The Role of Organomodified Different<scp>LDHs</scp>on Recycled Poly(ethylene terephthalate) Nanocomposites

Tsai, Tsung‐Yen; Bunekar, Naveen; Wu, Ti-Chia

doi:10.1002/jccs.201600850

Cited by 9 publications

(6 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The peak of ZnAl‐LDH at 1366 cm −1 is attributed to the CO 3 2− , which shows the existence of CO 3 2− in the interlayer . Also, the peaks at 783 cm −1 and 545 cm −1 are attributed to ZnO and OAlO, respectively . These peaks evidently confirm the synthesis of ZnAl‐CO 3 ‐LDH.…”

Section: Resultssupporting

confidence: 52%

Bioinspired Design of LDH‐Based Mobile Building Materials with Enhanced Mechanical and Ultraviolet‐Shielding Performance

Yang

Zhang

et al. 2019

Macro Materials & Eng

View full text Add to dashboard Cite

Glass fiber reinforced polytetrafluoroethylene composites (PTFE/GF composites) with the excellent performance have been given considerable attention due to their increasing applications in large architecture areas such as stadiums, amusement parks, parking lots, etc. However, the brittleness of glass fiber can hinder the performance of PTFE/GF composites. The PTFE/MLDH (modified ZnAl‐layered double hydroxide)/GF composites inspired by layer‐layer structure are prepared via the multi‐layered dipping method, which consists of GF acting as a reinforcement, PTFE acting as matrix, and MLDH acting as the layer‐layer structure. The results of study show that the high strength and surperflexibility of PTFE/MLDH/GF composites are higher than pure PTFE/GF composites. Especially, when the PTFE/MLDH/GF composites contain 1.6 wt% MLDH, the folding endurance reaches up to 39 035 times, the tensile strength reaches up to 163.57 MPa, and strain reaches up to 8.33%. More significantly, the strength and surperflexibility are illustrated by a mechanism model and it is used to further broaden the application of PTFE/GF composites in mobile building materials. Moreover, it is discovered that the PTFE/MLDH/GF composites have unique translucent performance and excellent ultraviolet‐shielding properties in this study, which further broaden its range of applications.

show abstract

Section: Resultssupporting

confidence: 52%

Bioinspired Design of LDH‐Based Mobile Building Materials with Enhanced Mechanical and Ultraviolet‐Shielding Performance

Yang

Zhang

et al. 2019

Macro Materials & Eng

View full text Add to dashboard Cite

show abstract

“…To achieve the result of using increasing fractions of rPET without adding virgin material, it is mandatory to increase the mechanical properties of the polymer with the incorporation of low cost, commercially available nanoparticles/nanofillers [4]. There are many examples available in the literature dealing with the selection of unmodified or chemically modified layered nanoclays [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical and Morphological Properties of Poly(ethylene terephthalate)/Anhydrous Calcium Terephthalate Nanocomposites

et al. 2020

View full text Add to dashboard Cite

Calcium terephthalate anhydrous salts (CATAS), synthetized by reaction of terephthalic acid with metal (Ca) oxide were incorporated at different weight contents (0–30 wt. %) in recycled Poly(ethylene terephthalate) (rPET) by melt processing. Their structure, morphology, thermal and mechanical properties (tensile and flexural behavior) were investigated. Results of tensile strength of the different formulations showed that when the CATAS content increased from 0.1 to 0.4 wt. %, tangible changes were observed (variation of tensile strength from 65.5 to 69.4 MPa, increasing value for E from 2887 up to 3131 MPa, respectively for neat rPET and rPET_0.4CATAS). A threshold weight amount (0.4 wt. %) of CATAS was also found, by formation at low loading, of a rigid amorphous fraction at the rPET/CATAS interface, due to the aromatic interactions (π−π conjugation) between the matrix and the filler. Above the threshold, a restriction of rPET/CATAS molecular chains mobility was detected, due to the formation of hybrid mechanical percolation networks. Additionally, enhanced thermal stability of CATAS filled rPET was registered at high content (Tmax shift from 426 to 441 °C, respectively, for rPET and rPET_30CATAS), essentially due to chemical compatibility between terephthalate salts and polymer molecules, rich in stable aromatic rings. The singularity of a cold crystallization event, identified at the same loading level, confirmed the presence of an equilibrium state between nucleation and blocking effect of amorphous phase, basically related to the characteristic common terephthalate structure of synthetized Ca–Metal Organic Framework and the rPET matrix.

show abstract

“…In addition, the bands at 535 and 422 cm −1 are related to the metal‐oxygen and metal‐oxygen‐metal stretching bonds in the hydrocalumite layer of the CAL, respectively. [ 43,44 ] ]…”

Section: Resultsmentioning

confidence: 99%

Synthesis of calcium‐layered double hydroxide based nanohybrid for controlled release of an anti‐inflammatory drug

Abniki

Moghimi

Azizinejad

2020

J Chinese Chemical Soc

View full text Add to dashboard Cite

The study proposed an approach for synthesis‐Layered Double Hydroxide nanoparticles by the coprecipitation method in solution containing two divalent and trivalent metal salts, calcium, and aluminum. The synthesized calcium‐layered Double Hydroxide (CAL) used for intercalating an anti‐inflammatory drug with the purpose of obtaining controlling release rate, protecting of drug from decomposition and raising the poor aqueous solubility of drug. Mefenamic acid (ME) as anti inflammatory drug was intercalated into CAL from ion‐exchange route to preparation CAL/ME nanohybrids. An increase in the space of interlayer of the (002) plane from 8.06 Å in pristine CAL to 34.51 Å in the nanohybrid confirmed successful intercalation of ME anion into CAL framework, which was ordered in a bilayer fashion with the carboxylate functional groups in the interlayer gallery of CAL. The x‐ray diffraction and FTIR study indicated that the ME was successfully intercalated into interlayer space of CAL. The chemical composition of samples was evaluated by ICP‐OES and energy‐dispersive spectrum analysis. TG analysis confirmed that the thermal stability of intercalated ME in the form of nanohybrid was enhanced. dynamic light scattering and field emission scanning electron microscopy were determined the size of CAL particles. Finally, in vitro drug release experiments of nanohybrid at a PH of 4.8 and 7.4 showed sustained release profiles with ME anions as an anti‐inflammatory model drug.

show abstract

The Role of Organomodified DifferentLDHson Recycled Poly(ethylene terephthalate) Nanocomposites

Cited by 9 publications

References 22 publications

Bioinspired Design of LDH‐Based Mobile Building Materials with Enhanced Mechanical and Ultraviolet‐Shielding Performance

Bioinspired Design of LDH‐Based Mobile Building Materials with Enhanced Mechanical and Ultraviolet‐Shielding Performance

Thermomechanical and Morphological Properties of Poly(ethylene terephthalate)/Anhydrous Calcium Terephthalate Nanocomposites

Synthesis of calcium‐layered double hydroxide based nanohybrid for controlled release of an anti‐inflammatory drug

Contact Info

Product

Resources

About