PTFE fine powder

Item

    DF***1

Excellent

Grade A

Qualified

1

Smoothness & Cleaness

White sheet surface,fiber is

average,no gravel and metalic

powder,even sheet texture ≤1 for

mechanical impurity(≥0.5mm)or

organic impurity(≥2mm)

White sheet

surface,fiber is

average,no gravel

and metalic  powder,allow

0.5mm organic

Impurity.

2

Tensile Strength,(Mpa)≥

*4.0

*0.7

*8.6

3

Elong.At Rupture(%)≥

**0

4

Volume Density,(g/L)

**5±**0

5

Extrude pressure ( RR**0)Mpa

9.7±4.2

6

Average Grain ( μ m)

**5±**0

7

Moisture Content.(%)≤

0.*4

8

Melting Point(°C

**2±5

9

Stand Relative Density

2.**0

*0

Thermal Inst,Index ≤

*0

*1

Electric Strength(KV/MM)≤

2.1

****-

*2

Dielectric Dissipation factor

3**0¯4

*3

For check

Execute according to requirement of HG/T********9

*4

For process

Paste extrusion

*5

usage

Its suitable for unsinterted tape

*6

Packing,Storage Transporation

1. PTFE is packed in double layer PVC bags indide 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,,packager.

2. PTFE should be stored in clean dry warhouse to prevent

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.