The modification of engineering plastics by PTFE powder mainly concentrates on the two aspects: anti-wear lubrication and anti-drop flame retardant.

1. Anti-wear lubrication 

Most engineering plastics have high surface friction coefficient, so it is necessary to use external lubricants in some occasions, which limits the application of engineering plastics in occasions where external lubricants are not allowed. Polytetrafluoroethylene (PTFE) powder has very low surface energy and excellent self-lubricating properties. The oil-free lubricating composites with low surface friction coefficient can be prepared by blending PTFE powder with engineering plastics.At present, almost all engineering plastics with modified lubricating properties are mixed with PTFE ultra-fine powder or micro-powder. For example, adding 5% – 15% PTFE micropowder, the parts made from polyamide (PA), polyacetal (POM), polycarbonate (PC), polypropylene (PP), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), acrylonitrile-butadiene-styrene copolymer (ABS) and other high performance engineering resins can significantly improve their wear, friction and viscous sliding properties, which can be used to manufacture gears, bearings and pulleys, and can also be used to replace the metal parts that play a role of lubrication in order to reduce the weight of workpieces and reduce maintenance costs.

– Rommended Products 

CodeProduct TypeParticle Average SizeAverage Bulk DensitySpecific Surface Area
TPD-505PTFE Micropowder~5.0µm≤450g/L3.0m2/g 
TPD-511PTFE Micropowder~11.0µm≤400g/L2.5m2/g 

TPD-505HPTFE Micropowder~5.5µm≤600g/L2.0m2/g 
TPD-515HPTFE Micropowder~ 15.0µm≤650g/L2.0m2/g 

CodeFeatureAverage Particle Size, µmMaximum Particle Size, µm
TPD-503SA
Free of PFOAD50: 1.0~2.9≤10
TPD-505SA
Free of PFOAD50: 3.0~5.0≤15
TPD-508SA
Free of PFOAD50: 5.1~8.0≤25
TPD-512SA
Free of PFOAD50: 8.0~12.0≤40
TPD-513SA
Free of PFOAD50: 11.0~13.0≤50

Note: 

“5”: Suspension Polymerization

“6”: Dispersion Polymerization

“H”: Recycled Materials 

“S”: Special Modification Treatment

“A”: Free of PFOA

If you are not sure which PTFE Micropowders are suitable for your applications, you are welcome to send email to contact@fluorochemie.com to consult us. 

2. Anti-drop flame retardant 

Anti-dropping agent(Anti-flaming Agent) is mainly used in plastic materials that require flame retardant grade up to V0. It can prevent melting dropping and improve flame retardant performance. It can still meet the requirements of standard UL V-0 when reducing the amount of flame retardant, and at the same time reduce costs and enhance product competitiveness. High molecular weight PTFE(molecular weight of about 4 million to 5 million) fibrosis under the shear force of the screw to form a network structure, thus playing a role in anti-dripping.

– Rommended Products 

CodeTypeMain IndexMain Features
TPD-405BCoated TypePTFE content: ≥50%
Apparent density: 400g/L
1. Excellent dispersibility, compatibility
2. Excellent operability
3. No agglomeration at room temperature
TPD-450Pure Powder TypePTFE content: ≥99.99%
Average Particle Size(µm): 200±50
Apparent density: 700g/L
1. Can be added in large amount
2. Excellent dispersibility and operability
3. No agglomeration at room temperature
4. Less impact on the impact strength
TPD-470Pure Powder TypePTFE content: ≥99.0%
Average Particle Size(µm): 500±150
Bulk Density: 740g/L
1. Can be added in large amount
2. Excellent operability
3. No agglomeration at room temperature
4. Less impact on the impact strength