myالوثائق الفنية
PW 60 is a concentrate of high molecular weight Polyisobutylene tackifier in Linear Low Density Polyethylene. It is used as a cling agent to make stretchwrap films from LLDPE or LDPE.
تفاصيل
pallet wrap
silage wrap
food wrap
Store in cool place ( less than 30°C ) out of direct sunlight and not under heavy loads.
It can be used in both blown or cast film process.
Polymers used with PW60 must not contain any slip or antiblock additives or have a density higher than 0.923 as this will prevent the migration of the cling additive.
Migration time for good cling properties is 24-72 hours.
For monolayer blown films 8 % PW60 by weight should be added to LLDPE ( or resin mix). For monolayer Cast films 3 and 4 % PW60. On multilayer film lines, PW60 is often added to the skin layers only. Addition rate depends on which layer is used and the layer thickness.
Polyisobutylene and Polyethylene are allowed by the FDA for use in contact with food ( 21 CFR 177.1430 and 21
CFR 177.1520) and also meets the requirements of EC Directive 90/128/EEC and EC Directive 94/62/EC.
معلومات تقنية
| كمية | قدر | وحدة | التعلیق |
|---|---|---|---|
| خصائص المظهر | |||
| Appearance | Opaque | ||
| Physical state | |||
| الخصائص الفيزيائية | |||
| Specific Gravity | 0.912 | MO13-700;Polytechs internal method | |
| Density | 0.50 | g/ml | MO28-700;Polytechs internal method |
| الخواص الكيميائية | |||
| Shelf Life | >9 | month | |