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Oil absorbing fibre and perparing method thereof

A technology of oil-absorbing fiber and formula, which is applied in the fiber field, can solve the problems of no oil-absorbing fiber report, slow absorption rate, small absorption ratio, etc., and achieve excellent oil absorption characteristics, fast oil absorption speed, and large specific surface area of ​​oil absorption.

Inactive Publication Date: 2005-02-23
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a lot of progress has been made in the research and application of super oil-absorbing resin, there are problems such as slow absorption rate and small absorption rate, especially the particle shape of its material, which also limits its application.
[0006] At present, there are no reports about oil-absorbing fibers at home and abroad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Using n-butyl methacrylate as the monomer, benzoyl peroxide as the initiator, polyvinyl alcohol as the dispersant, distilled water as the reaction medium, under the protection of nitrogen, the content will be 0.5% (the mass percentage of the monomer, the same below ) The monomer solution of the initiator is added to the water with the dispersant, heated at 70~80℃ and stirred evenly, reacted for 8~10h to make a granular resin; the resin is dried and dissolved in dimethylacetamide to prepare the quality For a solution with a percentage concentration of 25%, add 10%, 20%, 25%, 30%, 35%, 40% of the latent crosslinking agent hydroxyethyl methacrylate and 0.5% of the monomer mass after uniformly dissolving. The initiator is stirred and reacted at 70°C for 2h, and then the spinning dope is obtained by defoaming; the spinning dope is made by dry-wet spinning process, and water is used as the coagulation bath to spin the nascent fiber; the nascent fiber is heated at 150°C After heat...

Embodiment 2

[0039] According to the method of Example 1, when the content of hydroxyethyl methacrylate is 35%, the nascent fiber is prepared and then thermally crosslinked at 150°C for 10min, 20min, 30min, 40min, 50min and 60min to make oil-absorbent fiber. The saturated absorption rates of toluene are 14.6, 15.6, 10.75, 10.4, 9.3 and 9.2 (g·g -1 ).

Embodiment 3

[0041] According to the method of Example 1, when the content of hydroxyethyl methacrylate is 35%, the nascent fiber is prepared, and then thermally cross-linked at 120°C, 135°C, 150°C and 165°C for 20 minutes to make oil-absorbent fiber. The saturated absorption rates of p-toluene are 9.4, 12.0, 12.4 and 4.8 (g·g -1 ).

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Abstract

The invention relates to a kind of oil-absorbed fiber and its producing method. Its prescription is: 100% polymer monomer, 10-40% of potential gemel agent, 0.1-0.5% solicitation, 0.5-1% dispersant. Moreover the water-like body is 3-4 times more in volume than polymer monomer. The polymer monomer is methacrylate monomer involving butyl methacrylate, the potential gemel agent is 2-hydroxyethyl methacrylate, the solicitation is benzoyl peroxide, and dispersant is poly-vinyl-alcohol. The process is (1) use water-suspending polymerization to produce butyl methacrylate under 70-80 deg.C for blending and polymerizing for 8-10 hours. (2) dissolve the polymer into proper solvent to deploy 20-25% liquid and then insert potential gemal agent and solicitation to polymerize for 3-5 hours under 75-80 deg.C to obtain the original liquid. (3) take off dunking. (4) spin using one of wet or dry method or both, (5) treat with fibre for 10-60 minutes under 120-165 deg.C to obtain the production. The solvent discussed above is one of DMF, DMAC or dimethoxysulfoxide.

Description

Technical field [0001] The present invention relates to a fiber technology, specifically an oil-absorbing fiber and a manufacturing method thereof. The main international patent classification number is proposed to be Int.cl 7 .B01D 69 / 00. Background technique [0002] In recent years, with the development of industry, environmental pollution problems such as rivers and oceans caused by oily sewage, waste liquid, and industrial accidents such as oil tanker leakage have become increasingly serious. Traditional oil-absorbing materials such as clay, kapok, and paper pulp can no longer meet the requirements of waste oil recycling and environmental protection. The requirements of governance, research and development of new high-performance oil-absorbing materials are imperative. A new type of functional polymer material, high oil-absorbing resin, is one of them. It has a three-dimensional network structure, has strong oil absorption and oil retention capabilities, and can replace trad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/06D01F1/00D01F6/16
Inventor 肖长发封严安树林贾广霞张宇峰
Owner TIANJIN POLYTECHNIC UNIV
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