PPS BZ-GF32

Lubricating PPS

Product features

This kind of product is one of the high performance lubrication reinforced polyphenylene sulfide(PPS)  products manufactured by our company. It is mixed granulation by adding glass fiber, ptfe and related additives through twin screw extruder on the basis of PPS resins. It has the characteristics of high wear resistance, good mechanical properties, high modulus, high temperature resistance and creep resistance, chemical corrosion, flame retardant, etc. It also has the characteristics of good processing performance and small shrinkage rate.

Product applications

Because of its outstanding characteristics, it is widely used in machinery and chemical industry. It is especially suitable for high pressure, high temperature structural parts and wear-resisting parts in the environment with corrosive solvent. For example: high temperature axle sleeve, sliding bearing, etc. There is also a wide range of USES in the aerospace industry.

Product performance

 

Test Items

 

      Unit 

 

   Performance

 

  Test standard

Density

g/cm3

1.56

GB/T 1033

Molding Shrinkage

%

0.25/0.6

GB/T 15585

Water Absorption

%

0.02

GB/T 2914

Tensile Strength

MPa

135

GB/T 1040

Elongation at break

%

0.9

GB/T 1040

Bending Strength

MPa

210

GB/T 9341

Flexural Modulus

MPa

1.0×104

GB/T 9341

Notched izod impact strength

KJ/m2

12.5

GB/T 1843

Melting Point

280

GB/T 4608

Heat Distortion Temperature/

HDT(1.8Mpa)


262

GB/T 1634

Volume Resistivity ×1015

Ω.m

5

GB/T 1410

Surface Resistivity ×1014

Ω

5

GB/T 1410

Permittivity 1MHz

/

4

GB/T 1409

Dielectric Strength

KV/mm

16

GB/T 1408


        Flame Retardant

/

V-0

GB/T UL94

       The Coefficient of Friction
     /
       0.40 GB/T 3960
       Grinding crack width     mm          5.5   GB/T 3960

       Abrasion quantity

mg/120min

        5.0   GB/T 3960


Conditions:

1. Material drying process

Temperature: 130 ~ 150 ℃ *4 hours

Note: if any metal insert molding products, need to preheat insert: metal insert preheating temperature: 130 ~ 140 ℃, time: constant temperature for 1 hour

2. Injection molding process

Mold temperature: 120 ~ 150 ℃ (can be set according to the product structure situation)

Cylinder temperature:

The front: 290 ~ 300 ℃

In the middle: 300 ~ 320 ℃

The last period: 310 ~ 330 ℃

Nozzle: 310 ~ 330 ℃

Injection pressure: 80~150MPa (70-95%)

Injection speed: medium speed ~ high speed.

Pressure holding pressure: 30-70MPa (20-45%)

Meter: the residual amount is set 5-10mm.

Loose back: 3-5 mm

Screw rotation speed: 50-120rpm.

Back pressure: 0.2-5MPa.

Injection molding time: according to the size of the parts, when the mold is filled with mold, and the surface is basically cooling is good.

 

3. Post-processing technology: determined by the size of the parts.

Processing temperature: 160 ~ 180 ℃, the processing time: 4 ~ 8 hours

 

 


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