Nanosilica‐immobilized <scp>UV</scp> absorber: synthesis and photostability of polyolefins

Liu, Peng; Gao, Chong; Han, Chunchun; Tang, Hanying; Wang, Feng; Ding, Yanfen; Zhang, Shimin; Yang, Mingshu

doi:10.1002/pi.4921

Cited by 18 publications

(9 citation statements)

References 20 publications

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“…By incorporating the DOPO‐immobilized nanosilica (5.0 wt%) into PP matrix, the thermo‐oxidative stability of PP was improved and the activation energy of the thermo‐oxidative degradation of PP was evidently enhanced. Liu et al . synthesized a nanosilica‐immobilized UV absorber (SiO 2 ‐APTMS‐UVA) by chemically grafting ortho ‐hydroxybenzoic acid onto fumed nanosilica.…”

Section: Nanosilica‐immobilized Antioxidantsmentioning

confidence: 99%

Synthesis of nanoparticle‐immobilized antioxidants and their antioxidative performances in polymer matrices: a review

Liu

Wang

et al. 2018

Polymer International

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Antioxidants are used to improve the thermo-oxidative stability of polymers during processing and to prolong the service life of polymer materials. Immobilizing antioxidants onto nanoparticles is one of the approaches for reducing their physical losses. Research on the design, synthesis and application of nanoparticle-immobilized antioxidants is reviewed in this article. These kinds of 'nano-antioxidants' reveal good resistance against extraction and show good antioxidative efficiency during long-term thermal aging, and therefore will have great potential in practical use for improving the stability of polymer materials.

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Section: Nanosilica‐immobilized Antioxidantsmentioning

confidence: 99%

Synthesis of nanoparticle‐immobilized antioxidants and their antioxidative performances in polymer matrices: a review

Liu

Wang

et al. 2018

Polymer International

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“…As for titanium dioxide (TiO 2 ) and zinc oxide (ZnO), it was found that a photocatalytic process under sunlight may destroy the structure of binder composites with these NPs [ 18 , 19 , 20 , 21 ]. Triazine derivatives, benzotriazoles, benzophenones, and salicylates are used as organic UV absorbers, nevertheless, their thermal stability due to low molecular weight is weak [ 22 , 23 , 24 ]. However, silica NPs have some advantages such as nontoxic, non-photocatalytic, environmentally friendly, and inorganic UV shielding [ 25 , 26 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Fumed Silica Nanoparticles on Ultraviolet Aging Resistance of Bitumen

Cheraghian

Wistuba

2021

Nanomaterials

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In this study, bitumen modified by fumed silica nanoparticles was characterized through dynamic shear rheometer tests, scanning electron microscopy, and Fourier transform infrared spectroscopy. The fumed silica nanoparticles were used in three different ratios, i.e., 0.1, 0.2 and 0.3 wt.-% of bitumen. Specifically, the modified bitumen characteristics were studied after laboratory aging by analyzing the chemical composition and rheological properties. From the determination of oxidation degree and carbonyl index it was found that the resistance of the modified bitumen to ultraviolet aging was improved with the increasing nanoparticle content. In bitumen modified by fumed silica nanoparticles, the nanoparticles were well dispersed. Moreover, the results illustrated that the bitumen properties were improved, and the improvement effect of 0.1 wt.-% fumed silica nanoparticles was more distinct than the higher concentrations.

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“…In addition, the comparable softness, ductility, and processability to LDPE make PBAT one of the promising candidates for agricultural films . However, PBAT is susceptible to ultraviolet (UV) aging , which is not acceptable for agricultural application .…”

Section: Introductionmentioning

confidence: 99%

A novel nanosilica‐supported ultraviolet absorber for the preparation of robust biodegradable plastic film with high ultraviolet aging resistance

et al. 2019

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A novel type of nanosilica-supported ultraviolet absorber (SiO 2 -N-0) was successfully prepared by chemically grafting 2,4-dihydroxybenzophenone (UV-0) onto the surface of nanosilica (SiO 2 ) with the aid of a coupling agent via a solgel method, which was confirmed by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. SiO 2 -N-0 was then incorporated into poly(butylene adipate-co-terephthalate) (PBAT) to fabricate biodegradable composite film with a casting method. As expected, SiO 2 -N-0 was homogeneously dispersed in PBAT matrix, leading to higher mechanical strength and lower water vapor transmission of PBAT/SiO 2 -N-0 film than those of PBAT/SiO 2 /UV-0 film. More importantly, because of its low migration and volatility, SiO 2 -N-0 endowed PBAT film with excellent aging resistance under ultraviolet radiation than did the corresponding low molecular ultraviolet absorber UV-0. Taken together, these results suggest that thus prepared PBAT/SiO 2 -N-0 composite film may find many applications, especially as biodegradable agricultural mulch film.

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Nanosilica‐immobilized UV absorber: synthesis and photostability of polyolefins

Cited by 18 publications

References 20 publications

Synthesis of nanoparticle‐immobilized antioxidants and their antioxidative performances in polymer matrices: a review

Synthesis of nanoparticle‐immobilized antioxidants and their antioxidative performances in polymer matrices: a review

Effect of Fumed Silica Nanoparticles on Ultraviolet Aging Resistance of Bitumen

A novel nanosilica‐supported ultraviolet absorber for the preparation of robust biodegradable plastic film with high ultraviolet aging resistance

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