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PTFE Molding Powder

PTFE Molding Powder

Specification of PTFE Molding Powder Micronized Particle DF16:
1:Smoothness&Clearness:White Sheet surface
2:Tensile Strength: 29Mpa Min
3:Elong. at Rupture:300% Min
4:Moisture: 0.04% Min
5:Package: 25kg Per Drum

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Product Details

PTFE Molding Powder Micronized Particle DF16

PTFE (polytetrafluoroethylene) granular molding powders are ideal for molding many different products and stock shapes, such as PTFE rods, PTFE tubes, and PTFE sheets. Products fabricated from  PTFE stock shapes are unaffected by nearly all chemicals and feature superior electrical properties. These products, some of which are rated for continuous service at 260°C (500°F), also provide exceptional low-temperature toughness, plus unique adhesion and flame resistance.


No.

Item

DF-16



Grade A

Qualified

1

Smoothness&clearness

white sheet  surface,even texture,no metal residue    quantity(<0.5mm)≤2

2

Tensile strength(Mpa)≥

29

27.4

3

Elong.At Rupture(%)≥

300

280

4

Volume Density(g/L)

300-450

5

Residue on Sieve(65um)(%)≤

3

6

Moisture content(%)≤

0.04

7

Melting point(°C)

327±5

8

Stand Relative Density

2.130-2.160

9

Thermal Inst. Index≤

20

10

Electric    Strength(Kv/mm)

60

11

For check

Executed According to requiement of HQ/T2903-1997

12

For process

For molding

13

Usage

The resin are mainly used as insulating film for electric,the products of thin wall,seal,gasket,club,panel,tube,axletree,seal ring,and loop etc.

14

Packing,storage,Transportation

1.PTFE is packed in double layer PVC bags inside and in hard circular barrels outside. On the barrel,there should be attached label and quality certificate, on which there  are brand,trademark,executive criterion,type,grade,lot No. and net content,pack date,checker and packer.

2.PTFE should be stored in clean dry warehouse to pervent from dust,moisture,etc,foreign matters.

3.The products are transported according to non-dangerous products.Heat,moisture,freezing and strong shock should be avoided during transportation.Over-bumpiness and compression is apt to make the resin bind together.


Processing

PTFE granular molding powders are processed by preparing a preform, sintering the preform, and then fabricating functioning machined parts from the sintered stock shape. Filled compounds are easily produced from PTFE granular powders by mixing 5% to 60%, by weight, of inorganic fillers that selectively enhance properties.

Preforming
Adequate preform pressures are required to maximize end-use performance. Typical pressures range from 3,000 to 4,500 psi with dwell times varying with preform size. Stock shapes preformed at lower pressures exhibit inferior physical properties (specific density, tensile strength, elongation, flex life), electrical properties, and permeation and chemical resistance.

Sintering
Adequate sintering requires a programmable oven. The temperature is slowly raised from room temperature to 363° to 382°C (685° to 720°F). Hold times at these temperatures vary with part geometry and dimensions. The oven temperature is then slowly lowered to room temperature. Stock shapes that are not properly sintered exhibit inferior physical properties (specific density, tensile strength, elongation, flex life), electrical properties, and permeation and chemical resistance.

Fluoropolymer PTFE Molding Powder.jpg

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