| Summary: | 碩士 === 國立臺北科技大學 === 化學工程研究所 === 98 === Synthetic polymers are a crucial part of today’s life, they can be found nearly everywhere. Today, synthetic polymer materials are rapidly replacing more traditional materials such as metals, ceramics, and natural polymers such as wood, cotton, natural rubber etc. However, one weak aspect of synthetic polymer materials compared with other materials are combustible. Thus, the majority of polymer-containing end-products (e.g., cables, carpets, furniture cabinets, etc.) must have a satisfactory degree of fire resistance to ensure public safety from fire.
The experimental selection of high-temperature-vulcanized (HTV) silicone rubber as a polymer substrate, silicone composites were prepared by adding different proportions of inorganic fibers. The inorganic filler was thoroughly dispersed in silicone rubber by two-roll mill and double-drum mixing. This study focused on the influences of various fillers and additive level on the mechanical, thermal properties and combustion properties of silicone rubber.
Results from mechanical tests shown that HTV silicone rubber had a 28 % increase in tensile strength and a 6.2 % increase in maximum strain by adding 3 % carbon fiber and 18 % increase in Young’s modulus by adding 3 % basalt fiber; The anti-ablation tests shown that HTV silicone rubber added up to 5 % carbon fiber or basalt fiber had good heat resistance property, the composite withstand an hour under the flame; Results from combustion test also indicated show that of 5 % carbon fiber effectively reduce the peak heat release rate and smoke production on silicone rubber composites.
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