High oil absorption polyurethane foam and preparation method thereof

Abstract

The invention relates to a high oil absorption polyurethane foam which comprises the following components in parts by weight: 20 to 40 parts of isocyanate, 35 to 60 parts of polyol, 0.5 to 3 parts of catalyst, 0.5 to 3 parts of foam stabilizer, 5 to 10 parts of foaming agent, 2 to 10 parts of opening agent,5 to 20 parts of flame retardant, 5 to 15 parts of silicon rubber spherical micro powder and 0.5 to 2 parts of coupling agent. The preparation method comprises the following technology steps of weighing, prepolymerization, dispersing, polymerization foaming reaction, curing and peeling at room temperature and cutting. The high oil absorption polyurethane foam can be used for the absorption and recycle of various oil products (crude oil, engine oil, diesel fuel, gasoline, kerosene and the like) on water surfaces, ground or surfaces of other objects, and various oil soluble organic compounds (benzene, methylbenzene, dimethylbenzene, chloroform, nitrobenzene, chlorobenzene and the like). The invention has the advantages of simple technology and low cost, obviously improves the dispersing effect of the silicon rubber spherical micro powder in a polymerization system by using ultrasonic technique, and greatly increase the oil absorption quantity and oil absorption rate of the polyurethane foam by adding the silicon rubber spherical micro powder.

Description

technical field [0001] The invention relates to a polyurethane foam material and a preparation method thereof, belonging to the field of polymer materials. Specifically, the present invention relates to a polyurethane foam with high oil absorption performance and a preparation method thereof. Background technique [0002] Polyurethane foam is a kind of polymer foam material produced by the polyaddition reaction of isocyanate monomers and compounds containing active hydrogen (such as: -OH, -COOH, -NH-, etc.) in the presence of a blowing agent. Its main feature is porosity and relatively low density. Because of its excellent physical and mechanical properties, acoustic properties, electrical properties and chemical resistance, it is widely used in furniture making, household appliances, transportation, construction, packaging materials and military aerospace. [0003] Although polyurethane foam has been developed rapidly since its inception, there are still few researches an...

AI Technical Summary

Problems solved by technology

In China, some people have reviewed the traditionally used polyurethane foam as a type of oil-absorbing resin (Yang Junhua, Oil-absorbing resin, synthetic resin and plastics, 1991, 8 (4)); Fu Rongxing has reviewed the application of polyurethane microporous materials in petrochemical Application in industry (Fu Xingrong, Application of Polyurethane Microporous Materials in Petrochemical Industry, Petrochemical Industry, 1996, 25, 134); Zhu Lumin and others mentioned the role of polyurethane foam in the treatment of three wastes in their published works Application (Zhu Lumin, Liu Yijun, "Polyurethane Foam", the third edition in 2005, p.839); Chen Jiandong etc. discussed the oil absorption mechanism of polyurethane foam, the influence of external conditions on the oil absorption performance of polyurethane foam and the regeneration method (Chen Jiandong, polyurethane foam A Preliminary Study on the Oil Absorption Mechanism of Foam, Railway Occupational Safety, Hygiene and Environmental Protection, 1990, 4(49-50); Chen Jiandong, The Influence of Water Temperature and Influent Oil Concentration on the Effect of Polyurethane Foam Filtration and Oil Absorption, Railway Occupational Safety, Hygiene and Environmental Protection, 1990, 4(51 -53); Chen Jiandong et al., Effect of flow rate change on polyurethane foam filtration and oil absorption effect, Railway Labor Safety, Sanitation and Environmental Protection, 1990, 4(53-54); Chen Jiandong et al., Research on regeneration method of polyurethane foam after oil absorption, Railway Labor Safety, Hygiene and Environmental Protection, 1991, 1(49-53)), but none of the above-mentioned documents involved the systematic research on the preparation and application technology of polyurethane foam for adsorption and recovery of various leaked oils or other oil-soluble organic compounds