No.

Item

DF-201

Excellent

Grade A

Qualified

1

Smoothness&clearness

White sheet sruface,fiber is average, no gravel and metallic powder,even sheet texture≤1 for mechanical impurity or organic impurity.

White sheet surface,fiber is average,no gravel and metallic powder,allow 0.5mm organic impurity.

2

Tensile strength(Mpa)≥

24

27

25.5

3

Elong.At Rupture(%)≥

350

4

Volume Density(g/L)

475±100

5

Extrude Pressure(RR100)(Mpa)

9.7±4.2

6

Average Grain(um)

525±150

7

Moisture content(%)≤

0.04

8

Melting point(°C)

327±5

9

Standard Relative Density

2.2

10

Thermal Inst. Index≤

50

11

Electric Strength,MV/M ≤

2.1

12

Dielectric Dissipation Factor ≤

3x10-4

13

For check

Execute according to requirment of HG/T3028-1999

14

For process

Paste Extrusion

15

Usage

It is suitable for making unsintered tape.

16

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