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PAA-TEOS-OA combined treatment-based finishing method for polyester or polyamide hydrophobic fabric

A PAA-TEOS-OA, combined processing technology, applied in fiber processing, textile and papermaking, fiber type, etc., can solve problems such as application limitations, environmental problems, etc., achieve good static contact angle of water droplets, avoid environmental problems, whiteness added effect

Active Publication Date: 2015-07-08
高青如意纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Application of perfluorinated chemical reagents is limited due to environmental concerns

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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  • PAA-TEOS-OA combined treatment-based finishing method for polyester or polyamide hydrophobic fabric
  • PAA-TEOS-OA combined treatment-based finishing method for polyester or polyamide hydrophobic fabric
  • PAA-TEOS-OA combined treatment-based finishing method for polyester or polyamide hydrophobic fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Fabric: Polyester woven fabric (50D*50D / 168*128)

[0029] 1) Prescription: 2g / L accelerator (cationic surfactant 1227)

[0030] NaOH concentration is 5%

[0031] Method: liquor ratio: 1:30

[0032] Temperature: 90°C

[0033] Time: 10 minutes

[0034] 2) Prescription: 4g / L polyacrylic acid (molecular weight 240000)

[0035] Method: Stir and soak for 12 hours, the excess rate is 110%, bake at 120°C for 3 minutes.

[0036] 3) Prescription: tetraethyl orthosilicate 5%

[0037] Ethanol: water = 7:3

[0038] Ammonia 5%

[0039] Method: Dip for 2 hours and bake at 90°C.

[0040] 4) Prescription: ethanol

[0041] Ammonia 4%

[0042] Octadecylamine 5%,

[0043] Method: liquor ratio: 1:20

[0044] Temperature: room temperature

[0045] Time: 12 hours

[0046] Baking: 120°C, 2 minutes

[0047] figure 1 SEM images of untreated and alkali-reduced-PAA-TEOS-OA treated polyester woven fabrics. Compared with the original polyester fabric, the surface of the treated poly...

Embodiment 2

[0056] Fabric: Nylon woven fabric (50D*50D / 109*81)

[0057] 1) Prescription: 4g / L polyacrylic acid (molecular weight 240000)

[0058] Method: Stir and soak for 20 hours, bake at 120°C for 2 minutes.

[0059] 2) Prescription: tetraethyl orthosilicate 3%

[0060] Ethanol: water = 7:3

[0061] Ammonia 5%

[0062] Method: Bath ratio: 1:30

[0063] Temperature: room temperature

[0064] Time: 4 hours

[0065] 3) Prescription: ethanol

[0066] Ammonia 1%

[0067] Octadecylamine 3%,

[0068] Method: Bath ratio: 1:30

[0069] Temperature: room temperature

[0070] Time: 12 hours

[0071] Baking: 150°C, 5 minutes

[0072] The water resistance and physical properties of nylon before and after the method of the present invention are treated are as shown in Table 2. The results show that the static contact angle, spray resistance and hydrostatic pressure resistance of the fabric are significantly improved, indicating that the product prepared by the invention has good hydroph...

Embodiment 3

[0080] Use the following method to process nylon woven fabric (50D*50D / 109*81):

[0081] (1) Polyacrylic acid treatment: add 2 g / L of polyacrylic acid (molecular weight: 5000) solution to the fabric, stir and impregnate for 12 hours, take out the fabric, roll it once on a padding machine, bake at 80°C for 1 minute, fully wash with water after treatment, and dry;

[0082] (2) Tetraethyl orthosilicate treatment: the mixture of propanol and water is the reaction solution, the ratio is 9:1, the concentration of tetraethyl orthosilicate is 2%, the pH is 3, and 2% of tetraethyl orthosilicate is added after 2 hours of fabric treatment. Ammonia, treated for 5 hours, fully washed with water after treatment, and dried;

[0083] (3) Octadecylamine treatment: Add ethanol, 1% ammonia water, and 2% octadecylamine at a bath ratio of 1:15. After the fabric is treated for 2 hours, it is rolled by a paddle car and baked at 100°C for 5 minutes.

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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Abstract

The invention discloses a PAA-TEOS-OA combined treatment-based finishing method for a polyester or polyamide hydrophobic fabric, and belongs to the technical field of functional textiles. A fabric is subjected to pretreatment by utilizing polyacrylic acid, so that the capability of the fabric in the aspect of reacting with a subsequent chemical reagent is improved, and a bridge function is achieved; tetraethyl orthosilicate is hydrolyzed and polycondensed under an acid or alkali condition, and particular matters are formed on the surface of the fabric, so that a function of roughening the fabric is achieved; long-chain alkane type octadecylamine can effectively reduce surface energy of the fabric, and meanwhile, the environment problem caused by perfluoronic compounds is avoided; in the finishing treatment, traditional soaking, rolling, baking and roasting processes are utilized, so that the homogeneity and the repeatability of products are good, and the cost is low; the polyacrylic acid, the tetraethyl orthosilicate and the octadecylamine, which are utilized in the whole finishing process, need to be utilized under weak acid and weak alkali conditions, and the baking temperature is low, so that the damage to the fabric is small; the finishing method can be applied to finishing a hydrophobic function of the polyester or polyamide fabric.

Description

technical field [0001] The invention relates to a finishing method of polyester or brocade hydrophobic fabrics based on PAA-TEOS-OA joint treatment, which is suitable for post-finishing of polyester and brocade fabrics and belongs to the technical field of functional textiles. Background technique [0002] The hydrophobicity of the fabric refers to the resistance of the fabric to water. The purpose of hydrophobic finishing is to prevent water from wetting the fabric, and the fabric still maintains air and moisture permeability after finishing. Water-repellent finishing fabrics were first used to produce military uniforms and protective clothing, and now they are widely used to make sportswear, travel bags, umbrellas, tents, etc. The demand for such fabrics in domestic and international markets is increasing year by year. Polyester has good mechanical properties, such as high breaking strength and elastic modulus, moderate resilience; excellent heat resistance and light resi...

Claims

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Application Information

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IPC IPC(8): D06M15/263D06M13/328D06M11/79D06M15/643D06M101/32D06M101/34
Inventor 杜金梅王鸿博许长海孙昌唐烨傅臻罗雄方
Owner 高青如意纺织有限公司
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