Given the table below and your judgement for extreme operational conditions, select polymers for the following applications respectively: a dry ice bucket (operating temperature of -78C), a teeth aligner, a hair dryer (operating temperature range of 60-80C) and a phone case. Table 15.2 Melting and Glass Transition Temperatures for Some of the More Common Polymeric Materials Material Polyethylene (low density) Polytetrafluoroethylene Polyethylene (high density) Polypropylene Nylon 6,6 Polyester (PET) Poly(vinyl chloride) Polystyrene Polycarbonate Glass Transition Temperature [°C (°F)] -110 (-165) -97 (-140) -90 (-130) -18 (0) 57 (135) 69 (155) 87 (190) 100 (212) 150 (300) a. LDPE, PTFE, Nylon, polypropylene O b. HDPE, LDPE, LDPE, PTFE O C. PTFE, HDPE, HDPE, polypropylene O d. Nylon, PET, HDPE, PVC Oe. Polypropylene, PET, PTFE, Polypropylene Melting Temperature [°C (°F)] 115 (240) 327 (620) 137 (279) 175 (347) 265 (510) 265 (510) 212 (415) 240 (465) 265 (510)

Given the table below and your judgement for extreme operational conditions, select polymers for the following applications respectively: a dry ice bucket (operating temperature of -78C), a teeth aligner, a hair dryer (operating temperature range of 60-80C) and a phone case. Table 15.2 Melting and Glass Transition Temperatures for Some of the More Common Polymeric Materials Material Polyethylene (low density) Polytetrafluoroethylene Polyethylene (high density) Polypropylene Nylon 6,6 Polyester (PET) Poly(vinyl chloride) Polystyrene Polycarbonate Glass Transition Temperature [°C (°F)] -110 (-165) -97 (-140) -90 (-130) -18 (0) 57 (135) 69 (155) 87 (190) 100 (212) 150 (300) a. LDPE, PTFE, Nylon, polypropylene O b. HDPE, LDPE, LDPE, PTFE O C. PTFE, HDPE, HDPE, polypropylene O d. Nylon, PET, HDPE, PVC Oe. Polypropylene, PET, PTFE, Polypropylene Melting Temperature [°C (°F)] 115 (240) 327 (620) 137 (279) 175 (347) 265 (510) 265 (510) 212 (415) 240 (465) 265 (510)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Electronic semi conductor In a direct band gap semiconductor quantum well of 10 nm thickness surrounded with infinite barriers, an electron transition from the first excited state in the conduction band to the first excited state in the valence band is associated with a photon of frequency 1e+014 Hz. Determine the semiconductor quantum well energy gap, assume me/m, = 0.06 and m,"/m, = 0.4. %3D
relation between melting temperature Tm and maximum crystallization temperature of polymer
1. Railroad tracks made of 1025 steel are to be laid during the time of year when the temperature averages 10°C (50°F). If a joint space of 4.6 mm (0.180 in.) is allowed between the standard 11.9-m- (39-ft-) long rails, (a) what is the hottest possible temperature that can be tolerated without the introduction of thermal stresses? (b) If these tracks were going to be laid in the Australian Outback and see temperatures of 150 °F, what would the stress be?
18)
Showyour all calculation
Hello. Can you please use three questions of my remaining subscription questions to answer the questions below? Use the number of moles: n = 0.0001927. Thank you in advance.
Give me handwritten answer only?
i need the answer quickly
Polyethylene terephthalate is an example of synthetic material in Materials and Engineering. 1. Describe the relation of its building blocks in connection to its “bulk” (materials) properties. (No need for essay, just a brief scientific explaination!) If you may, please send link as well of the reference that you use for the answer).
Give the five examples for glass forming materials. What is the role of modifiers in glass making. what advantages intermediates bring in glass formation? Marks Note- take your time but please give proper answer.
A copper-nickel alloy of composition 45 wt% Ni - 55 wt% Cu is slowly heated from 1200 °C. What percentage of Ni is in the first liquid to form? Use the Cu-Ni equilibrium phase diagram shown below. 1500 Temperature (°C) 1455° 1400 Liquidus L 1300 1280° α + L Solidus 1200 1100 1085° 1240° α 1000 Cu 20 40 60 80 Ni Weight percent nickel
The vapor pressures of solid Cl2 are 352 Pa at -112°C and 35 Pa at -126.5'C. The vapor pressure of liquid Cl2 are 1590 Pa at-100°C and 7830 Pa at -80°C. Calculate (i) A sub H, (ii) Avap H, (iii) A fus H, and (iv) the triple point temperature (T3). Select one or more: A. (i) 87.5 kJ/mol, (ii) 78.9 kJ/mol, (iii) 9.0 kJ/mol, (iv) -36.7°C B. (i) 21.3 kJ/mol, (ii) 13.9 kJ/mol, (iii) 45.4 kJ/mol, (iv) 45°C C. (i) 31.4 kJ/mol, (ii) 13.9 kJ/mol, (iii) 17.5 kJ/mol, (iv) -88°C * D. (i) 31.4 kJ/mol, (ii) 23.9 kJ/mol, (iii) 7.5 kJ/mol, (i) -88°C Your answer is incorrect.