epoxy clay carbon or diamond nanosystems

... n th nư c gi m d n t m u epoxy nguyên ch t, epoxy+ 1% tr ng lư ng 3.8 KH O SÁT ĂN MÒN C A MÀNG NANOCOMPOSITE nanoclay, epoxy+ 3% tr ng lư ng nanoclay sau epoxy+ 2% EPOXY/ CLAY Hình 3.12 Đư ng cong ... nanocomposite epoxy/ clay v i hàm lư ng nanoclay khác nhau: (a) 1% tr ng lư ng nanoclay (b) 2% tr ng lư ng nanoclay (c) (d) Hình 3.2 Ph nhi u x tia X c a: (a) B t nanoclay (b) Nanocomposite epoxy 1% ... t h epoxy/ nanoclay, th i gian siêu silan ñã xen vào gi a l p clay làm tăng kho ng cách b n gi a âm thích h p gi l p clay 3.2 KH O SÁT S PHÂN TÁN NANOCLAY TRONG NH A 3.3 KH O SÁT B EPOXY/ CLAY...

Ngày tải lên: 31/12/2013, 10:05

... those that do not, suffer for not having one, having to pay more for the money they borrow.     There are three major rating agencies, Moody’s, Standard and Poor’s (S&P) and Fitch. They all  have similar rating categories, which reflect the likelihood of a bond defaulting or the rating  ... index), Barclays (1%) and HSBC (0.8%). The securitized or asset backed sector 29  and industrial sector  is even more broadly based with no issuers holding more than 0.4% of the index. The utility sector  ...  Claire Woods “Funding Climate Change: how pension fund fiduciary duty masks trustee inertia and  short‐termism” http://www.geog.ox.ac.uk/research/transformations/wpapers/wpg09‐13.html  23      Green or Low Carbon Bonds  4.1 History  The major issuers in the green bond arena are the World Bank and the EIB with additional ...

Ngày tải lên: 06/03/2014, 08:20

... W/mK, which corresponds to the upper bound of the highest values reported for single-walled carbon nanotube bundles [9], high electrical conductivity of up to 6,000 S/cm [10], and superior mechanical ... Competing interests The authors declare that they have no competing interests Authors' contributions The work presented here was carried out in collaboration between all authors MMG carried out the ... Popov VN: Theoretical evidence T1/2 specific behavior in carbon nanotube systems Carbon 2004, 42:991-995 21 Li Q, Liu C, Wang X, Fan S: Measuring the thermal conductivity of individual carbon nanotubes...

Ngày tải lên: 20/06/2014, 23:20

... created in forward scratching is more or larger than that of the backward direction The relationship between the groove size and the scratch parameters including applied normal force, number ... different normal forces are given in Figure 2a, b at both low-force regime (from approximately to 10 μN) and highforce regime (from approximately 10 to 20 μN), respectively The scratch was performed ... is 0.99 for d and 0.88 for Wf, which indicate that the power-law correlation fitting the depth data perfectly, and there is a 12% deviation for the width data Using a DLC-coated tip, more complex...

Ngày tải lên: 21/06/2014, 00:20

... Networks Program research grant (FH and DK) We also thank Albermarle for the hardener, Hexion Specialty Chemicals for the epoxy resin, and Applied Sciences for providing their facilities Author ... transport properties and microstructure of carbon nanofiber /epoxy composites Compos Sci Technol 2008, 68:410 Patton RD Jr, Pittman CU, Wang L, Hill JR: Vapor grown carbon fiber composites with epoxy ... well-distributed clusters is more important for the electrical properties, which is in agreement with the experimental results of [13] for MWCNT/polymer composites These results provide important insights...

Ngày tải lên: 21/06/2014, 03:20

... Angus, Diamond- like hydrocarbon and carbon films, In Diamond and diamond like films and coatings, p173, NewYork, (1991) [2] Y Catherine, Preparation techniques for diamond- like carbon, In Diamond ... techniques for diamond- like carbon, In Diamond and diamond like films and coatings, p193, NewYork (1991) [3] Y Lifshitz, Diamond- like carbon- present status, Diamond and Related Materials (1999)1659-1676 ... air, this layer absorbs the moisture and becomes a good lubricant With time, more moisture was absorbed leading to a decrease of coefficient of friction However, after a short time this layer...

