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High Viscosity UV Stabilized PC Resin Particles for Ophthalmic Lenses
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High Viscosity UV Stabilized PC Resin Particles for Ophthalmic Lenses

Dongguan Forever Co.,Ltd is the manufacture of the china origin cheap UV stablized PC polycarbonate Granules Polymer Resin
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  • OQ3820-XH

  • Forever

OQ3820-XH has outstanding impact resistance, good creep resistance and dimensional stability, heat resistance, low water absorption, non-toxic, and excellent dielectric properties. The reason why OQ3820-XH has a large market capacity is due to its comprehensive and balanced performance.


General

Form                                        Resin Pellets

Feature                                    Outdoor                            High Viscosity

Usage                                      Appliances                        Lenses                              Electronic Displays

Physical                                                                                Nominal Value                                       Test Method

Density / Specific Gravity

1.19 g/cm³                                            ASTM D792

1.20 g/cm³                                            ISO 1183

Melt Mass-Flow Rate, MFR(300 °C;1.2 kg)                          7.4 g/10min                                           ASTM D1238

Melt Volume-Flow Rate, MVR(300 °C;1.2 kg)                     6.00 cm³/10 min                                     ISO 1133

Molding Shrinkage, Across Flow(3.2 mm)                          0.50 - 0.70 %                                          Internal Method

Molding Shrinkage, Flow(3.2 mm)                                      0.60 - 0.80 %                                          Internal Method

Water Absorption, Saturation(23 °C)                                  0.32 %                                                    ISO 62

Water Absorption, Equilibrium(50% RH;23 °C)                  0.15 %                                                   ISO 62

Mechanical                                                                            Nominal Value                                     Test Method

Tensile Modulus

50 mm/min                                                                         2270 MPa                                              ASTM D638

2400 MPa                                             ISO 527-2/1

Tensile Strength, Yield

50 mm/min;Type I                                                              62.0 MPa                                                ASTM D638

61.0 MPa                                                ISO 527-2/50

Tensile Strength, Break

50 mm/min;Type I                                                              72.0 MPa                                                ASTM D638

71.0 MPa                                                ISO 527-2/50

Tensile Elongation, Yield

50 mm/min;Type I                                                              6.3 %                                                       ASTM D638

6.0 %                                                     ISO 527-2/50

Tensile Elongation, Break

50 mm/min;Type I                                                              130 %                                                     ASTM D638

140 %                                                     ISO 527-2/50


Flexural Modulus

1.3 mm/min;50 mm;Span

2 mm/min

2410 MPa

2200 MPa

ASTM D790

ISO 178

Flexural Stress, at Yield(2 mm/min)

94.0 MPa

ISO 178

Flexural Stress, Yield(1.3 mm/min;50 mm;Span)

93.0 MPa

ASTM D790

C harpy Notched Impact Strength

-30 °C;80

23 °C;80

15 kJ/m²

75 kJ/m²

ISO 179 1eA

C harpy Unnotched Impact Strength

-30 °C;80

23 °C;80

No Break

No Break

ISO 179 1eU

Notched Izod Impact

-30 °C

23 °C

-30 °C;80*10*3 mm

23 °C;80*10*3 mm

14 J/m

920 J/m

12 kJ/m²

70 kJ/m²

ASTM D256

ASTM D256

ISO 180/1A

ISO 180/1A

Unnotched Izod Impact Strength

-30 °C;80*10*3 mm

23 °C;80*10*3 mm

No Break

No Break

ISO 180/1U

Instrumented Dart Impact, Total Energy(23 °C)

85.0 J

ASTM D3763


Thermal

Nominal Value

Test Method

Deflection Temperature Under Load, Unannealed



0.45 MPa;3.2 mm

139 °C

ASTM D648

1.8 MPa;3.2 mm

129 °C

ASTM D648

1.8 MPa;120*10*4 mm;4 mm;100 mm;Span

126 °C

ISO 75-2/Ae

Vicat Softening Temperature



50 °C/h;50 N;Rate A;Loading 2

150 °C

143 °C

144 °C

ASTM D1525  ISO 306/B50   ISO 306/B120

Ball Pressure Test(73 - 77 °C)

Pass

IEC 60695-10-2

CLTE, Flow



-40 - 40 °C

7.7E-5 cm/cm/°C

ASTM E831

-40 - 40 °C

7.6E-5 cm/cm/°C

ISO 11359-2

CLTE, Transverse



-40 - 40 °C

7.7E-5 cm/cm/°C

ASTM E831

-40 °C

7.9E-5 cm/cm/°C

ISO 11359-2

Processing


Nominal Value

Drying Temperature<Injection>


120 °C

Drying Time<Injection>


3.0 - 4.0 hr

Suggested Max Moisture<Injection>


0.020 %

Suggested Shot Size<Injection>


40 - 60 %

Rear Temperature<Injection>


290 - 310 °C

Middle Temperature<injection>


300 - 320 °C

Front Temperature<Injection>


310 - 330 °C

Nozzle Temperature<Injection>


305 - 325 °C

Processing Temp, Melt<Injection>


310 - 330 °C

Mold Temperature<Injection>


80 - 115 °C

Back Pressure<Injection>


0.300 - 0.700 MPa

Screw Speed <Injection>


40 - 70 rpm

Vent Depth <Injection>


0.025 - 0.076 mm

Drying Time, Cumulative<Injection>


48 hrs


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