Hybrid Polyamide/Silica Nanocomposites: Synthesis and Mechanical Testing

Zyl, Werner E. van; Garcı́a, Monserrat; Schrauwen, B.A.G.; Kooi, Bart J.; Hosson, J.T.M. de; Verweij, H.

doi:10.1002/1439-2054(20020201)287:2<106::aid-mame106>3.0.co;2-2

Cited by 75 publications

(24 citation statements)

References 20 publications

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“…In particular, as the polymer contains functional groups such as coupling agent groups, mixing at nanometer level can be achieved, which offers the possibility of preparing transparent hybrid materials or coatings with improved mechanical properties. [13,15,17,[26][27][28][29] Polythiourethane (PTU), as a member of the polyurethane (PU) family, is an important class of materials, exhibiting high tensile strength, excellent abrasion resistance and other good mechanical properties. It has been exploited in many industrial fields such as coatings, adhesive, sealant and lenses.…”

Section: Introductionmentioning

confidence: 91%

Research on Preparation, Structure and Properties of TiO₂/Polythiourethane Hybrid Optical Films with High Refractive Index

Lü

Cui

Guan

et al. 2003

Macro Materials & Eng

128

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Hybrid optical films of TiO2‐triethoxysilane‐capped polythiourethane (TCPTU) with high refractive indices have been prepared via an in situ sol‐gel method. The high refractive index triethoxysilane‐capped polythiourethane (TCPTU) was synthesized by polyaddition of the triethoxysilane‐modified trimercaptothioethylamine (TMTEA) and 2,2′‐dimercaptoethylsulfide (MES) with 2,4‐tolylene diisocyanate (TDI). The titania content in the hybrid films can be adjusted from 0 to 80 wt.‐% by the feed ratio of titania precursor [Ti(OBu)4] to polymer (TCPTU). Both FTIR and DSC analyses indicate that there is chemical bonding between the titania domain and the polymer chain. TGA results suggest that the titania of high content was successfully incorporated into polymer matrices and this series of hybrid films have good thermal properties. AFM measurements indicate that in the hybrid films the titania domains are of nanosize scale and the domain size averagely decreases from 60–80 nm to 5–20 nm with increasing content of titania, and the variation of surface roughness for the hybrid films has the same trend. These may be relative to the content of TCPTU and the interaction between titania and polymer (TCPTU). The refractive indices of the hybrid films at 632.8 nm increased from 1 632 to 1 879 as the titania content varied from 0 to 80 wt.‐%.AFM image of the hybrid film.magnified imageAFM image of the hybrid film.

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Section: Introductionmentioning

confidence: 91%

Research on Preparation, Structure and Properties of TiO₂/Polythiourethane Hybrid Optical Films with High Refractive Index

Lü

Cui

Guan

et al. 2003

Macro Materials & Eng

128

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“…As a result, the crystallinity of nylon 6 was influenced and lowered by the introduction of the KCC-1 nanoparticles in the composite nanofibers. This result also observed by others (Shi et al 2011;van Zyl et al 2002), where the diffraction peak intensity corresponding to nylon 6 at 2h = 22°or 24°was decreased upon addition of 3, 15, and 30 % silica into nylon 6. The effect of silica on the crystallinity of the silica/polymer electrospun nanofiber was studied using other polymers such as PAN, in which silica largely influenced the crystallinity of the PAN (Ji et al 2008).…”

Section: Xrd Of Kcc-1/nylon 6 Composite Nanofibersmentioning

confidence: 99%

Preparation of a novel KCC-1/nylon 6 nanocomposite via electrospinning technique

2015

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In this research, a novel nanofibrous composite of KCC-1/nylon 6 was prepared using electrospinning techniques. First, fibrous silica nanospheres (KCC-1) were synthesized via conventional polycondensation method with a new solvent system. The scanning electron microscopy (SEM) images showed a spongy spherical morphology with a uniform distribution of particle sizes and an average diameter of around 305 nm. Synthesized KCC-1 nanospheres are considered as mesoporous materials due to their high BET specific surface area of 576 m 2 g -1 and BJH average pore diameter of 3.28 nm. The KCC-1/nylon 6 composite was fabricated by preparing a dispersion of nanosilica (10-50 % w/w) in a solution of nylon 6 (15 % w/v) in formic acid. Upon applying a high voltage, the nonwoven electrospun KCC-1/nylon 6 composite nanofibers were obtained. The KCC-1 nanospheres were arranged in line along the nylon 6 fibers like rosary beads wrapped in the polymer. Based on the SEM images, we obtained a well-distributed nanocomposite even at higher silica content. The prepared KCC-1/nylon 6 composite showed 29-55 % higher BET specific surface area compared with pure nylon 6 nanofibers which makes it a good candidate to be used as a sorbent material for environmental or drug delivery applications.

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“…Film casting techniques are dominated by either spin coating on to substrates or slip casting to produce free standing films. As an alternative, nanoparticle dispersions in polyimide (PI) monomer solutions followed by film formation and thermal curing can be employed to produce highly homogeneous composite thin films which may be either supported or free standing (van Zyl et al, 2002, Mora-Huertas et al, 2004. Carbon nanoparticle -polyimide (C-PI) thin films can be prepared by the in-situ polymerization technique for a wide range of molecular compositions which yield either single nanoparticle and nanocluser dispersions as shown in Fig.…”

Section: Nanoparticle -Polymer Compositesmentioning

confidence: 99%

Electronic Functionality of Nanocomposites

Murugaraj¹,

Mainwaring²

2011

Advances in Diverse Industrial Applications of Nanocomposites

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Hybrid Polyamide/Silica Nanocomposites: Synthesis and Mechanical Testing

Cited by 75 publications

References 20 publications

Research on Preparation, Structure and Properties of TiO₂/Polythiourethane Hybrid Optical Films with High Refractive Index

Research on Preparation, Structure and Properties of TiO₂/Polythiourethane Hybrid Optical Films with High Refractive Index

Preparation of a novel KCC-1/nylon 6 nanocomposite via electrospinning technique

Electronic Functionality of Nanocomposites

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Hybrid Polyamide/Silica Nanocomposites: Synthesis and Mechanical Testing

Cited by 75 publications

References 20 publications

Research on Preparation, Structure and Properties of TiO2/Polythiourethane Hybrid Optical Films with High Refractive Index

Research on Preparation, Structure and Properties of TiO2/Polythiourethane Hybrid Optical Films with High Refractive Index

Preparation of a novel KCC-1/nylon 6 nanocomposite via electrospinning technique

Electronic Functionality of Nanocomposites

Contact Info

Product

Resources

About

Research on Preparation, Structure and Properties of TiO₂/Polythiourethane Hybrid Optical Films with High Refractive Index

Research on Preparation, Structure and Properties of TiO₂/Polythiourethane Hybrid Optical Films with High Refractive Index