Braskem PH 1721 HOMO Polypropylene Homopolymer

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Braskem PH 1721 HOMO Polypropylene Homopolymer (discontinued **)
Categories:	Polymer; Thermoplastic; Polypropylene (PP); Polypropylene, Fiber Grade
Material Notes:	PH 1721 is a low melt flow rate polypropylene with an anti-gas fading stabilization package. It is suitable for continuous filament and staple fiber processing due to its molecular weight distribution. It has a good balance of toughness and elongation. This resin could also be used for injection molding processing. It applications include: toys, household appliances, parts in general, staple fibers and continuous filaments for rugs and upholstery, and nonwovens by the thermobonded process.
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Physical Properties	Metric	English	Comments

Density	0.905 g/cc	0.0327 lb/in³	ASTM-D792
Melt Flow	22 g/10 min @Load 2.16 kg, Temperature 230 °C	22 g/10 min @Load 4.76 lb, Temperature 446 °F	ASTM-D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	103	103	ASTM-D785
Tensile Strength, Yield	35.0 MPa	5080 psi	ASTM-D638
Elongation at Yield	8.0 %	8.0 %	ASTM-D638
Flexural Modulus, 1% Secant	1500 MPa	218000 psi	ASTM-D790
Izod Impact, Notched	0.200 J/cm	0.375 ft-lb/in	ASTM-D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	103 °C	217 °F	ASTM-D648
Vicat Softening Point	153 °C @Load 1.02 kg	307 °F @Load 2.25 lb	ASTM-D1525

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PBRAS918 / 106764

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