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PET sheath core fiber containing metal modified cross ester compound and preparation method thereof

A metal modification, skin-core fiber technology, applied in fiber processing, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of high solubility, difficult polymer molding and processing, and difficult processing and molding process.

Active Publication Date: 2019-03-08
SHANGHAI DEFULUN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solubility of the existing functional cruciform esters in common spinning solvents or polymers is too high, resulting in low viscosity of the mixture after blending with polyester and other polymers, which brings difficulties to the molding process of polymers
In addition, its melting point is not high, generally at 60-70°C, which puts forward certain requirements for its storage and transportation, and increases the cost of use. There is a problem that the processing and molding process is difficult

Method used

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  • PET sheath core fiber containing metal modified cross ester compound and preparation method thereof
  • PET sheath core fiber containing metal modified cross ester compound and preparation method thereof
  • PET sheath core fiber containing metal modified cross ester compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A preparation method of PET sheath-core fiber containing metal-modified cross-type esterified compound, the steps are as follows:

[0061] (1) prepare cross-type esterified product;

[0062] (a) Dibasic acid A 2 Mix with pentaerythritol at a molar ratio of 4:1, carry out melt esterification reaction under nitrogen protection and mechanical stirring at a stirring speed of 300rpm, collect the product, obtain DAPER through dissolution, filtration and drying, wherein the temperature of the melt esterification reaction is 200°C, the reaction time is 3h, A 2 The structural formula is:

[0063]

[0064] (b) Dibasic carboxylic acid B 2 Mix with ethylene glycol at a molar ratio of 1:1, add 4-methylbenzenesulfonic acid, and carry out melt condensation reaction under nitrogen protection and mechanical stirring at a stirring speed of 500rpm to obtain DADA, wherein B 2 The molar ratio with 4-methylbenzenesulfonic acid is 1:0.01, the temperature of melt condensation reaction i...

Embodiment 2

[0078] A preparation method of PET sheath-core fiber containing metal-modified cross-type esterified compound, the steps are as follows:

[0079] (1) prepare cross-type esterified product;

[0080] (a) Dibasic acid A 2 Mix with pentaerythritol at a molar ratio of 4:1, carry out melt esterification under argon protection and mechanical stirring at a stirring speed of 350rpm, collect the product, dissolve, filter and dry to obtain DAPER, wherein the melt esterification The temperature is 185°C, the reaction time is 1h, A 2 The structural formula is:

[0081]

[0082] (b) Dibasic carboxylic acid B 2 Mix with propylene glycol at a molar ratio of 1:1, add 4-methylbenzenesulfonic acid, and carry out melt condensation reaction under nitrogen protection and mechanical stirring at a stirring speed of 300rpm to obtain DADA, wherein B 2 The molar ratio with 4-methylbenzenesulfonic acid is 1:0.01, the temperature of the melt condensation reaction is 185°C, and the reaction time is ...

Embodiment 3

[0096] A preparation method of PET sheath-core fiber containing metal-modified cross-type esterified compound, the steps are as follows:

[0097] (1) prepare cross-type esterified product;

[0098] (a) Dibasic acid A 2 Mix with pentaerythritol at a molar ratio of 4:1, carry out melt esterification under the condition of helium protection and mechanical stirring at a stirring speed of 400rpm, collect the product, obtain DAPER through dissolution, filtration and drying, wherein the melt esterification The temperature is 180°C, the reaction time is 2h, A 2 The structural formula is:

[0099]

[0100] (b) Dibasic carboxylic acid B 2 Mix with 1,4-butanediol at a molar ratio of 1:1, add 4-methylbenzenesulfonic acid, and carry out melt condensation reaction under argon protection and mechanical stirring at a stirring speed of 500rpm to obtain DADA, wherein B 2The molar ratio with 4-methylbenzenesulfonic acid is 1:0.01, the temperature of melt condensation reaction is 180°C, a...

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Abstract

The invention relates to a PET sheath core fiber containing a metal modified cross ester compound and a preparation method thereof. The PET sheath core fiber containing the metal modified cross estercompound is prepared by respectively taking a mixture of a PET chip and flame retardant antibacterial masterbatch and a regenerated PET chip as a sheath layer material source and a core layer materialsource and adopting a melt sheath core composite spinning method, wherein the flame retardant antibacterial masterbatch comprises a flame retardant antibacterial modifier which is an insoluble and infusible metal modified cross ester compound, concretely is a network polymer formed by crosslinking an insoluble and infusible cross ester compound with metal ions; the insoluble and infusible metal modified cross ester compound is insoluble in an organic solvent I at the temperature of 80 DEG C or below and is infusible in a range of room temperature to T, and T is greater than or equal to 380 DEG C; a structural formula of the cross ester compound is shown as follows (the structural formula is shown in the description); in the formula, a chemical chain represents a chain segment between quaternary carbon C of a cross ester compound molecular center and terminal carboxyl, and contains double bonds with oxygen atoms. The preparation method disclosed by the invention is simple and feasible;the prepared sheath core fiber has excellent flame retardant and antibacterial properties.

Description

technical field [0001] The invention belongs to the technical field of functional chemical fibers, and relates to a PET sheath-core fiber containing a metal-modified cross-shaped ester compound and a preparation method thereof by slice spinning. Background technique [0002] Functional fibers, differential fibers and high-performance fibers are the main development directions of technological innovation in the traditional textile industry, which have contributed to the improvement of human living standards. Among them, functional fibers have the widest range of applications. [0003] Functional fiber refers to a new type of fiber that has some special function in addition to the physical and mechanical properties of ordinary fibers. In firefighting and factory and mine operations, high temperature poses a huge threat to firefighters and staff, and can easily cause fatal accidents. In daily life, fire accidents caused by burning textiles will also bring casualties and propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/07D01F1/10D01D5/34
CPCD01D5/34D01F1/07D01F1/103D01F8/14
Inventor 陆育明冯忠耀李东华王佳欢杨卫忠朱亚宏李忠周永华
Owner SHANGHAI DEFULUN CHEM FIBER
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