Polymer Mixtures Based on Polyvinyl Chloride for the Production of Construction Materials

Хузиахметова, К Р; Абдрахманова, Л А; Nizamov, Rashit

doi:10.1007/978-3-030-80103-8_2

Cited by 5 publications

(2 citation statements)

References 29 publications

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“…На стадии переработки ПВХ подвергается термической деструкции, в связи с чем могут ухудшаться механические свойства материалов [4]. Введение в состав ПВХ композиций акриловых технологических добавок позволяет обеспечить рост требований к эксплуатацион-ным и технологическим свойствам таких материалов [5][6][7].…”

Section: Introductionunclassified

Features of PVC/ABS compositions filling

Хузиахметова

Абдрахманова

Islamov

2022

Vestn. Voronež. gos. univ. inž. tehnol.

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The work is devoted to the filling of PVC (polyvinyl chloride) compositions modified with ABS (acrylonitrile-butadiene styrene) in a wide concentration range, intended for the production of profiles and moldings of various functional purposes, with short-fiber basalt fiber. Powdered samples were made by extrusion (in the form of flat profiles) and by thermoplasticizing on rolls (in the form of films). Introduction of 10-40 phr ABS in PVC formulation makes it easier to recycle the composition. Similar situation is observed when these compositions are filled with basalt fiber, which leads to insignificant decrease of MFR (melt flow index) and thermal stability, which in general does not reflect negatively on melt flow conditions, at the same time extrudate swelling index decreases by 10-15%, which indicates possibility to provide products with more precise geometric dimensions. The change in the supramolecular structure was evaluated by thermomechanical tests and by energy dispersive analysis using electron microscopy data. Thermomechanical analysis showed that the presence of large doses of ABS has a positive effect on the technological properties, leading to an earlier development of highly elastic deformations and a decrease in the yield point of the compositions. Basalt fiber contributes to an insignificant decrease in the value of high elastic deformations and an increase in the density index of meshing knots. Energy dispersion analysis has shown that introduction of basalt fiber leads to formation of homogeneous structure of PVC at lower concentrations of ABS in the composition, influencing on increase of melt flowability and thermal stability. Improved technological properties of PVC compositions filled with short-fiber basalt fiber, modified with different concentrations of ABS, allow to recommend them for production of a wide range of profile and molded products.

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Section: Introductionunclassified

Features of PVC/ABS compositions filling

Хузиахметова

Абдрахманова

Islamov

2022

Vestn. Voronež. gos. univ. inž. tehnol.

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“…[24,25], not considering the production of products for the construction industry. Since PVC is the main "construction" polymer, PVC-based mixtures modified by ABS can be recommended for the production of construction products for various functional purposes [26].…”

Section: Introductionmentioning

confidence: 99%

Influence of fiber filler on the structure and properties of polyvinyl chloride / acrylonitrile-butadiene-styrene blends

Хузиахметова

Абдрахманова

Nizamov

et al. 2021

JAMT

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The paper deals with filling polyvinyl chloride (PVC) compositions modified with acrylonitrile-butadiene-styrene (ABS) in a wide concentration range (per hundredth of PVC resin (phr) 10–20 phr ABS) with short-fiber basalt fiber, intended for production of profile mounded products of various functional purposes. The introduction of ABS into PVC compositions makes it easier to process the material, and improves the impact toughness, which for rigid PVC products is an important factor since it expands the areas of their application. However, as a rule, polymer-polymer blends are characterized by low mechanical properties under compression, tension and bending, resulting from the formation of two-phase morphology, which is often heterogeneous. To increase stiffness and strength, 7 phr of short-fiber basalt fiber was introduced into their composition. Experimental samples were made by extrusion in the form of flat profiles. Filling with short-fiber basalt fiber resulted in an increase in the bending strength of PVC specimens over the entire concentration range with an optimum in the region of 10–20 phr ABS, as compared to unfilled blended polymer compositions. The method of energy dispersion analysis established that, depending on the ABS content in the mixture, the interaction of the polymer (PVC) with the filler (fiber) is observed either at the polymer-filler boundary or through the boundary layer of the elastomer.

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