The main aim of the PhD thesis is to determine the influence of moisture on the me-chanical properties of furniture construction joints. The influence of moisture was examined in two groups of joints: glued joints along the length and corner joints with glued and mecha-nical fasteners. In both groups of tested joints, the joints were made of DTD, plastic and a combi-nation of these materials. Construction joints are tested for two environments with ap-propriate weather conditions, that the interiors of residential and public buildings - an envi-ronment with conditions t = 23 ± 2° C, WR = 45 ± 5 % and humid environment with condi-tions t = 23 ± 2° C, WR = 90 % (bathrooms, laundry rooms, swimming pools). Two types of mate-rials were selected, which were examined separately as well in their mutual combination. In the case of joints glued along the length, the load carring capcity of glued joint was determi-ned with two types of adhesives: epoxy and polyurethane. The highest values of strength were achieved with a material combination of plastic - plastic and a humidity of 45 % and 90 % using the PUR adhesive. The influence of moisture on the stiffness and the load carrying capacity of the joints was examined in the corner joints. In the case of corner joints, the influence of moisture on the mechanical properties was not confirmed , the decisive factor is influence of the bonded materials and the position of the fasteners.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:425046 |
| Date | January 2017 |
| Creators | Máchová, Eliška |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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