lldpestretch film and stretch film and pallet stretch film is same

Stretch film ( Linear Low Density Polyethylene ), English abbreviate is LLDPE. Linear low density polyethylene in the structure is different from the general low density

polyethylene, because stretch film does not exist long chain.lldpe stretch film linearity depends on the LLDPE and LDPE in different production process. stretch film LLDPE is

usually at a lower temperature and pressure, from ethylene and advanced a olefins such as 1-butene, 1-hexene or octene copolymerization and generation. The copolymerization

process generated stretch film LLDPE polymer having than general LDPE more narrow molecular weight distribution, while stretch film has a linear structure which has different

rheological properties. Stretch film ( LLDPE ), ethylene and a few senior alpha olefins ( such as butene - 1, 1 hexene, octene - 1, four - 1 methyl pentene etc) under the action

of catalyst, the high or low pressure polymerization from a copolymer, stretch film density in 0.915 ~ 0.940 g / cubic centimeters. But according to ASTM D-1248-84, 0.926 ~

0.940 g / cm3 density range of medium density polyethylene ( MDPE ). A new generation of stretch film LLDPE its density to expand to the plastic body ( 0.890 ~ 0.915 g / cm3 )

and elastomer ( < 0.890 g / cm3 ). But the United States Plastics Industry Association ( SPI ) and the United States Plastic Industry Council ( APC ) will only stretch film

LLDPE to expand the scope of plastic body, not including an elastic body. The 80's of last century, Union Carbide and Dow Chemical company its early sales of the plastic body

and an elastic body called the very low density polyethylene ( VLDPE ) and low density polyethylene ( ULDPE ) resin.

Usually, the pallet stretch film resin density and melt index to characterize the. Stretch film density by polymer chain copolymerization monomer concentration determined.

Copolymerization monomer concentration determines the lldpe stretch film polymer in the short branch quantity. Short branched chain length depends on the comonomer type.

Copolymerization monomer concentration is higher, the lower the density of resin. In addition, melt index is the average molecular weight of resin, mainly by the reaction

temperature ( solution ) and joined the chain transfer agent ( gas chromatographic method ) to decide. The average molecular weight and molecular weight distribution of

independent, the latter is mainly affected by the type of catalyst effect.

stretch film LLDPE in the nineteen seventies by Union Carbide industrialization, it represents the polyethylene catalyst and process technology of major change, make the

polyethylene product range expanded significantly. lldpe Stretch film coordination catalyst instead of a free radical initiator, and lower the cost of the low pressure gas phase

polymerization to replace the high cost of high pressure reactor, stretch film in a relatively short period of time, with its excellent performance and low cost, in many areas

has replaced the LDPE

pallet Stretch film ( Linear Low Density Polyethylene ), English abbreviate is LLDPE. Linear low density polyethylene in the structure is different from the general low density

polyethylene, because stretch film does not exist long chain. stretch film LLDPE linearity depends on the LLDPE and LDPE in different production process. stretch film LLDPE is

usually at a lower temperature and pressure, from ethylene and advanced a olefins such as 1-butene, 1-hexene or octene copolymerization and generation. The copolymerization

process generated stretch film LLDPE polymer having than general LDPE more narrow molecular weight distribution, while stretch film has a linear structure which has different

rheological properties. Stretch film ( LLDPE ), ethylene and a few senior alpha olefins ( such as butene - 1, 1 hexene, octene - 1, four - 1 methyl pentene etc) under the action

of catalyst, the high or low pressure polymerization from a copolymer, stretch film density in 0.915 ~ 0.940 g / cubic centimeters. But according to ASTM D-1248-84, 0.926 ~

0.940 g / cm3 density range of medium density polyethylene ( MDPE ). A new generation of stretch film LLDPE its density to expand to the plastic body ( 0.890 ~ 0.915 g / cm3 )

and elastomer ( < 0.890 g / cm3 ). But the United States Plastics Industry Association ( SPI ) and the United States Plastic Industry Council ( APC ) will only stretch film

LLDPE to expand the scope of plastic body, not including an elastic body. The 80's of last century, Union Carbide and Dow Chemical company its early sales of the plastic body

and an elastic body called the very low density polyethylene ( VLDPE ) and low density polyethylene ( ULDPE ) resin.

Usually, the stretch film LLDPE resin density and melt index to characterize the. Stretch film density by polymer chain copolymerization monomer concentration determined.

Copolymerization monomer concentration determines the stretch film polymer in the short branch quantity. Short branched chain length depends on the comonomer type.

Copolymerization monomer concentration is higher, the lower the density of resin. In addition, melt index is the average molecular weight of resin, mainly by the reaction

temperature ( solution ) and joined the chain transfer agent ( gas chromatographic method ) to decide. The average molecular weight and molecular weight distribution of

independent, the latter is mainly affected by the type of catalyst effect.

pallet stretch film  in the nineteen seventies by Union Carbide industrialization, it represents the polyethylene catalyst and process technology of major change, make the

polyethylene product range expanded significantly. Stretch film LLDPE coordination catalyst instead of a free radical initiator, and lower the cost of the low pressure gas phase

polymerization to replace the high cost of high pressure reactor, stretch film in a relatively short period of time, with its excellent performance and low cost, in many areas

has replaced the LDPE