Instructor : Daesu Kim
Office: E8-10 #702
Polymer Engineering
Outline:
This lecture will cover
- fundamental knowledge and concepts on polymer engineering - solid state properties of polymers
- how physical properties of polymers are related to their physical and chemical structures - what methods are used to measure the physical properties of polymers
- fundamental polymer processing technologies - viscoelasticity of polymers and rubber elasticity
Objectives:
- To understand fundamentals on polymer engineering
- To understand physical properties of polymers and how to measure them - To understand fundamentals on polymer processing
- To understand viscoelasticity of polymers and rubber elasticity - To carry out a term project on polymer engineering
Textbook:
1. 주교재 : Polymer Science and Technology, 3rd ed., Joel R. Fried, Prentice Hall, 2014 (원서) 2. 부교재 : 고분자공학개론, 3판., Joel R. Fried, 자유아카데미, 2015 (번역본)
ref) 김성철 외, 고분자공학I, 희중당, 1994
Weekly schedule:
1st week: Introduction to Polymer Engineering, Amorphous State of Polymers 2nd week: Crystalline State of Polymers
3rd week: Crystalline State of Polymers, Thermal Transitions and Properties 4th week: Thermal Transitions and Properties
5th week: Thermal Transitions and Properties 6th week: Mechanical Properties
7th week: Mechanical Properties
8th week: Q&A for lecture contents of 1st-7th weeks & midterm exam.
9th week: Polymer Processing
10th week: Polymer Processing, Begin Term Project 11th week: Viscoelasticity
12th week : Viscoelasticity 13th week: Viscoelasticity
14th week: Viscoelasticity, Rubber Elasticity, Present Term Project 15th week: Q&A for lecture contents of 9th-14th weeks & final exam.
Grading: - Exams (65%) - Homework (15%)
How to lecture:
- Lectures will be given using PowerPoint presentation materials written in English - PDF and lecture video files will be available at KOCW or CBNU eCampus
- Lecture video files should be studied in advance before attending to the class because a flipped learning method is used
Useful information:
- Solve the example problems
- Solve the assigned chapter-end problems and turn in on the due date as homework!
- If a student commits cheating on exams the student may be punished by the university regulations
Carrying out a term project:
1. Choose a term project item (new business idea proposal) on polymer engineering yourself 2. Prepare a PPT material of about 3 pages long as a final report and submit it by email
to [email protected] on the presentation day before 10 AM 3. Present the PPT material for about 3 minutes at the class
a. Thermo-Physical Properties of Polymers
Volumetric Properties: density change with T, thermal expansion
Calorimetric Properties: heat capacity
Transition Temperatures: T
g, T
m Cohesive Properties and Solubility: solubility parameter
Interfacial Energy Properties: surface tension
Properties of Very Dilute Solutions: intrinsic viscosity
Ch.4 Solid-State Properties
b. Properties of Polymers in Fields of Force
Optical Properties: refractive index, transparency birefringence
Electrical Properties: dielectric constant
Magnetic Properties: magnetic resonance
Mechanical Properties of Solid Polymers: modulus, strength
Acoustic Properties: damping properties
c. Transport Properties of Polymers
Rheological Properties of Polymer Melts: viscoelasticity
Rheological Properties of Polymer Solutions: viscoelasticity
Transport of Thermal Energy: thermal conductivity
Properties Determining Mass Transfer: permeability
Crystallization: crystallinity
d. Chemical Stability and Breakdown of Polymers
Thermo-Chemical Properties: thermodynamics
Thermal Decomposition Property: thermal stability
Chemical Degradation Property: chemical stability
e. Polymer Properties as an Integral Concept
Intrinsic Properties: structure(chemical & physical) dependent
Processing Properties: orientation of polymer chains
Product Properties (I): Mechanical Properties - failure mechanism
- deformation properties - toughness and endurance - hardness
- friction and wear
Product Properties (II): Environmental Behavior - thermal end use properties
- flammability
- environmental decay of polymers in liquids
- environmental decay of polymers in the air
commercial polyolefins: semi-crystalline polymers with spherulites
polymer morphology:
a. amorphous polymer: atactic-PS, atactic-PMMA
b. crystalline polymer: stereoregularity, isotactic-, syndiotactic- mostly semi-crystalline polymer: amorphous region +
crystalline region
polymer morphology physical properties
highly relatedex) PE (high crystallinity), PVC (low crystallinity)
