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This is the free Material Data Center Datasheet of PLEXIGLAS® Softlight 7H df22 - PMMA - Röhm GmbH

Material Data Center offers the following functions for PLEXIGLAS® Softlight 7H df22:
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Processing/Physical Characteristics - Mechanical properties - Thermal properties - Electrical properties - Optical properties - Other properties - Test specimen production - Diagrams
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Product Texts

Productprofil:

PLEXIGLAS® Softlight 7H df22, based on PLEXIGLAS® 7H, is characterized by diffuse scattering of light.

 

Typical properties of PLEXIGLAS® molding compound are

 

  1. good flow
  2. high mechanical strength, surface hardness and mar resistance
  3. very good weather resistance.

 

Special properties of PLEXIGLAS® Softlight 7H df22 are

 

  1. very good lightdiffusion combined with excellent light transmission
  2. matte surfaces can be obtained by varying the extrusion parameters.


Application:

Used for extruding profiles and sheets for lighting engineering applications

Example:

luminaire covers, displays, projection screens and similar lighting applications

Processing:

PLEXIGLAS® Softlight 7H df22 can be processed on extruders with 3-zone general purpose screws for engineering thermoplastics.

The matte finish of profile surfaces depends very much on machine design (calibrating unit, polishing rolls) and cooling conditions. It can be enhanced by controlled temperature reduction.

Physical Form / Packaging:

PLEXIGLAS® Softlight df molding compounds are supplied as pellets of uniform size, packaged in 25kg polyethylene bags; other packaging on request.

Processing/Physical CharacteristicsValueUnitTest Standard
ISO Data
Melt volume-flow rate, MVR 1.1 cm³/10min ISO 1133
Temperature 230 °C -
Load 3.8 kg -
Mechanical propertiesValueUnitTest Standard
ISO Data
Tensile Modulus 3400 MPa ISO 527
Stress at break 70 MPa ISO 527
Strain at break 6 % ISO 527
Charpy impact strength, +23°C 20 kJ/m² ISO 179/1eU
Thermal propertiesValueUnitTest Standard
ISO Data
Glass transition temperature, 10°C/min 108 °C ISO 11357-1/-2
Temp. of deflection under load, 1.80 MPa 97 °C ISO 75-1/-2
Temp. of deflection under load, 0.45 MPa 101 °C ISO 75-1/-2
Vicat softening temperature, B 105 °C ISO 306
Coeff. of linear therm. expansion, parallel 63 E-6/K ISO 11359-1/-2
Electrical propertiesValueUnitTest Standard
ISO Data
Volume resistivity >1E13 Ohm*m IEC 62631-3-1
Surface resistivity 1E13 Ohm IEC 62631-3-2
Optical propertiesValueUnitTest Standard
ISO Data
Luminous transmittance 86 % ISO 13468-1, -2
Other propertiesValueUnitTest Standard
Density 1190 kg/m³ ISO 1183
Test specimen productionValueUnitTest Standard
ISO Data
Injection Molding, melt temperature 252 °C ISO 294
Injection Molding, mold temperature 65 °C ISO 294
Injection Molding, injection velocity 195 mm/s ISO 294
Diagrams
Viscosity-shear rate , PLEXIGLAS® Softlight 7H df22, PMMA, Röhm
Shearstress-shear rate , PLEXIGLAS® Softlight 7H df22, PMMA, Röhm
Dynamic Shear modulus-temperature , PLEXIGLAS® Softlight 7H df22, PMMA, Röhm
Stress-strain , PLEXIGLAS® Softlight 7H df22, PMMA, Röhm
Secant modulus-strain , PLEXIGLAS® Softlight 7H df22, PMMA, Röhm
Tensile modulus-temperature , PLEXIGLAS® Softlight 7H df22, PMMA, Röhm
Characteristics
Processing
Profile Extrusion, Sheet Extrusion, Other Extrusion
Delivery form
Pellets
Additives
Release agent
Special Characteristics
Light stabilized or stable to light, U.V. stabilized or stable to weather
Features
Light Diffusing
Regional Availability
North America, Europe, Asia Pacific, South and Central America, Near East/Africa
Other text information
Profile extrusion
PREPROCESSING
Predrying temperature: max. 95 °C
Predrying time in a desiccant-type drier: 2 - 3 h
PROCESSING
Melt temperature: 220 - 260 °C
Die temperature: 220 - 260 °C
Sheet extrusion
PREPROCESSING
Predrying temperature: max. 95 °C
Predrying time in a desiccant-type drier: 2 - 3 h
PROCESSING
Melt temperature: 220 - 260 °C
Die temperature: 220 - 260 °C
Chemical Media Resistance
Acids
Acetic Acid (5% by mass) (23°C)
Citric Acid solution (10% by mass) (23°C)
Lactic Acid (10% by mass) (23°C)
Sulfuric Acid (38% by mass) (23°C)
Sulfuric Acid (5% by mass) (23°C)
Bases
Sodium Hydroxide solution (35% by mass) (23°C)
Sodium Hydroxide solution (1% by mass) (23°C)
Ammonium Hydroxide solution (10% by mass) (23°C)
Hydrocarbons
n-Hexane (23°C)
iso-Octane (23°C)
Standard Fuels
Standard fuel without alcohol (pref. ISO 1817 Liquid C) (23°C)
Standard fuel with alcohol (pref. ISO 1817 Liquid 4) (23°C)
Diesel fuel (pref. ISO 1817 Liquid F) (23°C)
Salt solutions
Sodium Carbonate solution (20% by mass) (23°C)
Sodium Carbonate solution (2% by mass) (23°C)
Other
50% Oleic acid + 50% Olive Oil (23°C)
Water (23°C)
Disclaimer
Copyright Altair Engineering GmbH. Altair Engineering GmbH assumes no liability for the system to be free of errors. The user takes sole responsibility for the use of this data under the exclusion of every liability from Altair Engineering GmbH; this is especially valid for claims of compensation resulting from consequential damages. Altair explicitly points out that any decision about the application of materials must be double checked with the producer of this material. This includes all contents of this system. Copyright laws are applicable for the content of this system.
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