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Polymer Processing

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Polymer Processing

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Topics

1. Introduction

- what is polymer processing?

- role of chemical engineers in polymer processing industry - why rheology?

2. Introduction to extrusion

- why statistical process control in polymer processing?

3. Introduction to injection molding

- why design of experiments in polymer processing?

4. Fundamentals of polymers - material properties

- mechanical properties 5. Rheology

- flow field

- rheological properties 6. Constitutive equations

- Mid Exam

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7. Statistical process control - process capabilities

- 6 sigma process control 8. Design of experiments

- method of orthogonal arrays - Taguchi method

9. Extrusion process - mixing

- single screw extrusion - twin screw extrusion

10. Injection molding process

- CAE (Computer Aided Engineering) - typical problems in injection molding - new technologies

11. Others

- other processes

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Questions !

• What is polymer?

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Questions !

• What is polymer?

• What is polymer processing?

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Questions !

• What is polymer?

• What is polymer processing?

• What is polymer industry?

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Questions !

• What is polymer?

• What is polymer processing?

• What is polymer industry?

• What is industry?

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Questions !

• What is polymer?

• What is polymer processing?

• What is polymer industry?

• What is industry?

• What is the role of chemical

engineers in polymer industry?

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Questions !

• What is polymer?

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Polymer

• A long molecule consisting of many small

units(monomers) joined end to end

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Radical groups

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Vinyl structure

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More…

PE, PP, PVC, PS, PVA …

PMMA, PA, PU, PC, SBR, EVOH, ABS …

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Polyethylene

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Polyethylene

10 um

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ABS

(Acrylonitrile-Butadiene-Styrene)

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ABS

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Components

• G-ABS

• San

• Anti-oxydent

• Lubricant

• colorant

• Others

– Light stabilizer, acid scavenger, filler,

frame retardant, coupling agent…

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What is good resin?

• Design

– Overall performance – Processing,

material(chemistry,morphology)

• Production

– Uniformity, apprearance

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Questions !

• What is polymer processing?

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Polymer processing

• Extrusion

– Compounding, sheet, pipe …

• Injection molding

• Blow molding

• Thermoforming

• Film blowing

• Fiber spinning

• etc

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Extrusion

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Pipe extrusion

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Sheet extrusion

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Injection molding

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Blow molding

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Thermoforming

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Film blowing

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Statistics

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Questions !

• What is polymer industry?

(31)

Polymer industry

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Polymer industry

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Polymer industry

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Polymer industry

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Questions !

• What is industry?

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Industry

(Innovation)

knowledge money

innovation

research

Competitiveness, customer

oriented

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Questions !

• What is the role of chemical

engineers in polymer industry?

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Role of chemical engineers

• R&D

• Production

• T/s

• Sales & marketing

• Management

• CEO/CTO

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Young chemical engineers…

• Knowledge – problem solving

• Passion

• creativity

• Dream/vision

• Leadership

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What is the problem?

참조

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