http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Effect of Nanoparticle Size on the Interface Bond Energy in KTa0.5Nb0.5O3 / Polyimide Composites
Chuntian Chen,Juan Wang,Wenlong Yang,Xiaokang Li,Jingyun Zhang 보안공학연구지원센터 2014 International Journal of Hybrid Information Techno Vol.7 No.6
The effects of particle size on the interface bond energy in KTa0.5Nb0.5O3/ polyimide composites were investigated using the molecular dynamics method. The composites of polyimide and the KTa0.5Nb0.5O3 nanoparticles with different size (0.4 nm, 0.5 nm, 0.6 nm, 0.8 nm, 1.2 nm, and 1.4 nm) have been established and simulated using the Forcite program package of Materials Studio software. The calculated results show that the interface bond energy is 38~150 Kcal/mol, which indicate the Van der Waals force exist between the nanoparticle and polyimide matrix. The interface bond energy of the smaller nanoparticle is greater than the lager nanaparticle due to the size effect. The introduction of the smaller nanoparticle could generate the stronger intermolecular bonding interaction between the nanoparticle and polyimide matrix.
Henan Li,Nan Jiang,Rui Cheng,Chuntian Zhang,Hongxiang Han 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.2
The subgenus Epicterodes Wehrli, 1933 of Arichanna Moore, 1868 is reviewed. Six species are recognized, of which, A. (E). denticularia sp. nov. is described as new to science from China. One new synonym is established based on morphological and genetic similarity: A. (E.) flavomacularia Leech, 1897 (=A. (E.) perimelaina Wehrli, 1933 syn. nov.). Results of DNA barcoding for Epicterodes are briefly discussed. Diagnoses for all the species are provided and illustrations of adults, genitalia and distribution map are presented.
Effect of Anhydride Grafting Agent on Trap Levels of Low-Density Polyethylene
Lijuan He,Zhenhua Yuan,Xiong Yang,Huiqing Niu,Chao Zhu,Dawei Li,Lei Zhao,Chuntian Chen 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.5
Trap distribution of the low-density polyethylene(LDPE) modified by anhydride grafting agent was studied and the effect of grafting agent on the trap levels was analyzed by the method of Photo-stimulated Discharge in this paper. Different concentrations and types of same concentration of LDPE modified by anhydride grafting agent were measured by using continuous UV scanning. The results showed that different concentrations and types of grafting agent had effect on trap levels distribution of LDPE. The trap depth would decrease with the anhydride grafting agent content increasing and increase with its damaged condition increasing when anhydride grafting agent was destroyed. Anhydride grafting agent are widely applied to the production and research of high pressure insulating polyethylene materials. The purpose of this paper is to elaborate the effect of anhydride grafting agent on the insulating properties of polyethylene material and explain the strongest binding capacity of anhydride grafting agent to space charge.