A cold-curing adhesive for the construction industry

Chursova, L. V.; Raskutin, A. Ye.; Gurevich, Ya. M.; Panina, N. N.

doi:10.1134/s1995421212040041

Cited by 8 publications

(5 citation statements)

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“…A small increase of η > 0 (flexural tests) for heat treated specimens and then constancy of this value at the prolonged room exposure (see Table 2) can be explained by polymerization peculiarities of roomtemperature curing epoxy binders used in this investigation. An exothermic nature of polymerization of these binders, reduces the composition gel time, and causes its uneven curing and incomplete conversion of the epoxy groups [18]. Therefore, the additional heat treatment, which caused a greater degree of conversion of the epoxy groups in layered composite, has led to the observed increase of its elastic modulus and healing efficiency.…”

Section: Fabrication Of Laminate Specimens and Their Flexure Testsmentioning

confidence: 99%

Development of Composites with a Self-Healing Function

Aniskevich

Vidinejevs

Kulakov

et al. 2015

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This research aimed to realize experimentally the facile vascular self-healing system in epoxy glass fibre reinforced composite. Using flexible polytetrafluoroethylene tubes as removable preforms, the channels were embedded into both neat epoxy resin and unidirectional glass-fibre reinforced epoxy laminate. Room temperature curable epoxy resin with a surfactant and an amine-based hardener were the components of the binary healing agent. The specimens of tapered double cantilever beam geometry were subjected to Mode I fracture tests. Fracture of specimens released the healing agent from channels and triggered self-healing process of the crack. Tested neat epoxy resin specimens demonstrated recovery of fracture toughness ca. 70 % after 24 h of self-healing at 50 °C. Unidirectional laminate specimens (250 × 23 × 1.2 mm 3 ) were made by vacuum infusion method from two layers of glass yarns with 5 embedded channels aligning to reinforcing fibers. The channels were alternately filled with components of the healing agent and then sealed. It was revealed that the embedded vascular channels in specimens had very little effect on their elastic modulus. The experimental program included multiple three-point bending tests of specimens for their initial damage and self-healing of specimens during their heat treatment and following exposure at room temperature. Static and dynamic flexural moduli of elasticity were determined by three-point bending and cantilever beam vibration at all stages of the test program. The healing efficiency was evaluated as a relative change of elastic modulus. The efficiency ca. 30 % was reached during 24 h at 50 °C and additionally increased up ca. 40 % after more than 3 weeks of room temperature exposure. The sealed healing agent was capable of maintaining the capacity for self-healing for at least six months. The research results demonstrated capacity of the macro-channel approach for self-healing realization in multifunctional polymer composite materials.

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Section: Fabrication Of Laminate Specimens and Their Flexure Testsmentioning

confidence: 99%

Development of Composites with a Self-Healing Function

Aniskevich

Vidinejevs

Kulakov

et al. 2015

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“…One of the ways to improve the reliability and dynamic comfort of the unique buildings is the use of composite materials with high strength and lightness compared to concrete and metal. Composite materials based on high-strength carbon fibers are widely used in the aviation industry [2]. The physical and mechanical properties of materials depend on the degree of saturation of the source material with carbon dioxide, determining the degree of imperfection of the resulting crystal.…”

Section: Introductionmentioning

confidence: 99%

Reinforcement of Structures with Composite Materials

Kravchenko

Trufanova

Osadchiy

et al. 2019

MSF

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The aim of the work is to study the ways to strengthen the elements of the parametric architecture object framework based on the use of the new materials. The problem of strengthening the elements of the building frame is particularly relevant in connection with the development of the parametric architecture. Unlike the traditional methods of regulation and amplification, composite materials allow to change the stress-strain state and improve the dynamic characteristics of the parametric architecture object without increasing its own structures weight. The studies were performed using numerical simulation by the finite element method. Recommendations are given on the use of the physical and mechanical properties of the composite materials when strengthening the building framework.

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“…To keep pace with novelties, existing construction standards and regulations, in particular those pertaining to building structures are revised and amended [9,10]. There are many articles including scientific publications [11][12][13][14][15] that deal with exploration of problems related to using polymer. Analysis of the problem demonstrates that reduced capital construction costs is related to the results of business activities taking place in different spheres, gaining objective of production of inexpensive and eco-friendly grades of polymer materials.…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly Polymer Construction Materials

Gerasimova

Zotikova

2016

MSF

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This article addresses contemporary construction polymer elements found useful in civil engineering and construction in Russia due to their high technical and economical efficiency. Advantages and drawbacks of the polymer materials are reviewed. This work in no way claims a fullness of reviewing all the issues of using polymers in construction, but it nevertheless enables to provide a general insight into the problems to be solved in the field of future production and use of environmentally safe polymer materials for construction applications. One of the substantial goals of the applied research is to design rather durable, non-toxic and fire-resistant construction materials intended for construction of residential and public buildings. Readers can get an overview about ecological problems linked to the production and application of the polymers in construction field.

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A cold-curing adhesive for the construction industry

Cited by 8 publications

References 0 publications

Development of Composites with a Self-Healing Function

Development of Composites with a Self-Healing Function

Reinforcement of Structures with Composite Materials

Eco-Friendly Polymer Construction Materials

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