Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 10.14, Problem 96AAP
To determine
The general reaction for the polymerization of a vinylidene polymer.
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sketch the generalized stress-strain curve for a semi-crystalline thermoplastic polymer.
( B ) A stress of 6.7 MPa is employed to one type of a polymer under constant strain . After 40 days at 20 ° C the stress is reduced to only 8.4 MPa . When the same polymer is heated to 40 ° C the relaxation time is 40 days . 1- Calculate the relaxation time constant for this material at 25 ° C ? 2- Estimate the stress after 50 days at 25 ° C ? 3- Estimate the stress relaxation activation energy for the same polymer .
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Chapter 10 Solutions
Foundations of Materials Science and Engineering
Ch. 10.14 - Define and differentiate polymers, plastics, and...Ch. 10.14 - (a) Describe the atomic structural arrangement of...Ch. 10.14 - What is a pendant atom or group of atoms?Ch. 10.14 - (a)What type of bonding exists within the...Ch. 10.14 - Prob. 5KCPCh. 10.14 - Prob. 6KCPCh. 10.14 - Prob. 7KCPCh. 10.14 - (a) What is the repeating chemical unit of a...Ch. 10.14 - What are the three major reactions that occur...Ch. 10.14 - Prob. 10KCP
Ch. 10.14 - (a) Why must one consider the average degree of...Ch. 10.14 - Prob. 12KCPCh. 10.14 - Write structural formulas for the mers of the...Ch. 10.14 - Prob. 14KCPCh. 10.14 - Prob. 15KCPCh. 10.14 - Prob. 16KCPCh. 10.14 - Define stepwise polymerization of linear polymers....Ch. 10.14 - What are three basic raw materials used to produce...Ch. 10.14 - Describe and illustrate the following...Ch. 10.14 - Prob. 20KCPCh. 10.14 - Prob. 21KCPCh. 10.14 - Prob. 22KCPCh. 10.14 - Prob. 23KCPCh. 10.14 - Prob. 24KCPCh. 10.14 - Prob. 25KCPCh. 10.14 - Prob. 26KCPCh. 10.14 - Prob. 27KCPCh. 10.14 - Prob. 28KCPCh. 10.14 - Prob. 29KCPCh. 10.14 - (a) Describe the compression-molding process for...Ch. 10.14 - (a) Describe the transfer-molding process for...Ch. 10.14 - Prob. 32KCPCh. 10.14 - Define an engineering thermoplastic. Why is this...Ch. 10.14 - What is the structural formula for the amide...Ch. 10.14 - (a) In the designation nylon 6,6, what does the...Ch. 10.14 - Prob. 36KCPCh. 10.14 - Prob. 37KCPCh. 10.14 - Prob. 38KCPCh. 10.14 - Prob. 39KCPCh. 10.14 - Prob. 40KCPCh. 10.14 - Prob. 41KCPCh. 10.14 - Prob. 42KCPCh. 10.14 - Prob. 43KCPCh. 10.14 - Prob. 44KCPCh. 10.14 - (a) What are the major processing methods used for...Ch. 10.14 - Prob. 46KCPCh. 10.14 - Prob. 47KCPCh. 10.14 - Prob. 48KCPCh. 10.14 - What is natural rubber mainly made of? What other...Ch. 10.14 - Prob. 50KCPCh. 10.14 - Prob. 51KCPCh. 10.14 - Prob. 52KCPCh. 10.14 - Prob. 53KCPCh. 10.14 - What is the vulcanization process for natural...Ch. 10.14 - Prob. 55KCPCh. 10.14 - Prob. 56KCPCh. 10.14 - What are the silicones? What is the general...Ch. 10.14 - Prob. 58KCPCh. 10.14 - Prob. 59KCPCh. 10.14 - Prob. 60KCPCh. 10.14 - Prob. 61KCPCh. 10.14 - Define the creep modulus of a plastic material.Ch. 10.14 - What is a craze in a glassy thermoplastic?Ch. 10.14 - Describe the structure of a craze in a...Ch. 10.14 - Prob. 65KCPCh. 10.14 - Prob. 66AAPCh. 10.14 - Prob. 67AAPCh. 10.14 - Prob. 68AAPCh. 10.14 - An injection-molding polycarbonate material has an...Ch. 10.14 - Prob. 70AAPCh. 10.14 - Prob. 71AAPCh. 10.14 - Prob. 72AAPCh. 10.14 - Prob. 73AAPCh. 10.14 - How much sulfur must be added to 70 g of butadiene...Ch. 10.14 - If 5 g of sulfur is added to 90 g of butadiene...Ch. 10.14 - Prob. 76AAPCh. 10.14 - Prob. 77AAPCh. 10.14 - Prob. 78AAPCh. 10.14 - Prob. 79AAPCh. 10.14 - Prob. 80AAPCh. 10.14 - Prob. 81AAPCh. 10.14 - Prob. 82AAPCh. 10.14 - Prob. 83AAPCh. 10.14 - A polymeric material has a relaxation time of 60...Ch. 10.14 - Prob. 85AAPCh. 10.14 - Prob. 86AAPCh. 10.14 - Prob. 87AAPCh. 10.14 - Prob. 88AAPCh. 10.14 - Prob. 89AAPCh. 10.14 - Prob. 90AAPCh. 10.14 - Prob. 91AAPCh. 10.14 - Prob. 92AAPCh. 10.14 - Prob. 93AAPCh. 