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A composite oil-absorbing material

An oil-absorbing material and mass ratio technology, applied in separation methods, chemical instruments and methods, liquid separation, etc., can solve the problems of poor oil-absorbing effect and low holding rate, achieve good oil-absorbing effect, reduce physical cross-linking degree, The effect of convenient recycling

Active Publication Date: 2021-11-30
台州市路桥万驰机械有限公司
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a composite oil-absorbing material for the low holding rate and poor oil-absorbing effect of commonly used oil-absorbing materials

Method used

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  • A composite oil-absorbing material

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preparation example Construction

[0029] The preparation method of composite hydrophobic fiber airgel comprises the steps:

[0030] (1) After drying the cotton fiber in a vacuum oven at 60-80°C for 8-12 hours, add nano-Fe at a mass ratio of 3:0.1-0.3:15-25 3 o 4 , Reagent A, mixed with 500~800r / min magnetic force for 35~60min, transferred to a centrifuge and centrifuged at 3000~4000r / min for 10~15min, removed the centrifuged matter, and obtained cellulose liquid, put it in a water bath at 35~50℃, took Add 1-4% N,N-methylenebisacrylamide to the cellulose liquid, mix with 400-700r / min magnetic force for 30-55min, and let stand at room temperature for 4-6h to obtain a hydrogel, take water After the gel was washed with deionized water for 2 to 4 times, it was transferred to a freeze dryer at -40°C for 4 to 6 hours to obtain a cross-linked fiber hydrogel;

[0031] (2) Take the cross-linked fiber hydrogel in a closed desiccator, and place an open cup containing 1~3mL methyltrichlorosilane in the desiccator, and se...

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Abstract

The invention discloses a composite oil-absorbing material. It belongs to the field of oil-absorbing material preparation. The present invention uses cotton fiber as raw material, N, N-methylenebisacrylamide as cross-linking agent, and prepares cellulose aerogel with three-dimensional connected porous structure by freeze-drying technology. During the aggregation process of silanol and internal cellulose The chemical cross-linking and hydrogen bonding effect of surface hydroxyl group make the contact angle of this material and water significantly increase, which can show good oil absorption effect; the nano-Fe added in the present invention 3 o 4 The existence of the system can improve the stability of the system, anti-corrosion, and cooperate with TiO with photocatalytic activity 2 The hydrophobic and oil-absorbing effect of the system can be well improved, and the hydrophobic and lipophilic composite material system can be further constructed. The invention solves the problems of low holding rate and poor oil absorption effect of commonly used oil-absorbing materials at present.

Description

technical field [0001] The invention belongs to the field of preparation of oil-absorbing materials, in particular to a composite oil-absorbing material. Background technique [0002] With the increase in the amount of petroleum and petroleum products, the damage caused by marine oil spills has the characteristics of high degree of harm, wide spread, and difficulty in cleaning up. To solve these problems, it is urgent to develop efficient, durable and clean oil-absorbing materials. [0003] A good oil-absorbing material should have the characteristics of strong hydrophobicity, fast oil absorption, large oil absorption capacity, no sedimentation after oil absorption, recyclable reuse, and environmental friendliness. At present, the adsorption method is mostly used, and the adsorption method embodies the advantages of high efficiency and economy. The adsorbents used mainly fall into three categories: chemical synthesis, natural inorganic, and natural organic. Among them, che...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/022
CPCB01D17/0202
Inventor 胡次兵陈建春庞成荣
Owner 台州市路桥万驰机械有限公司
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