Monitoring physicochemical properties of transparent PVC films containing captopril and metal oxide nanoparticles to assess UV blocking

Saleh, Taiseer; Al‐Tikrity, Emaad T. B.; Ahmed, Dina S.; El‐Hiti, Gamal A.; Kariuki, Benson M.; Yaseen, Anaheed A.; Ahmed, Ahmed; Yousif, Emad

doi:10.1007/s10965-022-03097-0

Cited by 4 publications

(5 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The effectiveness of NPS in stabilizing PVC decreases in the order Ni, Cr, Co, Cu, and Ti. A similar observation was made when a combination of Ni NPs and captopril as a PVC additive was compared with Cu and Co (i.e., Ni > Co > Cu NPS) [ 46 ].…”

Section: Resultssupporting

confidence: 59%

“…The Ni NPs led to an improvement in surface roughness by 10.7-fold in comparison to the irradiated pure PVC film. The use of metal oxide NPs in combination with captopril led to an increase in Rq by 5.2–10.3 fold [ 46 ]. Modified PVC that contains benzaldehyde, ethylene diamine, and metal oxide NPs led to improvement in the Rq by 4.8–10.9 fold [ 45 ].…”

Section: Resultsmentioning

confidence: 99%

“…As an example, silver NPs have been found to have antioxidant and antimicrobial activities [ 43 , 44 ]. Recently, metal oxide NPs have been tested as photostabilizers for PVC [ 45 , 46 ]. The results indicated that the damage in the PVC chains due to UV photoirradiation was reduced by the presence of the metal NPs.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Metal Oxide Nanoparticles Containing Clotrimazole to Suppress Photodegradation of Poly(Vinyl Chloride) Thin Films

et al. 2023

Self Cite

View full text Add to dashboard Cite

Pol(vinyl chloride) or PVC has functional properties that enable its use in many industrial applications. It suffers from aging, however, in harsh conditions (e.g., elevated temperature or high humidity levels) if oxygen is present. One way to enhance the photostability of PVC is to blend it with additives. Thus, thin films were made by mixing PVC with clotrimazole, and five metal oxide (titanium, copper, cobalt, chromium, and nickel oxides) additives. The metal oxides and clotrimazole were added at concentrations of 0.1 and 0.5% by weight, respectively. The effect of the metal oxide nanoparticles accompanied by clotrimazole on the photodegradation of PVC was then assessed. The results indicated that the additives have a stabilizing effect and protect PVC against photodegradation significantly. The formation of polymeric fragments of small molecular weight containing carbon-carbon double bonds and carbonyl groups was lower in the blends containing metal oxide nanoparticles and clotrimazole than in unblended PVC. Similarly, the decrease in weight was much less for the films blended with additives. Additionally, surface analysis of the irradiated polymeric films showed significantly lower damage in the materials containing additives. The most effective additive in the stabilization of PVC was nickel oxide nanoparticles. The metal oxides are highly alkaline and act as scavengers for the hydrogen chloride produced during the photodegradation of PVC. They additionally act as peroxide decomposers. In contrast, clotrimazole can absorb harmful radiation and act as an ultraviolet absorber due to its heteroatom and aromatic content. Thus, the use of a combination of metal oxide nanoparticles and clotrimazole led to significant improvement in the resistance of PVC toward photodegradation.

show abstract

Section: Resultssupporting

confidence: 59%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Metal Oxide Nanoparticles Containing Clotrimazole to Suppress Photodegradation of Poly(Vinyl Chloride) Thin Films

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…to make a compatible mixture, and then placed in an ultrasonic mixer for 30 min until completely dissolved, the mixture was poured in glass molds and leave it 48 h to dry at 25 ºC to prepare the films. After drying of the films, and the solvent is completely evaporated, the films were remove from the molds and pasted on papers that have a dimensional 3×3 cm [25]. The films of PVC were prepared with thickness (40 μm), calculated by a digital micrometer, type (2610, Germany).…”

Section: Methods Of Preparation Filmsmentioning

confidence: 99%

Anti-cancer Schiff bases as photostabilizer for poly(vinyl chloride)

Alwan Farhan,

Baqir Ali,

Amer Ibrahim

et al. 2023

Bull. Chem. Soc. Eth.

View full text Add to dashboard Cite

To prevent or reduce the drawback effect and prolong the life of PVC and preserve its composition and efficiency, compounds are incorporated with PVC. In this work, three highly aromatic anti-cancer Schiff base compounds in symbol (C2, C3 and C5) were applied to photostabilize of PVC against photodegradation, by added it to the polymer in the form of Schiff bases, to increase the stability of polymer when irradiated with ultraviolet (UV) light, (λmax = 365 nm) at 30 ºC, with the intensity of the light wavelength at 1920 lux for a long duration. The PVC was blended with Schiff's base in concentration (0.5 %wt.), with thickness films (40 μm) were made from the blended materials. Several methods were used, including infrared spectroscopy, surface examination of irradiated films to know the effect of additives on PVC photostabilization and conductivity of films were measured by LCR meter. The results showed that the additives significantly reduced the photodegradation of PVC. C2 compound as additive, stabilize PVC more than other additives, it can absorb harmful radiation, deactivate hydrogen chloride, and scavenge high-energy species such as peroxides. Several mechanisms of photostabilization for C2 compound have been suggested. Therefore it is acting as stabilizers for PVC. KEY WORDS: PVC, Photostabilizer, UV radiation, AFM, FESEM, LCR-meter Bull. Chem. Soc. Ethiop. 2024, 38(1), 135-146. DOI: https://dx.doi.org/10.4314/bcse.v38i1.11

show abstract

“…On a plate of clean glass, the PVC solution was cast. The films were created via evaporation at 25 °C 20 .…”

Section: Synthesis Of Modified Polymeric Filmsmentioning

confidence: 99%

A Comparative Study of the Photostabilization of Polyvinyl Chloride with Nano and Micro Nickel Oxide

2023

View full text Add to dashboard Cite

NiO nanoparticle synthesis by chemical method and characterized by XRD with crystal size 11.72 nm and grain size 13 nm from FESEM image also NiO micro used ,two NiO as an additive to evaluate the possibility of producing photodegradable polymers, the practical application of solid-phase photocatalytic degradation of polyvinyl chloride (PVC- NiO composite films) was investigated. PVC has a negative impact on the environment since its polymer degrades slowly, yet it has a wide range of industrial applications and the amount used shows no evidence of diminishing use. Thus, a synthesis of modified PVC- NiO micro and nano has been studied with 0, 50, 100, 150, 200, 250, and 300 (hours) as irradiation time and a number of spectroscopic analyses such as FTIR and UV-VIS. Additionally, the effects of adding nanostructures to PVC chains on optical stability testing procedures were examined through indices (ICO, IPO, and IOH), weight loss measurements, UV and viscosity.

show abstract

Monitoring physicochemical properties of transparent PVC films containing captopril and metal oxide nanoparticles to assess UV blocking

Cited by 4 publications

References 47 publications

Metal Oxide Nanoparticles Containing Clotrimazole to Suppress Photodegradation of Poly(Vinyl Chloride) Thin Films

Metal Oxide Nanoparticles Containing Clotrimazole to Suppress Photodegradation of Poly(Vinyl Chloride) Thin Films

Anti-cancer Schiff bases as photostabilizer for poly(vinyl chloride)

A Comparative Study of the Photostabilization of Polyvinyl Chloride with Nano and Micro Nickel Oxide

Contact Info

Product

Resources

About