- Details
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Category: Products
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Published: Friday, 26 October 2012 18:54
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Written by Super User
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Hits: 13803

UROSAN started the production of “Filter Foam” and related “Filter Elements” for the first time in our country.
Fields of Use:
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Vacuum cleaner filter
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Suede shoes cleaning
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Manufacturing foams which extend the shelf lives of vegetables and fruits
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Air filters
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All kinds of water and fuel oil filters
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Aquarium filters
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Ceramic filter production
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Polishing industry
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Printer cartridges
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Ventilation units and air conditioning plants
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Respiratory protective mask filters
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Fan Coil units
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Compressor production
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Cushions in wet places such as chaise longue, yachts
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Automobile air filters
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Acoustic tools (such as headphones, speakers, microphones), whitewash rollers, emission control systems and personal care products (such as make-up foams)
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Prevention of inflammation of fuel oil tanks and fuel oil agitation of the vehicles such as race cars and combat aircrafts
Main properties sought in filter foams
Being Pore Controlled:
The pore sizes of the foams should be manufactured according to the size of the particles that they will filter and these pores should be in equal heights, and distributed homogenously within the body. The sizes can be expressed in micron and they are also expressed in PPI ("Pores Per Inch") unit so as to provide ease in purchases and sales. This size is obtained as a result of counting the pores by a magnifying glass along 1 linear inch. We can thus easily understand that pores become smaller as the number increases.
Having Open Pores:
Foam pores consist of about 30% closed cells before making “Filter”. These foams are later fully opened by a method called “Reticulation”. Thus, fluids such as air or water can fully pass through.
How does the “reticulation” of the foam affect its physical properties?
All physical properties of the foam, except for its burning property, are positively affected. Tensile strength increases between 10-32% and tear strength increases by 95%. Permanent deformation decreases from 6-8% to 3-4%. It means it is stronger and the foam does not collapse. On the following table shows the physical changes of the foams with equal intensity after being reticulated. Burning speed will naturally increase as a result of opening pores. Users need to know that. Besides, UROSAN makes “flame retardant” productions at every quality.
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Polyether
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Polyester
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Physical Properties
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Before
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After
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Before
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After
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Reticulation
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Reticulation
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Reticulation
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Reticulation
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Tensile Strength
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>105
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139
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>120
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132
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Elongation at Break
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>115
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168
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>175
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213
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Tear Strength
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>3,5
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6,9
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>4
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7,9
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Permanent Deformation
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>6
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3
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>8
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4,7
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Combustion
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<18
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23,4
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<12
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18,8
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Air Permeability and Pressure Drop
For the reticulated foam is the most important feature to search is "Air Permeability". According to tests conducted of ISO 7231 on 25 mm thickness of the sample is measured 1dm3'lük air quantity flowing in the field. Higher values mean pore opening by the growth of pores, as this value increases, the shrinkage decreases. Another concept is "Pressure Drop". This concept will be used in the medium to be filtered in the fan or pump out of the standard value shows how much pressure loss incurred. Urosan produce products according to the international norms of quality control laboratories for testing and transmits this information to the user.
Reticulated Polyether Foams
Flexibility due to the characteristics of this type of foam used in upholstery and more. Besides these features, but is highly resistant to water, i.e. they are not hydrolyzed in aqueous media is a reason to be preferred. The second is their reason for being economical price.
Type of Foams
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Number of Cell (ad/Inc)
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Density
(kg/m3)
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Firmness (N) ISO 2439 (ILD %40)
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Firmness
ASKER F
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Tensile Strength(kPa) ISO 1789
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Elongation at Break (%) ISO 1789
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Tear Resistance
(N/cm) ASTM D.3547
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Air Permability
(dm3/s) ISO 7231
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Flame Rate (cm/dak) MVSS 302
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D22 RET. 10 PPI
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10 (+\-3)
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22±2
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165 ±%15
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39 (+\-%15)
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≥80
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≥90
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≥4
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≥6
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-
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D22 RET.20 PPI
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20 (+\-4)
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22±2
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155 ±%15
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39 (+\-%15)
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≥100
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≥100
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≥3,5
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≥4,5
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-
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D22 RET. 30 PPI
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30 (+\-5)
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22±2
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150 ±%15
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39 (+\-%15)
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≥110
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≥120
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≥3
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≥3
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-
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D28 RET. 20 PPI
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20 (+\-4)
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28±2
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170 ±%15
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41(+\-%15)
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≥100
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≥100
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≥5
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≥4,5
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-
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D28 RET. 30 PPI
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30 (+\-5)
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28±2
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185 ±%15
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41 (+\-%15)
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≥110 |
≥120 |
≥4 |
≥3 |
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D28 RET. 45 PPI
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37-53
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28±2
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180 ±%15
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-
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≥125
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≥130
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≥5,5
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≥2,5
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-
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D28 RET. 60 PPI
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50-70
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28±2
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185 ±%15
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-
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≥130
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≥140
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≥5,5
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≥1,5
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-
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Reticulated Polyester Foams
The mechanical properties are superior. They are resistant to oils and solvents. They are resistant to oil and oil derivatives.
