臺灣博碩士論文加值系統

　　本研究為將不飽和聚酯樹脂（Unsaturated Polyester resin; UPRs）和Modified acrylic unsaturated polyester resin（簡稱：Modar）混煉分散加工後，以DSC（Differential Scanning Calorimetry）模擬UPRs、Modar及UPRs/Modar摻合物系之硬化反應行為，計算、預估各樹脂系統之硬化速率、硬化溫度、轉化程度，以期求得適合樹脂模造的最佳加工參數。以及經由動態力學分析（DMA）探討UPRs與Modar網目之聚集狀態（Aggregate Structure），藉由掃描式電子顯微鏡（SEM）觀察UPRs/Modar結構物之破壞斷面，考察摻合物之相容性。再經由熱重量損失分析（TGA）探討UPRs/Modar IPN之熱裂解，而由氧指數（OI）探討耐燃性質之變化，並經Non flaming程序之煙密度測定，分析燃燒時產生之發煙量。使用TGA探討UPRs/Modar摻合系之熱裂解行為，經由NBS之Smoke density分析發煙量。另一方面，對於燃燒所產生氣體之分析及熱釋放率（Heat Release Rate; HRR），則使用自行組裝之Cone Calorimetry動態燃燒偵測系統測定，在模擬火場溫度之579℃情形下，探討UPRs/Modar IPN系統料一氧化碳（CO）之濃度及HRR之變化。合成改質的方式，在不飽和聚酯分子鏈中導入新的單體二環戊二烯（dicyclopentadiene；簡稱DCPD），在DSC（Differential Scanning Calorimetry）及Cone-plate Rhometer的實驗，預測樹脂之硬化行為。在Non flaming程序之煙密度測定，及使用Cone Calorimetry動態燃燒偵測系統，探討燃燒行為。

　　This study is interested in using Differential Scanning Calorimetry (DSC) to examine and simulate the behavior of cure reaction, to calculate and estimate the cure reaction rate, cure temperature, extent of cure conversion and the variance of glass transition temperature (Tg) with various degree of cure achieved of UPRs/Modar blends that expect to find the best mold process parameter. In order to understand miscibility of UPRs/Modar blends after cured. We used Dynamic Mechanical Analysis (DMA) to approached the Network Aggregate structure and used Scanning Electron Microscopy (SEM) to observe the fractured surfaces of UPRs/Modar blends. On the other hand, the behavior of thermal decomposition of UPRs/Modar blends were studied using Thermal Gravity Analysis (TGA). The combustibility analysis was carried out using NBS smoke density test to study smoke evolution. On the other hand, for analysis of CO gas and Heat Release Rate (HRR) on the combustion procedure, using Cone Calorimetry Dynamic Flammability Evaluation System under 579℃ to research emission of CO gas and variance of HRR of UPRs/Modar blends. The modified unsaturated polyester used synthetic method that reaction with dicyclopenetadiene. The reaction temperature of modified DCPD unsaturated polyester forecast by estimation of the DSC-dynamic scanning. The flame-resistant properties of modified DCPD unsaturated polyester can by using NBS smoke density test under non-flaming process and using Cone Calorimetry Dynamic Flammability Evaluation System.