Determination of Adhesion of Silyl Modified Polymer Adhesives to Wooden Façade Cladding – Case Study

Nečasová, Barbora; Kovářová, Barbora; Liška, Pavel; Šlanhof, Jiří

doi:10.1016/j.proeng.2015.06.165

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…It should also be mentioned that anchorage via bonding is not suitable for every material, as is stated in [20], e.g. when used in combination with wood plastic composit: even when the installation techniques are strictly followed, the effectiveness of bonded joints is limited and they are unable to resist the effects of wind or hygro-and thermal expansivity.…”

Section: Discussionmentioning

confidence: 99%

Experimental Investigation of the Tensile Properties of Ventilated Facade Cladding with Bonded Joints

Liška

Šlanhof

Nečasová

et al. 2016

AMM

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Currently, an increasing emphasis is being placed on the properties of walling systems and efforts are evidently being made to improve the aesthetic look of structures. Vented facade systems with bonded joints are a viable option. Nowadays, the vast majority of such facades utilise mechanical joints. However, facades with bonded joints are more than simply a convenient alternative. The following article, where the potential use of bonded joints in practice is investigated via experimental measurements, deals with this technology in more detail. The presented results are taken from a series of tests which conform to the requirements of relevant technical standards, particularly with regard to the test method. This article deals with the issues connected with testing the most critical element in the whole system – the bonded joint. For this purpose, “Cetris” cement-bonded particleboard was selected for use as cladding material, and a substructure made from aluminium alloy was chosen. Five types of adhesive were selected in order to find the most suitable bonding material. During the testing procedures, the suitability of the selected adhesives for the chosen combination of materials was tested, as was the assumption that the use of the most expensive sealant does not always provide the best results.

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Section: Discussionmentioning

confidence: 99%

Experimental Investigation of the Tensile Properties of Ventilated Facade Cladding with Bonded Joints

Liška

Šlanhof

Nečasová

et al. 2016

AMM

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“…The results showed that adhesive properties of solid wood are ideal, no matter if the used adhesive system is intended for bonding of wood or not. On the contrary, it was verified that bonding of wood plastic composite is wholly inadequate [4]. Thus the aim of the presented case study is to improve the adhesive bonding of wood plastic composite while same adhesive systems as in the previous research are used.…”

Section: Introductionmentioning

confidence: 85%

Study on Surface Treatments of Modified Wood Plastic Composite (WPC) to Improve Adhesion

Nečasová

Liška

Kelar

2016

AMM

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The presented case study is focused on the complications that affect the adhesion properties of wood plastic composites. In an effort to improve the physical properties of the WPC and the adhesive bonding between the selected material and adhesive systems intended for façade bonding, several surface pretreatments were performed. The surface modification consisted of mechanical roughening or physical treatment with diffuse coplanar surface barrier discharge. The shear strength of the adhesive bond was tested following ČSN EN 1465 and the maximum shear stress was calculated for each treatment method. Although, the increase in bond strength due to these treatments was measured only for one tested adhesive system where the strength was increased by 100% with respect to the control, the diffuse plasma treatment improved the adhesive bondability and a change in failure mode was observed in all tested cases.

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“…13,14,15 SMPs thus present the advantage of being particularly environmentally and industrially attractive water-based and solvent-free adhesives for which shrinkage, typically encountered with solvent-based adhesives, hardly occurs upon curing. 16,17,18,19,20,21,22,23,24,25,26 The curing process of SMPs involves hydrolysis of the silyl alkoxide FG(s) which then results in the formation of cohesive siloxane (−Si−O−Si−) bonds, thus insuring the cross-linking of a liquid or gel pre-material into a 3D solid one, and assuring the cohesive adhesive joint providing the resistance of the assembly. 2,5,7,[13][14][15]21 Curing is a two-step process involving first the conversion of the alkoxysilane to silanol followed by the condensation of −Si−OH and −Si−OR to form siloxane linkages upon elimination of ROH (or by condensation of two −Si−OH accompanied with H 2 O abstraction) (Scheme 1).…”

Section: Silyl-modified Polymers (Smps)mentioning

confidence: 99%

Advances in the synthesis of silyl-modified polymers (SMPs)

Guillaume

2018

Polym. Chem.

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Determination of Adhesion of Silyl Modified Polymer Adhesives to Wooden Façade Cladding – Case Study

Cited by 6 publications

References 5 publications

Experimental Investigation of the Tensile Properties of Ventilated Facade Cladding with Bonded Joints

Experimental Investigation of the Tensile Properties of Ventilated Facade Cladding with Bonded Joints

Study on Surface Treatments of Modified Wood Plastic Composite (WPC) to Improve Adhesion

Advances in the synthesis of silyl-modified polymers (SMPs)

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