CN104226529A - Preparation and application of water-based porous waterproof breathable film - Google Patents
Preparation and application of water-based porous waterproof breathable film Download PDFInfo
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- CN104226529A CN104226529A CN201410362451.XA CN201410362451A CN104226529A CN 104226529 A CN104226529 A CN 104226529A CN 201410362451 A CN201410362451 A CN 201410362451A CN 104226529 A CN104226529 A CN 104226529A
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Abstract
The invention discloses preparation and application of a water-based porous waterproof breathable film. The water-based porous waterproof breathable film comprises the following raw materials in parts by weight: 100 parts of water-based self-crosslinking PU coating agent, 15-30 parts of carboxymethyl cellulose, 0.5-2 parts of antifoaming agent and 80-120 parts of soft water. The preparation method of the water-based porous waterproof breathable film comprises the following steps: (1) preparing a coating agent; (2) coating; (3) steaming; and (4) drying. The application of the water-based porous waterproof breathable film comprises the step of laminating the water-based porous waterproof breathable film prepared by the preparation method disclosed by the invention to the fabric surface by using a hot melt adhesive by virtue of a gluing machine. The process is simple, and the fabric finished by the water-based porous waterproof breathable film prepared by the preparation method disclosed by the invention has excellent waterproof breathable performances and is soft in handfeel, comfortable to wear, low in production cost, high in additional value, environment-friendly, pollution-free and wide in application prospects.
Description
Technical field
The invention belongs to textile technology field, be specifically related to the preparations and applicatio of the micro-porous waterproof humidity-permeant film of a kind of water-based.
Background technology
Along with the development of society, the raising of people's living standard, people to functional, the wearing comfort of fabric and environmental requirement also more and more higher, waterproof moisture permeating fabric has critical role in functional textile.Waterproof moisture permeating fabric can be divided into three kinds by its processing method and principle:
(1) tight type waterproof moisture permeating fabric is that the superfine fibre being less than 1dtex by fineness is weaved, utilize fabric count interweave between gap or aperture be less than water droplet minimum diameter and be greater than the diameter of water vapour, thus reach the object of Waterproof Breathable.Tight type waterproof moisture permeating fabric lightweight robust thin, feel, poisture-penetrability and drapability are good, but Different Tear Test performance, water resistance are poor, and spinning and weaving needs special technique, and production cost is high, processing difficulties;
(2) coating type waterproof moisture permeating fabric take macromolecular material as coating agent, and be applied to fabric face with certain method and make its film forming and bond a kind of finishing technique anchoring at fabric face, it has good water resistance, but feel is not good, poisture-penetrability is poor;
(3) excellent waterproof and moisture permeability and wind-proof warming roll into one by thin layer die mould compound fabric, have obvious technical advantage.It is pressed onto on common fabric by non-porous hydrophilic membrane or moisture-inhibiting microporous membrane by means of special adhesive phase, learns from other's strong points to offset one's weaknesses, have good waterproof and moisture permeable effect.1976, along with PTFE(polytetrafluoroethylene (PTFE)) film moisture permeable laminated fabric Gore-tex succeeds in developing, and thin layer die mould waterproof moisture permeating fabric is developed rapidly.PTFE microporous barrier is that PTFE film is heated to below fusing point, extend rapidly with two-way, make it be fento shape microporous structure, it is said that this film has 9,000,000,000 holes per square inch, each pore diameter is all less than liquid water droplets diameter and is greater than water vapour diameter, therefore there is extremely excellent waterproofing and moisture-penetration performances, and can with the advantage such as any fabric laminated, selection range is wide, flexible design, of low pollution, but complex process, production cost is high, is difficult to volume production and promotes.
Summary of the invention
The present invention is directed to the deficiency that background technology proposes, researched and developed the preparations and applicatio of the micro-porous waterproof humidity-permeant film of a kind of water-based, its object is to provide that a kind of technique is simple, production cost is low, the preparation method of micro-porous waterproof humidity-permeant film of environmental protection.
Technical solution of the present invention:
The micro-porous waterproof humidity-permeant film of water-based, is characterized in that: raw materials used and weight is: waterborne self-crosslinkable PU coating agent: carboxymethyl cellulose fiber: defoamer: soft water=100:15 ~ 30:0.5 ~ 2:80 ~ 120.
