022 oriental renaissance: innovative, educational, natural and social sciences scientific journal volume 2, issue issn 2181-1784 Impact Factor: 947 asi factor = 7



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ORIENS Volume 2 ISSUE 5-сжатый

Oriental Renaissance: Innovative, 
educational, natural and social sciences 
 
VOLUME 2 | ISSUE 5 
ISSN 2181-1784 
Scientific Journal Impact Factor
 
 SJIF 2022: 5.947 
Advanced Sciences Index Factor 
 ASI Factor = 1.7 
585 
w
www.oriens.uz
May
2022
 
By belonging to the class of compounds, fillers are divided into mineral and organic. 
The mineral group includes such as asbestos, mica, quartz flour, talc, fiberglass and 
others. Among the most famous are wood flour for phenolic resins, carbon black 
(soot) for rubbers [7]. 
When developing plastic formulations, the following questions need to be 
answered: 
• What is the property gain to be achieved?
• What undesirable changes might occur?
• How easy is the fi
ller to handle and how can it affect the process? 
• What is the real cost of the filler?
In most cases, a plastic modified with functional fillers is more expensive than a 
polymer matrix. This is due to the often expensive way of filling; the higher cost of 
stabilizers, the need to use special additives and, finally, the increase in processing 
and logistics costs compared to unfilled polymers. Since the specific gravity of most 
fillers is significantly higher than the specific gravity of polymers, the specific 
volume of the composition decreases, which leads to an increase in costs and the end 
user, who purchases raw materials by weight and sells the finished product of a 
certain volume. The choice of the optimal filler is very important and depends on the 
properties required in the finished product or semi-finished product . 
Table 1.
Filler 
Carbonate 
Са
Talc 
Kaolin 
Wollastonite 
(metasilicate Ca-
white, acicular) 
powder) 
Other 
additives 
amount, % 
66 



19 

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