In case, you do not see blue navigation panel at left, please click here and then locate this page on the blue navigation panel at left.


APPLICATIONS OF POLYMERS

Polymers will continue to replace other materials on an increasing scale. The polymers already perform satisfactorily in many applications previously employing metal, wood, paper, glass etc. Usage of polymers are already well established in Automobile, electronics, Telecommunication, Computer, Toys, Medical application, clock, houseware, plumbing, footwear, electrical switch gears, luggage,etc. New polymers with specific properties and applications are being developed. With the result , number of polymers with properties suitable for specific applications are now available.

Reasons for replacement of trditional materials:

  • Availability of stronger, stiffer polymers.
  • Development of processing techniques to exploit the properties,
  • Design posibilities of plastics,
  • Availability of accurate, meaningful data on the mechanical properties of polymers.
  • Greater willingness on the part of engineers to consider plastics as raw materials in their own right, rather than substitute,
  • Increasing awarness of the cost saving, enegy saving, labour saving and ease of manufacturing technique.

It is not correct to say that PLASTICS will generally and universally replace all materials. Need for replacement of any part should arise from functional requirement, ease of fabrication, cost with out compromising functional needs, lower weight, lower energy requirement. New polymers with specific properties and applications are being developed.

The part should be designed with plastics material, by considering the

  • Functional needs
  • Service condition
  • Mechanical loading and duration of loading
  • Polymer melt behaviour ( flow, shrinkage, response to shearing )
  • Strength of material
  • Properties of plastics and
  • Processing (conversion- fabrication) technique.

HDPE

HIGH DENSITY POLYETHYLENE

LDPE

LOW DENSITY POLYETHEYLENE

PP

POLYPROPYLENE

PS

POLYSTYRENE

CA

CELULOSE ACETATE

RPVC

RIGID POLY VINYLE CLORIDE

SPVC

SOFT POLY VINYL CLORIDE

ABS

ACRYLONITRILE BUTADINE STYRENE

POM

ACETAL--POLYOXYMETHYLENE POLYFORMALDEHYDE

PMMA

ACRYLIC--POLYMETHYL METHACRYLATE

PPO

POLYPHENYLENE OXIDE

PA

POLYAMIDE --NYLONE

PC

POLYCARBONATE

PES

POLYETHERSULPHONE

PBT

POLYBUTYLENE TETRAPHALATE

PPS

POLYPHENYLENE SULPHIDE

PETP

POLYETHYLENE TETRAPHTHALATE

PEEK

POLYTHERETHERKETONE

PP(copolymer)

POLYPROPYLENE

SAN

ACRYLONITRILE STYRENE

TPU

THERMOPLASTIC POLYURATHANE

Click here to see Application table

Things to know - Polymers

Things to know - Process

Injection Moulding Process

HOME Contact-to buy this book Things to know- Process Things to know- Polymers Things to know- Part Design Things to know- Mould
Things to know- Machine Injection Moulding Process Screw Plasticating Moulding Key factors influencing proces Shear strain curve
pvt diagram

Thermal stability Balancing melt Flow Balancing Heat Freezing Quality Problems
Three Balances

Moulded-in Stress Shrinkage Inconsistent Dimension Sink-mark Weld-lines
Moulding Problems

CYCLE TIME Plastics Part Design Flow Analysis .. ..
Engineering Basics in Machine Glossary of technical terms- Physics Glossary of technical terms- Polymer process Myth Understanding Mould Cooling Channels Ideal Moulding Shop