Oil absorption material and preparation method and use thereof

An oil-absorbing material and foamed plastic technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of high water absorption, slow adsorption, too large, etc., and achieve the effect of high oil absorption and low water absorption

Active Publication Date: 2014-10-29
金碳环境科技(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Too large, the adsorption is too slow, too small, the oil retention capacity is too poor
[0005] In the prior art, soft foam materials are mostly used, and highly lipophilic polymerized monomers are used to improve the water absorption of the foam materials. Materials with capillarity have good hydrophilic effects, so the water absorption is still very high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The preparation method of the oil-absorbing material comprises making the foamed plastic into powder to obtain the oil-absorbing material.

[0036] There are many methods for making slabstock into powder, which are not limited in this application. Methods such as cutting and grinding all can achieve the purpose of the present invention.

Embodiment 1

[0039] Taking the Chinese patent CN200910060231.0 as an example, this patent involves high oil-absorbing polyurethane foam material, and its formula components are as follows (all parts by weight, the same below):

[0040] MDI 30 servings

[0041] Polyol 50 parts

[0042] Catalyst 1.5 parts

[0043] Foam stabilizer (L600) 1.8 parts

[0044] Foaming agent (deionized water) 5 parts

[0045] Cell opener (C-18) 3 parts

[0046] Flame retardant (expanded graphite) 15 parts

[0047] Silicone rubber spherical powder 5 parts

[0048] 1 part coupling agent

[0049] The oil absorption rate to gasoline of the obtained polyurethane foam block was 25 g / g, and the water absorption rate was 1.2 g / g.

[0050] The inventor of the present application adopts the polyurethane foam prepared from the above components, cuts and pulverizes it to obtain a powder with a particle size of about 2-500 microns, and the oil absorption rate of the obtained polyurethane foam block to gasoline is 23g / g...

Embodiment 2

[0052] Propylene glycol is 70 parts of polyoxyethylene oxide propylene ether polyols of initiator

[0053] Glycerin is 30 parts of polyoxyethylene oxide propylene ether polyols of initiator

[0054] 1 part diethanolamine

[0055] 2.4 parts of water

[0056] Tetramethylhexamethylenediamine 0.3 parts

[0057] Triethylenediamine 0.1 part

[0058] Poly MDI 49.6 parts

[0059] The mold temperature is 40 degrees Celsius. Cure time 4 minutes, gel time 96 seconds, rise time 163 seconds.

[0060] The foam density of the obtained semi-rigid foamed plastic was 159 kg / m3, the final Shore C hardness was 37, and the average cell diameter was 400 microns.

[0061] Among them, the poly MDI is MR-200 from Japan NPU Company, the polyoxyethylene oxide propylene ether polyol with propylene glycol as the initiator has a hydroxyl value of 28, a molecular weight of 4000, and an ethylene oxide content of 20%. Polyoxyethylene oxide propylene ether polyol with glycerin as the initiator has a hydro...

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Abstract

The invention relates to an oil absorption material and belongs to the field of preparation of organic materials. The invention further relates to a preparation method and use of the oil absorption material. The oil absorption material is powder made from foamed plastic. The powder made from foamed material provided by the invention has high oil absorption and low water absorption. The foamed material is cut and smashed to obtain powder with the grain size being about 2-1000 microns. The oil absorption of the obtained polyurethane foam block to gasoline is reduced by no greater than 10% but the water absorption is greatly reduced to below 20% of the original water absorption.

Description

technical field [0001] The invention relates to an oil-absorbing material and belongs to the field of organic material preparation. The invention also relates to a preparation method and application of the oil-absorbing material. Background technique [0002] The interior of the foam material is a grid-like or film-like porous structure, so it not only has a large specific surface area, but also contains rich capillary channels inside. Therefore, when it is in contact with the oil-water mixture, it will not only produce adsorption on the surface of the material but also absorb oil and water along with the filling space, mainly by the adsorption and filling of mesopore capillary condensation and macroporous multi-molecular layer. Therefore, both water and oil are easier to accumulate in the micropores of this type of foam to form a certain thickness. In the oil-water mixture, it also absorbs water at the same time. Difficult to handle after separation. [0003] According t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L75/04C08L27/06C08L23/06C08L61/06C08L69/00C08L71/12C08L81/06C08K3/00C09K3/32
Inventor 李林瑛
Owner 金碳环境科技(天津)有限公司
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