Preparation method of rare earth modified high-intensity non-woven fabrics

A rare earth modified, high-strength technology, used in non-woven fabrics, rayon manufacturing, textiles and papermaking, etc., can solve the problem that PBT cannot meet the requirements of use, and achieve the effect of strong mechanical properties, high efficiency, and improved mechanical properties.

Inactive Publication Date: 2018-12-14
HEFEI SHENGDA GARMENT ACCESSORIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, some bonded nets require non-woven materials with better mechanical properties, and the PBT currently produced cannot meet the requirements for use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method of a rare earth modified high-strength nonwoven fabric, comprising the following steps:

[0017] (1) In parts by weight, add 23 parts of lutetium chloride and 16 parts of thulium chloride to 130 parts of water, then continue to add 55 parts of sodium naphthenate to it, mix and stir evenly, and raise the temperature of the mixture to 130 ℃, after heat preservation treatment for 2 hours, the rare earth naphthenate was prepared;

[0018] (2) In parts by weight, after uniformly mixing 55 parts of rare earth naphthenate, 1 part of nano-lutetium oxide, 0.6 part of nano-thulium oxide, 2 parts of sodium methacrylate, and 0.3 parts of sodium ethylenediaminopropanesulfonate , to obtain a resin modifier;

[0019] (3) In parts by weight, mix 88 parts of polybutylene terephthalate slices, 5 parts of resin modifier, and 1 part of flow modifier evenly, then add them to the slicer and granulator, and blend to make After granulation, the PBT masterbatch is obtaine...

Embodiment 2

[0024] A preparation method of a rare earth modified high-strength nonwoven fabric, comprising the following steps:

[0025] (1) In parts by weight, add 25 parts of lutetium chloride and 18 parts of thulium chloride to 140 parts of water, then continue to add 58 parts of sodium naphthenate to it, mix and stir evenly, and raise the temperature of the mixture to 135 ℃, after heat preservation treatment for 2.5 hours, the rare earth naphthenate was prepared;

[0026] (2) In parts by weight, after uniformly mixing 58 parts of rare earth naphthenate, 2 parts of nano-lutetium oxide, 0.8 part of nano-thulium oxide, 3 parts of sodium methacrylate, and 0.4 parts of sodium ethylenediaminopropanesulfonate , to obtain a resin modifier;

[0027] (3) In parts by weight, mix 90 parts of polybutylene terephthalate chips, 7 parts of resin modifier, and 2 parts of flow modifier evenly, then add them to the slicer and granulator, and blend to make After granulation, the PBT masterbatch is obta...

Embodiment 3

[0032] A preparation method of a rare earth modified high-strength nonwoven fabric, comprising the following steps:

[0033] (1) In parts by weight, add 26 parts of lutetium chloride and 19 parts of thulium chloride to 150 parts of water, then continue to add 60 parts of sodium naphthenate to it, mix and stir evenly, and raise the temperature of the mixture to 140 ℃, after heat preservation treatment for 3 hours, the rare earth naphthenate was prepared;

[0034] (2) In parts by weight, after mixing 60 parts of rare earth naphthenate, 3 parts of nano-lutetium oxide, 0.9 part of nano-thulium oxide, 4 parts of sodium methacrylate, and 0.5 parts of sodium ethylenediaminopropanesulfonate , to obtain a resin modifier;

[0035] (3) In parts by weight, after mixing 92 parts of polybutylene terephthalate slices, 9 parts of resin modifiers, and 3 parts of flow modifiers, they were added to a slicer granulator, and blended to produce After granulation, PBT masterbatches are obtained, a...

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Abstract

The invention discloses a preparation method of rare earth modified high-intensity non-woven fabrics. The preparation method comprises the following operating steps of (1) adding lutecium chloride andthulium chloride to water, then continuing adding sodium napthionate to the water, performing uniform mixing and stirring so as to obtain a mixture, raising the temperature of the mixture, and performing heat preservation so as to obtain rare earth naphthenates; (2) uniformly mixing the rare earth naphthenates with nanometer lutecium oxide, nanometer thulium oxide, sodium methallyl sulfonate andethylenediamine base propanesulfonate so as to obtain resin modifying agents; and (3) uniformly mixing polybutylene terephthalate slices with the resin modifying agents and a flow modifier to obtain anew mixture, adding the new mixture to a slice pelleting machine, performing co-mixing and granulation to obtain PBT master batches, adding the PBT master batches and the polybutylene terephthalate slices to dissolving and spraying equipment in the mass ratio of the PBT master batches to the polybutylene terephthalate slices being 1 to (15-20), and performing melt spinning and knitting so as to obtain the rare earth modified high-intensity non-woven fabrics. The non-woven fabrics prepared by the preparation method disclosed by the invention have good mechanical properties, and can be used under various high-intensity conditions.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabric preparation, and in particular relates to a preparation method of rare earth modified high-strength non-woven fabric. Background technique [0002] Non-woven filter materials are basically composed of various textile fibers in a three-dimensional network structure. Polypropylene (PP) is the most commonly used raw material in melt blown production, with a melting point of about 164-170°C, and has the characteristics of low density, high crystallinity, and strong acid and alkali resistance. In addition, PP does not need to be dried before processing, the melt has good fluidity during processing, and the production process is short, so it has a wide range of applications in filter materials, oil-absorbing materials, and medical and health fields. Compared with PP, the melting point of polyethylene terephthalate (PET) is much higher. The non-woven fabric prepared from PET has higher strength...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10D04H1/4382
CPCD01F6/92D01F1/10D04H1/4382
Inventor 郭运松
Owner HEFEI SHENGDA GARMENT ACCESSORIES CO LTD
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