CAJ | 학술논문

以双酚A型固态和液态环氧树脂按比例得到混合树脂，用微米级α-Al2O3改性制得GIS用氧化铝改性环氧浇注材料，并对其进行热学与力学性能研究。结果表明：环氧浇注材料随着升温速度的增大，玻璃化转变温度上升，常温下拉伸速度为10 mm/min时，试样的拉伸强度和弯曲强度分别为70.6 MPa和95.8 MPa，储能模量达到14263.1 MPa；在25~100℃，试样的拉伸强度、弯曲强度和冲击强度较稳定，冲击断面起伏大，为脆性断裂。当温度高于Tg时，试样的冲击强度显著增大，呈塑性断裂，断面较平整，材料的储能模量与损耗模量下降了2个数量级。
이쌍분A형고태화액태배양수지안비례득도혼합수지，용미미급α-Al2O3개성제득GIS용양화려개성배양요주재료，병대기진행열학여역학성능연구。결과표명：배양요주재료수착승온속도적증대，파리화전변온도상승，상온하랍신속도위10 mm/min시，시양적랍신강도화만곡강도분별위70.6 MPa화95.8 MPa，저능모량체도14263.1 MPa；재25~100℃，시양적랍신강도、만곡강도화충격강도교은정，충격단면기복대，위취성단렬。당온도고우Tg시，시양적충격강도현저증대，정소성단렬，단면교평정，재료적저능모량여손모모량하강료2개수량급。
The epoxy casting materials modified by aluminum oxide for GIS was prepared from bisphe-nol A solid and liquid mix epoxy resin and micro α-Al2O3, and their thermal and mechanical properties were studied. The results show that with the increase of heating rate, the glass transition temperature of the epoxy casting materials increase. The tensile strength and flexural strength are 70.6 MPa and 95.8 MPa at room temperature under the tensile rate of 10 mm/min, and the storage modulus is 14 263.1 MPa. In the range of 25 ℃ to 100 ℃, the tensile strength, flexural strength, and impact strength are stable. The samples show brittle fracture and the impact fracture surface is rough. When the temperature is higher than Tg, the impact strength increases significantly, and the samples show plastic fracture and the impact fracture surface is flat, and the storage modulus and loss modulus decrease by two orders of magnitude.