The preparation of the micro-porous waterproof humidity-permeant film of water-based, is characterized in that: comprise the following steps:
(1) preparation of coating agent: by said ratio, carboxymethyl cellulose fiber (CMC) is added in waterborne self-crosslinkable PU coating agent, defoamer and soft water, with 4000 turns/min high-speed stirred, shearing 15 ~ 30min under high-speed shearing machine, make the carboxymethyl cellulose fiber granule (CMC fiber easily flocculates) gathered be well-dispersed in waterborne self-crosslinkable PU coating agent, obtained viscosity is the coating agent of 6000 ~ 9000cps;
(2) film: coating agent obtained in step (1) is formed film by means of the even blade coating of coating machine in release liners;
(3) decatize: film obtained in step (2) is positioned over temperature is 90 ~ 105 DEG C, relative humidity is process 5 ~ 10min in the steaming box of 85 ~ 100%RH.；
(4) dry: the film in step (3) after individual composition is dried 2 ~ 3min in 120 ~ 140 DEG C in an oven, the micro-porous waterproof humidity-permeant film of water-based of the present invention can be obtained.
The application of the micro-porous waterproof humidity-permeant film of water-based, is characterized in that: the micro-porous waterproof humidity-permeant film of water-based the present invention obtained by means of bonder PUR is laminated to fabric face.
Described waterborne self-crosslinkable PU coating agent model is HU-201B-2.
Described carboxymethyl cellulose fiber degree of etherification falling is 0.9 ~ 1.2.
Described defoamer model is USZ-10A.
In described preparation process (4), the thickness of the micro-porous waterproof humidity-permeant film of water-based is 15 ~ 20 μm.
In described application, PUR coating amount is 15g/m
2.
In described application, PUR viscosity is 10 Pas.
In described application, laminating temperature is 95 DEG C.
The principle of the invention is: scrape the release liners scribbling coating agent and be positioned over 90 ~ 105 DEG C, relative humidity is process 5 ~ 10min in the steaming box of 85 ~ 100%RH, because PU molecule does not absorb water, hydrone evaporation near it and slowly abundant curing cross-linked film forming (losing flowability), and carboxymethyl cellulose fiber (water imbibition the is extremely strong) particle gathered be scattered in film remains imbibition state as a supplement owing to constantly absorbing water vapour, then in 120 ~ 140 DEG C of baking ovens, 2 ~ 3min is dried, the carboxymethyl cellulose fiber particle dehydration smaller volume of moistening expansion and leave micropore on film, its principle schematic as shown in Figure 1.
Beneficial effect of the present invention: present invention process is simple, the fabric after water-based micro-porous waterproof humidity-permeant film arrangement prepared by the present invention has good waterproofing and moisture-penetration performances, and soft, comfortable and easy to wear, production cost is low, and added value is high, environmental protection and public nuisance free, has a extensive future.
Accompanying drawing explanation
Fig. 1 is principle of the invention schematic diagram.
Fig. 2 is the surface scan electron microscopic picture that Steaming conditions one (60 ~ 80 DEG C, 60 ~ 80%RH × 5 ~ 10min) forms film.
Fig. 3 is the profile scanning electron microscopic picture that Steaming conditions one (60 ~ 80 DEG C, 60 ~ 80%RH × 5 ~ 10min) forms film.
Fig. 4 is the surface scan electron microscopic picture that Steaming conditions two (90 ~ 105 DEG C, 85 ~ 100%RH × 5 ~ 10min) forms film.
Fig. 5 is the profile scanning electron microscopic picture that Steaming conditions two (90 ~ 105 DEG C, 85 ~ 100%RH × 5 ~ 10min) forms film.
Detailed description of the invention
Be below specific embodiments of the invention, these embodiments can be done further to supplement and illustrate to the present invention, but the present invention is not limited to these embodiments.
The performance test concrete grammar of following examples is as follows:
A. hydrostatic pressing test: test by GB/T4744-1997 standard, unit is mm water column;
B. poisture-penetrability test: by GB/T12704-1991 " textile fabric vapor transfer rate method of testing-moisture-inhibiting agar diffusion method " test, adopt positive moisture-inhibiting agar diffusion method during test.
Embodiment 1(Steaming conditions one
)
(1) preparation of coating agent: add 15 parts of carboxymethyl cellulose fibers in 100 parts of waterborne self-crosslinkable PU coating agent HU-201B-2,0.5 part of defoamer USZ-10A and 80.5 part soft water, with 4000 turns/min high-speed stirred, shearing 20min under high-speed shearing machine, make the carboxymethyl cellulose fiber granule (CMC fiber easily flocculates) gathered be well-dispersed in PU coating agent HU-201B-2, obtained viscosity is the coating agent of 8600cps;
(2) film: by above-mentioned obtained coating agent by means of the even blade coating of coating machine in release liners;
(3) decatize: to be positioned over temperature be 60 DEG C and relative humidity above-mentioned film is process 10min in steaming box under 75%RH condition;
(4) dry: the film after above-mentioned individual composition is dried 3min in 130 DEG C of baking ovens, take out and the film be formed in release liners can be taken off use.
