Diploma in Plastics Technology 5th Semester Syllabus

                                 DIPLOMA IN PLASTICS TECHNOLOGY (DPT)

SEMESTER-V

Plastics Recycling and Waste Management 

(Develop understanding of plastics waste collection, segregation and recycling techniques, value addition and associated environmental issues and legislation) 

31.1 Understanding of Plastics Waste - sources, collection, segregation, identification by simple methods and techniques employed for its separation 

131.2 Knowledge of Plastics Waste Management Techniques – recycling and its types, and use of plastics waste for energy recovery, road construction 

31.3 Knowledge of Machinery and Value addition (1 Process , Basic Mechanical recycling Plant, Additives for improving quality of recycled products 

31.4 Exposure to Environmental issues associated with Plastics Waste and Guidelines and Legislation in India for Plastics waste and its recycling

Maintenance of Plastics Processing & Testing Equipments 

(Awareness of importance of maintenance and its types. Basic knowledge of maintenance of electrical and mechanical – hydraulics and transmission - systems of equipments on lab/shop floor)

32.1 Understanding of the Importance and Objectives of Maintenance, different types of Maintenance, Maintenance Planning, 

32.2 Awareness of safety rules and regulations 

32.3 Knowledge of basic electrical parameters -Repair  and maintenance of the electrical equipments – different types of motors, starters, Circuit Breakers, Limit Switches & Timers, Relays, Heaters, Temperature Controllers, Thermocouples, 

32.5 Knowledge of basic Mechanical elements: Screw, Barrel, Non return valve, Thrust Bearing Unit, Gear Boxes, Calendar roll, Mill roll – platens flatness & parallelism measurement , Moving parts maintenance 

32.6 Basic understanding of Hydraulics- different types of pumps, different types of Valves, Valve sequences, Valve counter balance, 

32.7 Knowledge of Hydraulic Motors, Hydraulic Actuators, Filters, Compressors, Oil seals, O - Rings - Central Lubrication System , Oil quality monitoring, filtration 

32.8 Knowledge of Transmission system i.e. Gears, Vbelts, Chains - PLC system used in plastics processing & Testing Machineries.

Plastics Processing Technology – II

 (Overview of rotational molding, thermoforming, compression and transfer molding process. Basic understanding of automation and secondary processing techniques and exposure to advanced plastics processing techniques)

33.1 Knowledge of Rotational Moulding, thermoforming, compression and transfer molding, - Basic principle - Material selection Types of machine - Heating and cooling system, advantages and limitations, Process variables, defects and troubleshooting 

33.2 Understanding of basic concept of Fibre Reinforced Plastics (FRP). Handling of matrix Materials and fibre reinforcements. 

33.3 Different FRP processing & fabrication methods. 

33.4 Exposure to concept of Automation- Use of Robots in part handling, Robotics used in high production moulding process, Automated Conveyor system, 

33.5 Knowledge of various secondary processes - Calendaring Process, Powder coating, casting, machining, joining of plastics 

33.6 Understanding of Post moulding operations, Assembly techniques, In-mould labeling, printing, joining, welding, Electroplating, Printing 

33.7 Introduction to Advanced Plastics Processing: structural foam moulding, gas assisted and water assisted injection moulding, Two/multi- colour moulding, Co--injection moulding, Double wall Blow moulding, Lost core Injection molding, thermoset injection moulding, All Electric Injection Moulding – merits and demerits.

PLASTICS TESTING – II 

(Develop understanding of testing of electrical, optical, chemical, weathering flammability and biodegradability characteristics of  plastics. Understands product testing- pipes, water tanks, films, woven sacks)

34.1 Knowledge of testing of Electrical Properties - Dielectric strength - Dielectric constant and Dissipation factor - Insulation resistance - Volume and Surface resistivity - Arc resistance - Antistatic

 34.2 Knowledge of testing of Refractive index - Luminous  transmittance - Clarity and Haze - Photo-elastic properties - Colour measurements and Gloss. 

34.3 Knowledge of testing of Chemical Properties Immersion test – Stain Resistance of Plastics – Environmental Stress Cracking Resistance 

34.4 Understanding of Flammability testing - Flammability Test – Ignition Properties – Oxygen Index Test – Flammability of Cellular Plastics – Smoke Density Test – UL90 Flammability Test. 

34.5 Knowledge of tests conducted for Weathering of plastics, environmental factors affecting plastics – Accelerated weathering tests – outdoor weathering of plastics – Resistance of plastics to biological systems. 

34.6 Understanding of Bio-degradability Testing- Test methods and standards for bio-degradable plastics - Criteria used in evaluation of biodegradable plastics - Description of current test methods.

 34.7 Exposure to Product Testing - Plastics Pipes – Water Tanks – Containers & Plastic Foams, Packaging materials-film-woven sacks.

PLASTICS PROCESSING LAB – II

 (Practice on machine-various plastics conversion techniquesautomatic injection molding, compression and transfer molding, thermoforming, rotational molding and study role and operation of ancillary equipment)

35.1 Understanding of Safety Precautions to be taken while handling Machine, Mould & Tools on shop floor 

35.2 Exposure to running of Automatic Injection Molding machine -Idle-Run Observation (IRO) 

35.3 Machines operation -Automatic Injection Molding machine -Practice, Process parameter setting

 35.4 Operation of Machine to produce components, observations of all parameters, cycle-time analysis, moulding faults analysis, causes and remedies. 

35.5 Understanding of Compression & Transfer Moulding-Semi Auto & Automatic -Parameter setting, clamping and safety factors 

35.6 Operation-practice on different Compression & Transfer Moulds, Analysis of product defects & remedies, Analysis of cycle-time, 

35.7 Study of different Thermoforming processes, type of moulds & materials used, Mounting & Clamping of plastic sheet, heating & vacuum system, cooling, trimming & finishing. Familiarization with machine controls 

35.8 Operation practice of Thermoforming processes Analysis of Cycle- time, processing-defects & remedies. 

35.9 Study of Rotational Moulding in IRO, sequence of operation, Raw materials used & loading, mould clamping practice  

35.10 Operation practice to produce rotomoulded components, heating & cooling method adopted, Cycle-time analysis 

35.11 Understanding of FRP Process-Study of types of resins, Fibres & additives used in the process, Sequence of process operation in Hand lay-up process, Operation practice for hand lay-up process for producing FRP products, defects & analysis for the remedies 

35.12 Study of ancillary Equipment -Hopper Dryer, Chiller, Mould Temperature Controller, Cooling Tower, Mixer

PLASTICS TESTING LAB – II

(Practical exposure to product testing- pipes, water tanks, films, woven sacks, flooring etc.)

36.1 Product Testing as per BIS Standards 

36.2 Testing of PVC Pipes and Fittings 

36.3 Testing of HDPE Pipes and Fittings 

36.4 Testing of LDPE Films 

36.5 Testing of PET Containers for Drinking Water 

36.6 Testing of PP and PC Feeding Bottle 

36.7 Testing of Water Storage Tank 

36.8 Testing of Foam 

36.9 Testing of FRP Products 

36.10 Testing of Irrigation Laterals & Drippers 

36.11 Testing of Woven Sacks 

36.12 Migration Test to Stimulants 

36.13 Testing of Vinyl Flooring

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