FXB molecular film and production process thereof

By adding porous structural molecules to the TPU, PU or PTFE glue materials, a FXB molecular film with breathable, moisture permeable and high hydrostatic pressure is produced, which solves the shortcomings of the existing membrane materials in breathable, moisture permeable and hydrostatic pressure, and realizes the versatile application of the material.

CN120399431APending Publication Date: 2025-08-01SHAOXING WIND VANE TEXTILE CO LTD
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Patent Information

Application Number
CN202510811191.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2025-08-01

AI Technical Summary

Technical Problem

Existing TPU, PU and PTFE films have shortcomings in breathability, moisture permeability and hydrostatic pressure. Film materials with three balances on the market, such as GORE-TEX, are expensive and have limited authorization, and cannot be popularized.

Method used

Porous structural molecules are added to the TPU, PU or PTFE glue material, with a pore size of 0.3-1.0 nanometers, including silica, aluminum trioxide, iron oxide, magnesium oxide, and calcium oxide, with a ratio of 10-25%. Through stirring, plastic granulation and casting, an FXB molecular film with regular channels and cavity is formed.

Benefits of technology

The FXB molecular film is produced that is breathable, moisture-permeable and has high water pressure to maintain the flexibility and processability of the material, expand the application boundaries of the material, and improve the comfort of the garment.

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Abstract

The invention discloses an FXB molecular film which is characterized in that a porous structure is formed in the film, regular channels and cavities are formed in the porous structure, and the pore diameter is 0.3-1.0 nm. During production, porous structure molecules are added into a tpu or pu or PTFE glue material, the proportion of the added porous structure molecules is 10-25%, the porous structure molecules and the tpu or pu or PTFE glue material are fully mixed, the mixture is cast into the film through a casting machine, and the FXB molecular film is prepared. By means of the combination, the porous structure molecule-PU and TPU composite material can obviously expand the application boundary of traditional PU and TPU, becomes the innovation direction of functional high polymer materials, is used for fabric composite processing, and enables ready-made clothes to have comfortable air permeability and moisture permeability.
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Description

Technical Field

[0001] The invention belongs to the field of textile fabrics, and in particular relates to an FXB molecular film and a production process thereof. Background Art

[0002] Currently available TPU membranes lack moisture permeability, water vapor permeability, and hydrostatic pressure resistance. By adding porous structural molecules to the TPU raw material, we have made the TPU membrane breathable, moisture permeable, and hydrostatic pressure resistant. PU membranes are breathable and moisture permeable, but lack hydrostatic pressure resistance. By adding porous structural molecules to the PU raw material, we have made the PU membrane breathable, moisture permeable, and hydrostatic pressure resistant. While PTFE membranes have good moisture permeability and high hydrostatic pressure resistance, they lack breathability, failing to achieve a perfect balance.

[0003] Currently, there is only one membrane on the market that has the effects of air permeability, moisture permeability, and hydrostatic pressure, which is the American GORE-TEX membrane. This membrane is extremely expensive and is only authorized to a small number of brands in China, making it impossible for most people to enjoy this breathable and moisture-permeable clothing experience. Therefore, the applicant has proposed a production process for FXB molecular membrane to meet the market demand for this fabric. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a production process for an FXB molecular membrane, which has the characteristics of air permeability, moisture permeability and high net water pressure.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An FXB molecular membrane is characterized by a porous structure in the membrane, regular channels and cavities inside the porous structure, and a pore diameter between 0.3 and 1.0 nanometers.

[0006] A FXB molecular film production process is characterized by: adding porous structure molecules to TPU or PU or PTFE glue materials, with the added porous structure molecules ratio being between 10-25%, using a stirrer to fully mix them, then using a plastic granulator to make plastic particles of FXB molecules, then using a casting machine to cast into a film, and then quickly cooling and winding into a roll.

[0007] Preferably, the porous structure molecules include silicon dioxide, aluminum oxide, iron oxide, magnesium oxide, and calcium oxide, wherein the weight proportions are respectively: Silicon dioxide, 40-55%; Aluminum oxide, 20-35%; Iron oxide, 5-10%; magnesium oxide, 2-5%; Calcium oxide, 2-5%.

[0008] The beneficial effects of the present invention are as follows: The FXB molecular membrane produced by this invention is breathable, moisture-permeable, and boasts high net water pressure. The porous molecules have regular channels and cavities within them, with pore sizes ranging from 0.3 to 1.0 nanometers, creating a molecular sieve effect. Water clusters are approximately 5 nanometers, while water molecules are around 0.4 nanometers. This allows TPU, PU, or PTFE membranes to transform from being airtight, moisture-impermeable, and having no hydrostatic pressure to being moisture-permeable, with hydrostatic pressure.

[0009] Because the porous structure molecules are media and do not change the composition of the membrane, they will not shrink when exposed to high temperatures, so they can be processed at high temperatures without affecting the breathable and moisture-permeable effects. Adding porous structure molecules to PU membranes, TPU membranes, or PTE membranes can give these materials functional breathable and moisture-permeable properties while retaining their original flexibility, wear resistance, and processability.

