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Method for preparing nano-TiO2 nylon 66 resin and fibre having anti-ultraviolet function

A nano-titanium dioxide and anti-ultraviolet technology, which is applied in the field of fibers and textiles, can solve the problems of poor anti-ultraviolet function of nylon fibers, etc., and achieve the effects of soft hand feeling and comfort, good air permeability and soft luster

Inactive Publication Date: 2015-05-20
LIAONING YINZHU CHEMTEX GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As we all know, nylon fiber, especially nylon 66 fiber, occupies an important position in the production and application of chemical fiber due to its excellent performance, especially in the field of light and light women's clothing fabrics and women's stockings. However, nylon fiber itself is UV-resistant The function is poor, so it is necessary to give nylon fiber anti-ultraviolet function

Method used

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  • Method for preparing nano-TiO2 nylon 66 resin and fibre having anti-ultraviolet function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Injecting TiO into the polymer melt at the outlet of the flash pump during the polycondensation reaction of nylon 66 2 suspension, which will then be injected into the TiO 2 The polymer melt of the suspension undergoes post-condensation process to obtain nano-TiO 2 Nylon 66 resin.

[0034] The purchased titanium dioxide (TiO 2 ) products containing Mn +2 , whose indicators are as follows:

[0035] CUB value 15.3 ~ 18;

[0036] PH value (25%) 7.7 ~ 9.1;

[0037] TiO 2 Content (%)93.8~95.6;

[0038] Dispersion ability (%)68~76;

[0039] mn +2 Content (%) 0.15 ~ 0.28.

[0040] Using the above containing Mn +2 Titanium dioxide (TiO 2 ) products prepared by TiO 2 The suspension conditions are as follows:

[0041] (1) Titanium dioxide products (containing Mn +2 ) is added to a certain amount of water, the amount added is 30wt%;

[0042] (2) Add dispersant Na to the product obtained in step (1) according to the required amount 4 P 2 o 7 , and then settled for ...

Embodiment 2

[0050] Injecting TiO into the polymer melt at the outlet of the metering pump during the polycondensation reaction of nylon 66 2 suspension, which will then be injected into the TiO 2 The polymer melt of the suspension undergoes post-condensation process to obtain nano-TiO 2 Nylon 66 resin.

[0051] In this example TiO 2 The composition of the suspension is as follows (preparation of the following components directly):

[0052] TiO 2 22wt.%;

[0053] Mn(Ac) 2 8ppm;

[0054] Dispersant Na 4 P 2 o 7 0.5-2wt.%;

[0055] The rest is water.

[0056] The TiO 2 The injection amount of the suspension is 1.8 wt.% of the weight of the polymer melt.

[0057] During the polycondensation reaction of nylon 66, inject TiO into the polymer melt at the outlet of the flash pump after the precondensation is completed. 2 suspension.

[0058] The dispersant is Na 4 P 2 o 7 .

[0059] The obtained nano-TiO 2 Nylon 66 resin has a viscosity index (ml / ...

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Abstract

The invention discloses a method for preparing nano-TiO2 nylon 66 resin and fibre having an anti-ultraviolet function, belonging to the technical field of fibre and textiles. The method disclosed by the invention comprises the following steps: injecting TiO2 suspension into a polymer melt at the outlet of a flash evaporation pump in the condensation polymerization process of nylon 66 at first, and then, carrying out post condensation polymerization of the polymer melt injected with the TiO2 suspension so as to obtain nano-TiO2 nylon 66 resin; and then, carrying out melt spinning of the nano-TiO2 nylon 66 resin so as to obtain nano-TiO2 nylon 66 fibre. The nylon 66 fibre having excellent properties and the anti-ultraviolet protection function can be manufactured from the nylon 66 resin manufactured by the invention through a POY-DTY (Polyester Pre-Oriented Yarn-Draw Texturing Yarn) spinning technology; and the fibre can be processed into high-quality clothes or costume materials having gentle lustre, soft hand feeling and comfort, good air permeability, abrasion resistance and easy rinsing property and having anti-ultraviolet and nursing functions.

Description

technical field [0001] The invention relates to the technical field of fibers and textiles, in particular to a method for preparing nano-titanium dioxide nylon 66 resin and fibers with anti-ultraviolet function. Background technique [0002] While human beings began to pay attention to environmental protection, they also began to pay attention to the protection of the human body. Facing more and more serious environmental problems, anti-ultraviolet textiles have attracted people's attention just like other protective products. Since the early 1990s, foreign countries have Research has been carried out on the UV shielding function of textiles, and many anti-ultraviolet fibers and fabrics have been developed and listed one after another. In recent years, there have been some reports on the development and research of such fibers and textiles in China. [0003] Foreign countries have continuously made progress in fabric anti-ultraviolet radiation finishing technology. As an ul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/26C08K3/22C08L77/06D01F6/90D01D5/08
Inventor 杜选钟涛姜立鹏张瑜刘成家徐洁王丽娟
Owner LIAONING YINZHU CHEMTEX GROUP
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