A kind of preparation method of ultra-thin and ultra-transparent microporous membrane

A microporous film, ultra-thin technology, applied in textiles and papermaking, etc., can solve the problems of low air permeability and difficulty in taking into account the anti-drilling effect, and achieve excellent waterproof performance, excellent anti-drilling performance, and excellent air permeability.

Active Publication Date: 2022-08-09
WUJIANG HANTA TEXTILE FINISHING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, water-based environmentally friendly ultra-fine foaming (below 5 μm) and ultra-thin (below 5 μm) coatings have always been difficult problems to solve in the industry. If this problem can be solved, it is expected to obtain internal communication network high transparency through ultra-fine and nano-foaming Ultra-thin micro-nanoporous film, and then solve the problem that the fabrics in the prior art are difficult to take into account the excellent anti-drilling effect, good air permeability and small thickness

Method used

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  • A kind of preparation method of ultra-thin and ultra-transparent microporous membrane
  • A kind of preparation method of ultra-thin and ultra-transparent microporous membrane
  • A kind of preparation method of ultra-thin and ultra-transparent microporous membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A preparation method of an ultra-thin and ultra-transparent microporous membrane, such as figure 1 shown, the specific steps are as follows:

[0045] (1) Preparation of raw materials;

[0046] Water-based glue: PU;

[0047] Functional additives: Shanghai Huzheng colorless and transparent nano-silver solution, the grade is AGS-WM1000A / B / C;

[0048] Water-based foam stabilizer: Shenzhen Guangsiyuan polyurethane soft foam stabilizer GSYPU G-595 silicone oil;

[0049] Silicone resin polyether emulsion water-based foam stabilizer: Shandong Yousu Chemical modified silicone resin polyether microemulsion FM-550;

[0050] water;

[0051] Base fabric: superfine denier filament fabric;

[0052] Hydrophobic finishing agent: Shanghai Huzheng colorless transparent hydrophobic coating additive SSJ-FG3 / SSJ-F181;

[0053] (2) Adjusting glue;

[0054] In parts by weight, 100 parts of water-based glue, 2 parts of functional additives and water were mixed in a glue bucket to obtain ...

Embodiment 2

[0073] A method for preparing an ultra-thin and ultra-transparent microporous membrane is basically the same as that in Example 1, except that step (6) is omitted.

[0074] The final ultra-thin and ultra-transparent microporous membrane is a membrane containing micropores, the thickness of the membrane is 5 μm, the pore diameter of the micropores is 1-5 μm, and the average pore diameter is 3 μm; the air permeability of the membrane is in accordance with GB / T 5453 "Textiles. The standard test of "Testing of the Air Permeability of Fabrics" conforms to the national standard, and the anti-drilling property of the film conforms to the national standard according to the GB / T14272-2011 "Down Clothing" standard. KPa.

[0075] Comparing Example 1 with Example 2, it can be seen that the thickness of the ultra-thin and ultra-transparent microporous film without hot pressing of Example 2 is slightly higher than that of the ultra-thin and ultra-transparent microporous film of Example 1 th...

Embodiment 3

[0077] A preparation method of an ultra-thin and ultra-transparent microporous membrane, the specific steps are as follows:

[0078] (1) Preparation of raw materials;

[0079] Water-based glue: PU;

[0080]Functional additives: Shanghai Huzheng colorless and transparent nano-silver solution, the grade is AGS-WM1000A / B / C;

[0081] Water-based foam stabilizer: Shenzhen Guangsiyuan polyurethane soft foam stabilizer GSYPU G-595 silicone oil;

[0082] Silicone resin polyether emulsion water-based foam stabilizer: Shandong Yousu Chemical modified silicone resin polyether microemulsion FM-550;

[0083] water;

[0084] Basement membrane: opp membrane;

[0085] Hydrophobic finishing agent: Shanghai Huzheng colorless transparent hydrophobic coating additive SSJ-FG3 / SSJ-F181;

[0086] (2) Adjusting glue;

[0087] In parts by weight, 100 parts of water-based glue, 2 parts of functional additives and water were mixed in a glue bucket to obtain a mixture with a viscosity of 500 CPS, t...

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Abstract

The invention relates to a preparation method of an ultra-thin and ultra-transparent microporous membrane. The ultra-thin and ultra-transparent microporous membrane is a membrane containing micropores, the thickness of the membrane is below 5 μm, and the pore size of the micropores is below 5 μm; the preparation method is as follows: : Use a micro-nano foaming machine to foam the water-based foam to obtain bubbles, and then carry out micro-concave high-precision coating to obtain an ultra-thin and ultra-transparent microporous film; the water-based foam is mainly composed of water-based glue, water-based foam stabilizer, It is composed of silicone resin polyether emulsion water-based foam stabilizer and water; the foaming control parameters of the micro-nano foaming machine include: the specific gravity of the bubbles is 350~700 g / L, the working speed of the stirring head is 250~400 rpm, and the output of the pump 100~500L / hour; the diameter of the bubbles is less than 5μm; the thickness of the coating is less than 5μm during micro-concave high-precision coating, and at the same time greater than or equal to the diameter of the bubbles. The method of the invention is simple, the thickness of the prepared product is small, and the air permeability and anti-drilling down property are good, which effectively fills the blank of the prior art.

Description

technical field [0001] The invention belongs to the technical field of textile finishing and coating, and relates to a preparation method of an ultra-thin and ultra-transparent microporous film. Background technique [0002] Down jackets, duvets and many outdoor textiles are very popular due to their good thermal insulation properties. However, down fillers such as duck down, goose down, and hollow chemical fiber will move out of the fabric through the needle eye, resulting in the phenomenon of drilling down and affecting the fabric quality. wearing effect. In the prior art, the anti-drilling effect of fabrics is often improved by coating, wherein coating refers to applying a layer of anti-downing glue or PU glue on the surface of the fabric to block the pores between fibers and prevent down drilling. Out, although the coating can improve the anti-drilling effect of the fabric, it will reduce the air permeability of the fabric. On the one hand, it will affect the comfort. ...

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 Patents(China)
IPC IPC(8): D06N3/00
CPCD06N3/0043D06N3/0059D06N3/0004D06N3/0006D06N3/0077D06N2209/025D06N2209/121D06N2209/128D06N2209/1635D06N2211/10
Inventor 汪明星沈红霞陈玉林
Owner WUJIANG HANTA TEXTILE FINISHING
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