Waterproof moisture-permeable film and preparation method thereof

A technology of waterproof and moisture-permeable membrane and moisture-permeable membrane, which is applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., and can solve problems such as uneven micropore structure, uneven micropore, complicated method and process, etc. , to achieve improved waterproof performance and moisture permeability, excellent moisture permeability and waterproof performance, and uniform microporous structure

Pending Publication Date: 2021-04-16
泉州市伊呗思谷化妆品科技有限公司
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of the co-stretching method is that the thickness of the composite film is controllable and non-toxic, but the disadvantage is that the process is more complicated, so this method is still in the experimental state
The method for preparing the composite film provided in this patent often has poor adhesion between the polyurethane and the polytetrafluoroethylene base tape, which reduces the adhesion fastness of the composite film
However, the method for preparing composite membran

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Waterproof moisture-permeable film and preparation method thereof
  • Waterproof moisture-permeable film and preparation method thereof
  • Waterproof moisture-permeable film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037]Preparation of S1, moisture permeability film layer 10 coating liquid; pyrin protein, calcium chloride, ethanol, and deionized water mixed and dialyzed, collected dialysate and mixed with polylactic acid and added to dimethyl sulfoxide , Stir mixed with stirring and deprecated at room temperature, resulting in a moisture permeable film layer 10 coating liquid;

[0038]Preparation of the matrix fiber membrane; TPU polyurethane and the addition of N, N-dimethylformamide dissolve, collect the matrix dissolution, and add chitosan, lithium chloride and tetrabutylammonium chloride, stir Mixed and placed at room temperature to stand, collect the spinning liquid and electrostatically spinning, the spinning matrix fiber membrane is obtained;

[0039]S3, a water-repellent film was prepared, and the prepared matrix fiber membrane was placed in a acetic acid solution, and after standing for 6 to 8 h, filtered and placed in an oven, and the waterproof fiber membrane was collected.

[0040]S4, the p...

Example Embodiment

[0050]Example 1

[0051]According to the weight of the weight, 10 parts of silk fibroin, 3 parts of calcium chloride, 6 parts of ethanol, and 60 parts of deionized water mixed and dialyzed, and the dialysate and polylactic acid were collected and added to dimethyl. In sulfoxide, stirring is mixed and placed at room temperature to redeemer, and the moisture permeable film layer 10 coating liquid; TPU polyurethane is dissolved in N, N-dimethylformamide, collect the matrix dissolution and pair According to the weight of the weight, 45 parts of the substrate dissolved, 3 parts of chitosan, 0.01 parts of lithium chloride and 0.5 parts of tetrabutylammonium chloride, stir mixed with stirring and placed at room temperature to stand, collect The spinning fluid is treated with electrospinning, the spinning voltage is 12 kV, the spinning flow rate is 2 ml / h, the receiving distance is 9 cm, electrospinning and collects spinning fibers, the spinning matrix fiber film; the base body will be prepa...

Example Embodiment

[0052]Example 2

[0053]According to the weight of the weight, 12 parts of silk fibroin, 4 parts of calcium chloride, 7 parts of ethanol and 70 parts of deionized water mixed and mixed, collected, collected and polylactic acid compound and added to dimethyl. In sulfoxide, stirring is mixed and placed at room temperature to redeemer, and the moisture permeable film layer 10 coating liquid; TPU polyurethane is dissolved in N, N-dimethylformamide, collect the matrix dissolution and pair According to the weight of the weight, 47 parts of the base dissolved liquid, 4 parts chitosan, 0.01 parts of lithium chloride and 0.7 parts of tetrabutylammonium chloride, stir mixed and stirred at room temperature, and collected. The spinning liquid is treated with electrospinning, the spinning voltage is 13 kV, the spinning liquid flow rate is 2 mL / h, the receiving distance is 10 cm, electrospinning and collects spinning fibers, the spinning matrix fiber membrane; the matrix will be prepared The fiber...

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
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of waterproof films, and particularly relates to a waterproof moisture-permeable film and a preparation method thereof. The waterproof moisture-permeable film comprises multiple moisture-permeable film layers, wherein the moisture-permeable film layers are formed into a resin film piece, the moisture-permeable film layers are provided with pore channel structures penetrating through the moisture-permeable film layers in a thickness direction, and the pore channel structures are arranged in the moisture-permeable film layers at intervals along the extension direction of the axis of the moisture-permeable film layers; multiple waterproof film layers arranged on one side of the moisture-permeable film layers and form a resin film part, wherein through holes penetrating through the moisture-permeable film layers in the thickness direction of the moisture-permeable film layer are formed in the moisture-permeable film layer, and the through holes are arranged at equal intervals in the extending direction of the axis of the waterproof film layers. The waterproof and moisture-permeable membrane material disclosed by the embodiment of the invention is relatively good in bonding performance, high in mechanical property, uniform in microporous structure and excellent in moisture-permeable and waterproof performance.

Description

technical field [0001] The invention belongs to the technical field of waterproof films, in particular to a waterproof and moisture-permeable film and a preparation method thereof. Background technique [0002] Polymer films that are both waterproof and moisture-permeable and their laminated fabrics are called "breathable" fabrics. It can prevent water with a certain pressure or rain, snow, dew, etc. with a certain kinetic energy from penetrating or soaking the fabric, while the water vapor inside the fabric, such as human sweat vapor and other harmful gases, can be transmitted to the outside, thus reflecting waterproof and moisture permeability The comfort of fabrics such as clothing, tents, etc. With the development of the economy and the continuous improvement of living standards, people's demand for waterproof and moisture-permeable fabrics is increasing day by day, and the requirements for quality are also getting higher and higher. High-quality waterproof and breatha...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D06N3/00D04H1/728D04H3/02D06M13/188B32B27/02B32B27/40B32B27/12B32B33/00B32B3/24B32B37/00B32B38/16D06M101/38
Inventor 谷佑芽
Owner 泉州市伊呗思谷化妆品科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products