環氧樹脂因為其優良的性質而具有廣泛的應用範圍，如塗料、電絕緣材料、膠粘劑及複合材料基材等。但因其固化後質脆、抗衝擊性能較低，使其應用受到了一定的限制。
實驗中利用液態橡膠改質環氧樹脂發泡體主要分為兩部分；一個是在加工溫度為140℃時，使用雙酚A型環氧樹脂、液態橡膠與酸酐硬化劑、促進劑混合並熱壓成型；第二，使用雙酚A型環氧樹脂、液態橡膠與胺類硬化劑、混合並在不同溫度下(50℃、70℃、90℃)熱壓成型。 發泡體機械性質測試項目為抗折強度、最大形變量、材料反彈、衝擊強度。熱性質分析項目為TGA分析，並利用光學顯微鏡觀察樣品斷面結構。實驗發現，以環氧樹脂為主要基材加上液態橡膠(PHR17.65)、類胺基硬化劑(PHR35)、氫矽氧烷(PHR1)的發泡劑在50℃時所成型的發泡體，可以得到具有良好機械性質，且膨發良好的發泡材料

The applications of the epoxy have been expanded in various fields such as coatings, adhesives, electrical insulators, composites etc; however the cured epoxy is in the result of brittle and poor instant impact.
There are two major topics for ctbn-modified epoxy foams in this study. In the first step, we adopted bisphenol-a epoxy, which well-mixed with liquid rubber, curing agent of anhydride ,blowing agent and a catalyst of bdma at 140℃ to apply in compression molding. Second, we adopted bisphenol-a epoxy, which well-mixed with liquid rubber ,curing agent of amine and blowing agent of siloxane at various temperatures(50℃、70℃、90℃) to apply in compression molding.The mechanical properties test of foamed included flexural strength, elongation, break energy and material bounce. Thermal properties analysis was determined by Thermal Gravimetric Analysis (TGA).Specimen’s cross section structure had been inspected by the optical microscope. It was founded that the using epoxy resin starch as the main material with PHR17.65 of CTBN ,PHR 35 of curing agent(Amine)and PHR1 of blowing agent (Polysiloxane) cured and foamed under 50℃. we can obtain the well-foam with great mechanical properties.

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