PL8501 - ADDITIVES AND COMPOUNDING (Syllabus) 2017-regulation Anna University

PL8501 - ADDITIVES AND COMPOUNDING (Syllabus) 2017-regulation Anna University

PL8501

ADDITIVES AND COMPOUNDING

 LPTC

3003

OBJECTIVES: To enable the students
• To know various draw backs of polymer materials and suitable remedies.
• To understand the mechanism of degradation of polymers and stabilizing additives
• To know the various compounding methodologies for plastics materials and learn the maintenance of compounding machinery.

UNIT I

FILLERS, STABILIZERS, PIGMENTS

9

Fillers and Reinforcement– Antioxidants-Thermal Stabilisers, Ultraviolet stabilizer– Impact Modifiers/ Toughening agents. Colourants-Fire retardants-Coupling agents-blowing-agents

UNIT II

PLASTICIZERS

9

Plasticizers- Antistatic agents-Anti blocking agents-Slip and anti slip agents-processing aids - Lubricants- mould releasing agents Additives for recycling.


UNIT III

FUNDAMENTALS OF COMPOUNDING

9

Compounding - Selection of polymers and compounding-ingredients-general objectives- Merits and demerits of additives in polymer matrices. Mixing and mixing equipments. Compounding by batch mixer- High speed mixer - Two roll mill - Banbury Mixer - Ribbon blender - Planetary mixers.

UNIT IV

COMPOUNDING MECHANISMS

9

Compounding Machineries specifications - temperature control system – operating characteristics and working details of continuous mixers - - Single Screw extruder - Twin Screw extruder- house keeping and maintenance of compounding machines.

UNIT V

CASE STUDIES

9

Case studies on preference of one plastics to other and co-relation of properties of conventional materials and blends and alloys - case studies on application of blends and alloys.

TOTAL : 45 PERIODS

OUTCOMES:
• Students will have clear understanding of various types of additives for plastics and their merits and demerits.
• Students can learn about various compounding methods used in the manufacturing of compounded thermoplastics and thermosets.

TEXT BOOKS:
1. Al – Malaika; S. Golovoy; A and Wilkie (Eds), Chemistry and Technology of Polymer Additives, Black well Science Ltd, Oxford (1999).
2. Matthews; F.L. and Rawlings; R.D, Composite Materials, Engineering and Science Chairman and Hall, London (1994).
3. Plastics Testing Technology Hand Books by Vishu Shah,1984.

REFERENCES:
1. Hand Book of Plastics Test Methods by Brown R.P,1989.
2. Mascia; L.,The Role of Additives in Plastics, Edward Arnold Publishers Ltd., U. K. (1974).
3. Murphy; John, Additives for Plastics Handbook, 2nd Edition, Elsevier Advanced Technology, Oxford,2001.
4. R. Gachter and H. Muller, Plastics Additives Hand Book, Hanser Publishers, Munich, 1993.

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