Modification of polyvinylchloride by the silicates on the base of rice husk

Готлиб, Елена; Садыкова, Д Ф; Yamaleeva, Ekaterina; Соколова, Алла

doi:10.1051/e3sconf/202126301001

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…At the same time, a broad but low‐intensity band of stretching vibrations of OH groups was determined in the IR spectrum of the initial RHA 1 , which corresponds to its chemical nature 4 (shown schematically in Figure 9). However, during the sorption of the plasticizer, the number of hydroxyl groups increased.…”

Section: Resultsmentioning

confidence: 93%

“…The introduction of the optimal type of plasticizer makes it possible to reduce the glass transition temperature and improve the deformation‐strength properties and thermal stability 1,2 . In this case, such a problem arises as the migration of the plasticizer from PVC 1,3–6 …”

Section: Introductionmentioning

confidence: 99%

“…1,2 In this case, such a problem arises as the migration of the plasticizer from PVC. 1,[3][4][5][6] Migration of the plasticizer occurs due to poor affinity between the components, namely due to the aggregation of molecular coils of the polymer and the formation of a gel network leading to the displacement of the plasticizer molecules. As a result, the plasticizer migrates from the volume to its surface layer.…”

Section: Introductionmentioning

confidence: 99%

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Influence of rice husk ash and wollastonite on plasticizer migration in polyvinyl chloride system

Sadykova,

Budylin,

Nikulova

et al. 2023

J of Applied Polymer Sci

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The influence of rice hull ash and wollastonite on the migration problem of plasticizer EDOS from polyvinyl chloride (PVC) has been studied. The methods of optical interferometry, IR spectroscopy, viscometry, SEM and EDX were used to study the mutual solubility and diffusion mobility in the PVC‐EDOS system in the presence fillers and without them, as well as the phase structure of plasticized filled systems. It is shown that in a fully compatible PVC‐EDOS system, a diffusion mixing mechanism is observed, and the interdiffusion coefficients increase from 10−8 to 10−6 (cm2/s) with increasing plasticizer concentration. The introduction of a dispersed filler somewhat reduces the interdiffusion coefficients. The sorption of the plasticizer on the surface of the dispersed filler has been established, which leads to a decrease in the migration of EDOS from the composition. It was found that the introduction of wollastonite leads to a smaller increase in viscosity and an improvement in the technological properties of the system. And the introduction of environmentally neutral rice husk ash reduces the migration of the plasticizer and improves the stability of the composition during operation, which also has a positive effect on the environmental friendliness of this system.

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Section: Resultsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of rice husk ash and wollastonite on plasticizer migration in polyvinyl chloride system

Sadykova,

Budylin,

Nikulova

et al. 2023

J of Applied Polymer Sci

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The impact of fillers on the biodegradation of plasticized PVC-materials exposed to soil microorganisms

et al. 2023

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Due to the growing use of polymer materials, in particular in construction sphere, the issue of their recycling at the end of their service life is particularly relevant. Being the base for flooring, plasticized PVC-compositions, are utilized by soil microbial flora, as the plasticizer EDOS has a positive effect on the microbiocenosis of the soil. It was shown that for aqueous extracts of samples of PVC-compositions, there is no toxicity for two test objects - infusoria Paramecium caudatum and crustacean Daphnia magna. Filling plasticized PVC-materials with natural wollastonite Miwoll 10-97 inhibits the processes of soil respiration, and rice husk ash and synthetic wollastonite on its base, contribute to its preservation. At the same time, the use of these fillers reduces the degree of utilization of plasticized PVC-compositions by soil microbial flora, since the plasticizer EDOS is adsorbed on their surface and becomes less accessible for soil microorganisms. This was proved by infrared spectroscopy and occurs due to the formation of hydrogen bonds between EDOS and rice husk ash.

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Epoxy and polyvinylchloride materials with fillers derived from rice waste

Gotlib,

Sokolova,

Zenitova

et al. 2024

E3S Web Conf.

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The article is dedicated to the study of silicate fillers on the base of rice production waste and their perspective application in epoxy and polyvinylchloride composite materials. The authors evaluate the impact of phase and granulometric composition, porosity of fillers, the temperature of their obtaining on modifying effect. The comparative analysis of obtained fillers with industrial Aerosil and fully amorphous silicon dioxide is implemented. The effectiveness of application of rice husk ash burnt at 500°C is proven from technical, economic and environmental aspects.

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Modification of polyvinylchloride by the silicates on the base of rice husk

Cited by 3 publications

References 3 publications

Influence of rice husk ash and wollastonite on plasticizer migration in polyvinyl chloride system

Influence of rice husk ash and wollastonite on plasticizer migration in polyvinyl chloride system

The impact of fillers on the biodegradation of plasticized PVC-materials exposed to soil microorganisms

Epoxy and polyvinylchloride materials with fillers derived from rice waste

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