CN101372535B - Waterproof moisture permeable membrane - Google Patents
Waterproof moisture permeable membrane Download PDFInfo
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- CN101372535B CN101372535B CN2007101312138A CN200710131213A CN101372535B CN 101372535 B CN101372535 B CN 101372535B CN 2007101312138 A CN2007101312138 A CN 2007101312138A CN 200710131213 A CN200710131213 A CN 200710131213A CN 101372535 B CN101372535 B CN 101372535B
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- permeant
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Abstract
The invention discloses a waterproof permeable membrane. Hydrophilic polyurethane is taken as the main ingredient, and added with inorganic compound particles with the particle size of 10nm-25mum. The membrane has the advantages of over 8000mmH2O hydrostatic pressure resistance, more than 60000g/m<2>.24hr moisture permeability, high waterproof permeability effect and special style.
Description
Technical field:
The present invention relates to a kind of waterproof humidity-permeant film.
Background technology:
The film about Waterproof Breathable is various, various in style on the market now, comprises crylic acid resin, polyurethanes, SE, rubber-based resin, tetrafluoroethylene etc.Along with the progress of science and technology, the waterproofing and moisture-penetration performances of various films has had significant progress and since the waterproof and moisture permeability of urethane resin have than large space with take functional, and moderate, so occupy the share maximum on the market.In the market the polyurethane film waterproofing and moisture-penetration performances still in low-level, the contradiction between water pressure resistance and the Water Vapour Permeability solves to such an extent that be not fine, the performance of film is on the low side.The water vapour permeability that particularly embodies snugness of fit is not very high.
At present; On the market no matter be any film, after they and textiles are compound, owing to the slipperiness of face, wear reason such as comfort; All can add back boxing during the processing clothes; Separate contacting of film and skin, improve comfort, so just the lightness of wearing clothes being made a discount has increased cost simultaneously.
Summary of the invention:
The object of the present invention is to provide a kind of high-waterproof high-moisture-permeable property that has, can with skin exposure, the waterproof humidity-permeant film that comfort level is high.
Technical solution of the present invention is:
A kind of waterproof humidity-permeant film is characterized in that: with general hydrophilic polyurethane is staple, and being added with particle diameter in the hydrophilic polyurethane composition is the inorganic compound particles of 10nm～25 μ m, and water pressure resistance is at 8000mmH
2More than the O, Water Vapour Permeability is at 60000g/m
2More than the 24hr.
The content of inorganic compound particles is 1%～20% (weight) in the waterproof humidity-permeant film.The kinetic friction coefficient on film surface is between 0.50～1.00.Face two peak-to-peak distances (distances between two adjacent summits) are 1 μ m～20 μ m.The height at face peak (summit is to the vertical range of peak base) is 0.6 μ m～10 μ m.The thickness of film is 10 μ m～50 μ m.Film draw resistance to spalling more than 1.5N/cm.The elongation of film is between 50%～300%.
Waterproof humidity-permeant film is a staple with the hydrophilic polyurethane, and adding the mineral compound particle diameter is 10nm～25 μ m.If the particle diameter that adds mineral compound is greater than 25 μ m, the thickness of that processing of films is restricted, and Water Vapour Permeability is very low, and feel is hard partially, lacks practicality; If the particle diameter that adds mineral compound is less than 10nm, the feel tackiness of film is very strong so, and feel is poor, and wearing comfort is low, is 10nm～25 μ m so add the mineral compound particle diameter.
Waterproof humidity-permeant film, the content that adds mineral compound is 1%～20%.If content is more than 20%, the film hardening, retractility descends significantly, lacks practicality; If content is below 1%, Water Vapour Permeability descends, and simultaneously, tackiness is arranged, so common mineral compound content is between 5～15%.
Waterproof humidity-permeant film, the kinetic friction coefficient on film surface is between 0.50～1.00.Frictional coefficient is big, and skin exposure is uncomfortable and tackiness is arranged, and frictional coefficient is little, and too smooth the friction with the skin generation increases, and makes human body sensory uncomfortable, so the kinetic friction coefficient on film surface is between 0.50～1.00.
Waterproof humidity-permeant film, face adjacent two peak-to-peak distances are 1 μ m～20 μ m.If two peak separations leave less than 1 μ m, the concave-convex sense of face is very little so, and the face tackiness is strong; Greater than 20 μ m, then the film thickness error becomes big, influences the Waterproof Breathable rerum natura of film, so face adjacent two peak-to-peak distances are between 1 μ m～20 μ m.
