ABSTRACT
Abstract ................................................................................................. 255 15.1 Introduction ................................................................................ 256 15.2 Experimental Procedure ............................................................. 257 15.3 Results and Discussion .............................................................. 257 15.4 Conclusion ................................................................................. 264 Keywords .............................................................................................. 265 References ............................................................................................. 265
ABSTRACT
The individual contribution of stabilizers and fillers into the increase of thermal stability of a polymer-matrix of composite materials at their joint presence in the composite is estimated in this paper. The increase of thermal stability of polypropylene composites in the process of pre-saturation
of the surface of fillers by thermal stabilizers compared to their individual introduction into the polymer is determined. A method of saturation of the surface of fillers by stabilizers is proposed. The mechanism of a prolonged and direct action of stabilizers desorbing from the surface of the filler is explained. It leads to the increase of 10-40% of the thermal stability of stabilized filled polypropylene compositions obtained by the proposed method in comparison with the traditional one. It simultaneously reduces up to 1.25 times the amount of used stabilizers.
