Research on impact of reducing energy consumption of processing on thermal and mechanical properties of polyacetal composites with glass fibers, by lowering process temperature
Badania wpływu zmniejszenia energochłonności przetwórstwa na właściwości termiczne i mechaniczne kompozytów poliacetalu z włóknem szklanym poprzez obniżenie temperatury procesu
Dariusz Kwiatkowski, Adam Gnatowski, Agnieszka Kijo-Kleczkowska, Henryk Otwinowski
Streszczenie
The production of polyacetal composites is justified by the numerous advantages of the methods of their production,
the possibility of mixing during processing, extended possibilities of their use and operating conditions. Changing
the temperature of the processing entails a change in the thermal and mechanical properties of these materials. Anticipation
of changes in properties due to lower energy consumption of process by lowering the processing temperature plays a big role
in the composition planning as well as in the preparation of polymer composites. The article discusses the results of investigations
on the impact of filler in the form of glass fiber and processing temperature on selected properties of polyacetal composites
with a content of 10 and 30% glass fiber. The tests included mechanical properties and thermal analysis. Mechanical
properties such as tensile strength, hardness and impact resistance were determined. The degree of crystallinity was investigated
by DSC and the melting range of the crystalline phase was determined. The tests were carried out for polyacetal named
Tarnoform and two composites on its matrix, with 10 and 30% glass fiber content. The effect of lowering the mold temperature
on the tested properties of both polyacetal and composites with the addition of glass fiber was determined. Changes
in the tensile strength, hardness and impact strength values of the tested materials for the samples under varying temperature
conditions of the process were observed. In the conducted tests, changes in mechanical properties were registered. for composites
formed at a lower temperature of the mold for both polyacetals and composites with the addition of fiberglass.
The character of the changes in the value of the tested properties is similar for the composites produced with the temperature
of the mold. The influence of mold temperature decrease on the degree of crystallinity of polyacetal was observed, and to
a lesser extent for composites. The effect of lowering the processing temperature on the melting range of the crystalline
phase of the polymer was determined, the narrowing of the crystalline phase melting range in the case of polyacetal was
observed, at reducing of the mold temperature, and small constriction for the composites.
the possibility of mixing during processing, extended possibilities of their use and operating conditions. Changing
the temperature of the processing entails a change in the thermal and mechanical properties of these materials. Anticipation
of changes in properties due to lower energy consumption of process by lowering the processing temperature plays a big role
in the composition planning as well as in the preparation of polymer composites. The article discusses the results of investigations
on the impact of filler in the form of glass fiber and processing temperature on selected properties of polyacetal composites
with a content of 10 and 30% glass fiber. The tests included mechanical properties and thermal analysis. Mechanical
properties such as tensile strength, hardness and impact resistance were determined. The degree of crystallinity was investigated
by DSC and the melting range of the crystalline phase was determined. The tests were carried out for polyacetal named
Tarnoform and two composites on its matrix, with 10 and 30% glass fiber content. The effect of lowering the mold temperature
on the tested properties of both polyacetal and composites with the addition of glass fiber was determined. Changes
in the tensile strength, hardness and impact strength values of the tested materials for the samples under varying temperature
conditions of the process were observed. In the conducted tests, changes in mechanical properties were registered. for composites
formed at a lower temperature of the mold for both polyacetals and composites with the addition of fiberglass.
The character of the changes in the value of the tested properties is similar for the composites produced with the temperature
of the mold. The influence of mold temperature decrease on the degree of crystallinity of polyacetal was observed, and to
a lesser extent for composites. The effect of lowering the processing temperature on the melting range of the crystalline
phase of the polymer was determined, the narrowing of the crystalline phase melting range in the case of polyacetal was
observed, at reducing of the mold temperature, and small constriction for the composites.