Ngày tải lên: 22/07/2014, 03:20

... current year twig with a 4L portable photosynthesis chamber LiCor 200 (LiCor, Lincoln, Nebraska, USA), around midday (between 12 h 30 and 14 h 00 local Origin of carbon for defense reactions in Scot ... purified according to [8, 14] 200 mg of lyophilized powder was suspended with mL of a ternary mixture (methanol/chloroform/water; 12/5/3) for 30 at ambient temperature, centrifuged for 10 at 000 ... to take into account that storage compounds were probably not uniformly labeled, and that recently stored (and also more readily available compounds) were probably more labeled than what was measured...

Ngày tải lên: 07/08/2014, 16:21

... prior to the gas exchange measurements by means of a portable area meter (Licor on a 3000, Li-Cor, Lincoln, NE, USA) Carbon isotopic composition Carbon isotopic composition was determined on leaf ... leaf ageing on gas exchange parame- ters A and g were highest for leaf order between and All gas exchange data reported hereafter correspond to measurements made within that zone of the trees which, ... constraints were Carbon dioxide assimilation rate (A, μmol m -2 -2 -1 rate (E, mmol m s and ) leaf conductance for water vapor (g, mmol m -2 ) -1 s were measured using a LI-6200 portable photosynthesis...

Ngày tải lên: 08/08/2014, 23:22

Ngày tải lên: 13/11/2014, 16:09

... Summary of SWCNT buckling under torsion 29 Table 1.5: Summary of DWCNT buckling under torsion 31 Table 2.1: Parameters for original REBO interaction for carbon- carbon bond 45 Table 2.2: ... twist direction because the carbon- carbon bonds are asymmetrically arranged along the length and perimeter of SWCNT, and the force deformation relation of carbon- carbon bond is different under ... rotation Mcr Critical torsional buckling torque F Deformation gradient E Green Lagrangian strain tensor S Second Piola-Kirchhoff stress tensor P First Piola-Kirchhoff stress tensor xxviii Chapter...

Ngày tải lên: 09/09/2015, 11:19

... thử composite dạng băng tẩm carbon /epoxy glass /epoxy phương pháp thủ công 1.2.2 Đối tượng nghiên cứu đề tài - Vật liệu composite dạng băng tẩm carbon /epoxy glass /epoxy - Thiết bị tạo mẫu thử ... nhiều nhóm 1,2 -epoxy phân tử polymer Nhựa epoxy nhóm ester, khả kháng nước epoxy tốt Ngoài ra, có hai vòng thơm vị trí trung tâm nên nhựa epoxy chịu ứng suất nhiệt tốt mạch thẳng epoxy cứng, dai ... thấm nhựa polymer (epoxy) bảo quản môi trường nhiệt độ thấp (khoảng -190C – -220C) Vật liệu sử dụng lớp nhựa/sợi hay dạng băng tẩm Trong đó, dạng băng tẩm từ carbon /epoxy glass /epoxy phổ biến chế...

Ngày tải lên: 15/10/2015, 16:39

... bonds • structurally they are amorphous in nature with sp2 and sp3 bonded carbon atoms SP3 – Diamond, SP2 - Graphite DLC is a metastable form of amorphous carbon, with or without hydrogen, which contains ... bonded carbon atoms DLC has similar properties of diamond, but these are achieved by the isotropic thin films with no grain boundaries Carbon- Hydrogen alloys ta-C – Tetrahedral amorphous carbon ... laser deposition Deposition techniques Deposition mechanism • Diamond like carbon deposition takes place with optimum ion ( carbon or hydrocarbon ions) energy bombardment ~ 100 eV • SP3 fraction and...

Ngày tải lên: 01/12/2015, 22:42

... Keep power in your pocket (e.g. attorney, credible reference) Keep the door open Conflict as a Choice Point  Explore whether conflict is a signal for  a change  View the disagreement as a choice  point and explore options for moving  ... Pause when formulating  judgment   Understand what was meant by  actions or words  Reflect on information and ask  for additional information  Reinterpret by applying an  alternate explanation  Redirect conversation toward  ... Dismissive – interrupting, talking over, ignoring  {men engage more frequently than women} • Exclusionary – leaving someone out of the  meeting, discussion or social gathering • Undermining – going behind the back of others or using insults to discredit arguments...

