PTFE Ultrafine Powder

Catalog Number

ACM9002840-64

CAS

9002-84-0

Structure

Description

Polytetrafluoroethylene (PTFE) micro powder is white fine powder with a molecular weight of 30,000-200,000 and a particle size of 1-20 μm. It not only basically maintains the excellent properties of PTFE, but also has many unique properties, such as high crystallinity, good dispersibility, easy to be mixed with other materials evenly. Therefore, micronized PTFE powder is widely used in the blending modification of polymer materials to improve the lubricity, wear resistance, non-stick performance and flame retardancy of the host materials, so that the performance of the host materials is significantly improved.

Melting Point

327±5 ℃

Shelf Life

3 years

Storage

Transported as non-dangerous cargo.
Avoid severe vibration and high temperature sunshine during transportation.
Stored in cool, dry, dark and ventilated place, avoid moisture.

Appendix

PTFE Ultrafine Powder
Items	Main Index	Main Functions	Main Applications
PTFE-S03M	Particle Size: D50: 1.0-2.0µm, D90:˂6.0µm	1. Increase Slip	1. Inks
	Average Bulk Density(g/L): 350	2. Anti-wear	2. Coatings & Paints
	Specific Surface Area(m2/g): ~3.0	3. Anti-scratch
PTFE-S04M	Particle Size: D50:˂4.2µm, D90:˂8.0µm	1. Increase Slip	1. Inks
	Average Bulk Density(g/L): ≤450	2. Anti-wear	2. Coatings & Paints
	Specific Surface Area(m2/g): ~4.0	3. Anti-scratch
PTFE-S05M	Particle Size: D50: 4.0-6.0µm, D90: 10.0µm	1. Increase Slip	1. Lubricants and grease
	Average Bulk Density(g/L): 400	2. Anti-wear	2. Rubbers
	Specific Surface Area(m2/g): 3.0-4.5		3. Plastics
			4. Coatings & Paints
PTFE-S11	Particle Size: D50:˂11µm,D90:˂15µm	1. Increase Slip	1. Plastics
	Average Bulk Density(g/L): ≤400	2. Anti-wear	2. Rubbers
	Specific Surface Area(m2/g): ~2.5
PTFE-S05R	Particle Size: D50:˂5.5µm, D90:˂10µm	1. Increase Slip	1. Plastics
	Average Bulk Density(g/L): ≤600	2. Anti-wear	2. Rubbers
	Specific Surface Area(m2/g): ~2.0	3. Anti-scratch
PTFE-S15R	Particle Size: D50:˂15µm, D90:˂30µm	1. Increase Slip	1. Plastics
	Average Bulk Density(g/L): ≤650	2. Anti-wear	2. Rubbers
	Specific Surface Area(m2/g): ~2.0	3. Anti-scratch
PTFE-D03M	Particle Size: D50:˂3.0µm, D90:˂6.0µm	1. Thickening	1. Lubricants and grease
	Average Bulk Density(g/L): ≤350	2. Increase Slip	2. Coatings & Paints
	Specific Surface Area(m2/g): ~10.0
PTFE-D04M	Particle Size: D50:˂3.5µm, D90:˂6.0µm	1. Thickening	1. Lubricants and grease
	Average Bulk Density(g/L): ≤300	2. Increase Slip	2. Coatings & Paints
	Specific Surface Area(m2/g): ~13.0
Note: "S": Suspension Polymerization; "D": Dispersion Polymerization; "R": Recycled Materials; "M": Special Modification Treatment

Feature

Excellent chemical resistance
Excellent thermal stability
Excellent dispersibility, miscibility and smoothness
Provide sand ripple effect
Improve the non-stickiness, anti-friction and scratch resistance of the product.

Packaging

Environmental friendly carton drum lined with PE bag, net weight 25kg/drum.

Whiteness

80-95%

Case Study

Preparation and Study of PTFE Micropowder Modified by Irradiation Technology

Liu, Shu Ling, et al. Key Engineering Materials, 2016, 689, 37-42.

