Synthesis and characterization of high temperature resistance interpenetrating polymer network

Kirubaharan, A.M. Kamalan; Palraj, S.; Selvaraj, M.; Gopalakrishnan, R.

doi:10.1002/app.32027

Cited by 12 publications

(7 citation statements)

References 22 publications

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“…When comparing curves c and d in Figure , the spectra are mainly unchanged except the small band at 1270 cm −1 , which is due to OC 2 H 5 on the SiOC 2 H 5 groups that disappeared at 600°C. The small absorption peak at 1270 cm −1 and the small weight loss of the DTG spectra at 520°C are consistent with the small amount of SiOC 2 H 5 groups present in the silicone resin, which is demonstrated from the analyses of C1s XPS of sample BSR‐1#, the smallest area (5.5% of total area) of the peak at 285.89 eV corresponding to C atoms from SiOC 2 H 5 groups owing to incompletely hydrolyzed. In the other hand, the relative high binding energy in XPS of this kind of C atoms (SiOC 2 H 5 ) also indicates that the connection of OC in this groups are more stable, which is consistent with the relative high temperature for the second degradation stage in DTG thermogram in Figure .…”

Section: Resultssupporting

confidence: 73%

Synthesis and thermal stability properties of boron‐doped silicone resin

Hao

Zhang

et al. 2014

J of Applied Polymer Sci

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In this article, a novel boron‐doped silicone resin (BSR) was synthesized by hydrolysis‐polycondensation method, with propyl‐triethoxysilane (PTES), dimethyl‐diethoxysilane (DMDES), and boric acid (BA) as starting materials, using absolute ethyl alcohol as solvent and hydrochloric acid as catalyst. The structures of the BSR were characterized by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), X‐ray photoelectron spectroscopy (XPS), and gel permeation chromatography (GPC). FTIR spectra showed characteristic BOSi and SiOSi stretching modes. XPS and NMR results confirmed further that boron element was doped successfully into the main chains of the silicone resin as SiOB bond motifs, and hydroxyl groups from BA were condensed properly with SiOH or SiOR to form cross‐linked structure of BSR with narrowed molecular weight distributions in optimum experimental condition. The thermal stability of the BSR was studied by thermogravimetry analysis and derivative thermogravimetry. The thermal degradation temperature of the silicone resin improved greatly after doping element boron into the main chain, and the thermal stability of the BSR was influenced by the content of boron. The thermal degradation mechanism of this BSR was also discussed. The degradation process can be divided into two stages, the weight loss in the first stages may be corresponding to the loss of the small groups and weaker bonds in the chains, such as CH3, and C3H7, the weight loss in the second stage may be corresponding to the loss of the group as OC2H5. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40934.

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Section: Resultssupporting

confidence: 73%

Synthesis and thermal stability properties of boron‐doped silicone resin

Hao

Zhang

et al. 2014

J of Applied Polymer Sci

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“…The AFM morphology showed that the IPN had smooth glossy and heterogeneous microstructures. 25 The silicon resin used for this preparation was nondrying type with molecular weight 4000. The pigments used for this formulation were commercial TiO 2 and SiO 2 with the pigment loading of 15 PVC.…”

Section: Preparation Of Micropigmented Coatingsmentioning

confidence: 99%

Synthesis and characterization of nanosized titanium dioxide and silicon dioxide for corrosion resistance applications

et al. 2009

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We are reporting the preparation and characterization of nano-titanium dioxide and silica. The corrosion resistance performance of these nanopigments in silicone as well as silicone-polypyrrole Interpenetrating Polymer Network has been evaluated by impedance spectroscopy. The capacitance and resistance exerted by this nanocomposite coating were compared with the microcomposite coating and found that the nanocomposite coatings has the resistance in the order of 10 8 X cm 2 in 3% sodium chloride solution, which is more than the microcomposite coating. The comparison of heat resistance performance of these composite coatings indicates that nanocomposite coatings exhibit higher heat resistance property than the microcomposite coatings.

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“…[4] They show excellent thermal stability and mechanical properties because of a synergistic effect induced by the forced compatibility of the individual components. [5][6][7] Polyurethane/epoxy resin (PU/EP) IPNs, which integrate the advantages of polyurethane and epoxy resin, show relatively excellent thermal and mechanical properties. In recent years, much attention has been paid to them and their modification.…”

Section: Introductionmentioning

confidence: 99%

Tribological Properties of Hydroxyl-Terminated Liquid Nitrile Rubber-Modified Polyurethane/Epoxy Interpenetrating Polymer Network Composites

Chen

Wang

2013

Journal of Macromolecular Science, Part B

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A series of castor oil-based polyurethane (PU)/epoxy resin (EP) graft interpenetrating polymer network (IPN) composites modified by two kinds of hydroxy-terminated liquid nitrile rubber (HTLN) was prepared. A systematic investigation of the tribological properties of the two kinds of HTLN-modified PU/EP IPN composites was carried out through a pin-on-disk arrangement under dry sliding conditions. Experimental results revealed that the incorporation of HTLN can improve the friction and wear properties of PU/EP IPN significantly. Both the friction coefficient and wear loss decreased withincreasing content of HTLN. The worn surfaces of the samples were analyzed using scanning electron microscope and a three-dimensional (3D) noncontact surface-mapping profiler; the results showed that the worn surfaces of the PU/EP IPN composites became smooth when the HTLN was added. The mechanisms for the improvement of tribological properties are discussed.

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Synthesis and characterization of high temperature resistance interpenetrating polymer network

Cited by 12 publications

References 22 publications

Synthesis and thermal stability properties of boron‐doped silicone resin

Synthesis and thermal stability properties of boron‐doped silicone resin

Synthesis and characterization of nanosized titanium dioxide and silicon dioxide for corrosion resistance applications

Tribological Properties of Hydroxyl-Terminated Liquid Nitrile Rubber-Modified Polyurethane/Epoxy Interpenetrating Polymer Network Composites

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