Synthesis and characterization of a new photosensitive and electroactive polyamide/LDH nanocomposite containing azo groups

Basaki, Nematollah; Kakanejadifard, Ali; Shabanian, Meisam; Faghihi, Khalil

doi:10.1007/s00289-019-03048-8

Cited by 5 publications

(1 citation statement)

References 47 publications

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“…LDH organic modi cation can be achieved successfully by following one of the main processes such as calcination/ memory effect [14,15], anion exchange [5,16] Layered double hydroxides polymer based nanocomposites have been widely investigated with numerous polymers, including epoxy resins [19,20], polyamide [21], PET [22], thermoplastic polyurethane (TPU) [23], PLA [24][25][26], PVC [27], PP [28], and PE [29][30][31]. Besides the considerable number of LDHs applications in many elds, it is very important to mention that organic layered double hydroxide nano llers have a predominant role in the material chemistry eld because of their wide range of industrial applications [32].…”

Section: Introductionmentioning

confidence: 99%

The effect of laboratory synthesized and modified layered double hydroxides on recycled and neat high density polyethylene matrix properties using stearic acid as an interface modifier

DERRADJ,

Zoukrami,

GUERBAA

et al. 2023

Preprint

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In this research, the effect of layered double hydroxides (LDHs) as nanofillers on recycled and neat high density polyethylene (HDPE) properties was investigated. The synthesis of unmodified and modified LDHs was achieved via one-pot hydrothermal co-precipitation method at a constant pH. The nanofillers were organically modified by using sodium dodecyl sulphate (SDS) as surfactant and stearic acid (SA) as an interface modifier in order to overcome the incompatibility problems with HDPE Matrix. The nanocomposites were prepared by melt blending and compression molding with 3 and 5 wt% filler loading rate. Thermal, structural, and morphological tests were conducted to analyze the performance of the LDHs and the compatibilizing agent on the dispersion, and on the properties of the studied composites. Results revealed that 3 wt% of unmodified LDHs filler reinforced all physical and mechanical properties of the obtained nanocomposites based on recycled and neat HDPE matrix. When the weight of LDHs was increased to 5 wt%, morphological observations showed that SA has prevented the aggregation of LDHs particles and improved their dispersion into the recycled HDPE matrix. The physical and mechanical properties of the composite materials were enhanced dramatically with the addition of stearic acid as interface modifier into the recycled polymeric matrix compared to SDS intercalating which improved only the izod impact strength. The formulations of r-HDPE/3%LDH and r-HDPE/5%LDH-1%SA were found to be the ideal combinations which could provide novel mechanical applications to meet industrial requirements at higher scale.

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