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Advantages & Properties
of Polymers : - |
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We introduce
ourselves as one of the leading manufacturer's in India for Valves
and Piping Systems from Advanced Engineering Plastics. Our product
range includes BallValves, Diaphragm Valves, Non-return Valves, Foot
Valves, Sight Flow Indicators, Pipes & Pipe fittings. The said
products are available in various sizes and polymers like Polypropylene,
Isotactic Polypropylene, PVDF & ETFE.
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General
Properties
: - |
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| VTECHNICAL
PROPERTIES |
SPECIFIC
GRAVITY |
WATER
ABSOR-
PTION
% |
HARDNESS
ROCKWELL
(R) |
TENSILE
STRENGTH
YIELD PSI |
IMPACT
STRENGTH NOTCHED
ft. ib / in |
ELONGATION
AT BREAK
(%) |
HDT
DEG.C |
INJECTION
MOULDING
TEMP.
DEC. C |
MAX
WORKING
TEMP.
DEC. C |
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NORMAL
GRADE
POLY-
PROPYLENE |
0.9-0.91 |
0.01-0.03 |
50 |
4400 |
1.5-2.5 |
200 |
90 |
200-300 |
80-50 |
ISOTACTIC.
POLY-
PROPLINE |
0.90 |
0.01 |
70 |
4800 |
2.2-2.7 |
200 |
120 |
200-300 |
120 |
| PVDF |
1.77-1.78 |
0.03 |
76-80 |
7000 |
2.0-4.0 |
50-250 |
140 |
200-300 |
-40
TO +140 |
| ETFE |
1.70 |
0.007 |
75 |
6700 |
2.0 |
300 |
176 |
310-330 |
-100
TO +160 |
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Advantages
of Isotactic Polypropylene V/S Normal Grade P.P. :
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| 1 |
Isotactic
Polypropylene is a fractional MFIhomopolymer, therefore
it has sufficiently better toughness than any other
homopolymer. |
| 2 |
Due
to presence of atmospheric oxygen Degradation and Oxidation
of normal grade PP is inevitable, even when there is no
direct sunlight, while ISOTACTIC POLYPROPYLENE is immune
to such degradation & oxidation. |
| 3 |
Chemical
resistance of ISOTACTIC PP is more than that of normal grade
PP even at an elevated temperature. |
| 4 |
Isotactic
polypropylene has got excellent heat resistance upto 120
deg.C as against 85-90 deg.C of normal grade PP. |
| 5 |
This
grade is proven in steel industries for their application
of hydrochloric acid containing ferrous & ferric chloride
at an elevated temp. upto 110 deg.C. |
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Minimum
life expected in hours for three continuous service temperature levels. |
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At
120 Deg.C |
At
100 Deg.C |
At
.80 Deg.C |
| Formulation
Isotactic Polypropylene |
18,000
(2 Yr.s) |
1,04,000
(12 Yrs) |
7,15,000(hrs)
(60 Yrs) |
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Note
: In the case of articles in rapid movement
such as exhaust Fan forced ventilation with hot air, the service
time allowed must be reduced by 1/3 of value tabulated for formulations. |
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Diagram |
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Polyvinylidene
Fluoride (PVDF) |
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PVDF
is an engineering fluoropolymer the grade containing no additives
has remarkable properties. The most important of which are : |
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| 1 |
Exceptional
outdoor weather resistance, due to its transparency and
total inertness to ultra-violet light. |
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Excellent
resistance to most of the chemicals. |
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Remarkable
thermal stability under operating and processing application
temperatures. It does not darken when subjected to heat. |
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Good
abrasion resistance, enabling it to be used with slurries. |
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Very
low creep. |
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High
mechanical strength. |
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The
crystalline content of PVDF was chosen in order to obtain
excellent properties, such as low permeability to gases
& fluids as well as low swelling in certain solvents,
while retaining a high impact resistance, good stress cracking
resistance and a very high dimensional stability. |
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PVDF
may be used over wide temperatures from -40 deg.C to + 150
Deg.C. It is non flammable and may be used for contact with
foodstuffs. |
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Advantages |
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| 1 |
It
has very high temperature resistance from -100 Deg.C to
+ 160 Deg.C upto 10,000 Hrs. thermal rating. |
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It
is resistant to a wide variety of corrosive chemicals and
organic solvents, including .strong, acids, and strong bases.
No known solvent dissolves or stress cracks the polymer
at temp. upto 121 Deg.C. |
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It
possesses excellent mechanical properties over a wide temp,
from cryogenic temperature to 204 Deg.C. It has nylon like
durability and provides excellent impact resistance at ambient
and subambient temperatures. |
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It
is fluoropolymer which is mouldable & weldable with
an ordinary thermoplastic welding equipment. |
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Designed
& Hosted by : MID Promoted
by : GID |
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