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Polypropylene co-polymers have outstanding chemical resistance and show the highest resistance of all thermoplastic to organic chemicals. High density polypropylene has some similarity with Polypropylene copolymers in respect of chemical resistance, although here again Polypropylene copolymers posses the additional advantages of being useable at higher operating temperatures. Both the polymers have similar solubility parameters and tend to swell by the same solvent. In both the cases the absence of any possible interaction between the crystalline polymer and the liquid prevents solution of the polymers in any liquid at room temperature.
Polypropylene copolymer also poses an extremely high resistance to inorganic environments. It is not attacked by aqueous solution of inorganic salts not by most mineral acids and bases, even when in concentrated form, though it is liable to be attacked by oxidizing agents e.g. 100% fuming Nitric acid and Sulphuric acid or the halogens. P.P. Rods available in white, grey, black, & in any colors. |
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| 16MM X 22MM |
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| 20MM X 40MM |
| 25MM X 35MM |
| 30MM X 40MM |
| 35MM X 20MM |
| 50MM X 40MM |
| 60MM X 40MM |
| 60MM X 50MM |
| 85MM X 25MM |
| 88MM X 35MM |
| 100MM X 60MM |
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| Polypropylene Extruded Sheets |
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| Thickness |
Width |
length |
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| 1mm to 25mm |
1220 mm |
2000 mm long |
| 30mm to 50mm |
1000 mm |
2000 mm long |
| 50mm to 100mm |
1000 mm |
1200 mm long |
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| Weight Chart of P.P. Rounds & Sheets |
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| Size in inches |
Size in MM |
Polypropylene Rods 1 Meter Length in Kgs. |
| 5/8" |
16 |
0.200 |
| 3/4" |
20 |
0.300 |
| 1" |
25 |
0.520 |
| 1 1/4" |
320 |
0.800 |
| 1 1/2" |
40 |
1.160 |
| 1 5/8" |
42 |
1.400 |
| 1 3/4" |
45 |
1.600 |
| 2" |
50 |
1.920 |
| 2 1/4" |
60 |
2.650 |
| 2 1/2" |
65 |
3.200 |
| 2 3/4" |
70 |
4.090 |
| 3" |
75 |
4.450 |
| 3 1/4" |
83 |
5.400 |
| 3 1/2" |
90 |
6.150 |
| 4" |
100 |
7.800 |
| 4 1/2" |
115 |
10.100 |
| 5" |
125 |
13.100 |
| 6" |
152 |
18.150 |
| 7" |
175 |
26.700 |
| 8" |
200 |
31.200 |
| 9" |
230 |
36.000 |
| 10" |
255 |
49.000 |
| 12" |
305 |
70.000 |
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| Properties Of Polypropylene Extruded Rods |
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| Property |
ASTM |
Polypropylene |
| Specific Gravity |
D769 |
0.902 - 0.910 |
| P.S.I. Tensile Strength |
D638 |
4300 - 5500 |
| % Elogation |
D638 |
200.0 - 700.0 |
| P.S.I. Comprehensive Strength |
D695 |
5500 - 8000 |
| Impact strength (1/2x1/2 in. notched) |
D256 |
0.5 - 2.280 (1/8 x 1/2 Inbar) |
| Hardness Rockwell |
D785 |
80 -110 |
| 105 P.S.I. 73 0F Flexural Modulus |
D790 |
1.7 - 2.5 |
| Coefficient of friction |
- |
0.3 |
| -10 4cal sec cm3 C cm Thermal conductivity |
C177 |
2.8 |
| Thermal Expansion 105 per 0C |
D696 |
5.8 - 10.2 |
| Resistance to heat 0C (Continuous) |
- |
1100 C |
| ? - cm (23 0C50%) Volume resistivity |
D257 |
1016 |
| 1/8 in thickness volts mil Dielectric strength |
D149 |
500-650 |
| 1 KHz Dielectric constant |
D150 |
2.2 - 2.6 |
| 1 KHz Dissipation (power) factor |
D150 |
0.0005
0.0018 |
| 24 / j3.2 mm% Water absorption 24 hr. 3.2 thickness, % |
D570 |
0.01 - 0.03 |
| in mm Burning rate |
D635 |
0.75 - 0.82 |
| Effect of weak acids |
D534 |
None |
| Effect of strong acids |
D543 |
Attacked slowly by oxidising acids |
| Effect of weak alkalies |
D543 |
None |
| Effect of Strong Alkalies |
D543 |
Resistant |
| Effect of organic solvents |
D543 |
Resistant below 800 C |
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| Weight Chart Of P.P. Extruded Square Rods |
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| Sr. No |
Size in MM |
Size in Inch |
POLYPROPYLENE SQUARE Approx. Weight 300 mm Long |
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| 1 |
16.00 x 16.00 |
5/8" |
0.075 |
| 2 |
20.00 x 20.00 |
3/4" |
0.121 |
| 3 |
25.40 x 25.40 |
1" |
0.230 |
| 4 |
31.70 x 31.70 |
1 1/4" |
0.375 |
| 5 |
38.10 x 38.10 |
1 1/2" |
0.500 |
| 6 |
50.80 x 50.80 |
2" |
0.840 |
| 7 |
63.50 x 63.50 |
2 1/2" |
1.300 |
| 8 |
76.20 x 76.20 |
3" |
1.790 |
| 9 |
100.00 x 100.00 |
4" |
2.860 |
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