Research of the mechanisms of penetration of toxic chemicals through a multilayer composite sorption-active material

The mechanism of penetration of liquid and vapors of a simulator of toxic chemicals through samples of multilayer sorptionactive materials obtained by the method of double-sided duplication, differing in different structure and composition, has been determined.The optimal structure of a multilayer composite sorption-active material has been selected for the manufacture of personal protective equipment for the skin of a filtering type, which provides high hygienic and protective properties as close as possible to materials of an insulating type, as well as a technology for its production.

Structure of N-Layer Film Obtained by Developed Blow Molding Process

Aim of the work was obtaining of the composite in form of n-layer polymer film and investigation of the structure. Manufacturing of the film combine the advantages of individual layers in one production process to achieve multilayer composite. In the experiment LDPE was used as main material. Processing of material was done using blow molding process and final product was obtained if the form of thin film. Conventional blown film line contains one extruder, die head, cooling ring and calibration basket, collapsing frame and winding rolls. To develop structure unique blow film line has been used. Two another extruder were joined to existing one transferring material simultaneously to the die head where 3 materials were joined together to combine 3-layered film. This process gives possibility to design final product and control the structure in many various combinations.