PTFE is affected by irradiation, and exposing it to irradiation can easily produce micropowder. This work studies the effect of irradiation conditions such as atmosphere, temperature and irradiation dose on the structure of PTFE. The results show that with the increase of irradiation dose, the average particle size of the obtained PTFE micropowder decreases significantly, and the corresponding particle size also becomes uniformly distributed. The Tm, Tc and decomposition temperature of the obtained PTFE micropowder decrease linearly with the increase of irradiation dose.
Preparation procedure of irradiation-modified PTFE micropowder
· At room temperature and atmospheric pressure, the original PTFE was irradiated in air with an electron beam accelerator, and the accelerator was operated at 1.7 MeV and 32 μA. The irradiation dose was 5~4000 kGy, and the irradiated PTFE was mechanically ground to obtain micropowder samples.
· The resulting PTFE micropowders were then characterized by particle size and its distribution determination, thermal analysis, melt flow rate, and contact angle measurements.

PTFE Powder as Supercritical Carbon Dioxide Foaming Agent for the Preparation of Expanded Polypropylene

Yang, Chenguang, et al. Industrial & Engineering Chemistry Research, 23018, 57(5), 1498-1505.

Porous polytetrafluoroethylene (PTFE, 2~4μm) powder was used as supercritical carbon dioxide (scCO2) foaming agent to successfully prepare polypropylene (PP) foam with ultra-high cell density. The foam produced had a cell density ranging from 1010 to 1011 cells/cm3, which was 2 to 5 orders of magnitude higher compared to pristine PP foam.
Preparation procedure of PP/PTFE foam
· Before mixing, isotactic PP (iPP) pellets and PTFE micropowder were subjected to vacuum drying at 60 ℃ for 4 hours. Various blends of PP with PTFE micropowder at concentrations of 0.5, 3.0, and 5.0 weight % were prepared at 190 ℃ using a single screw melt compounder. Sheets of PP/PTFE with a thickness of 1 mm were fabricated through hot pressing. These samples were denoted as PP/PTFE(0.5), PP/PTFE(3.0), and PP/PTFE(5.0), respectively.
· A PP/PTFE sheet sample weighing 4-5 g was placed in an autoclave and pressurized with CO2 using a high-pressure liquid pump. The autoclave was then heated to the desired temperature and maintained at the set temperature and pressure for 2 hours and 7 minutes. Subsequently, the vessel was depressurized with CO2 vented in less than 10 seconds. The sample was then taken out of the autoclave and allowed to cool to room temperature.

Custom Q&A

What is the molecular weight of PTFE micro powder?

The molecular weight of PTFE micro powder is 30,000-200,000.

What is the particle size of PTFE micro powder?

The particle size of PTFE micro powder is 1-20 μm.

What are some unique properties of micronized PTFE powder?

Some unique properties of micronized PTFE powder include high crystallinity, good dispersibility, and easy blending with other materials.

How is ultra-fine PTFE powder described?

Ultra-fine PTFE powder is described as a white, low-molecular-weight, free-flowing powder with stable molecular structure.

What are some of the excellent properties of ultra-fine PTFE powder?

Some excellent properties of ultra-fine PTFE powder include excellent chemical resistance, good electrical insulation, and extremely high flame retardancy performance.

What are some of the uses of ultrafine PTFE powder in coatings?

Ultrafine PTFE powder can be used in various solvent-based coatings and powder coatings to improve mold release performance, surface scratch resistance, lubricity, and chemical and weather resistance.

Can PTFE powder be used as a solid lubricant?

Yes, PTFE powder can be used alone as a solid lubricant instead of a liquid lubricant.

How is PTFE powder used in ink?

PTFE powder can be used to improve the fluidity of ink.

What is the usual addition amount of PTFE powder as an anti-wear agent?

The usual addition amount of PTFE powder as an anti-wear agent is 1-3wt%.

What are some plastics that can benefit from the use of PTFE powder?

Plastics such as ABS, polycarbonate (PC), polyurethane (PU), and polystyrene (PS) can benefit from the use of PTFE powder as an efficient anti-drip agent.

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