Can see from Fig. 2 (the surperficial electron microscopic picture of film) and Fig. 3 (the section electron microscopic picture of film), 60 DEG C, the film that processes 10min obtained under the wet heat condition of 75%RH relative humidity do not form micropore.Consider that its reason is, the steam temperature of 60 DEG C is lower, after 10min, PU molecule does not have complete selfing to join and still has certain mobility, in 130 DEG C of drying courses, and the micropore that the CMC particle that PU coating agent fills and leads up extreme expansion again stays due to rapid dehydration volume-diminished.
Embodiment 2(Steaming conditions two
)
(1) preparation of coating agent: add 15 parts of carboxymethyl cellulose fibers in 100 parts of waterborne self-crosslinkable PU coating agent HU-201B-2,0.5 part of defoamer USZ-10A and 80.5 part soft water, with 4000 turns/min high-speed stirred, shearing 20min under high-speed shearing machine, make the carboxymethyl cellulose fiber granule (CMC fiber easily flocculates) gathered be well-dispersed in PU coating agent HU-201B-2, obtained viscosity is the coating agent of 8600cps;
(2) film: by above-mentioned obtained coating agent by means of the even blade coating of coating machine in release liners;
(3) decatize: to be positioned over temperature be 95 DEG C and relative humidity above-mentioned film is process 10min in steaming box under 100%RH condition;
(4) dry: the film after above-mentioned individual composition is dried 3min in 130 DEG C of baking ovens, take out and the film be formed in release liners can be taken off use.
Can see from Fig. 4 (the surperficial electron microscopic picture of film) and Fig. 5 (the section electron microscopic picture of film), 95 DEG C, process 10min under the wet heat condition of 100%RH relative humidity and define the microporous barrier that diameter through is in a large number less than 20 μm (being less than the minimum diameter of liquid water droplets).Consider that its reason is, 95 DEG C, decatize 10min under 100%RH relative humidities, PU molecule solidifies self-crosslinking completely and loses flowability, 3min is dried under 130 DEG C of conditions, the CMC particle dehydration volume being scattered in the imbibition in PU molecule greatly reduces and in film, leaves micropore, because PU molecule is at 95 DEG C, curing cross-linked and losing flowability completely during decatize under 100%RH relative humidities, thus the CMC particle dehydration volume-diminished can not again filled up owing to gathering and the micropore stayed.
Example
3(application on hair bamboo/polyester blended fabric)
Fabric: hair washs one side serge (wool: 50%, terylene 50%)
Micro-for water-based obtained by Steaming conditions two porous waterproof humidity-permeant film is laminated to hair by means of bonder PUR to wash on one side serge and to test its waterproofing and moisture-penetration performances, wherein, PUR coating amount is 15g/m
2, PUR viscosity is 10 Pas, and laminating temperature is 95 DEG C.
Microporous film layers is pressed onto hair, and to wash the performance test results of fabric after one side serge fabric as follows:
A. resistance to hydrostatic pressure: 750mm water column;
B. vapor transfer rate: 8860g/m
224h.
Therefore, this microporous film layers is pressed onto hair and washs on one side serge fabric, has good waterproof
Water vapour permeability, comfortable and easy to wear, production cost is low, and added value is high, and environment friendly and pollution-free, has a extensive future.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention; In like manner, the profile that description of the present invention provides and structural representation, the step of also just structure of the present invention and installation for convenience of description and method are not the restrictions to profile of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to spirit institute's apparent change of extending out of the present invention or change and are still among protection scope of the present invention.
Claims (10)
1. the micro-porous waterproof humidity-permeant film of water-based, is characterized in that: raw materials used and weight is: waterborne self-crosslinkable PU coating agent: carboxymethyl cellulose fiber: defoamer: soft water=100:15 ~ 30:0.5 ~ 2:80 ~ 120.
