Application of differential-scanning calorimetry for studying the properties of filled adhesive materials

Baurova, N. I.; Sergeev, A. Yu.

doi:10.1134/s1995421214020038

Cited by 16 publications

(5 citation statements)

References 1 publication

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“…Conventional samples were mounted in DSC in a liquid (viscous flow) state (that is, uncured binder) and heated at the rate of 10 K/min to the temperature of 300°C [6]. After the first warm up in DSC, the material is cured and transfers to the vitreous state, for which the glass transition temperature was further determined.…”

Section: Methodsmentioning

confidence: 99%

Estimation of glass transition temperature of polysulfone-modified epoxy binders

2014

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The properties of polysulfone modified epoxy binders, which are intrinsic for their high deforma tion characteristics, are given. The experimental results of the impact strength, bend strength, and glass tran sition temperature are given. The procedure of the measurement of the temperature range, at which there is a glass transition, is given. It has been shown that the amount of the introduced polysulfone to the binder has a greater influence on the temperature range where the change of the glass transition temperature occurs rather than its mean value.

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Section: Methodsmentioning

confidence: 99%

Estimation of glass transition temperature of polysulfone-modified epoxy binders

2014

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“…Technical literature pays a lot of attention to studies of adhesive and polymer composite materials' properties in prolonged exposure to subzero temperatures. In [3,[7][8][9] some of the fundamental problems associated with ensuring a given quality of adhesive and composite materials were considered. However, in these and many other works, researchers study the properties of materials, but not their application technology.…”

Section: Gost 16782-92mentioning

confidence: 99%

“…To overcome these drawbacks, polymer materials that allow creating glue-mechanical compounds are widely used in repair work lately [2]. In addition to the sealing capacity and corrosion resistance improvement, the use of adhesive assembly technology provides an optimal structures' strength and deformation characteristics combination [3] and the operation possibility under a long-term exposure to subzero temperatures.…”

mentioning

confidence: 99%

“…Frost resistance is the ability of polymer materials to retain initially specified physical and mechanical properties and operating abilities at temperatures below the glass transition level (for amorphous polymers) or below the brittleness temperature (for crystallized polymers) [3,5]. Depending on the requirements for a material (operational conditions, initial properties), the frost resistance criteria can be different.…”

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confidence: 99%

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Application of glue machinery repairs in Arctic conditions

2018

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In this article the possibility of repairing machines in subzerosubzero temperatures is evaluated. Standards for determination of polymer materials frost resistance and technical requirements for glues used for repairing in Arctic conditions are reviewed. The possibilities of performing separate technological transitions and operations during repair in conditions of exposure to temperatures are considered. The necessity of technology adjustment and special attention to the inter-operational quality control during repair work in the Arctic is shown.

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“…In the production of carbon fibre-reinforced plastics, an epoxy binder ENPB brand and vacuum infusion technology were used [6].…”

Section: Objects and Methodsmentioning

confidence: 99%

Modern treatment technologies of carbon fibre for ensuring the high strength carbon fibre reinforced plastic production

Nelyub

Malysheva

2017

MATEC Web Conf.

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Abstract. The investigation results of physical and mechanical properties of carbon fibre and carbon fibrereinforced plastics are presented. It is shown that the number of paramagnetic centres, which were determined by electron paramagnetic resonance method, were used as an index to define the chemical activity of the carbon fibre relative to the matrix. The number of paramagnetic centres in the carbon fibres and CFRP were analysed. The interlayers shear strength of CFRP based on epoxy resin was investigated.Applications of carbon fibre-reinforced plastics structural products for various purposes are expanding every year due to their unique complex of strength and thermal properties [1,2] and as well as the development of new moulding technologies [3][4][5].It was shown in the paper [3] that oxygen-containing functional groups with the different chemical composition and stability are present on the surface of carbon fibres, which largely determine the magnitude of the adhesive interaction of the fibre-matrix pair.Some of the functional groups are in ionized form, forming carboxylate ions. Depending on storage conditions, they are capable of hydrolysing according to various schemes, which leads to an increase (or decrease) in the reactivity of carbon fibres. It is quite difficult to quantitatively determine the concentration of oxygencontaining functional groups on the surface of carbon fibres, but it is possible to estimate experimentally the number of paramagnetic centres on the fibre and in CFRP, which also characterize their chemical activity.The aim of this paper is to determine the number of paramagnetic centres on the fibre and in CFRP, depending on the carbon fibre processing technology.

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Application of differential-scanning calorimetry for studying the properties of filled adhesive materials

Cited by 16 publications

References 1 publication

Estimation of glass transition temperature of polysulfone-modified epoxy binders

Estimation of glass transition temperature of polysulfone-modified epoxy binders

Application of glue machinery repairs in Arctic conditions

Modern treatment technologies of carbon fibre for ensuring the high strength carbon fibre reinforced plastic production

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