[0010] Through this combination, porous structure molecules - PU, TPU composite materials can significantly expand the application boundaries of traditional PU, TPU, become an innovative direction of functional polymer materials, and be used in fabric composite processing to make ready-made clothes have comfortable breathable and moisture-permeable properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic cross-sectional view of the FXB molecular membrane of the present invention. DETAILED DESCRIPTION

[0012] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0013] The present invention relates to a production process for an FXB molecular membrane. The process comprises adding porous structure molecules to a TPU, PU or PTFE glue material, wherein the proportion of the porous structure molecules added is between 10-25%, and the mixture is fully mixed using a stirrer. A plastic granulator is then used to produce plastic particles of the FXB molecules, which are then cast into a film using a casting machine. The film is then rapidly cooled and wound into a roll. The porous structure molecules include silicon dioxide, aluminum oxide, iron oxide, magnesium oxide and calcium oxide, wherein the proportions by weight are as follows: silicon dioxide, 40-55%; aluminum oxide, 20-35%; iron oxide, 5-10%; magnesium oxide, 2-5%; and calcium oxide, 2-5%.

[0014] The above process yields an FXB molecular membrane with a porous structure containing regular channels and cavities with pore sizes ranging from 0.3 to 1.0 nanometers. This FXB molecular membrane exhibits air and moisture permeability, as well as high net water pressure. The porous molecules within the membrane have regular channels and cavities with pore sizes ranging from 0.3 to 1.0 nanometers, creating a molecular sieve effect. Water clusters are approximately 5 nanometers, while water molecules are approximately 0.4 nanometers. This allows TPU, PU, or PTFE membranes to transform from being air-impermeable, moisture-impermeable, and hydrostatically pressure-free to being moisture-permeable and hydrostatically pressure-stable.

[0015] Because the porous structure molecules are media and do not change the composition of the membrane, they will not shrink when exposed to high temperatures, so they can be processed at high temperatures without affecting the breathable and moisture-permeable effects. Adding porous structure molecules to PU membranes, TPU membranes, or PTE membranes can give these materials functional breathable and moisture-permeable properties while retaining their original flexibility, wear resistance, and processability.

[0016] Through this combination, porous structure molecules - PU, TPU composite materials can significantly expand the application boundaries of traditional PU, TPU, become an innovative direction of functional polymer materials, and be used in fabric composite processing to make ready-made clothes have comfortable breathable and moisture-permeable properties. Example

[0017] The difference from Example 1: The present invention relates to a production process for an FXB molecular membrane, wherein porous structure molecules are added to a TPU or PU or PTFE glue material, with the proportion of the porous structure molecules added being between 15-20%, and the mixture is fully mixed using a stirrer. A plastic granulator is then used to make plastic particles of the FXB molecules, which are then cast into a film using a casting machine, and the film is rapidly cooled and wound into a roll. The porous structure molecules include silicon dioxide, aluminum oxide, iron oxide, magnesium oxide, and calcium oxide, wherein the weight proportions are as follows: silicon dioxide, 45-50%; aluminum oxide, 25-30%; iron oxide, 7-10%; magnesium oxide, 3-5%; and calcium oxide, 4-5%. Example

[0018] The difference from Example 1 is that the present invention relates to a production process for FXB molecular membranes, wherein porous structure molecules are added to TPU or PU or PTFE glue materials, and the proportion of the porous structure molecules added is between 19-20%. A stirrer is used to fully mix them, and then a plastic granulator is used to make plastic particles of FXB molecules, which are then cast into a film through a casting machine, and then quickly cooled and wound into a roll. The porous structure molecules include silicon dioxide, aluminum oxide, iron oxide, magnesium oxide, and calcium oxide, wherein the weight proportions are as follows: silicon dioxide, 48-55%; aluminum oxide, 25-35%; iron oxide, 7-8%; magnesium oxide, 3-4%; and calcium oxide, 4-5%. Example

[0019] The difference from Example 1 is that the present invention relates to a production process for FXB molecular membrane, wherein porous structure molecules are added to TPU or PU or PTFE glue material, and the proportion of the added porous structure molecules is between 18-19%. A stirrer is used to fully mix them, and then a plastic granulator is used to make plastic particles of FXB molecules, which are then cast into a film through a casting machine, and then wound into a roll after rapid cooling. The porous structure molecules include silicon dioxide, aluminum oxide, iron oxide, magnesium oxide, and calcium oxide, wherein the weight proportions are as follows: silicon dioxide, 50%; aluminum oxide, 35%; iron oxide, 8%; magnesium oxide, 3%; and calcium oxide, 4%.

Claims

1. An FXB molecular film, characterized in that: The film has a porous structure with regular channels and cavities inside, and the pore diameter is between 0.3 and 1.0 nanometers.

2. A production process for the FXB molecular film described in claim 1, characterized in that: Add porous structure molecules to TPU or PU or PTFE glue materials, and add the porous structure molecules in a ratio between 10-25%. Mix them thoroughly, cast them into a film through a casting machine, and then wind them into a roll after rapid cooling.

3. The production process of an FXB molecular film according to claim 2, characterized in that: The porous structure molecules include silicon dioxide, aluminum oxide, iron oxide, magnesium oxide, and calcium oxide, wherein the weight proportions are as follows: Silicon dioxide, 40-55%; Aluminum oxide, 20-35%; Iron oxide, 5-10%; magnesium oxide, 2-5%; Calcium oxide, 2-5%.