화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 고분자구조 및 물성
제목 the enhancement of mechanical strength and specific gravity of silicone foam filled with poly tannic acid
초록 Silicone foams with poly(TA) were prepared and characterized in terms of morphological, mechanical properties, and specific gravity. SEM, EDS and TGA methods were applied to analyze the synthesized silicone foams systematically. An addition of high content (2 wt.%) of poly(TA) contributed the increase in expansion ratio and reduction of specific gravity of the silicone foam. In addition, an enhancement of Young’s modulus and tensile strength was accomplished by addition of poly(TA). This work demonstrates that the reason for is the chemical reaction formed between plenty hydroxyl functional groups in the poly(TA) and the hydride-terminated polydimethylsiloxane (PDMS). The quantity of the hydroxy-terminated PDMS was decreased on account of the added hydroxyl group of poly(TA). Hence, vinyl-terminated PDMS could be readily crosslinked with hydride-terminated PDMS. As a consequence, the mechanical properties could be sustained with the reduction of specific density.
저자 정현우1, 심상은2
소속 1인하대, 2화학공학융합학과 스마트에너지 소재 및 공정 교육 연구단
키워드 silicone foam; tannic acid
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