About Us

Polymer Science

TFE Monomer is generally manufactured by synthesis of Calcium Fluoride (Fluorospar), Sulphuric Acid & Chloroform. The polymerisation of TFE is carried out in carefully controlled conditions to form PTFE.

Due to presence of stable & strong C-F bonds, PTFE molecule possesses outstanding chemical inertness, high heat resistance & remarkable electrical insulation characteristics; in addition to excellent frictional properties.

PTFE Poly Tetra Fluoro Ethylene

PTFE is high performance engineering specialty polymer invented by Dr. Roy J. Plunkett at Du Pont's Jackson Laboratory, New Jersey, US, on 6^th April 1938. As the polymer was found to have exceptional properties with regards to chemical inertness, heat resistance & frictional properties; developmental manufacturing began in 1943 with joint efforts of Kinetic Engineering Inc, USA & E.I. Du Pont de Nemours & Co. Inc., USA. The commercial production went operational by E.I. Du Pont de Nemours & Co. Inc., USA in 1948. The worldwide consumption of PTFE is around 45,000 Tonnes in 1997 & expected to grow at the rate of 10% per annum.

Physical Properties of the Product

Physical Properties:

	Property	Unit	Test Method	Virgin PTFE	25% Glass Filled PTFE	25% Carbon Filled PTFE	60% Bronze Filled PTFE
Mechanical	1. Density	gm/cc	ASTM D-792	2.1-2.2	2.25	2.14	3.8
	2. Tensile strength	kgf/cm2	ASTM D-638	210-350	125-200	120-155	105-140
	3. Elongation of Break	%	ASTM D-638	250-400	200-300	100-150	80-160
	4. Compressive strength	kgf/cm2	ASTM D-695	40-50	75-85	75-85	115-125
	5. Compressive modulus	kgf/cm2		4000	7000	8400	8800
	6. Deformation A. 2 Hrs 23°C, 140kg/cm2 B. 24 Hrs. 23°C, 140kg/cm2 C. Permanent D. 2 Hrs. 150°C, 200kg/cm2	%	ASTM D-621	12 15 8 50	9 11 7 50	4 5 2.5 33	4 5 2.5 40
	7. Flexural strength	kgf/cm2	ASTM D-790	57	42	96	80
	8. Flexural Modulus	kgf/cm2	ASTM D-790	3500-6300	16700	11900	13800
	9. Impact Strength A. -20°C B. +20°C C. Static P-35 kg/cm2	cm kg/cm2	ASTM D-256	9 15	9.5 11	7.5 10	11 10
	10. Hardness	Scale D	Shore	60-65	70-75	70-75	70-75