Ngày tải lên: 22/08/2012, 22:07

... make digital/hard copy of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage, the ... the store’s responses In the software shopping domain, Shopbot was given the home pages for 12 online software vendors Shopbot learned to extract product information from each of the stores, ... in Information Retrieval (Copenhagen, Denmark), June 12, 1992, pp 318–329 Doorenbos, R.B Etzioni, O and Weld, D.S A scalable comparison-shopping agent for the world-wide web Technical Report 96–01–03,...

Ngày tải lên: 31/08/2012, 16:47

... đáng kể 2.2 Chất kết dính : Chất kết dính phần lớn epoxy hai thành phần trộn với cốt liệu Cờng độ kéo 30 MPa vợt bê tông gấp 10 lần Chất kết dính epoxy có độ co ngót biến dạng mỏi thấp, nh sức đề ... cờng độ bám dính đợc phát triển Vật liệu 2.1 Tấm polime cốt sợi các-bon (PCSC) : Tấm có cấu trúc Epoxy cấu trúc sợi sợi các-bon đặt chủ yếu theo chiều dọc, sợi ngang hơn, dệt vuông Tấm PCSC thơng ... chứa 60 - 70% (theo thể tích) sợi các-bon với đờng kính khoảng 8àm đợc rải theo hớng định thảm epoxy Sợi các-bon có mô-đun đàn hồi 240 - 900 MPa cờng độ kéo 2.000 - 7.000 MPa Tính chất học theo...

Ngày tải lên: 11/09/2012, 13:44

... Cd -CO~ CO3 Oxid COs Org Cu Org S Org Org S COs Ni Org/Res CO3 CO3 Org COs Sol/Res Pb Org/Res COs -Res Org Org Zn Org/Oxid/CO3 Org CO3 Oxid Org Org Note: COt carbonate;Org organicallybound;Oxid ... exchangeable and carbonates forms into organic bound fraction Baham and Spo:sito (1994) suggested that Pb facilitated the removal of dissolved organic carbon in sewage sludge through the adsorption of ... significant amount of organic matter and Cu has a high affinity to the organic matter, the extracted Cu in the exchangeable carbonates or oxid,~s fraction is likely readsorbed on the organic fraction...

Ngày tải lên: 23/09/2012, 14:47

... and carbonates, adsorption onto oxides and mineral surfaces and chemisorption or complexation with inorganic ligands The ratio of soluble/exchangeable metal to total metal content is therefore ... fixing of the free metal ions before it forms complexes with the organic matter in wastes Therefore it is more effective if the red mud is mixed with the wastes prior to the composting process The ... process The reason is the red mud cannot desorb the organic bound metals to form the inorganic complexes with these metals Although it cannot desorb the organic bound metals, red mud addition can...

Ngày tải lên: 23/09/2012, 14:48

... lunch for for '-9 {6} 16 untr /ieiman pair Minimal words a A27a Listen and repeat the words azzub You will hear five words from each minimal pair For each word write l for /e/ (sound 1) or for lal ... in th Thiscordwas in the sea short He wa 4/ I_ I ti He was short lt'sasmall H -z!rt It'sa small port fox forks Lookfor the fox -tA \-/' Port *-Z-=jy4:="a Lookfor the forks spot sPort I don'tliketnesespots ... sound Sports reportfrom Radio Station ANNOUNCER: morning Roarers This the football team arrived backfrom yorr LauraShortis our sportsreporter, she was at the airport and LAURA sHoRT:cood morning,...

Ngày tải lên: 03/10/2012, 15:20

... in order to reach the two viewing platforms There are now plans to build below the foundations of the tower These plans include the development of five underground levels that will incorporate ... facilities, a cinema and museum and two floors of underground parking Although details have yet to be finalised, the principle is that the five floors will be connected by two vertical passenger ... tower In addition, the floor immediately below the tower, which is planned to house the ticket office, will also consist of a large atrium with a glass ceiling so that visitors can look directly...

Ngày tải lên: 04/10/2012, 10:02

Ngày tải lên: 04/10/2012, 10:24