- Country of manufactureRussia
Films of low pressure.It is opaque, rather turbid material. If to compare it to PEVD, then it stronger and do not exert impact of temperature below 121 degree on it. It gives the chance of its use at sterilization the ferry. At identical stability to low, to minus 60 degrees, temperatures, stretching coefficients - compression at PENV, above, and here resistance to damages is lower, than at PEVD. And there is one regularity: macromolecules PEND, are linear on the structure. They and oriyentirovprana on a current of a film. It explains a difference that this material in cross section, has much higher stability, than in longitudinal.
Films of PEND have lower, in comparison with PEVD permeability. And here on chemical firmness, considerably they are surpassed. Especially it is noticeable in relation to oils and fats.
Quality of a film to a large extent depends on qualitative characteristics of raw materials from which it is made a film. Besides. Process of plasticization in the material cylinder of an extruder and observance of technology of process exerts noticeable impact on this factor. The main part is assigned to hashing improvement of quality, receiving uniform initial material and permanent volume productivity. Kung Hsing are modified and systematically forms and structure of the plasticizing systems, concerning each material improve.