[...]... is intended for lens applications Density is 0.043 lb/in3 (11 90 kg/m3), light transmission is 92 to 93%, refractive index is 1. 49 to 1. 51, and haze is 0.3 to 0.5% Tensile and flexural strengths are 11 ,000 to 11 ,500 lb/in2 (76 to 79 MPa) and 16 ,10 0 to 18 ,10 0 lb/in2 (11 1 to 12 5 MPa), respectively; ultimate elongation is 4.3 to 8.8%; the flexural modulus is 470,000 to 480,000 lb/in2 (3240 to 3 310 MPa);... in/in/°F (0.0 01 m/m/K), the heat-deflection temperature at 264 lb/in2 (1. 82 MPa) is 2 21 F (10 5°C), the short-term dielectric strength for 0.0625-in (1. 5875-mm) thickness is 540 V/mil ( 21, 260 V/mm), and the dielectric constant at 1 MHz is 5.7 A 30% glass-reinforced grade has a specific gravity of 1. 46, a density of 0.053 lb/in 3 (14 67 kg/m 3 ), a tensile strength at break of 19 ,000 lb/in2 (13 1 MPa), a tensile... those of modified epoxies and the thermoset-elastomer types They are supplied as solvent dispersions in solution or in film form Conventional two -part liquid epoxy adhesives are brittle but can be toughened by incorporating a rubber phase Scotch-Weld DP-420 and DP-460, of 3M, are examples, and they are said to provide 10 times greater peel strength Three others—DP -1 0 5, DP -1 2 5, and DP -1 9 0— provide shear... lb/in2 (8.6 10 .3 MPa) to 4500–5000 lb/in2 ( 31 34.5 MPa), tensile elongations of 5 15 % to 12 5 17 5% and shear strengths of 12 50 15 00 lb/in2 (8.6 10 .3 MPa) to 3000–3500 lb/in2 Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw-Hill Companies All rights reserved Any use is subject to the Terms of Use as given at the website Materials, ... Saran F -1 2 0, of Dow Chemical Co., is a similar material Centrex polymers from Bayer Corp are acrylonitrile styrene acrylate (ASA), acrylonitrile-ethylene-propylene-styrene (AES), and ASA/AES resins All are noted for good resistance to weather aging in unpainted, outdoor applications ASA grades include medium-impact, low- or high-gloss types, and a high-impact, highgloss type AES grades include high-impact,... developed by the Air Force for bonding stainless steel to resist heat to 15 00°F ( 816 °C) is made with a porcelain enamel frit, iron oxide, and stainless-steel powder It is applied to both parts and fired at 17 50°F (954°C), giving a shear strength of 1, 500 lb/in2 (10 MPa) in the bond But ceramic cements that require firing are generally classified with ordinary adhesives Wash-away adhesives are used for... oils, but activated carbon may also be used in conjunction with clays to adsorb color bodies not removed by the clay Granular adsorbents are employed as filter beds, but powdered adsorbents are stirred into the liquid and are usually more Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw-Hill Companies All rights reserved Any use is... abundant seaweed Gracilaria confervoides Commercial agar is colorless, yellowish, or pink to black It is marketed in strips, blocks, or shredded, and is obtained by boiling the dry seaweed and straining out the insoluble matter AGAR-AGAR Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw-Hill Companies All rights reserved Any use is... general-purpose, electrically or thermally conductive, ultraviolet-curable, impactresistant, low- or high-temperature, or fast-curing formulations Amicon adhesives, also from Emerson & Cuming, are epoxy products for surface-mount applications Plastilock 731SI, from SIA Adhesives, is a two -part epoxy capable of bonding to urethane structural reaction-injection molded components Hexcel Corp.’s Redux 610 ... break of 3 .1% , a tensile modulus of 1, 200,000 lb/in2 (8274 MPa), a flexural modulus of 1, 050,000 lb/in2 (7240 MPa), and a notched Izod impact strength of 2.6 ft.lb/in (13 9 J/m) The coefficient of linear thermal expansion at 77 to 13 1°F (25 to 55°C) is 0.00 01 in/in/°F (0.0002 m/m/K), the heat-deflection temperature at 264 lb/in 2 is 425°F Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) . include high-impact, low- or medium-gloss grades suitable for coextrusion over ABS or PVC substrates. ASA/AES grades are medium-impact, low-gloss or high-impact, high- gloss grades, most of which are. are noted for good resistance to weather aging in unpainted, outdoor applications. ASA grades include medium-impact, low- or high-gloss types, and a high-impact, high- gloss type. AES grades. that sub- 16 ACTIVATED CHARCOAL Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw-Hill Companies. All rights reserved. Any