thermoplastic elastomers in industrial applications

... Polyaniline Fiber 127 Hsing-Lin Wang, Benjamin R Mattes, Yuntian Zhu, James A Valdez Electrically Conductive Polyaniline Fibers Prepared by Dry-Wet Spinning Benjamin R Mattes, Hsing-Lin Wang, ... improving economic benefits For instance, co-continuous phase technology in the preparation of con-ductive composite materials and co-injection molding techniques in forming finished articles are introduced ... Columbus, Ohio, 43210-1106 INTRODUCTION In 1977, the first intrinsic electrically conducting organic polymer, doped polyacetylene, was reported,1spurring interest in “conducting polymers.” These polymers...

Ngày tải lên: 10/08/2014, 11:22

... structure, the interchain hydrogen bonding, and the charge delocalization effects Emeraldine salts are known to dissolve only in certain amines, and hydrogen bonding solvents, in particular in strong ... ordering along the c-axis Coupled with this are gradual increases in the scattering intensity in the vicinity of 4o, 7o, 27oat 30o(and denoted by arrows in Figure 5) Hence there are slow changes in ... crystallized Melting point depression of resorcinol is observed suggesting interaction between the com-ponents (Figure 3) Pure resorcinol crystallizes at about 115°C and the melting point is depressed...

Ngày tải lên: 10/08/2014, 11:22

... oven The heating rate was 2oC/min The morphology of the composites was determined using optical microscopy and the transmission mode was used Thin sections of 1µm in thickness were ob-tained by a ... localized in the HDPE phase, the CB volume fraction in the HDPE phase increases when the PVDF/HDPE volume ratio increases, resulting in a large increase in elec-trical conductivity There is no doubt ... shown in Figure 2, the best fit was obtained withΦc= 0.037 from the slope and the intercept of the straight line, the values of t andσowere determined to be 2.75 and 93.3, respectively The linear...

Ngày tải lên: 10/08/2014, 11:22

... black, G' becomes increasingly dependent on strain amplitude as the carbon black loading increases At the low strain limit (about 0.5% strain) G' is at a maximum and independent of strain Both the ... concurrent with G' measurements (using the RMS custom plates) as a function of strain amplitude In Figure 4, the resistivity increases and G' decreases with increasing strain amplitude for the unmodified ... G'(low strain) and resistivity Increased strain amplitude or temperature results in decreased G'(low strain) and increased resistivity This correlation supports the theory that the strain de-pendence...

Ngày tải lên: 10/08/2014, 11:22

... during plasma etching is due to the charging of the insulating resist layer In SEM metrology of devices and masks using a conventional insulating resist, charging of the resist yields errors in ... = (C (in) - C (out) )/C (in) or C(in) concentration of reactant IN C(out) concentration of reactant OUT For a PFR operated in single pass mode, and assuming first order mass controlled kinet-ics, ... The sandwich configuration was again a more efficient cell design Interestingly, fractional conversion in-creased with decreasing residence time, or increasing flow rate, due to enhanced electrolyte...

Ngày tải lên: 10/08/2014, 11:22

... correlated with strong intra- and inter-chain hydrogen bonding between secondary amine and tertiary imine groups found in the polymer repeat units We previously reported that certain amine additives, ... presented INTRODUCTION Polyaniline has emerged as one of the most promising conducting polymers for industrial ap-plications due to its combination of low cost and high environmental stability The main ... as shown in Figure 1(a) A thin EB film was ob-tained by spin casting the concentrated EB solution with HMPI on top of a quartz plate, and subsequently immersing it in H2O for 1 hour and in CH3OH...

Ngày tải lên: 10/08/2014, 11:22

... under “engineering” or “compliance” levels The key features of testing just described are summarized in Figure 1 SHIELDING MATERIALS SHIELDING ADDITIVES Metallic substances including stainless steel, ... Trang 8composites for shielding applications Numerous commercial citings of both EMI additivesin injection molded applications are found in published literature, including trade journals and promotional ... varying weight percents in polycarbonate Specimens are injection molded "doughnut" shapes of five-inch diameter by 0.125 inch thick CONCLUSIONS Note the physical changes, including increased...

