Biobased micro-porous polyurethane material and preparation method thereof
A polyurethane material and bio-based technology, applied in the field of bio-based microporous polyurethane materials and preparation, can solve the problems of poor heat resistance, weather resistance and antistatic properties, achieve low surface hydroxyl activity, increase internal friction, and benefit The effect of product performance
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Embodiment 1
[0039] Component A includes the following raw materials:
[0040] 22 parts of polypropylene glycol-glycerol ether,
[0041] 4.2 parts of ethylene glycol,
[0042] 2.6 parts of 3,3-dichloro-4,4-diaminodiphenylmethane,
[0043] 0.25 parts of water,
[0044] 0.28 parts of silicone oil,
[0045] Triethylenediamine (A33) / stannous octoate 0.14 / 0.06 parts;
[0046] Component B includes the following raw materials:
[0047] Nano wollastonite 2.3 parts,
[0048] Bio-based polyether polyol C (water content less than 0.1%) 24.3 parts,
[0049] 42 parts of diphenylmethane diisocyanate.
[0050] The specific preparation method is as follows:
[0051] A component preparation process: 22 parts of polypropylene glycol-glycerol ether (functionality is 3, average molecular weight is 2950, its model is: EPG-217, manufacturer is: Yantai Guangshun Chemical Products Co., Ltd., solid content: 99.9%.), 4.2 parts of ethylene glycol, 2.6 parts of 3,3,3-dichloro-4,4,-diaminodiphenylmethane, 0...
Embodiment 2
[0056] Component A includes the following raw materials:
[0057] 30 parts of polypropylene glycol-glycerol ether,
[0058] 5 parts of propylene glycol,
[0059] 2 parts of dimethylthiotoluenediamine,
[0060] 0.2 parts of water,
[0061] 0.2 parts of silicone oil,
[0062] Triethylenediamine / dibutyltin dilaurate 0.17 / 0.08 parts;
[0063] Component B includes the following raw materials:
[0064] Nano wollastonite 3.5 parts,
[0065] Bio-based polyether polyol C (water content less than 0.1%) 24 parts,
[0066] 35 parts of diphenylmethane diisocyanate.
[0067] The specific preparation method is as follows:
[0068] A component preparation process: 30 parts of polypropylene glycol-glycerol ether (functionality is 3, average molecular weight is 4000), 5 parts of propylene glycol, 2 parts of dimethylthiotoluenediamine, 0.2 parts of water, 0.2 parts Silicone oil, 0.17 parts of 33% triethylenediamine solution (A33) and 0.08 parts of dibutyltin dilaurate were stirred at 20...
Embodiment 3
[0072] Component A includes the following raw materials:
[0073] 40 parts of polypropylene glycol,
[0074] 3.5 parts of 1,4-butanediol,
[0075] Dimethylthiochlorophenylenediamine 1.5 parts,
[0076] 0.4 parts of water,
[0077] 0.35 parts of silicone oil,
[0078] Triethylenediamine / dibutyltin dilaurate 0.23 / 0.07 parts;
[0079] Component B includes the following raw materials:
[0080] Nano wollastonite 6 parts,
[0081] Bio-based polyether polyol C (water content less than 0.1%) 17.95 parts,
[0082] 30 parts of liquefied diphenylmethane diisocyanate.
[0083] Its concrete preparation method is with embodiment 2.
[0084] The materials described are tested according to the following standards:
[0085] ① Determination of isocyanate group content in HG / T 2409-1992 polyurethane prepolymer;
[0086] ②GB / T 10802-1989 flexible polyurethane foam;
[0087] ③GB / T 10800-1989 Rigid polyurethane foam for building heat insulation;
[0088] The technical performance indica...
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