IMPORTANT NOTICE FOR USE IN PROCESSING

DryingDrying is necessary prior to the melt processing to prevent the resin from hydrolysis.Typical drying conditions are an air temperature of 160-175°C, 4-6 hours residence time.

PET Resin Bottle Grade/plastic resin