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Oil-absorbing resin and preparation method thereof

A technology of oil-absorbing resin and chlorinated polypropylene, applied in the field of oil-absorbing resin and its preparation, can solve the problems of lack of high oil-absorbing resin, poor polymerization ability and high price, achieve stability, improve oil-absorbing performance, and overcome high price Effect

Inactive Publication Date: 2014-04-02
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high price of α-long-chain olefin monomers and long-chain alkyl styrene monomers, and the poor polymerization ability of these monomers, high oil-absorbing resins with excellent oil-absorbing properties are often not available

Method used

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  • Oil-absorbing resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The oil-absorbing resin of the present embodiment is formed by substitution reaction of the following main raw materials under alkaline conditions: 100 grams of chlorinated polypropylene with 50% chlorine, 450 grams of p-n-octylphenol and 10 grams of ethylene glycol. The specific preparation method is as follows:

[0019] Dissolve 100 grams of chlorinated polypropylene with 50% chlorine in 200ml of monochlorobenzene to form a solution, and react 450 grams of p-n-octylphenol with sodium hydroxide in monochlorobenzene to produce sodium phenate. Gram ethylene glycol is reacted with sodium amide in monochlorobenzene to produce sodium ethylene glycol. Under nitrogen protection, the prepared sodium phenate and sodium glycol and chlorinated polypropylene solution are stirred and reacted at 80°C for 12 hours After that, ethanol was added to precipitate, the precipitate was washed three times with 70°C hot water, and dried to obtain oil-absorbing resin.

Embodiment 2

[0021] The oil-absorbent resin of this embodiment is prepared by substitution reaction of the following main raw materials under alkaline conditions: 100 grams of chlorinated polypropylene with 60% chlorine, 500 grams of p-dodecyl phenol and 10 grams of ethylene dichloride alcohol. The specific preparation method is as follows:

[0022] Dissolve 100 g of chlorinated polypropylene with 50% chlorine in 200 ml of monochlorobenzene to form a solution, and react 500 g of p-n-dodecylphenol with sodium hydroxide in monochlorobenzene to produce sodium phenate. 10 grams of ethylene glycol and sodium hydride are reacted in monochlorobenzene to produce sodium ethylene glycol, and the prepared sodium phenate and sodium glycol and chlorinated polypropylene solution are stirred and reacted at 90°C under the protection of nitrogen. 11 After an hour, add ethanol to precipitate, wash the precipitate with 80°C hot water three times, and dry to obtain oil-absorbing resin.

Embodiment 3

[0024] The oil-absorbent resin of this embodiment is made by substitution reaction of the following main raw materials under alkaline conditions: 100 grams of brominated polypropylene with 60% bromine, 120 grams of p-hexadecylphenol and 15 grams of 1, 6-Hexanediol. The specific preparation method is as follows:

[0025] Dissolve 100 g of brominated polypropylene with 60% bromine in 200 ml of cyclohexane to form a solution, and react 120 g of p-hexadecylphenol with sodium hydroxide in cyclohexane to produce sodium phenate. Gram 1,6-hexanediol and sodium metal are reacted in cyclohexane to produce sodium hexylene glycol. Under the protection of nitrogen, the prepared sodium phenate and sodium glycol and chlorinated polypropylene solution are stirred and reacted at 100°C. After 10 hours, ethanol was added for precipitation, the precipitate was washed three times with hot water at 90°C, and dried to obtain an oil-absorbing resin.

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Abstract

The invention discloses an oil-absorbing resin, which is prepared from the following main raw materials in parts by weight in basic condition by substitution reaction: 120-150 parts of p-C8-18 straight chain alkyl substituted phenol, 10-25 parts of C2-6 straight chain diol and 100 parts of chlorinated polypropylene or brominated polypropylene. According to the oil-absorbing resin, polypropylene polymeric chains are used as a substrate, long side aliphatic chains are connected to the polypropylene polymeric chains by benzene oxygen bonds through substitution reaction, and the long side aliphatic chains have good compatibility with grease, so that oil absorbency of conventional alpha-olefin resin can be achieved; and in addition, a cross-linking agent namely C2-6 straight chain diol is added to the resin material, due to the cross-linking agent, the polypropylene polymeric chains can be cross-linked by ether bonds, the polypropylene polymeric chains form a three-dimensional network in space so as to form certain oil storage space, and the rigidity of the polypropylene polymeric chains can be improved after cross-linking, so that the stability of the oil storage space is ensured, therefore, the oil absorbency of the resin material is further improved due to the added cross-linking agent.

Description

Technical field [0001] The invention relates to an oil-absorbing resin and a preparation method thereof. Background technique [0002] High oil-absorbing resin is a body polymer resin with a low three-dimensional network chemical cross-linked structure. It has the characteristics of many kinds of oil absorption, large oil absorption, convenient recycling, and strong oil retention. Treatment and oil leakage, especially suitable for absorbing oil contaminants leaked to the sea due to tanker accidents. There are two main types of high oil-absorbing resins, one is alkyl acrylate resins, and the other is α-olefin resins. The former has ester polar groups in its molecular structure, and its oil absorption capacity for non-polar oils is not too high. It is obtained by polymerization of alkyl ester monomers containing long carbon chain acrylic acid with carbon number ≥8; It is a non-polar resin, which has a higher oil absorption rate for non-polar oil crystals than alkyl acrylate resin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/28C08K5/053C08K5/13C08J3/24
Inventor 张玉清卢敏李梅姚大虎赫玉欣刘虎
Owner HENAN UNIV OF SCI & TECH