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161 results on '"Liu, Liyue"'

5. Toughening of epoxy by nanostructures with ABA triblock copolymers: An influence of organosilicon modification of block copolymer

Author

Li, Lei, Peng, Wenjun, Liu, Liyue, and Zheng, Sixun

Subjects
Chemical research, Block copolymers -- Research, Engineering and manufacturing industries, Science and technology
Abstract

In this work, we investigated the effect of organosilicon modification of an ABA triblock copolymer on the morphologies, thermal properties, and fracture toughness of epoxy thermosets. First, a poly([epsilon]-caprolactone)-block- poly(butadiene) -block-poly([epsilon]-caprolactone) triblock copolymer was synthesized through the ring-opening polymerization of [epsilon]-caprolactone by using an [alpha],[omega]-dihydroxyl-terminated polybutadiene as the macromolecular initiator. Thereafter, the triblock was organosilicon-modified via the hydrosilylation of its midblock (viz. polybutadiene) with pentamethyldisiloxane. It was found that the organosilicon modification resulted in a switch of the nanostructure formation mechanism from reaction-induced microphase separation to self- assembly. As a consequence of the organosilicon modification, the morphological structures of the thermoset were significantly changed, and thus, the materials displayed different improvement in fracture toughness. In addition, the organosilicon modification further enhanced the surface hydrophobicity of the materials. KEYWORDS block copolymer, fracture toughness, nanostructure, reaction-induced microphase separation, self-assembly, thermosets, 1 | INTRODUCTION The use of block copolymers to modify thermosets has been demonstrated to be an effective strategy for improving the properties of materials. The improvement in properties is [...]

Published
2022
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40. Combined QTL and Genome Scan Analyses With the Help of 2b-RAD Identify Growth-Associated Genetic Markers in a New Fast-Growing Carp Strain

Author

Su, Shengyan, primary, Li, Hengde, additional, Du, Fukuan, additional, Zhang, Chengfeng, additional, Li, Xinyuan, additional, Jing, Xiaojun, additional, Liu, Liyue, additional, Li, Zhixun, additional, Yang, Xingli, additional, Xu, Pao, additional, Yuan, Xinhua, additional, Zhu, Jian, additional, and Bouzoualegh, Raouf, additional

Published
2018
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41. Enhanced performance of graphene transparent conductive films by introducing SiO2 bilayer antireflection nanostructure.

Author

Huang, Yue, Lin, Jiayi, Liu, Liyue, Lu, Qing, Zhang, Xiaoling, Zhang, Ganghua, and Li, Dezeng

Subjects
ANTIREFLECTIVE coatings, CHEMICAL vapor deposition, REFRACTIVE index
Abstract

The performance of graphene transparent conductive films (TCFs) can be greatly enhanced by introducing an antireflection (AR) nanostructure. We directly deposited graphene on silica nanosphere/acid-catalyzed silica layer (SNS/a-SL) AR nanostructure by assisted catalysis of Cu nanoparticles in ambient pressure chemical vapor deposition to obtain graphene composite TCFs. By introducing the SNS/a-SL AR nanostructure, the transmittance and sheet resistance of graphene TCFs achieved were 89.65% and 2.04 kΩ sq−1, respectively. Compared to graphene films, the transmittance was improved by 5.5% and sheet resistance was reduced by 0.44 kΩ sq−1. The SNS/a-SL AR nanostructure effectively reduced reflection from the substrates owing to the structure of gradient refractive index and exhibited good stability at high temperatures because of the existence of a-SL. The AR nanostructure also could provide more electronic transport channels to achieve regulation of the electrical property of graphene TCFs. This method simultaneously improves the transmittance and conductivity of graphene TCFs by a facile process, providing an important method to prepare graphene TCFs with excellent performance. [ABSTRACT FROM AUTHOR]

Published
2019
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48. Spring viraemia of carp virus induces autophagy for necessary viral replication

Author

Liu, Liyue, primary, Zhu, Bibo, additional, Wu, Shusheng, additional, Lin, Li, additional, Liu, Guangxin, additional, Zhou, Yang, additional, Wang, Weimin, additional, Asim, Muhammad, additional, Yuan, Junfa, additional, Li, Lijuan, additional, Wang, Min, additional, Lu, Yuanan, additional, Wang, Huanling, additional, Cao, Jianbo, additional, and Liu, Xueqin, additional

Published
2014
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49. The influence of the temperature in the organic modification of single walled carbon nanotubes

Author

Chen Changxin, Zhang Ya-fei, and Liu Liyue

Subjects
Materials science, chemistry.chemical_element, Infrared spectroscopy, Nanotechnology, Carbon nanotube, Crystal structure, law.invention, chemistry.chemical_compound, Nanoelectronics, chemistry, Chemical engineering, law, Functional group, X-ray crystallography, Fourier transform infrared spectroscopy, Carbon
Abstract

In this paper, a simple method to modify single walled carbon nanotubes (SWNTs) with ODA is introduced and the effect of reaction temperature is mainly researched. The FTIR spectrum and XRD were used to investigate the organic functional groups and crystal structure of carbon nanotube before and after modification. The mole percentages of ODA decorated on SWNTs to carbon atoms in SWNTs are calculated by weighing method. The results show that the temperature plays an important role in the modification process. The amount of organic functional group on the surface of SWNTs is increase with the temperature and the mole percentage of ODA/carbon atom is in range of 2.12 to 8.64%.

Published
2008

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