| Summary: | 碩士 === 國立高雄第一科技大學 === 營建工程研究所 === 100 === Resulting in global climate change, waste continued to increase with the development of the human high-tech, low energy buildings has become one of the new architectural trends. In many ways to construct low-energy buildings, building insulation-coating can be treated as one of the representative methods, featured as its simple implementation and effective improvement on the indoor temperature to achieve the energy-saving effect. In recent years, many R & D teams gradually developed thermal insulation-coatings for a variety of different functions, but most of the available insulation-coating cost higher and the composition of the insulation-coating contain more-or-less environmentally harmful substances. The purpose of this study is to develop building thermal insulation-coatings with less impact on the environment, through natural and environmentally friendly pharmaceutical recycling of waste polystyrene and waste rubber.
This research will attempt to process the waste rubber and polystyrene with environmental chemical additives to produce the insulation-coatings. In order to find out the initial configuration of the coating constituents, the grid-point method was introduced to make up the first formulation, then, based on the best guess on the configuration of the coating constituents, the design experimental levels(3 levels)for different coating constituents could be decided by introducing the golden-section ratio. Then, the orthogonal experimental design method (L27(313)) was adopted by choosing thermal conductivity, viscosity, surface drying time, tensile strength, pull - elongation rate as orthogonal indicators. Through orthogonal experiment design method, the most influential coating constituents on different indicators could be pointed out by F-test in analysis of variance.
In this research, by considering the test items and features of commercial insult-coatings, the initial formulation experiment is based on the basic performance by the viscosity and drying time. In Design of Experiments, the strength and insulation properties were analyzed by range analysis and analysis of variance. The results showed that the sequence affect the tensile strength of the optimal factor and standard polystyrene (27.6%), solvent DL (25%), rubber powder (18.4%), rosin (30.3%), plasticizer TB (0.5%); Elongation optimal factor and standard order the plasticizer TB of (1.5%), rosin (30.3%), solvent DL (55%), polystyrene (27.6%), rubber powder (18.4%), while affect the thermal conductivity of optimal factor and the standard order of rosin (30.3%), solvent DL (55%), plasticizer TB (0.5%), polystyrene (27.6%), rubber powder (18.4%), this result material factor for the thermal conductivity, tensile strength and tensile rate of change in trend can be used as the next adjustment of waste polystyrene insulation-coating the basis of the ratio. In addition, the certified test results show that this stage developed thermal insulation-coatings, tensile strength, tensile, thermal conductivity and positive and negative temperature difference through the roof of the lights and heat source in the model roof achieves target-values, confirming the development effectiveness of thermal insulation-coatings.
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