Damping properties and morphology of polyurethane/vinyl ester resin interpenetrating polymer network

Qin, Chuanli; Cai, Weiping; Cai, Jun; Tang, Dongyan; Ju-sheng, Zhang; Qin, Mei

doi:10.1016/j.matchemphys.2004.01.019

Cited by 151 publications

(98 citation statements)

References 9 publications

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“…The broadening of the tan ! peaks and decrease of T g suggest that the damping properties and low temperature resistance of the blends are improved [28,29]. With the addition of PU-SiO 2 , a noticeable reduction in tan !…”

Section: Dynamic Mechanical Analysismentioning

confidence: 97%

Novel blends of acrylonitrile butadiene rubber and polyurethane-silica hybrid networks

Tan¹,

Wang²,

Tai³

et al. 2012

Express Polym. Lett.

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Abstract. Novel blends of acrylonitrile butadiene rubber (NBR) and polyurethane-silica (PU-SiO 2 ) hybrid networks have been prepared by melt blending. The PU-SiO 2 hybrid networks were formed via the reaction of NCO groups of NCO-terminated PU prepolymer and OH groups of SiO 2 in the absence of an external crosslinking agent (i.e. alcohols and amines) during the curing process of NBR. Both in the neat PU-SiO 2 system and the NBR/(PU-SiO 2 ) system, the NCO-terminated PU prepolymer could be crosslinked by SiO 2 to form PU-SiO 2 hybrid networks. The effects of PU-SiO 2 introduction into the NBR, on the properties of the resulting blends were studied. It was found that the vulcanization was activated by the incorporation of PU-SiO 2 . Transmission electronic microscopy (TEM) studies indicated that the interpenetration and entanglement structures between NBR and PU-SiO 2 increased with increasing PU-SiO 2 content and the quasi-interpenetrating polymer networks (quasi-IPN) structures were formed when the PU-SiO 2 was 50 wt% in the NBR/(PU-SiO 2 ) systems. The microstructures formed in the blends led to good compatibility between NBR and PU-SiO 2 and significantly improved the mechanical properties, abrasion resistance and flex-fatigue life of the blends.

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Section: Dynamic Mechanical Analysismentioning

confidence: 97%

Novel blends of acrylonitrile butadiene rubber and polyurethane-silica hybrid networks

Tan¹,

Wang²,

Tai³

et al. 2012

Express Polym. Lett.

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show abstract

“…So in order to evaluate the mechanical characteristics of this material it needs the analytical evaluation as well because, it has the anisotropic property and complicate structure. Hence in this paper, the modeled specimen was analyzed by using commercially available finite element analysis software (ANSYS) [12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of IPN Reinforced Woven Fabric Composite

Suresh¹,

Jayakumari

Dinesh³

2017

Matéria (Rio J.)

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A series of E-Glass fiber reinforced polyurethane (PU)/vinyl ester(VER) resin interpenetrating polymer network (IPN) composites were prepared. The Mechanical Properties like tensile, flexural and impact of IPN composite were studied. Results revealed that addition of PU increases the impact strength by 8.33%, 7.69%, 14.28%, 12.5%, 11.11% for the proportinate of 0%PU, 10%PU, 20%PU, 30%PU, 40%PU, 50%PU respectively, at the slight expense of decrease in flexural and tensile modulus. The obtained experimental results were compared with the Finite Element Analysis data's (ANSYS 10). The comparison shows good agreement with experimental data's.

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“…Normally VER possess excellent damping property because it contains either ethyl ester or butyl ester groups, which have good potential barrier and more mobility. As well its side ester group increases the distance between the molecules and offsets volume effect of the bulky groups [16] . The vinyl ester based composites showed the fiber pull out mechanism and rupture on fiber, after the impact test [18] .…”

Section: Impact Strength Resultsmentioning

confidence: 99%

“…There may the chance of formation of void content in the IPNs because of presence of carbondioxide, which was the by product of the isocyanate and presence of humidity in the air, during the course of study it might harm the strength of the specimen. So utmost care was taken during specimen manufacturing in such a way, before specimen manufacturing the polyol and the TDI was kept in the degassed chamber for the period of two hours to eliminate the dissolved air and water [16] .…”

Section: Fabrication Of Ver and Ver/pu Ipn-glass And Carbon Fiber Commentioning

confidence: 99%

Evaluating the mechanical properties of E-Glass fiber/carbon fiber reinforced interpenetrating polymer networks

Suresh

Jayakumari

2015

Polímeros

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SbstractA series of vinyl ester and polyurethane interpenetrating polymer networks were prepared by changing the component ratios of VER (Vinyl ester) and PU (Polyurethane) and the polymerization process was confirmed with Fourier Transform infrared spectroscopy. IPN (Inter Penetrating Polymer Network -VER/PU) reinforced Glass and carbon fiber composite laminates were made using the Hand lay up technique. The Mechanical properties of the E-glass and carbon fiber specimens were compared from tests including Tensile, Compressive, Flexural, ILSS (Inter Laminar Shear Strength), Impact & Head Deflection Test (HDT). The IPN Reinforced Carbon fiber specimen showed better results in all the tests than E-Glass fibre reinforced IPN laminate with same thickness of the specimen, according to ASTM standards. It was found that the combination of 60%VER and 40%PU IPN exhibits better impact strength and maximum elongation at break, but at the slight expense of mechanical properties such as tensile, compressive, flexural, ILSS properties. The morphology of the unreinforced and reinforced composites was analyzed with help of scanning electron microscopy.

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Damping properties and morphology of polyurethane/vinyl ester resin interpenetrating polymer network

Cited by 151 publications

References 9 publications

Novel blends of acrylonitrile butadiene rubber and polyurethane-silica hybrid networks

Novel blends of acrylonitrile butadiene rubber and polyurethane-silica hybrid networks

Finite Element Analysis of IPN Reinforced Woven Fabric Composite

Evaluating the mechanical properties of E-Glass fiber/carbon fiber reinforced interpenetrating polymer networks

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