Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 7, Problem 3RQ
List properties that are influenced by the degree of polymerization.
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Chapter 7 Solutions
Manufacturing Engineering & Technology
Ch. 7 - Summarize the important mechanical and physical...Ch. 7 - What are the major differences between the (a)...Ch. 7 - List properties that are influenced by the degree...Ch. 7 - What is the difference between condensation...Ch. 7 - Explain the differences between linear, branched,...Ch. 7 - What is the glass-transition temperature?Ch. 7 - List and explain the additives commonly used in...Ch. 7 - What is crazing?Ch. 7 - What are polyblends?Ch. 7 - List the major differences between thermoplastics...
Ch. 7 - What is an elastomer?Ch. 7 - What effects does a plasticizing agent have on a...Ch. 7 - Define the following abbreviations: PMMA, PVC,...Ch. 7 - Explain why it would be advantageous to produce a...Ch. 7 - What are the differences and similarities of...Ch. 7 - Are molecular weight and degree of polymerization...Ch. 7 - Why do polymers need to be dried before...Ch. 7 - What characteristics of polymers make them...Ch. 7 - Do polymers strain harden more than metals or vice...Ch. 7 - Inspect various plastic components in an...Ch. 7 - Give applications for which flammability of...Ch. 7 - What characteristics make polymers advantageous...Ch. 7 - What properties do elastomers have that...Ch. 7 - Do you think that the substitution of plastics for...Ch. 7 - Is it possible for a material to have a hysteresis...Ch. 7 - Observe the behavior of the specimen shown in Fig....Ch. 7 - Add more to the applications column in Table 7.3.Ch. 7 - Discuss the significance of the glass-transition...Ch. 7 - Prob. 29QLPCh. 7 - Explain how cross-linking improves the strength of...Ch. 7 - Describe the methods by which the optical...Ch. 7 - How can polymers be made to conduct electricity?...Ch. 7 - Explain the reasons for which elastomers were...Ch. 7 - Give several examples of plastic products or...Ch. 7 - Describe your opinions regarding the recycling of...Ch. 7 - Explain how you would go about determining the...Ch. 7 - Compare the values of the elastic modulus, given...Ch. 7 - Why is there so much variation in the stiffness of...Ch. 7 - Explain why thermoplastics are easier to recycle...Ch. 7 - Give an example where crazing is desirable.Ch. 7 - Describe the principle behind shrink wrapping.Ch. 7 - List and explain some environmental pros and cons...Ch. 7 - List the characteristics required of a polymer for...Ch. 7 - How can you tell whether a part is made of a...Ch. 7 - As you know, there are plastic paper clips...Ch. 7 - By incorporating small amounts of a blowing agent,...Ch. 7 - In injection-molding operations (Section 19.3), it...Ch. 7 - From an environmental standpoint, do you feel it...Ch. 7 - Calculate the areas under the stressstrain curve...Ch. 7 - Prob. 50QTPCh. 7 - Prob. 51QTPCh. 7 - Estimate the number of molecules in a typical...Ch. 7 - Using strength and density data, determine the...Ch. 7 - Prob. 54QTPCh. 7 - Prob. 55SDPCh. 7 - Describe the design considerations involved in...Ch. 7 - Assume that you are manufacturing a product in...Ch. 7 - Assume you work for a company that produces...Ch. 7 - Prob. 59SDPCh. 7 - Make a list of products or parts that currently...Ch. 7 - Prob. 61SDPCh. 7 - Prob. 62SDPCh. 7 - Prob. 63SDPCh. 7 - Prob. 64SDPCh. 7 - With Table 7.3 as a guide, inspect various...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- (b) Which of the following plastic and composite materials processing is most suitable for the application of polymer automotive body panel? Explain how the selected manufacturing process selected can be used to produce the product shown in Figure 1.2 below • Injection Moulding • Reaction injection Moulding (RIM) • Blow Moulding • Rotational Moulding • Thermoforming • Compression Moulding (CM) • Transfer Moulding (TM) • Casting • Foam Moulding SULIT SULIT (BMCG 2323) Figure 1.2 Example of polymer automotive body panelarrow_forwardWhat typically happens to the strength level of a polymer that has undergone cold drawing? Why?arrow_forwardQ1 part ( a ) What is polymer melt? Identify the relation of polymer melt to viscosity and viscoelasticity? give complete detail Q1 part (b) Identify the classifications and operations of forging.arrow_forward
- 4ac (simply answer the question) 1.Simply explain the differences between pendant and stiffening groups in polymers. 2. What is glass transition and melting temperature? Simply explain.arrow_forwardViscosity is an important property of a polymer melt in plastics shaping processes. Upon what parameters does viscosity depend?arrow_forwardThermal plastics are stronger than thermoset plastics.arrow_forward
- [0]: What is the cooling curve for both metals and plastics?arrow_forwardState one application of plastic product where polymer is the only material class to provide the desirable properties to help in product design and overrides the properties of metals or ceramics.arrow_forwardBriefly Explain the properties of polymer that is related to crystallinity.arrow_forward
- Discuss the effect of temperature and strain rate on the mechanical properties of polymers.arrow_forward"The tensile modulus of a given polymer increases as its crystallinity increases" Is this statement True or False? Provide an argument with a simple drawing to support your answer.arrow_forwardPage 12 of 13 4. Give TWO (2) examples of polymers that can used as a resin in mounting process. 1. 2. 5.Fill in the blank with the following: [grain boundary, dislocation, coarse, stronger] A fine-grained material (one that has small grains) is harder and that is area to impede than one -grained, because the former has a greater total movement. 6. Label ferrite and pearlite in the following photomicrographs of a PCS specimen. 7. Which one is coarser? ANS: (a) Abrasive paper: 180 grit paper or 320 grit paper ANS: (b) Metal specimen: ASTM grain-size number; 4 or 10arrow_forward
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Polymer Basics; Author: Tonya Coffey;https://www.youtube.com/watch?v=c5gFHpWvDXk;License: Standard youtube license