Ngày tải lên: 10/08/2014, 11:22

... point This current generates heat and the heat degrades PPy at the point Therefore, insulated polymer stops current flow and prevents the capacitor from short-circuiting In fact, the decrease in ... the difference in the healing ability MnO2is known that it is decomposed to insulating Mn2O3at over 520oC However, this tem-perature is much higher than that of PPy Its insulating temtem-perature ... PIB) in an appropriate solvent such as N-methylpyrrolidinone In cases where the conductive poly-mer was soluble, films were spin-coated from xylene or chloroform solutions In some cases, a thin...

Ngày tải lên: 10/08/2014, 11:22

... more understanding of the corrosion and pitting mechanisms Preliminary inert gas aeration results indicate oxygen is not a factor in. .. describing studies of the corrosion inhibiting properties ... conducting polymers A recent review appeared in 1997.2 In this report we describe ongoing work in our laboratory involving several strategies for addressing the processibility issue Preliminary ... electrostatic paint- ing can be summarized as fol- lows. A significant reduction in base coat and clear coat us- age is seen when one changes from traditional painting to electrostatic painting ordinary...

Ngày tải lên: 10/08/2014, 11:22

... adhesion to aluminum using the tape pull-off test Thin films prepared by spin coating techniques will also be evaluated These substrate/film interfaces are currently being probed using EIS and the ... describes new thermoplastic composites for injection molding, containing CB or CB/CF in relation to their electrical and mechanical behavior, as compared to the exist-ing CB filled thermoplastic ... damage during storage and shipping The Electronic Industry Association (EIA) clas-sifies packaging materials according to their surface resistivity as being either conductive, dissipative, or insulative...

Ngày tải lên: 10/08/2014, 11:22

... inher-ent in the rubbing technique, which is used commercially at present In the present work we intend to eliminate the Indium, Tin Oxide (ITO) electrodes by utilizing dopable conduct-ing polymers as ... conceived does away with the in-dividual components used in the normal combination packaging of integrated circuits Physical cushioning is provided by the air channels surrounding the product Moisture ... PACKAGING SYSTEMSHRINK PACKAGING Shrink films are usually thin biaxially oriented films which shrink back to the size when ex-posed to relatively high temperatures They can provide 40% - 50% shrink...

Ngày tải lên: 10/08/2014, 11:22

... temperature combination 82oC/293oC, the injection pressure increases by no more than 10% from the minimum over injection times ranging from about 0.4 to 2.8 sec The corresponding process window for ... saving engineering time and cost Trang 6In recent years, the use of FEA for the design of elastomeric products has increased sub-stantially Most applications of elastomeric gaskets, including ... short for cooling to occur, and (b) Increase of injection pressure with fill time at longer fill times due to cooling in the mold.1 The melt temperature has a much greater influence on injection...

Ngày tải lên: 10/08/2014, 11:22

... propene In addition, the smother operation reduces the coking process in the crackers, resulting in a slight decrease of required cracker cleaning steps in a given interval Temperature Control in ... Applicationsin Industrial Automation and Process Control Constantin von Altrock, M Sc E E., M O R., Inform Software Corporation, 2001 Midwest Rd., Oak Brook, IL60521, www.inform-ac.com, hotline@inform-ac.com, ... value of thesample data set used for training Figure 17 shows the NeuroFuzzy Module during training Figure 17: fuzzyTECH NeuroFuzzy Module training Within two days of implementation work we generated...