10.14 - (a) What causes a polyethylene molecular chain to...Ch. 10.14 - Prob. 95AAPCh. 10.14 - Prob. 96AAPCh. 10.14 - Prob. 97AAPCh. 10.14 - Prob. 98AAPCh. 10.14 - Write the reaction for the stepwise polymerization...Ch. 10.14 - Prob. 100AAPCh. 10.14 - Prob. 101AAPCh. 10.14 - How does chain branching affect the following...Ch. 10.14 - (a) Write the general reaction for the...Ch. 10.14 - Prob. 104AAPCh. 10.14 - Prob. 105AAPCh. 10.14 - Prob. 106AAPCh. 10.14 - Prob. 107AAPCh. 10.14 - Prob. 108AAPCh. 10.14 - Prob. 109AAPCh. 10.14 - Prob. 110AAPCh. 10.14 - Prob. 111AAPCh. 10.14 - Prob. 112AAPCh. 10.14 - Prob. 113AAPCh. 10.14 - Prob. 114AAPCh. 10.14 - Prob. 115AAPCh. 10.14 - Prob. 116AAPCh. 10.14 - Prob. 117AAPCh. 10.14 - Prob. 118AAPCh. 10.14 - Prob. 119AAPCh. 10.14 - Prob. 120AAPCh. 10.14 - What are two types of reaction sites that are...Ch. 10.14 - Prob. 122AAPCh. 10.14 - Prob. 123AAPCh. 10.14 - Prob. 124AAPCh. 10.14 - Prob. 125AAPCh. 10.14 - Prob. 126AAPCh. 10.14 - How does cross-linking with sulfur affect the...Ch. 10.14 - Prob. 128AAPCh. 10.14 - Can SBR be vulcanized? Explain.Ch. 10.14 - Prob. 130AAPCh. 10.14 - Write the repeating chemical structural unit for...Ch. 10.14 - Prob. 132AAPCh. 10.14 - Prob. 133AAPCh. 10.14 - Prob. 134AAPCh. 10.14 - Prob. 135AAPCh. 10.14 - Prob. 136AAPCh. 10.14 - Prob. 137AAPCh. 10.14 - Explain how highly polar atoms bonded to the main...Ch. 10.14 - Prob. 139AAPCh. 10.14 - Prob. 140AAPCh. 10.14 - Prob. 141AAPCh. 10.14 - Prob. 142AAPCh. 10.14 - Prob. 143AAPCh. 10.14 - Prob. 144AAPCh. 10.14 - Why do cured thermoset plastics not become viscous...Ch. 10.14 - Prob. 146AAPCh. 10.14 - Prob. 147AAPCh. 10.14 - Prob. 148AAPCh. 10.14 - Prob. 149AAPCh. 10.14 - Prob. 150AAPCh. 10.14 - Prob. 151AAPCh. 10.14 - Prob. 152AAPCh. 10.14 - Prob. 153AAPCh. 10.14 - Prob. 154AAPCh. 10.14 - Prob. 155AAPCh. 10.14 - Prob. 156AAPCh. 10.14 - Prob. 157AAPCh. 10.14 - Prob. 158AAPCh. 10.14 - Prob. 159AAPCh. 10.14 - Prob. 160AAPCh. 10.14 - Prob. 161AAPCh. 10.14 - Prob. 162AAPCh. 10.14 - Prob. 163AAPCh. 10.14 - Prob. 164AAPCh. 10.14 - Prob. 165AAPCh. 10.14 - Prob. 166AAPCh. 10.14 - Prob. 167AAPCh. 10.14 - Prob. 168AAPCh. 10.14 - Prob. 169AAPCh. 10.14 - Prob. 170AAPCh. 10.14 - Prob. 171AAPCh. 10.14 - Prob. 172AAPCh. 10.14 - Prob. 173AAPCh. 10.14 - Prob. 174AAPCh. 10.14 - Prob. 175AAPCh. 10.14 - Prob. 176AAPCh. 10.14 - Prob. 178AAPCh. 10.14 - Prob. 179AAPCh. 10.14 - What are some of the advantages of epoxy thermoset...Ch. 10.14 - How are most unsaturated polyesters reinforced?Ch. 10.14 - What are some applications for reinforced...Ch. 10.14 - Prob. 183AAPCh. 10.14 - Prob. 187SEPCh. 10.14 - Prob. 188SEPCh. 10.14 - Prob. 189SEPCh. 10.14 - Prob. 190SEPCh. 10.14 - Prob. 191SEPCh. 10.14 - Prob. 192SEPCh. 10.14 - Prob. 193SEPCh. 10.14 - (a) In selecting the materials for an infant milk...Ch. 10.14 - Prob. 195SEPCh. 10.14 - Prob. 196SEPCh. 10.14 - (a) In selecting the materials for compact discs,...Ch. 10.14 - Prob. 198SEPCh. 10.14 - Prob. 199SEPCh. 10.14 - Prob. 200SEPCh. 10.14 - (a) In selecting the materials for a bungee cord,...Ch. 10.14 - Prob. 202SEPCh. 10.14 - Prob. 203SEPCh. 10.14 - In orthopedic applications related to knee and hip...
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- For a given polymer, the activation energy for stress relaxation was measured to be 10 kJ/mol. If the stress relaxation time for this polymer at room temperature is 3,600 s, what would be the relaxation time at 100 ◦C?arrow_forwardFor a given polymer, the activation energy for the stress relaxation was measured to be 59kj/mol. If the stress relaxation time for this polymer at 7 degree Celsius is 3150 seconds. What is the relaxation time at 110 degree Celsiusarrow_forwardBased on the facts that the free-radical polymerization of ethene is spontaneous and that polymer molecules are less disorganized than the starting monomers, decide whether the polymerization reaction is exothermic or endothermic. Explain.arrow_forward
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