http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Haihua Zhan (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Liping Liang,Chenlu Wang,Hongfang Wang,Haihua Zhan,Xu Meng 한국섬유공학회 2018 Fibers and polymers Vol.19 No.9
The cotton fabric was modified with dopamine methacrylamide (DMA) based on mussel-inspired reaction and polymerized with zwitterionic sulfobetaine methacrylate (SBMA) through free radical polymerization reaction. The poly(DMA-SBMA) contained not only key chemical constituents of dopamine hydrochloride, which strongly adsorbed to fabric substrates, but also hydrophilic groups, providing a hydrophilic surface for fabric due to its strong interaction with water via electrostatic interactions. The chemical structure, surface topography, and surface wettability of the fabric were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and contact angle experiments, respectively. The results showed that the water contact angle (WCA) of the treated fabric was ~0 o, whereas the underwater oil contact angle (OCA) was ~161 o, as compared to ~25 o for the control one. It is expected that as-prepared fabrics could be applied in oil/water separation due to such special superhydrophilicity and superoleophobicity.
-
Defang Zhao,Lichao Yu,Weiwei Guo,Xu Meng,Yinjiang Zhang,Haihua Zhan,Jianhan Hong,Huaizhong Xu 한국섬유공학회 2022 Fibers and polymers Vol.23 No.4
This paper reports a detailed study on the long-term mechanical and dynamic mechanical performance of carbonfiber (CF) plain-woven fabric-reinforced epoxy (CF/epoxy) laminates fabricated by the hot-compression molding technique. Water-sorption experiments, mechanical property tests, and dynamic mechanical analysis (DMA) tests were performed afterimmersion in de-ionized water at different temperatures (i.e., 25 oC, 60 oC, and 80 oC) for times up to 120 days. The resultsshow that weight-gain curves for the composites at elevated temperature (i.e., 80 oC) fit the theoretical Fickian diffusion curveduring the initial immersion time, but deviate substantially as time prolongs. The flexural properties and dynamic mechanicalproperties are highly susceptible to the effects of the hygrothermal environment, and the performance for both degrade withincreasing exposure temperatures and durations. The dynamic mechanical properties partly recover after the dryingtreatment, which is caused by the irreversible degradation in the interfacial region (i.e., fiber/matrix debonding) as evidencedby morphological images from scanning electron microscopy (SEM). Finally, the long-term degradation of the compositeswas estimated and the service life of the materials was also predicted using the Arrhenius degradation theory. The outputs ofthe research show that CF/epoxy laminates have flexural strength retention of 60 % for more than 2 years at the annualtemperature of Kyoto.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