Ngày tải lên: 13/12/2013, 01:15

... the increase in interlayer spacing from 10 to 15.1 Å At high temperature (200 oC), in the presence of excess ε-caprolactam, the clay so modified can be swollen again, allowing the ring opening ... stacking in agglomerated tactoids Dispersion of the tactoids into discrete monolayers is further hindered by the intrinsic incompatibility of hydrophilic layered silicates and hydrophobic engineering ... organoclays is determined by their nature, including the catalytic effect on the curing reaction, the miscibility with the curing agent, etc Since there is a curing competition between intragallery and...

Ngày tải lên: 26/06/2014, 23:21

... models  Significantly decrease carageenan, histamine, serotonin and bradykinin induced acute and chronic rat paw edema  Inhibits bradykinin-induced inflammation. and decreases nitric oxide production ... car-otenoids in trace amounts[20,21] Tirimanna identified and isolated b-carotene, cryptoxanthin, lutein (2), zeaxanthin (3), and methyl bixin (4) in addition to bixin and nor-bixin (5) from seeds by thin ... plant[4,6,14] Keeping inview the tremendous interest in this dye containing plant, we herein summarize up-to-date information on the phytochem-istry, and biological activities of annatto Finally this...

Ngày tải lên: 13/01/2020, 07:47

... Models - Range Bounding • Exact range bounding of the interval polynomials – NP hard • Direct evaluation of the interval polynomials – inefficient • Focus on bounding the dominant part (1st and ... interval Θ (0) ˆ • Establish φ, the upper bound on global minimum using p2 local minimizations • Iterate: for subinterval Θ(k) Compute Taylor models of the states using VSPODE, and then obtain ... constraint propagation procedure is used to reduce the incompatible parameter domain • This approach can be combined with the interval-Newton method (Lin and Stadtherr, 2005) – True global optimum instead...

Ngày tải lên: 12/01/2014, 22:03

... Models - Range Bounding • Exact range bounding of the interval polynomials – NP hard • Direct evaluation of the interval polynomials – inefficient • Focus on bounding the dominant part (1st and ... interval Θ (0) ˆ • Establish φ, the upper bound on global minimum using p2 local minimizations • Iterate: for subinterval Θ(k) Compute Taylor models of the states using VSPODE, and then obtain ... constraint propagation procedure is used to reduce the incompatible parameter domain • This approach can be combined with the interval-Newton method (Lin and Stadtherr, 2005) – True global optimum instead...

Ngày tải lên: 12/01/2014, 22:16

... definition of an “investigational medicinal product” (IMP) is linked to (a) the definition of a “medicinal product”, (b) the intended use of a medicinal product and (c) the definition of a “clinical ... common understanding of the definition of an investigational medicinal product This document presents a definition of investigational medicinal products and non-investigational medicinal products ... status of the medicinal products involved may vary in different Member States For instance, a MA may include a particular indication in one Member State and not in others Moreover, in some specific...

Ngày tải lên: 23/03/2014, 10:20

... running rats down mazes, not with what we everyday—reading all kinds of things The study of thinking started with puzzles of various kinds, not with the kind of inferences that are made in reading ... mechanisms assumed to be involved in elaborating and maintaining coherence in situation models (chapter 4), and I emphasize the importance of determining how top-down processes interact with more bottom-up ... cognitive processing system in which working memory is a crucial structure in that it determines the number of elements the reader can retain in order to maintain coherence while processing a text...

Ngày tải lên: 24/03/2014, 02:20

... popular in UK? - Chart or graph prove it popular - Explain how love UK people feel in football - Find out football culture in UK - History or achievement of football in UK - Plan of UK football in ... bắt bóng cho vào rổ inbound: bóng sân starting at centre: vị trí trung phong starting point guard: hậu vệ kiểm soát bóng starting shooting guard: hậu vệ chuyên ghi điểm 3point from the corner: ... was invented in December 1891 by the Canadian clergyman, educator, and physician James Naismith Professional games are 48 minutes long, divided into quarters; college games, 40 minutes, played in...

Ngày tải lên: 22/05/2014, 22:13