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Foams
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Home
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Preparation of Foams
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Hand mix
The foams can be prepared by hand mix laboratory
procedure or with a stirrer of 2" diameter at 2500 rpm. The
polyol. diethanolamine, silicone surfactant and amine catalyst were
blended for 1 minute in a 2 liter (1/2 gallon) polyethylene or
paper container and with the isocyanate for 7 seconds. The mixture
is poured in an open box of 26 x 26 cm (10" x 10") or an
aluminum mold sprayed with release agent.
The raise time can be measure with a ultrasonic
foam height meter.
This instrument permits the measurement of rise time, start of
rise, max. rising height, rise speed and shrinkage.
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Most of the test methods for the raw materials for polyurethanes and
the final products are described by ASTM
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TEST Standard Test Methods
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| Flexible Cellular
Materials-Slab, Bonded, and Molded Urethane Foams |
D3574-95 |
| Transmitted Shock
Characteristics of Foam-in-Place Cushioning Materials |
D4168-95 |
| Compressive
Properties Of Rigid Cellular Plastics |
D1621-00 |
| Apparent Density of
Rigid Cellular Plastics |
D1622-98 |
| Tensile And Tensile
Adhesion Properties Of Rigid Cellular Plastics |
D1623-78(1995) |
| Response of Rigid
Cellular Plastics to Thermal and Humid Aging |
D2126-99 |
| Water Absorption of
Rigid Cellular Plastics |
D2842-97 |
| Open-Cell Content of
Rigid Cellular Plastics by the Air Pycnometer |
D2856-94(1998) |
| Flame Height, Time
of Burning, and Loss of Mass of Rigid Thermoset Cellular Plastics in a
Vertical Position |
D3014-99 |
| Standard Specification for Preformed Cellular
Plastic Joint Fillers for Relieving Pressure |
D3204-93(1998) |
| Cell Size of Rigid
Cellular Plastics |
D3576-98 |
| Polyurethane "Poured in Place" Thermal
Break Materials |
D5140-95 |
| Standard Guide for Application of New Spray
Applied Polyurethane Foam and Coated Roofing Systems |
D5469-93 |
| Open Cell Content of
Rigid Cellular Plastics |
D6226-98 |
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Thermal testing
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| Steady-State
Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus |
C518-98 |
| Standard Symbols for Heat Transmission |
C108-46(1998 |
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| Surface
Burning Characteristics of Building Materials |
E84-99 |
| Standard Terminology of Fire Standards |
E176-99a |
| Standard Guide for Measurement of Gases
Present or Generated During Fires |
E800-99 |
| Fire Testing
of Real Scale Upholstered Furniture |
E1537-99 |
| Fire Testing
of Mattresses |
E1590-99 |
Other tests not ASTM
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Fogging
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DIN 57201 B
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Fogging VOC, 90°C 30 min, GC/MS
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Daimler Chrysler PB VWT 709
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HACS Humid Aged Compression Sets
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ISO 2440
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Hardness CLD 40 %
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DIN 53577
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ILD and SAG factor
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DIN 53576
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Fire tests give only an indication how a foam might
perform under fire conditions, it does not measure the performance
under actual fire conditions. |
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Last edited on:
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November 22, 2006
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Copyright®, Design, Layout and Technical Content by:
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