粗甘油基复合聚氨酯吸油泡沫的制备

doi:10.3969/j.issn.0253-2417.2022.06.010

Abstract

Abstract:

Crude glycerol based polyol was synthesized by one-pot method using crude glycerol as the main raw material. The polyol was combined with polyether polyol 330N and 3628 was used for the preparation of crude glycerol based polyurethane composite foam for oil absorbing. The effects of the amount of crude glycerol based polyol, isocyanate index and foaming agent on the properties of foam materials were investigated. Moreover, the formulation of composite foam for oil absorbing was optimized, and the foam was further characterized by FT-IR and SEM. The results showed that the functional groups and skeleton structure of the crude glycerol based polyurethane composite foam synthesized under the conditions of 25% crude glycerol based polyol, 55% polyether polyol 330N, 20% polyether polyol 3628, 4% water(relative to the total polyol mass) and isocyanate index 0.90, were similar to those of the polyurethane foam synthesized commercial polyols. Meanwhile, the oil absorption rate of the composite foam to different organic compounds was ethanol of 15.1 g/g, methanol of 14.7 g/g, chloroform of 40.9 g/g, dichloromethane of 43.7 g/g, acetone of 18.0 g/g, toluene of 19.2 g/g, soybean oil of 9.0 g/g, diesel of 11.2 g/g, kerosene of 12.0 g/g. Compared with the polyurethane foam without crude glycerol polyols, the oil absorption rate of the composite foam to methanol decreased by 3.29%, while the oil absorption rates of other organic matters increased by 13.53%-46.34%.

Key words: crude glycerol, polyurethane, foam, oil absorbing material

CLC Number:

TQ35
TQ328.3

Mengyu LI, Dongxiang WANG, Wei CHEN, Guizhuan XU, Chun CHANG, Chaojun DU. Preparation of Crude Glycerol Based Polyurethane Composite Foam for Oil Absorbing[J]. Chemistry and Industry of Forest Products, 2022, 42(6): 69-76.

Figures/Tables 11

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Table 1

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References 31

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溶剂 solvent	吸油倍率oil absorption rate/(g·g^-1)		提高率/% increase ratio
溶剂 solvent	PU-0	PU-25	提高率/% increase ratio
乙醇ethanol	13.3	15.1	13.53
甲醇methanol	15.2	14.7	-3.29
氯仿chloroform	35.2	40.9	16.19
二氯甲烷dichlormethane	33.7	43.7	29.67
丙酮acetone	14.9	18.0	20.81
甲苯toluene	14.7	19.2	30.61
大豆油soybean oil	7.7	9.0	16.88
柴油diesel	8.6	11.2	30.23
煤油kerosene	8.2	12.0	46.34

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Preparation of Crude Glycerol Based Polyurethane Composite Foam for Oil Absorbing

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