Method for preparing fibrous polymeric adsorption material

Patent metadata

Field	Value
Publication number	US-9427926-B2
Application number	US-201414307732-A
Country	US
Kind code	B2
Filing date	Jun 18, 2014
Priority date	Jul 3, 2013
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

A method of preparing a fibrous polymeric adsorption material includes preparing a linear polymer yarn from a linear polymer via melt-blow spinning, the linear polymer having a molecular weight of 15,000 to 20,000 g/mol; treating the linear polymer yarn with a crosslinking agent and a porogen agent; and heating the treated linear polymer yarn at 130 to 150° C. for 25 to 35 seconds to obtain the fibrous polymeric adsorption material. The fibrous polymeric adsorption material includes fibers with a diameter of 4 to 6 microns. The crosslinking agent is in an amount of 1 to 3 weight % of the linear polymer. The crosslinking agent is a diacrylate ester compound having Formula J1, J2 or J3. The porogen agent is in an amount of about 1 weight % of the fibrous polymeric adsorption material.

First claim

What is claimed is:

1. A method of preparing a fibrous polymeric adsorption material comprising:
preparing a linear polymer yarn from a linear polymer via melt-blow spinning, the linear polymer having a molecular weight of 15,000 to 20,000 g/mol;
treating the linear polymer yarn with a crosslinking agent and a porogen agent; and
heating the treated linear polymer yarn at 130 to 150° C. for 25 to 35 seconds to obtain the fibrous polymeric adsorption material,
wherein the fibrous polymeric adsorption material includes fibers with a diameter of 4 to 6 microns;
wherein the crosslinking agent is in an amount of 1 to 3 weight % of the linear polymer;
wherein the crosslinking agent is a diacrylate ester compound having Formula J1, J2 or J3:

and
wherein the porogen agent is in an amount of about 1 weight % of the linear polymer.

2. The method of claim 1 , wherein the linear polymer is a linear long chain ester of methacrylic acid, a methacrylic acid alkyl ester, a 9-(12-((4-vinylbenzyl)oxy)dodecyl) fused ring aromatic hydrocarbon, or a 12-(fused-ring-aromatic-hydrocarbon-9-yl)dodecyl esters, the long chain ester of methacrylic acid having a C 6 -C 18 straight alkyl chain; the methacrylic acid alkyl ester having a C 1 -C 6 straight-chain alkyl; and the fused ring aromatic hydrocarbon being anthracene.

3. The method of claim 1 , wherein a melting point of the linear polymer is about 150° C.

4. The method of claim 1 , wherein the porogen agent is modified paraffin.

5. The method of claim 4 , wherein the modified paraffin is prepared by a process comprising:
mixing solid paraffin with an aqueous dispersant solution, the aqueous dispersant solution having a concentration of 1-100 mg/mL;
stirring the mixture of the solid paraffin and the aqueous dispersant solution at 60-100° C.;
adding an acrylate monomer and benzoyl peroxide to the mixture of the solid paraffin and the aqueous dispersant solution to initiate a polymerization reaction;
running the polymerization reaction for 2.5 to 4 hours; and
placing the mixture into water to obtain the modified paraffin,
wherein the aqueous dispersant solution includes gelatin and hydroxyethyl cellulose; and
wherein the amount of benzoyl peroxide is 1-3 weight % of the acrylate monomer.

Assignees

• Univ Soochow

Inventors

• Lu Jianmei

Classifications

• B29L2031/731

  Filamentary material, i.e. comprised of a single element, e.g. filaments, strands, threads, fibres (cables B29L2031/707) · CPC title

• B29D99/0078 Primary

  Producing filamentary materials · CPC title

• D01F6/20

  from polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain · CPC title

• D01F6/36

  comprising unsaturated carboxylic acids or unsaturated organic esters as the major constituent · CPC title

• D01F6/42

  comprising cyclic compounds containing one carbon-to-carbon double bond in the side chain as major constituent · CPC title