Waterproof humidity-permeant film, the height at face peak are 0.6 μ m～10 μ m.If the height at peak is less than 0.6 μ m, the concave-convex sense of face is very little so, and the face tackiness is strong; Greater than 10 μ m, then the film thickness error becomes big, influences the Waterproof Breathable rerum natura of film, so the height at face peak is between 0.6 μ m～10 μ m.
Waterproof humidity-permeant film, thickness are 10 μ m～50 μ m.High water pressure resistance should be arranged, certain water vapour permeability is arranged again, the thick more water pressure resistance of film is high more, and Water Vapour Permeability is low more, and the thin more water pressure resistance of film is low more, and Water Vapour Permeability is high more, thus the thickness of general film all between 15～30 μ m, water pressure resistance, Water Vapour Permeability balance are best.
Waterproof humidity-permeant film, film draw resistance to spalling more than 1.5N/cm.If its intensity of taking in the process can not get ensureing that to water pressure resistance, elongation etc. are all influential, so draw resistance to spalling more than 1.5N/cm less than this value.
Waterproof humidity-permeant film, the elongation of film is between 50%～300%.The elongation of film can react film strength, takes simultaneously in the process, also needs certain elongation, and is suitable between general 50%～300%.
The mineral compound of the above interpolation is a silicon compound.
Waterproof humidity-permeant film of the present invention can fit with various synthon, regenerated fiber, cotton, fiber crops, silk, hair and their made woven cloth, looped fabric, non-woven fabrics such as mixture, obtains the textiles of high added value.In order to improve the feel of this textiles, can before applying, carry out mellowing to base cloth, in order to improve the water pressure resistance of this textiles, can before or after the processing of fitting, refuse water treatment.
Waterproof humidity-permeant film of the present invention, existing skin exposure comfort level is high, and the high-waterproof high-moisture-permeable performance is arranged again, and vapor transfer rate can reach 60000g/m
2More than the 24h, water pressure resistance 8000mmH
2More than the O.
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 be among the embodiment 1 face adjacent two peak-to-peak apart from diagrammatic sketch.
Fig. 2 is the height diagrammatic sketch at face peak.
Embodiment:
A kind of waterproof humidity-permeant film, its working method:
With 100 ones of hydrophilic polyurethanes, median size is that 25 ones of 35 ones of 4 ones of silicon compounds, toluene, the butanone of 25nm adds in the empty container, and (500～1000rpm) stir, and the back adds 5 ones of pigment to high-speed stirring, 1 one of anti-xanthochromia medicament stirs.
With the solution that mixes up, use coating machine to be coated in the surface of separate-type paper uniformly, control its variation in thickness scope, through 70 ℃ * 1 minute, dry caudacoria moulding in 120 ℃ * 2 minutes was used the machine of peeling off specially that film is peeled and is surveyed its performance.
Use coating machine solution to be coated in uniformly the surface of separate-type paper in the above-mentioned steps; Control its variation in thickness scope; Can obtain the film of different thickness, the mean thickness that example obtains the film of variant thickness is respectively 11.2 μ m, 15.5 μ m, 24.7 μ m, 35.4 μ m.Between the kinetic friction coefficient 0.85～0.88 on film surface.The peak-to-peak distance of face adjacent two is between 1 μ m～20 μ m.The height at face peak is between 0.6 μ m～10 μ m.Film draw resistance to spalling more than 1.5N/cm.The elongation of film is between 50%～300%.
Relation does between each performance of product of the present invention
The leading indicator of each performance of product of the present invention and hydrophilic polyurethane film (being called film in the table) mean thickness is relatively seen table 1:
| Film mean thickness (μ m) | Water pressure resistance (mmH 2O) | Water Vapour Permeability (g/m 2·24h) | Feel |
| 11.2 | More than 10000 | 176559 | Soft |
| 15.5 | More than 10000 | 162223 | Soft |
| 24.7 | More than 10000 | 83899 | Soft |
| 35.4 | More than 10000 | 60725 | Hard partially |
Testing method and standard
(1) water pressure resistance is according to the standard testing (the film top adds 200 purpose filtering nets and makes base material, the recoverable deformation of controlling diaphragm) of JIS L1092.
(2) Water Vapour Permeability is according to the standard testing of JIS L1099.
