Oil-absorbing polyurethane foam material
A polyurethane foam and oil-absorbing technology, applied in the field of oil-absorbing polyurethane foam materials, can solve the problems of low open cell rate, cannot be used repeatedly, limited oil absorption efficiency, etc., and achieves high comprehensive efficiency, strong oil capacity, and high open cell rate. Effect
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Example Embodiment
[0061] Example 1
[0062] Example 1 is a comparative example, using an open-cell rigid polyurethane foam formula. The formula table is as follows:
[0063] Component one:
[0064] Isocyanate PM200 152 parts
[0065] Component two:
[0066] Ethylenediamine polyether polyol KP043 (hydroxyl value 770±30KOH mg / g) 15 parts
[0067] Polyoxypropylene glycol KP046 (hydroxyl value 100±10KOH mg / g) 15 parts
[0068] Sucrose polyether polyol KP041 (hydroxyl value 430±20KOH mg / g) 50 parts
[0069] Sorbitol / glycerol polyether polyol KP045 (hydroxyl value 500±20KOH mg / g) 20 parts
[0070] 3 parts of triethanolamine
[0071] Surfactant B8462 2 parts
[0072] N,N-Dimethylcyclohexylamine 3 parts
[0073] 3.5 parts of water
[0074] 40 parts of foaming agent 141b
[0075] Mix the ingredients in the second component of the formula table uniformly to make the second component.
[0076] Mix component one and component two according to the formula ratio, mix and stir on an electric mixer for 8 seconds, and pour it into...
Example Embodiment
[0080] Example 2
[0081] Example 2 is a comparative example, using a soft polyurethane foam formula, the formula table is as follows:
[0082] Component one:
[0083] Isocyanate Voranate T-80 122 parts
[0084] Component two:
[0085] Aliphatic polyester polyol KP056 (hydroxyl value 110±5KOH mg / g) 100 parts
[0086] Surfactant DC5526 2 parts
[0087] Catalyst Dabco2039 2 parts
[0088] 8 parts water
[0089] 10 parts of tris(2-chloropropyl) phosphate
[0090] Mix the ingredients in the second component of the formula table uniformly to make the second component.
[0091] Mix component one and component two according to the formula ratio, mix and stir on an electric mixer for 8 seconds, and pour it into an open mold to make it foam freely. The material foaming molding time is 5 minutes. After the foam is fully cured, samples are prepared and the properties are measured.
[0092] The density of the flexible polyurethane foam material prepared in Example 2 was 21.2 kg / m 3 , The expansion ratio ...
Example Embodiment
[0093] Example 3
[0094] Example 3 is an example of a semi-rigid polyurethane foam material with low density and high open cell ratio of the present invention. Polyester polyol is used to improve the lipophilicity of the foam material. The formula table is as follows:
[0095] Component one:
[0096] Isocyanate PM200 142 parts
[0097] Component two:
[0098] Highly active polyoxypropylene triol KP047 (hydroxyl value 35±3KOH mg / g) 45 parts
[0099] Polyoxypropylene glycol KP046 (hydroxyl value 100±10KOH mg / g) 50 parts
[0100] Aliphatic polyester polyol KP056 (hydroxyl value 110±5KOH mg / g) 5 parts
[0101] Glycerin 3 parts
[0102] Surfactant L580 2 parts
[0103] N,N-Dimethylcyclohexylamine 2 parts
[0104] 25 parts water
[0105] 10 parts of tris(2-chloropropyl) phosphate
[0106] Mix the ingredients in the second component of the formula table uniformly to make the second component.
[0107] Mix component one and component two according to the formula ratio, mix and stir on an electric mixer...
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