2. the preparation of the micro-porous waterproof humidity-permeant film of water-based, it is characterized in that: comprise the following steps: the preparation of (1) coating agent: by said ratio, carboxymethyl cellulose fiber is added in waterborne self-crosslinkable PU coating agent, defoamer and soft water, with 4000 turns/min high-speed stirred, shearing 15 ~ 30min under high-speed shearing machine, make the carboxymethyl cellulose fiber granule gathered be well-dispersed in waterborne self-crosslinkable PU coating agent, obtained viscosity is the coating agent of 6000 ~ 9000cps;
(2) film: coating agent obtained in step (1) is formed film by means of the even blade coating of coating machine in release liners;
(3) decatize: film obtained in step (2) is positioned over temperature is 90 ~ 105 DEG C, relative humidity is process 5 ~ 10min in the steaming box of 85 ~ 100%RH;
(4) dry: the film in step (3) after individual composition is dried 2 ~ 3min in 120 ~ 140 DEG C in an oven, the micro-porous waterproof humidity-permeant film of water-based of the present invention can be obtained.
3. the application of the micro-porous waterproof humidity-permeant film of water-based, is characterized in that: the micro-porous waterproof humidity-permeant film of water-based the present invention obtained by means of bonder PUR is laminated to fabric face.
4. the micro-porous waterproof humidity-permeant film of a kind of water-based as claimed in claim 1, is characterized in that: described waterborne self-crosslinkable PU coating agent model is HU-201B-2.
5. the micro-porous waterproof humidity-permeant film of a kind of water-based as claimed in claim 1, is characterized in that: described carboxymethyl cellulose fiber degree of etherification falling is 0.9 ~ 1.2.
6. the micro-porous waterproof humidity-permeant film of a kind of water-based as claimed in claim 1, is characterized in that: described defoamer model is USZ-10A.
7. the preparation of the micro-porous waterproof humidity-permeant film of a kind of water-based as claimed in claim 2, is characterized in that: in described step (4), the thickness of the micro-porous waterproof humidity-permeant film of water-based is 15 ~ 20 μm.
8. the application of the micro-porous waterproof humidity-permeant film of a kind of water-based as claimed in claim 3, is characterized in that: described PUR coating amount is 15g/m
2.
9. the application of the micro-porous waterproof humidity-permeant film of a kind of water-based as claimed in claim 3, is characterized in that: described PUR viscosity is 10 Pas.
10. the application of the micro-porous waterproof humidity-permeant film of a kind of water-based as claimed in claim 3, is characterized in that: described laminating temperature is 95 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410362451.XA CN104226529A (en) | 2014-07-29 | 2014-07-29 | Preparation and application of water-based porous waterproof breathable film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410362451.XA CN104226529A (en) | 2014-07-29 | 2014-07-29 | Preparation and application of water-based porous waterproof breathable film |
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| CN104226529A true CN104226529A (en) | 2014-12-24 |
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ID=52215945
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| CN201410362451.XA Pending CN104226529A (en) | 2014-07-29 | 2014-07-29 | Preparation and application of water-based porous waterproof breathable film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504064A (en) * | 2018-10-26 | 2019-03-22 | 厦门安踏体育用品有限公司 | A kind of macromolecular elastomer film, fabric and preparation method thereof |
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| JP2001048621A (en) * | 1999-08-12 | 2001-02-20 | Sumitomo Seika Chem Co Ltd | Additive for water permeable concrete |
| CN101481579A (en) * | 2008-12-23 | 2009-07-15 | 中国人民解放军总后勤部军需装备研究所 | Waterproof moisture permeable modified polyurethane coating glue and preparation thereof |
| CN103030963A (en) * | 2011-09-30 | 2013-04-10 | 东丽纤维研究所（中国）有限公司 | Functional membrane, production method and fabric |
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2014
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Patent Citations (3)
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|---|---|---|---|---|
| JP2001048621A (en) * | 1999-08-12 | 2001-02-20 | Sumitomo Seika Chem Co Ltd | Additive for water permeable concrete |
| CN101481579A (en) * | 2008-12-23 | 2009-07-15 | 中国人民解放军总后勤部军需装备研究所 | Waterproof moisture permeable modified polyurethane coating glue and preparation thereof |
| CN103030963A (en) * | 2011-09-30 | 2013-04-10 | 东丽纤维研究所（中国）有限公司 | Functional membrane, production method and fabric |
Non-Patent Citations (3)
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|---|
| 吕海宁等: "PU型防水透湿层压复合织物的制备工艺及研究进展", 《聚氨酯工业》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504064A (en) * | 2018-10-26 | 2019-03-22 | 厦门安踏体育用品有限公司 | A kind of macromolecular elastomer film, fabric and preparation method thereof |
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Application publication date: 20141224 |
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