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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 slow absorption rate, no report of oil-absorbing fiber, and small absorption rate, etc., and achieve the effect of fast oil-absorbing speed, excellent oil-absorbing characteristics, and large specific surface area of ​​oil-absorbing

Inactive Publication Date: 2006-05-10
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] With 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, it will contain 0.5% (accounting for the mass percentage of the monomer, the same below) ) The monomer solution of the initiator is added to the water dissolved in the dispersant, heated and stirred at 70-80°C to make it uniform, and reacted for 8-10 hours to make a granular resin; the resin is dried and dissolved in dimethylacetamide to prepare the mass For a solution with a percentage concentration of 25%, after dissolving evenly, add 10%, 20%, 25%, 30%, 35%, and 40% of the latent crosslinking agent hydroxyethyl methacrylate and 0.5% of the monomer mass The initiator was stirred and reacted at 70°C for 2 hours, and the spinning stock solution was obtained by defoaming; the spinning stock solution was spun into primary fibers by using dry-wet spinning process with water as a coagulatio...

Embodiment 2

[0039] According to the method of Example 1, when the content of hydroxyethyl methacrylate is 35%, after the as-spun fibers are prepared, they are respectively heat-crosslinked at 150°C for 10min, 20min, 30min, 40min, 50min and 60min to make oil-absorbing fibers. Its saturation absorption rate of toluene is 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%, after the as-spun fibers are prepared, they are thermally cross-linked at 120°C, 135°C, 150°C and 165°C for 20 minutes to make oil-absorbing fibers. The saturated absorption rates of toluene are 9.4, 12.0, 12.4 and 4.8 (g·g -1 ).

[0042] Using n-butyl methacrylate and lauryl methacrylate as monomers, synthesize n-butyl methacrylate / methacrylic acid with mass ratios of 90 / 10, 85 / 15, 80 / 20 and 75 / 25, respectively The lauryl ester copolymer was then prepared into oil-absorbing fibers with different monomer ratios according to the method in Example 1, wherein the latent cross-linking agent hydroxyethyl methacrylate content was 35%, and the cross-linking process was 150°C for 20 minutes.

[0043] The series of finished oil-absorbing fibers were inspected, and the saturated absorption rates of chloroform were measured to be 35, 27.44, 25.89 and 23.57 (g·g -1 ); the saturated absorpt...

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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 invention relates to a fiber technology, specifically an oil-absorbing fiber and its manufacturing method. The international patent main classification number is intended to be Int.cl 7 .B01D 69 / 00. Background technique [0002] In recent years, with the development of industry, environmental pollution problems such as oily sewage, waste liquid and industrial accidents such as oil tanker leakage caused by rivers and oceans have become increasingly serious. Traditional oil-absorbing materials such as clay, kapok, pulp, etc. can no longer meet the needs of waste oil recovery and environmental protection. In order to meet the requirements of governance, it is imperative to research and develop new high-performance oil-absorbing materials. New functional polymer material super 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 traditional oil abso...

Claims

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Application Information

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