Type of Foams
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Number of Cell (ad/Inc)
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Density
(kg/m3)
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Firmness (N) ISO 2439
(ILD %40)
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Tensile Strength (kPa) ISO 1789
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Elongation at Break
(%)ISO 1789
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Tear Resistance (N/cm) ASTM D.3547
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Air Permeability
(dm3/s)
ISO 7231
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Flame Rate (cm/dak) MVSS 302
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D30 20 PPI
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16-24
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30±2
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140 ±%15
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≥60
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≥80
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≥5
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≥4,5
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≤23
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D30 30 PPI
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25-35
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30±2
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140 ±%15
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≥60
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≥80
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≥5
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≥3,5
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≤20
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D30 45 PPI
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37-53
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30±2
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160 ±%15
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≥110
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≥140
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≥6
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≥2
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≤16
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D30 60 PPI
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50-70
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30±2
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160 ±%15
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≥110
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≥150
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≥6
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≥1,3
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≤14
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D45 80 PPI
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70-90
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45±3
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240 ±%15
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≥120
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≥150
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≥6
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≥0,5
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≤10
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- Details
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Category: Products
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Published: Friday, 26 October 2012 18:54
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Written by Super User
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Hits: 12009

Polyester Foams have lower flexibility properties. Their Push-Release curves are far from each other. However, they have higher physical resistances. They are more durable against abrasion, friction, tear and more resistant against chemicals (such as detergents, fry cleaning solvents) as well. Therefore, they are used in the fields where rather technical requirements are prominent such as automotive industry, sound insulation, painting works etc. One of the important fields of use is textile industry (wadding, brassiere). They are preferred in cloth laminations because they are very suitable for flame lamination process. In addition to sunlight endurance it is higher than other foams and another important property is their capability of being shaped by being hot pressed. This property is very important in the preparation of automotive cases. Polyester Foam can also be manufactured in “special types”. The most popular special types are car washing Foam and Hydrophilic Foam.
Car washing Foam:
It is solid and has big pores. They were used for scratching and cleaning the insects which stick the windows of the automobiles in the long distances and named after that. Today, they are used in wall paint applications and other cleaning works.
Hydrophilic Foam:
These foams draw water into their body and keep it there. They are used in impregnation works, cosmetics and cleaning works.
Type of Foams |
Density
kg/m3
ISO 845 |
Firmness (N)
ISO 2439
(ILD%40) |
Firmness
ASKER F |
Tensile Strength (kPa)
İSO 1789 |
Elongation at Break (%)
ISO 1789 |
Tear Resistance
(N/cm) ASTM.D 3547 |
Flame Rate (cm/dak)
MVSS 302 |
Number of Cell
(ad/Inc) |
D22 POLYESTER
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22±2
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180±%15
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43 (+\-%15) |
≥120 |
≥185
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≥5 |
≤18
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36±5
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D23 POLYESTER
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23±2
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188±%15
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45 (+\-%15) |
≥120 |
≥185
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≥5 |
≤18
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38±5
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D23 POLYESTER SERT
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23±2
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210±%15
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50 (+\-%15) |
≥135 |
≥145
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≥5 |
≤18
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38±5
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D24 POLYESTER
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24±2
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195±%15
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47 (+\-%15) |
≥120 |
≥180
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≥4,5 |
≤15
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40±5
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D24 CAM SÜNGERİ
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24±2
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220±%15
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53 (+\-%15) |
≥70 |
≥80
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≥3 |
≤20
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24±5
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D26 POLYESTER
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26±2
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150±%15
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- |
≥115 |
≥120
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≥4 |
≤15
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40±5
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D28 POLYESTER
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28±2
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160±%15
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39 (+\-%15) |
≥150 |
≥185
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≥5 |
-
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40±5
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D30 POLYESTER
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30±3
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210±%15
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51 (+\-%15) |
≥120 |
≥175
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≥4 |
≤12
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43±5
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D30 POLYESTER LOWFOG
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30±3
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210±%15
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51 (+\-%15) |
≥120 |
≥175
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≥4 |
≤12
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38±5
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D33 POLYESTER
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33±3
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160±%15
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- |
≥115 |
≥125
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≥4 |
-
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43±5
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D35 POLYESTER
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35±3
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180±%15
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- |
≥120 |
≥130
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≥4,5 |
-
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43±5
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D40 POLYESTER
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40±3
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210±%15
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- |
≥125 |
≥135
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≥4 |
-
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44±5
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D45 POLYESTER
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45±3
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250±%15
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60 (+\-%15) |
≥110 |
≥135
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≥3,5 |
≤11
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48±5
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D50 POLYESTER
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50±3
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250±%15
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60 (+\-%15) |
≥120 |
≥150
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≥4 |
≤11
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48±5
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