EFFECT OF SILICATE-CONTAINING FILLERS ON THE PROCESSABILITY AND PROPERTIES OF POLYVINYLIDENE FLUORIDE-BASED POLYMER COMPOSITIONS
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Ufimskiy universitet nauki i tehnologiy
2.
Ufimskiy universitet nauki i tehnologiy
3.
Ufimskiy universitet nauki i tehnologiy
Type:
Article
Pages:
from 49
to 53
Status:
Published
Received:
27.01.2026
Accepted:
28.01.2026
Published:
28.01.2026
Language:
Russian
Keywords:
POLYVINYLIDENE FLUORIDE, PROCESSABILITY, MELT FLOW INDEX, RHEOLOGICAL CHARACTERISTICS
Abstract:
Polyvinylidene fluoride (PVDF) is an affordable, heat-resistant thermoplastic suitable for use as a base material in the creation of polymer composites for heating and hot water pipelines. It is used in applications requiring resistance to solvents, acids, and hydrocarbons, as well as high purity. Furthermore, PVDF boasts high chemical resistance and is compatible with other thermoplastic materials. This article discusses the modification of PVDF by introducing reinforcing inorganic components, such as fiberglass and aluminosilicate microspheres, to improve its operational and process properties. The aim of the study was to improve the physical, mechanical, and thermal properties of PVDF. The polymer composite components were combined at the Plastograh laboratory station, and injection molding was used to prepare samples for further research. It was shown that PVDF filling increases rigidity and strength, reduces the coefficient of thermal expansion, and increases the softening point. However, increasing the filler content reduces the material's processability, as evidenced by a decrease in the melt flow rate. It has been established that homogeneous mixing of components with a fairly uniform distribution of reinforcing additives in the volume of material is achieved under the following combining conditions: temperature in the plastograph chamber is 200°C, rotor speed is not less than 30 rpm, mixing time is 15 min, load is 200 N, the content of crushed glass fiber or aluminosilicate microspheres is not more than 5% mas. In terms of processability, extrusion capabilities, and its physicochemical, physicomechanical, and thermal properties, polyvinylidene fluoride is a promising material for the manufacture of heating network pipelines.
Polyvinylidene fluoride (PVDF) is an affordable, heat-resistant thermoplastic suitable for use as a base material in the creation of polymer composites for heating and hot water pipelines. It is used in applications requiring resistance to solvents, acids, and hydrocarbons, as well as high purity. Furthermore, PVDF boasts high chemical resistance and is compatible with other thermoplastic materials. This article discusses the modification of PVDF by introducing reinforcing inorganic components, such as fiberglass and aluminosilicate microspheres, to improve its operational and process properties. The aim of the study was to improve the physical, mechanical, and thermal properties of PVDF. The polymer composite components were combined at the Plastograh laboratory station, and injection molding was used to prepare samples for further research. It was shown that PVDF filling increases rigidity and strength, reduces the coefficient of thermal expansion, and increases the softening point. However, increasing the filler content reduces the material's processability, as evidenced by a decrease in the melt flow rate. It has been established that homogeneous mixing of components with a fairly uniform distribution of reinforcing additives in the volume of material is achieved under the following combining conditions: temperature in the plastograph chamber is 200°C, rotor speed is not less than 30 rpm, mixing time is 15 min, load is 200 N, the content of crushed glass fiber or aluminosilicate microspheres is not more than 5% mas. In terms of processability, extrusion capabilities, and its physicochemical, physicomechanical, and thermal properties, polyvinylidene fluoride is a promising material for the manufacture of heating network pipelines.
Keywords:
POLYVINYLIDENE FLUORIDE, PROCESSABILITY, MELT FLOW INDEX, RHEOLOGICAL CHARACTERISTICS
POLYVINYLIDENE FLUORIDE, PROCESSABILITY, MELT FLOW INDEX, RHEOLOGICAL CHARACTERISTICS
