Specific Gravity Of Polymers..........S.S

 Gravity Of Polymers

By :- Sunny Raj


1. Polyolefins

Polymer

Abbreviation

Specific Gravity

Low density polyethylene

LDPE

0.91 – 0.92

High density polyethylene

HDPE

0.94 – 0.96

Linear low density polyethylene

LLDPE

0.91 – 0.93

High molecular high density polyethylene

HMHDPE

0.94 – 0.97

Ultra high molecular HDPE

UHMHDPE

0.97

Polypropylene

PP

0.89 – 0.91

2. Chlorinated Polymers

Polymer

Abbreviation

Specific Gravity

Poly vinyl chloride

PVC

1.38 – 1.41

Poly vinyledene chloride

PVDC

1.65 – 1.75

Chlorinated PVC

PVCC

1.44 – 1.47

Co-polymer of vinyl chloride & vinyl acetate

PVC-co-VA

1.16 – 1.36

Poly vinyl alcohol

PVA

1.21 – 1.32

Poly vinyl acetate

PVAc

1.17 – 1.26

 3. Fluoro Polymer

Polymer

Abbreviation

Specific Gravity

Polyvinyl fluoride

PVF

1.44

Poly vinyledene fluoride

PVDF

1.76 – 1.771

Ploy chloro tri fluoro ethylene

PCTFE

2.10 – 2.20

Poly tetra fluoro ethylene

PTFE

2.10 – 2.30

 4. Polystyrene & co-polymer

Polymer

Abbreviation

Specific Gravity

Acrylonitrile butadiene styrene

ABS

1.07 – 1.10

Styrene acrylo nitrile

SAN

1.06

Polystyrene

PS

1.04 – 1.07

 5. Polyamides

Polymer

Abbreviation

Specific Gravity

Nylon 6

PA 6

1.10 – 1.16

Nylon 66

PA 66

1.09 – 1.14

Nylon 11

PA 11

1.04 – 1.10

Nylon 12

PA 12

1.01 – 1.02

Nylon 6,10

PA6,10

1.07 – 1.09

 

6. Acrylic polymers

Polymer

Abbreviation

Specific Gravity

Polymethamethacrylate

PMMA

1.17 – 1.20

Poly acrylonitrile

PAN

1.16 – 1.19

7. Acetal polymers

Polymer

Abbreviation

Specific Gravity

Polyoxym,ethylene (homo)

POM

1.43

Polyoxymethylene (Co)

POM

1.41

 8. Esters

Polymer

Abbreviation

Specific Gravity

Polycarbonate

PC

1.2

Poly ethylene terepthalate

PET

1.37

Poly butylenes terethlate

PBT

1.32

 9. Polyurethane

Polymer

Abbreviation

Specific Gravity

Polyurethane (Linear)

TPU

1.17 -1.22

 10. Cellulose Polymer

Polymer

Abbreviation

Specific Gravity

Cellulose acetate

CA

1.25 – 1.35

Cellulose acetate butyrate

CAB

1.15 – 1.25

Cellulose nitrite

CN

1.58 – 1.66

Cellulose propionate

CP

1.20 – 1.24

 11. Heat resistance polymer

Polymer

Abbreviation

Specific Gravity

Poly phenylene oxide

PPO

1.06

Poly phenylene sulphide

PPS

1.35

Poly sulphone

PSU

1.24

Poly imide

PI

1.42

Poly ether ether ketone



PEEK

1.27

 

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