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Plastic layer can improve plastic membrane barrier property
by：Lisson
2020-11-11
Poor barrier property of plastic with good barrier property of plastic made into layered composite film can improve the barrier property, but also to give full play to the function of each composition, obtain good comprehensive performance and lower cost of plastic film.
There are several commonly used composite membrane method.
( A) Paint dry laminated method
paint dry laminated method has the advantage of base material choice is wide, bond strength is big, but should pay attention to the last will cleanse solvent in binder. About the composite film commonly used coating will be dedicated at the back.
contains or aluminum foil paper layer of thermoplastic composite film production can only use the above two methods.
composite one of the most important purpose is to improve the barrier property, but this is not the only purpose.
( 2) Extrusion lamination compound legal
extrusion laminating complex legal often with cellophane, nylon film or aluminum foil as the basal membrane, such as PE, PP, EVA and ionic polymer melt extrusion press close to close to the base film. Sometimes also can be in the middle of the two kinds of base film clip into the melt extrusion another polymer composite membrane system.
( 3) A total of extrusion method
extrusion method in composite film production is becoming more and more important in the position. In the production of composite film, with a total of extrusion method of material selection and structure design of the composite membrane is very important.
( A) Paint dry laminated method
paint dry laminated method has the advantage of base material choice is wide, bond strength is big, but should pay attention to the last will cleanse solvent in binder. About the composite film commonly used coating will be dedicated at the back.
contains or aluminum foil paper layer of thermoplastic composite film production can only use the above two methods.
composite one of the most important purpose is to improve the barrier property, but this is not the only purpose.
( 2) Extrusion lamination compound legal
extrusion laminating complex legal often with cellophane, nylon film or aluminum foil as the basal membrane, such as PE, PP, EVA and ionic polymer melt extrusion press close to close to the base film. Sometimes also can be in the middle of the two kinds of base film clip into the melt extrusion another polymer composite membrane system.
( 3) A total of extrusion method
extrusion method in composite film production is becoming more and more important in the position. In the production of composite film, with a total of extrusion method of material selection and structure design of the composite membrane is very important.
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