PTFE Molding Powders (small particle size)

PTFE Molding Powders (small particle size)

Item	PX21		PX21-1
	A	B	A	B
Tensile Strength, MPa ≥	30.0		27.4
Elongation at Break, %≥	300
Bulk Density, g/L	345~440
Average Particle Size, μm	20~40	40~70	20~40	40~70
Accumulated Heat Weight Loss,%≤	0.05		0.06
Shrinkage, %≤	4.5		5.0
Expansivity, %≤	8.0		9.0
Molecular Weight, 106≥	4.0		2.0
Standard Relative Density,g/cm3	2.13~2.19
Processing Method	Molding		Molding
Application Recommended	Large sized articles		Filling
Appearance and Purity	Its plate is with clean surface and even texture. No metal impurity is permitted. The impurities should be no more than 2 and their size should be no more than 1mm.		Its plate is with clean surface and even texture and impurities and flecks are no more than 6, among which, impurities of 0.5mm-2mm are no more than 2 and flecks sized 2mm-3mm are no more than 1.
Experimental Results	There should be no more than 2 flecks sized no bigger than 1mm on every 100×100mm2 of circular plate sized Φ250×2mm.

 Properties:

Excellent chemical inertness; Outstanding resistance to chemical corrosion, such as strong acid, alkali, strong oxidant, etc; Exceptional resistance to high, low temperature, and to abrasion; Can be used at temperature range from 200~+250 for long period; Superior electric insulation, which is not affected by temperature and frequency; Non-adhesive to all other materials; Non-absorption of water; Flame-retardation;

Applications:

Could be mixed with fillers such as graphite, glass-fibre, silica dioxide, molybdenuym disulfide, bronze powder etc,to make filled articles;Proceeded into pipes, sheets, rods, films, other articles and parts such as bearing, washer, piston ring and bridge slide, etc.;     Widely used in electrical, electronic, chemicals, aircraft, machine and national defense industries.

PTFE Molding Powders (small particle size)