Innovative oligomeric poly(vinyl chloride) plasticizers for specialized applications

Lewandowski, Marek; Piszczek, Kazimierz; Pieńkowska, Marta; Lewandowski, Krzysztof

doi:10.14314/polimery.2020.7.7

Cited by 4 publications

(7 citation statements)

References 18 publications

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“…Poly (vinyl chloride) is one of the most processed thermoplastics. In industrial practice, this polymer is often subject to the modification of its properties, e.g., by using plasticizers, process agents, and various fillers, including waste fillers [ 33 , 34 ]. It is essential to obtain materials with improved thermal stability [ 35 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

Waste Eggshells as a Natural Filler for the Poly(Vinyl Chloride) Composites

et al. 2022

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The paper presents the characteristics of unplasticized PVC composites modified with biofiller obtained from the waste eggshells of hen eggs. The composites obtained by extrusion contained from 10 phr to 40 phr of biofiller. The filler was characterized using the SEM, TG, and sieve analysis methods. The influence of the filler on the processing properties was determined using plastographometric and MFR tests. Fundamental analysis of mechanical properties was also performed, i.e., Charpy impact strength and determination of tensile properties. The mechanical properties were supported with dynamical mechanical thermal analysis, time of thermal stability, and thermogravimetric analysis. Structure analysis was also performed using SEM and X-ray microcomputed tomography (micro-CT). The processing properties of the tested composites do not give grounds for disqualifying such material from traditional processing PVC mixtures. Notably, the biofiller significantly improves thermal stability. Ground eggshells (ES) work as scavengers for the Cl radicals released in the first stage, which delays the PVC chain’s decay. Additionally, a significant increase in the value of the modulus of elasticity and softening point (VST) of the composites concerning PVC was found. Ground hen eggshells can be used as an effective filler for PVC composites.

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Section: Introductionmentioning

confidence: 99%

Waste Eggshells as a Natural Filler for the Poly(Vinyl Chloride) Composites

et al. 2022

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“…Plastograms are characteristic of PVC with a large share of plasticizer. Fusion takes place immediately after loading the plastographometer chamber [ 6 , 47 , 48 ]. The addition of CO significantly changes the processing properties of PVC blends.…”

Section: Resultsmentioning

confidence: 99%

“…Along with the change and thinning of the viscosity, the heating effect of the material decreases as a result of reduced energy dissipation from the internal friction of the material [ 49 , 50 ]. Such results are characteristic of PVC plasticizing additives [ 6 ].…”

Section: Resultsmentioning

confidence: 99%

“…This is evidenced by a decrease in both E t and hardness values. This is characteristic of materials modified with plasticising additives [ 6 , 28 ].…”

Section: Resultsmentioning

confidence: 99%

“…Due to the high biocompatibility and hemocompatibility of PVC [ 3 ], this polymer is the most widely used plastic in healthcare, accounting for approximately 25% of all medical-plastic compounds. A common way of modifying PVC is through the use of plasticisers [ 4 , 5 , 6 ], resulting in materials with a broad range of flexibility and transparency and a reduced processing temperature. Plasticised PVC grades are used for the production of hoses and cable insulation, liners, and all kinds of films, e.g., for packaging and blood bags.…”

Section: Introductionmentioning

confidence: 99%

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Modification of Poly(vinyl chloride) with Bio-Based Cassia Oil to Improve Thermo-Mechanical and Antimicrobial Properties

et al. 2023

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The purpose of this study was to modify plasticised PVC to obtain a material with antimicrobial properties and selected mechanical properties. Natural cassia oil (CO) was used to modify plasticised PVC materials. The modified material was produced by extrusion. The introduced modifier had a maximum concentration of 20 phr. Rheological and mechanical properties were evaluated, and the glass transition temperature was determined. The antioxidant and antimicrobial activity of the agar diffusion method was investigated by analysing the growth inhibition zones against Enterococcus faecalis and Listeria monocytogenes. A favourable effect of the cassia oil content on the increase in antioxidant activity of the developed polymeric materials was found with an increase in the modifier content and the duration of action (30 days). The largest growth restriction zones were observed for L. monocytogenes, i.e., they showed the highest sensitivity to the modified material. The simultaneous decrease in modulus of elasticity, increase in elongation at break, and decrease in Tg indicate that the modifier has a plasticising effect on PVC. The developed material may find application as an active and/or functional material, especially as an emitter of antimicrobial agents, in the packaging used to store minimally processed food.

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Mechanical and Processing Properties of Plasticised PVC/Wood Composites

Lewandowski,

Altmajer,

Borkowska

et al. 2024

Polymers

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The paper presents the results of testing the properties of wood–polymer composites (WPC) based on plasticised poly(vinyl chloride) (PVC-P). Materials with variable contents of wood filler (Arbocel C 320) or plasticiser (di-isononyl phthalate) were produced and then analysed. The share of wood flour in the material was up to 50 phr, and the plasticiser content was up to 40 phr. Functional properties, such as tensile properties, mechanical properties at variable temperature (DMTA), and water absorption, as well as processing properties such as rheological properties and analysis of the fusion process, were analysed. The influences of wood flour and plasticiser on the composites’ properties in the solid and melted state were found. For example, with 40 phr of plasticiser, increasing the filler share from 0 phr to 50 phr resulted in an increased tensile modulus from 18 MPa to 274 MPa and viscosity at a share rate of 20 s−1, from 721 Pa·s to 1581 Pa·s. However, increasing the share of plasticiser from 20 phr to 40 phr with 30 phr of filler reduces the value of these properties from 1760 MPa to 112 MPa and from 2768 Pa·s to 1151 Pa·s, respectively. It was also found that increasing the share of wood flour in the composite noticeably reduces the effectiveness of the plasticiser.

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Innovative oligomeric poly(vinyl chloride) plasticizers for specialized applications

Cited by 4 publications

References 18 publications

Waste Eggshells as a Natural Filler for the Poly(Vinyl Chloride) Composites

Waste Eggshells as a Natural Filler for the Poly(Vinyl Chloride) Composites

Modification of Poly(vinyl chloride) with Bio-Based Cassia Oil to Improve Thermo-Mechanical and Antimicrobial Properties

Mechanical and Processing Properties of Plasticised PVC/Wood Composites

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