(3) kinetic friction coefficient is according to the standard testing of GB/T 10006-1988.
(4) feel is appraised through comparison by rule of thumb.
(5) the skin exposure comfort level is appraised through comparison by rule of thumb.
(6) elongation of film is according to the standard testing (width of sample changes to the 5cm test, and pulling force is 80% test of film ultimate strength) of JIS L 1018
Product silicon compound content of the present invention and kinetic friction coefficient and skin exposure comfort level are relatively seen table 2:
| Silicon compound content | Kinetic friction coefficient | The skin exposure comfort level |
| 5％ | 0.89 | Good |
| 10％ | 0.87 | Good |
| 15％ | 0.85 | Good |
| 20％ | 0.80 | Difference |
Claims (6)
1. waterproof humidity-permeant film, it is characterized in that: be staple with the hydrophilic polyurethane, being added with particle diameter in the hydrophilic polyurethane composition is the inorganic compound particles of 10nm～25 μ m, and water pressure resistance is at 8000mmH
2More than the O, Water Vapour Permeability is at 60000g/m
2More than the 24hr; The content of inorganic compound particles is 1%～20%; Face adjacent two peak-to-peak distances are 1 μ m～20 μ m; Mineral compound is a silicon compound.
2. waterproof humidity-permeant film according to claim 1 is characterized in that: the kinetic friction coefficient on film surface is between 0.50～1.00.
3. waterproof humidity-permeant film according to claim 1 is characterized in that: the height at face peak is 0.6 μ m～10 μ m.
4. waterproof humidity-permeant film according to claim 1 is characterized in that: the thickness of film is 10 μ m～50 μ m.
5. waterproof humidity-permeant film according to claim 1 is characterized in that: film draw resistance to spalling more than 1.5N/cm.
6. waterproof humidity-permeant film according to claim 1 is characterized in that: the elongation of film is between 50%～300%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101312138A CN101372535B (en) | 2007-08-24 | 2007-08-24 | Waterproof moisture permeable membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101312138A CN101372535B (en) | 2007-08-24 | 2007-08-24 | Waterproof moisture permeable membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101372535A CN101372535A (en) | 2009-02-25 |
| CN101372535B true CN101372535B (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101312138A Expired - Fee Related CN101372535B (en) | 2007-08-24 | 2007-08-24 | Waterproof moisture permeable membrane |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104350762B (en) * | 2012-05-31 | 2018-09-11 | 日东电工株式会社 | Acoustic element protection component and waterproof case |
| CN106178971A (en) * | 2016-08-18 | 2016-12-07 | 嘉兴德永纺织品有限公司 | The manufacture method of wet method micro-porous film |
| CN107556715B (en) * | 2017-10-18 | 2020-02-21 | 安踏（中国）有限公司 | Waterproof moisture-permeable film and preparation method thereof |
| CN108976766B (en) * | 2018-06-22 | 2020-12-18 | 中山博锐斯新材料股份有限公司 | Waterproof moisture-permeable polyurethane microporous film and preparation method thereof |
| CN110760180B (en) * | 2018-07-26 | 2021-10-12 | 浙江华峰热塑性聚氨酯有限公司 | Waterproof moisture-permeable thermoplastic polyurethane polymer and preparation method thereof |
| CN115286856A (en) * | 2022-08-12 | 2022-11-04 | 广东汇齐新材料有限公司 | Master batch for polyurethane waterproof moisture-permeable film and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107192A (en) * | 1994-02-07 | 1995-08-23 | 财团法人中国纺织工业研究中心 | Fire-retardant water-proof products making method |
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2007
- 2007-08-24 CN CN2007101312138A patent/CN101372535B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107192A (en) * | 1994-02-07 | 1995-08-23 | 财团法人中国纺织工业研究中心 | Fire-retardant water-proof products making method |
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| CN101372535A (en) | 2009-02-25 |
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Effective date of registration: 20170315 Address after: 226009 Jiangsu province Nantong Ruixing economic and Technological Development Zone, Road No. 301 Patentee after: TORAY SAKAI WEAVING & DYEING (NANTONG) Co.,Ltd. Address before: 226009 Nantong Province Economic and Technological Development Zone, the New South Road, No. 58, No. Patentee before: TORAY FIBERS & TEXTILES RESEARCH LABORATORIES (CHINA) Co.,Ltd. |
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