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Water repellent and oleophylic composite needling non-woven fabric and preparation method thereof

A technology of composite needles and non-woven fabrics, which is applied in the direction of non-woven fabrics, textiles and papermaking, general water supply saving, etc., can solve the problems of poor absorption capacity, high product cost, complicated production process, etc., and achieve the effect of preventing water absorption

Active Publication Date: 2019-01-18
NANTONG TEXTILE & SILK IND TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN102953268A discloses a preparation method of super-oleophilic and super-hydrophobic oil-water separation polyester textiles. Although the fabric is treated with a fluorine-free water repellent, the preparation method is complicated to operate, and the tensile strength of the textile does not increase after treatment. be improved
The Chinese document "Preparation and performance research of modified MBPP / water-repellent PET composite oil-absorbing material, Wang Dan et al., Industrial Textiles, 2016, (1): 6-11, 44" discloses the preparation method of composite oil-absorbing material based on PET , although fluorine-free water repellent is also used to treat the fabric, the oil absorption rate of the composite material prepared by this method is still unsatisfactory when it is repeatedly used, and the strength of the fabric has not been significantly improved
[0005] At present, the use of water-repellent and lipophilic materials to deal with oil pollution is still in the research and development stage, so the existing water-repellent and lipophilic products still have certain problems, such as complex production process, poor product comprehensive performance, low oil-water separation efficiency, and product Disadvantages such as high cost and poor absorption capacity, especially the water-repellent treatment in the process of lipophilicity tends to cause too much or too little water absorption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Water repellent and oleophylic composite needling non-woven fabric and preparation method thereof
  • Water repellent and oleophylic composite needling non-woven fabric and preparation method thereof
  • Water repellent and oleophylic composite needling non-woven fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Preparation of PET / ES needle-punched non-woven fabric: fully mix PET fiber and ES fiber at a mass ratio of 3:1, and then process the blended fiber by needle punching process: PET / ES Opening and mixing → carding into web → lapper → pre-needling → main needling to obtain PET / ES needle-punched non-woven fabric. In order to increase the strength of the non-woven fabric, the pre-needled material was laminated for main needling, and the power frequency was set to 13Hz.

[0045] (2) Take part of the PET / ES needle-punched non-woven fabric prepared in step (1) for heat-drying treatment, put the sample into an oven, and heat-dry it for 60 minutes at a temperature of 120°C.

[0046] (3) Then use a fluorine-free water repellent aqueous solution with a concentration of 50mL / L to perform water-repellent treatment on the sample that has been heated and baked. The bath ratio of the fluorine-free water repellent aqueous solution to the sample is 10:1-20:1. Process flow: PET / ES need...

Embodiment 2

[0048] Hydrophobic and lipophilic composite needle-punched nonwoven fabrics were prepared according to the method of Example 1, except that in step (1), the mass ratio of PET fibers to ES fibers was 1:1.

Embodiment 3

[0050] Hydrophobic and lipophilic composite needle-punched nonwoven fabrics were prepared according to the method of Example 1, except that in step (1), the mass ratio of PET fibers to ES fibers was 1:3.

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Abstract

The invention relates to a water-repellent and oleophylic composite needling non-woven fabric and a preparation method thereof. The method comprises the following steps of: blending PET fiber and polyolefin fiber with to a mass ratio of 3:1-1:3, and carrying out needling to obtain the composite needling non-woven fabric; carrying out hot-drying treatment on the composite needling non-woven fabricat 110-160 DEG C, wherein the treatment time is 40-90 minutes; carrying out padding and water-repellent finishing on the hot-dried fabric by using a modified resin-like fluorine-free waterproof agentaqueous solution with the concentration of 50-70mL / L, wherein the air pressure of the padding and water-repellent finishing is 1.8 kPa, the liquid rate is 160-230%, and drying to obtain the water-repellent and oleophylic composite needling non-woven fabric. The preparation method is simple, the water repellency, lipophilicity and tensile strength of the prepared composite needling non-woven fabricare obviously improved compared with the fabric before treatment.

Description

technical field [0001] The invention relates to the technical field of textile finishing, in particular to a water-repellent and lipophilic composite needle-punched nonwoven fabric and a preparation method thereof. Background technique [0002] With the development of science and technology, crude oil spills and oily wastewater discharges from factories have had a great impact on the ocean and river environments, posing a threat to the human environment. Water-repellent and lipophilic materials have special wetting properties, which can absorb oily liquid in water, but do not absorb excess water, resulting in separation of water and oil, so as to purify water sources. [0003] Using water-repellent and lipophilic materials to deal with oil pollution is a low-cost and high-efficiency method. Using textiles as the base to construct water-repellent and lipophilic surfaces increases the application value of textiles. In recent years, the development momentum of non-woven techno...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/435D04H1/4291D04H1/46D06M15/00D06M101/20D06M101/32
CPCD04H1/4291D04H1/435D04H1/4382D04H1/46D06M15/00D06M2101/20D06M2101/32D06M2200/12D06M23/00D04H1/485D04H1/43835Y02A20/204D04H3/005D04H3/011D04H3/105D04H3/153D06B1/14D06M13/525D06M2101/30D06N3/0011D06N3/0036D06N3/0038D06N3/0088D06N2209/142
Inventor 赵荟菁张迎梅董伊航章梦雪
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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