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Oiling agent for splitting waste polyester-cotton fabric and preparation method thereof

A technology of polyester-cotton fabric and oil agent, which is applied in the direction of plant fiber, fiber type, fiber treatment, etc., and can solve the problem of narrow application area

Active Publication Date: 2021-09-10
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of the pretreatment oil is simple, but it is only suitable for the opening of non-cotton cellulose fibers before spinning, and the applicable area is narrow

Method used

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  • Oiling agent for splitting waste polyester-cotton fabric and preparation method thereof
  • Oiling agent for splitting waste polyester-cotton fabric and preparation method thereof
  • Oiling agent for splitting waste polyester-cotton fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for preparing an oil agent for fiber opening of waste polyester-cotton fabrics, comprising the steps of:

[0041] (1) 30g of oil phase and 10g of surfactant are sheared for 15min at room temperature and at a shear rate of 11350rpm, and mixed uniformly to obtain a coarse emulsion; wherein, the oil phase is dimethyl silicone oil, amino silicone oil, cyclic A mixture of oxygen-modified silicone oil and glycerin, the mass ratio is 3:4:1:4; the surfactant is polyoxyethylene lauryl ether, Tween 80, polydimethyldiallylammonium chloride Mixture, the mass ratio is 6:3:1;

[0042] (2) Add 45 g of water dropwise to the coarse emulsion in step (1) at a rate of 9 g / min, and shear and emulsify for 15 min at a shear rate of 11350 rpm to obtain a composite emulsion, namely an oil agent for fiber opening.

Embodiment 2

[0044] The oil phase in Example 1 was adjusted to 50g, 40g, and 20g; the others were kept the same as in Example 1 to obtain a composite emulsion, that is, an oil agent for fiber opening.

[0045] The mass ratio of the oil phase to the surfactant in Example 1 is 3:1 and the mass ratio of the oil phase to the surfactant in Example 2 is 5:1, 4:1, 2:1. Performance test, the test results are as follows:

[0046] figure 1 The particle size distribution figure of the composite emulsion prepared for the oil phase and surfactant of different mass ratios in embodiments 1 and 2, from figure 1It can be clearly seen that the particle diameter of the oil agent is mainly distributed between 40 and 250nm. When the mass ratio of the oil phase to the surfactant is 2:1, the particle dispersibility is poor; the mass ratio of the oil phase to the surfactant is 3 :1, 4:1, 5:1, the dispersion is more concentrated and the uniformity is better.

[0047] Table 1 is the performance test result of th...

Embodiment 3

[0050] The selection of embodiment 3 oil phase

[0051] Adjust the oil phase in Example 1 to methyl silicone oil, amino silicone oil, the mass ratio of methyl silicone oil to amino silicone oil is 1:1, the mass ratio of epoxy-modified silicone oil to amino silicone oil is 1:2, methyl silicone oil, The mass ratio of amino silicone oil and glycerin is 1:1:1, the mass ratio of methyl silicone oil, amino silicone oil, epoxy-modified silicone oil, and glycerin is 3:4:1:4, and the others are consistent with Example 1 to obtain a composite Emulsion, that is, oil for fiber opening.

[0052] The fiber-opening oil agent that embodiment 3 is obtained is carried out performance test, and test result is as follows table 2:

[0053] It can be seen from Table 2: when using methyl silicone oil as the oil phase alone, the particle effective diameter is 38.5 ± 0.8nm, the particle size is low, the error is small but its dispersibility is poor; when amino silicone oil is used alone as the oil ph...

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Abstract

The invention discloses an oiling agent for splitting a waste polyester-cotton fabric and a preparation method thereof, and belongs to the field of textile materials. The method for preparing the oiling agent comprises the following steps of (1) uniformly mixing an oil phase and a surfactant to obtain a crude emulsion, wherein the oil phase is a mixture of dimethyl silicone oil, amino silicone oil, epoxy modified silicone oil and glycerol in a mass ratio of 3: 4: 1: 4, and the surfactant is a mixture of polyoxyethylene lauryl ether, Tween 80 and poly dimethyl diallyl ammonium chloride in a mass ratio of 6: 3: 1; and (2) slowly dropwise adding a water phase into the crude emulsion, and carrying out high-speed shearing emulsification to obtain a composite emulsion, namely the oiling agent for splitting, wherein the mass ratio of the oil phase to the surfactant to the water phase is (20 to 50): (9 to 11): (40 to 180). The particle size distribution of the oiling agent for splitting provided by the invention is low and ranges from 50 nm to 150 nm; and the centrifugal stability is better, and the phenomena of layering and floating oil are avoided.

Description

technical field [0001] The invention relates to an oil agent for fiber opening of waste polyester-cotton fabrics and a preparation method thereof, belonging to the field of textile materials. Background technique [0002] China is a big country in the textile industry. The textile industry has developed rapidly in recent years. In 2018, the total amount of fiber processing was about 54.6 million tons, and more than 20 million tons of waste textiles were produced annually, of which only 3.8 million tons of waste textiles were comprehensively utilized. lower than developed countries. Most waste textiles are disposed of by incineration or burial, which not only fails to effectively utilize resources, but also causes air pollution, waste of land resources, and even affects groundwater sources. Therefore, the comprehensive reuse of waste textiles has always been an important content of my country's green and low-carbon circular development industrial system. Waste polyester-cot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/148D06M13/224D06M15/643D06M15/647D06M15/65D01F11/00D06M101/06D06M101/32
CPCD06M15/643D06M15/6436D06M15/65D06M15/647D06M13/224D06M13/148D01F11/00D06M2101/32D06M2101/06
Inventor 邓炳耀吴慧萍李大伟刘庆生
Owner JIANGNAN UNIV
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