Preparation and characterization of PET/silica nanocomposites

Liu, Wen Tao; Tian, Xingyou; Cui, Ping; Li, Yong; Zheng, Kang; Yang, Ye

doi:10.1002/app.13284

Cited by 95 publications

(65 citation statements)

References 28 publications

(26 reference statements)

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“…The homogeneous dispersion of nanoscale particles in the polymer matrices and the good interfacial interaction between them are the key points to the fascinating properties exhibited by polymer/ inorganic nanocomposites. Several methods have been developed to prepare polymer/inorganic nanocomposites, including in situ polymerization [3,4], melt-blending/ extrusion [5] or solution blending [6]. Among these methods, in situ polymerization has been proved to be an effective way to prepare high-performance nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of poly(butylene terephthalate)/silica nanocomposites

Yao

Tian

Zhang

et al. 2009

Polymer Engineering & Sci

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In this study, we presented a convenient, in situ polymerization route for the preparation of Poly (butylene terephthalate) (PBT)/silica nanocomposites, in which silica was not premodified. The nanocomposites were synthesized by in situ polymerization of terephthalic acid (TPA), 1,4-butanediol (BD) and silica. The structure of these nanocomposites were investigated by Fourier transform infrared (FTIR) and thermogravimetric analyses (TGA). The results show that PBT chains were successfully grafted onto the surface of silica. Transmission electron microscope (TEM) micrographs revealed that silica were homogeneously dispersed in PBT matrix at a size level of 10-20 nm. The isothermal crystallization kinetics of pure PBT and PBT/silica nanocomposites were investigated by differential scanning calorimeter (DSC) and simulated by Avrami model. The existence of silica could lead to an acceleration of crystallization and enhance the thermal stability of PBT. According to dynamic mechanical analysis (DMA), the storage modulus of PBT/silica nanocomposites were markedly improved compared with pure PBT.

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of poly(butylene terephthalate)/silica nanocomposites

Yao

Tian

Zhang

et al. 2009

Polymer Engineering & Sci

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“…15 The same result has been observed in the report of Liu et al studying poly(ethylene terephthalate) (PET)/silica nanocomposites. 16 In this study, the increase of T c is suggested that the silica nanoparticles result in the change from homogeneous nucleation to heterogeneous nucleation. In the case of heterogeneous nucleation resulting from the foreign materials, it is well known that T c tends to increase due to the nucleating effect of the materials.…”

Section: Resultsmentioning

confidence: 74%

Effect of Silica Nanoparticle on the Quiescent and the Shear Induced Crystallization Behaviors of Poly(trimethylene terephthalate)

Nam

Shim

Kim

et al. 2004

Polym J

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ABSTRACT:The isothermal crystallization behavior of poly(trimetylene terephthalate) (PTT) containing silica nanoparticles was investigated. The addition of silica nanoparticles increased the crystallization temperature of PTT by 20 C and notably decreased the size of the crystals. Higher silica nanoparticle content led to greater depression of equilibrium melting temperature. Quiescent isothermal crystallization in DSC capsule showed that silica nanoparticles acted as a nucleating agent for PTT and decreased the half time for crystallization. In the case of PTT containing silica nanoparticles 1 and 2 wt %, however, little difference in the crystallization behavior was noticeable, suggesting that the silica content of 1 wt % is the critical level for nucleating. Isothermal crystallization under dynamic shear showed similar crystallization behavior with quiescent crystallization. In addition, higher shear rate accelerates the crystallization rate of PTT. However, X-Ray diffraction result revealed that the content of silica nanoparticles and application of shear had little effect on the resultant crystal structure. [DOI 10.1295/polymj.36.519] KEY WORDS Poly(trimethylene terephthalate) (PTT) / Nanocomposites / Crystallization / Nucleation / A variety of inorganic materials, such as glass fiber, talc, calcium carbonate, and clay minerals, have been widely used as additives or reinforcements to improve the thermal and mechanical properties of organic polymers. The key factors to enhance such properties include the size, shape, dispersion state, and interfacial adhesion of fillers in the polymer matrix. In recent years, the organic nanocomposites incorporating some nano-sized inorganic particles have attracted much attention as newly emerging materials. When compared with the conventional composites including submicron inorganic particles the nanocomposites are expected to give new and much improved properties even at the same composition.1-3 Some examples include increase of tensile modulus and strength, barrier properties, resistance to solvent, fire and heat, and optical transparency. [4][5][6] Moreover, these improvements are expected to be obtained at much lower loading levels than the submicroparticles. The desired content of 1-10 wt % for nanoparticle is comparable with that of 25-40 wt % for submicronparticles in efficiency. Recently, poly(trimethylene terephthalte) (PTT) attracts much attention among polymer processors and is being intensively investigated as engineering thermoplastics and as a matrix for fiber-reinforced composite due to its good thermal and mechanical properties. 8,9 In addition, PTT is predicted to obtain a large share in synthetic fiber market in the future because of its peculiar properties. Fumed silica nanoparticles manufactured by high-temperature hydrolysis of silicon tetrachloride in a flame has a spherical shape, extremely large surface areas, and a non-porous surface, which could promote physical contact with polymer matrix.10 Sumita et al. 11 early pointed out the benefits of re...

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“…Zheng and Wu (2007) in their study have shown that nanosilica do not behave as a nucleating agent but rather retard the appearance of the microcrystalline phase that enhances spinnability. Liu et al (2004) have found that the addition of nanoparticles increases the crystallization temperature and the melting point of the polymer.…”

Section: From Kementrian Kelautan Dan Perikanan (Ocean and Fisheries mentioning

confidence: 99%

Living Tower Construction as Fish Apartment With Glass Powder/Pet Composite Basic Technology

Dioktyanto

Jati

Purwaningsih

et al. 2017

mijst

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Preparation and characterization of PET/silica nanocomposites

Cited by 95 publications

References 28 publications

Preparation and characterization of poly(butylene terephthalate)/silica nanocomposites

Preparation and characterization of poly(butylene terephthalate)/silica nanocomposites

Effect of Silica Nanoparticle on the Quiescent and the Shear Induced Crystallization Behaviors of Poly(trimethylene terephthalate)

Living Tower Construction as Fish Apartment With Glass Powder/Pet Composite Basic Technology

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