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Preparation method for fluorescent spandex utilizing spandex waste fiber as raw material

A technology of spandex and fluorescence, which is applied in the manufacture of rayon, single-component synthetic polymer rayon, and fiber chemical characteristics, can solve problems such as agglomeration, increase the degree of bonding, strong fluorescent activity, and increase the degree of graft polymerization Effect

Active Publication Date: 2016-05-04
JIANGSU QIAOXIN FIBER
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In order to achieve the above-mentioned purpose, some people use inorganic nano-materials to modify spandex materials. Through intercalation technology, the layered inorganic nano-materials can be nano-dispersed in the polymer matrix, which can solve the above problems to a certain extent. The disadvantage is: the agglomeration of inorganic nanomaterials due to van der Waals force between nanoparticles

Method used

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  • Preparation method for fluorescent spandex utilizing spandex waste fiber as raw material

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Experimental program
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Effect test

Embodiment 1

[0028] (1) Preparation of intermediate monomers

[0029] Add 2 mol of 6-hydroxy-2-naphthoic acid and 2.4 mol of catalyst triethylamine into 80 ml of dichloromethane solvent, stir evenly in an ice bath, then add 2.8 mol of acryloyl chloride dropwise to the solvent for 2 hours Completed, after 15 hours of reaction in ice bath, wash with dilute hydrochloric acid with a solute mass fraction of 20%, then deionized water, dry over anhydrous magnesium sulfate, and spin evaporate to obtain the reaction product, which is the naphthalene containing double bond Formic acid monomer, the intermediate monomer required by the present invention,

[0030] The approximate reaction equation of above-mentioned steps (1) is

[0031]

[0032] (2) Preparation of photoinitiator-loaded spandex

[0033] A. In the prepolymerization tank, first add DMAC and PTMG (polytetramethylene ether glycol, molecular weight 1500), and then add 4,4-MDI (4,4- Diphenylmethane diisocyanate), warming up to 50°C, pr...

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Abstract

The invention belongs to the filed of spandex material preparation and in particular relates to a fluorescence modification process for a spandex material. The process comprises the following steps of firstly performing graft polymerization of an intermediate monomer used for complexing rare earth ions on the surface of spandex by virtue of an ultraviolet surface grafting method; and then directly complexing rare earth ions with fluorescence performance (and a coligand) on the spandex subjected to grafting modification. In the modified spandex obtained by the preparation method, a small molecule ligand and a spandex matrix are firmly and stably combined, so that the combination degree of rare earth and the spandex matrix is effectively enhanced, the fluorescence property is effectively improved, and the fluorescent spandex is quite convenient to recycle.

Description

technical field [0001] The invention belongs to the field of spandex material preparation, in particular to a fluorescent modification process for spandex material. Background technique [0002] Spandex is the abbreviation of polyurethane elastic fiber, which has good elastic properties and breaking strength, so it is often used to make parachute silk, rope, filter cloth, etc., and is widely used in the field of textiles. With the continuous improvement of consumers' requirements for product comfort, the properties of spandex products such as resilience, sweat resistance, and seawater resistance are far from meeting the requirements. It is the general trend to develop spandex products with more functions. [0003] Fluorescent spandex products can make textiles have fluorescent effects and meet the needs of use in certain fields. In order to achieve the above-mentioned purpose, some people use inorganic nano-materials to modify spandex materials. Through intercalation techno...

Claims

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Application Information

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IPC IPC(8): D06M14/30D06M11/65D01F6/94D01F1/10C08G18/76C08G18/66C08G18/48C08G18/32C08G18/10D06M101/38
CPCC08G18/10C08G18/4854C08G18/6685C08G18/7671D01F1/10D01F6/94D06M11/65D06M14/30D06M2101/38C08G18/3228
Inventor 潘瑞彬赵新伟
Owner JIANGSU QIAOXIN FIBER
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