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Cracking environmental

Jianrong Zhang and Susheng Xue, Function of Catalysts in Recycling Fuel Oil and Chemical Products from Waste Plastics by Thermal Cracking, Environmental Science Trends, 3, 21-23 (1999). [Pg.756]

In order to differentiate more precisely, we must distinguish between stress-crack formation in a vacuum and stress-crack formation in air, and environmental and media assisted stress-cracking in the presence of liquid or gaseous media. For true , media assisted stress-cracking ( environmental assisted stress cracking (ESC)), simultaneous loading and the presence of a (crack)initiating medium are required [193],... [Pg.692]

Elastin reservoir molding Copolymer from styrene and butadiene, polymerized in emulsion Environmental stress cracking Environmental stress cracking resistance Epoxidized soy bean oil (DIN, ISO) Ethylene poly sulfide Ethylene chlorohydrine 2-chloroethanol Copolymer of ethylene and tetrafluor-oethylene (ASTM)... [Pg.2252]

For environmental reasons, burning should be smokeless. Long-chain and unsaturated hydrocarbons crack in the flame producing soot. Steam injection helps to produce clean burning by eliminating carbon through the water gas reaction. The quantity of steam required can be as high as 0.05—0.3 kg steam per kg of gas burned. A multijet flare can also be used in which the gas bums from a number of small nozzles parallel to radiant refractory rods which provide a hot surface catalytic effect to aid combustion. [Pg.59]

MSTM D1693, ed. Test Methodfor Environmental Stress-Cracking of Ethylene Plastics, Vol. 8.01, ASTM, Philadelphia, Pa., 1988. [Pg.160]

ISO 4599, Plastics Determination of Resistance to Environmental Stress-Cracking, Pent Strip Method, ISO, Geneva, Swit2edand, 1986. [Pg.160]

Resistance to Chemical Environments and Solubility. As a rule, amorphous plastics are susceptible, to various degrees, to cracking by certain chemical environments when the plastic material is placed under stress. The phenomenon is referred to as environmental stress cracking (ESC) and the resistance of the polymer to failure by this mode is known as environmental stress cracking resistance (ESCR). The tendency of a polymer to undergo ESC depends on several factors, the most important of which are appHed stress, temperature, and the concentration of the aggressive species. [Pg.467]

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See also in sourсe #XX -- [ Pg.122 , Pg.123 , Pg.124 ]



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Environmental-Assisted Fatigue Crack Propagation in

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Environmentally Induced Cracking (EIC)

Environmentally assisted cracking

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Testing for Environmentally Assisted Cracking (EAC)

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