PROVIDING OF INCREASED WEAR RESISTANCE TO FABRICS FOR PROTECTIVE CLOTHING

Abstract

The purpose of the work is to increase the wear resistance of textile materials by forming composite polymer films on their surfaces.
Methodology. The problem was solved by the use of a mixture of polymers and due to their ability to formulate composite polymer systems that combine the properties of individual polymers and exhibit new ones. One of them was used in the form of aqueous dispersion of the finished polymer of urethane type, and the  second  one  was  synthesized  from  pre-condensates  of  thermosetting  resins  (PTSR)  in  the  process  of finishing, namely, at the stage of heat treatment of the fabric after impregnation and drying, by providing conditions for the course of the condensation reaction. The evaluation of the produced polymer system have been carried out on the basis of the quality  score  of  the  fabric  and  the  results  of  the  study  of  free  polymer  films  formed  from  a  mixture  of polymers  in  the  technological  conditions  of  fabric  finishing.  It  has  been  determined  that  strength  of  free polyurethane  film  to  the  action  of  bursting  tension  and  film’s  adhesion  to  cotton  fabrics  increase  in  the presence  of  pre-condensates  of  thermosetting  resins.  The  conducted  spectrophotometric  and  optical researches of polyurethane films formed during the addition of pre-condensates of thermosetting resins to polyurethane have shown that the polymer film can be considered as a two-phase disperse system. It has been established that the formation of a composite type polymer film on the surface of fabric provides the increasing of it’s quality.  Originality  consists  in  the  fact  that  the  polymer  film  formed  during  the  processing  of  fabric  by composition  based  on  polyurethane  and  pre-condensates  of  thermosetting  resins  is  considered  as  a  two-phase disperse system. Practical value lies in the fact that textile material with higher quality indicators has been obtained,
conditions have been created to expand the fields of their application.